<?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/Build.hs</title> <link type='text/css' rel='stylesheet' href='hscolour.css' /> </head> <body> <pre><a name="line-1"></a><span class='hs-comment'>-----------------------------------------------------------------------------</span> <a name="line-2"></a><span class='hs-comment'>-- |</span> <a name="line-3"></a><span class='hs-comment'>-- Module : Language.Haskell.Exts.Build</span> <a name="line-4"></a><span class='hs-comment'>-- Copyright : (c) The GHC Team, 1997-2000,</span> <a name="line-5"></a><span class='hs-comment'>-- (c) Niklas Broberg 2004</span> <a name="line-6"></a><span class='hs-comment'>-- License : BSD-style (see the file LICENSE.txt)</span> <a name="line-7"></a><span class='hs-comment'>--</span> <a name="line-8"></a><span class='hs-comment'>-- Maintainer : Niklas Broberg, d00nibro@chalmers.se</span> <a name="line-9"></a><span class='hs-comment'>-- Stability : experimental</span> <a name="line-10"></a><span class='hs-comment'>-- Portability : portable</span> <a name="line-11"></a><span class='hs-comment'>--</span> <a name="line-12"></a><span class='hs-comment'>-- This module contains combinators to use when building</span> <a name="line-13"></a><span class='hs-comment'>-- Haskell source trees programmatically, as opposed to</span> <a name="line-14"></a><span class='hs-comment'>-- parsing them from a string. The contents here are quite</span> <a name="line-15"></a><span class='hs-comment'>-- experimental and will likely receive a lot of attention</span> <a name="line-16"></a><span class='hs-comment'>-- when the rest has stabilised.</span> <a name="line-17"></a><span class='hs-comment'>--</span> <a name="line-18"></a><span class='hs-comment'>-----------------------------------------------------------------------------</span> <a name="line-19"></a> <a name="line-20"></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'>Build</span> <span class='hs-layout'>(</span> <a name="line-21"></a> <a name="line-22"></a> <span class='hs-comment'>-- * Syntax building functions</span> <a name="line-23"></a> <span class='hs-varid'>name</span><span class='hs-layout'>,</span> <span class='hs-comment'>-- :: String -> Name</span> <a name="line-24"></a> <span class='hs-varid'>sym</span><span class='hs-layout'>,</span> <span class='hs-comment'>-- :: String -> Name</span> <a name="line-25"></a> <span class='hs-varid'>var</span><span class='hs-layout'>,</span> <span class='hs-comment'>-- :: Name -> Exp</span> <a name="line-26"></a> <span class='hs-varid'>op</span><span class='hs-layout'>,</span> <span class='hs-comment'>-- :: Name -> QOp</span> <a name="line-27"></a> <span class='hs-varid'>qvar</span><span class='hs-layout'>,</span> <span class='hs-comment'>-- :: Module -> Name -> Exp</span> <a name="line-28"></a> <span class='hs-varid'>pvar</span><span class='hs-layout'>,</span> <span class='hs-comment'>-- :: Name -> Pat</span> <a name="line-29"></a> <span class='hs-varid'>app</span><span class='hs-layout'>,</span> <span class='hs-comment'>-- :: Exp -> Exp -> Exp</span> <a name="line-30"></a> <span class='hs-varid'>infixApp</span><span class='hs-layout'>,</span> <span class='hs-comment'>-- :: Exp -> QOp -> Exp -> Exp</span> <a name="line-31"></a> <span class='hs-varid'>appFun</span><span class='hs-layout'>,</span> <span class='hs-comment'>-- :: Exp -> [Exp] -> Exp</span> <a name="line-32"></a> <span class='hs-varid'>pApp</span><span class='hs-layout'>,</span> <span class='hs-comment'>-- :: Name -> [Pat] -> Pat</span> <a name="line-33"></a> <span class='hs-varid'>tuple</span><span class='hs-layout'>,</span> <span class='hs-comment'>-- :: [Exp] -> Exp</span> <a name="line-34"></a> <span class='hs-varid'>pTuple</span><span class='hs-layout'>,</span> <span class='hs-comment'>-- :: [Pat] -> Pat</span> <a name="line-35"></a> <span class='hs-varid'>varTuple</span><span class='hs-layout'>,</span> <span class='hs-comment'>-- :: [Name] -> Exp</span> <a name="line-36"></a> <span class='hs-varid'>pvarTuple</span><span class='hs-layout'>,</span> <span class='hs-comment'>-- :: [Name] -> Pat</span> <a name="line-37"></a> <span class='hs-varid'>function</span><span class='hs-layout'>,</span> <span class='hs-comment'>-- :: String -> Exp</span> <a name="line-38"></a> <span class='hs-varid'>strE</span><span class='hs-layout'>,</span> <span class='hs-comment'>-- :: String -> Exp</span> <a name="line-39"></a> <span class='hs-varid'>charE</span><span class='hs-layout'>,</span> <span class='hs-comment'>-- :: Char -> Exp</span> <a name="line-40"></a> <span class='hs-varid'>intE</span><span class='hs-layout'>,</span> <span class='hs-comment'>-- :: Integer -> Exp</span> <a name="line-41"></a> <span class='hs-varid'>strP</span><span class='hs-layout'>,</span> <span class='hs-comment'>-- :: String -> Pat</span> <a name="line-42"></a> <span class='hs-varid'>charP</span><span class='hs-layout'>,</span> <span class='hs-comment'>-- :: Char -> Pat</span> <a name="line-43"></a> <span class='hs-varid'>intP</span><span class='hs-layout'>,</span> <span class='hs-comment'>-- :: Integer -> Pat</span> <a name="line-44"></a> <span class='hs-varid'>doE</span><span class='hs-layout'>,</span> <span class='hs-comment'>-- :: [Stmt] -> Exp</span> <a name="line-45"></a> <span class='hs-varid'>lamE</span><span class='hs-layout'>,</span> <span class='hs-comment'>-- :: SrcLoc -> [Pat] -> Exp -> Exp</span> <a name="line-46"></a> <span class='hs-varid'>letE</span><span class='hs-layout'>,</span> <span class='hs-comment'>-- :: [Decl] -> Exp -> Exp</span> <a name="line-47"></a> <span class='hs-varid'>caseE</span><span class='hs-layout'>,</span> <span class='hs-comment'>-- :: Exp -> [Alt] -> Exp</span> <a name="line-48"></a> <span class='hs-varid'>alt</span><span class='hs-layout'>,</span> <span class='hs-comment'>-- :: SrcLoc -> Pat -> Exp -> Alt</span> <a name="line-49"></a> <span class='hs-varid'>altGW</span><span class='hs-layout'>,</span> <span class='hs-comment'>-- :: SrcLoc -> Pat -> [Stmt] -> Exp -> Binds -> Alt</span> <a name="line-50"></a> <span class='hs-varid'>listE</span><span class='hs-layout'>,</span> <span class='hs-comment'>-- :: [Exp] -> Exp</span> <a name="line-51"></a> <span class='hs-varid'>eList</span><span class='hs-layout'>,</span> <span class='hs-comment'>-- :: Exp</span> <a name="line-52"></a> <span class='hs-varid'>peList</span><span class='hs-layout'>,</span> <span class='hs-comment'>-- :: Pat</span> <a name="line-53"></a> <span class='hs-varid'>paren</span><span class='hs-layout'>,</span> <span class='hs-comment'>-- :: Exp -> Exp</span> <a name="line-54"></a> <span class='hs-varid'>pParen</span><span class='hs-layout'>,</span> <span class='hs-comment'>-- :: Pat -> Pat</span> <a name="line-55"></a> <span class='hs-varid'>qualStmt</span><span class='hs-layout'>,</span> <span class='hs-comment'>-- :: Exp -> Stmt</span> <a name="line-56"></a> <span class='hs-varid'>genStmt</span><span class='hs-layout'>,</span> <span class='hs-comment'>-- :: SrcLoc -> Pat -> Exp -> Stmt</span> <a name="line-57"></a> <span class='hs-varid'>letStmt</span><span class='hs-layout'>,</span> <span class='hs-comment'>-- :: [Decl] -> Stmt</span> <a name="line-58"></a> <span class='hs-varid'>binds</span><span class='hs-layout'>,</span> <span class='hs-comment'>-- :: [Decl] -> Binds</span> <a name="line-59"></a> <span class='hs-varid'>noBinds</span><span class='hs-layout'>,</span> <span class='hs-comment'>-- :: Binds</span> <a name="line-60"></a> <span class='hs-varid'>wildcard</span><span class='hs-layout'>,</span> <span class='hs-comment'>-- :: Pat</span> <a name="line-61"></a> <span class='hs-varid'>genNames</span><span class='hs-layout'>,</span> <span class='hs-comment'>-- :: String -> Int -> [Name]</span> <a name="line-62"></a> <a name="line-63"></a> <span class='hs-comment'>-- * More advanced building</span> <a name="line-64"></a> <span class='hs-varid'>sfun</span><span class='hs-layout'>,</span> <span class='hs-comment'>-- :: SrcLoc -> Name -> [Name] -> Rhs -> Binds -> Decl</span> <a name="line-65"></a> <span class='hs-varid'>simpleFun</span><span class='hs-layout'>,</span> <span class='hs-comment'>-- :: SrcLoc -> Name -> Name -> Exp -> Decl</span> <a name="line-66"></a> <span class='hs-varid'>patBind</span><span class='hs-layout'>,</span> <span class='hs-comment'>-- :: SrcLoc -> Pat -> Exp -> Decl</span> <a name="line-67"></a> <span class='hs-varid'>patBindWhere</span><span class='hs-layout'>,</span> <span class='hs-comment'>-- :: SrcLoc -> Pat -> Exp -> [Decl] -> Decl</span> <a name="line-68"></a> <span class='hs-varid'>nameBind</span><span class='hs-layout'>,</span> <span class='hs-comment'>-- :: SrcLoc -> Name -> Exp -> Decl</span> <a name="line-69"></a> <span class='hs-varid'>metaFunction</span><span class='hs-layout'>,</span> <span class='hs-comment'>-- :: String -> [Exp] -> Exp</span> <a name="line-70"></a> <span class='hs-varid'>metaConPat</span> <span class='hs-comment'>-- :: String -> [Pat] -> Pat</span> <a name="line-71"></a> <span class='hs-layout'>)</span> <span class='hs-keyword'>where</span> <a name="line-72"></a> <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'>Syntax</span> <a name="line-74"></a> <a name="line-75"></a><span class='hs-comment'>-----------------------------------------------------------------------------</span> <a name="line-76"></a><span class='hs-comment'>-- Help functions for Abstract syntax</span> <a name="line-77"></a> <a name="line-78"></a><a name="name"></a><span class='hs-comment'>-- | An identifier with the given string as its name.</span> <a name="line-79"></a><span class='hs-comment'>-- The string should be a valid Haskell identifier.</span> <a name="line-80"></a><span class='hs-definition'>name</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Name</span> <a name="line-81"></a><span class='hs-definition'>name</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Ident</span> <a name="line-82"></a> <a name="line-83"></a><a name="sym"></a><span class='hs-comment'>-- | A symbol identifier. The string should be a valid</span> <a name="line-84"></a><span class='hs-comment'>-- Haskell symbol identifier.</span> <a name="line-85"></a><span class='hs-definition'>sym</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Name</span> <a name="line-86"></a><span class='hs-definition'>sym</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Symbol</span> <a name="line-87"></a> <a name="line-88"></a><a name="var"></a><span class='hs-comment'>-- | A local variable as expression.</span> <a name="line-89"></a><span class='hs-definition'>var</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Name</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Exp</span> <a name="line-90"></a><span class='hs-definition'>var</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Var</span> <span class='hs-varop'>.</span> <span class='hs-conid'>UnQual</span> <a name="line-91"></a> <a name="line-92"></a><a name="op"></a><span class='hs-comment'>-- | Use the given identifier as an operator.</span> <a name="line-93"></a><span class='hs-definition'>op</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Name</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>QOp</span> <a name="line-94"></a><span class='hs-definition'>op</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>QVarOp</span> <span class='hs-varop'>.</span> <span class='hs-conid'>UnQual</span> <a name="line-95"></a> <a name="line-96"></a><a name="qvar"></a><span class='hs-comment'>-- | A qualified variable as expression.</span> <a name="line-97"></a><span class='hs-definition'>qvar</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ModuleName</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Name</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Exp</span> <a name="line-98"></a><span class='hs-definition'>qvar</span> <span class='hs-varid'>m</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Var</span> <span class='hs-varop'>$</span> <span class='hs-conid'>Qual</span> <span class='hs-varid'>m</span> <span class='hs-varid'>n</span> <a name="line-99"></a> <a name="line-100"></a><a name="pvar"></a><span class='hs-comment'>-- | A pattern variable.</span> <a name="line-101"></a><span class='hs-definition'>pvar</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Name</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Pat</span> <a name="line-102"></a><span class='hs-definition'>pvar</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>PVar</span> <a name="line-103"></a> <a name="line-104"></a><a name="app"></a><span class='hs-comment'>-- | Application of expressions by juxtaposition.</span> <a name="line-105"></a><span class='hs-definition'>app</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Exp</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Exp</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Exp</span> <a name="line-106"></a><span class='hs-definition'>app</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>App</span> <a name="line-107"></a> <a name="line-108"></a><a name="infixApp"></a><span class='hs-comment'>-- | Apply an operator infix.</span> <a name="line-109"></a><span class='hs-definition'>infixApp</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Exp</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>QOp</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Exp</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Exp</span> <a name="line-110"></a><span class='hs-definition'>infixApp</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>InfixApp</span> <a name="line-111"></a> <a name="line-112"></a><a name="appFun"></a><span class='hs-comment'>-- | Apply a function to a list of arguments.</span> <a name="line-113"></a><span class='hs-definition'>appFun</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Exp</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Exp</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Exp</span> <a name="line-114"></a><span class='hs-definition'>appFun</span> <span class='hs-varid'>f</span> <span class='hs-conid'>[]</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>f</span> <a name="line-115"></a><span class='hs-definition'>appFun</span> <span class='hs-varid'>f</span> <span class='hs-layout'>(</span><span class='hs-varid'>a</span><span class='hs-conop'>:</span><span class='hs-keyword'>as</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>appFun</span> <span class='hs-layout'>(</span><span class='hs-varid'>app</span> <span class='hs-varid'>f</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span> <span class='hs-keyword'>as</span> <a name="line-116"></a> <a name="line-117"></a><a name="pApp"></a><span class='hs-comment'>-- | A constructor pattern, with argument patterns.</span> <a name="line-118"></a><span class='hs-definition'>pApp</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Name</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Pat</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Pat</span> <a name="line-119"></a><span class='hs-definition'>pApp</span> <span class='hs-varid'>n</span> <span class='hs-varid'>ps</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>PApp</span> <span class='hs-layout'>(</span><span class='hs-conid'>UnQual</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span> <span class='hs-varid'>ps</span> <a name="line-120"></a> <a name="line-121"></a><a name="tuple"></a><span class='hs-comment'>-- | A tuple expression.</span> <a name="line-122"></a><span class='hs-definition'>tuple</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Exp</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Exp</span> <a name="line-123"></a><span class='hs-definition'>tuple</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Tuple</span> <a name="line-124"></a> <a name="line-125"></a><a name="pTuple"></a><span class='hs-comment'>-- | A tuple pattern.</span> <a name="line-126"></a><span class='hs-definition'>pTuple</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Pat</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Pat</span> <a name="line-127"></a><span class='hs-definition'>pTuple</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>PTuple</span> <a name="line-128"></a> <a name="line-129"></a><a name="varTuple"></a><span class='hs-comment'>-- | A tuple expression consisting of variables only.</span> <a name="line-130"></a><span class='hs-definition'>varTuple</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Name</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Exp</span> <a name="line-131"></a><span class='hs-definition'>varTuple</span> <span class='hs-varid'>ns</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>tuple</span> <span class='hs-varop'>$</span> <span class='hs-varid'>map</span> <span class='hs-varid'>var</span> <span class='hs-varid'>ns</span> <a name="line-132"></a> <a name="line-133"></a><a name="pvarTuple"></a><span class='hs-comment'>-- | A tuple pattern consisting of variables only.</span> <a name="line-134"></a><span class='hs-definition'>pvarTuple</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Name</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Pat</span> <a name="line-135"></a><span class='hs-definition'>pvarTuple</span> <span class='hs-varid'>ns</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>pTuple</span> <span class='hs-varop'>$</span> <span class='hs-varid'>map</span> <span class='hs-varid'>pvar</span> <span class='hs-varid'>ns</span> <a name="line-136"></a> <a name="line-137"></a><a name="function"></a><span class='hs-comment'>-- | A function with a given name.</span> <a name="line-138"></a><span class='hs-definition'>function</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Exp</span> <a name="line-139"></a><span class='hs-definition'>function</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>var</span> <span class='hs-varop'>.</span> <span class='hs-conid'>Ident</span> <a name="line-140"></a> <a name="line-141"></a><a name="strE"></a><span class='hs-comment'>-- | A literal string expression.</span> <a name="line-142"></a><span class='hs-definition'>strE</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Exp</span> <a name="line-143"></a><span class='hs-definition'>strE</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Lit</span> <span class='hs-varop'>.</span> <span class='hs-conid'>String</span> <a name="line-144"></a> <a name="line-145"></a><a name="charE"></a><span class='hs-comment'>-- | A literal character expression.</span> <a name="line-146"></a><span class='hs-definition'>charE</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Char</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Exp</span> <a name="line-147"></a><span class='hs-definition'>charE</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Lit</span> <span class='hs-varop'>.</span> <span class='hs-conid'>Char</span> <a name="line-148"></a> <a name="line-149"></a><a name="intE"></a><span class='hs-comment'>-- | A literal integer expression.</span> <a name="line-150"></a><span class='hs-definition'>intE</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Integer</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Exp</span> <a name="line-151"></a><span class='hs-definition'>intE</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Lit</span> <span class='hs-varop'>.</span> <span class='hs-conid'>Int</span> <a name="line-152"></a> <a name="line-153"></a><a name="strP"></a><span class='hs-comment'>-- | A literal string pattern.</span> <a name="line-154"></a><span class='hs-definition'>strP</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Pat</span> <a name="line-155"></a><span class='hs-definition'>strP</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>PLit</span> <span class='hs-varop'>.</span> <span class='hs-conid'>String</span> <a name="line-156"></a> <a name="line-157"></a><a name="charP"></a><span class='hs-comment'>-- | A literal character pattern.</span> <a name="line-158"></a><span class='hs-definition'>charP</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Char</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Pat</span> <a name="line-159"></a><span class='hs-definition'>charP</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>PLit</span> <span class='hs-varop'>.</span> <span class='hs-conid'>Char</span> <a name="line-160"></a> <a name="line-161"></a><a name="intP"></a><span class='hs-comment'>-- | A literal integer pattern.</span> <a name="line-162"></a><span class='hs-definition'>intP</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Integer</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Pat</span> <a name="line-163"></a><span class='hs-definition'>intP</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>PLit</span> <span class='hs-varop'>.</span> <span class='hs-conid'>Int</span> <a name="line-164"></a> <a name="line-165"></a><a name="doE"></a><span class='hs-comment'>-- | A do block formed by the given statements.</span> <a name="line-166"></a><span class='hs-comment'>-- The last statement in the list should be</span> <a name="line-167"></a><span class='hs-comment'>-- a 'Qualifier' expression.</span> <a name="line-168"></a><span class='hs-definition'>doE</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Stmt</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Exp</span> <a name="line-169"></a><span class='hs-definition'>doE</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Do</span> <a name="line-170"></a> <a name="line-171"></a><a name="lamE"></a><span class='hs-comment'>-- | Lambda abstraction, given a list of argument</span> <a name="line-172"></a><span class='hs-comment'>-- patterns and an expression body.</span> <a name="line-173"></a><span class='hs-definition'>lamE</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>SrcLoc</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Pat</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Exp</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Exp</span> <a name="line-174"></a><span class='hs-definition'>lamE</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Lambda</span> <a name="line-175"></a> <a name="line-176"></a><a name="letE"></a><span class='hs-comment'>-- | A @let@ ... @in@ block.</span> <a name="line-177"></a><span class='hs-definition'>letE</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Decl</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Exp</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Exp</span> <a name="line-178"></a><span class='hs-definition'>letE</span> <span class='hs-varid'>ds</span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Let</span> <span class='hs-layout'>(</span><span class='hs-varid'>binds</span> <span class='hs-varid'>ds</span><span class='hs-layout'>)</span> <span class='hs-varid'>e</span> <a name="line-179"></a> <a name="line-180"></a><a name="caseE"></a><span class='hs-comment'>-- | A @case@ expression.</span> <a name="line-181"></a><span class='hs-definition'>caseE</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Exp</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Alt</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Exp</span> <a name="line-182"></a><span class='hs-definition'>caseE</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Case</span> <a name="line-183"></a> <a name="line-184"></a><a name="alt"></a><span class='hs-comment'>-- | An unguarded alternative in a @case@ expression.</span> <a name="line-185"></a><span class='hs-definition'>alt</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>SrcLoc</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Pat</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Exp</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Alt</span> <a name="line-186"></a><span class='hs-definition'>alt</span> <span class='hs-varid'>s</span> <span class='hs-varid'>p</span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Alt</span> <span class='hs-varid'>s</span> <span class='hs-varid'>p</span> <span class='hs-layout'>(</span><span class='hs-varid'>unGAlt</span> <span class='hs-varid'>e</span><span class='hs-layout'>)</span> <span class='hs-varid'>noBinds</span> <a name="line-187"></a> <a name="line-188"></a><a name="altGW"></a><span class='hs-comment'>-- | An alternative with a single guard in a @case@ expression.</span> <a name="line-189"></a><span class='hs-definition'>altGW</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>SrcLoc</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Pat</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Stmt</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Exp</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Binds</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Alt</span> <a name="line-190"></a><span class='hs-definition'>altGW</span> <span class='hs-varid'>s</span> <span class='hs-varid'>p</span> <span class='hs-varid'>gs</span> <span class='hs-varid'>e</span> <span class='hs-varid'>w</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Alt</span> <span class='hs-varid'>s</span> <span class='hs-varid'>p</span> <span class='hs-layout'>(</span><span class='hs-varid'>gAlt</span> <span class='hs-varid'>s</span> <span class='hs-varid'>gs</span> <span class='hs-varid'>e</span><span class='hs-layout'>)</span> <span class='hs-varid'>w</span> <a name="line-191"></a> <a name="line-192"></a><a name="unGAlt"></a><span class='hs-comment'>-- | An unguarded righthand side of a @case@ alternative.</span> <a name="line-193"></a><span class='hs-definition'>unGAlt</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Exp</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>GuardedAlts</span> <a name="line-194"></a><span class='hs-definition'>unGAlt</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>UnGuardedAlt</span> <a name="line-195"></a> <a name="line-196"></a><a name="gAlts"></a><span class='hs-comment'>-- | An list of guarded righthand sides for a @case@ alternative.</span> <a name="line-197"></a><span class='hs-definition'>gAlts</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>SrcLoc</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'>Stmt</span><span class='hs-keyglyph'>]</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-keyglyph'>-></span> <span class='hs-conid'>GuardedAlts</span> <a name="line-198"></a><span class='hs-definition'>gAlts</span> <span class='hs-varid'>s</span> <span class='hs-keyword'>as</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>GuardedAlts</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-layout'>(</span><span class='hs-varid'>gs</span><span class='hs-layout'>,</span><span class='hs-varid'>e</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>GuardedAlt</span> <span class='hs-varid'>s</span> <span class='hs-varid'>gs</span> <span class='hs-varid'>e</span><span class='hs-layout'>)</span> <span class='hs-keyword'>as</span> <a name="line-199"></a> <a name="line-200"></a><a name="gAlt"></a><span class='hs-comment'>-- | A single guarded righthand side for a @case@ alternative.</span> <a name="line-201"></a><span class='hs-definition'>gAlt</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>SrcLoc</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Stmt</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Exp</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>GuardedAlts</span> <a name="line-202"></a><span class='hs-definition'>gAlt</span> <span class='hs-varid'>s</span> <span class='hs-varid'>gs</span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>gAlts</span> <span class='hs-varid'>s</span> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-varid'>gs</span><span class='hs-layout'>,</span><span class='hs-varid'>e</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span> <a name="line-203"></a> <a name="line-204"></a><a name="listE"></a><span class='hs-comment'>-- | A list expression.</span> <a name="line-205"></a><span class='hs-definition'>listE</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Exp</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Exp</span> <a name="line-206"></a><span class='hs-definition'>listE</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>List</span> <a name="line-207"></a> <a name="line-208"></a><a name="eList"></a><span class='hs-comment'>-- | The empty list expression.</span> <a name="line-209"></a><span class='hs-definition'>eList</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Exp</span> <a name="line-210"></a><span class='hs-definition'>eList</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>List</span> <span class='hs-conid'>[]</span> <a name="line-211"></a> <a name="line-212"></a><a name="peList"></a><span class='hs-comment'>-- | The empty list pattern.</span> <a name="line-213"></a><span class='hs-definition'>peList</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Pat</span> <a name="line-214"></a><span class='hs-definition'>peList</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>PList</span> <span class='hs-conid'>[]</span> <a name="line-215"></a> <a name="line-216"></a><a name="paren"></a><span class='hs-comment'>-- | Put parentheses around an expression.</span> <a name="line-217"></a><span class='hs-definition'>paren</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Exp</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Exp</span> <a name="line-218"></a><span class='hs-definition'>paren</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Paren</span> <a name="line-219"></a> <a name="line-220"></a><a name="pParen"></a><span class='hs-comment'>-- | Put parentheses around a pattern.</span> <a name="line-221"></a><span class='hs-definition'>pParen</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Pat</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Pat</span> <a name="line-222"></a><span class='hs-definition'>pParen</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>PParen</span> <a name="line-223"></a> <a name="line-224"></a><a name="qualStmt"></a><span class='hs-comment'>-- | A qualifier expression statement.</span> <a name="line-225"></a><span class='hs-definition'>qualStmt</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Exp</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Stmt</span> <a name="line-226"></a><span class='hs-definition'>qualStmt</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Qualifier</span> <a name="line-227"></a> <a name="line-228"></a><a name="genStmt"></a><span class='hs-comment'>-- | A generator statement: /pat/ @<-@ /exp/</span> <a name="line-229"></a><span class='hs-definition'>genStmt</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>SrcLoc</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Pat</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Exp</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Stmt</span> <a name="line-230"></a><span class='hs-definition'>genStmt</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Generator</span> <a name="line-231"></a> <a name="line-232"></a><a name="letStmt"></a><span class='hs-comment'>-- | A @let@ binding group as a statement.</span> <a name="line-233"></a><span class='hs-definition'>letStmt</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Decl</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Stmt</span> <a name="line-234"></a><span class='hs-definition'>letStmt</span> <span class='hs-varid'>ds</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>LetStmt</span> <span class='hs-varop'>$</span> <span class='hs-varid'>binds</span> <span class='hs-varid'>ds</span> <a name="line-235"></a> <a name="line-236"></a><a name="binds"></a><span class='hs-comment'>-- | Hoist a set of declarations to a binding group.</span> <a name="line-237"></a><span class='hs-definition'>binds</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Decl</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Binds</span> <a name="line-238"></a><span class='hs-definition'>binds</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>BDecls</span> <a name="line-239"></a> <a name="line-240"></a><a name="noBinds"></a><span class='hs-comment'>-- | An empty binding group.</span> <a name="line-241"></a><span class='hs-definition'>noBinds</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Binds</span> <a name="line-242"></a><span class='hs-definition'>noBinds</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>binds</span> <span class='hs-conid'>[]</span> <a name="line-243"></a> <a name="line-244"></a><a name="wildcard"></a><span class='hs-comment'>-- | The wildcard pattern: @_@</span> <a name="line-245"></a><span class='hs-definition'>wildcard</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Pat</span> <a name="line-246"></a><span class='hs-definition'>wildcard</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>PWildCard</span> <a name="line-247"></a> <a name="line-248"></a><a name="genNames"></a><span class='hs-comment'>-- | Generate k names by appending numbers 1 through k to a given string.</span> <a name="line-249"></a><span class='hs-definition'>genNames</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Name</span><span class='hs-keyglyph'>]</span> <a name="line-250"></a><span class='hs-definition'>genNames</span> <span class='hs-varid'>s</span> <span class='hs-varid'>k</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>[</span> <span class='hs-conid'>Ident</span> <span class='hs-varop'>$</span> <span class='hs-varid'>s</span> <span class='hs-varop'>++</span> <span class='hs-varid'>show</span> <span class='hs-varid'>i</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>i</span> <span class='hs-keyglyph'><-</span> <span class='hs-keyglyph'>[</span><span class='hs-num'>1</span><span class='hs-keyglyph'>..</span><span class='hs-varid'>k</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>]</span> <a name="line-251"></a> <a name="line-252"></a><span class='hs-comment'>-------------------------------------------------------------------------------</span> <a name="line-253"></a><span class='hs-comment'>-- Some more specialised help functions</span> <a name="line-254"></a> <a name="line-255"></a><a name="sfun"></a><span class='hs-comment'>-- | A function with a single clause</span> <a name="line-256"></a><span class='hs-definition'>sfun</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>SrcLoc</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Name</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Name</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Rhs</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Binds</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Decl</span> <a name="line-257"></a><span class='hs-definition'>sfun</span> <span class='hs-varid'>s</span> <span class='hs-varid'>f</span> <span class='hs-varid'>pvs</span> <span class='hs-varid'>rhs</span> <span class='hs-varid'>bs</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>FunBind</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Match</span> <span class='hs-varid'>s</span> <span class='hs-varid'>f</span> <span class='hs-layout'>(</span><span class='hs-varid'>map</span> <span class='hs-varid'>pvar</span> <span class='hs-varid'>pvs</span><span class='hs-layout'>)</span> <span class='hs-conid'>Nothing</span> <span class='hs-varid'>rhs</span> <span class='hs-varid'>bs</span><span class='hs-keyglyph'>]</span> <a name="line-258"></a> <a name="line-259"></a><a name="simpleFun"></a><span class='hs-comment'>-- | A function with a single clause, a single argument, no guards</span> <a name="line-260"></a><span class='hs-comment'>-- and no where declarations</span> <a name="line-261"></a><span class='hs-definition'>simpleFun</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>SrcLoc</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Name</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Name</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Exp</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Decl</span> <a name="line-262"></a><span class='hs-definition'>simpleFun</span> <span class='hs-varid'>s</span> <span class='hs-varid'>f</span> <span class='hs-varid'>a</span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>let</span> <span class='hs-varid'>rhs</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>UnGuardedRhs</span> <span class='hs-varid'>e</span> <a name="line-263"></a> <span class='hs-keyword'>in</span> <span class='hs-varid'>sfun</span> <span class='hs-varid'>s</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>a</span><span class='hs-keyglyph'>]</span> <span class='hs-varid'>rhs</span> <span class='hs-varid'>noBinds</span> <a name="line-264"></a> <a name="line-265"></a><a name="patBind"></a><span class='hs-comment'>-- | A pattern bind where the pattern is a variable, and where</span> <a name="line-266"></a><span class='hs-comment'>-- there are no guards and no 'where' clause.</span> <a name="line-267"></a><span class='hs-definition'>patBind</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>SrcLoc</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Pat</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Exp</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Decl</span> <a name="line-268"></a><span class='hs-definition'>patBind</span> <span class='hs-varid'>s</span> <span class='hs-varid'>p</span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>let</span> <span class='hs-varid'>rhs</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>UnGuardedRhs</span> <span class='hs-varid'>e</span> <a name="line-269"></a> <span class='hs-keyword'>in</span> <span class='hs-conid'>PatBind</span> <span class='hs-varid'>s</span> <span class='hs-varid'>p</span> <span class='hs-conid'>Nothing</span> <span class='hs-varid'>rhs</span> <span class='hs-varid'>noBinds</span> <a name="line-270"></a> <a name="line-271"></a><a name="patBindWhere"></a><span class='hs-comment'>-- | A pattern bind where the pattern is a variable, and where</span> <a name="line-272"></a><span class='hs-comment'>-- there are no guards, but with a 'where' clause.</span> <a name="line-273"></a><span class='hs-definition'>patBindWhere</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>SrcLoc</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Pat</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Exp</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Decl</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Decl</span> <a name="line-274"></a><span class='hs-definition'>patBindWhere</span> <span class='hs-varid'>s</span> <span class='hs-varid'>p</span> <span class='hs-varid'>e</span> <span class='hs-varid'>ds</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>let</span> <span class='hs-varid'>rhs</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>UnGuardedRhs</span> <span class='hs-varid'>e</span> <a name="line-275"></a> <span class='hs-keyword'>in</span> <span class='hs-conid'>PatBind</span> <span class='hs-varid'>s</span> <span class='hs-varid'>p</span> <span class='hs-conid'>Nothing</span> <span class='hs-varid'>rhs</span> <span class='hs-layout'>(</span><span class='hs-varid'>binds</span> <span class='hs-varid'>ds</span><span class='hs-layout'>)</span> <a name="line-276"></a> <a name="line-277"></a><a name="nameBind"></a><span class='hs-comment'>-- | Bind an identifier to an expression.</span> <a name="line-278"></a><span class='hs-definition'>nameBind</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>SrcLoc</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Name</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Exp</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Decl</span> <a name="line-279"></a><span class='hs-definition'>nameBind</span> <span class='hs-varid'>s</span> <span class='hs-varid'>n</span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>patBind</span> <span class='hs-varid'>s</span> <span class='hs-layout'>(</span><span class='hs-varid'>pvar</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span> <span class='hs-varid'>e</span> <a name="line-280"></a> <a name="line-281"></a><a name="metaFunction"></a><span class='hs-comment'>-- | Apply function of a given name to a list of arguments.</span> <a name="line-282"></a><span class='hs-definition'>metaFunction</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'>Exp</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Exp</span> <a name="line-283"></a><span class='hs-definition'>metaFunction</span> <span class='hs-varid'>s</span> <span class='hs-varid'>es</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>mf</span> <span class='hs-varid'>s</span> <span class='hs-layout'>(</span><span class='hs-varid'>reverse</span> <span class='hs-varid'>es</span><span class='hs-layout'>)</span> <a name="line-284"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>mf</span> <span class='hs-varid'>s</span> <span class='hs-conid'>[]</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>var</span> <span class='hs-varop'>$</span> <span class='hs-varid'>name</span> <span class='hs-varid'>s</span> <a name="line-285"></a> <span class='hs-varid'>mf</span> <span class='hs-varid'>s</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-keyglyph'>=</span> <span class='hs-varid'>app</span> <span class='hs-layout'>(</span><span class='hs-varid'>mf</span> <span class='hs-varid'>s</span> <span class='hs-varid'>es</span><span class='hs-layout'>)</span> <span class='hs-varid'>e</span> <a name="line-286"></a> <a name="line-287"></a><a name="metaConPat"></a><span class='hs-comment'>-- | Apply a constructor of a given name to a list of pattern</span> <a name="line-288"></a><span class='hs-comment'>-- arguments, forming a constructor pattern.</span> <a name="line-289"></a><span class='hs-definition'>metaConPat</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'>Pat</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Pat</span> <a name="line-290"></a><span class='hs-definition'>metaConPat</span> <span class='hs-varid'>s</span> <span class='hs-varid'>ps</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>pApp</span> <span class='hs-layout'>(</span><span class='hs-varid'>name</span> <span class='hs-varid'>s</span><span class='hs-layout'>)</span> <span class='hs-varid'>ps</span> </pre></body> </html>
