<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html>
<head>
<!-- Generated by HsColour, http://www.cs.york.ac.uk/fp/darcs/hscolour/ -->
<title>src/Language/Haskell/Exts/ParseUtils.hs</title>
<link type='text/css' rel='stylesheet' href='hscolour.css' />
</head>
<body>
<pre><a name="line-1"></a><span class='hs-comment'>{-# OPTIONS_HADDOCK hide #-}</span>
<a name="line-2"></a><span class='hs-comment'>-----------------------------------------------------------------------------</span>
<a name="line-3"></a><span class='hs-comment'>-- |</span>
<a name="line-4"></a><span class='hs-comment'>-- Module : Language.Haskell.Exts.ParseUtils</span>
<a name="line-5"></a><span class='hs-comment'>-- Copyright : (c) Niklas Broberg 2004-2009,</span>
<a name="line-6"></a><span class='hs-comment'>-- (c) The GHC Team, 1997-2000</span>
<a name="line-7"></a><span class='hs-comment'>-- License : BSD-style (see the file LICENSE.txt)</span>
<a name="line-8"></a><span class='hs-comment'>--</span>
<a name="line-9"></a><span class='hs-comment'>-- Maintainer : Niklas Broberg, d00nibro@chalmers.se</span>
<a name="line-10"></a><span class='hs-comment'>-- Stability : stable</span>
<a name="line-11"></a><span class='hs-comment'>-- Portability : portable</span>
<a name="line-12"></a><span class='hs-comment'>--</span>
<a name="line-13"></a><span class='hs-comment'>-- Utilities for the Haskell-exts parser.</span>
<a name="line-14"></a><span class='hs-comment'>--</span>
<a name="line-15"></a><span class='hs-comment'>-----------------------------------------------------------------------------</span>
<a name="line-16"></a>
<a name="line-17"></a><span class='hs-keyword'>module</span> <span class='hs-conid'>Language</span><span class='hs-varop'>.</span><span class='hs-conid'>Haskell</span><span class='hs-varop'>.</span><span class='hs-conid'>Exts</span><span class='hs-varop'>.</span><span class='hs-conid'>ParseUtils</span> <span class='hs-layout'>(</span>
<a name="line-18"></a> <span class='hs-varid'>splitTyConApp</span> <span class='hs-comment'>-- PType -> P (Name,[Type])</span>
<a name="line-19"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>checkEnabled</span> <span class='hs-comment'>-- (Show e, Enabled e) => e -> P ()</span>
<a name="line-20"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>checkPatternGuards</span> <span class='hs-comment'>-- [Stmt] -> P ()</span>
<a name="line-21"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>mkRecConstrOrUpdate</span> <span class='hs-comment'>-- PExp -> [PFieldUpdate] -> P Exp</span>
<a name="line-22"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>checkPrec</span> <span class='hs-comment'>-- Integer -> P Int</span>
<a name="line-23"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>checkPContext</span> <span class='hs-comment'>-- PType -> P PContext</span>
<a name="line-24"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>checkContext</span> <span class='hs-comment'>-- PContext -> P Context</span>
<a name="line-25"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>checkAssertion</span> <span class='hs-comment'>-- PType -> P PAsst</span>
<a name="line-26"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>checkDataHeader</span> <span class='hs-comment'>-- PType -> P (Context,Name,[TyVarBind])</span>
<a name="line-27"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>checkClassHeader</span> <span class='hs-comment'>-- PType -> P (Context,Name,[TyVarBind])</span>
<a name="line-28"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>checkInstHeader</span> <span class='hs-comment'>-- PType -> P (Context,QName,[Type])</span>
<a name="line-29"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>checkDeriving</span> <span class='hs-comment'>-- [PType] -> P [Deriving]</span>
<a name="line-30"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>checkPattern</span> <span class='hs-comment'>-- PExp -> P Pat</span>
<a name="line-31"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>checkExpr</span> <span class='hs-comment'>-- PExp -> P Exp</span>
<a name="line-32"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>checkType</span> <span class='hs-comment'>-- PType -> P Type</span>
<a name="line-33"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>checkValDef</span> <span class='hs-comment'>-- SrcLoc -> PExp -> Maybe Type -> Rhs -> Binds -> P Decl</span>
<a name="line-34"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>checkClassBody</span> <span class='hs-comment'>-- [ClassDecl] -> P [ClassDecl]</span>
<a name="line-35"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>checkInstBody</span> <span class='hs-comment'>-- [InstDecl] -> P [InstDecl]</span>
<a name="line-36"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>checkUnQual</span> <span class='hs-comment'>-- QName -> P Name</span>
<a name="line-37"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>checkRevDecls</span> <span class='hs-comment'>-- [Decl] -> P [Decl]</span>
<a name="line-38"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>checkRevClsDecls</span> <span class='hs-comment'>-- [ClassDecl] -> P [ClassDecl]</span>
<a name="line-39"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>checkRevInstDecls</span> <span class='hs-comment'>-- [InstDecl] -> P [InstDecl]</span>
<a name="line-40"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>checkDataOrNew</span> <span class='hs-comment'>-- DataOrNew -> [QualConDecl] -> P ()</span>
<a name="line-41"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>checkDataOrNewG</span> <span class='hs-comment'>-- DataOrNew -> [GadtDecl] -> P ()</span>
<a name="line-42"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>checkSimpleType</span> <span class='hs-comment'>-- PType -> P (Name, [TyVarBind])</span>
<a name="line-43"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>checkSigVar</span> <span class='hs-comment'>-- PExp -> P Name</span>
<a name="line-44"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>getGConName</span> <span class='hs-comment'>-- S.Exp -> P QName</span>
<a name="line-45"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>mkTyForall</span> <span class='hs-comment'>-- Maybe [TyVarBind] -> PContext -> PType -> PType</span>
<a name="line-46"></a> <span class='hs-comment'>-- HaRP</span>
<a name="line-47"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>checkRPattern</span> <span class='hs-comment'>-- PExp -> P RPat</span>
<a name="line-48"></a> <span class='hs-comment'>-- Hsx</span>
<a name="line-49"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>checkEqNames</span> <span class='hs-comment'>-- XName -> XName -> P XName</span>
<a name="line-50"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>checkPageModule</span>
<a name="line-51"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>checkHybridModule</span>
<a name="line-52"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>mkDVar</span> <span class='hs-comment'>-- [String] -> String</span>
<a name="line-53"></a> <span class='hs-comment'>-- Pragmas</span>
<a name="line-54"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>checkRuleExpr</span> <span class='hs-comment'>-- PExp -> P Exp</span>
<a name="line-55"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>readTool</span> <span class='hs-comment'>-- Maybe String -> Maybe Tool</span>
<a name="line-56"></a>
<a name="line-57"></a> <span class='hs-comment'>-- Parsed expressions and types</span>
<a name="line-58"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>PExp</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-conid'>PFieldUpdate</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-conid'>ParseXAttr</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-conid'>PType</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-conid'>PContext</span><span class='hs-layout'>,</span> <span class='hs-conid'>PAsst</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span>
<a name="line-59"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>p_unit_con</span> <span class='hs-comment'>-- PExp</span>
<a name="line-60"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>p_tuple_con</span> <span class='hs-comment'>-- Boxed -> Int -> PExp</span>
<a name="line-61"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>p_unboxed_singleton_con</span> <span class='hs-comment'>-- PExp</span>
<a name="line-62"></a> <span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-63"></a>
<a name="line-64"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Language</span><span class='hs-varop'>.</span><span class='hs-conid'>Haskell</span><span class='hs-varop'>.</span><span class='hs-conid'>Exts</span><span class='hs-varop'>.</span><span class='hs-conid'>Annotated</span><span class='hs-varop'>.</span><span class='hs-conid'>Syntax</span> <span class='hs-varid'>hiding</span> <span class='hs-layout'>(</span> <span class='hs-conid'>Type</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-conid'>Asst</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-conid'>Exp</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-conid'>FieldUpdate</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-conid'>XAttr</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-conid'>Context</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span> <span class='hs-layout'>)</span>
<a name="line-65"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>Language</span><span class='hs-varop'>.</span><span class='hs-conid'>Haskell</span><span class='hs-varop'>.</span><span class='hs-conid'>Exts</span><span class='hs-varop'>.</span><span class='hs-conid'>Annotated</span><span class='hs-varop'>.</span><span class='hs-conid'>Syntax</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>S</span> <span class='hs-layout'>(</span> <span class='hs-conid'>Type</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-conid'>Asst</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-conid'>Exp</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-conid'>FieldUpdate</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-conid'>XAttr</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-conid'>Context</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span> <span class='hs-layout'>)</span>
<a name="line-66"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Language</span><span class='hs-varop'>.</span><span class='hs-conid'>Haskell</span><span class='hs-varop'>.</span><span class='hs-conid'>Exts</span><span class='hs-varop'>.</span><span class='hs-conid'>Annotated</span><span class='hs-varop'>.</span><span class='hs-conid'>Build</span>
<a name="line-67"></a>
<a name="line-68"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Language</span><span class='hs-varop'>.</span><span class='hs-conid'>Haskell</span><span class='hs-varop'>.</span><span class='hs-conid'>Exts</span><span class='hs-varop'>.</span><span class='hs-conid'>ParseSyntax</span>
<a name="line-69"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Language</span><span class='hs-varop'>.</span><span class='hs-conid'>Haskell</span><span class='hs-varop'>.</span><span class='hs-conid'>Exts</span><span class='hs-varop'>.</span><span class='hs-conid'>ParseMonad</span>
<a name="line-70"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Language</span><span class='hs-varop'>.</span><span class='hs-conid'>Haskell</span><span class='hs-varop'>.</span><span class='hs-conid'>Exts</span><span class='hs-varop'>.</span><span class='hs-conid'>Pretty</span>
<a name="line-71"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Language</span><span class='hs-varop'>.</span><span class='hs-conid'>Haskell</span><span class='hs-varop'>.</span><span class='hs-conid'>Exts</span><span class='hs-varop'>.</span><span class='hs-conid'>SrcLoc</span>
<a name="line-72"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Language</span><span class='hs-varop'>.</span><span class='hs-conid'>Haskell</span><span class='hs-varop'>.</span><span class='hs-conid'>Exts</span><span class='hs-varop'>.</span><span class='hs-conid'>Extension</span>
<a name="line-73"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Language</span><span class='hs-varop'>.</span><span class='hs-conid'>Haskell</span><span class='hs-varop'>.</span><span class='hs-conid'>Exts</span><span class='hs-varop'>.</span><span class='hs-conid'>ExtScheme</span>
<a name="line-74"></a>
<a name="line-75"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>List</span> <span class='hs-layout'>(</span><span class='hs-varid'>intersperse</span><span class='hs-layout'>)</span>
<a name="line-76"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Maybe</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromJust</span><span class='hs-layout'>)</span>
<a name="line-77"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Monad</span> <span class='hs-layout'>(</span><span class='hs-varid'>when</span><span class='hs-layout'>,</span><span class='hs-varid'>liftM</span><span class='hs-layout'>)</span>
<a name="line-78"></a>
<a name="line-79"></a><span class='hs-comment'>--- import Debug.Trace (trace)</span>
<a name="line-80"></a>
<a name="line-81"></a><a name="L"></a><span class='hs-keyword'>type</span> <span class='hs-conid'>L</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>SrcSpanInfo</span>
<a name="line-82"></a><a name="S"></a><span class='hs-keyword'>type</span> <span class='hs-conid'>S</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>SrcSpan</span>
<a name="line-83"></a>
<a name="line-84"></a><a name="splitTyConApp"></a><span class='hs-definition'>splitTyConApp</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PType</span> <span class='hs-conid'>L</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>P</span> <span class='hs-layout'>(</span><span class='hs-conid'>Name</span> <span class='hs-conid'>L</span><span class='hs-layout'>,</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>Type</span> <span class='hs-conid'>L</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span>
<a name="line-85"></a><span class='hs-definition'>splitTyConApp</span> <span class='hs-varid'>t0</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-86"></a> <span class='hs-layout'>(</span><span class='hs-varid'>n</span><span class='hs-layout'>,</span> <span class='hs-varid'>pts</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>split</span> <span class='hs-varid'>t0</span> <span class='hs-conid'>[]</span>
<a name="line-87"></a> <span class='hs-varid'>ts</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>mapM</span> <span class='hs-varid'>checkType</span> <span class='hs-varid'>pts</span>
<a name="line-88"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>n</span><span class='hs-layout'>,</span><span class='hs-varid'>ts</span><span class='hs-layout'>)</span>
<a name="line-89"></a> <span class='hs-keyword'>where</span>
<a name="line-90"></a> <span class='hs-varid'>split</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PType</span> <span class='hs-conid'>L</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>PType</span> <span class='hs-conid'>L</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>P</span> <span class='hs-layout'>(</span><span class='hs-conid'>Name</span> <span class='hs-conid'>L</span><span class='hs-layout'>,</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>PType</span> <span class='hs-conid'>L</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span>
<a name="line-91"></a> <span class='hs-varid'>split</span> <span class='hs-layout'>(</span><span class='hs-conid'>TyApp</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>t</span> <span class='hs-varid'>u</span><span class='hs-layout'>)</span> <span class='hs-varid'>ts</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>split</span> <span class='hs-varid'>t</span> <span class='hs-layout'>(</span><span class='hs-varid'>u</span><span class='hs-conop'>:</span><span class='hs-varid'>ts</span><span class='hs-layout'>)</span>
<a name="line-92"></a> <span class='hs-varid'>split</span> <span class='hs-layout'>(</span><span class='hs-conid'>TyCon</span> <span class='hs-keyword'>_</span> <span class='hs-layout'>(</span><span class='hs-conid'>UnQual</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-varid'>ts</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>t</span><span class='hs-layout'>,</span><span class='hs-varid'>ts</span><span class='hs-layout'>)</span>
<a name="line-93"></a> <span class='hs-varid'>split</span> <span class='hs-layout'>(</span><span class='hs-conid'>TyInfix</span> <span class='hs-varid'>l</span> <span class='hs-varid'>a</span> <span class='hs-varid'>op</span> <span class='hs-varid'>b</span><span class='hs-layout'>)</span> <span class='hs-varid'>ts</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>split</span> <span class='hs-layout'>(</span><span class='hs-conid'>TyCon</span> <span class='hs-varid'>l</span> <span class='hs-varid'>op</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>a</span><span class='hs-conop'>:</span><span class='hs-varid'>b</span><span class='hs-conop'>:</span><span class='hs-varid'>ts</span><span class='hs-layout'>)</span>
<a name="line-94"></a> <span class='hs-varid'>split</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fail</span> <span class='hs-str'>"Illegal data/newtype declaration"</span>
<a name="line-95"></a>
<a name="line-96"></a><span class='hs-comment'>-----------------------------------------------------------------------------</span>
<a name="line-97"></a><span class='hs-comment'>-- Checking for extensions</span>
<a name="line-98"></a>
<a name="line-99"></a><a name="checkEnabled"></a><span class='hs-definition'>checkEnabled</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Show</span> <span class='hs-varid'>e</span><span class='hs-layout'>,</span> <span class='hs-conid'>Enabled</span> <span class='hs-varid'>e</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=></span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>P</span> <span class='hs-conid'>()</span>
<a name="line-100"></a><span class='hs-definition'>checkEnabled</span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-101"></a> <span class='hs-varid'>exts</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getExtensions</span>
<a name="line-102"></a> <span class='hs-keyword'>if</span> <span class='hs-varid'>isEnabled</span> <span class='hs-varid'>e</span> <span class='hs-varid'>exts</span>
<a name="line-103"></a> <span class='hs-keyword'>then</span> <span class='hs-varid'>return</span> <span class='hs-conid'>()</span>
<a name="line-104"></a> <span class='hs-keyword'>else</span> <span class='hs-varid'>fail</span> <span class='hs-varop'>$</span> <span class='hs-varid'>show</span> <span class='hs-varid'>e</span> <span class='hs-varop'>++</span> <span class='hs-str'>" is not enabled"</span>
<a name="line-105"></a>
<a name="line-106"></a><a name="checkPatternGuards"></a><span class='hs-definition'>checkPatternGuards</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Stmt</span> <span class='hs-conid'>L</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>P</span> <span class='hs-conid'>()</span>
<a name="line-107"></a><span class='hs-definition'>checkPatternGuards</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Qualifier</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-conid'>()</span>
<a name="line-108"></a><span class='hs-definition'>checkPatternGuards</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>checkEnabled</span> <span class='hs-conid'>PatternGuards</span>
<a name="line-109"></a>
<a name="line-110"></a><span class='hs-comment'>-----------------------------------------------------------------------------</span>
<a name="line-111"></a><span class='hs-comment'>-- Checking contexts</span>
<a name="line-112"></a>
<a name="line-113"></a><a name="checkPContext"></a><span class='hs-comment'>-- Check that a context is syntactically correct. Takes care of</span>
<a name="line-114"></a><span class='hs-comment'>-- checking for MPTCs, TypeOperators, TypeFamilies (for eq constraints)</span>
<a name="line-115"></a><span class='hs-comment'>-- and ImplicitParameters, but leaves checking of the class assertion</span>
<a name="line-116"></a><span class='hs-comment'>-- parameters for later.</span>
<a name="line-117"></a><span class='hs-definition'>checkPContext</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PType</span> <span class='hs-conid'>L</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>P</span> <span class='hs-layout'>(</span><span class='hs-conid'>PContext</span> <span class='hs-conid'>L</span><span class='hs-layout'>)</span>
<a name="line-118"></a><span class='hs-definition'>checkPContext</span> <span class='hs-layout'>(</span><span class='hs-conid'>TyTuple</span> <span class='hs-varid'>l</span> <span class='hs-conid'>Boxed</span> <span class='hs-varid'>ts</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-119"></a> <span class='hs-varid'>mapM</span> <span class='hs-varid'>checkAssertion</span> <span class='hs-varid'>ts</span> <span class='hs-varop'>>>=</span> <span class='hs-varid'>return</span> <span class='hs-varop'>.</span> <span class='hs-conid'>CxTuple</span> <span class='hs-varid'>l</span>
<a name="line-120"></a><span class='hs-definition'>checkPContext</span> <span class='hs-layout'>(</span><span class='hs-conid'>TyCon</span> <span class='hs-varid'>l</span> <span class='hs-layout'>(</span><span class='hs-conid'>Special</span> <span class='hs-keyword'>_</span> <span class='hs-layout'>(</span><span class='hs-conid'>UnitCon</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-121"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>CxEmpty</span> <span class='hs-varid'>l</span>
<a name="line-122"></a><span class='hs-definition'>checkPContext</span> <span class='hs-layout'>(</span><span class='hs-conid'>TyParen</span> <span class='hs-varid'>l</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-123"></a> <span class='hs-varid'>c</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>checkPContext</span> <span class='hs-varid'>t</span>
<a name="line-124"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>CxParen</span> <span class='hs-varid'>l</span> <span class='hs-varid'>c</span>
<a name="line-125"></a><span class='hs-definition'>checkPContext</span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-126"></a> <span class='hs-varid'>c</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>checkAssertion</span> <span class='hs-varid'>t</span>
<a name="line-127"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>CxSingle</span> <span class='hs-layout'>(</span><span class='hs-varid'>ann</span> <span class='hs-varid'>c</span><span class='hs-layout'>)</span> <span class='hs-varid'>c</span>
<a name="line-128"></a>
<a name="line-129"></a><span class='hs-comment'>------------------------------------------------------------------------------------------------------------------- WORKING HERE</span>
<a name="line-130"></a>
<a name="line-131"></a><a name="checkAssertion"></a><span class='hs-comment'>-- Check a single assertion according to the above, still leaving</span>
<a name="line-132"></a><span class='hs-comment'>-- the class assertion parameters for later.</span>
<a name="line-133"></a><span class='hs-definition'>checkAssertion</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PType</span> <span class='hs-conid'>L</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>P</span> <span class='hs-layout'>(</span><span class='hs-conid'>PAsst</span> <span class='hs-conid'>L</span><span class='hs-layout'>)</span>
<a name="line-134"></a><span class='hs-comment'>-- We cannot even get here unless ImplicitParameters is enabled.</span>
<a name="line-135"></a><span class='hs-definition'>checkAssertion</span> <span class='hs-layout'>(</span><span class='hs-conid'>TyPred</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>p</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>IParam</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-varid'>p</span>
<a name="line-136"></a><span class='hs-comment'>-- We cannot even get here unless TypeFamilies is enabled.</span>
<a name="line-137"></a><span class='hs-definition'>checkAssertion</span> <span class='hs-layout'>(</span><span class='hs-conid'>TyPred</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>p</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>EqualP</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-varid'>p</span>
<a name="line-138"></a><span class='hs-definition'>checkAssertion</span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>checkAssertion'</span> <span class='hs-varid'>id</span> <span class='hs-conid'>[]</span> <span class='hs-varid'>t</span>
<a name="line-139"></a> <span class='hs-keyword'>where</span> <span class='hs-comment'>-- class assertions must have at least one argument</span>
<a name="line-140"></a> <span class='hs-varid'>checkAssertion'</span> <span class='hs-varid'>fl</span> <span class='hs-varid'>ts</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-keyword'>_</span><span class='hs-conop'>:</span><span class='hs-varid'>xs</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>TyCon</span> <span class='hs-varid'>l</span> <span class='hs-varid'>c</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-141"></a> <span class='hs-varid'>when</span> <span class='hs-layout'>(</span><span class='hs-varid'>not</span> <span class='hs-varop'>$</span> <span class='hs-varid'>null</span> <span class='hs-varid'>xs</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-varid'>checkEnabled</span> <span class='hs-conid'>MultiParamTypeClasses</span>
<a name="line-142"></a> <span class='hs-varid'>when</span> <span class='hs-layout'>(</span><span class='hs-varid'>isSymbol</span> <span class='hs-varid'>c</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-varid'>checkEnabled</span> <span class='hs-conid'>TypeOperators</span>
<a name="line-143"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>ClassA</span> <span class='hs-layout'>(</span><span class='hs-varid'>fl</span> <span class='hs-varid'>l</span><span class='hs-layout'>)</span> <span class='hs-varid'>c</span> <span class='hs-varid'>ts</span>
<a name="line-144"></a> <span class='hs-varid'>checkAssertion'</span> <span class='hs-varid'>fl</span> <span class='hs-varid'>ts</span> <span class='hs-layout'>(</span><span class='hs-conid'>TyApp</span> <span class='hs-varid'>l</span> <span class='hs-varid'>a</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-145"></a> <span class='hs-comment'>-- no check on t at this stage</span>
<a name="line-146"></a> <span class='hs-varid'>checkAssertion'</span> <span class='hs-layout'>(</span><span class='hs-varid'>const</span> <span class='hs-layout'>(</span><span class='hs-varid'>fl</span> <span class='hs-varid'>l</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>t</span><span class='hs-conop'>:</span><span class='hs-varid'>ts</span><span class='hs-layout'>)</span> <span class='hs-varid'>a</span>
<a name="line-147"></a> <span class='hs-varid'>checkAssertion'</span> <span class='hs-varid'>fl</span> <span class='hs-varid'>ts</span> <span class='hs-layout'>(</span><span class='hs-conid'>TyInfix</span> <span class='hs-varid'>l</span> <span class='hs-varid'>a</span> <span class='hs-varid'>op</span> <span class='hs-varid'>b</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-148"></a> <span class='hs-comment'>-- infix operators require TypeOperators</span>
<a name="line-149"></a> <span class='hs-varid'>checkEnabled</span> <span class='hs-conid'>TypeOperators</span>
<a name="line-150"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>InfixA</span> <span class='hs-layout'>(</span><span class='hs-varid'>fl</span> <span class='hs-varid'>l</span><span class='hs-layout'>)</span> <span class='hs-varid'>a</span> <span class='hs-varid'>op</span> <span class='hs-varid'>b</span>
<a name="line-151"></a> <span class='hs-varid'>checkAssertion'</span> <span class='hs-varid'>fl</span> <span class='hs-varid'>ts</span> <span class='hs-layout'>(</span><span class='hs-conid'>TyParen</span> <span class='hs-varid'>l</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-152"></a> <span class='hs-varid'>checkAssertion'</span> <span class='hs-layout'>(</span><span class='hs-varid'>const</span> <span class='hs-layout'>(</span><span class='hs-varid'>fl</span> <span class='hs-varid'>l</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-varid'>ts</span> <span class='hs-varid'>t</span>
<a name="line-153"></a> <span class='hs-varid'>checkAssertion'</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fail</span> <span class='hs-str'>"Illegal class assertion"</span>
<a name="line-154"></a>
<a name="line-155"></a><a name="isSymbol"></a><span class='hs-definition'>isSymbol</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>QName</span> <span class='hs-conid'>L</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Bool</span>
<a name="line-156"></a><span class='hs-definition'>isSymbol</span> <span class='hs-layout'>(</span><span class='hs-conid'>UnQual</span> <span class='hs-keyword'>_</span> <span class='hs-layout'>(</span><span class='hs-conid'>Symbol</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>True</span>
<a name="line-157"></a><span class='hs-definition'>isSymbol</span> <span class='hs-layout'>(</span><span class='hs-conid'>Qual</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-layout'>(</span><span class='hs-conid'>Symbol</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>True</span>
<a name="line-158"></a><span class='hs-definition'>isSymbol</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>False</span>
<a name="line-159"></a>
<a name="line-160"></a>
<a name="line-161"></a><a name="checkSContext"></a><span class='hs-comment'>-- Checks simple contexts for class and instance</span>
<a name="line-162"></a><span class='hs-comment'>-- headers. If FlexibleContexts is enabled then</span>
<a name="line-163"></a><span class='hs-comment'>-- anything goes, otherwise only tyvars are allowed.</span>
<a name="line-164"></a><span class='hs-definition'>checkSContext</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Maybe</span> <span class='hs-layout'>(</span><span class='hs-conid'>PContext</span> <span class='hs-conid'>L</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>P</span> <span class='hs-layout'>(</span><span class='hs-conid'>Maybe</span> <span class='hs-layout'>(</span><span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>Context</span> <span class='hs-conid'>L</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-165"></a><span class='hs-definition'>checkSContext</span> <span class='hs-layout'>(</span><span class='hs-conid'>Just</span> <span class='hs-varid'>ctxt</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>ctxt</span> <span class='hs-keyword'>of</span>
<a name="line-166"></a> <span class='hs-conid'>CxEmpty</span> <span class='hs-varid'>l</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>Just</span> <span class='hs-varop'>$</span> <span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>CxEmpty</span> <span class='hs-varid'>l</span>
<a name="line-167"></a> <span class='hs-conid'>CxSingle</span> <span class='hs-varid'>l</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>checkAsst</span> <span class='hs-conid'>True</span> <span class='hs-varid'>a</span> <span class='hs-varop'>>>=</span> <span class='hs-varid'>return</span> <span class='hs-varop'>.</span> <span class='hs-conid'>Just</span> <span class='hs-varop'>.</span> <span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>CxSingle</span> <span class='hs-varid'>l</span>
<a name="line-168"></a> <span class='hs-conid'>CxTuple</span> <span class='hs-varid'>l</span> <span class='hs-keyword'>as</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>mapM</span> <span class='hs-layout'>(</span><span class='hs-varid'>checkAsst</span> <span class='hs-conid'>True</span><span class='hs-layout'>)</span> <span class='hs-keyword'>as</span> <span class='hs-varop'>>>=</span> <span class='hs-varid'>return</span> <span class='hs-varop'>.</span> <span class='hs-conid'>Just</span> <span class='hs-varop'>.</span> <span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>CxTuple</span> <span class='hs-varid'>l</span>
<a name="line-169"></a> <span class='hs-conid'>CxParen</span> <span class='hs-varid'>l</span> <span class='hs-varid'>cx</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>checkSContext</span> <span class='hs-layout'>(</span><span class='hs-conid'>Just</span> <span class='hs-varid'>cx</span><span class='hs-layout'>)</span> <span class='hs-varop'>>>=</span> <span class='hs-varid'>return</span> <span class='hs-varop'>.</span> <span class='hs-varid'>fmap</span> <span class='hs-layout'>(</span><span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>CxParen</span> <span class='hs-varid'>l</span><span class='hs-layout'>)</span>
<a name="line-170"></a><span class='hs-definition'>checkSContext</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-conid'>Nothing</span>
<a name="line-171"></a>
<a name="line-172"></a><a name="checkContext"></a><span class='hs-comment'>-- Checks ordinary contexts for sigtypes and data type</span>
<a name="line-173"></a><span class='hs-comment'>-- declarations. If FlexibleContexts is enabled then</span>
<a name="line-174"></a><span class='hs-comment'>-- anything goes, otherwise only tyvars OR tyvars</span>
<a name="line-175"></a><span class='hs-comment'>-- applied to types are allowed.</span>
<a name="line-176"></a><span class='hs-definition'>checkContext</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Maybe</span> <span class='hs-layout'>(</span><span class='hs-conid'>PContext</span> <span class='hs-conid'>L</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>P</span> <span class='hs-layout'>(</span><span class='hs-conid'>Maybe</span> <span class='hs-layout'>(</span><span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>Context</span> <span class='hs-conid'>L</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-177"></a><span class='hs-definition'>checkContext</span> <span class='hs-layout'>(</span><span class='hs-conid'>Just</span> <span class='hs-varid'>ctxt</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>ctxt</span> <span class='hs-keyword'>of</span>
<a name="line-178"></a> <span class='hs-conid'>CxEmpty</span> <span class='hs-varid'>l</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>Just</span> <span class='hs-varop'>$</span> <span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>CxEmpty</span> <span class='hs-varid'>l</span>
<a name="line-179"></a> <span class='hs-conid'>CxSingle</span> <span class='hs-varid'>l</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>checkAsst</span> <span class='hs-conid'>False</span> <span class='hs-varid'>a</span> <span class='hs-varop'>>>=</span> <span class='hs-varid'>return</span> <span class='hs-varop'>.</span> <span class='hs-conid'>Just</span> <span class='hs-varop'>.</span> <span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>CxSingle</span> <span class='hs-varid'>l</span>
<a name="line-180"></a> <span class='hs-conid'>CxTuple</span> <span class='hs-varid'>l</span> <span class='hs-keyword'>as</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>mapM</span> <span class='hs-layout'>(</span><span class='hs-varid'>checkAsst</span> <span class='hs-conid'>False</span><span class='hs-layout'>)</span> <span class='hs-keyword'>as</span> <span class='hs-varop'>>>=</span> <span class='hs-varid'>return</span> <span class='hs-varop'>.</span> <span class='hs-conid'>Just</span> <span class='hs-varop'>.</span> <span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>CxTuple</span> <span class='hs-varid'>l</span>
<a name="line-181"></a> <span class='hs-conid'>CxParen</span> <span class='hs-varid'>l</span> <span class='hs-varid'>cx</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>checkSContext</span> <span class='hs-layout'>(</span><span class='hs-conid'>Just</span> <span class='hs-varid'>cx</span><span class='hs-layout'>)</span> <span class='hs-varop'>>>=</span> <span class='hs-varid'>return</span> <span class='hs-varop'>.</span> <span class='hs-varid'>fmap</span> <span class='hs-layout'>(</span><span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>CxParen</span> <span class='hs-varid'>l</span><span class='hs-layout'>)</span>
<a name="line-182"></a><span class='hs-definition'>checkContext</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-conid'>Nothing</span>
<a name="line-183"></a>
<a name="line-184"></a><a name="checkAsst"></a><span class='hs-definition'>checkAsst</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Bool</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>PAsst</span> <span class='hs-conid'>L</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>P</span> <span class='hs-layout'>(</span><span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>Asst</span> <span class='hs-conid'>L</span><span class='hs-layout'>)</span>
<a name="line-185"></a><span class='hs-definition'>checkAsst</span> <span class='hs-varid'>isSimple</span> <span class='hs-varid'>asst</span> <span class='hs-keyglyph'>=</span>
<a name="line-186"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>asst</span> <span class='hs-keyword'>of</span>
<a name="line-187"></a> <span class='hs-conid'>ClassA</span> <span class='hs-varid'>l</span> <span class='hs-varid'>qn</span> <span class='hs-varid'>pts</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-188"></a> <span class='hs-varid'>ts</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>mapM</span> <span class='hs-layout'>(</span><span class='hs-varid'>checkAsstParam</span> <span class='hs-varid'>isSimple</span><span class='hs-layout'>)</span> <span class='hs-varid'>pts</span>
<a name="line-189"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>ClassA</span> <span class='hs-varid'>l</span> <span class='hs-varid'>qn</span> <span class='hs-varid'>ts</span>
<a name="line-190"></a> <span class='hs-conid'>InfixA</span> <span class='hs-varid'>l</span> <span class='hs-varid'>a</span> <span class='hs-varid'>op</span> <span class='hs-varid'>b</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-191"></a> <span class='hs-keyglyph'>[</span><span class='hs-varid'>a</span><span class='hs-layout'>,</span><span class='hs-varid'>b</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>mapM</span> <span class='hs-layout'>(</span><span class='hs-varid'>checkAsstParam</span> <span class='hs-varid'>isSimple</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>a</span><span class='hs-layout'>,</span><span class='hs-varid'>b</span><span class='hs-keyglyph'>]</span>
<a name="line-192"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>InfixA</span> <span class='hs-varid'>l</span> <span class='hs-varid'>a</span> <span class='hs-varid'>op</span> <span class='hs-varid'>b</span>
<a name="line-193"></a> <span class='hs-conid'>IParam</span> <span class='hs-varid'>l</span> <span class='hs-varid'>ipn</span> <span class='hs-varid'>pt</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-194"></a> <span class='hs-varid'>t</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>checkType</span> <span class='hs-varid'>pt</span>
<a name="line-195"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>IParam</span> <span class='hs-varid'>l</span> <span class='hs-varid'>ipn</span> <span class='hs-varid'>t</span>
<a name="line-196"></a> <span class='hs-conid'>EqualP</span> <span class='hs-varid'>l</span> <span class='hs-varid'>pa</span> <span class='hs-varid'>pb</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-197"></a> <span class='hs-varid'>a</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>checkType</span> <span class='hs-varid'>pa</span>
<a name="line-198"></a> <span class='hs-varid'>b</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>checkType</span> <span class='hs-varid'>pb</span>
<a name="line-199"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>EqualP</span> <span class='hs-varid'>l</span> <span class='hs-varid'>a</span> <span class='hs-varid'>b</span>
<a name="line-200"></a>
<a name="line-201"></a><a name="checkAsstParam"></a><span class='hs-definition'>checkAsstParam</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Bool</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>PType</span> <span class='hs-conid'>L</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>P</span> <span class='hs-layout'>(</span><span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>Type</span> <span class='hs-conid'>L</span><span class='hs-layout'>)</span>
<a name="line-202"></a><span class='hs-definition'>checkAsstParam</span> <span class='hs-varid'>isSimple</span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-203"></a> <span class='hs-varid'>exts</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getExtensions</span>
<a name="line-204"></a> <span class='hs-keyword'>if</span> <span class='hs-conid'>FlexibleContexts</span> <span class='hs-varop'>`elem`</span> <span class='hs-varid'>exts</span>
<a name="line-205"></a> <span class='hs-keyword'>then</span> <span class='hs-varid'>checkType</span> <span class='hs-varid'>t</span>
<a name="line-206"></a> <span class='hs-keyword'>else</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>t</span> <span class='hs-keyword'>of</span>
<a name="line-207"></a> <span class='hs-conid'>TyVar</span> <span class='hs-varid'>l</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>TyVar</span> <span class='hs-varid'>l</span> <span class='hs-varid'>n</span>
<a name="line-208"></a> <span class='hs-conid'>TyApp</span> <span class='hs-varid'>l</span> <span class='hs-varid'>pf</span> <span class='hs-varid'>pt</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>not</span> <span class='hs-varid'>isSimple</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-209"></a> <span class='hs-varid'>f</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>checkAsstParam</span> <span class='hs-varid'>isSimple</span> <span class='hs-varid'>pf</span>
<a name="line-210"></a> <span class='hs-varid'>t</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>checkType</span> <span class='hs-varid'>pt</span>
<a name="line-211"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>TyApp</span> <span class='hs-varid'>l</span> <span class='hs-varid'>f</span> <span class='hs-varid'>t</span>
<a name="line-212"></a> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>fail</span> <span class='hs-str'>"Malformed context: FlexibleContexts not enabled"</span>
<a name="line-213"></a>
<a name="line-214"></a><span class='hs-comment'>-----------------------------------------------------------------------------</span>
<a name="line-215"></a><span class='hs-comment'>-- Checking Headers</span>
<a name="line-216"></a>
<a name="line-217"></a>
<a name="line-218"></a><a name="checkDataHeader"></a><span class='hs-definition'>checkDataHeader</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PType</span> <span class='hs-conid'>L</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>P</span> <span class='hs-layout'>(</span><span class='hs-conid'>Maybe</span> <span class='hs-layout'>(</span><span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>Context</span> <span class='hs-conid'>L</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-conid'>DeclHead</span> <span class='hs-conid'>L</span><span class='hs-layout'>)</span>
<a name="line-219"></a><span class='hs-definition'>checkDataHeader</span> <span class='hs-layout'>(</span><span class='hs-conid'>TyForall</span> <span class='hs-keyword'>_</span> <span class='hs-conid'>Nothing</span> <span class='hs-varid'>cs</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-220"></a> <span class='hs-varid'>dh</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>checkSimple</span> <span class='hs-str'>"data/newtype"</span> <span class='hs-varid'>t</span> <span class='hs-conid'>[]</span>
<a name="line-221"></a> <span class='hs-varid'>cs</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>checkContext</span> <span class='hs-varid'>cs</span>
<a name="line-222"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>cs</span><span class='hs-layout'>,</span><span class='hs-varid'>dh</span><span class='hs-layout'>)</span>
<a name="line-223"></a><span class='hs-definition'>checkDataHeader</span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-224"></a> <span class='hs-varid'>dh</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>checkSimple</span> <span class='hs-str'>"data/newtype"</span> <span class='hs-varid'>t</span> <span class='hs-conid'>[]</span>
<a name="line-225"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>Nothing</span><span class='hs-layout'>,</span><span class='hs-varid'>dh</span><span class='hs-layout'>)</span>
<a name="line-226"></a>
<a name="line-227"></a><a name="checkClassHeader"></a><span class='hs-definition'>checkClassHeader</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PType</span> <span class='hs-conid'>L</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>P</span> <span class='hs-layout'>(</span><span class='hs-conid'>Maybe</span> <span class='hs-layout'>(</span><span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>Context</span> <span class='hs-conid'>L</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-conid'>DeclHead</span> <span class='hs-conid'>L</span><span class='hs-layout'>)</span>
<a name="line-228"></a><span class='hs-definition'>checkClassHeader</span> <span class='hs-layout'>(</span><span class='hs-conid'>TyForall</span> <span class='hs-keyword'>_</span> <span class='hs-conid'>Nothing</span> <span class='hs-varid'>cs</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-229"></a> <span class='hs-varid'>dh</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>checkSimple</span> <span class='hs-str'>"class"</span> <span class='hs-varid'>t</span> <span class='hs-conid'>[]</span>
<a name="line-230"></a> <span class='hs-varid'>cs</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>checkSContext</span> <span class='hs-varid'>cs</span>
<a name="line-231"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>cs</span><span class='hs-layout'>,</span><span class='hs-varid'>dh</span><span class='hs-layout'>)</span>
<a name="line-232"></a><span class='hs-definition'>checkClassHeader</span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-233"></a> <span class='hs-varid'>dh</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>checkSimple</span> <span class='hs-str'>"class"</span> <span class='hs-varid'>t</span> <span class='hs-conid'>[]</span>
<a name="line-234"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>Nothing</span><span class='hs-layout'>,</span><span class='hs-varid'>dh</span><span class='hs-layout'>)</span>
<a name="line-235"></a>
<a name="line-236"></a><a name="checkSimple"></a><span class='hs-definition'>checkSimple</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>PType</span> <span class='hs-conid'>L</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>TyVarBind</span> <span class='hs-conid'>L</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>P</span> <span class='hs-layout'>(</span><span class='hs-conid'>DeclHead</span> <span class='hs-conid'>L</span><span class='hs-layout'>)</span>
<a name="line-237"></a><span class='hs-definition'>checkSimple</span> <span class='hs-varid'>kw</span> <span class='hs-layout'>(</span><span class='hs-conid'>TyApp</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>l</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span> <span class='hs-varid'>xs</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>isTyVarBind</span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>checkSimple</span> <span class='hs-varid'>kw</span> <span class='hs-varid'>l</span> <span class='hs-layout'>(</span><span class='hs-varid'>toTyVarBind</span> <span class='hs-varid'>t</span> <span class='hs-conop'>:</span> <span class='hs-varid'>xs</span><span class='hs-layout'>)</span>
<a name="line-238"></a><span class='hs-definition'>checkSimple</span> <span class='hs-keyword'>_</span> <span class='hs-layout'>(</span><span class='hs-conid'>TyInfix</span> <span class='hs-varid'>l</span> <span class='hs-varid'>t1</span> <span class='hs-layout'>(</span><span class='hs-conid'>UnQual</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span> <span class='hs-varid'>t2</span><span class='hs-layout'>)</span> <span class='hs-conid'>[]</span>
<a name="line-239"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>isTyVarBind</span> <span class='hs-varid'>t1</span> <span class='hs-varop'>&&</span> <span class='hs-varid'>isTyVarBind</span> <span class='hs-varid'>t2</span> <span class='hs-keyglyph'>=</span>
<a name="line-240"></a> <span class='hs-varid'>checkEnabled</span> <span class='hs-conid'>TypeOperators</span> <span class='hs-varop'>>></span> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>DHInfix</span> <span class='hs-varid'>l</span> <span class='hs-layout'>(</span><span class='hs-varid'>toTyVarBind</span> <span class='hs-varid'>t1</span><span class='hs-layout'>)</span> <span class='hs-varid'>t</span> <span class='hs-layout'>(</span><span class='hs-varid'>toTyVarBind</span> <span class='hs-varid'>t2</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-241"></a><span class='hs-definition'>checkSimple</span> <span class='hs-sel'>_kw</span> <span class='hs-layout'>(</span><span class='hs-conid'>TyCon</span> <span class='hs-varid'>l</span> <span class='hs-layout'>(</span><span class='hs-conid'>UnQual</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-varid'>xs</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-242"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>t</span> <span class='hs-keyword'>of</span>
<a name="line-243"></a> <span class='hs-conid'>Symbol</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>checkEnabled</span> <span class='hs-conid'>TypeOperators</span>
<a name="line-244"></a> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-conid'>()</span>
<a name="line-245"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>DHead</span> <span class='hs-varid'>l</span> <span class='hs-varid'>t</span> <span class='hs-varid'>xs</span><span class='hs-layout'>)</span>
<a name="line-246"></a><span class='hs-definition'>checkSimple</span> <span class='hs-varid'>kw</span> <span class='hs-layout'>(</span><span class='hs-conid'>TyParen</span> <span class='hs-varid'>l</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span> <span class='hs-varid'>xs</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-247"></a> <span class='hs-varid'>dh</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>checkSimple</span> <span class='hs-varid'>kw</span> <span class='hs-varid'>t</span> <span class='hs-varid'>xs</span>
<a name="line-248"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>DHParen</span> <span class='hs-varid'>l</span> <span class='hs-varid'>dh</span><span class='hs-layout'>)</span>
<a name="line-249"></a><span class='hs-definition'>checkSimple</span> <span class='hs-varid'>kw</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fail</span> <span class='hs-layout'>(</span><span class='hs-str'>"Illegal "</span> <span class='hs-varop'>++</span> <span class='hs-varid'>kw</span> <span class='hs-varop'>++</span> <span class='hs-str'>" declaration"</span><span class='hs-layout'>)</span>
<a name="line-250"></a>
<a name="line-251"></a><a name="isTyVarBind"></a><span class='hs-definition'>isTyVarBind</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PType</span> <span class='hs-conid'>L</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Bool</span>
<a name="line-252"></a><span class='hs-definition'>isTyVarBind</span> <span class='hs-layout'>(</span><span class='hs-conid'>TyVar</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>True</span>
<a name="line-253"></a><span class='hs-definition'>isTyVarBind</span> <span class='hs-layout'>(</span><span class='hs-conid'>TyKind</span> <span class='hs-keyword'>_</span> <span class='hs-layout'>(</span><span class='hs-conid'>TyVar</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>True</span>
<a name="line-254"></a><span class='hs-definition'>isTyVarBind</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>False</span>
<a name="line-255"></a>
<a name="line-256"></a><a name="toTyVarBind"></a><span class='hs-definition'>toTyVarBind</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PType</span> <span class='hs-conid'>L</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>TyVarBind</span> <span class='hs-conid'>L</span>
<a name="line-257"></a><span class='hs-definition'>toTyVarBind</span> <span class='hs-layout'>(</span><span class='hs-conid'>TyVar</span> <span class='hs-varid'>l</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>UnkindedVar</span> <span class='hs-varid'>l</span> <span class='hs-varid'>n</span>
<a name="line-258"></a><span class='hs-definition'>toTyVarBind</span> <span class='hs-layout'>(</span><span class='hs-conid'>TyKind</span> <span class='hs-varid'>l</span> <span class='hs-layout'>(</span><span class='hs-conid'>TyVar</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span> <span class='hs-varid'>k</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>KindedVar</span> <span class='hs-varid'>l</span> <span class='hs-varid'>n</span> <span class='hs-varid'>k</span>
<a name="line-259"></a>
<a name="line-260"></a><a name="checkInstHeader"></a><span class='hs-definition'>checkInstHeader</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PType</span> <span class='hs-conid'>L</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>P</span> <span class='hs-layout'>(</span><span class='hs-conid'>Maybe</span> <span class='hs-layout'>(</span><span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>Context</span> <span class='hs-conid'>L</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-conid'>InstHead</span> <span class='hs-conid'>L</span><span class='hs-layout'>)</span>
<a name="line-261"></a><span class='hs-definition'>checkInstHeader</span> <span class='hs-layout'>(</span><span class='hs-conid'>TyForall</span> <span class='hs-keyword'>_</span> <span class='hs-conid'>Nothing</span> <span class='hs-varid'>cs</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-262"></a> <span class='hs-varid'>ih</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>checkInsts</span> <span class='hs-varid'>t</span> <span class='hs-conid'>[]</span>
<a name="line-263"></a> <span class='hs-varid'>cs</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>checkSContext</span> <span class='hs-varid'>cs</span>
<a name="line-264"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>cs</span><span class='hs-layout'>,</span> <span class='hs-varid'>ih</span><span class='hs-layout'>)</span>
<a name="line-265"></a><span class='hs-definition'>checkInstHeader</span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-266"></a> <span class='hs-varid'>ih</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>checkInsts</span> <span class='hs-varid'>t</span> <span class='hs-conid'>[]</span>
<a name="line-267"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>Nothing</span><span class='hs-layout'>,</span> <span class='hs-varid'>ih</span><span class='hs-layout'>)</span>
<a name="line-268"></a>
<a name="line-269"></a>
<a name="line-270"></a><a name="checkInsts"></a><span class='hs-definition'>checkInsts</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PType</span> <span class='hs-conid'>L</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>PType</span> <span class='hs-conid'>L</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>P</span> <span class='hs-layout'>(</span><span class='hs-conid'>InstHead</span> <span class='hs-conid'>L</span><span class='hs-layout'>)</span>
<a name="line-271"></a><span class='hs-definition'>checkInsts</span> <span class='hs-layout'>(</span><span class='hs-conid'>TyApp</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>l</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span> <span class='hs-varid'>ts</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>checkInsts</span> <span class='hs-varid'>l</span> <span class='hs-layout'>(</span><span class='hs-varid'>t</span><span class='hs-conop'>:</span><span class='hs-varid'>ts</span><span class='hs-layout'>)</span>
<a name="line-272"></a><span class='hs-definition'>checkInsts</span> <span class='hs-layout'>(</span><span class='hs-conid'>TyCon</span> <span class='hs-varid'>l</span> <span class='hs-varid'>c</span><span class='hs-layout'>)</span> <span class='hs-varid'>ts</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-273"></a> <span class='hs-varid'>when</span> <span class='hs-layout'>(</span><span class='hs-varid'>isSymbol</span> <span class='hs-varid'>c</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-varid'>checkEnabled</span> <span class='hs-conid'>TypeOperators</span>
<a name="line-274"></a> <span class='hs-varid'>ts</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>checkTypes</span> <span class='hs-varid'>ts</span>
<a name="line-275"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>IHead</span> <span class='hs-varid'>l</span> <span class='hs-varid'>c</span> <span class='hs-varid'>ts</span>
<a name="line-276"></a><span class='hs-definition'>checkInsts</span> <span class='hs-layout'>(</span><span class='hs-conid'>TyInfix</span> <span class='hs-varid'>l</span> <span class='hs-varid'>a</span> <span class='hs-varid'>op</span> <span class='hs-varid'>b</span><span class='hs-layout'>)</span> <span class='hs-conid'>[]</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-277"></a> <span class='hs-varid'>checkEnabled</span> <span class='hs-conid'>TypeOperators</span>
<a name="line-278"></a> <span class='hs-keyglyph'>[</span><span class='hs-varid'>ta</span><span class='hs-layout'>,</span><span class='hs-varid'>tb</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>checkTypes</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>a</span><span class='hs-layout'>,</span><span class='hs-varid'>b</span><span class='hs-keyglyph'>]</span>
<a name="line-279"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>IHInfix</span> <span class='hs-varid'>l</span> <span class='hs-varid'>ta</span> <span class='hs-varid'>op</span> <span class='hs-varid'>tb</span>
<a name="line-280"></a><span class='hs-definition'>checkInsts</span> <span class='hs-layout'>(</span><span class='hs-conid'>TyParen</span> <span class='hs-varid'>l</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span> <span class='hs-conid'>[]</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>checkInsts</span> <span class='hs-varid'>t</span> <span class='hs-conid'>[]</span> <span class='hs-varop'>>>=</span> <span class='hs-varid'>return</span> <span class='hs-varop'>.</span> <span class='hs-conid'>IHParen</span> <span class='hs-varid'>l</span>
<a name="line-281"></a><span class='hs-definition'>checkInsts</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fail</span> <span class='hs-str'>"Illegal instance declaration"</span>
<a name="line-282"></a>
<a name="line-283"></a><a name="checkDeriving"></a><span class='hs-definition'>checkDeriving</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>PType</span> <span class='hs-conid'>L</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>P</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>InstHead</span> <span class='hs-conid'>L</span><span class='hs-keyglyph'>]</span>
<a name="line-284"></a><span class='hs-definition'>checkDeriving</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>mapM</span> <span class='hs-layout'>(</span><span class='hs-varid'>flip</span> <span class='hs-varid'>checkInsts</span> <span class='hs-conid'>[]</span><span class='hs-layout'>)</span>
<a name="line-285"></a>
<a name="line-286"></a><span class='hs-comment'>-----------------------------------------------------------------------------</span>
<a name="line-287"></a><span class='hs-comment'>-- Checking Patterns.</span>
<a name="line-288"></a>
<a name="line-289"></a><span class='hs-comment'>-- We parse patterns as expressions and check for valid patterns below,</span>
<a name="line-290"></a><span class='hs-comment'>-- converting the expression into a pattern at the same time.</span>
<a name="line-291"></a>
<a name="line-292"></a><a name="checkPattern"></a><span class='hs-definition'>checkPattern</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PExp</span> <span class='hs-conid'>L</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>P</span> <span class='hs-layout'>(</span><span class='hs-conid'>Pat</span> <span class='hs-conid'>L</span><span class='hs-layout'>)</span>
<a name="line-293"></a><span class='hs-definition'>checkPattern</span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>checkPat</span> <span class='hs-varid'>e</span> <span class='hs-conid'>[]</span>
<a name="line-294"></a>
<a name="line-295"></a><a name="checkPat"></a><span class='hs-definition'>checkPat</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PExp</span> <span class='hs-conid'>L</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Pat</span> <span class='hs-conid'>L</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>P</span> <span class='hs-layout'>(</span><span class='hs-conid'>Pat</span> <span class='hs-conid'>L</span><span class='hs-layout'>)</span>
<a name="line-296"></a><span class='hs-definition'>checkPat</span> <span class='hs-layout'>(</span><span class='hs-conid'>Con</span> <span class='hs-varid'>l</span> <span class='hs-varid'>c</span><span class='hs-layout'>)</span> <span class='hs-varid'>args</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>PApp</span> <span class='hs-varid'>l</span> <span class='hs-varid'>c</span> <span class='hs-varid'>args</span><span class='hs-layout'>)</span>
<a name="line-297"></a><span class='hs-definition'>checkPat</span> <span class='hs-layout'>(</span><span class='hs-conid'>App</span> <span class='hs-varid'>l</span> <span class='hs-varid'>f</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-varid'>args</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-298"></a> <span class='hs-varid'>x</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>checkPat</span> <span class='hs-varid'>x</span> <span class='hs-conid'>[]</span>
<a name="line-299"></a> <span class='hs-varid'>checkPat</span> <span class='hs-varid'>f</span> <span class='hs-layout'>(</span><span class='hs-varid'>x</span><span class='hs-conop'>:</span><span class='hs-varid'>args</span><span class='hs-layout'>)</span>
<a name="line-300"></a><span class='hs-definition'>checkPat</span> <span class='hs-layout'>(</span><span class='hs-conid'>InfixApp</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>l</span> <span class='hs-varid'>op</span> <span class='hs-varid'>r</span><span class='hs-layout'>)</span> <span class='hs-varid'>args</span>
<a name="line-301"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>op</span> <span class='hs-varop'>=~=</span> <span class='hs-layout'>(</span><span class='hs-conid'>QVarOp</span> <span class='hs-conid'>()</span> <span class='hs-layout'>(</span><span class='hs-conid'>UnQual</span> <span class='hs-conid'>()</span> <span class='hs-layout'>(</span><span class='hs-conid'>Symbol</span> <span class='hs-conid'>()</span> <span class='hs-str'>"!"</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-302"></a> <span class='hs-comment'>-- We must have BangPatterns on</span>
<a name="line-303"></a> <span class='hs-varid'>checkEnabled</span> <span class='hs-conid'>BangPatterns</span>
<a name="line-304"></a> <span class='hs-keyword'>let</span> <span class='hs-layout'>(</span><span class='hs-varid'>e</span><span class='hs-layout'>,</span><span class='hs-varid'>es</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>splitBang</span> <span class='hs-varid'>r</span> <span class='hs-conid'>[]</span>
<a name="line-305"></a> <span class='hs-varid'>ps</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>mapM</span> <span class='hs-varid'>checkPattern</span> <span class='hs-layout'>(</span><span class='hs-conid'>BangPat</span> <span class='hs-layout'>(</span><span class='hs-varid'>ann</span> <span class='hs-varid'>op</span><span class='hs-layout'>)</span> <span class='hs-varid'>e</span><span class='hs-conop'>:</span><span class='hs-varid'>es</span><span class='hs-layout'>)</span>
<a name="line-306"></a> <span class='hs-varid'>checkPat</span> <span class='hs-varid'>l</span> <span class='hs-layout'>(</span><span class='hs-varid'>ps</span><span class='hs-varop'>++</span><span class='hs-varid'>args</span><span class='hs-layout'>)</span>
<a name="line-307"></a><span class='hs-definition'>checkPat</span> <span class='hs-varid'>e</span> <span class='hs-conid'>[]</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>e</span> <span class='hs-keyword'>of</span>
<a name="line-308"></a> <span class='hs-conid'>Var</span> <span class='hs-varid'>l</span> <span class='hs-layout'>(</span><span class='hs-conid'>UnQual</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>PVar</span> <span class='hs-varid'>l</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span>
<a name="line-309"></a> <span class='hs-conid'>Lit</span> <span class='hs-varid'>l</span> <span class='hs-varid'>lit</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>PLit</span> <span class='hs-varid'>l</span> <span class='hs-varid'>lit</span><span class='hs-layout'>)</span>
<a name="line-310"></a> <span class='hs-conid'>InfixApp</span> <span class='hs-varid'>loc</span> <span class='hs-varid'>l</span> <span class='hs-varid'>op</span> <span class='hs-varid'>r</span> <span class='hs-keyglyph'>-></span>
<a name="line-311"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>op</span> <span class='hs-keyword'>of</span>
<a name="line-312"></a> <span class='hs-conid'>QConOp</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>c</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-313"></a> <span class='hs-varid'>l</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>checkPat</span> <span class='hs-varid'>l</span> <span class='hs-conid'>[]</span>
<a name="line-314"></a> <span class='hs-varid'>r</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>checkPat</span> <span class='hs-varid'>r</span> <span class='hs-conid'>[]</span>
<a name="line-315"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>PInfixApp</span> <span class='hs-varid'>loc</span> <span class='hs-varid'>l</span> <span class='hs-varid'>c</span> <span class='hs-varid'>r</span><span class='hs-layout'>)</span>
<a name="line-316"></a> <span class='hs-conid'>QVarOp</span> <span class='hs-varid'>ppos</span> <span class='hs-layout'>(</span><span class='hs-conid'>UnQual</span> <span class='hs-keyword'>_</span> <span class='hs-layout'>(</span><span class='hs-conid'>Symbol</span> <span class='hs-keyword'>_</span> <span class='hs-str'>"+"</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-317"></a> <span class='hs-keyword'>case</span> <span class='hs-layout'>(</span><span class='hs-varid'>l</span><span class='hs-layout'>,</span><span class='hs-varid'>r</span><span class='hs-layout'>)</span> <span class='hs-keyword'>of</span>
<a name="line-318"></a> <span class='hs-layout'>(</span><span class='hs-conid'>Var</span> <span class='hs-keyword'>_</span> <span class='hs-layout'>(</span><span class='hs-conid'>UnQual</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>n</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>Ident</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-conid'>Lit</span> <span class='hs-keyword'>_</span> <span class='hs-layout'>(</span><span class='hs-conid'>Int</span> <span class='hs-varid'>kpos</span> <span class='hs-varid'>k</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-319"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>pp</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>srcInfoSpan</span> <span class='hs-varid'>ppos</span>
<a name="line-320"></a> <span class='hs-varid'>kp</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>srcInfoSpan</span> <span class='hs-varid'>kpos</span>
<a name="line-321"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>PNPlusK</span> <span class='hs-layout'>(</span><span class='hs-varid'>loc</span> <span class='hs-varop'><**</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>pp</span><span class='hs-layout'>,</span><span class='hs-varid'>kp</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <span class='hs-varid'>n</span> <span class='hs-varid'>k</span><span class='hs-layout'>)</span>
<a name="line-322"></a> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>patFail</span> <span class='hs-str'>""</span>
<a name="line-323"></a> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>patFail</span> <span class='hs-str'>""</span>
<a name="line-324"></a> <span class='hs-conid'>TupleSection</span> <span class='hs-varid'>l</span> <span class='hs-varid'>mes</span> <span class='hs-keyglyph'>-></span>
<a name="line-325"></a> <span class='hs-keyword'>if</span> <span class='hs-varid'>not</span> <span class='hs-layout'>(</span><span class='hs-varid'>any</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-varop'>==</span><span class='hs-layout'>)</span> <span class='hs-conid'>Nothing</span><span class='hs-layout'>)</span> <span class='hs-varid'>mes</span><span class='hs-layout'>)</span>
<a name="line-326"></a> <span class='hs-keyword'>then</span> <span class='hs-keyword'>do</span> <span class='hs-varid'>ps</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>mapM</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>e</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>checkPat</span> <span class='hs-varid'>e</span> <span class='hs-conid'>[]</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>map</span> <span class='hs-varid'>fromJust</span> <span class='hs-varid'>mes</span><span class='hs-layout'>)</span>
<a name="line-327"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>PTuple</span> <span class='hs-varid'>l</span> <span class='hs-varid'>ps</span><span class='hs-layout'>)</span>
<a name="line-328"></a> <span class='hs-keyword'>else</span> <span class='hs-varid'>fail</span> <span class='hs-str'>"Illegal tuple section in pattern"</span>
<a name="line-329"></a>
<a name="line-330"></a> <span class='hs-conid'>List</span> <span class='hs-varid'>l</span> <span class='hs-varid'>es</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-331"></a> <span class='hs-varid'>ps</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>mapM</span> <span class='hs-varid'>checkRPattern</span> <span class='hs-varid'>es</span>
<a name="line-332"></a> <span class='hs-keyword'>if</span> <span class='hs-varid'>all</span> <span class='hs-varid'>isStdPat</span> <span class='hs-varid'>ps</span>
<a name="line-333"></a> <span class='hs-keyword'>then</span> <span class='hs-varid'>return</span> <span class='hs-varop'>.</span> <span class='hs-conid'>PList</span> <span class='hs-varid'>l</span> <span class='hs-varop'>$</span> <span class='hs-varid'>map</span> <span class='hs-varid'>stripRP</span> <span class='hs-varid'>ps</span>
<a name="line-334"></a> <span class='hs-comment'>-- we don't allow truly regular patterns unless the extension is enabled</span>
<a name="line-335"></a> <span class='hs-keyword'>else</span> <span class='hs-varid'>checkEnabled</span> <span class='hs-conid'>RegularPatterns</span> <span class='hs-varop'>>></span> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>PRPat</span> <span class='hs-varid'>l</span> <span class='hs-varop'>$</span> <span class='hs-varid'>map</span> <span class='hs-varid'>fixRPOpPrec</span> <span class='hs-varid'>ps</span><span class='hs-layout'>)</span>
<a name="line-336"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>isStdPat</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>RPat</span> <span class='hs-conid'>L</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Bool</span>
<a name="line-337"></a> <span class='hs-varid'>isStdPat</span> <span class='hs-layout'>(</span><span class='hs-conid'>RPPat</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>True</span>
<a name="line-338"></a> <span class='hs-varid'>isStdPat</span> <span class='hs-layout'>(</span><span class='hs-conid'>RPAs</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>isStdPat</span> <span class='hs-varid'>p</span>
<a name="line-339"></a> <span class='hs-varid'>isStdPat</span> <span class='hs-layout'>(</span><span class='hs-conid'>RPParen</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>isStdPat</span> <span class='hs-varid'>p</span>
<a name="line-340"></a> <span class='hs-varid'>isStdPat</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>False</span>
<a name="line-341"></a> <span class='hs-varid'>stripRP</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>RPat</span> <span class='hs-conid'>L</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Pat</span> <span class='hs-conid'>L</span>
<a name="line-342"></a> <span class='hs-varid'>stripRP</span> <span class='hs-layout'>(</span><span class='hs-conid'>RPPat</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>p</span>
<a name="line-343"></a> <span class='hs-varid'>stripRP</span> <span class='hs-layout'>(</span><span class='hs-conid'>RPAs</span> <span class='hs-varid'>l</span> <span class='hs-varid'>n</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>PAsPat</span> <span class='hs-varid'>l</span> <span class='hs-varid'>n</span> <span class='hs-layout'>(</span><span class='hs-varid'>stripRP</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span>
<a name="line-344"></a> <span class='hs-varid'>stripRP</span> <span class='hs-layout'>(</span><span class='hs-conid'>RPParen</span> <span class='hs-varid'>l</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>PParen</span> <span class='hs-varid'>l</span> <span class='hs-layout'>(</span><span class='hs-varid'>stripRP</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span>
<a name="line-345"></a> <span class='hs-varid'>stripRP</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>error</span> <span class='hs-str'>"cannot strip RP wrapper if not all patterns are base"</span>
<a name="line-346"></a>
<a name="line-347"></a> <span class='hs-conid'>Paren</span> <span class='hs-varid'>l</span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-348"></a> <span class='hs-varid'>p</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>checkPat</span> <span class='hs-varid'>e</span> <span class='hs-conid'>[]</span>
<a name="line-349"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>PParen</span> <span class='hs-varid'>l</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span>
<a name="line-350"></a> <span class='hs-conid'>AsPat</span> <span class='hs-varid'>l</span> <span class='hs-varid'>n</span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-351"></a> <span class='hs-varid'>p</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>checkPat</span> <span class='hs-varid'>e</span> <span class='hs-conid'>[]</span>
<a name="line-352"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>PAsPat</span> <span class='hs-varid'>l</span> <span class='hs-varid'>n</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span>
<a name="line-353"></a> <span class='hs-conid'>WildCard</span> <span class='hs-varid'>l</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>PWildCard</span> <span class='hs-varid'>l</span><span class='hs-layout'>)</span>
<a name="line-354"></a> <span class='hs-conid'>IrrPat</span> <span class='hs-varid'>l</span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-355"></a> <span class='hs-varid'>p</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>checkPat</span> <span class='hs-varid'>e</span> <span class='hs-conid'>[]</span>
<a name="line-356"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>PIrrPat</span> <span class='hs-varid'>l</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span>
<a name="line-357"></a> <span class='hs-conid'>ViewPat</span> <span class='hs-varid'>l</span> <span class='hs-varid'>e</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-358"></a> <span class='hs-varid'>e</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>checkExpr</span> <span class='hs-varid'>e</span>
<a name="line-359"></a> <span class='hs-varid'>p</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>checkPat</span> <span class='hs-varid'>p</span> <span class='hs-conid'>[]</span>
<a name="line-360"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>PViewPat</span> <span class='hs-varid'>l</span> <span class='hs-varid'>e</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span>
<a name="line-361"></a> <span class='hs-conid'>RecConstr</span> <span class='hs-varid'>l</span> <span class='hs-varid'>c</span> <span class='hs-varid'>fs</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-362"></a> <span class='hs-varid'>fs</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>mapM</span> <span class='hs-varid'>checkPatField</span> <span class='hs-varid'>fs</span>
<a name="line-363"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>PRec</span> <span class='hs-varid'>l</span> <span class='hs-varid'>c</span> <span class='hs-varid'>fs</span><span class='hs-layout'>)</span>
<a name="line-364"></a> <span class='hs-conid'>NegApp</span> <span class='hs-varid'>l1</span> <span class='hs-layout'>(</span><span class='hs-conid'>Lit</span> <span class='hs-varid'>l2</span> <span class='hs-varid'>lit</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>PNeg</span> <span class='hs-varid'>l1</span> <span class='hs-layout'>(</span><span class='hs-conid'>PLit</span> <span class='hs-varid'>l2</span> <span class='hs-varid'>lit</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-365"></a> <span class='hs-conid'>ExpTypeSig</span> <span class='hs-varid'>l</span> <span class='hs-varid'>e</span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-366"></a> <span class='hs-comment'>-- patterns cannot have signatures unless ScopedTypeVariables is enabled.</span>
<a name="line-367"></a> <span class='hs-varid'>checkEnabled</span> <span class='hs-conid'>ScopedTypeVariables</span>
<a name="line-368"></a> <span class='hs-varid'>p</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>checkPat</span> <span class='hs-varid'>e</span> <span class='hs-conid'>[]</span>
<a name="line-369"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>PatTypeSig</span> <span class='hs-varid'>l</span> <span class='hs-varid'>p</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span>
<a name="line-370"></a>
<a name="line-371"></a> <span class='hs-comment'>-- Hsx</span>
<a name="line-372"></a> <span class='hs-conid'>XTag</span> <span class='hs-varid'>l</span> <span class='hs-varid'>n</span> <span class='hs-varid'>attrs</span> <span class='hs-varid'>mattr</span> <span class='hs-varid'>cs</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-373"></a> <span class='hs-varid'>pattrs</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>mapM</span> <span class='hs-varid'>checkPAttr</span> <span class='hs-varid'>attrs</span>
<a name="line-374"></a> <span class='hs-varid'>pcs</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>mapM</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>c</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>checkPat</span> <span class='hs-varid'>c</span> <span class='hs-conid'>[]</span><span class='hs-layout'>)</span> <span class='hs-varid'>cs</span>
<a name="line-375"></a> <span class='hs-varid'>mpattr</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>maybe</span> <span class='hs-layout'>(</span><span class='hs-varid'>return</span> <span class='hs-conid'>Nothing</span><span class='hs-layout'>)</span>
<a name="line-376"></a> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>e</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>checkPat</span> <span class='hs-varid'>e</span> <span class='hs-conid'>[]</span>
<a name="line-377"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>Just</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span>
<a name="line-378"></a> <span class='hs-varid'>mattr</span>
<a name="line-379"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>cps</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>mkChildrenPat</span> <span class='hs-varid'>pcs</span>
<a name="line-380"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>PXTag</span> <span class='hs-varid'>l</span> <span class='hs-varid'>n</span> <span class='hs-varid'>pattrs</span> <span class='hs-varid'>mpattr</span> <span class='hs-varid'>cps</span>
<a name="line-381"></a> <span class='hs-conid'>XETag</span> <span class='hs-varid'>l</span> <span class='hs-varid'>n</span> <span class='hs-varid'>attrs</span> <span class='hs-varid'>mattr</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-382"></a> <span class='hs-varid'>pattrs</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>mapM</span> <span class='hs-varid'>checkPAttr</span> <span class='hs-varid'>attrs</span>
<a name="line-383"></a> <span class='hs-varid'>mpattr</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>maybe</span> <span class='hs-layout'>(</span><span class='hs-varid'>return</span> <span class='hs-conid'>Nothing</span><span class='hs-layout'>)</span>
<a name="line-384"></a> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>e</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>checkPat</span> <span class='hs-varid'>e</span> <span class='hs-conid'>[]</span>
<a name="line-385"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>Just</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span>
<a name="line-386"></a> <span class='hs-varid'>mattr</span>
<a name="line-387"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>PXETag</span> <span class='hs-varid'>l</span> <span class='hs-varid'>n</span> <span class='hs-varid'>pattrs</span> <span class='hs-varid'>mpattr</span>
<a name="line-388"></a> <span class='hs-conid'>XPcdata</span> <span class='hs-varid'>l</span> <span class='hs-varid'>pcdata</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>PXPcdata</span> <span class='hs-varid'>l</span> <span class='hs-varid'>pcdata</span>
<a name="line-389"></a> <span class='hs-conid'>XExpTag</span> <span class='hs-varid'>l</span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-390"></a> <span class='hs-varid'>p</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>checkPat</span> <span class='hs-varid'>e</span> <span class='hs-conid'>[]</span>
<a name="line-391"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>PXPatTag</span> <span class='hs-varid'>l</span> <span class='hs-varid'>p</span>
<a name="line-392"></a> <span class='hs-conid'>XRPats</span> <span class='hs-varid'>l</span> <span class='hs-varid'>es</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-393"></a> <span class='hs-varid'>rps</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>mapM</span> <span class='hs-varid'>checkRPattern</span> <span class='hs-varid'>es</span>
<a name="line-394"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>PXRPats</span> <span class='hs-varid'>l</span> <span class='hs-varop'>$</span> <span class='hs-varid'>map</span> <span class='hs-varid'>fixRPOpPrec</span> <span class='hs-varid'>rps</span><span class='hs-layout'>)</span>
<a name="line-395"></a>
<a name="line-396"></a> <span class='hs-comment'>-- Generics</span>
<a name="line-397"></a> <span class='hs-conid'>ExplTypeArg</span> <span class='hs-varid'>l</span> <span class='hs-varid'>qn</span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>PExplTypeArg</span> <span class='hs-varid'>l</span> <span class='hs-varid'>qn</span> <span class='hs-varid'>t</span>
<a name="line-398"></a>
<a name="line-399"></a> <span class='hs-comment'>-- QuasiQuotation</span>
<a name="line-400"></a> <span class='hs-conid'>QuasiQuote</span> <span class='hs-varid'>l</span> <span class='hs-varid'>n</span> <span class='hs-varid'>q</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>PQuasiQuote</span> <span class='hs-varid'>l</span> <span class='hs-varid'>n</span> <span class='hs-varid'>q</span>
<a name="line-401"></a>
<a name="line-402"></a> <span class='hs-comment'>-- BangPatterns</span>
<a name="line-403"></a> <span class='hs-conid'>BangPat</span> <span class='hs-varid'>l</span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-404"></a> <span class='hs-varid'>p</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>checkPat</span> <span class='hs-varid'>e</span> <span class='hs-conid'>[]</span>
<a name="line-405"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>PBangPat</span> <span class='hs-varid'>l</span> <span class='hs-varid'>p</span>
<a name="line-406"></a>
<a name="line-407"></a> <span class='hs-conid'>PreOp</span> <span class='hs-varid'>l</span> <span class='hs-layout'>(</span><span class='hs-conid'>QVarOp</span> <span class='hs-keyword'>_</span> <span class='hs-layout'>(</span><span class='hs-conid'>UnQual</span> <span class='hs-keyword'>_</span> <span class='hs-layout'>(</span><span class='hs-conid'>Symbol</span> <span class='hs-keyword'>_</span> <span class='hs-str'>"!"</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-408"></a> <span class='hs-varid'>checkEnabled</span> <span class='hs-conid'>BangPatterns</span>
<a name="line-409"></a> <span class='hs-varid'>p</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>checkPat</span> <span class='hs-varid'>e</span> <span class='hs-conid'>[]</span>
<a name="line-410"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>PBangPat</span> <span class='hs-varid'>l</span> <span class='hs-varid'>p</span>
<a name="line-411"></a>
<a name="line-412"></a> <span class='hs-varid'>e</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>patFail</span> <span class='hs-varop'>$</span> <span class='hs-varid'>prettyPrint</span> <span class='hs-varid'>e</span>
<a name="line-413"></a>
<a name="line-414"></a><span class='hs-definition'>checkPat</span> <span class='hs-varid'>e</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>patFail</span> <span class='hs-varop'>$</span> <span class='hs-varid'>prettyPrint</span> <span class='hs-varid'>e</span>
<a name="line-415"></a>
<a name="line-416"></a><a name="splitBang"></a><span class='hs-definition'>splitBang</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PExp</span> <span class='hs-conid'>L</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>PExp</span> <span class='hs-conid'>L</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>PExp</span> <span class='hs-conid'>L</span><span class='hs-layout'>,</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>PExp</span> <span class='hs-conid'>L</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span>
<a name="line-417"></a><span class='hs-definition'>splitBang</span> <span class='hs-layout'>(</span><span class='hs-conid'>App</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>f</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-varid'>es</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>splitBang</span> <span class='hs-varid'>f</span> <span class='hs-layout'>(</span><span class='hs-varid'>x</span><span class='hs-conop'>:</span><span class='hs-varid'>es</span><span class='hs-layout'>)</span>
<a name="line-418"></a><span class='hs-definition'>splitBang</span> <span class='hs-varid'>e</span> <span class='hs-varid'>es</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>e</span><span class='hs-layout'>,</span> <span class='hs-varid'>es</span><span class='hs-layout'>)</span>
<a name="line-419"></a>
<a name="line-420"></a><a name="checkPatField"></a><span class='hs-definition'>checkPatField</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PFieldUpdate</span> <span class='hs-conid'>L</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>P</span> <span class='hs-layout'>(</span><span class='hs-conid'>PatField</span> <span class='hs-conid'>L</span><span class='hs-layout'>)</span>
<a name="line-421"></a><span class='hs-definition'>checkPatField</span> <span class='hs-layout'>(</span><span class='hs-conid'>FieldUpdate</span> <span class='hs-varid'>l</span> <span class='hs-varid'>n</span> <span class='hs-varid'>e</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-422"></a> <span class='hs-varid'>p</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>checkPat</span> <span class='hs-varid'>e</span> <span class='hs-conid'>[]</span>
<a name="line-423"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>PFieldPat</span> <span class='hs-varid'>l</span> <span class='hs-varid'>n</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span>
<a name="line-424"></a><span class='hs-definition'>checkPatField</span> <span class='hs-layout'>(</span><span class='hs-conid'>FieldPun</span> <span class='hs-varid'>l</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>PFieldPun</span> <span class='hs-varid'>l</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span>
<a name="line-425"></a><span class='hs-definition'>checkPatField</span> <span class='hs-layout'>(</span><span class='hs-conid'>FieldWildcard</span> <span class='hs-varid'>l</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>PFieldWildcard</span> <span class='hs-varid'>l</span><span class='hs-layout'>)</span>
<a name="line-426"></a>
<a name="line-427"></a><a name="checkPAttr"></a><span class='hs-definition'>checkPAttr</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ParseXAttr</span> <span class='hs-conid'>L</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>P</span> <span class='hs-layout'>(</span><span class='hs-conid'>PXAttr</span> <span class='hs-conid'>L</span><span class='hs-layout'>)</span>
<a name="line-428"></a><span class='hs-definition'>checkPAttr</span> <span class='hs-layout'>(</span><span class='hs-conid'>XAttr</span> <span class='hs-varid'>l</span> <span class='hs-varid'>n</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>checkPat</span> <span class='hs-varid'>v</span> <span class='hs-conid'>[]</span>
<a name="line-429"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>PXAttr</span> <span class='hs-varid'>l</span> <span class='hs-varid'>n</span> <span class='hs-varid'>p</span>
<a name="line-430"></a>
<a name="line-431"></a><a name="patFail"></a><span class='hs-definition'>patFail</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>P</span> <span class='hs-varid'>a</span>
<a name="line-432"></a><span class='hs-definition'>patFail</span> <span class='hs-varid'>s</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fail</span> <span class='hs-varop'>$</span> <span class='hs-str'>"Parse error in pattern: "</span> <span class='hs-varop'>++</span> <span class='hs-varid'>s</span>
<a name="line-433"></a>
<a name="line-434"></a><a name="checkRPattern"></a><span class='hs-definition'>checkRPattern</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PExp</span> <span class='hs-conid'>L</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>P</span> <span class='hs-layout'>(</span><span class='hs-conid'>RPat</span> <span class='hs-conid'>L</span><span class='hs-layout'>)</span>
<a name="line-435"></a><span class='hs-definition'>checkRPattern</span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>e</span> <span class='hs-keyword'>of</span>
<a name="line-436"></a> <span class='hs-conid'>SeqRP</span> <span class='hs-varid'>l</span> <span class='hs-varid'>es</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-437"></a> <span class='hs-varid'>rps</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>mapM</span> <span class='hs-varid'>checkRPattern</span> <span class='hs-varid'>es</span>
<a name="line-438"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>RPSeq</span> <span class='hs-varid'>l</span> <span class='hs-varid'>rps</span>
<a name="line-439"></a> <span class='hs-conid'>PostOp</span> <span class='hs-varid'>l</span> <span class='hs-varid'>e</span> <span class='hs-varid'>op</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-440"></a> <span class='hs-varid'>rpop</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>checkRPatOp</span> <span class='hs-varid'>op</span>
<a name="line-441"></a> <span class='hs-varid'>rp</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>checkRPattern</span> <span class='hs-varid'>e</span>
<a name="line-442"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>RPOp</span> <span class='hs-varid'>l</span> <span class='hs-varid'>rp</span> <span class='hs-varid'>rpop</span>
<a name="line-443"></a> <span class='hs-conid'>GuardRP</span> <span class='hs-varid'>l</span> <span class='hs-varid'>e</span> <span class='hs-varid'>gs</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-444"></a> <span class='hs-varid'>rp</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>checkPattern</span> <span class='hs-varid'>e</span>
<a name="line-445"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>RPGuard</span> <span class='hs-varid'>l</span> <span class='hs-varid'>rp</span> <span class='hs-varid'>gs</span>
<a name="line-446"></a> <span class='hs-conid'>EitherRP</span> <span class='hs-varid'>l</span> <span class='hs-varid'>e1</span> <span class='hs-varid'>e2</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-447"></a> <span class='hs-varid'>rp1</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>checkRPattern</span> <span class='hs-varid'>e1</span>
<a name="line-448"></a> <span class='hs-varid'>rp2</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>checkRPattern</span> <span class='hs-varid'>e2</span>
<a name="line-449"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>RPEither</span> <span class='hs-varid'>l</span> <span class='hs-varid'>rp1</span> <span class='hs-varid'>rp2</span>
<a name="line-450"></a> <span class='hs-conid'>CAsRP</span> <span class='hs-varid'>l</span> <span class='hs-varid'>n</span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-451"></a> <span class='hs-varid'>rp</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>checkRPattern</span> <span class='hs-varid'>e</span>
<a name="line-452"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>RPCAs</span> <span class='hs-varid'>l</span> <span class='hs-varid'>n</span> <span class='hs-varid'>rp</span>
<a name="line-453"></a> <span class='hs-conid'>AsPat</span> <span class='hs-varid'>l</span> <span class='hs-varid'>n</span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-454"></a> <span class='hs-varid'>rp</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>checkRPattern</span> <span class='hs-varid'>e</span>
<a name="line-455"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>RPAs</span> <span class='hs-varid'>l</span> <span class='hs-varid'>n</span> <span class='hs-varid'>rp</span>
<a name="line-456"></a> <span class='hs-conid'>Paren</span> <span class='hs-varid'>l</span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-457"></a> <span class='hs-varid'>rp</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>checkRPattern</span> <span class='hs-varid'>e</span>
<a name="line-458"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>RPParen</span> <span class='hs-varid'>l</span> <span class='hs-varid'>rp</span>
<a name="line-459"></a> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-460"></a> <span class='hs-varid'>p</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>checkPattern</span> <span class='hs-varid'>e</span>
<a name="line-461"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>RPPat</span> <span class='hs-layout'>(</span><span class='hs-varid'>ann</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span> <span class='hs-varid'>p</span>
<a name="line-462"></a>
<a name="line-463"></a><a name="checkRPatOp"></a><span class='hs-definition'>checkRPatOp</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>QOp</span> <span class='hs-conid'>L</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>P</span> <span class='hs-layout'>(</span><span class='hs-conid'>RPatOp</span> <span class='hs-conid'>L</span><span class='hs-layout'>)</span>
<a name="line-464"></a><span class='hs-definition'>checkRPatOp</span> <span class='hs-varid'>o</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>QVarOp</span> <span class='hs-varid'>l</span> <span class='hs-layout'>(</span><span class='hs-conid'>UnQual</span> <span class='hs-keyword'>_</span> <span class='hs-layout'>(</span><span class='hs-conid'>Symbol</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>sym</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-465"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>sym</span> <span class='hs-keyword'>of</span>
<a name="line-466"></a> <span class='hs-str'>"*"</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>RPStar</span> <span class='hs-varid'>l</span>
<a name="line-467"></a> <span class='hs-str'>"*!"</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>RPStarG</span> <span class='hs-varid'>l</span>
<a name="line-468"></a> <span class='hs-str'>"+"</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>RPPlus</span> <span class='hs-varid'>l</span>
<a name="line-469"></a> <span class='hs-str'>"+!"</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>RPPlusG</span> <span class='hs-varid'>l</span>
<a name="line-470"></a> <span class='hs-str'>"?"</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>RPOpt</span> <span class='hs-varid'>l</span>
<a name="line-471"></a> <span class='hs-str'>"?!"</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>RPOptG</span> <span class='hs-varid'>l</span>
<a name="line-472"></a> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>rpOpFail</span> <span class='hs-varid'>o</span>
<a name="line-473"></a><span class='hs-definition'>checkRPatOp</span> <span class='hs-varid'>o</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>rpOpFail</span> <span class='hs-varid'>o</span>
<a name="line-474"></a>
<a name="line-475"></a><a name="rpOpFail"></a><span class='hs-definition'>rpOpFail</span> <span class='hs-varid'>sym</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fail</span> <span class='hs-varop'>$</span> <span class='hs-str'>"Unrecognized regular pattern operator: "</span> <span class='hs-varop'>++</span> <span class='hs-varid'>prettyPrint</span> <span class='hs-varid'>sym</span>
<a name="line-476"></a>
<a name="line-477"></a><a name="fixRPOpPrec"></a><span class='hs-definition'>fixRPOpPrec</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>RPat</span> <span class='hs-conid'>L</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>RPat</span> <span class='hs-conid'>L</span>
<a name="line-478"></a><span class='hs-definition'>fixRPOpPrec</span> <span class='hs-varid'>rp</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>rp</span> <span class='hs-keyword'>of</span>
<a name="line-479"></a> <span class='hs-conid'>RPOp</span> <span class='hs-varid'>l</span> <span class='hs-varid'>rp</span> <span class='hs-varid'>rpop</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>fPrecOp</span> <span class='hs-varid'>rp</span> <span class='hs-layout'>(</span><span class='hs-varid'>flip</span> <span class='hs-layout'>(</span><span class='hs-conid'>RPOp</span> <span class='hs-varid'>l</span><span class='hs-layout'>)</span> <span class='hs-varid'>rpop</span><span class='hs-layout'>)</span>
<a name="line-480"></a> <span class='hs-conid'>RPEither</span> <span class='hs-varid'>l</span> <span class='hs-varid'>rp1</span> <span class='hs-varid'>rp2</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>RPEither</span> <span class='hs-varid'>l</span> <span class='hs-layout'>(</span><span class='hs-varid'>fixRPOpPrec</span> <span class='hs-varid'>rp1</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>fixRPOpPrec</span> <span class='hs-varid'>rp2</span><span class='hs-layout'>)</span>
<a name="line-481"></a> <span class='hs-conid'>RPSeq</span> <span class='hs-varid'>l</span> <span class='hs-varid'>rps</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>RPSeq</span> <span class='hs-varid'>l</span> <span class='hs-varop'>$</span> <span class='hs-varid'>map</span> <span class='hs-varid'>fixRPOpPrec</span> <span class='hs-varid'>rps</span>
<a name="line-482"></a> <span class='hs-conid'>RPCAs</span> <span class='hs-varid'>l</span> <span class='hs-varid'>n</span> <span class='hs-varid'>rp</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>RPCAs</span> <span class='hs-varid'>l</span> <span class='hs-varid'>n</span> <span class='hs-varop'>$</span> <span class='hs-varid'>fixRPOpPrec</span> <span class='hs-varid'>rp</span>
<a name="line-483"></a> <span class='hs-conid'>RPAs</span> <span class='hs-varid'>l</span> <span class='hs-varid'>n</span> <span class='hs-varid'>rp</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>RPAs</span> <span class='hs-varid'>l</span> <span class='hs-varid'>n</span> <span class='hs-varop'>$</span> <span class='hs-varid'>fixRPOpPrec</span> <span class='hs-varid'>rp</span>
<a name="line-484"></a> <span class='hs-conid'>RPParen</span> <span class='hs-varid'>l</span> <span class='hs-varid'>rp</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>RPParen</span> <span class='hs-varid'>l</span> <span class='hs-varop'>$</span> <span class='hs-varid'>fixRPOpPrec</span> <span class='hs-varid'>rp</span>
<a name="line-485"></a> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>rp</span>
<a name="line-486"></a>
<a name="line-487"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>fPrecOp</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>RPat</span> <span class='hs-conid'>L</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>RPat</span> <span class='hs-conid'>L</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>RPat</span> <span class='hs-conid'>L</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>RPat</span> <span class='hs-conid'>L</span>
<a name="line-488"></a> <span class='hs-varid'>fPrecOp</span> <span class='hs-layout'>(</span><span class='hs-conid'>RPOp</span> <span class='hs-varid'>l</span> <span class='hs-varid'>rp</span> <span class='hs-varid'>rpop</span><span class='hs-layout'>)</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fPrecOp</span> <span class='hs-varid'>rp</span> <span class='hs-layout'>(</span><span class='hs-varid'>f</span> <span class='hs-varop'>.</span> <span class='hs-varid'>flip</span> <span class='hs-layout'>(</span><span class='hs-conid'>RPOp</span> <span class='hs-varid'>l</span><span class='hs-layout'>)</span> <span class='hs-varid'>rpop</span><span class='hs-layout'>)</span>
<a name="line-489"></a> <span class='hs-varid'>fPrecOp</span> <span class='hs-layout'>(</span><span class='hs-conid'>RPCAs</span> <span class='hs-varid'>l</span> <span class='hs-varid'>n</span> <span class='hs-varid'>rp</span><span class='hs-layout'>)</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fPrecAs</span> <span class='hs-varid'>rp</span> <span class='hs-varid'>f</span> <span class='hs-layout'>(</span><span class='hs-conid'>RPCAs</span> <span class='hs-varid'>l</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span>
<a name="line-490"></a> <span class='hs-varid'>fPrecOp</span> <span class='hs-layout'>(</span><span class='hs-conid'>RPAs</span> <span class='hs-varid'>l</span> <span class='hs-varid'>n</span> <span class='hs-varid'>rp</span><span class='hs-layout'>)</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fPrecAs</span> <span class='hs-varid'>rp</span> <span class='hs-varid'>f</span> <span class='hs-layout'>(</span><span class='hs-conid'>RPAs</span> <span class='hs-varid'>l</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span>
<a name="line-491"></a> <span class='hs-varid'>fPrecOp</span> <span class='hs-varid'>rp</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>f</span> <span class='hs-varop'>$</span> <span class='hs-varid'>fixRPOpPrec</span> <span class='hs-varid'>rp</span>
<a name="line-492"></a> <span class='hs-varid'>fPrecAs</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>RPat</span> <span class='hs-conid'>L</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>RPat</span> <span class='hs-conid'>L</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>RPat</span> <span class='hs-conid'>L</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>RPat</span> <span class='hs-conid'>L</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>RPat</span> <span class='hs-conid'>L</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>RPat</span> <span class='hs-conid'>L</span>
<a name="line-493"></a> <span class='hs-varid'>fPrecAs</span> <span class='hs-layout'>(</span><span class='hs-conid'>RPCAs</span> <span class='hs-varid'>l</span> <span class='hs-varid'>n</span> <span class='hs-varid'>rp</span><span class='hs-layout'>)</span> <span class='hs-varid'>f</span> <span class='hs-varid'>g</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fPrecAs</span> <span class='hs-varid'>rp</span> <span class='hs-varid'>f</span> <span class='hs-layout'>(</span><span class='hs-varid'>g</span> <span class='hs-varop'>.</span> <span class='hs-conid'>RPCAs</span> <span class='hs-varid'>l</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span>
<a name="line-494"></a> <span class='hs-varid'>fPrecAs</span> <span class='hs-layout'>(</span><span class='hs-conid'>RPAs</span> <span class='hs-varid'>l</span> <span class='hs-varid'>n</span> <span class='hs-varid'>rp</span><span class='hs-layout'>)</span> <span class='hs-varid'>f</span> <span class='hs-varid'>g</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fPrecAs</span> <span class='hs-varid'>rp</span> <span class='hs-varid'>f</span> <span class='hs-layout'>(</span><span class='hs-varid'>g</span> <span class='hs-varop'>.</span> <span class='hs-conid'>RPAs</span> <span class='hs-varid'>l</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span>
<a name="line-495"></a> <span class='hs-varid'>fPrecAs</span> <span class='hs-varid'>rp</span> <span class='hs-varid'>f</span> <span class='hs-varid'>g</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>g</span> <span class='hs-varop'>.</span> <span class='hs-varid'>f</span> <span class='hs-varop'>$</span> <span class='hs-varid'>fixRPOpPrec</span> <span class='hs-varid'>rp</span>
<a name="line-496"></a>
<a name="line-497"></a>
<a name="line-498"></a><a name="mkChildrenPat"></a><span class='hs-definition'>mkChildrenPat</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Pat</span> <span class='hs-conid'>L</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Pat</span> <span class='hs-conid'>L</span><span class='hs-keyglyph'>]</span>
<a name="line-499"></a><span class='hs-definition'>mkChildrenPat</span> <span class='hs-varid'>ps</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>mkCPAux</span> <span class='hs-varid'>ps</span> <span class='hs-conid'>[]</span>
<a name="line-500"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>mkCPAux</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Pat</span> <span class='hs-conid'>L</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Pat</span> <span class='hs-conid'>L</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Pat</span> <span class='hs-conid'>L</span><span class='hs-keyglyph'>]</span>
<a name="line-501"></a> <span class='hs-varid'>mkCPAux</span> <span class='hs-conid'>[]</span> <span class='hs-varid'>qs</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>reverse</span> <span class='hs-varid'>qs</span>
<a name="line-502"></a> <span class='hs-varid'>mkCPAux</span> <span class='hs-layout'>(</span><span class='hs-varid'>p</span><span class='hs-conop'>:</span><span class='hs-varid'>ps</span><span class='hs-layout'>)</span> <span class='hs-varid'>qs</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>p</span> <span class='hs-keyword'>of</span>
<a name="line-503"></a> <span class='hs-layout'>(</span><span class='hs-conid'>PRPat</span> <span class='hs-varid'>l</span> <span class='hs-varid'>rps</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>mkCRP</span> <span class='hs-varid'>l</span> <span class='hs-varid'>ps</span> <span class='hs-layout'>(</span><span class='hs-varid'>reverse</span> <span class='hs-varid'>rps</span> <span class='hs-varop'>++</span> <span class='hs-varid'>map</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>q</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>RPPat</span> <span class='hs-layout'>(</span><span class='hs-varid'>ann</span> <span class='hs-varid'>q</span><span class='hs-layout'>)</span> <span class='hs-varid'>q</span><span class='hs-layout'>)</span> <span class='hs-varid'>qs</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span>
<a name="line-504"></a> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>mkCPAux</span> <span class='hs-varid'>ps</span> <span class='hs-layout'>(</span><span class='hs-varid'>p</span><span class='hs-conop'>:</span><span class='hs-varid'>qs</span><span class='hs-layout'>)</span>
<a name="line-505"></a>
<a name="line-506"></a> <span class='hs-varid'>mkCRP</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>L</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Pat</span> <span class='hs-conid'>L</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>RPat</span> <span class='hs-conid'>L</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Pat</span> <span class='hs-conid'>L</span>
<a name="line-507"></a> <span class='hs-varid'>mkCRP</span> <span class='hs-varid'>l</span> <span class='hs-conid'>[]</span> <span class='hs-varid'>rps</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>PXRPats</span> <span class='hs-varid'>l</span> <span class='hs-varop'>$</span> <span class='hs-varid'>reverse</span> <span class='hs-varid'>rps</span>
<a name="line-508"></a> <span class='hs-varid'>mkCRP</span> <span class='hs-keyword'>_</span> <span class='hs-layout'>(</span><span class='hs-varid'>p</span><span class='hs-conop'>:</span><span class='hs-varid'>ps</span><span class='hs-layout'>)</span> <span class='hs-varid'>rps</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>p</span> <span class='hs-keyword'>of</span>
<a name="line-509"></a> <span class='hs-layout'>(</span><span class='hs-conid'>PXRPats</span> <span class='hs-varid'>l</span> <span class='hs-varid'>rqs</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>mkCRP</span> <span class='hs-varid'>l</span> <span class='hs-varid'>ps</span> <span class='hs-layout'>(</span><span class='hs-varid'>reverse</span> <span class='hs-varid'>rqs</span> <span class='hs-varop'>++</span> <span class='hs-varid'>rps</span><span class='hs-layout'>)</span>
<a name="line-510"></a> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>mkCRP</span> <span class='hs-layout'>(</span><span class='hs-varid'>ann</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span> <span class='hs-varid'>ps</span> <span class='hs-layout'>(</span><span class='hs-conid'>RPPat</span> <span class='hs-layout'>(</span><span class='hs-varid'>ann</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span> <span class='hs-varid'>p</span> <span class='hs-conop'>:</span> <span class='hs-varid'>rps</span><span class='hs-layout'>)</span>
<a name="line-511"></a>
<a name="line-512"></a><span class='hs-comment'>-----------------------------------------------------------------------------</span>
<a name="line-513"></a><span class='hs-comment'>-- Check Expression Syntax</span>
<a name="line-514"></a>
<a name="line-515"></a><a name="checkExpr"></a><span class='hs-definition'>checkExpr</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PExp</span> <span class='hs-conid'>L</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>P</span> <span class='hs-layout'>(</span><span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>Exp</span> <span class='hs-conid'>L</span><span class='hs-layout'>)</span>
<a name="line-516"></a><span class='hs-definition'>checkExpr</span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>e</span> <span class='hs-keyword'>of</span>
<a name="line-517"></a> <span class='hs-conid'>Var</span> <span class='hs-varid'>l</span> <span class='hs-varid'>v</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>Var</span> <span class='hs-varid'>l</span> <span class='hs-varid'>v</span>
<a name="line-518"></a> <span class='hs-conid'>IPVar</span> <span class='hs-varid'>l</span> <span class='hs-varid'>v</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>IPVar</span> <span class='hs-varid'>l</span> <span class='hs-varid'>v</span>
<a name="line-519"></a> <span class='hs-conid'>Con</span> <span class='hs-varid'>l</span> <span class='hs-varid'>c</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>Con</span> <span class='hs-varid'>l</span> <span class='hs-varid'>c</span>
<a name="line-520"></a> <span class='hs-conid'>Lit</span> <span class='hs-varid'>l</span> <span class='hs-varid'>lit</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>Lit</span> <span class='hs-varid'>l</span> <span class='hs-varid'>lit</span>
<a name="line-521"></a> <span class='hs-conid'>InfixApp</span> <span class='hs-varid'>l</span> <span class='hs-varid'>e1</span> <span class='hs-varid'>op</span> <span class='hs-varid'>e2</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>check2Exprs</span> <span class='hs-varid'>e1</span> <span class='hs-varid'>e2</span> <span class='hs-layout'>(</span><span class='hs-varid'>flip</span> <span class='hs-layout'>(</span><span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>InfixApp</span> <span class='hs-varid'>l</span><span class='hs-layout'>)</span> <span class='hs-varid'>op</span><span class='hs-layout'>)</span>
<a name="line-522"></a> <span class='hs-conid'>App</span> <span class='hs-varid'>l</span> <span class='hs-varid'>e1</span> <span class='hs-varid'>e2</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>check2Exprs</span> <span class='hs-varid'>e1</span> <span class='hs-varid'>e2</span> <span class='hs-layout'>(</span><span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>App</span> <span class='hs-varid'>l</span><span class='hs-layout'>)</span>
<a name="line-523"></a> <span class='hs-conid'>NegApp</span> <span class='hs-varid'>l</span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>check1Expr</span> <span class='hs-varid'>e</span> <span class='hs-layout'>(</span><span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>NegApp</span> <span class='hs-varid'>l</span><span class='hs-layout'>)</span>
<a name="line-524"></a> <span class='hs-conid'>Lambda</span> <span class='hs-varid'>loc</span> <span class='hs-varid'>ps</span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>check1Expr</span> <span class='hs-varid'>e</span> <span class='hs-layout'>(</span><span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>Lambda</span> <span class='hs-varid'>loc</span> <span class='hs-varid'>ps</span><span class='hs-layout'>)</span>
<a name="line-525"></a> <span class='hs-conid'>Let</span> <span class='hs-varid'>l</span> <span class='hs-varid'>bs</span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>check1Expr</span> <span class='hs-varid'>e</span> <span class='hs-layout'>(</span><span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>Let</span> <span class='hs-varid'>l</span> <span class='hs-varid'>bs</span><span class='hs-layout'>)</span>
<a name="line-526"></a> <span class='hs-conid'>If</span> <span class='hs-varid'>l</span> <span class='hs-varid'>e1</span> <span class='hs-varid'>e2</span> <span class='hs-varid'>e3</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>check3Exprs</span> <span class='hs-varid'>e1</span> <span class='hs-varid'>e2</span> <span class='hs-varid'>e3</span> <span class='hs-layout'>(</span><span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>If</span> <span class='hs-varid'>l</span><span class='hs-layout'>)</span>
<a name="line-527"></a> <span class='hs-conid'>Case</span> <span class='hs-varid'>l</span> <span class='hs-varid'>e</span> <span class='hs-varid'>alts</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-528"></a> <span class='hs-varid'>e</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>checkExpr</span> <span class='hs-varid'>e</span>
<a name="line-529"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>Case</span> <span class='hs-varid'>l</span> <span class='hs-varid'>e</span> <span class='hs-varid'>alts</span><span class='hs-layout'>)</span>
<a name="line-530"></a> <span class='hs-conid'>Do</span> <span class='hs-varid'>l</span> <span class='hs-varid'>stmts</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>checkDo</span> <span class='hs-varid'>stmts</span> <span class='hs-varop'>>></span> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>Do</span> <span class='hs-varid'>l</span> <span class='hs-varid'>stmts</span><span class='hs-layout'>)</span>
<a name="line-531"></a> <span class='hs-conid'>MDo</span> <span class='hs-varid'>l</span> <span class='hs-varid'>stmts</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>checkDo</span> <span class='hs-varid'>stmts</span> <span class='hs-varop'>>></span> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>MDo</span> <span class='hs-varid'>l</span> <span class='hs-varid'>stmts</span><span class='hs-layout'>)</span>
<a name="line-532"></a> <span class='hs-conid'>TupleSection</span> <span class='hs-varid'>l</span> <span class='hs-varid'>mes</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>if</span> <span class='hs-varid'>not</span> <span class='hs-layout'>(</span><span class='hs-varid'>any</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-varop'>==</span><span class='hs-layout'>)</span> <span class='hs-conid'>Nothing</span><span class='hs-layout'>)</span> <span class='hs-varid'>mes</span><span class='hs-layout'>)</span>
<a name="line-533"></a> <span class='hs-keyword'>then</span> <span class='hs-varid'>checkManyExprs</span> <span class='hs-layout'>(</span><span class='hs-varid'>map</span> <span class='hs-varid'>fromJust</span> <span class='hs-varid'>mes</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>Tuple</span> <span class='hs-varid'>l</span><span class='hs-layout'>)</span>
<a name="line-534"></a> <span class='hs-keyword'>else</span> <span class='hs-keyword'>do</span> <span class='hs-varid'>checkEnabled</span> <span class='hs-conid'>TupleSections</span>
<a name="line-535"></a> <span class='hs-varid'>mes'</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>mapM</span> <span class='hs-varid'>mCheckExpr</span> <span class='hs-varid'>mes</span>
<a name="line-536"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>TupleSection</span> <span class='hs-varid'>l</span> <span class='hs-varid'>mes'</span>
<a name="line-537"></a>
<a name="line-538"></a>
<a name="line-539"></a> <span class='hs-conid'>List</span> <span class='hs-varid'>l</span> <span class='hs-varid'>es</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>checkManyExprs</span> <span class='hs-varid'>es</span> <span class='hs-layout'>(</span><span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>List</span> <span class='hs-varid'>l</span><span class='hs-layout'>)</span>
<a name="line-540"></a> <span class='hs-comment'>-- Since we don't parse things as left or right sections, we need to mangle them into that.</span>
<a name="line-541"></a> <span class='hs-conid'>Paren</span> <span class='hs-varid'>l</span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>case</span> <span class='hs-varid'>e</span> <span class='hs-keyword'>of</span>
<a name="line-542"></a> <span class='hs-conid'>PostOp</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>e1</span> <span class='hs-varid'>op</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>check1Expr</span> <span class='hs-varid'>e1</span> <span class='hs-layout'>(</span><span class='hs-varid'>flip</span> <span class='hs-layout'>(</span><span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>LeftSection</span> <span class='hs-varid'>l</span><span class='hs-layout'>)</span> <span class='hs-varid'>op</span><span class='hs-layout'>)</span>
<a name="line-543"></a> <span class='hs-conid'>PreOp</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>op</span> <span class='hs-varid'>e2</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>check1Expr</span> <span class='hs-varid'>e2</span> <span class='hs-layout'>(</span><span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>RightSection</span> <span class='hs-varid'>l</span> <span class='hs-varid'>op</span><span class='hs-layout'>)</span>
<a name="line-544"></a> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>check1Expr</span> <span class='hs-varid'>e</span> <span class='hs-layout'>(</span><span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>Paren</span> <span class='hs-varid'>l</span><span class='hs-layout'>)</span>
<a name="line-545"></a> <span class='hs-conid'>RecConstr</span> <span class='hs-varid'>l</span> <span class='hs-varid'>c</span> <span class='hs-varid'>fields</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-546"></a> <span class='hs-varid'>fields</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>mapM</span> <span class='hs-varid'>checkField</span> <span class='hs-varid'>fields</span>
<a name="line-547"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>RecConstr</span> <span class='hs-varid'>l</span> <span class='hs-varid'>c</span> <span class='hs-varid'>fields</span><span class='hs-layout'>)</span>
<a name="line-548"></a> <span class='hs-conid'>RecUpdate</span> <span class='hs-varid'>l</span> <span class='hs-varid'>e</span> <span class='hs-varid'>fields</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-549"></a> <span class='hs-varid'>fields</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>mapM</span> <span class='hs-varid'>checkField</span> <span class='hs-varid'>fields</span>
<a name="line-550"></a> <span class='hs-varid'>e</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>checkExpr</span> <span class='hs-varid'>e</span>
<a name="line-551"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>RecUpdate</span> <span class='hs-varid'>l</span> <span class='hs-varid'>e</span> <span class='hs-varid'>fields</span><span class='hs-layout'>)</span>
<a name="line-552"></a> <span class='hs-conid'>EnumFrom</span> <span class='hs-varid'>l</span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>check1Expr</span> <span class='hs-varid'>e</span> <span class='hs-layout'>(</span><span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>EnumFrom</span> <span class='hs-varid'>l</span><span class='hs-layout'>)</span>
<a name="line-553"></a> <span class='hs-conid'>EnumFromTo</span> <span class='hs-varid'>l</span> <span class='hs-varid'>e1</span> <span class='hs-varid'>e2</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>check2Exprs</span> <span class='hs-varid'>e1</span> <span class='hs-varid'>e2</span> <span class='hs-layout'>(</span><span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>EnumFromTo</span> <span class='hs-varid'>l</span><span class='hs-layout'>)</span>
<a name="line-554"></a> <span class='hs-conid'>EnumFromThen</span> <span class='hs-varid'>l</span> <span class='hs-varid'>e1</span> <span class='hs-varid'>e2</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>check2Exprs</span> <span class='hs-varid'>e1</span> <span class='hs-varid'>e2</span> <span class='hs-layout'>(</span><span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>EnumFromThen</span> <span class='hs-varid'>l</span><span class='hs-layout'>)</span>
<a name="line-555"></a> <span class='hs-conid'>EnumFromThenTo</span> <span class='hs-varid'>l</span> <span class='hs-varid'>e1</span> <span class='hs-varid'>e2</span> <span class='hs-varid'>e3</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>check3Exprs</span> <span class='hs-varid'>e1</span> <span class='hs-varid'>e2</span> <span class='hs-varid'>e3</span> <span class='hs-layout'>(</span><span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>EnumFromThenTo</span> <span class='hs-varid'>l</span><span class='hs-layout'>)</span>
<a name="line-556"></a> <span class='hs-comment'>-- a parallel list comprehension, which could be just a simple one</span>
<a name="line-557"></a> <span class='hs-conid'>ParComp</span> <span class='hs-varid'>l</span> <span class='hs-varid'>e</span> <span class='hs-varid'>qualss</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-558"></a> <span class='hs-varid'>e</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>checkExpr</span> <span class='hs-varid'>e</span>
<a name="line-559"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>qualss</span> <span class='hs-keyword'>of</span>
<a name="line-560"></a> <span class='hs-keyglyph'>[</span><span class='hs-varid'>quals</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>ListComp</span> <span class='hs-varid'>l</span> <span class='hs-varid'>e</span> <span class='hs-varid'>quals</span><span class='hs-layout'>)</span>
<a name="line-561"></a> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>ParComp</span> <span class='hs-varid'>l</span> <span class='hs-varid'>e</span> <span class='hs-varid'>qualss</span><span class='hs-layout'>)</span>
<a name="line-562"></a> <span class='hs-conid'>ExpTypeSig</span> <span class='hs-varid'>loc</span> <span class='hs-varid'>e</span> <span class='hs-varid'>ty</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-563"></a> <span class='hs-varid'>e</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>checkExpr</span> <span class='hs-varid'>e</span>
<a name="line-564"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>ExpTypeSig</span> <span class='hs-varid'>loc</span> <span class='hs-varid'>e</span> <span class='hs-varid'>ty</span><span class='hs-layout'>)</span>
<a name="line-565"></a>
<a name="line-566"></a> <span class='hs-comment'>--Template Haskell</span>
<a name="line-567"></a> <span class='hs-conid'>BracketExp</span> <span class='hs-varid'>l</span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>BracketExp</span> <span class='hs-varid'>l</span> <span class='hs-varid'>e</span>
<a name="line-568"></a> <span class='hs-conid'>SpliceExp</span> <span class='hs-varid'>l</span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>SpliceExp</span> <span class='hs-varid'>l</span> <span class='hs-varid'>e</span>
<a name="line-569"></a> <span class='hs-conid'>TypQuote</span> <span class='hs-varid'>l</span> <span class='hs-varid'>q</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>TypQuote</span> <span class='hs-varid'>l</span> <span class='hs-varid'>q</span>
<a name="line-570"></a> <span class='hs-conid'>VarQuote</span> <span class='hs-varid'>l</span> <span class='hs-varid'>q</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>VarQuote</span> <span class='hs-varid'>l</span> <span class='hs-varid'>q</span>
<a name="line-571"></a> <span class='hs-conid'>QuasiQuote</span> <span class='hs-varid'>l</span> <span class='hs-varid'>n</span> <span class='hs-varid'>q</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>QuasiQuote</span> <span class='hs-varid'>l</span> <span class='hs-varid'>n</span> <span class='hs-varid'>q</span>
<a name="line-572"></a>
<a name="line-573"></a> <span class='hs-comment'>-- Hsx</span>
<a name="line-574"></a> <span class='hs-conid'>XTag</span> <span class='hs-varid'>l</span> <span class='hs-varid'>n</span> <span class='hs-varid'>attrs</span> <span class='hs-varid'>mattr</span> <span class='hs-varid'>cs</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span> <span class='hs-varid'>attrs</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>mapM</span> <span class='hs-varid'>checkAttr</span> <span class='hs-varid'>attrs</span>
<a name="line-575"></a> <span class='hs-varid'>cs</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>mapM</span> <span class='hs-varid'>checkExpr</span> <span class='hs-varid'>cs</span>
<a name="line-576"></a> <span class='hs-varid'>mattr</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>maybe</span> <span class='hs-layout'>(</span><span class='hs-varid'>return</span> <span class='hs-conid'>Nothing</span><span class='hs-layout'>)</span>
<a name="line-577"></a> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>e</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>checkExpr</span> <span class='hs-varid'>e</span> <span class='hs-varop'>>>=</span> <span class='hs-varid'>return</span> <span class='hs-varop'>.</span> <span class='hs-conid'>Just</span><span class='hs-layout'>)</span>
<a name="line-578"></a> <span class='hs-varid'>mattr</span>
<a name="line-579"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>XTag</span> <span class='hs-varid'>l</span> <span class='hs-varid'>n</span> <span class='hs-varid'>attrs</span> <span class='hs-varid'>mattr</span> <span class='hs-varid'>cs</span>
<a name="line-580"></a> <span class='hs-conid'>XETag</span> <span class='hs-varid'>l</span> <span class='hs-varid'>n</span> <span class='hs-varid'>attrs</span> <span class='hs-varid'>mattr</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span> <span class='hs-varid'>attrs</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>mapM</span> <span class='hs-varid'>checkAttr</span> <span class='hs-varid'>attrs</span>
<a name="line-581"></a> <span class='hs-varid'>mattr</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>maybe</span> <span class='hs-layout'>(</span><span class='hs-varid'>return</span> <span class='hs-conid'>Nothing</span><span class='hs-layout'>)</span>
<a name="line-582"></a> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>e</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>checkExpr</span> <span class='hs-varid'>e</span> <span class='hs-varop'>>>=</span> <span class='hs-varid'>return</span> <span class='hs-varop'>.</span> <span class='hs-conid'>Just</span><span class='hs-layout'>)</span>
<a name="line-583"></a> <span class='hs-varid'>mattr</span>
<a name="line-584"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>XETag</span> <span class='hs-varid'>l</span> <span class='hs-varid'>n</span> <span class='hs-varid'>attrs</span> <span class='hs-varid'>mattr</span>
<a name="line-585"></a> <span class='hs-conid'>XPcdata</span> <span class='hs-varid'>l</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>XPcdata</span> <span class='hs-varid'>l</span> <span class='hs-varid'>p</span>
<a name="line-586"></a> <span class='hs-conid'>XExpTag</span> <span class='hs-varid'>l</span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>checkExpr</span> <span class='hs-varid'>e</span>
<a name="line-587"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>XExpTag</span> <span class='hs-varid'>l</span> <span class='hs-varid'>e</span>
<a name="line-588"></a> <span class='hs-conid'>XChildTag</span> <span class='hs-varid'>l</span> <span class='hs-varid'>es</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span> <span class='hs-varid'>es</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>mapM</span> <span class='hs-varid'>checkExpr</span> <span class='hs-varid'>es</span>
<a name="line-589"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>XChildTag</span> <span class='hs-varid'>l</span> <span class='hs-varid'>es</span>
<a name="line-590"></a> <span class='hs-comment'>-- Pragmas</span>
<a name="line-591"></a> <span class='hs-conid'>CorePragma</span> <span class='hs-varid'>l</span> <span class='hs-varid'>s</span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>check1Expr</span> <span class='hs-varid'>e</span> <span class='hs-layout'>(</span><span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>CorePragma</span> <span class='hs-varid'>l</span> <span class='hs-varid'>s</span><span class='hs-layout'>)</span>
<a name="line-592"></a> <span class='hs-conid'>SCCPragma</span> <span class='hs-varid'>l</span> <span class='hs-varid'>s</span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>check1Expr</span> <span class='hs-varid'>e</span> <span class='hs-layout'>(</span><span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>SCCPragma</span> <span class='hs-varid'>l</span> <span class='hs-varid'>s</span><span class='hs-layout'>)</span>
<a name="line-593"></a> <span class='hs-conid'>GenPragma</span> <span class='hs-varid'>l</span> <span class='hs-varid'>s</span> <span class='hs-varid'>xx</span> <span class='hs-varid'>yy</span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>check1Expr</span> <span class='hs-varid'>e</span> <span class='hs-layout'>(</span><span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>GenPragma</span> <span class='hs-varid'>l</span> <span class='hs-varid'>s</span> <span class='hs-varid'>xx</span> <span class='hs-varid'>yy</span><span class='hs-layout'>)</span>
<a name="line-594"></a><span class='hs-comment'>-- UnknownExpPragma n s -> return $ S.UnknownExpPragma n s</span>
<a name="line-595"></a>
<a name="line-596"></a> <span class='hs-comment'>-- Arrows</span>
<a name="line-597"></a> <span class='hs-conid'>Proc</span> <span class='hs-varid'>l</span> <span class='hs-varid'>p</span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>checkExpr</span> <span class='hs-varid'>e</span>
<a name="line-598"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>Proc</span> <span class='hs-varid'>l</span> <span class='hs-varid'>p</span> <span class='hs-varid'>e</span>
<a name="line-599"></a> <span class='hs-conid'>LeftArrApp</span> <span class='hs-varid'>l</span> <span class='hs-varid'>e1</span> <span class='hs-varid'>e2</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>check2Exprs</span> <span class='hs-varid'>e1</span> <span class='hs-varid'>e2</span> <span class='hs-layout'>(</span><span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>LeftArrApp</span> <span class='hs-varid'>l</span><span class='hs-layout'>)</span>
<a name="line-600"></a> <span class='hs-conid'>RightArrApp</span> <span class='hs-varid'>l</span> <span class='hs-varid'>e1</span> <span class='hs-varid'>e2</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>check2Exprs</span> <span class='hs-varid'>e1</span> <span class='hs-varid'>e2</span> <span class='hs-layout'>(</span><span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>RightArrApp</span> <span class='hs-varid'>l</span><span class='hs-layout'>)</span>
<a name="line-601"></a> <span class='hs-conid'>LeftArrHighApp</span> <span class='hs-varid'>l</span> <span class='hs-varid'>e1</span> <span class='hs-varid'>e2</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>check2Exprs</span> <span class='hs-varid'>e1</span> <span class='hs-varid'>e2</span> <span class='hs-layout'>(</span><span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>LeftArrHighApp</span> <span class='hs-varid'>l</span><span class='hs-layout'>)</span>
<a name="line-602"></a> <span class='hs-conid'>RightArrHighApp</span> <span class='hs-varid'>l</span> <span class='hs-varid'>e1</span> <span class='hs-varid'>e2</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>check2Exprs</span> <span class='hs-varid'>e1</span> <span class='hs-varid'>e2</span> <span class='hs-layout'>(</span><span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>RightArrHighApp</span> <span class='hs-varid'>l</span><span class='hs-layout'>)</span>
<a name="line-603"></a>
<a name="line-604"></a> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>fail</span> <span class='hs-varop'>$</span> <span class='hs-str'>"Parse error in expression: "</span> <span class='hs-varop'>++</span> <span class='hs-varid'>prettyPrint</span> <span class='hs-varid'>e</span>
<a name="line-605"></a>
<a name="line-606"></a><a name="checkAttr"></a><span class='hs-definition'>checkAttr</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ParseXAttr</span> <span class='hs-conid'>L</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>P</span> <span class='hs-layout'>(</span><span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>XAttr</span> <span class='hs-conid'>L</span><span class='hs-layout'>)</span>
<a name="line-607"></a><span class='hs-definition'>checkAttr</span> <span class='hs-layout'>(</span><span class='hs-conid'>XAttr</span> <span class='hs-varid'>l</span> <span class='hs-varid'>n</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span> <span class='hs-varid'>v</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>checkExpr</span> <span class='hs-varid'>v</span>
<a name="line-608"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>XAttr</span> <span class='hs-varid'>l</span> <span class='hs-varid'>n</span> <span class='hs-varid'>v</span>
<a name="line-609"></a>
<a name="line-610"></a><a name="checkDo"></a><span class='hs-definition'>checkDo</span> <span class='hs-conid'>[]</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fail</span> <span class='hs-str'>"Parse error: Last statement in a do-block must be an expression"</span>
<a name="line-611"></a><span class='hs-definition'>checkDo</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Qualifier</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-conid'>()</span>
<a name="line-612"></a><span class='hs-definition'>checkDo</span> <span class='hs-layout'>(</span><span class='hs-keyword'>_</span><span class='hs-conop'>:</span><span class='hs-varid'>xs</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>checkDo</span> <span class='hs-varid'>xs</span>
<a name="line-613"></a>
<a name="line-614"></a><a name="check1Expr"></a><span class='hs-comment'>-- type signature for polymorphic recursion!!</span>
<a name="line-615"></a><span class='hs-definition'>check1Expr</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PExp</span> <span class='hs-conid'>L</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>Exp</span> <span class='hs-conid'>L</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>P</span> <span class='hs-varid'>a</span>
<a name="line-616"></a><span class='hs-definition'>check1Expr</span> <span class='hs-varid'>e1</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-617"></a> <span class='hs-varid'>e1</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>checkExpr</span> <span class='hs-varid'>e1</span>
<a name="line-618"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>f</span> <span class='hs-varid'>e1</span><span class='hs-layout'>)</span>
<a name="line-619"></a>
<a name="line-620"></a><a name="check2Exprs"></a><span class='hs-definition'>check2Exprs</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PExp</span> <span class='hs-conid'>L</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>PExp</span> <span class='hs-conid'>L</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>Exp</span> <span class='hs-conid'>L</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>Exp</span> <span class='hs-conid'>L</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>P</span> <span class='hs-varid'>a</span>
<a name="line-621"></a><span class='hs-definition'>check2Exprs</span> <span class='hs-varid'>e1</span> <span class='hs-varid'>e2</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-622"></a> <span class='hs-varid'>e1</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>checkExpr</span> <span class='hs-varid'>e1</span>
<a name="line-623"></a> <span class='hs-varid'>e2</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>checkExpr</span> <span class='hs-varid'>e2</span>
<a name="line-624"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>f</span> <span class='hs-varid'>e1</span> <span class='hs-varid'>e2</span><span class='hs-layout'>)</span>
<a name="line-625"></a>
<a name="line-626"></a><a name="check3Exprs"></a><span class='hs-definition'>check3Exprs</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PExp</span> <span class='hs-conid'>L</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>PExp</span> <span class='hs-conid'>L</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>PExp</span> <span class='hs-conid'>L</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>Exp</span> <span class='hs-conid'>L</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>Exp</span> <span class='hs-conid'>L</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>Exp</span> <span class='hs-conid'>L</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>P</span> <span class='hs-varid'>a</span>
<a name="line-627"></a><span class='hs-definition'>check3Exprs</span> <span class='hs-varid'>e1</span> <span class='hs-varid'>e2</span> <span class='hs-varid'>e3</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-628"></a> <span class='hs-varid'>e1</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>checkExpr</span> <span class='hs-varid'>e1</span>
<a name="line-629"></a> <span class='hs-varid'>e2</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>checkExpr</span> <span class='hs-varid'>e2</span>
<a name="line-630"></a> <span class='hs-varid'>e3</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>checkExpr</span> <span class='hs-varid'>e3</span>
<a name="line-631"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>f</span> <span class='hs-varid'>e1</span> <span class='hs-varid'>e2</span> <span class='hs-varid'>e3</span><span class='hs-layout'>)</span>
<a name="line-632"></a>
<a name="line-633"></a><a name="checkManyExprs"></a><span class='hs-definition'>checkManyExprs</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>PExp</span> <span class='hs-conid'>L</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>[</span><span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>Exp</span> <span class='hs-conid'>L</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>P</span> <span class='hs-varid'>a</span>
<a name="line-634"></a><span class='hs-definition'>checkManyExprs</span> <span class='hs-varid'>es</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-635"></a> <span class='hs-varid'>es</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>mapM</span> <span class='hs-varid'>checkExpr</span> <span class='hs-varid'>es</span>
<a name="line-636"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>f</span> <span class='hs-varid'>es</span><span class='hs-layout'>)</span>
<a name="line-637"></a>
<a name="line-638"></a><a name="mCheckExpr"></a><span class='hs-definition'>mCheckExpr</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Maybe</span> <span class='hs-layout'>(</span><span class='hs-conid'>PExp</span> <span class='hs-conid'>L</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>P</span> <span class='hs-layout'>(</span><span class='hs-conid'>Maybe</span> <span class='hs-layout'>(</span><span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>Exp</span> <span class='hs-conid'>L</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-639"></a><span class='hs-definition'>mCheckExpr</span> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-conid'>Nothing</span>
<a name="line-640"></a><span class='hs-definition'>mCheckExpr</span> <span class='hs-layout'>(</span><span class='hs-conid'>Just</span> <span class='hs-varid'>e</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>checkExpr</span> <span class='hs-varid'>e</span> <span class='hs-varop'>>>=</span> <span class='hs-varid'>return</span> <span class='hs-varop'>.</span> <span class='hs-conid'>Just</span>
<a name="line-641"></a>
<a name="line-642"></a><a name="checkRuleExpr"></a><span class='hs-definition'>checkRuleExpr</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PExp</span> <span class='hs-conid'>L</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>P</span> <span class='hs-layout'>(</span><span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>Exp</span> <span class='hs-conid'>L</span><span class='hs-layout'>)</span>
<a name="line-643"></a><span class='hs-definition'>checkRuleExpr</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>checkExpr</span>
<a name="line-644"></a>
<a name="line-645"></a><a name="readTool"></a><span class='hs-definition'>readTool</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Maybe</span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Maybe</span> <span class='hs-conid'>Tool</span>
<a name="line-646"></a><span class='hs-definition'>readTool</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fmap</span> <span class='hs-varid'>readC</span>
<a name="line-647"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>readC</span> <span class='hs-varid'>str</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>str</span> <span class='hs-keyword'>of</span>
<a name="line-648"></a> <span class='hs-str'>"GHC"</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>GHC</span>
<a name="line-649"></a> <span class='hs-str'>"HUGS"</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>HUGS</span>
<a name="line-650"></a> <span class='hs-str'>"NHC98"</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>NHC98</span>
<a name="line-651"></a> <span class='hs-str'>"YHC"</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>YHC</span>
<a name="line-652"></a> <span class='hs-str'>"HADDOCK"</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>HADDOCK</span>
<a name="line-653"></a> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>UnknownTool</span> <span class='hs-varid'>str</span>
<a name="line-654"></a>
<a name="line-655"></a><a name="checkField"></a><span class='hs-definition'>checkField</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PFieldUpdate</span> <span class='hs-conid'>L</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>P</span> <span class='hs-layout'>(</span><span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>FieldUpdate</span> <span class='hs-conid'>L</span><span class='hs-layout'>)</span>
<a name="line-656"></a><span class='hs-definition'>checkField</span> <span class='hs-layout'>(</span><span class='hs-conid'>FieldUpdate</span> <span class='hs-varid'>l</span> <span class='hs-varid'>n</span> <span class='hs-varid'>e</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>check1Expr</span> <span class='hs-varid'>e</span> <span class='hs-layout'>(</span><span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>FieldUpdate</span> <span class='hs-varid'>l</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span>
<a name="line-657"></a><span class='hs-definition'>checkField</span> <span class='hs-layout'>(</span><span class='hs-conid'>FieldPun</span> <span class='hs-varid'>l</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>FieldPun</span> <span class='hs-varid'>l</span> <span class='hs-varid'>n</span>
<a name="line-658"></a><span class='hs-definition'>checkField</span> <span class='hs-layout'>(</span><span class='hs-conid'>FieldWildcard</span> <span class='hs-varid'>l</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>FieldWildcard</span> <span class='hs-varid'>l</span>
<a name="line-659"></a>
<a name="line-660"></a><a name="getGConName"></a><span class='hs-definition'>getGConName</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>Exp</span> <span class='hs-conid'>L</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>P</span> <span class='hs-layout'>(</span><span class='hs-conid'>QName</span> <span class='hs-conid'>L</span><span class='hs-layout'>)</span>
<a name="line-661"></a><span class='hs-definition'>getGConName</span> <span class='hs-layout'>(</span><span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>Con</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-varid'>n</span>
<a name="line-662"></a><span class='hs-definition'>getGConName</span> <span class='hs-layout'>(</span><span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>List</span> <span class='hs-varid'>l</span> <span class='hs-conid'>[]</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>list_cons_name</span> <span class='hs-varid'>l</span><span class='hs-layout'>)</span>
<a name="line-663"></a><span class='hs-definition'>getGConName</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fail</span> <span class='hs-str'>"Expression in reification is not a name"</span>
<a name="line-664"></a>
<a name="line-665"></a><span class='hs-comment'>-----------------------------------------------------------------------------</span>
<a name="line-666"></a><span class='hs-comment'>-- Check Equation Syntax</span>
<a name="line-667"></a>
<a name="line-668"></a><a name="checkValDef"></a><span class='hs-definition'>checkValDef</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>L</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>PExp</span> <span class='hs-conid'>L</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Maybe</span> <span class='hs-layout'>(</span><span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>Type</span> <span class='hs-conid'>L</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Rhs</span> <span class='hs-conid'>L</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Maybe</span> <span class='hs-layout'>(</span><span class='hs-conid'>Binds</span> <span class='hs-conid'>L</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>P</span> <span class='hs-layout'>(</span><span class='hs-conid'>Decl</span> <span class='hs-conid'>L</span><span class='hs-layout'>)</span>
<a name="line-669"></a><span class='hs-definition'>checkValDef</span> <span class='hs-varid'>l</span> <span class='hs-varid'>lhs</span> <span class='hs-varid'>optsig</span> <span class='hs-varid'>rhs</span> <span class='hs-varid'>whereBinds</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-670"></a> <span class='hs-varid'>mlhs</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>isFunLhs</span> <span class='hs-varid'>lhs</span> <span class='hs-conid'>[]</span>
<a name="line-671"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>whpt</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>srcInfoPoints</span> <span class='hs-varid'>l</span>
<a name="line-672"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>mlhs</span> <span class='hs-keyword'>of</span>
<a name="line-673"></a> <span class='hs-conid'>Just</span> <span class='hs-layout'>(</span><span class='hs-varid'>f</span><span class='hs-layout'>,</span><span class='hs-varid'>es</span><span class='hs-layout'>,</span><span class='hs-varid'>b</span><span class='hs-layout'>,</span><span class='hs-varid'>pts</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-674"></a> <span class='hs-varid'>ps</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>mapM</span> <span class='hs-varid'>checkPattern</span> <span class='hs-varid'>es</span>
<a name="line-675"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>l'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>l</span> <span class='hs-layout'>{</span> <span class='hs-varid'>srcInfoPoints</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>pts</span> <span class='hs-varop'>++</span> <span class='hs-varid'>whpt</span> <span class='hs-layout'>}</span>
<a name="line-676"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>optsig</span> <span class='hs-keyword'>of</span> <span class='hs-comment'>-- only pattern bindings can have signatures</span>
<a name="line-677"></a> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>FunBind</span> <span class='hs-varid'>l</span> <span class='hs-varop'>$</span>
<a name="line-678"></a> <span class='hs-keyword'>if</span> <span class='hs-varid'>b</span> <span class='hs-keyword'>then</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Match</span> <span class='hs-varid'>l'</span> <span class='hs-varid'>f</span> <span class='hs-varid'>ps</span> <span class='hs-varid'>rhs</span> <span class='hs-varid'>whereBinds</span><span class='hs-keyglyph'>]</span>
<a name="line-679"></a> <span class='hs-keyword'>else</span> <span class='hs-keyword'>let</span> <span class='hs-layout'>(</span><span class='hs-varid'>a</span><span class='hs-conop'>:</span><span class='hs-varid'>bs</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>ps</span>
<a name="line-680"></a> <span class='hs-keyword'>in</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>InfixMatch</span> <span class='hs-varid'>l'</span> <span class='hs-varid'>a</span> <span class='hs-varid'>f</span> <span class='hs-varid'>bs</span> <span class='hs-varid'>rhs</span> <span class='hs-varid'>whereBinds</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span>
<a name="line-681"></a> <span class='hs-conid'>Just</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>fail</span> <span class='hs-str'>"Cannot give an explicit type signature to a function binding"</span>
<a name="line-682"></a> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-683"></a> <span class='hs-varid'>lhs</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>checkPattern</span> <span class='hs-varid'>lhs</span>
<a name="line-684"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>PatBind</span> <span class='hs-varid'>l</span> <span class='hs-varid'>lhs</span> <span class='hs-varid'>optsig</span> <span class='hs-varid'>rhs</span> <span class='hs-varid'>whereBinds</span><span class='hs-layout'>)</span>
<a name="line-685"></a>
<a name="line-686"></a><span class='hs-comment'>-- A variable binding is parsed as a PatBind.</span>
<a name="line-687"></a>
<a name="line-688"></a><a name="isFunLhs"></a><span class='hs-definition'>isFunLhs</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PExp</span> <span class='hs-conid'>L</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>PExp</span> <span class='hs-conid'>L</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>P</span> <span class='hs-layout'>(</span><span class='hs-conid'>Maybe</span> <span class='hs-layout'>(</span><span class='hs-conid'>Name</span> <span class='hs-conid'>L</span><span class='hs-layout'>,</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>PExp</span> <span class='hs-conid'>L</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>,</span> <span class='hs-conid'>Bool</span><span class='hs-layout'>,</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>S</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-689"></a><span class='hs-definition'>isFunLhs</span> <span class='hs-layout'>(</span><span class='hs-conid'>InfixApp</span> <span class='hs-varid'>ll</span> <span class='hs-varid'>l</span> <span class='hs-layout'>(</span><span class='hs-conid'>QVarOp</span> <span class='hs-varid'>loc</span> <span class='hs-layout'>(</span><span class='hs-conid'>UnQual</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>op</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-varid'>r</span><span class='hs-layout'>)</span> <span class='hs-varid'>es</span>
<a name="line-690"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>op</span> <span class='hs-varop'>=~=</span> <span class='hs-layout'>(</span><span class='hs-conid'>Symbol</span> <span class='hs-conid'>()</span> <span class='hs-str'>"!"</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-691"></a> <span class='hs-varid'>exts</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getExtensions</span>
<a name="line-692"></a> <span class='hs-keyword'>if</span> <span class='hs-conid'>BangPatterns</span> <span class='hs-varop'>`elem`</span> <span class='hs-varid'>exts</span>
<a name="line-693"></a> <span class='hs-keyword'>then</span> <span class='hs-keyword'>let</span> <span class='hs-layout'>(</span><span class='hs-varid'>b</span><span class='hs-layout'>,</span><span class='hs-varid'>bs</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>splitBang</span> <span class='hs-varid'>r</span> <span class='hs-conid'>[]</span>
<a name="line-694"></a> <span class='hs-keyword'>in</span> <span class='hs-varid'>isFunLhs</span> <span class='hs-varid'>l</span> <span class='hs-layout'>(</span><span class='hs-conid'>BangPat</span> <span class='hs-varid'>loc</span> <span class='hs-varid'>b</span> <span class='hs-conop'>:</span> <span class='hs-varid'>bs</span> <span class='hs-varop'>++</span> <span class='hs-varid'>es</span><span class='hs-layout'>)</span>
<a name="line-695"></a> <span class='hs-keyword'>else</span> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>Just</span> <span class='hs-layout'>(</span><span class='hs-varid'>op</span><span class='hs-layout'>,</span> <span class='hs-varid'>l</span><span class='hs-conop'>:</span><span class='hs-varid'>r</span><span class='hs-conop'>:</span><span class='hs-varid'>es</span><span class='hs-layout'>,</span> <span class='hs-conid'>False</span><span class='hs-layout'>,</span> <span class='hs-conid'>[]</span><span class='hs-layout'>)</span> <span class='hs-comment'>-- It's actually a definition of the operator !</span>
<a name="line-696"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>Just</span> <span class='hs-layout'>(</span><span class='hs-varid'>op</span><span class='hs-layout'>,</span> <span class='hs-varid'>l</span><span class='hs-conop'>:</span><span class='hs-varid'>r</span><span class='hs-conop'>:</span><span class='hs-varid'>es</span><span class='hs-layout'>,</span> <span class='hs-conid'>False</span><span class='hs-layout'>,</span> <span class='hs-conid'>[]</span><span class='hs-layout'>)</span>
<a name="line-697"></a><span class='hs-definition'>isFunLhs</span> <span class='hs-layout'>(</span><span class='hs-conid'>App</span> <span class='hs-keyword'>_</span> <span class='hs-layout'>(</span><span class='hs-conid'>Var</span> <span class='hs-keyword'>_</span> <span class='hs-layout'>(</span><span class='hs-conid'>UnQual</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>f</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-varid'>e</span><span class='hs-layout'>)</span> <span class='hs-varid'>es</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>Just</span> <span class='hs-layout'>(</span><span class='hs-varid'>f</span><span class='hs-layout'>,</span> <span class='hs-varid'>e</span><span class='hs-conop'>:</span><span class='hs-varid'>es</span><span class='hs-layout'>,</span> <span class='hs-conid'>True</span><span class='hs-layout'>,</span> <span class='hs-conid'>[]</span><span class='hs-layout'>)</span>
<a name="line-698"></a><span class='hs-definition'>isFunLhs</span> <span class='hs-layout'>(</span><span class='hs-conid'>App</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>f</span> <span class='hs-varid'>e</span><span class='hs-layout'>)</span> <span class='hs-varid'>es</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>isFunLhs</span> <span class='hs-varid'>f</span> <span class='hs-layout'>(</span><span class='hs-varid'>e</span><span class='hs-conop'>:</span><span class='hs-varid'>es</span><span class='hs-layout'>)</span>
<a name="line-699"></a><span class='hs-definition'>isFunLhs</span> <span class='hs-layout'>(</span><span class='hs-conid'>Var</span> <span class='hs-keyword'>_</span> <span class='hs-layout'>(</span><span class='hs-conid'>UnQual</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>f</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-varid'>es</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-keyword'>_</span><span class='hs-conop'>:</span><span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>Just</span> <span class='hs-layout'>(</span><span class='hs-varid'>f</span><span class='hs-layout'>,</span> <span class='hs-varid'>es</span><span class='hs-layout'>,</span> <span class='hs-conid'>True</span><span class='hs-layout'>,</span> <span class='hs-conid'>[]</span><span class='hs-layout'>)</span>
<a name="line-700"></a><span class='hs-definition'>isFunLhs</span> <span class='hs-layout'>(</span><span class='hs-conid'>Paren</span> <span class='hs-varid'>l</span> <span class='hs-varid'>f</span><span class='hs-layout'>)</span> <span class='hs-varid'>es</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-keyword'>_</span><span class='hs-conop'>:</span><span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span> <span class='hs-varid'>mlhs</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>isFunLhs</span> <span class='hs-varid'>f</span> <span class='hs-varid'>es</span>
<a name="line-701"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>mlhs</span> <span class='hs-keyword'>of</span>
<a name="line-702"></a> <span class='hs-conid'>Just</span> <span class='hs-layout'>(</span><span class='hs-varid'>f</span><span class='hs-layout'>,</span><span class='hs-varid'>es</span><span class='hs-layout'>,</span><span class='hs-varid'>b</span><span class='hs-layout'>,</span><span class='hs-varid'>pts</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span>
<a name="line-703"></a> <span class='hs-keyword'>let</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>x</span><span class='hs-layout'>,</span><span class='hs-varid'>y</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>srcInfoPoints</span> <span class='hs-varid'>l</span>
<a name="line-704"></a> <span class='hs-keyword'>in</span> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>Just</span> <span class='hs-layout'>(</span><span class='hs-varid'>f</span><span class='hs-layout'>,</span><span class='hs-varid'>es</span><span class='hs-layout'>,</span><span class='hs-varid'>b</span><span class='hs-layout'>,</span><span class='hs-varid'>x</span><span class='hs-conop'>:</span><span class='hs-varid'>pts</span><span class='hs-varop'>++</span><span class='hs-keyglyph'>[</span><span class='hs-varid'>y</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span>
<a name="line-705"></a> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-conid'>Nothing</span>
<a name="line-706"></a><span class='hs-definition'>isFunLhs</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-conid'>Nothing</span>
<a name="line-707"></a>
<a name="line-708"></a><span class='hs-comment'>-- Separating between signature declarations and value definitions in</span>
<a name="line-709"></a><span class='hs-comment'>-- a post-processing step</span>
<a name="line-710"></a>
<a name="line-711"></a><a name="checkSigVar"></a><span class='hs-definition'>checkSigVar</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PExp</span> <span class='hs-conid'>L</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>P</span> <span class='hs-layout'>(</span><span class='hs-conid'>Name</span> <span class='hs-conid'>L</span><span class='hs-layout'>)</span>
<a name="line-712"></a><span class='hs-definition'>checkSigVar</span> <span class='hs-layout'>(</span><span class='hs-conid'>Var</span> <span class='hs-keyword'>_</span> <span class='hs-layout'>(</span><span class='hs-conid'>UnQual</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-varid'>n</span>
<a name="line-713"></a><span class='hs-definition'>checkSigVar</span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fail</span> <span class='hs-varop'>$</span> <span class='hs-str'>"Left-hand side of type signature is not a variable: "</span> <span class='hs-varop'>++</span> <span class='hs-varid'>prettyPrint</span> <span class='hs-varid'>e</span>
<a name="line-714"></a>
<a name="line-715"></a><span class='hs-comment'>-----------------------------------------------------------------------------</span>
<a name="line-716"></a><span class='hs-comment'>-- In a class or instance body, a pattern binding must be of a variable.</span>
<a name="line-717"></a>
<a name="line-718"></a><a name="checkClassBody"></a><span class='hs-definition'>checkClassBody</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>ClassDecl</span> <span class='hs-conid'>L</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>P</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>ClassDecl</span> <span class='hs-conid'>L</span><span class='hs-keyglyph'>]</span>
<a name="line-719"></a><span class='hs-definition'>checkClassBody</span> <span class='hs-varid'>decls</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-720"></a> <span class='hs-varid'>mapM_</span> <span class='hs-varid'>checkClassMethodDef</span> <span class='hs-varid'>decls</span>
<a name="line-721"></a> <span class='hs-varid'>return</span> <span class='hs-varid'>decls</span>
<a name="line-722"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>checkClassMethodDef</span> <span class='hs-layout'>(</span><span class='hs-conid'>ClsDecl</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>decl</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>checkMethodDef</span> <span class='hs-varid'>decl</span>
<a name="line-723"></a> <span class='hs-varid'>checkClassMethodDef</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-conid'>()</span>
<a name="line-724"></a>
<a name="line-725"></a><a name="checkInstBody"></a><span class='hs-definition'>checkInstBody</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>InstDecl</span> <span class='hs-conid'>L</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>P</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>InstDecl</span> <span class='hs-conid'>L</span><span class='hs-keyglyph'>]</span>
<a name="line-726"></a><span class='hs-definition'>checkInstBody</span> <span class='hs-varid'>decls</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-727"></a> <span class='hs-varid'>mapM_</span> <span class='hs-varid'>checkInstMethodDef</span> <span class='hs-varid'>decls</span>
<a name="line-728"></a> <span class='hs-varid'>return</span> <span class='hs-varid'>decls</span>
<a name="line-729"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>checkInstMethodDef</span> <span class='hs-layout'>(</span><span class='hs-conid'>InsDecl</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>decl</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>checkMethodDef</span> <span class='hs-varid'>decl</span>
<a name="line-730"></a> <span class='hs-varid'>checkInstMethodDef</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-conid'>()</span>
<a name="line-731"></a>
<a name="line-732"></a><a name="checkMethodDef"></a><span class='hs-definition'>checkMethodDef</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Decl</span> <span class='hs-conid'>L</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>P</span> <span class='hs-conid'>()</span>
<a name="line-733"></a><span class='hs-definition'>checkMethodDef</span> <span class='hs-layout'>(</span><span class='hs-conid'>PatBind</span> <span class='hs-keyword'>_</span> <span class='hs-layout'>(</span><span class='hs-conid'>PVar</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-conid'>()</span>
<a name="line-734"></a><span class='hs-definition'>checkMethodDef</span> <span class='hs-layout'>(</span><span class='hs-conid'>PatBind</span> <span class='hs-varid'>loc</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-735"></a> <span class='hs-varid'>fail</span> <span class='hs-str'>"illegal method definition"</span> <span class='hs-comment'>-- `atSrcLoc` loc</span>
<a name="line-736"></a><span class='hs-definition'>checkMethodDef</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-conid'>()</span>
<a name="line-737"></a>
<a name="line-738"></a><span class='hs-comment'>-----------------------------------------------------------------------------</span>
<a name="line-739"></a><span class='hs-comment'>-- Check that an identifier or symbol is unqualified.</span>
<a name="line-740"></a><span class='hs-comment'>-- For occasions when doing this in the grammar would cause conflicts.</span>
<a name="line-741"></a>
<a name="line-742"></a><a name="checkUnQual"></a><span class='hs-definition'>checkUnQual</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>QName</span> <span class='hs-conid'>L</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>P</span> <span class='hs-layout'>(</span><span class='hs-conid'>Name</span> <span class='hs-conid'>L</span><span class='hs-layout'>)</span>
<a name="line-743"></a><span class='hs-definition'>checkUnQual</span> <span class='hs-layout'>(</span><span class='hs-conid'>Qual</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fail</span> <span class='hs-str'>"Illegal qualified name"</span>
<a name="line-744"></a><span class='hs-definition'>checkUnQual</span> <span class='hs-layout'>(</span><span class='hs-conid'>UnQual</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-varid'>n</span>
<a name="line-745"></a><span class='hs-definition'>checkUnQual</span> <span class='hs-layout'>(</span><span class='hs-conid'>Special</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fail</span> <span class='hs-str'>"Illegal special name"</span>
<a name="line-746"></a>
<a name="line-747"></a><a name="checkEqNames"></a><span class='hs-comment'>-----------------------------------------------------------------------------</span>
<a name="line-748"></a><span class='hs-comment'>-- Check that two xml tag names are equal</span>
<a name="line-749"></a><span class='hs-definition'>checkEqNames</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>XName</span> <span class='hs-conid'>L</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>XName</span> <span class='hs-conid'>L</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>P</span> <span class='hs-layout'>(</span><span class='hs-conid'>XName</span> <span class='hs-conid'>L</span><span class='hs-layout'>)</span>
<a name="line-750"></a><span class='hs-definition'>checkEqNames</span> <span class='hs-varid'>n</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>XName</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>n1</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>XName</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>n2</span><span class='hs-layout'>)</span>
<a name="line-751"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>n1</span> <span class='hs-varop'>==</span> <span class='hs-varid'>n2</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-varid'>n</span>
<a name="line-752"></a><span class='hs-definition'>checkEqNames</span> <span class='hs-varid'>n</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>XDomName</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>d1</span> <span class='hs-varid'>n1</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>XDomName</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>d2</span> <span class='hs-varid'>n2</span><span class='hs-layout'>)</span>
<a name="line-753"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>n1</span> <span class='hs-varop'>==</span> <span class='hs-varid'>n2</span> <span class='hs-varop'>&&</span> <span class='hs-varid'>d1</span> <span class='hs-varop'>==</span> <span class='hs-varid'>d2</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-varid'>n</span>
<a name="line-754"></a><span class='hs-definition'>checkEqNames</span> <span class='hs-varid'>n</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fail</span> <span class='hs-varop'>$</span> <span class='hs-str'>"opening tag '"</span> <span class='hs-varop'>++</span> <span class='hs-varid'>showTag</span> <span class='hs-varid'>n</span> <span class='hs-varop'>++</span>
<a name="line-755"></a> <span class='hs-str'>"' does not match closing tag '"</span> <span class='hs-varop'>++</span> <span class='hs-varid'>showTag</span> <span class='hs-varid'>m</span> <span class='hs-varop'>++</span> <span class='hs-str'>"'"</span>
<a name="line-756"></a> <span class='hs-keyword'>where</span>
<a name="line-757"></a> <span class='hs-varid'>showTag</span> <span class='hs-layout'>(</span><span class='hs-conid'>XName</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>n</span>
<a name="line-758"></a> <span class='hs-varid'>showTag</span> <span class='hs-layout'>(</span><span class='hs-conid'>XDomName</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>d</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>d</span> <span class='hs-varop'>++</span> <span class='hs-str'>":"</span> <span class='hs-varop'>++</span> <span class='hs-varid'>n</span>
<a name="line-759"></a>
<a name="line-760"></a>
<a name="line-761"></a><span class='hs-comment'>-----------------------------------------------------------------------------</span>
<a name="line-762"></a><span class='hs-comment'>-- Miscellaneous utilities</span>
<a name="line-763"></a>
<a name="line-764"></a><a name="checkPrec"></a><span class='hs-definition'>checkPrec</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Integer</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>P</span> <span class='hs-conid'>Int</span>
<a name="line-765"></a><span class='hs-definition'>checkPrec</span> <span class='hs-varid'>i</span> <span class='hs-keyglyph'>|</span> <span class='hs-num'>0</span> <span class='hs-varop'><=</span> <span class='hs-varid'>i</span> <span class='hs-varop'>&&</span> <span class='hs-varid'>i</span> <span class='hs-varop'><=</span> <span class='hs-num'>9</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromInteger</span> <span class='hs-varid'>i</span><span class='hs-layout'>)</span>
<a name="line-766"></a><span class='hs-definition'>checkPrec</span> <span class='hs-varid'>i</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fail</span> <span class='hs-layout'>(</span><span class='hs-str'>"Illegal precedence "</span> <span class='hs-varop'>++</span> <span class='hs-varid'>show</span> <span class='hs-varid'>i</span><span class='hs-layout'>)</span>
<a name="line-767"></a>
<a name="line-768"></a><a name="mkRecConstrOrUpdate"></a><span class='hs-definition'>mkRecConstrOrUpdate</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PExp</span> <span class='hs-conid'>L</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>PFieldUpdate</span> <span class='hs-conid'>L</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>P</span> <span class='hs-layout'>(</span><span class='hs-conid'>PExp</span> <span class='hs-conid'>L</span><span class='hs-layout'>)</span>
<a name="line-769"></a><span class='hs-definition'>mkRecConstrOrUpdate</span> <span class='hs-layout'>(</span><span class='hs-conid'>Con</span> <span class='hs-varid'>l</span> <span class='hs-varid'>c</span><span class='hs-layout'>)</span> <span class='hs-varid'>fs</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>RecConstr</span> <span class='hs-varid'>l</span> <span class='hs-varid'>c</span> <span class='hs-varid'>fs</span><span class='hs-layout'>)</span>
<a name="line-770"></a><span class='hs-definition'>mkRecConstrOrUpdate</span> <span class='hs-varid'>e</span> <span class='hs-varid'>fs</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-keyword'>_</span><span class='hs-conop'>:</span><span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>RecUpdate</span> <span class='hs-layout'>(</span><span class='hs-varid'>ann</span> <span class='hs-varid'>e</span><span class='hs-layout'>)</span> <span class='hs-varid'>e</span> <span class='hs-varid'>fs</span><span class='hs-layout'>)</span>
<a name="line-771"></a><span class='hs-definition'>mkRecConstrOrUpdate</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fail</span> <span class='hs-str'>"Empty record update"</span>
<a name="line-772"></a>
<a name="line-773"></a><span class='hs-comment'>-----------------------------------------------------------------------------</span>
<a name="line-774"></a><span class='hs-comment'>-- Reverse a list of declarations, merging adjacent FunBinds of the</span>
<a name="line-775"></a><span class='hs-comment'>-- same name and checking that their arities match.</span>
<a name="line-776"></a>
<a name="line-777"></a><a name="checkRevDecls"></a><span class='hs-definition'>checkRevDecls</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Decl</span> <span class='hs-conid'>L</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>P</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Decl</span> <span class='hs-conid'>L</span><span class='hs-keyglyph'>]</span>
<a name="line-778"></a><span class='hs-definition'>checkRevDecls</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>mergeFunBinds</span> <span class='hs-conid'>[]</span>
<a name="line-779"></a> <span class='hs-keyword'>where</span>
<a name="line-780"></a> <span class='hs-varid'>mergeFunBinds</span> <span class='hs-varid'>revDs</span> <span class='hs-conid'>[]</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-varid'>revDs</span>
<a name="line-781"></a> <span class='hs-varid'>mergeFunBinds</span> <span class='hs-varid'>revDs</span> <span class='hs-layout'>(</span><span class='hs-conid'>FunBind</span> <span class='hs-varid'>l</span> <span class='hs-varid'>ms1</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>Match</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>name</span> <span class='hs-varid'>ps</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span><span class='hs-conop'>:</span><span class='hs-keyword'>_</span><span class='hs-layout'>)</span><span class='hs-conop'>:</span><span class='hs-varid'>ds1</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-782"></a> <span class='hs-varid'>mergeMatches</span> <span class='hs-varid'>ms1</span> <span class='hs-varid'>ds1</span> <span class='hs-varid'>l</span>
<a name="line-783"></a> <span class='hs-keyword'>where</span>
<a name="line-784"></a> <span class='hs-varid'>arity</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>length</span> <span class='hs-varid'>ps</span>
<a name="line-785"></a> <span class='hs-varid'>mergeMatches</span> <span class='hs-varid'>ms'</span> <span class='hs-layout'>(</span><span class='hs-conid'>FunBind</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>ms</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>Match</span> <span class='hs-varid'>loc</span> <span class='hs-varid'>name'</span> <span class='hs-varid'>ps'</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span><span class='hs-conop'>:</span><span class='hs-keyword'>_</span><span class='hs-layout'>)</span><span class='hs-conop'>:</span><span class='hs-varid'>ds</span><span class='hs-layout'>)</span> <span class='hs-varid'>l</span>
<a name="line-786"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>name'</span> <span class='hs-varop'>=~=</span> <span class='hs-varid'>name</span> <span class='hs-keyglyph'>=</span>
<a name="line-787"></a> <span class='hs-keyword'>if</span> <span class='hs-varid'>length</span> <span class='hs-varid'>ps'</span> <span class='hs-varop'>/=</span> <span class='hs-varid'>arity</span>
<a name="line-788"></a> <span class='hs-keyword'>then</span> <span class='hs-varid'>fail</span> <span class='hs-layout'>(</span><span class='hs-str'>"arity mismatch for '"</span> <span class='hs-varop'>++</span> <span class='hs-varid'>prettyPrint</span> <span class='hs-varid'>name</span> <span class='hs-varop'>++</span> <span class='hs-str'>"'"</span><span class='hs-layout'>)</span>
<a name="line-789"></a> <span class='hs-comment'>-- `atSrcLoc` loc</span>
<a name="line-790"></a> <span class='hs-keyword'>else</span> <span class='hs-varid'>mergeMatches</span> <span class='hs-layout'>(</span><span class='hs-varid'>ms</span><span class='hs-varop'>++</span><span class='hs-varid'>ms'</span><span class='hs-layout'>)</span> <span class='hs-varid'>ds</span> <span class='hs-layout'>(</span><span class='hs-varid'>loc</span> <span class='hs-varop'><++></span> <span class='hs-varid'>l</span><span class='hs-layout'>)</span>
<a name="line-791"></a> <span class='hs-varid'>mergeMatches</span> <span class='hs-varid'>ms'</span> <span class='hs-varid'>ds</span> <span class='hs-varid'>l</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>mergeFunBinds</span> <span class='hs-layout'>(</span><span class='hs-conid'>FunBind</span> <span class='hs-varid'>l</span> <span class='hs-varid'>ms'</span><span class='hs-conop'>:</span><span class='hs-varid'>revDs</span><span class='hs-layout'>)</span> <span class='hs-varid'>ds</span>
<a name="line-792"></a> <span class='hs-varid'>mergeFunBinds</span> <span class='hs-varid'>revDs</span> <span class='hs-layout'>(</span><span class='hs-conid'>FunBind</span> <span class='hs-varid'>l</span> <span class='hs-varid'>ims1</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>InfixMatch</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>name</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span><span class='hs-conop'>:</span><span class='hs-keyword'>_</span><span class='hs-layout'>)</span><span class='hs-conop'>:</span><span class='hs-varid'>ds1</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-793"></a> <span class='hs-varid'>mergeInfix</span> <span class='hs-varid'>ims1</span> <span class='hs-varid'>ds1</span> <span class='hs-varid'>l</span>
<a name="line-794"></a> <span class='hs-keyword'>where</span>
<a name="line-795"></a> <span class='hs-varid'>mergeInfix</span> <span class='hs-varid'>ims'</span> <span class='hs-layout'>(</span><span class='hs-conid'>FunBind</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>ims</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>InfixMatch</span> <span class='hs-varid'>loc</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>name'</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span><span class='hs-conop'>:</span><span class='hs-keyword'>_</span><span class='hs-layout'>)</span><span class='hs-conop'>:</span><span class='hs-varid'>ds</span><span class='hs-layout'>)</span> <span class='hs-varid'>l</span>
<a name="line-796"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>name'</span> <span class='hs-varop'>=~=</span> <span class='hs-varid'>name</span> <span class='hs-keyglyph'>=</span>
<a name="line-797"></a> <span class='hs-varid'>mergeInfix</span> <span class='hs-layout'>(</span><span class='hs-varid'>ims</span><span class='hs-varop'>++</span><span class='hs-varid'>ims'</span><span class='hs-layout'>)</span> <span class='hs-varid'>ds</span> <span class='hs-layout'>(</span><span class='hs-varid'>loc</span> <span class='hs-varop'><++></span> <span class='hs-varid'>l</span><span class='hs-layout'>)</span>
<a name="line-798"></a> <span class='hs-varid'>mergeInfix</span> <span class='hs-varid'>ms'</span> <span class='hs-varid'>ds</span> <span class='hs-varid'>l</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>mergeFunBinds</span> <span class='hs-layout'>(</span><span class='hs-conid'>FunBind</span> <span class='hs-varid'>l</span> <span class='hs-varid'>ms'</span><span class='hs-conop'>:</span><span class='hs-varid'>revDs</span><span class='hs-layout'>)</span> <span class='hs-varid'>ds</span>
<a name="line-799"></a> <span class='hs-varid'>mergeFunBinds</span> <span class='hs-varid'>revDs</span> <span class='hs-layout'>(</span><span class='hs-varid'>d</span><span class='hs-conop'>:</span><span class='hs-varid'>ds</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>mergeFunBinds</span> <span class='hs-layout'>(</span><span class='hs-varid'>d</span><span class='hs-conop'>:</span><span class='hs-varid'>revDs</span><span class='hs-layout'>)</span> <span class='hs-varid'>ds</span>
<a name="line-800"></a>
<a name="line-801"></a><a name="checkRevClsDecls"></a><span class='hs-definition'>checkRevClsDecls</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>ClassDecl</span> <span class='hs-conid'>L</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>P</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>ClassDecl</span> <span class='hs-conid'>L</span><span class='hs-keyglyph'>]</span>
<a name="line-802"></a><span class='hs-definition'>checkRevClsDecls</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>mergeClsFunBinds</span> <span class='hs-conid'>[]</span>
<a name="line-803"></a> <span class='hs-keyword'>where</span>
<a name="line-804"></a> <span class='hs-varid'>mergeClsFunBinds</span> <span class='hs-varid'>revDs</span> <span class='hs-conid'>[]</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-varid'>revDs</span>
<a name="line-805"></a> <span class='hs-varid'>mergeClsFunBinds</span> <span class='hs-varid'>revDs</span> <span class='hs-layout'>(</span><span class='hs-conid'>ClsDecl</span> <span class='hs-varid'>l</span> <span class='hs-layout'>(</span><span class='hs-conid'>FunBind</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>ms1</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>Match</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>name</span> <span class='hs-varid'>ps</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span><span class='hs-conop'>:</span><span class='hs-keyword'>_</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-conop'>:</span><span class='hs-varid'>ds1</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-806"></a> <span class='hs-varid'>mergeMatches</span> <span class='hs-varid'>ms1</span> <span class='hs-varid'>ds1</span> <span class='hs-varid'>l</span>
<a name="line-807"></a> <span class='hs-keyword'>where</span>
<a name="line-808"></a> <span class='hs-varid'>arity</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>length</span> <span class='hs-varid'>ps</span>
<a name="line-809"></a> <span class='hs-varid'>mergeMatches</span> <span class='hs-varid'>ms'</span> <span class='hs-layout'>(</span><span class='hs-conid'>ClsDecl</span> <span class='hs-keyword'>_</span> <span class='hs-layout'>(</span><span class='hs-conid'>FunBind</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>ms</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>Match</span> <span class='hs-varid'>loc</span> <span class='hs-varid'>name'</span> <span class='hs-varid'>ps'</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span><span class='hs-conop'>:</span><span class='hs-keyword'>_</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-conop'>:</span><span class='hs-varid'>ds</span><span class='hs-layout'>)</span> <span class='hs-varid'>l</span>
<a name="line-810"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>name'</span> <span class='hs-varop'>=~=</span> <span class='hs-varid'>name</span> <span class='hs-keyglyph'>=</span>
<a name="line-811"></a> <span class='hs-keyword'>if</span> <span class='hs-varid'>length</span> <span class='hs-varid'>ps'</span> <span class='hs-varop'>/=</span> <span class='hs-varid'>arity</span>
<a name="line-812"></a> <span class='hs-keyword'>then</span> <span class='hs-varid'>fail</span> <span class='hs-layout'>(</span><span class='hs-str'>"arity mismatch for '"</span> <span class='hs-varop'>++</span> <span class='hs-varid'>prettyPrint</span> <span class='hs-varid'>name</span> <span class='hs-varop'>++</span> <span class='hs-str'>"'"</span><span class='hs-layout'>)</span>
<a name="line-813"></a> <span class='hs-comment'>-- `atSrcLoc` loc</span>
<a name="line-814"></a> <span class='hs-keyword'>else</span> <span class='hs-varid'>mergeMatches</span> <span class='hs-layout'>(</span><span class='hs-varid'>ms</span><span class='hs-varop'>++</span><span class='hs-varid'>ms'</span><span class='hs-layout'>)</span> <span class='hs-varid'>ds</span> <span class='hs-layout'>(</span><span class='hs-varid'>loc</span> <span class='hs-varop'><++></span> <span class='hs-varid'>l</span><span class='hs-layout'>)</span>
<a name="line-815"></a> <span class='hs-varid'>mergeMatches</span> <span class='hs-varid'>ms'</span> <span class='hs-varid'>ds</span> <span class='hs-varid'>l</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>mergeClsFunBinds</span> <span class='hs-layout'>(</span><span class='hs-conid'>ClsDecl</span> <span class='hs-varid'>l</span> <span class='hs-layout'>(</span><span class='hs-conid'>FunBind</span> <span class='hs-varid'>l</span> <span class='hs-varid'>ms'</span><span class='hs-layout'>)</span><span class='hs-conop'>:</span><span class='hs-varid'>revDs</span><span class='hs-layout'>)</span> <span class='hs-varid'>ds</span>
<a name="line-816"></a> <span class='hs-varid'>mergeClsFunBinds</span> <span class='hs-varid'>revDs</span> <span class='hs-layout'>(</span><span class='hs-conid'>ClsDecl</span> <span class='hs-varid'>l</span> <span class='hs-layout'>(</span><span class='hs-conid'>FunBind</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>ims1</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>InfixMatch</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>name</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span><span class='hs-conop'>:</span><span class='hs-keyword'>_</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-conop'>:</span><span class='hs-varid'>ds1</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-817"></a> <span class='hs-varid'>mergeInfix</span> <span class='hs-varid'>ims1</span> <span class='hs-varid'>ds1</span> <span class='hs-varid'>l</span>
<a name="line-818"></a> <span class='hs-keyword'>where</span>
<a name="line-819"></a> <span class='hs-varid'>mergeInfix</span> <span class='hs-varid'>ims'</span> <span class='hs-layout'>(</span><span class='hs-conid'>ClsDecl</span> <span class='hs-keyword'>_</span> <span class='hs-layout'>(</span><span class='hs-conid'>FunBind</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>ims</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>InfixMatch</span> <span class='hs-varid'>loc</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>name'</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span><span class='hs-conop'>:</span><span class='hs-keyword'>_</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-conop'>:</span><span class='hs-varid'>ds</span><span class='hs-layout'>)</span> <span class='hs-varid'>l</span>
<a name="line-820"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>name'</span> <span class='hs-varop'>=~=</span> <span class='hs-varid'>name</span> <span class='hs-keyglyph'>=</span>
<a name="line-821"></a> <span class='hs-varid'>mergeInfix</span> <span class='hs-layout'>(</span><span class='hs-varid'>ims</span><span class='hs-varop'>++</span><span class='hs-varid'>ims'</span><span class='hs-layout'>)</span> <span class='hs-varid'>ds</span> <span class='hs-layout'>(</span><span class='hs-varid'>loc</span> <span class='hs-varop'><++></span> <span class='hs-varid'>l</span><span class='hs-layout'>)</span>
<a name="line-822"></a> <span class='hs-varid'>mergeInfix</span> <span class='hs-varid'>ms'</span> <span class='hs-varid'>ds</span> <span class='hs-varid'>l</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>mergeClsFunBinds</span> <span class='hs-layout'>(</span><span class='hs-conid'>ClsDecl</span> <span class='hs-varid'>l</span> <span class='hs-layout'>(</span><span class='hs-conid'>FunBind</span> <span class='hs-varid'>l</span> <span class='hs-varid'>ms'</span><span class='hs-layout'>)</span><span class='hs-conop'>:</span><span class='hs-varid'>revDs</span><span class='hs-layout'>)</span> <span class='hs-varid'>ds</span>
<a name="line-823"></a> <span class='hs-varid'>mergeClsFunBinds</span> <span class='hs-varid'>revDs</span> <span class='hs-layout'>(</span><span class='hs-varid'>d</span><span class='hs-conop'>:</span><span class='hs-varid'>ds</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>mergeClsFunBinds</span> <span class='hs-layout'>(</span><span class='hs-varid'>d</span><span class='hs-conop'>:</span><span class='hs-varid'>revDs</span><span class='hs-layout'>)</span> <span class='hs-varid'>ds</span>
<a name="line-824"></a>
<a name="line-825"></a><a name="checkRevInstDecls"></a><span class='hs-definition'>checkRevInstDecls</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>InstDecl</span> <span class='hs-conid'>L</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>P</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>InstDecl</span> <span class='hs-conid'>L</span><span class='hs-keyglyph'>]</span>
<a name="line-826"></a><span class='hs-definition'>checkRevInstDecls</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>mergeInstFunBinds</span> <span class='hs-conid'>[]</span>
<a name="line-827"></a> <span class='hs-keyword'>where</span>
<a name="line-828"></a> <span class='hs-varid'>mergeInstFunBinds</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>InstDecl</span> <span class='hs-conid'>L</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>InstDecl</span> <span class='hs-conid'>L</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>P</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>InstDecl</span> <span class='hs-conid'>L</span><span class='hs-keyglyph'>]</span>
<a name="line-829"></a> <span class='hs-varid'>mergeInstFunBinds</span> <span class='hs-varid'>revDs</span> <span class='hs-conid'>[]</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-varid'>revDs</span>
<a name="line-830"></a> <span class='hs-varid'>mergeInstFunBinds</span> <span class='hs-varid'>revDs</span> <span class='hs-layout'>(</span><span class='hs-conid'>InsDecl</span> <span class='hs-varid'>l</span> <span class='hs-layout'>(</span><span class='hs-conid'>FunBind</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>ms1</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>Match</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>name</span> <span class='hs-varid'>ps</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span><span class='hs-conop'>:</span><span class='hs-keyword'>_</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-conop'>:</span><span class='hs-varid'>ds1</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-831"></a> <span class='hs-varid'>mergeMatches</span> <span class='hs-varid'>ms1</span> <span class='hs-varid'>ds1</span> <span class='hs-varid'>l</span>
<a name="line-832"></a> <span class='hs-keyword'>where</span>
<a name="line-833"></a> <span class='hs-varid'>arity</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>length</span> <span class='hs-varid'>ps</span>
<a name="line-834"></a> <span class='hs-varid'>mergeMatches</span> <span class='hs-varid'>ms'</span> <span class='hs-layout'>(</span><span class='hs-conid'>InsDecl</span> <span class='hs-keyword'>_</span> <span class='hs-layout'>(</span><span class='hs-conid'>FunBind</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>ms</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>Match</span> <span class='hs-varid'>loc</span> <span class='hs-varid'>name'</span> <span class='hs-varid'>ps'</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span><span class='hs-conop'>:</span><span class='hs-keyword'>_</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-conop'>:</span><span class='hs-varid'>ds</span><span class='hs-layout'>)</span> <span class='hs-varid'>l</span>
<a name="line-835"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>name'</span> <span class='hs-varop'>=~=</span> <span class='hs-varid'>name</span> <span class='hs-keyglyph'>=</span>
<a name="line-836"></a> <span class='hs-keyword'>if</span> <span class='hs-varid'>length</span> <span class='hs-varid'>ps'</span> <span class='hs-varop'>/=</span> <span class='hs-varid'>arity</span>
<a name="line-837"></a> <span class='hs-keyword'>then</span> <span class='hs-varid'>fail</span> <span class='hs-layout'>(</span><span class='hs-str'>"arity mismatch for '"</span> <span class='hs-varop'>++</span> <span class='hs-varid'>prettyPrint</span> <span class='hs-varid'>name</span> <span class='hs-varop'>++</span> <span class='hs-str'>"'"</span><span class='hs-layout'>)</span>
<a name="line-838"></a> <span class='hs-comment'>-- `atSrcLoc` loc</span>
<a name="line-839"></a> <span class='hs-keyword'>else</span> <span class='hs-varid'>mergeMatches</span> <span class='hs-layout'>(</span><span class='hs-varid'>ms</span><span class='hs-varop'>++</span><span class='hs-varid'>ms'</span><span class='hs-layout'>)</span> <span class='hs-varid'>ds</span> <span class='hs-layout'>(</span><span class='hs-varid'>loc</span> <span class='hs-varop'><++></span> <span class='hs-varid'>l</span><span class='hs-layout'>)</span>
<a name="line-840"></a> <span class='hs-varid'>mergeMatches</span> <span class='hs-varid'>ms'</span> <span class='hs-varid'>ds</span> <span class='hs-varid'>l</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>mergeInstFunBinds</span> <span class='hs-layout'>(</span><span class='hs-conid'>InsDecl</span> <span class='hs-varid'>l</span> <span class='hs-layout'>(</span><span class='hs-conid'>FunBind</span> <span class='hs-varid'>l</span> <span class='hs-varid'>ms'</span><span class='hs-layout'>)</span><span class='hs-conop'>:</span><span class='hs-varid'>revDs</span><span class='hs-layout'>)</span> <span class='hs-varid'>ds</span>
<a name="line-841"></a> <span class='hs-varid'>mergeInstFunBinds</span> <span class='hs-varid'>revDs</span> <span class='hs-layout'>(</span><span class='hs-conid'>InsDecl</span> <span class='hs-varid'>l</span> <span class='hs-layout'>(</span><span class='hs-conid'>FunBind</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>ims1</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>InfixMatch</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>name</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span><span class='hs-conop'>:</span><span class='hs-keyword'>_</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-conop'>:</span><span class='hs-varid'>ds1</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-842"></a> <span class='hs-varid'>mergeInfix</span> <span class='hs-varid'>ims1</span> <span class='hs-varid'>ds1</span> <span class='hs-varid'>l</span>
<a name="line-843"></a> <span class='hs-keyword'>where</span>
<a name="line-844"></a> <span class='hs-varid'>mergeInfix</span> <span class='hs-varid'>ims'</span> <span class='hs-layout'>(</span><span class='hs-conid'>InsDecl</span> <span class='hs-keyword'>_</span> <span class='hs-layout'>(</span><span class='hs-conid'>FunBind</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>ims</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>InfixMatch</span> <span class='hs-varid'>loc</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>name'</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span><span class='hs-conop'>:</span><span class='hs-keyword'>_</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-conop'>:</span><span class='hs-varid'>ds</span><span class='hs-layout'>)</span> <span class='hs-varid'>l</span>
<a name="line-845"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>name'</span> <span class='hs-varop'>=~=</span> <span class='hs-varid'>name</span> <span class='hs-keyglyph'>=</span>
<a name="line-846"></a> <span class='hs-varid'>mergeInfix</span> <span class='hs-layout'>(</span><span class='hs-varid'>ims</span><span class='hs-varop'>++</span><span class='hs-varid'>ims'</span><span class='hs-layout'>)</span> <span class='hs-varid'>ds</span> <span class='hs-layout'>(</span><span class='hs-varid'>loc</span> <span class='hs-varop'><++></span> <span class='hs-varid'>l</span><span class='hs-layout'>)</span>
<a name="line-847"></a> <span class='hs-varid'>mergeInfix</span> <span class='hs-varid'>ms'</span> <span class='hs-varid'>ds</span> <span class='hs-varid'>l</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>mergeInstFunBinds</span> <span class='hs-layout'>(</span><span class='hs-conid'>InsDecl</span> <span class='hs-varid'>l</span> <span class='hs-layout'>(</span><span class='hs-conid'>FunBind</span> <span class='hs-varid'>l</span> <span class='hs-varid'>ms'</span><span class='hs-layout'>)</span><span class='hs-conop'>:</span><span class='hs-varid'>revDs</span><span class='hs-layout'>)</span> <span class='hs-varid'>ds</span>
<a name="line-848"></a> <span class='hs-varid'>mergeInstFunBinds</span> <span class='hs-varid'>revDs</span> <span class='hs-layout'>(</span><span class='hs-varid'>d</span><span class='hs-conop'>:</span><span class='hs-varid'>ds</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>mergeInstFunBinds</span> <span class='hs-layout'>(</span><span class='hs-varid'>d</span><span class='hs-conop'>:</span><span class='hs-varid'>revDs</span><span class='hs-layout'>)</span> <span class='hs-varid'>ds</span>
<a name="line-849"></a>
<a name="line-850"></a><span class='hs-comment'>----------------------------------------------------------------</span>
<a name="line-851"></a><span class='hs-comment'>-- Check that newtype declarations have</span>
<a name="line-852"></a><span class='hs-comment'>-- the right number (1) of constructors</span>
<a name="line-853"></a>
<a name="line-854"></a><a name="checkDataOrNew"></a><span class='hs-definition'>checkDataOrNew</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>DataOrNew</span> <span class='hs-conid'>L</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>QualConDecl</span> <span class='hs-conid'>L</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>P</span> <span class='hs-conid'>()</span>
<a name="line-855"></a><span class='hs-definition'>checkDataOrNew</span> <span class='hs-layout'>(</span><span class='hs-conid'>DataType</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-conid'>()</span>
<a name="line-856"></a><span class='hs-definition'>checkDataOrNew</span> <span class='hs-layout'>(</span><span class='hs-conid'>NewType</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>QualConDecl</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>x</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>cX</span> <span class='hs-varid'>x</span> <span class='hs-varop'>>></span> <span class='hs-varid'>return</span> <span class='hs-conid'>()</span>
<a name="line-857"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>cX</span> <span class='hs-layout'>(</span><span class='hs-conid'>ConDecl</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>[</span><span class='hs-keyword'>_</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-conid'>()</span>
<a name="line-858"></a> <span class='hs-varid'>cX</span> <span class='hs-layout'>(</span><span class='hs-conid'>RecDecl</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>[</span><span class='hs-keyword'>_</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-conid'>()</span>
<a name="line-859"></a> <span class='hs-varid'>cX</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fail</span> <span class='hs-str'>"newtype declaration constructor must have exactly one parameter."</span>
<a name="line-860"></a><span class='hs-definition'>checkDataOrNew</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fail</span> <span class='hs-str'>"newtype declaration must have exactly one constructor."</span>
<a name="line-861"></a>
<a name="line-862"></a><a name="checkDataOrNewG"></a><span class='hs-definition'>checkDataOrNewG</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>DataOrNew</span> <span class='hs-conid'>L</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>GadtDecl</span> <span class='hs-conid'>L</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>P</span> <span class='hs-conid'>()</span>
<a name="line-863"></a><span class='hs-definition'>checkDataOrNewG</span> <span class='hs-layout'>(</span><span class='hs-conid'>DataType</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-conid'>()</span>
<a name="line-864"></a><span class='hs-definition'>checkDataOrNewG</span> <span class='hs-layout'>(</span><span class='hs-conid'>NewType</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>x</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-conid'>()</span>
<a name="line-865"></a><span class='hs-definition'>checkDataOrNewG</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fail</span> <span class='hs-str'>"newtype declaration must have exactly one constructor."</span>
<a name="line-866"></a>
<a name="line-867"></a><a name="checkSimpleType"></a><span class='hs-definition'>checkSimpleType</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PType</span> <span class='hs-conid'>L</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>P</span> <span class='hs-layout'>(</span><span class='hs-conid'>DeclHead</span> <span class='hs-conid'>L</span><span class='hs-layout'>)</span>
<a name="line-868"></a><span class='hs-definition'>checkSimpleType</span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>checkSimple</span> <span class='hs-str'>"test"</span> <span class='hs-varid'>t</span> <span class='hs-conid'>[]</span>
<a name="line-869"></a>
<a name="line-870"></a><span class='hs-comment'>---------------------------------------</span>
<a name="line-871"></a><span class='hs-comment'>-- Check actual types</span>
<a name="line-872"></a>
<a name="line-873"></a><a name="checkType"></a><span class='hs-definition'>checkType</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PType</span> <span class='hs-conid'>L</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>P</span> <span class='hs-layout'>(</span><span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>Type</span> <span class='hs-conid'>L</span><span class='hs-layout'>)</span>
<a name="line-874"></a><span class='hs-definition'>checkType</span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>checkT</span> <span class='hs-varid'>t</span> <span class='hs-conid'>False</span>
<a name="line-875"></a>
<a name="line-876"></a><a name="checkT"></a><span class='hs-definition'>checkT</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PType</span> <span class='hs-conid'>L</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Bool</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>P</span> <span class='hs-layout'>(</span><span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>Type</span> <span class='hs-conid'>L</span><span class='hs-layout'>)</span>
<a name="line-877"></a><span class='hs-definition'>checkT</span> <span class='hs-varid'>t</span> <span class='hs-varid'>simple</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>t</span> <span class='hs-keyword'>of</span>
<a name="line-878"></a> <span class='hs-conid'>TyForall</span> <span class='hs-varid'>l</span> <span class='hs-varid'>tvs</span><span class='hs-keyglyph'>@</span><span class='hs-conid'>Nothing</span> <span class='hs-varid'>cs</span> <span class='hs-varid'>pt</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-879"></a> <span class='hs-varid'>when</span> <span class='hs-layout'>(</span><span class='hs-varid'>simple</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-varid'>checkEnabled</span> <span class='hs-conid'>ExplicitForall</span>
<a name="line-880"></a> <span class='hs-varid'>ctxt</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>checkContext</span> <span class='hs-varid'>cs</span>
<a name="line-881"></a> <span class='hs-varid'>check1Type</span> <span class='hs-varid'>pt</span> <span class='hs-layout'>(</span><span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>TyForall</span> <span class='hs-varid'>l</span> <span class='hs-conid'>Nothing</span> <span class='hs-varid'>ctxt</span><span class='hs-layout'>)</span>
<a name="line-882"></a> <span class='hs-conid'>TyForall</span> <span class='hs-varid'>l</span> <span class='hs-varid'>tvs</span> <span class='hs-varid'>cs</span> <span class='hs-varid'>pt</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-883"></a> <span class='hs-varid'>checkEnabled</span> <span class='hs-conid'>ExplicitForall</span>
<a name="line-884"></a> <span class='hs-varid'>ctxt</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>checkContext</span> <span class='hs-varid'>cs</span>
<a name="line-885"></a> <span class='hs-varid'>check1Type</span> <span class='hs-varid'>pt</span> <span class='hs-layout'>(</span><span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>TyForall</span> <span class='hs-varid'>l</span> <span class='hs-varid'>tvs</span> <span class='hs-varid'>ctxt</span><span class='hs-layout'>)</span>
<a name="line-886"></a> <span class='hs-conid'>TyFun</span> <span class='hs-varid'>l</span> <span class='hs-varid'>at</span> <span class='hs-varid'>rt</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>check2Types</span> <span class='hs-varid'>at</span> <span class='hs-varid'>rt</span> <span class='hs-layout'>(</span><span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>TyFun</span> <span class='hs-varid'>l</span><span class='hs-layout'>)</span>
<a name="line-887"></a> <span class='hs-conid'>TyTuple</span> <span class='hs-varid'>l</span> <span class='hs-varid'>b</span> <span class='hs-varid'>pts</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>checkTypes</span> <span class='hs-varid'>pts</span> <span class='hs-varop'>>>=</span> <span class='hs-varid'>return</span> <span class='hs-varop'>.</span> <span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>TyTuple</span> <span class='hs-varid'>l</span> <span class='hs-varid'>b</span>
<a name="line-888"></a> <span class='hs-conid'>TyList</span> <span class='hs-varid'>l</span> <span class='hs-varid'>pt</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>check1Type</span> <span class='hs-varid'>pt</span> <span class='hs-layout'>(</span><span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>TyList</span> <span class='hs-varid'>l</span><span class='hs-layout'>)</span>
<a name="line-889"></a> <span class='hs-conid'>TyApp</span> <span class='hs-varid'>l</span> <span class='hs-varid'>ft</span> <span class='hs-varid'>at</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>check2Types</span> <span class='hs-varid'>ft</span> <span class='hs-varid'>at</span> <span class='hs-layout'>(</span><span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>TyApp</span> <span class='hs-varid'>l</span><span class='hs-layout'>)</span>
<a name="line-890"></a> <span class='hs-conid'>TyVar</span> <span class='hs-varid'>l</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>TyVar</span> <span class='hs-varid'>l</span> <span class='hs-varid'>n</span>
<a name="line-891"></a> <span class='hs-conid'>TyCon</span> <span class='hs-varid'>l</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-892"></a> <span class='hs-varid'>when</span> <span class='hs-layout'>(</span><span class='hs-varid'>isSymbol</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-varid'>checkEnabled</span> <span class='hs-conid'>TypeOperators</span>
<a name="line-893"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>TyCon</span> <span class='hs-varid'>l</span> <span class='hs-varid'>n</span>
<a name="line-894"></a> <span class='hs-conid'>TyParen</span> <span class='hs-varid'>l</span> <span class='hs-varid'>pt</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>check1Type</span> <span class='hs-varid'>pt</span> <span class='hs-layout'>(</span><span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>TyParen</span> <span class='hs-varid'>l</span><span class='hs-layout'>)</span>
<a name="line-895"></a> <span class='hs-comment'>-- Here we know that t will be used as an actual type (and not a data constructor)</span>
<a name="line-896"></a> <span class='hs-comment'>-- so we can check that TypeOperators are enabled.</span>
<a name="line-897"></a> <span class='hs-conid'>TyInfix</span> <span class='hs-varid'>l</span> <span class='hs-varid'>at</span> <span class='hs-varid'>op</span> <span class='hs-varid'>bt</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>checkEnabled</span> <span class='hs-conid'>TypeOperators</span> <span class='hs-varop'>>></span> <span class='hs-varid'>check2Types</span> <span class='hs-varid'>at</span> <span class='hs-varid'>bt</span> <span class='hs-layout'>(</span><span class='hs-varid'>flip</span> <span class='hs-layout'>(</span><span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>TyInfix</span> <span class='hs-varid'>l</span><span class='hs-layout'>)</span> <span class='hs-varid'>op</span><span class='hs-layout'>)</span>
<a name="line-898"></a> <span class='hs-conid'>TyKind</span> <span class='hs-varid'>l</span> <span class='hs-varid'>pt</span> <span class='hs-varid'>k</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>check1Type</span> <span class='hs-varid'>pt</span> <span class='hs-layout'>(</span><span class='hs-varid'>flip</span> <span class='hs-layout'>(</span><span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>TyKind</span> <span class='hs-varid'>l</span><span class='hs-layout'>)</span> <span class='hs-varid'>k</span><span class='hs-layout'>)</span>
<a name="line-899"></a>
<a name="line-900"></a> <span class='hs-comment'>-- TyPred cannot be a valid type</span>
<a name="line-901"></a> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>fail</span> <span class='hs-varop'>$</span> <span class='hs-str'>"Parse error in type: "</span> <span class='hs-varop'>++</span> <span class='hs-varid'>prettyPrint</span> <span class='hs-varid'>t</span>
<a name="line-902"></a>
<a name="line-903"></a><a name="check1Type"></a><span class='hs-definition'>check1Type</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PType</span> <span class='hs-conid'>L</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>Type</span> <span class='hs-conid'>L</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>Type</span> <span class='hs-conid'>L</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>P</span> <span class='hs-layout'>(</span><span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>Type</span> <span class='hs-conid'>L</span><span class='hs-layout'>)</span>
<a name="line-904"></a><span class='hs-definition'>check1Type</span> <span class='hs-varid'>pt</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>checkT</span> <span class='hs-varid'>pt</span> <span class='hs-conid'>True</span> <span class='hs-varop'>>>=</span> <span class='hs-varid'>return</span> <span class='hs-varop'>.</span> <span class='hs-varid'>f</span>
<a name="line-905"></a>
<a name="line-906"></a><a name="check2Types"></a><span class='hs-definition'>check2Types</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PType</span> <span class='hs-conid'>L</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>PType</span> <span class='hs-conid'>L</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>Type</span> <span class='hs-conid'>L</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>Type</span> <span class='hs-conid'>L</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>Type</span> <span class='hs-conid'>L</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>P</span> <span class='hs-layout'>(</span><span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>Type</span> <span class='hs-conid'>L</span><span class='hs-layout'>)</span>
<a name="line-907"></a><span class='hs-definition'>check2Types</span> <span class='hs-varid'>at</span> <span class='hs-varid'>bt</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>checkT</span> <span class='hs-varid'>at</span> <span class='hs-conid'>True</span> <span class='hs-varop'>>>=</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>checkT</span> <span class='hs-varid'>bt</span> <span class='hs-conid'>True</span> <span class='hs-varop'>>>=</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>b</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>f</span> <span class='hs-varid'>a</span> <span class='hs-varid'>b</span><span class='hs-layout'>)</span>
<a name="line-908"></a>
<a name="line-909"></a><a name="checkTypes"></a><span class='hs-definition'>checkTypes</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>PType</span> <span class='hs-conid'>L</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>P</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>Type</span> <span class='hs-conid'>L</span><span class='hs-keyglyph'>]</span>
<a name="line-910"></a><span class='hs-definition'>checkTypes</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>mapM</span> <span class='hs-layout'>(</span><span class='hs-varid'>flip</span> <span class='hs-varid'>checkT</span> <span class='hs-conid'>True</span><span class='hs-layout'>)</span>
<a name="line-911"></a>
<a name="line-912"></a><span class='hs-comment'>---------------------------------------</span>
<a name="line-913"></a><span class='hs-comment'>-- Converting a complete page</span>
<a name="line-914"></a>
<a name="line-915"></a><a name="checkPageModule"></a><span class='hs-definition'>checkPageModule</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PExp</span> <span class='hs-conid'>L</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>[</span><span class='hs-conid'>ModulePragma</span> <span class='hs-conid'>L</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>,</span><span class='hs-keyglyph'>[</span><span class='hs-conid'>S</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>,</span><span class='hs-conid'>L</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>P</span> <span class='hs-layout'>(</span><span class='hs-conid'>Module</span> <span class='hs-conid'>L</span><span class='hs-layout'>)</span>
<a name="line-916"></a><span class='hs-definition'>checkPageModule</span> <span class='hs-varid'>xml</span> <span class='hs-layout'>(</span><span class='hs-varid'>os</span><span class='hs-layout'>,</span><span class='hs-varid'>ss</span><span class='hs-layout'>,</span><span class='hs-varid'>inf</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-917"></a> <span class='hs-varid'>mod</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getModuleName</span>
<a name="line-918"></a> <span class='hs-varid'>xml</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>checkExpr</span> <span class='hs-varid'>xml</span>
<a name="line-919"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>xml</span> <span class='hs-keyword'>of</span>
<a name="line-920"></a> <span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>XTag</span> <span class='hs-varid'>l</span> <span class='hs-varid'>xn</span> <span class='hs-varid'>ats</span> <span class='hs-varid'>mattr</span> <span class='hs-varid'>cs</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>XmlPage</span> <span class='hs-layout'>(</span><span class='hs-varid'>inf</span><span class='hs-varop'><++></span><span class='hs-varid'>l</span><span class='hs-varop'><**</span><span class='hs-layout'>(</span><span class='hs-varid'>srcInfoPoints</span> <span class='hs-varid'>l</span> <span class='hs-varop'>++</span> <span class='hs-varid'>ss</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>ModuleName</span> <span class='hs-varid'>l</span> <span class='hs-varid'>mod</span><span class='hs-layout'>)</span> <span class='hs-varid'>os</span> <span class='hs-varid'>xn</span> <span class='hs-varid'>ats</span> <span class='hs-varid'>mattr</span> <span class='hs-varid'>cs</span>
<a name="line-921"></a> <span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>XETag</span> <span class='hs-varid'>l</span> <span class='hs-varid'>xn</span> <span class='hs-varid'>ats</span> <span class='hs-varid'>mattr</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>XmlPage</span> <span class='hs-layout'>(</span><span class='hs-varid'>inf</span><span class='hs-varop'><++></span><span class='hs-varid'>l</span><span class='hs-varop'><**</span><span class='hs-layout'>(</span><span class='hs-varid'>srcInfoPoints</span> <span class='hs-varid'>l</span> <span class='hs-varop'>++</span> <span class='hs-varid'>ss</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>ModuleName</span> <span class='hs-varid'>l</span> <span class='hs-varid'>mod</span><span class='hs-layout'>)</span> <span class='hs-varid'>os</span> <span class='hs-varid'>xn</span> <span class='hs-varid'>ats</span> <span class='hs-varid'>mattr</span> <span class='hs-conid'>[]</span>
<a name="line-922"></a>
<a name="line-923"></a><a name="checkHybridModule"></a><span class='hs-definition'>checkHybridModule</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PExp</span> <span class='hs-conid'>L</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Module</span> <span class='hs-conid'>L</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>S</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>S</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>P</span> <span class='hs-layout'>(</span><span class='hs-conid'>Module</span> <span class='hs-conid'>L</span><span class='hs-layout'>)</span>
<a name="line-924"></a><span class='hs-definition'>checkHybridModule</span> <span class='hs-varid'>xml</span> <span class='hs-layout'>(</span><span class='hs-conid'>Module</span> <span class='hs-varid'>inf</span> <span class='hs-varid'>mh</span> <span class='hs-varid'>os</span> <span class='hs-varid'>is</span> <span class='hs-varid'>ds</span><span class='hs-layout'>)</span> <span class='hs-varid'>s1</span> <span class='hs-varid'>s2</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-925"></a> <span class='hs-varid'>xml</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>checkExpr</span> <span class='hs-varid'>xml</span>
<a name="line-926"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>xml</span> <span class='hs-keyword'>of</span>
<a name="line-927"></a> <span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>XTag</span> <span class='hs-varid'>l</span> <span class='hs-varid'>xn</span> <span class='hs-varid'>ats</span> <span class='hs-varid'>mattr</span> <span class='hs-varid'>cs</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>XmlHybrid</span> <span class='hs-layout'>(</span><span class='hs-varid'>inf</span><span class='hs-varop'><++></span><span class='hs-varid'>l</span><span class='hs-varop'><**</span><span class='hs-layout'>(</span><span class='hs-varid'>s1</span> <span class='hs-conop'>:</span> <span class='hs-varid'>srcInfoPoints</span> <span class='hs-varid'>inf</span> <span class='hs-varop'>++</span> <span class='hs-varid'>s2</span> <span class='hs-conop'>:</span> <span class='hs-varid'>srcInfoPoints</span> <span class='hs-varid'>l</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-928"></a> <span class='hs-varid'>mh</span> <span class='hs-varid'>os</span> <span class='hs-varid'>is</span> <span class='hs-varid'>ds</span> <span class='hs-varid'>xn</span> <span class='hs-varid'>ats</span> <span class='hs-varid'>mattr</span> <span class='hs-varid'>cs</span>
<a name="line-929"></a> <span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-conid'>XETag</span> <span class='hs-varid'>l</span> <span class='hs-varid'>xn</span> <span class='hs-varid'>ats</span> <span class='hs-varid'>mattr</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>XmlHybrid</span> <span class='hs-layout'>(</span><span class='hs-varid'>inf</span><span class='hs-varop'><++></span><span class='hs-varid'>l</span><span class='hs-varop'><**</span><span class='hs-layout'>(</span><span class='hs-varid'>s1</span> <span class='hs-conop'>:</span> <span class='hs-varid'>srcInfoPoints</span> <span class='hs-varid'>inf</span> <span class='hs-varop'>++</span> <span class='hs-varid'>s2</span> <span class='hs-conop'>:</span> <span class='hs-varid'>srcInfoPoints</span> <span class='hs-varid'>l</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-930"></a> <span class='hs-varid'>mh</span> <span class='hs-varid'>os</span> <span class='hs-varid'>is</span> <span class='hs-varid'>ds</span> <span class='hs-varid'>xn</span> <span class='hs-varid'>ats</span> <span class='hs-varid'>mattr</span> <span class='hs-conid'>[]</span>
<a name="line-931"></a>
<a name="line-932"></a><span class='hs-comment'>---------------------------------------</span>
<a name="line-933"></a><span class='hs-comment'>-- Handle dash-identifiers</span>
<a name="line-934"></a>
<a name="line-935"></a><a name="mkDVar"></a><span class='hs-definition'>mkDVar</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>String</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span>
<a name="line-936"></a><span class='hs-definition'>mkDVar</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>concat</span> <span class='hs-varop'>.</span> <span class='hs-varid'>intersperse</span> <span class='hs-str'>"-"</span>
<a name="line-937"></a>
<a name="line-938"></a><span class='hs-comment'>---------------------------------------</span>
<a name="line-939"></a><span class='hs-comment'>-- Combine adjacent for-alls. NO!</span>
<a name="line-940"></a><span class='hs-comment'>--</span>
<a name="line-941"></a><span class='hs-comment'>-- A valid type must have one for-all at the top of the type, or of the fn arg types</span>
<a name="line-942"></a>
<a name="line-943"></a><a name="mkTyForall"></a><span class='hs-definition'>mkTyForall</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>L</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Maybe</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>TyVarBind</span> <span class='hs-conid'>L</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Maybe</span> <span class='hs-layout'>(</span><span class='hs-conid'>PContext</span> <span class='hs-conid'>L</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>PType</span> <span class='hs-conid'>L</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>PType</span> <span class='hs-conid'>L</span>
<a name="line-944"></a><span class='hs-definition'>mkTyForall</span> <span class='hs-varid'>l</span> <span class='hs-varid'>mtvs</span> <span class='hs-varid'>ctxt</span> <span class='hs-varid'>ty</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>TyForall</span> <span class='hs-varid'>l</span> <span class='hs-varid'>mtvs</span> <span class='hs-varid'>ctxt</span> <span class='hs-varid'>ty</span>
</pre></body>
</html>
