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<title>src/full/Agda/Syntax/Scope/Monad.hs</title>
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<pre><a name="line-1"></a><span class='hs-comment'>{-# LANGUAGE CPP #-}</span>
<a name="line-2"></a>
<a name="line-3"></a><span class='hs-comment'>{-| The scope monad with operations.
<a name="line-4"></a>-}</span>
<a name="line-5"></a>
<a name="line-6"></a><span class='hs-keyword'>module</span> <span class='hs-conid'>Agda</span><span class='hs-varop'>.</span><span class='hs-conid'>Syntax</span><span class='hs-varop'>.</span><span class='hs-conid'>Scope</span><span class='hs-varop'>.</span><span class='hs-conid'>Monad</span> <span class='hs-keyword'>where</span>
<a name="line-7"></a>
<a name="line-8"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Prelude</span> <span class='hs-varid'>hiding</span> <span class='hs-layout'>(</span><span class='hs-varid'>mapM</span><span class='hs-layout'>)</span>
<a name="line-9"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Applicative</span>
<a name="line-10"></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-varid'>hiding</span> <span class='hs-layout'>(</span><span class='hs-varid'>mapM</span><span class='hs-layout'>)</span>
<a name="line-11"></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-varop'>.</span><span class='hs-conid'>Writer</span> <span class='hs-varid'>hiding</span> <span class='hs-layout'>(</span><span class='hs-varid'>mapM</span><span class='hs-layout'>)</span>
<a name="line-12"></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-varop'>.</span><span class='hs-conid'>State</span> <span class='hs-varid'>hiding</span> <span class='hs-layout'>(</span><span class='hs-varid'>mapM</span><span class='hs-layout'>)</span>
<a name="line-13"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Map</span> <span class='hs-layout'>(</span><span class='hs-conid'>Map</span><span class='hs-layout'>)</span>
<a name="line-14"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Traversable</span>
<a name="line-15"></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-16"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Map</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>Map</span>
<a name="line-17"></a>
<a name="line-18"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Agda</span><span class='hs-varop'>.</span><span class='hs-conid'>Syntax</span><span class='hs-varop'>.</span><span class='hs-conid'>Common</span>
<a name="line-19"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Agda</span><span class='hs-varop'>.</span><span class='hs-conid'>Syntax</span><span class='hs-varop'>.</span><span class='hs-conid'>Position</span>
<a name="line-20"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Agda</span><span class='hs-varop'>.</span><span class='hs-conid'>Syntax</span><span class='hs-varop'>.</span><span class='hs-conid'>Fixity</span>
<a name="line-21"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Agda</span><span class='hs-varop'>.</span><span class='hs-conid'>Syntax</span><span class='hs-varop'>.</span><span class='hs-conid'>Notation</span>
<a name="line-22"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Agda</span><span class='hs-varop'>.</span><span class='hs-conid'>Syntax</span><span class='hs-varop'>.</span><span class='hs-conid'>Abstract</span><span class='hs-varop'>.</span><span class='hs-conid'>Name</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>A</span>
<a name="line-23"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Agda</span><span class='hs-varop'>.</span><span class='hs-conid'>Syntax</span><span class='hs-varop'>.</span><span class='hs-conid'>Concrete</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>C</span>
<a name="line-24"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Agda</span><span class='hs-varop'>.</span><span class='hs-conid'>Syntax</span><span class='hs-varop'>.</span><span class='hs-conid'>Scope</span><span class='hs-varop'>.</span><span class='hs-conid'>Base</span>
<a name="line-25"></a>
<a name="line-26"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Agda</span><span class='hs-varop'>.</span><span class='hs-conid'>TypeChecking</span><span class='hs-varop'>.</span><span class='hs-conid'>Monad</span><span class='hs-varop'>.</span><span class='hs-conid'>Base</span>
<a name="line-27"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Agda</span><span class='hs-varop'>.</span><span class='hs-conid'>TypeChecking</span><span class='hs-varop'>.</span><span class='hs-conid'>Monad</span><span class='hs-varop'>.</span><span class='hs-conid'>State</span>
<a name="line-28"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Agda</span><span class='hs-varop'>.</span><span class='hs-conid'>TypeChecking</span><span class='hs-varop'>.</span><span class='hs-conid'>Monad</span><span class='hs-varop'>.</span><span class='hs-conid'>Options</span>
<a name="line-29"></a>
<a name="line-30"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Agda</span><span class='hs-varop'>.</span><span class='hs-conid'>Utils</span><span class='hs-varop'>.</span><span class='hs-conid'>Tuple</span>
<a name="line-31"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Agda</span><span class='hs-varop'>.</span><span class='hs-conid'>Utils</span><span class='hs-varop'>.</span><span class='hs-conid'>Fresh</span>
<a name="line-32"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Agda</span><span class='hs-varop'>.</span><span class='hs-conid'>Utils</span><span class='hs-varop'>.</span><span class='hs-conid'>Size</span>
<a name="line-33"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Agda</span><span class='hs-varop'>.</span><span class='hs-conid'>Utils</span><span class='hs-varop'>.</span><span class='hs-conid'>List</span>
<a name="line-34"></a>
<a name="line-35"></a><span class='hs-cpp'>#include "../../undefined.h"</span>
<a name="line-36"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Agda</span><span class='hs-varop'>.</span><span class='hs-conid'>Utils</span><span class='hs-varop'>.</span><span class='hs-conid'>Impossible</span>
<a name="line-37"></a>
<a name="line-38"></a><span class='hs-comment'>-- * The scope checking monad</span>
<a name="line-39"></a>
<a name="line-40"></a><a name="ScopeM"></a><span class='hs-comment'>-- | To simplify interaction between scope checking and type checking (in</span>
<a name="line-41"></a><a name="ScopeM"></a><span class='hs-comment'>-- particular when chasing imports), we use the same monad.</span>
<a name="line-42"></a><a name="ScopeM"></a><span class='hs-keyword'>type</span> <span class='hs-conid'>ScopeM</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>TCM</span>
<a name="line-43"></a>
<a name="line-44"></a><span class='hs-comment'>-- * Errors</span>
<a name="line-45"></a>
<a name="line-46"></a><a name="notInScope"></a><span class='hs-definition'>notInScope</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>C</span><span class='hs-varop'>.</span><span class='hs-conid'>QName</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ScopeM</span> <span class='hs-varid'>a</span>
<a name="line-47"></a><span class='hs-definition'>notInScope</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>typeError</span> <span class='hs-varop'>$</span> <span class='hs-conid'>NotInScope</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>x</span><span class='hs-keyglyph'>]</span>
<a name="line-48"></a>
<a name="line-49"></a><a name="isDatatypeModule"></a><span class='hs-definition'>isDatatypeModule</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-conid'>ModuleName</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ScopeM</span> <span class='hs-conid'>Bool</span>
<a name="line-50"></a><span class='hs-definition'>isDatatypeModule</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-51"></a> <span class='hs-varid'>sc</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getScope</span>
<a name="line-52"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-varid'>maybe</span> <span class='hs-sel'>__IMPOSSIBLE__</span> <span class='hs-varid'>scopeDatatypeModule</span> <span class='hs-layout'>(</span><span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>lookup</span> <span class='hs-varid'>m</span> <span class='hs-layout'>(</span><span class='hs-varid'>scopeModules</span> <span class='hs-varid'>sc</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-53"></a>
<a name="line-54"></a><span class='hs-comment'>-- * General operations</span>
<a name="line-55"></a>
<a name="line-56"></a><a name="getCurrentModule"></a><span class='hs-definition'>getCurrentModule</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ScopeM</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-conid'>ModuleName</span>
<a name="line-57"></a><span class='hs-definition'>getCurrentModule</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>setRange</span> <span class='hs-varid'>noRange</span> <span class='hs-varop'>.</span> <span class='hs-varid'>scopeCurrent</span> <span class='hs-varop'><$></span> <span class='hs-varid'>getScope</span>
<a name="line-58"></a>
<a name="line-59"></a><a name="setCurrentModule"></a><span class='hs-definition'>setCurrentModule</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-conid'>ModuleName</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ScopeM</span> <span class='hs-conid'>()</span>
<a name="line-60"></a><span class='hs-definition'>setCurrentModule</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>modifyScopeInfo</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>s</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>s</span> <span class='hs-layout'>{</span> <span class='hs-varid'>scopeCurrent</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>m</span> <span class='hs-layout'>}</span>
<a name="line-61"></a>
<a name="line-62"></a><a name="withCurrentModule"></a><span class='hs-definition'>withCurrentModule</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-conid'>ModuleName</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ScopeM</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ScopeM</span> <span class='hs-varid'>a</span>
<a name="line-63"></a><span class='hs-definition'>withCurrentModule</span> <span class='hs-varid'>new</span> <span class='hs-varid'>action</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-64"></a> <span class='hs-varid'>old</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getCurrentModule</span>
<a name="line-65"></a> <span class='hs-varid'>setCurrentModule</span> <span class='hs-varid'>new</span>
<a name="line-66"></a> <span class='hs-varid'>x</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>action</span>
<a name="line-67"></a> <span class='hs-varid'>setCurrentModule</span> <span class='hs-varid'>old</span>
<a name="line-68"></a> <span class='hs-varid'>return</span> <span class='hs-varid'>x</span>
<a name="line-69"></a>
<a name="line-70"></a><a name="withCurrentModule'"></a><span class='hs-definition'>withCurrentModule'</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>MonadTrans</span> <span class='hs-varid'>t</span><span class='hs-layout'>,</span> <span class='hs-conid'>Monad</span> <span class='hs-layout'>(</span><span class='hs-varid'>t</span> <span class='hs-conid'>ScopeM</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-conid'>ModuleName</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>t</span> <span class='hs-conid'>ScopeM</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>t</span> <span class='hs-conid'>ScopeM</span> <span class='hs-varid'>a</span>
<a name="line-71"></a><span class='hs-definition'>withCurrentModule'</span> <span class='hs-varid'>new</span> <span class='hs-varid'>action</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-72"></a> <span class='hs-varid'>old</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>lift</span> <span class='hs-varid'>getCurrentModule</span>
<a name="line-73"></a> <span class='hs-varid'>lift</span> <span class='hs-varop'>$</span> <span class='hs-varid'>setCurrentModule</span> <span class='hs-varid'>new</span>
<a name="line-74"></a> <span class='hs-varid'>x</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>action</span>
<a name="line-75"></a> <span class='hs-varid'>lift</span> <span class='hs-varop'>$</span> <span class='hs-varid'>setCurrentModule</span> <span class='hs-varid'>old</span>
<a name="line-76"></a> <span class='hs-varid'>return</span> <span class='hs-varid'>x</span>
<a name="line-77"></a>
<a name="line-78"></a><a name="getNamedScope"></a><span class='hs-definition'>getNamedScope</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-conid'>ModuleName</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ScopeM</span> <span class='hs-conid'>Scope</span>
<a name="line-79"></a><span class='hs-definition'>getNamedScope</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-80"></a> <span class='hs-varid'>scope</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getScope</span>
<a name="line-81"></a> <span class='hs-keyword'>case</span> <span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>lookup</span> <span class='hs-varid'>m</span> <span class='hs-layout'>(</span><span class='hs-varid'>scopeModules</span> <span class='hs-varid'>scope</span><span class='hs-layout'>)</span> <span class='hs-keyword'>of</span>
<a name="line-82"></a> <span class='hs-conid'>Just</span> <span class='hs-varid'>s</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-varid'>s</span>
<a name="line-83"></a> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-84"></a> <span class='hs-varid'>reportSLn</span> <span class='hs-str'>""</span> <span class='hs-num'>0</span> <span class='hs-varop'>$</span> <span class='hs-str'>"ERROR: In scope\n"</span> <span class='hs-varop'>++</span> <span class='hs-varid'>show</span> <span class='hs-varid'>scope</span> <span class='hs-varop'>++</span> <span class='hs-str'>"\nNO SUCH SCOPE "</span> <span class='hs-varop'>++</span> <span class='hs-varid'>show</span> <span class='hs-varid'>m</span>
<a name="line-85"></a> <span class='hs-sel'>__IMPOSSIBLE__</span>
<a name="line-86"></a>
<a name="line-87"></a><a name="getCurrentScope"></a><span class='hs-definition'>getCurrentScope</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ScopeM</span> <span class='hs-conid'>Scope</span>
<a name="line-88"></a><span class='hs-definition'>getCurrentScope</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>getNamedScope</span> <span class='hs-varop'>=<<</span> <span class='hs-varid'>getCurrentModule</span>
<a name="line-89"></a>
<a name="line-90"></a><a name="createModule"></a><span class='hs-comment'>-- | Create a new module with an empty scope (Bool is True if it is a datatype module)</span>
<a name="line-91"></a><span class='hs-definition'>createModule</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Bool</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-conid'>ModuleName</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ScopeM</span> <span class='hs-conid'>()</span>
<a name="line-92"></a><span class='hs-definition'>createModule</span> <span class='hs-varid'>b</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-93"></a> <span class='hs-varid'>s</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getCurrentScope</span>
<a name="line-94"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>parents</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>scopeName</span> <span class='hs-varid'>s</span> <span class='hs-conop'>:</span> <span class='hs-varid'>scopeParents</span> <span class='hs-varid'>s</span>
<a name="line-95"></a> <span class='hs-varid'>modifyScopes</span> <span class='hs-varop'>$</span> <span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>insert</span> <span class='hs-varid'>m</span> <span class='hs-varid'>emptyScope</span> <span class='hs-layout'>{</span> <span class='hs-varid'>scopeName</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>m</span>
<a name="line-96"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>scopeParents</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>parents</span>
<a name="line-97"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>scopeDatatypeModule</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>b</span> <span class='hs-layout'>}</span>
<a name="line-98"></a>
<a name="line-99"></a><a name="modifyScopeInfo"></a><span class='hs-comment'>-- | Apply a function to the scope info.</span>
<a name="line-100"></a><span class='hs-definition'>modifyScopeInfo</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>ScopeInfo</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ScopeInfo</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ScopeM</span> <span class='hs-conid'>()</span>
<a name="line-101"></a><span class='hs-definition'>modifyScopeInfo</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-102"></a> <span class='hs-varid'>scope</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getScope</span>
<a name="line-103"></a> <span class='hs-varid'>setScope</span> <span class='hs-varop'>$</span> <span class='hs-varid'>f</span> <span class='hs-varid'>scope</span>
<a name="line-104"></a>
<a name="line-105"></a><a name="modifyScopes"></a><span class='hs-comment'>-- | Apply a function to the scope map.</span>
<a name="line-106"></a><span class='hs-definition'>modifyScopes</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Map</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-conid'>ModuleName</span> <span class='hs-conid'>Scope</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Map</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-conid'>ModuleName</span> <span class='hs-conid'>Scope</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ScopeM</span> <span class='hs-conid'>()</span>
<a name="line-107"></a><span class='hs-definition'>modifyScopes</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>modifyScopeInfo</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>s</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>s</span> <span class='hs-layout'>{</span> <span class='hs-varid'>scopeModules</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>f</span> <span class='hs-varop'>$</span> <span class='hs-varid'>scopeModules</span> <span class='hs-varid'>s</span> <span class='hs-layout'>}</span>
<a name="line-108"></a>
<a name="line-109"></a><a name="modifyNamedScope"></a><span class='hs-comment'>-- | Apply a function to the given scope.</span>
<a name="line-110"></a><span class='hs-definition'>modifyNamedScope</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-conid'>ModuleName</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>Scope</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Scope</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ScopeM</span> <span class='hs-conid'>()</span>
<a name="line-111"></a><span class='hs-definition'>modifyNamedScope</span> <span class='hs-varid'>m</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>modifyScopes</span> <span class='hs-varop'>$</span> <span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>mapWithKey</span> <span class='hs-varid'>f'</span>
<a name="line-112"></a> <span class='hs-keyword'>where</span>
<a name="line-113"></a> <span class='hs-varid'>f'</span> <span class='hs-varid'>m'</span> <span class='hs-varid'>s</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>m'</span> <span class='hs-varop'>==</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>f</span> <span class='hs-varid'>s</span>
<a name="line-114"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>s</span>
<a name="line-115"></a>
<a name="line-116"></a><a name="modifyCurrentScope"></a><span class='hs-comment'>-- | Apply a function to the current scope.</span>
<a name="line-117"></a><span class='hs-definition'>modifyCurrentScope</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Scope</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Scope</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ScopeM</span> <span class='hs-conid'>()</span>
<a name="line-118"></a><span class='hs-definition'>modifyCurrentScope</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-119"></a> <span class='hs-varid'>m</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getCurrentModule</span>
<a name="line-120"></a> <span class='hs-varid'>modifyNamedScope</span> <span class='hs-varid'>m</span> <span class='hs-varid'>f</span>
<a name="line-121"></a>
<a name="line-122"></a><a name="modifyNamedScopeM"></a><span class='hs-comment'>-- | Apply a monadic function to the top scope.</span>
<a name="line-123"></a><span class='hs-definition'>modifyNamedScopeM</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-conid'>ModuleName</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>Scope</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ScopeM</span> <span class='hs-conid'>Scope</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ScopeM</span> <span class='hs-conid'>()</span>
<a name="line-124"></a><span class='hs-definition'>modifyNamedScopeM</span> <span class='hs-varid'>m</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-125"></a> <span class='hs-varid'>s</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getNamedScope</span> <span class='hs-varid'>m</span>
<a name="line-126"></a> <span class='hs-varid'>s'</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>f</span> <span class='hs-varid'>s</span>
<a name="line-127"></a> <span class='hs-varid'>modifyNamedScope</span> <span class='hs-varid'>m</span> <span class='hs-layout'>(</span><span class='hs-varid'>const</span> <span class='hs-varid'>s'</span><span class='hs-layout'>)</span>
<a name="line-128"></a>
<a name="line-129"></a><a name="modifyCurrentScopeM"></a><span class='hs-definition'>modifyCurrentScopeM</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Scope</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ScopeM</span> <span class='hs-conid'>Scope</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ScopeM</span> <span class='hs-conid'>()</span>
<a name="line-130"></a><span class='hs-definition'>modifyCurrentScopeM</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-131"></a> <span class='hs-varid'>m</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getCurrentModule</span>
<a name="line-132"></a> <span class='hs-varid'>modifyNamedScopeM</span> <span class='hs-varid'>m</span> <span class='hs-varid'>f</span>
<a name="line-133"></a>
<a name="line-134"></a><a name="modifyCurrentNameSpace"></a><span class='hs-comment'>-- | Apply a function to the public or private name space.</span>
<a name="line-135"></a><span class='hs-definition'>modifyCurrentNameSpace</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>NameSpaceId</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>NameSpace</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>NameSpace</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ScopeM</span> <span class='hs-conid'>()</span>
<a name="line-136"></a><span class='hs-definition'>modifyCurrentNameSpace</span> <span class='hs-varid'>acc</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>modifyCurrentScope</span> <span class='hs-varid'>action</span>
<a name="line-137"></a> <span class='hs-keyword'>where</span>
<a name="line-138"></a> <span class='hs-varid'>action</span> <span class='hs-varid'>s</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>s</span> <span class='hs-layout'>{</span> <span class='hs-varid'>scopeNameSpaces</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>[</span> <span class='hs-layout'>(</span><span class='hs-varid'>nsid</span><span class='hs-layout'>,</span> <span class='hs-varid'>f'</span> <span class='hs-varid'>nsid</span> <span class='hs-varid'>ns</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>|</span> <span class='hs-layout'>(</span><span class='hs-varid'>nsid</span><span class='hs-layout'>,</span> <span class='hs-varid'>ns</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>scopeNameSpaces</span> <span class='hs-varid'>s</span> <span class='hs-keyglyph'>]</span> <span class='hs-layout'>}</span>
<a name="line-139"></a>
<a name="line-140"></a> <span class='hs-varid'>f'</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>a</span> <span class='hs-varop'>==</span> <span class='hs-varid'>acc</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>f</span>
<a name="line-141"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>id</span>
<a name="line-142"></a>
<a name="line-143"></a><a name="setContextPrecedence"></a><span class='hs-definition'>setContextPrecedence</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Precedence</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ScopeM</span> <span class='hs-conid'>()</span>
<a name="line-144"></a><span class='hs-definition'>setContextPrecedence</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>modifyScopeInfo</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>s</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>s</span> <span class='hs-layout'>{</span> <span class='hs-varid'>scopePrecedence</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>p</span> <span class='hs-layout'>}</span>
<a name="line-145"></a>
<a name="line-146"></a><a name="getContextPrecedence"></a><span class='hs-definition'>getContextPrecedence</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ScopeM</span> <span class='hs-conid'>Precedence</span>
<a name="line-147"></a><span class='hs-definition'>getContextPrecedence</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>scopePrecedence</span> <span class='hs-varop'><$></span> <span class='hs-varid'>getScope</span>
<a name="line-148"></a>
<a name="line-149"></a><a name="withContextPrecedence"></a><span class='hs-definition'>withContextPrecedence</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Precedence</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ScopeM</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ScopeM</span> <span class='hs-varid'>a</span>
<a name="line-150"></a><span class='hs-definition'>withContextPrecedence</span> <span class='hs-varid'>p</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-151"></a> <span class='hs-varid'>p'</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getContextPrecedence</span>
<a name="line-152"></a> <span class='hs-varid'>setContextPrecedence</span> <span class='hs-varid'>p</span>
<a name="line-153"></a> <span class='hs-varid'>x</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>m</span>
<a name="line-154"></a> <span class='hs-varid'>setContextPrecedence</span> <span class='hs-varid'>p'</span>
<a name="line-155"></a> <span class='hs-varid'>return</span> <span class='hs-varid'>x</span>
<a name="line-156"></a>
<a name="line-157"></a><a name="getLocalVars"></a><span class='hs-definition'>getLocalVars</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ScopeM</span> <span class='hs-conid'>LocalVars</span>
<a name="line-158"></a><span class='hs-definition'>getLocalVars</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>scopeLocals</span> <span class='hs-varop'><$></span> <span class='hs-varid'>getScope</span>
<a name="line-159"></a>
<a name="line-160"></a><a name="setLocalVars"></a><span class='hs-definition'>setLocalVars</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>LocalVars</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ScopeM</span> <span class='hs-conid'>()</span>
<a name="line-161"></a><span class='hs-definition'>setLocalVars</span> <span class='hs-varid'>vars</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>modifyScope</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>s</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>s</span> <span class='hs-layout'>{</span> <span class='hs-varid'>scopeLocals</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>vars</span> <span class='hs-layout'>}</span>
<a name="line-162"></a>
<a name="line-163"></a><a name="withLocalVars"></a><span class='hs-comment'>-- | Run a computation without changing the local variables.</span>
<a name="line-164"></a><span class='hs-definition'>withLocalVars</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ScopeM</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ScopeM</span> <span class='hs-varid'>a</span>
<a name="line-165"></a><span class='hs-definition'>withLocalVars</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-166"></a> <span class='hs-varid'>vars</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getLocalVars</span>
<a name="line-167"></a> <span class='hs-varid'>x</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>m</span>
<a name="line-168"></a> <span class='hs-varid'>setLocalVars</span> <span class='hs-varid'>vars</span>
<a name="line-169"></a> <span class='hs-varid'>return</span> <span class='hs-varid'>x</span>
<a name="line-170"></a>
<a name="line-171"></a><span class='hs-comment'>-- * Names</span>
<a name="line-172"></a>
<a name="line-173"></a><a name="freshAbstractName"></a><span class='hs-comment'>-- | Create a fresh abstract name from a concrete name.</span>
<a name="line-174"></a><span class='hs-definition'>freshAbstractName</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Fixity'</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>C</span><span class='hs-varop'>.</span><span class='hs-conid'>Name</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ScopeM</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-conid'>Name</span>
<a name="line-175"></a><span class='hs-definition'>freshAbstractName</span> <span class='hs-varid'>fx</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-176"></a> <span class='hs-varid'>i</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>fresh</span>
<a name="line-177"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-conid'>Name</span> <span class='hs-varid'>i</span> <span class='hs-varid'>x</span> <span class='hs-layout'>(</span><span class='hs-varid'>getRange</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-varid'>fx</span>
<a name="line-178"></a>
<a name="line-179"></a><a name="freshAbstractName_"></a><span class='hs-comment'>-- | @freshAbstractName_ = freshAbstractName defaultFixity@</span>
<a name="line-180"></a><span class='hs-definition'>freshAbstractName_</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>C</span><span class='hs-varop'>.</span><span class='hs-conid'>Name</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ScopeM</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-conid'>Name</span>
<a name="line-181"></a><span class='hs-definition'>freshAbstractName_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>freshAbstractName</span> <span class='hs-varid'>defaultFixity'</span>
<a name="line-182"></a>
<a name="line-183"></a><a name="freshAbstractQName"></a><span class='hs-comment'>-- | Create a fresh abstract qualified name.</span>
<a name="line-184"></a><span class='hs-definition'>freshAbstractQName</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Fixity'</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>C</span><span class='hs-varop'>.</span><span class='hs-conid'>Name</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ScopeM</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-conid'>QName</span>
<a name="line-185"></a><span class='hs-definition'>freshAbstractQName</span> <span class='hs-varid'>fx</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-186"></a> <span class='hs-varid'>y</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>freshAbstractName</span> <span class='hs-varid'>fx</span> <span class='hs-varid'>x</span>
<a name="line-187"></a> <span class='hs-varid'>m</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getCurrentModule</span>
<a name="line-188"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>qualify</span> <span class='hs-varid'>m</span> <span class='hs-varid'>y</span>
<a name="line-189"></a>
<a name="line-190"></a><span class='hs-comment'>-- * Resolving names</span>
<a name="line-191"></a>
<a name="line-192"></a><a name="ResolvedName"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>ResolvedName</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>VarName</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-conid'>Name</span>
<a name="line-193"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>DefinedName</span> <span class='hs-conid'>Access</span> <span class='hs-conid'>AbstractName</span>
<a name="line-194"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>FieldName</span> <span class='hs-conid'>AbstractName</span> <span class='hs-comment'>-- ^ record fields names need to be distinguished to parse copatterns</span>
<a name="line-195"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>ConstructorName</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>AbstractName</span><span class='hs-keyglyph'>]</span>
<a name="line-196"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>PatternSynResName</span> <span class='hs-conid'>AbstractName</span>
<a name="line-197"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>UnknownName</span>
<a name="line-198"></a> <span class='hs-keyword'>deriving</span> <span class='hs-layout'>(</span><span class='hs-conid'>Show</span><span class='hs-layout'>)</span>
<a name="line-199"></a>
<a name="line-200"></a><a name="resolveName"></a><span class='hs-comment'>-- | Look up the abstract name referred to by a given concrete name.</span>
<a name="line-201"></a><span class='hs-definition'>resolveName</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>C</span><span class='hs-varop'>.</span><span class='hs-conid'>QName</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ScopeM</span> <span class='hs-conid'>ResolvedName</span>
<a name="line-202"></a><span class='hs-definition'>resolveName</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-203"></a> <span class='hs-varid'>scope</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getScope</span>
<a name="line-204"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>vars</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>map</span> <span class='hs-layout'>(</span><span class='hs-conid'>C</span><span class='hs-varop'>.</span><span class='hs-conid'>QName</span> <span class='hs-varop'>-*-</span> <span class='hs-varid'>id</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-varid'>scopeLocals</span> <span class='hs-varid'>scope</span>
<a name="line-205"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>lookup</span> <span class='hs-varid'>x</span> <span class='hs-varid'>vars</span> <span class='hs-keyword'>of</span>
<a name="line-206"></a> <span class='hs-conid'>Just</span> <span class='hs-varid'>y</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>VarName</span> <span class='hs-varop'>$</span> <span class='hs-varid'>y</span> <span class='hs-layout'>{</span> <span class='hs-varid'>nameConcrete</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>unqualify</span> <span class='hs-varid'>x</span> <span class='hs-layout'>}</span>
<a name="line-207"></a> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>case</span> <span class='hs-varid'>scopeLookup'</span> <span class='hs-varid'>x</span> <span class='hs-varid'>scope</span> <span class='hs-keyword'>of</span>
<a name="line-208"></a> <span class='hs-conid'>[]</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-conid'>UnknownName</span>
<a name="line-209"></a> <span class='hs-varid'>ds</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>all</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-varop'>==</span><span class='hs-conid'>ConName</span><span class='hs-layout'>)</span> <span class='hs-varop'>.</span> <span class='hs-varid'>anameKind</span> <span class='hs-varop'>.</span> <span class='hs-varid'>fst</span><span class='hs-layout'>)</span> <span class='hs-varid'>ds</span> <span class='hs-keyglyph'>-></span>
<a name="line-210"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>ConstructorName</span>
<a name="line-211"></a> <span class='hs-varop'>$</span> <span class='hs-varid'>map</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span> <span class='hs-layout'>(</span><span class='hs-varid'>d</span><span class='hs-layout'>,</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>updateConcreteName</span> <span class='hs-varid'>d</span> <span class='hs-varop'>$</span> <span class='hs-varid'>unqualify</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-varid'>ds</span>
<a name="line-212"></a> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-varid'>d</span><span class='hs-layout'>,</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>anameKind</span> <span class='hs-varid'>d</span> <span class='hs-varop'>==</span> <span class='hs-conid'>FldName</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>FieldName</span> <span class='hs-varop'>$</span> <span class='hs-varid'>updateConcreteName</span> <span class='hs-varid'>d</span> <span class='hs-layout'>(</span><span class='hs-varid'>unqualify</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span>
<a name="line-213"></a> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-varid'>d</span><span class='hs-layout'>,</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>anameKind</span> <span class='hs-varid'>d</span> <span class='hs-varop'>==</span> <span class='hs-conid'>PatternSynName</span> <span class='hs-keyglyph'>-></span>
<a name="line-214"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>PatternSynResName</span> <span class='hs-layout'>(</span><span class='hs-varid'>updateConcreteName</span> <span class='hs-varid'>d</span> <span class='hs-varop'>$</span> <span class='hs-varid'>unqualify</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span>
<a name="line-215"></a> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-varid'>d</span><span class='hs-layout'>,</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>DefinedName</span> <span class='hs-varid'>a</span> <span class='hs-varop'>$</span> <span class='hs-varid'>updateConcreteName</span> <span class='hs-varid'>d</span> <span class='hs-layout'>(</span><span class='hs-varid'>unqualify</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span>
<a name="line-216"></a> <span class='hs-varid'>ds</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>typeError</span> <span class='hs-varop'>$</span> <span class='hs-conid'>AmbiguousName</span> <span class='hs-varid'>x</span> <span class='hs-layout'>(</span><span class='hs-varid'>map</span> <span class='hs-layout'>(</span><span class='hs-varid'>anameName</span> <span class='hs-varop'>.</span> <span class='hs-varid'>fst</span><span class='hs-layout'>)</span> <span class='hs-varid'>ds</span><span class='hs-layout'>)</span>
<a name="line-217"></a> <span class='hs-keyword'>where</span>
<a name="line-218"></a> <span class='hs-varid'>updateConcreteName</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>AbstractName</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>C</span><span class='hs-varop'>.</span><span class='hs-conid'>Name</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>AbstractName</span>
<a name="line-219"></a> <span class='hs-varid'>updateConcreteName</span> <span class='hs-varid'>d</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>AbsName</span> <span class='hs-layout'>{</span> <span class='hs-varid'>anameName</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>an</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-conid'>QName</span> <span class='hs-layout'>{</span> <span class='hs-varid'>qnameName</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>qn</span> <span class='hs-layout'>}</span><span class='hs-layout'>)</span> <span class='hs-layout'>}</span><span class='hs-layout'>)</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span>
<a name="line-220"></a> <span class='hs-varid'>d</span> <span class='hs-layout'>{</span> <span class='hs-varid'>anameName</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>an</span> <span class='hs-layout'>{</span> <span class='hs-varid'>qnameName</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>qn</span> <span class='hs-layout'>{</span> <span class='hs-varid'>nameConcrete</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>x</span> <span class='hs-layout'>}</span> <span class='hs-layout'>}</span> <span class='hs-layout'>}</span>
<a name="line-221"></a>
<a name="line-222"></a><a name="resolveModule"></a><span class='hs-comment'>-- | Look up a module in the scope.</span>
<a name="line-223"></a><span class='hs-definition'>resolveModule</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>C</span><span class='hs-varop'>.</span><span class='hs-conid'>QName</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ScopeM</span> <span class='hs-conid'>AbstractModule</span>
<a name="line-224"></a><span class='hs-definition'>resolveModule</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-225"></a> <span class='hs-varid'>ms</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>scopeLookup</span> <span class='hs-varid'>x</span> <span class='hs-varop'><$></span> <span class='hs-varid'>getScope</span>
<a name="line-226"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>ms</span> <span class='hs-keyword'>of</span>
<a name="line-227"></a> <span class='hs-keyglyph'>[</span><span class='hs-conid'>AbsModule</span> <span class='hs-varid'>m</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>AbsModule</span> <span class='hs-layout'>(</span><span class='hs-varid'>m</span> <span class='hs-varop'>`withRangesOfQ`</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span>
<a name="line-228"></a> <span class='hs-conid'>[]</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>typeError</span> <span class='hs-varop'>$</span> <span class='hs-conid'>NoSuchModule</span> <span class='hs-varid'>x</span>
<a name="line-229"></a> <span class='hs-varid'>ms</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>typeError</span> <span class='hs-varop'>$</span> <span class='hs-conid'>AmbiguousModule</span> <span class='hs-varid'>x</span> <span class='hs-layout'>(</span><span class='hs-varid'>map</span> <span class='hs-varid'>amodName</span> <span class='hs-varid'>ms</span><span class='hs-layout'>)</span>
<a name="line-230"></a>
<a name="line-231"></a><a name="getFixity"></a><span class='hs-comment'>-- | Get the fixity of a name. The name is assumed to be in scope.</span>
<a name="line-232"></a><span class='hs-definition'>getFixity</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>C</span><span class='hs-varop'>.</span><span class='hs-conid'>QName</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ScopeM</span> <span class='hs-conid'>Fixity'</span>
<a name="line-233"></a><span class='hs-definition'>getFixity</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-234"></a> <span class='hs-varid'>r</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>resolveName</span> <span class='hs-varid'>x</span>
<a name="line-235"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>r</span> <span class='hs-keyword'>of</span>
<a name="line-236"></a> <span class='hs-conid'>VarName</span> <span class='hs-varid'>y</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-varid'>nameFixity</span> <span class='hs-varid'>y</span>
<a name="line-237"></a> <span class='hs-conid'>DefinedName</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>d</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-varid'>nameFixity</span> <span class='hs-varop'>$</span> <span class='hs-varid'>qnameName</span> <span class='hs-varop'>$</span> <span class='hs-varid'>anameName</span> <span class='hs-varid'>d</span>
<a name="line-238"></a> <span class='hs-conid'>FieldName</span> <span class='hs-varid'>d</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-varid'>nameFixity</span> <span class='hs-varop'>$</span> <span class='hs-varid'>qnameName</span> <span class='hs-varop'>$</span> <span class='hs-varid'>anameName</span> <span class='hs-varid'>d</span>
<a name="line-239"></a> <span class='hs-conid'>ConstructorName</span> <span class='hs-varid'>ds</span>
<a name="line-240"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>null</span> <span class='hs-varid'>fs</span> <span class='hs-keyglyph'>-></span> <span class='hs-sel'>__IMPOSSIBLE__</span>
<a name="line-241"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>allEqual</span> <span class='hs-varid'>fs</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-varid'>head</span> <span class='hs-varid'>fs</span>
<a name="line-242"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-varid'>defaultFixity'</span>
<a name="line-243"></a> <span class='hs-keyword'>where</span>
<a name="line-244"></a> <span class='hs-varid'>fs</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>map</span> <span class='hs-layout'>(</span><span class='hs-varid'>nameFixity</span> <span class='hs-varop'>.</span> <span class='hs-varid'>qnameName</span> <span class='hs-varop'>.</span> <span class='hs-varid'>anameName</span><span class='hs-layout'>)</span> <span class='hs-varid'>ds</span>
<a name="line-245"></a> <span class='hs-conid'>PatternSynResName</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-varid'>nameFixity</span> <span class='hs-varop'>$</span> <span class='hs-varid'>qnameName</span> <span class='hs-varop'>$</span> <span class='hs-varid'>anameName</span> <span class='hs-varid'>n</span>
<a name="line-246"></a> <span class='hs-conid'>UnknownName</span> <span class='hs-keyglyph'>-></span> <span class='hs-sel'>__IMPOSSIBLE__</span>
<a name="line-247"></a>
<a name="line-248"></a><span class='hs-comment'>-- * Binding names</span>
<a name="line-249"></a>
<a name="line-250"></a><a name="bindVariable"></a><span class='hs-comment'>-- | Bind a variable. The abstract name is supplied as the second argument.</span>
<a name="line-251"></a><span class='hs-definition'>bindVariable</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>C</span><span class='hs-varop'>.</span><span class='hs-conid'>Name</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-conid'>Name</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ScopeM</span> <span class='hs-conid'>()</span>
<a name="line-252"></a><span class='hs-definition'>bindVariable</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-253"></a> <span class='hs-varid'>scope</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getScope</span>
<a name="line-254"></a> <span class='hs-varid'>setScope</span> <span class='hs-varid'>scope</span> <span class='hs-layout'>{</span> <span class='hs-varid'>scopeLocals</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>x</span><span class='hs-layout'>,</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span> <span class='hs-conop'>:</span> <span class='hs-varid'>scopeLocals</span> <span class='hs-varid'>scope</span> <span class='hs-layout'>}</span>
<a name="line-255"></a>
<a name="line-256"></a><a name="bindName"></a><span class='hs-comment'>-- | Bind a defined name. Must not shadow anything.</span>
<a name="line-257"></a><span class='hs-definition'>bindName</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Access</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>KindOfName</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>C</span><span class='hs-varop'>.</span><span class='hs-conid'>Name</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-conid'>QName</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ScopeM</span> <span class='hs-conid'>()</span>
<a name="line-258"></a><span class='hs-definition'>bindName</span> <span class='hs-varid'>acc</span> <span class='hs-varid'>kind</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-259"></a> <span class='hs-varid'>r</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>resolveName</span> <span class='hs-layout'>(</span><span class='hs-conid'>C</span><span class='hs-varop'>.</span><span class='hs-conid'>QName</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span>
<a name="line-260"></a> <span class='hs-varid'>ys</span> <span class='hs-keyglyph'><-</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>r</span> <span class='hs-keyword'>of</span>
<a name="line-261"></a> <span class='hs-conid'>FieldName</span> <span class='hs-varid'>d</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>typeError</span> <span class='hs-varop'>$</span> <span class='hs-conid'>ClashingDefinition</span> <span class='hs-layout'>(</span><span class='hs-conid'>C</span><span class='hs-varop'>.</span><span class='hs-conid'>QName</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-varid'>anameName</span> <span class='hs-varid'>d</span>
<a name="line-262"></a> <span class='hs-conid'>DefinedName</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>d</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>typeError</span> <span class='hs-varop'>$</span> <span class='hs-conid'>ClashingDefinition</span> <span class='hs-layout'>(</span><span class='hs-conid'>C</span><span class='hs-varop'>.</span><span class='hs-conid'>QName</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-varid'>anameName</span> <span class='hs-varid'>d</span>
<a name="line-263"></a> <span class='hs-conid'>VarName</span> <span class='hs-varid'>z</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>typeError</span> <span class='hs-varop'>$</span> <span class='hs-conid'>ClashingDefinition</span> <span class='hs-layout'>(</span><span class='hs-conid'>C</span><span class='hs-varop'>.</span><span class='hs-conid'>QName</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>qualify</span> <span class='hs-layout'>(</span><span class='hs-varid'>mnameFromList</span> <span class='hs-conid'>[]</span><span class='hs-layout'>)</span> <span class='hs-varid'>z</span>
<a name="line-264"></a> <span class='hs-conid'>ConstructorName</span> <span class='hs-conid'>[]</span> <span class='hs-keyglyph'>-></span> <span class='hs-sel'>__IMPOSSIBLE__</span>
<a name="line-265"></a> <span class='hs-conid'>ConstructorName</span> <span class='hs-varid'>ds</span>
<a name="line-266"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>kind</span> <span class='hs-varop'>==</span> <span class='hs-conid'>ConName</span> <span class='hs-varop'>&&</span> <span class='hs-varid'>all</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-varop'>==</span><span class='hs-conid'>ConName</span><span class='hs-layout'>)</span> <span class='hs-varop'>.</span> <span class='hs-varid'>anameKind</span><span class='hs-layout'>)</span> <span class='hs-varid'>ds</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-keyglyph'>[</span> <span class='hs-conid'>AbsName</span> <span class='hs-varid'>y</span> <span class='hs-varid'>kind</span> <span class='hs-keyglyph'>]</span>
<a name="line-267"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>typeError</span> <span class='hs-varop'>$</span> <span class='hs-conid'>ClashingDefinition</span> <span class='hs-layout'>(</span><span class='hs-conid'>C</span><span class='hs-varop'>.</span><span class='hs-conid'>QName</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-varid'>anameName</span> <span class='hs-layout'>(</span><span class='hs-varid'>head'</span> <span class='hs-varid'>ds</span><span class='hs-layout'>)</span>
<a name="line-268"></a> <span class='hs-conid'>PatternSynResName</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>typeError</span> <span class='hs-varop'>$</span> <span class='hs-conid'>ClashingDefinition</span> <span class='hs-layout'>(</span><span class='hs-conid'>C</span><span class='hs-varop'>.</span><span class='hs-conid'>QName</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-varid'>anameName</span> <span class='hs-varid'>n</span>
<a name="line-269"></a> <span class='hs-conid'>UnknownName</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>AbsName</span> <span class='hs-varid'>y</span> <span class='hs-varid'>kind</span><span class='hs-keyglyph'>]</span>
<a name="line-270"></a> <span class='hs-varid'>modifyCurrentScope</span> <span class='hs-varop'>$</span> <span class='hs-varid'>addNamesToScope</span> <span class='hs-layout'>(</span><span class='hs-varid'>localNameSpace</span> <span class='hs-varid'>acc</span><span class='hs-layout'>)</span> <span class='hs-varid'>x</span> <span class='hs-varid'>ys</span>
<a name="line-271"></a> <span class='hs-keyword'>where</span>
<a name="line-272"></a> <span class='hs-varid'>head'</span> <span class='hs-conid'>[]</span> <span class='hs-keyglyph'>=</span> <span class='hs-comment'>{- ' -}</span> <span class='hs-sel'>__IMPOSSIBLE__</span>
<a name="line-273"></a> <span class='hs-varid'>head'</span> <span class='hs-layout'>(</span><span class='hs-varid'>x</span><span class='hs-conop'>:</span><span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>x</span>
<a name="line-274"></a>
<a name="line-275"></a><a name="bindModule"></a><span class='hs-comment'>-- | Bind a module name.</span>
<a name="line-276"></a><span class='hs-definition'>bindModule</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Access</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>C</span><span class='hs-varop'>.</span><span class='hs-conid'>Name</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-conid'>ModuleName</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ScopeM</span> <span class='hs-conid'>()</span>
<a name="line-277"></a><span class='hs-definition'>bindModule</span> <span class='hs-varid'>acc</span> <span class='hs-varid'>x</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>modifyCurrentScope</span> <span class='hs-varop'>$</span>
<a name="line-278"></a> <span class='hs-varid'>addModuleToScope</span> <span class='hs-layout'>(</span><span class='hs-varid'>localNameSpace</span> <span class='hs-varid'>acc</span><span class='hs-layout'>)</span> <span class='hs-varid'>x</span> <span class='hs-layout'>(</span><span class='hs-conid'>AbsModule</span> <span class='hs-varid'>m</span><span class='hs-layout'>)</span>
<a name="line-279"></a>
<a name="line-280"></a><a name="bindQModule"></a><span class='hs-comment'>-- | Bind a qualified module name. Adds it to the imports field of the scope.</span>
<a name="line-281"></a><span class='hs-definition'>bindQModule</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Access</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>C</span><span class='hs-varop'>.</span><span class='hs-conid'>QName</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-conid'>ModuleName</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ScopeM</span> <span class='hs-conid'>()</span>
<a name="line-282"></a><span class='hs-definition'>bindQModule</span> <span class='hs-varid'>acc</span> <span class='hs-varid'>q</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>modifyCurrentScope</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>s</span> <span class='hs-keyglyph'>-></span>
<a name="line-283"></a> <span class='hs-varid'>s</span> <span class='hs-layout'>{</span> <span class='hs-varid'>scopeImports</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>insert</span> <span class='hs-varid'>q</span> <span class='hs-varid'>m</span> <span class='hs-layout'>(</span><span class='hs-varid'>scopeImports</span> <span class='hs-varid'>s</span><span class='hs-layout'>)</span> <span class='hs-layout'>}</span>
<a name="line-284"></a>
<a name="line-285"></a><span class='hs-comment'>-- * Module manipulation operations</span>
<a name="line-286"></a>
<a name="line-287"></a><a name="stripNoNames"></a><span class='hs-comment'>-- | Clear the scope of any no names.</span>
<a name="line-288"></a><span class='hs-definition'>stripNoNames</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ScopeM</span> <span class='hs-conid'>()</span>
<a name="line-289"></a><span class='hs-definition'>stripNoNames</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>modifyScopes</span> <span class='hs-varop'>$</span> <span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>map</span> <span class='hs-varid'>strip</span>
<a name="line-290"></a> <span class='hs-keyword'>where</span>
<a name="line-291"></a> <span class='hs-varid'>strip</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>mapScope</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>stripN</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>stripN</span><span class='hs-layout'>)</span>
<a name="line-292"></a> <span class='hs-varid'>stripN</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>filterWithKey</span> <span class='hs-layout'>(</span><span class='hs-varid'>const</span> <span class='hs-varop'>.</span> <span class='hs-varid'>notNoName</span><span class='hs-layout'>)</span> <span class='hs-varid'>m</span>
<a name="line-293"></a> <span class='hs-varid'>notNoName</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>not</span> <span class='hs-varop'>.</span> <span class='hs-varid'>isNoName</span>
<a name="line-294"></a>
<a name="line-295"></a><a name="Ren"></a><span class='hs-keyword'>type</span> <span class='hs-conid'>Ren</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Map</span> <span class='hs-varid'>a</span> <span class='hs-varid'>a</span>
<a name="line-296"></a><a name="Out"></a><span class='hs-keyword'>type</span> <span class='hs-conid'>Out</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ren</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-conid'>ModuleName</span><span class='hs-layout'>,</span> <span class='hs-conid'>Ren</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-conid'>QName</span><span class='hs-layout'>)</span>
<a name="line-297"></a><a name="WSM"></a><span class='hs-keyword'>type</span> <span class='hs-conid'>WSM</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>StateT</span> <span class='hs-conid'>Out</span> <span class='hs-conid'>ScopeM</span>
<a name="line-298"></a>
<a name="line-299"></a><a name="copyScope"></a><span class='hs-comment'>-- | Create a new scope with the given name from an old scope. Renames</span>
<a name="line-300"></a><span class='hs-comment'>-- public names in the old scope to match the new name and returns the</span>
<a name="line-301"></a><span class='hs-comment'>-- renamings.</span>
<a name="line-302"></a><span class='hs-definition'>copyScope</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-conid'>ModuleName</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Scope</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ScopeM</span> <span class='hs-layout'>(</span><span class='hs-conid'>Scope</span><span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ren</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-conid'>ModuleName</span><span class='hs-layout'>,</span> <span class='hs-conid'>Ren</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-conid'>QName</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-303"></a><span class='hs-definition'>copyScope</span> <span class='hs-varid'>new</span> <span class='hs-varid'>s</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>runStateT</span> <span class='hs-layout'>(</span><span class='hs-varid'>copy</span> <span class='hs-varid'>new</span> <span class='hs-varid'>s</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>empty</span><span class='hs-layout'>,</span> <span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>empty</span><span class='hs-layout'>)</span>
<a name="line-304"></a> <span class='hs-keyword'>where</span>
<a name="line-305"></a> <span class='hs-varid'>copy</span> <span class='hs-varid'>new</span> <span class='hs-varid'>s</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-306"></a> <span class='hs-varid'>s0</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>lift</span> <span class='hs-varop'>$</span> <span class='hs-varid'>getNamedScope</span> <span class='hs-varid'>new</span>
<a name="line-307"></a> <span class='hs-varid'>s'</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>mapScopeM</span> <span class='hs-varid'>copyD</span> <span class='hs-varid'>copyM</span> <span class='hs-varid'>s</span>
<a name="line-308"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-varid'>s'</span> <span class='hs-layout'>{</span> <span class='hs-varid'>scopeName</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>scopeName</span> <span class='hs-varid'>s0</span>
<a name="line-309"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>scopeParents</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>scopeParents</span> <span class='hs-varid'>s0</span>
<a name="line-310"></a> <span class='hs-layout'>}</span>
<a name="line-311"></a>
<a name="line-312"></a> <span class='hs-varid'>new'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>killRange</span> <span class='hs-varid'>new</span>
<a name="line-313"></a> <span class='hs-varid'>old</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>scopeName</span> <span class='hs-varid'>s</span>
<a name="line-314"></a>
<a name="line-315"></a> <span class='hs-varid'>copyM</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>NameSpaceId</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ModulesInScope</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>WSM</span> <span class='hs-conid'>ModulesInScope</span>
<a name="line-316"></a> <span class='hs-varid'>copyM</span> <span class='hs-conid'>ImportedNS</span> <span class='hs-varid'>ms</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-varid'>ms</span>
<a name="line-317"></a> <span class='hs-varid'>copyM</span> <span class='hs-conid'>PrivateNS</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>empty</span>
<a name="line-318"></a> <span class='hs-varid'>copyM</span> <span class='hs-conid'>PublicNS</span> <span class='hs-varid'>ms</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>traverse</span> <span class='hs-layout'>(</span><span class='hs-varid'>mapM</span> <span class='hs-varop'>$</span> <span class='hs-varid'>onMod</span> <span class='hs-varid'>renMod</span><span class='hs-layout'>)</span> <span class='hs-varid'>ms</span>
<a name="line-319"></a> <span class='hs-varid'>copyM</span> <span class='hs-conid'>OnlyQualifiedNS</span> <span class='hs-varid'>ms</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>traverse</span> <span class='hs-layout'>(</span><span class='hs-varid'>mapM</span> <span class='hs-varop'>$</span> <span class='hs-varid'>onMod</span> <span class='hs-varid'>renMod</span><span class='hs-layout'>)</span> <span class='hs-varid'>ms</span>
<a name="line-320"></a>
<a name="line-321"></a> <span class='hs-varid'>copyD</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>NameSpaceId</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>NamesInScope</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>WSM</span> <span class='hs-conid'>NamesInScope</span>
<a name="line-322"></a> <span class='hs-varid'>copyD</span> <span class='hs-conid'>ImportedNS</span> <span class='hs-varid'>ds</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-varid'>ds</span>
<a name="line-323"></a> <span class='hs-varid'>copyD</span> <span class='hs-conid'>PrivateNS</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>empty</span>
<a name="line-324"></a> <span class='hs-varid'>copyD</span> <span class='hs-conid'>PublicNS</span> <span class='hs-varid'>ds</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>traverse</span> <span class='hs-layout'>(</span><span class='hs-varid'>mapM</span> <span class='hs-varop'>$</span> <span class='hs-varid'>onName</span> <span class='hs-varid'>renName</span><span class='hs-layout'>)</span> <span class='hs-varid'>ds</span>
<a name="line-325"></a> <span class='hs-varid'>copyD</span> <span class='hs-conid'>OnlyQualifiedNS</span> <span class='hs-varid'>ds</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>traverse</span> <span class='hs-layout'>(</span><span class='hs-varid'>mapM</span> <span class='hs-varop'>$</span> <span class='hs-varid'>onName</span> <span class='hs-varid'>renName</span><span class='hs-layout'>)</span> <span class='hs-varid'>ds</span>
<a name="line-326"></a>
<a name="line-327"></a> <span class='hs-varid'>onMod</span> <span class='hs-varid'>f</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-328"></a> <span class='hs-varid'>x</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>f</span> <span class='hs-varop'>$</span> <span class='hs-varid'>amodName</span> <span class='hs-varid'>m</span>
<a name="line-329"></a> <span class='hs-varid'>return</span> <span class='hs-varid'>m</span> <span class='hs-layout'>{</span> <span class='hs-varid'>amodName</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>x</span> <span class='hs-layout'>}</span>
<a name="line-330"></a>
<a name="line-331"></a> <span class='hs-varid'>onName</span> <span class='hs-varid'>f</span> <span class='hs-varid'>d</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-332"></a> <span class='hs-varid'>x</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>f</span> <span class='hs-varop'>$</span> <span class='hs-varid'>anameName</span> <span class='hs-varid'>d</span>
<a name="line-333"></a> <span class='hs-varid'>return</span> <span class='hs-varid'>d</span> <span class='hs-layout'>{</span> <span class='hs-varid'>anameName</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>x</span> <span class='hs-layout'>}</span>
<a name="line-334"></a>
<a name="line-335"></a> <span class='hs-varid'>addName</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>addNames</span> <span class='hs-layout'>(</span><span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>singleton</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span>
<a name="line-336"></a> <span class='hs-varid'>addMod</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>addMods</span> <span class='hs-layout'>(</span><span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>singleton</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span>
<a name="line-337"></a>
<a name="line-338"></a> <span class='hs-varid'>addNames</span> <span class='hs-varid'>rd'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>modify</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-layout'>(</span><span class='hs-varid'>rm</span><span class='hs-layout'>,</span> <span class='hs-varid'>rd</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-varid'>rm</span><span class='hs-layout'>,</span> <span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>union</span> <span class='hs-varid'>rd</span> <span class='hs-varid'>rd'</span><span class='hs-layout'>)</span>
<a name="line-339"></a> <span class='hs-varid'>addMods</span> <span class='hs-varid'>rm'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>modify</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-layout'>(</span><span class='hs-varid'>rm</span><span class='hs-layout'>,</span> <span class='hs-varid'>rd</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>union</span> <span class='hs-varid'>rm</span> <span class='hs-varid'>rm'</span><span class='hs-layout'>,</span> <span class='hs-varid'>rd</span><span class='hs-layout'>)</span>
<a name="line-340"></a>
<a name="line-341"></a> <span class='hs-varid'>findName</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>lookup</span> <span class='hs-varid'>x</span> <span class='hs-varop'><$></span> <span class='hs-varid'>gets</span> <span class='hs-varid'>snd</span>
<a name="line-342"></a> <span class='hs-varid'>findMod</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>lookup</span> <span class='hs-varid'>x</span> <span class='hs-varop'><$></span> <span class='hs-varid'>gets</span> <span class='hs-varid'>fst</span>
<a name="line-343"></a>
<a name="line-344"></a> <span class='hs-comment'>-- Change a binding M.x -> old.M'.y to M.x -> new.M'.y</span>
<a name="line-345"></a> <span class='hs-varid'>renName</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-conid'>QName</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>WSM</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-conid'>QName</span>
<a name="line-346"></a> <span class='hs-varid'>renName</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-347"></a> <span class='hs-comment'>-- Check if we've seen it already</span>
<a name="line-348"></a> <span class='hs-varid'>my</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>findName</span> <span class='hs-varid'>x</span>
<a name="line-349"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>my</span> <span class='hs-keyword'>of</span>
<a name="line-350"></a> <span class='hs-conid'>Just</span> <span class='hs-varid'>y</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-varid'>y</span>
<a name="line-351"></a> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-352"></a> <span class='hs-comment'>-- First time, generate a fresh name for it</span>
<a name="line-353"></a> <span class='hs-varid'>i</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>lift</span> <span class='hs-varid'>fresh</span>
<a name="line-354"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>y</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>qualifyQ</span> <span class='hs-varid'>new'</span> <span class='hs-varop'>.</span> <span class='hs-varid'>dequalify</span>
<a name="line-355"></a> <span class='hs-varop'>$</span> <span class='hs-varid'>x</span> <span class='hs-layout'>{</span> <span class='hs-varid'>qnameName</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>qnameName</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-layout'>{</span> <span class='hs-varid'>nameId</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>i</span> <span class='hs-layout'>}</span> <span class='hs-layout'>}</span>
<a name="line-356"></a> <span class='hs-varid'>addName</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span>
<a name="line-357"></a> <span class='hs-varid'>return</span> <span class='hs-varid'>y</span>
<a name="line-358"></a> <span class='hs-keyword'>where</span>
<a name="line-359"></a> <span class='hs-varid'>dequalify</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>qnameFromList</span> <span class='hs-varop'>.</span> <span class='hs-varid'>drop</span> <span class='hs-layout'>(</span><span class='hs-varid'>size</span> <span class='hs-varid'>old</span><span class='hs-layout'>)</span> <span class='hs-varop'>.</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>qnameToList</span>
<a name="line-360"></a>
<a name="line-361"></a> <span class='hs-comment'>-- Change a binding M.x -> old.M'.y to M.x -> new.M'.y</span>
<a name="line-362"></a> <span class='hs-varid'>renMod</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-conid'>ModuleName</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>WSM</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-conid'>ModuleName</span>
<a name="line-363"></a> <span class='hs-varid'>renMod</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-364"></a> <span class='hs-comment'>-- Check if we've seen it already</span>
<a name="line-365"></a> <span class='hs-varid'>my</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>findMod</span> <span class='hs-varid'>x</span>
<a name="line-366"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>my</span> <span class='hs-keyword'>of</span>
<a name="line-367"></a> <span class='hs-conid'>Just</span> <span class='hs-varid'>y</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-varid'>y</span>
<a name="line-368"></a> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-369"></a> <span class='hs-comment'>-- Create the name of the new module</span>
<a name="line-370"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>y</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>qualifyM</span> <span class='hs-varid'>new'</span> <span class='hs-varop'>$</span> <span class='hs-varid'>dequalify</span> <span class='hs-varid'>x</span>
<a name="line-371"></a> <span class='hs-varid'>addMod</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span>
<a name="line-372"></a>
<a name="line-373"></a> <span class='hs-comment'>-- We need to copy the contents of included modules recursively</span>
<a name="line-374"></a> <span class='hs-varid'>s0</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>lift</span> <span class='hs-varop'>$</span> <span class='hs-varid'>createModule</span> <span class='hs-conid'>False</span> <span class='hs-varid'>y</span> <span class='hs-varop'>>></span> <span class='hs-varid'>getNamedScope</span> <span class='hs-varid'>x</span>
<a name="line-375"></a> <span class='hs-varid'>s</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>withCurrentModule'</span> <span class='hs-varid'>y</span> <span class='hs-varop'>$</span> <span class='hs-varid'>copy</span> <span class='hs-varid'>y</span> <span class='hs-varid'>s0</span>
<a name="line-376"></a> <span class='hs-varid'>lift</span> <span class='hs-varop'>$</span> <span class='hs-varid'>modifyNamedScope</span> <span class='hs-varid'>y</span> <span class='hs-layout'>(</span><span class='hs-varid'>const</span> <span class='hs-varid'>s</span><span class='hs-layout'>)</span>
<a name="line-377"></a> <span class='hs-varid'>return</span> <span class='hs-varid'>y</span>
<a name="line-378"></a> <span class='hs-keyword'>where</span>
<a name="line-379"></a> <span class='hs-varid'>dequalify</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>mnameFromList</span> <span class='hs-varop'>.</span> <span class='hs-varid'>drop</span> <span class='hs-layout'>(</span><span class='hs-varid'>size</span> <span class='hs-varid'>old</span><span class='hs-layout'>)</span> <span class='hs-varop'>.</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>mnameToList</span>
<a name="line-380"></a>
<a name="line-381"></a><a name="applyImportDirectiveM"></a><span class='hs-comment'>-- | Apply an importdirective and check that all the names mentioned actually</span>
<a name="line-382"></a><span class='hs-comment'>-- exist.</span>
<a name="line-383"></a><span class='hs-definition'>applyImportDirectiveM</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>C</span><span class='hs-varop'>.</span><span class='hs-conid'>QName</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ImportDirective</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Scope</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ScopeM</span> <span class='hs-conid'>Scope</span>
<a name="line-384"></a><span class='hs-definition'>applyImportDirectiveM</span> <span class='hs-varid'>m</span> <span class='hs-varid'>dir</span> <span class='hs-varid'>scope</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-385"></a> <span class='hs-varid'>xs</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>filterM</span> <span class='hs-varid'>doesntExist</span> <span class='hs-varid'>names</span>
<a name="line-386"></a> <span class='hs-varid'>reportSLn</span> <span class='hs-str'>"scope.import.apply"</span> <span class='hs-num'>20</span> <span class='hs-varop'>$</span> <span class='hs-str'>"non existing names: "</span> <span class='hs-varop'>++</span> <span class='hs-varid'>show</span> <span class='hs-varid'>xs</span>
<a name="line-387"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>xs</span> <span class='hs-keyword'>of</span>
<a name="line-388"></a> <span class='hs-conid'>[]</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>case</span> <span class='hs-varid'>targetNames</span> <span class='hs-varop'>\\</span> <span class='hs-varid'>nub</span> <span class='hs-varid'>targetNames</span> <span class='hs-keyword'>of</span>
<a name="line-389"></a> <span class='hs-conid'>[]</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-varid'>applyImportDirective</span> <span class='hs-varid'>dir</span> <span class='hs-varid'>scope</span>
<a name="line-390"></a> <span class='hs-varid'>dup</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>typeError</span> <span class='hs-varop'>$</span> <span class='hs-conid'>DuplicateImports</span> <span class='hs-varid'>m</span> <span class='hs-varid'>dup</span>
<a name="line-391"></a> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>typeError</span> <span class='hs-varop'>$</span> <span class='hs-conid'>ModuleDoesntExport</span> <span class='hs-varid'>m</span> <span class='hs-varid'>xs</span>
<a name="line-392"></a> <span class='hs-keyword'>where</span>
<a name="line-393"></a> <span class='hs-varid'>names</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>ImportedName</span><span class='hs-keyglyph'>]</span>
<a name="line-394"></a> <span class='hs-varid'>names</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>map</span> <span class='hs-varid'>renFrom</span> <span class='hs-layout'>(</span><span class='hs-varid'>renaming</span> <span class='hs-varid'>dir</span><span class='hs-layout'>)</span> <span class='hs-varop'>++</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>usingOrHiding</span> <span class='hs-varid'>dir</span> <span class='hs-keyword'>of</span>
<a name="line-395"></a> <span class='hs-conid'>Using</span> <span class='hs-varid'>xs</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>xs</span>
<a name="line-396"></a> <span class='hs-conid'>Hiding</span> <span class='hs-varid'>xs</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>xs</span>
<a name="line-397"></a>
<a name="line-398"></a> <span class='hs-varid'>targetNames</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>ImportedName</span><span class='hs-keyglyph'>]</span>
<a name="line-399"></a> <span class='hs-varid'>targetNames</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>map</span> <span class='hs-varid'>renName</span> <span class='hs-layout'>(</span><span class='hs-varid'>renaming</span> <span class='hs-varid'>dir</span><span class='hs-layout'>)</span> <span class='hs-varop'>++</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>usingOrHiding</span> <span class='hs-varid'>dir</span> <span class='hs-keyword'>of</span>
<a name="line-400"></a> <span class='hs-conid'>Using</span> <span class='hs-varid'>xs</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>xs</span>
<a name="line-401"></a> <span class='hs-conid'>Hiding</span><span class='hs-layout'>{</span><span class='hs-layout'>}</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>[]</span>
<a name="line-402"></a> <span class='hs-keyword'>where</span>
<a name="line-403"></a> <span class='hs-varid'>renName</span> <span class='hs-varid'>r</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>renFrom</span> <span class='hs-varid'>r</span><span class='hs-layout'>)</span> <span class='hs-layout'>{</span> <span class='hs-varid'>importedName</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>renTo</span> <span class='hs-varid'>r</span> <span class='hs-layout'>}</span>
<a name="line-404"></a>
<a name="line-405"></a> <span class='hs-varid'>doesntExist</span> <span class='hs-layout'>(</span><span class='hs-conid'>ImportedName</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-406"></a> <span class='hs-keyword'>case</span> <span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>lookup</span> <span class='hs-varid'>x</span> <span class='hs-layout'>(</span><span class='hs-varid'>allNamesInScope</span> <span class='hs-varid'>scope</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ThingsInScope</span> <span class='hs-conid'>AbstractName</span><span class='hs-layout'>)</span> <span class='hs-keyword'>of</span>
<a name="line-407"></a> <span class='hs-conid'>Just</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-conid'>False</span>
<a name="line-408"></a> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-conid'>True</span>
<a name="line-409"></a> <span class='hs-varid'>doesntExist</span> <span class='hs-layout'>(</span><span class='hs-conid'>ImportedModule</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-410"></a> <span class='hs-keyword'>case</span> <span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>lookup</span> <span class='hs-varid'>x</span> <span class='hs-layout'>(</span><span class='hs-varid'>allNamesInScope</span> <span class='hs-varid'>scope</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ThingsInScope</span> <span class='hs-conid'>AbstractModule</span><span class='hs-layout'>)</span> <span class='hs-keyword'>of</span>
<a name="line-411"></a> <span class='hs-conid'>Just</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-conid'>False</span>
<a name="line-412"></a> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-conid'>True</span>
<a name="line-413"></a>
<a name="line-414"></a><a name="openModule_"></a><span class='hs-comment'>-- | Open a module.</span>
<a name="line-415"></a><span class='hs-definition'>openModule_</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>C</span><span class='hs-varop'>.</span><span class='hs-conid'>QName</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ImportDirective</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ScopeM</span> <span class='hs-conid'>()</span>
<a name="line-416"></a><span class='hs-definition'>openModule_</span> <span class='hs-varid'>cm</span> <span class='hs-varid'>dir</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-417"></a> <span class='hs-varid'>current</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getCurrentModule</span>
<a name="line-418"></a> <span class='hs-varid'>m</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>amodName</span> <span class='hs-varop'><$></span> <span class='hs-varid'>resolveModule</span> <span class='hs-varid'>cm</span>
<a name="line-419"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>ns</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>namespace</span> <span class='hs-varid'>current</span> <span class='hs-varid'>m</span>
<a name="line-420"></a> <span class='hs-varid'>s</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>setScopeAccess</span> <span class='hs-varid'>ns</span> <span class='hs-varop'><$></span>
<a name="line-421"></a> <span class='hs-layout'>(</span><span class='hs-varid'>applyImportDirectiveM</span> <span class='hs-varid'>cm</span> <span class='hs-varid'>dir</span> <span class='hs-varop'>.</span> <span class='hs-varid'>removeOnlyQualified</span> <span class='hs-varop'>.</span> <span class='hs-varid'>restrictPrivate</span> <span class='hs-varop'>=<<</span> <span class='hs-varid'>getNamedScope</span> <span class='hs-varid'>m</span><span class='hs-layout'>)</span>
<a name="line-422"></a> <span class='hs-varid'>checkForClashes</span> <span class='hs-layout'>(</span><span class='hs-varid'>scopeNameSpace</span> <span class='hs-varid'>ns</span> <span class='hs-varid'>s</span><span class='hs-layout'>)</span>
<a name="line-423"></a> <span class='hs-varid'>modifyCurrentScope</span> <span class='hs-layout'>(</span><span class='hs-varop'>`mergeScope`</span> <span class='hs-varid'>s</span><span class='hs-layout'>)</span>
<a name="line-424"></a> <span class='hs-keyword'>where</span>
<a name="line-425"></a> <span class='hs-varid'>namespace</span> <span class='hs-varid'>m0</span> <span class='hs-varid'>m1</span>
<a name="line-426"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>not</span> <span class='hs-layout'>(</span><span class='hs-varid'>publicOpen</span> <span class='hs-varid'>dir</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>PrivateNS</span>
<a name="line-427"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>m1</span> <span class='hs-varop'>`isSubModuleOf`</span> <span class='hs-varid'>m0</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>PublicNS</span>
<a name="line-428"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>ImportedNS</span>
<a name="line-429"></a>
<a name="line-430"></a> <span class='hs-comment'>-- Only checks for clashes that would lead to the same</span>
<a name="line-431"></a> <span class='hs-comment'>-- name being exported twice from the module.</span>
<a name="line-432"></a> <span class='hs-varid'>checkForClashes</span> <span class='hs-varid'>new</span>
<a name="line-433"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>not</span> <span class='hs-layout'>(</span><span class='hs-varid'>publicOpen</span> <span class='hs-varid'>dir</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-434"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-435"></a>
<a name="line-436"></a> <span class='hs-varid'>old</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>allThingsInScope</span> <span class='hs-varop'>.</span> <span class='hs-varid'>restrictPrivate</span> <span class='hs-varop'><$></span> <span class='hs-layout'>(</span><span class='hs-varid'>getNamedScope</span> <span class='hs-varop'>=<<</span> <span class='hs-varid'>getCurrentModule</span><span class='hs-layout'>)</span>
<a name="line-437"></a>
<a name="line-438"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>defClashes</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>toList</span> <span class='hs-varop'>$</span> <span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>intersectionWith</span> <span class='hs-conid'>(,)</span> <span class='hs-layout'>(</span><span class='hs-varid'>nsNames</span> <span class='hs-varid'>new</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>nsNames</span> <span class='hs-varid'>old</span><span class='hs-layout'>)</span>
<a name="line-439"></a> <span class='hs-varid'>modClashes</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>toList</span> <span class='hs-varop'>$</span> <span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>intersectionWith</span> <span class='hs-conid'>(,)</span> <span class='hs-layout'>(</span><span class='hs-varid'>nsModules</span> <span class='hs-varid'>new</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>nsModules</span> <span class='hs-varid'>old</span><span class='hs-layout'>)</span>
<a name="line-440"></a>
<a name="line-441"></a> <span class='hs-varid'>realClash</span> <span class='hs-layout'>(</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'>x</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>,</span><span class='hs-keyglyph'>[</span><span class='hs-varid'>y</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>x</span> <span class='hs-varop'>/=</span> <span class='hs-varid'>y</span>
<a name="line-442"></a> <span class='hs-varid'>realClash</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>True</span>
<a name="line-443"></a>
<a name="line-444"></a> <span class='hs-varid'>defClash</span> <span class='hs-layout'>(</span><span class='hs-keyword'>_</span><span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-varid'>qs0</span><span class='hs-layout'>,</span> <span class='hs-varid'>qs1</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-445"></a> <span class='hs-varid'>any</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-varop'>/=</span> <span class='hs-conid'>ConName</span><span class='hs-layout'>)</span> <span class='hs-varop'>.</span> <span class='hs-varid'>anameKind</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>qs0</span> <span class='hs-varop'>++</span> <span class='hs-varid'>qs1</span><span class='hs-layout'>)</span>
<a name="line-446"></a>
<a name="line-447"></a> <span class='hs-layout'>(</span><span class='hs-varid'>f</span> <span class='hs-varop'>&</span> <span class='hs-varid'>g</span><span class='hs-layout'>)</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>f</span> <span class='hs-varid'>x</span> <span class='hs-varop'>&&</span> <span class='hs-varid'>g</span> <span class='hs-varid'>x</span>
<a name="line-448"></a>
<a name="line-449"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>filter</span> <span class='hs-layout'>(</span><span class='hs-varid'>realClash</span> <span class='hs-varop'>&</span> <span class='hs-varid'>defClash</span><span class='hs-layout'>)</span> <span class='hs-varid'>defClashes</span> <span class='hs-keyword'>of</span>
<a name="line-450"></a> <span class='hs-layout'>(</span><span class='hs-varid'>x</span><span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-keyword'>_</span><span class='hs-layout'>,</span> <span class='hs-varid'>q</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-keyword'>_</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>typeError</span> <span class='hs-varop'>$</span> <span class='hs-conid'>ClashingDefinition</span> <span class='hs-layout'>(</span><span class='hs-conid'>C</span><span class='hs-varop'>.</span><span class='hs-conid'>QName</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>anameName</span> <span class='hs-varid'>q</span><span class='hs-layout'>)</span>
<a name="line-451"></a> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-conid'>()</span>
<a name="line-452"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>filter</span> <span class='hs-varid'>realClash</span> <span class='hs-varid'>modClashes</span> <span class='hs-keyword'>of</span>
<a name="line-453"></a> <span class='hs-layout'>(</span><span class='hs-keyword'>_</span><span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-varid'>m0</span><span class='hs-conop'>:</span><span class='hs-keyword'>_</span><span class='hs-layout'>,</span> <span class='hs-varid'>m1</span><span class='hs-conop'>:</span><span class='hs-keyword'>_</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-conop'>:</span><span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>typeError</span> <span class='hs-varop'>$</span> <span class='hs-conid'>ClashingModule</span> <span class='hs-layout'>(</span><span class='hs-varid'>amodName</span> <span class='hs-varid'>m0</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>amodName</span> <span class='hs-varid'>m1</span><span class='hs-layout'>)</span>
<a name="line-454"></a> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-conid'>()</span>
</pre></body>
</html>
