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<title>src/Language/Haskell/Exts/Annotated.hs</title>
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<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</span>
<a name="line-4"></a><span class='hs-comment'>-- Copyright : (c) Niklas Broberg 2004-2009</span>
<a name="line-5"></a><span class='hs-comment'>-- License : BSD-style (see the file LICENSE.txt)</span>
<a name="line-6"></a><span class='hs-comment'>--</span>
<a name="line-7"></a><span class='hs-comment'>-- Maintainer : Niklas Broberg, d00nibro@chalmers.se</span>
<a name="line-8"></a><span class='hs-comment'>-- Stability : stable</span>
<a name="line-9"></a><span class='hs-comment'>-- Portability : portable</span>
<a name="line-10"></a><span class='hs-comment'>--</span>
<a name="line-11"></a><span class='hs-comment'>-- An umbrella module for the various functionality</span>
<a name="line-12"></a><span class='hs-comment'>-- of the package. Also provides some convenient</span>
<a name="line-13"></a><span class='hs-comment'>-- functionality for dealing directly with source files.</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><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'>Annotated</span> <span class='hs-layout'>(</span>
<a name="line-17"></a> <span class='hs-comment'>-- * Re-exported modules</span>
<a name="line-18"></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'>Annotated</span><span class='hs-varop'>.</span><span class='hs-conid'>Syntax</span>
<a name="line-19"></a> <span class='hs-layout'>,</span> <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'>Annotated</span><span class='hs-varop'>.</span><span class='hs-conid'>Build</span>
<a name="line-20"></a> <span class='hs-layout'>,</span> <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'>Parser</span>
<a name="line-21"></a> <span class='hs-layout'>,</span> <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'>Pretty</span>
<a name="line-22"></a> <span class='hs-layout'>,</span> <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'>Annotated</span><span class='hs-varop'>.</span><span class='hs-conid'>Fixity</span>
<a name="line-23"></a> <span class='hs-layout'>,</span> <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'>Annotated</span><span class='hs-varop'>.</span><span class='hs-conid'>ExactPrint</span>
<a name="line-24"></a> <span class='hs-layout'>,</span> <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'>SrcLoc</span>
<a name="line-25"></a> <span class='hs-layout'>,</span> <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'>Comments</span>
<a name="line-26"></a> <span class='hs-layout'>,</span> <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'>Extension</span>
<a name="line-27"></a> <span class='hs-comment'>-- * Parsing of Haskell source files</span>
<a name="line-28"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>parseFile</span>
<a name="line-29"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>parseFileWithMode</span>
<a name="line-30"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>parseFileWithExts</span>
<a name="line-31"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>parseFileWithComments</span>
<a name="line-32"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>parseFileContents</span>
<a name="line-33"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>parseFileContentsWithMode</span>
<a name="line-34"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>parseFileContentsWithExts</span>
<a name="line-35"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>parseFileContentsWithComments</span>
<a name="line-36"></a> <span class='hs-comment'>-- * Parsing of Haskell source elements,</span>
<a name="line-37"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>parseModule</span><span class='hs-layout'>,</span> <span class='hs-varid'>parseModuleWithMode</span><span class='hs-layout'>,</span> <span class='hs-varid'>parseModuleWithComments</span>
<a name="line-38"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>parseExp</span><span class='hs-layout'>,</span> <span class='hs-varid'>parseExpWithMode</span><span class='hs-layout'>,</span> <span class='hs-varid'>parseExpWithComments</span>
<a name="line-39"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>parseStmt</span><span class='hs-layout'>,</span> <span class='hs-varid'>parseStmtWithMode</span><span class='hs-layout'>,</span> <span class='hs-varid'>parseStmtWithComments</span>
<a name="line-40"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>parsePat</span><span class='hs-layout'>,</span> <span class='hs-varid'>parsePatWithMode</span><span class='hs-layout'>,</span> <span class='hs-varid'>parsePatWithComments</span>
<a name="line-41"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>parseDecl</span><span class='hs-layout'>,</span> <span class='hs-varid'>parseDeclWithMode</span><span class='hs-layout'>,</span> <span class='hs-varid'>parseDeclWithComments</span>
<a name="line-42"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>parseType</span><span class='hs-layout'>,</span> <span class='hs-varid'>parseTypeWithMode</span><span class='hs-layout'>,</span> <span class='hs-varid'>parseTypeWithComments</span>
<a name="line-43"></a> <span class='hs-comment'>-- * Read extensions declared in LANGUAGE pragmas</span>
<a name="line-44"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>readExtensions</span>
<a name="line-45"></a> <span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-46"></a>
<a name="line-47"></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-48"></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>
<a name="line-49"></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'>Parser</span> <span class='hs-layout'>(</span> <span class='hs-conid'>Parseable</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'>ParseResult</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-varid'>fromParseResult</span><span class='hs-layout'>,</span> <span class='hs-conid'>ParseMode</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-varid'>defaultParseMode</span> <span class='hs-layout'>)</span>
<a name="line-50"></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-51"></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'>Fixity</span>
<a name="line-52"></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'>ExactPrint</span>
<a name="line-53"></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-54"></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-55"></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'>Comments</span>
<a name="line-56"></a>
<a name="line-57"></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'>InternalParser</span>
<a name="line-58"></a>
<a name="line-59"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>List</span>
<a name="line-60"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Language</span><span class='hs-varop'>.</span><span class='hs-conid'>Preprocessor</span><span class='hs-varop'>.</span><span class='hs-conid'>Unlit</span>
<a name="line-61"></a>
<a name="line-62"></a><a name="parseFile"></a><span class='hs-comment'>-- | Parse a source file on disk, using the default parse mode.</span>
<a name="line-63"></a><span class='hs-definition'>parseFile</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>FilePath</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-layout'>(</span><span class='hs-conid'>ParseResult</span> <span class='hs-layout'>(</span><span class='hs-conid'>Module</span> <span class='hs-conid'>SrcSpanInfo</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-64"></a><span class='hs-definition'>parseFile</span> <span class='hs-varid'>fp</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>parseFileWithMode</span> <span class='hs-layout'>(</span><span class='hs-varid'>defaultParseMode</span> <span class='hs-layout'>{</span> <span class='hs-varid'>parseFilename</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fp</span> <span class='hs-layout'>}</span><span class='hs-layout'>)</span> <span class='hs-varid'>fp</span>
<a name="line-65"></a>
<a name="line-66"></a><a name="parseFileWithExts"></a><span class='hs-comment'>-- | Parse a source file on disk, with an extra set of extensions to know about</span>
<a name="line-67"></a><span class='hs-comment'>-- on top of what the file itself declares.</span>
<a name="line-68"></a><span class='hs-definition'>parseFileWithExts</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Extension</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>FilePath</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-layout'>(</span><span class='hs-conid'>ParseResult</span> <span class='hs-layout'>(</span><span class='hs-conid'>Module</span> <span class='hs-conid'>SrcSpanInfo</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-69"></a><span class='hs-definition'>parseFileWithExts</span> <span class='hs-varid'>exts</span> <span class='hs-varid'>fp</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>parseFileWithMode</span> <span class='hs-layout'>(</span><span class='hs-varid'>defaultParseMode</span> <span class='hs-layout'>{</span> <span class='hs-varid'>extensions</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>exts</span><span class='hs-layout'>,</span> <span class='hs-varid'>parseFilename</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fp</span> <span class='hs-layout'>}</span><span class='hs-layout'>)</span> <span class='hs-varid'>fp</span>
<a name="line-70"></a>
<a name="line-71"></a><a name="parseFileWithMode"></a><span class='hs-comment'>-- | Parse a source file on disk, supplying a custom parse mode.</span>
<a name="line-72"></a><span class='hs-definition'>parseFileWithMode</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ParseMode</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>FilePath</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-layout'>(</span><span class='hs-conid'>ParseResult</span> <span class='hs-layout'>(</span><span class='hs-conid'>Module</span> <span class='hs-conid'>SrcSpanInfo</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-73"></a><span class='hs-definition'>parseFileWithMode</span> <span class='hs-varid'>p</span> <span class='hs-varid'>fp</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>readFile</span> <span class='hs-varid'>fp</span> <span class='hs-varop'>>>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>return</span> <span class='hs-varop'>.</span> <span class='hs-varid'>parseFileContentsWithMode</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span>
<a name="line-74"></a>
<a name="line-75"></a><a name="parseFileWithComments"></a><span class='hs-definition'>parseFileWithComments</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ParseMode</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>FilePath</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-layout'>(</span><span class='hs-conid'>ParseResult</span> <span class='hs-layout'>(</span><span class='hs-conid'>Module</span> <span class='hs-conid'>SrcSpanInfo</span><span class='hs-layout'>,</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Comment</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-76"></a><span class='hs-definition'>parseFileWithComments</span> <span class='hs-varid'>p</span> <span class='hs-varid'>fp</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>readFile</span> <span class='hs-varid'>fp</span> <span class='hs-varop'>>>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>return</span> <span class='hs-varop'>.</span> <span class='hs-varid'>parseFileContentsWithComments</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span>
<a name="line-77"></a>
<a name="line-78"></a><a name="parseFileContents"></a><span class='hs-comment'>-- | Parse a source file from a string using the default parse mode.</span>
<a name="line-79"></a><span class='hs-definition'>parseFileContents</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ParseResult</span> <span class='hs-layout'>(</span><span class='hs-conid'>Module</span> <span class='hs-conid'>SrcSpanInfo</span><span class='hs-layout'>)</span>
<a name="line-80"></a><span class='hs-definition'>parseFileContents</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>parseFileContentsWithMode</span> <span class='hs-varid'>defaultParseMode</span>
<a name="line-81"></a>
<a name="line-82"></a><a name="parseFileContentsWithExts"></a><span class='hs-comment'>-- | Parse a source file from a string, with an extra set of extensions to know about</span>
<a name="line-83"></a><span class='hs-comment'>-- on top of what the file itself declares.</span>
<a name="line-84"></a><span class='hs-definition'>parseFileContentsWithExts</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Extension</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-conid'>ParseResult</span> <span class='hs-layout'>(</span><span class='hs-conid'>Module</span> <span class='hs-conid'>SrcSpanInfo</span><span class='hs-layout'>)</span>
<a name="line-85"></a><span class='hs-definition'>parseFileContentsWithExts</span> <span class='hs-varid'>exts</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>parseFileContentsWithMode</span> <span class='hs-layout'>(</span><span class='hs-varid'>defaultParseMode</span> <span class='hs-layout'>{</span> <span class='hs-varid'>extensions</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>exts</span> <span class='hs-layout'>}</span><span class='hs-layout'>)</span>
<a name="line-86"></a>
<a name="line-87"></a><a name="parseFileContentsWithMode"></a><span class='hs-comment'>-- | Parse a source file from a string using a custom parse mode.</span>
<a name="line-88"></a><span class='hs-definition'>parseFileContentsWithMode</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ParseMode</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ParseResult</span> <span class='hs-layout'>(</span><span class='hs-conid'>Module</span> <span class='hs-conid'>SrcSpanInfo</span><span class='hs-layout'>)</span>
<a name="line-89"></a><span class='hs-definition'>parseFileContentsWithMode</span> <span class='hs-varid'>p</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>ParseMode</span> <span class='hs-varid'>fn</span> <span class='hs-varid'>exts</span> <span class='hs-varid'>ign</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-varid'>rawStr</span> <span class='hs-keyglyph'>=</span>
<a name="line-90"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>md</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>delit</span> <span class='hs-varid'>fn</span> <span class='hs-varop'>$</span> <span class='hs-varid'>ppContents</span> <span class='hs-varid'>rawStr</span>
<a name="line-91"></a> <span class='hs-varid'>allExts</span> <span class='hs-keyglyph'>=</span> <span class='hs-comment'>-- impliesExts $ </span>
<a name="line-92"></a> <span class='hs-keyword'>case</span> <span class='hs-layout'>(</span><span class='hs-varid'>ign</span><span class='hs-layout'>,</span> <span class='hs-varid'>readExtensions</span> <span class='hs-varid'>md</span><span class='hs-layout'>)</span> <span class='hs-keyword'>of</span>
<a name="line-93"></a> <span class='hs-layout'>(</span><span class='hs-conid'>False</span><span class='hs-layout'>,</span><span class='hs-conid'>Just</span> <span class='hs-varid'>es</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>exts</span> <span class='hs-varop'>++</span> <span class='hs-varid'>es</span>
<a name="line-94"></a> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>exts</span>
<a name="line-95"></a> <span class='hs-keyword'>in</span> <span class='hs-varid'>parseModuleWithMode</span> <span class='hs-layout'>(</span><span class='hs-varid'>p</span> <span class='hs-layout'>{</span> <span class='hs-varid'>extensions</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>allExts</span> <span class='hs-layout'>}</span><span class='hs-layout'>)</span> <span class='hs-varid'>md</span>
<a name="line-96"></a>
<a name="line-97"></a><a name="parseFileContentsWithComments"></a><span class='hs-definition'>parseFileContentsWithComments</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ParseMode</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ParseResult</span> <span class='hs-layout'>(</span><span class='hs-conid'>Module</span> <span class='hs-conid'>SrcSpanInfo</span><span class='hs-layout'>,</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Comment</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span>
<a name="line-98"></a><span class='hs-definition'>parseFileContentsWithComments</span> <span class='hs-varid'>p</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>ParseMode</span> <span class='hs-varid'>fn</span> <span class='hs-varid'>exts</span> <span class='hs-varid'>ign</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-varid'>rawStr</span> <span class='hs-keyglyph'>=</span>
<a name="line-99"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>md</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>delit</span> <span class='hs-varid'>fn</span> <span class='hs-varop'>$</span> <span class='hs-varid'>ppContents</span> <span class='hs-varid'>rawStr</span>
<a name="line-100"></a> <span class='hs-varid'>allExts</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>impliesExts</span> <span class='hs-varop'>$</span> <span class='hs-keyword'>case</span> <span class='hs-layout'>(</span><span class='hs-varid'>ign</span><span class='hs-layout'>,</span> <span class='hs-varid'>readExtensions</span> <span class='hs-varid'>md</span><span class='hs-layout'>)</span> <span class='hs-keyword'>of</span>
<a name="line-101"></a> <span class='hs-layout'>(</span><span class='hs-conid'>False</span><span class='hs-layout'>,</span><span class='hs-conid'>Just</span> <span class='hs-varid'>es</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>exts</span> <span class='hs-varop'>++</span> <span class='hs-varid'>es</span>
<a name="line-102"></a> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>exts</span>
<a name="line-103"></a> <span class='hs-keyword'>in</span> <span class='hs-varid'>parseModuleWithComments</span> <span class='hs-layout'>(</span><span class='hs-varid'>p</span> <span class='hs-layout'>{</span> <span class='hs-varid'>extensions</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>allExts</span> <span class='hs-layout'>}</span><span class='hs-layout'>)</span> <span class='hs-varid'>md</span>
<a name="line-104"></a>
<a name="line-105"></a><a name="readExtensions"></a><span class='hs-comment'>-- | Gather the extensions declared in LANGUAGE pragmas</span>
<a name="line-106"></a><span class='hs-comment'>-- at the top of the file. Returns 'Nothing' if the</span>
<a name="line-107"></a><span class='hs-comment'>-- parse of the pragmas fails.</span>
<a name="line-108"></a><span class='hs-definition'>readExtensions</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Maybe</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Extension</span><span class='hs-keyglyph'>]</span>
<a name="line-109"></a><span class='hs-definition'>readExtensions</span> <span class='hs-varid'>str</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>getTopPragmas</span> <span class='hs-varid'>str</span> <span class='hs-keyword'>of</span>
<a name="line-110"></a> <span class='hs-conid'>ParseOk</span> <span class='hs-varid'>pgms</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Just</span> <span class='hs-layout'>(</span><span class='hs-varid'>concatMap</span> <span class='hs-varid'>getExts</span> <span class='hs-varid'>pgms</span><span class='hs-layout'>)</span>
<a name="line-111"></a> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Nothing</span>
<a name="line-112"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>getExts</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ModulePragma</span> <span class='hs-varid'>l</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Extension</span><span class='hs-keyglyph'>]</span>
<a name="line-113"></a> <span class='hs-varid'>getExts</span> <span class='hs-layout'>(</span><span class='hs-conid'>LanguagePragma</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>ns</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>map</span> <span class='hs-varid'>readExt</span> <span class='hs-varid'>ns</span>
<a name="line-114"></a> <span class='hs-varid'>getExts</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>[]</span>
<a name="line-115"></a>
<a name="line-116"></a> <span class='hs-varid'>readExt</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ident</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>e</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>classifyExtension</span> <span class='hs-varid'>e</span>
<a name="line-117"></a>
<a name="line-118"></a><a name="ppContents"></a><span class='hs-definition'>ppContents</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span>
<a name="line-119"></a><span class='hs-definition'>ppContents</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>unlines</span> <span class='hs-varop'>.</span> <span class='hs-varid'>f</span> <span class='hs-varop'>.</span> <span class='hs-varid'>lines</span>
<a name="line-120"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>f</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-chr'>'#'</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'>rest</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>rest</span>
<a name="line-121"></a> <span class='hs-varid'>f</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>x</span>
<a name="line-122"></a>
<a name="line-123"></a><a name="delit"></a><span class='hs-definition'>delit</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span>
<a name="line-124"></a><span class='hs-definition'>delit</span> <span class='hs-varid'>fn</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>if</span> <span class='hs-str'>".lhs"</span> <span class='hs-varop'>`isSuffixOf`</span> <span class='hs-varid'>fn</span> <span class='hs-keyword'>then</span> <span class='hs-varid'>unlit</span> <span class='hs-varid'>fn</span> <span class='hs-keyword'>else</span> <span class='hs-varid'>id</span>
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