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<title>src/ForSyDe/Process/ProcVal.hs</title>
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<pre><a name="line-1"></a><span class='hs-comment'>-----------------------------------------------------------------------------</span>
<a name="line-2"></a><span class='hs-comment'>-- |</span>
<a name="line-3"></a><span class='hs-comment'>-- Module : ForSyDe.Process.ProcVal</span>
<a name="line-4"></a><span class='hs-comment'>-- Copyright : (c) SAM Group, KTH/ICT/ECS 2007-2008</span>
<a name="line-5"></a><span class='hs-comment'>-- License : BSD-style (see the file LICENSE)</span>
<a name="line-6"></a><span class='hs-comment'>-- </span>
<a name="line-7"></a><span class='hs-comment'>-- Maintainer : forsyde-dev@ict.kth.se</span>
<a name="line-8"></a><span class='hs-comment'>-- Stability : experimental</span>
<a name="line-9"></a><span class='hs-comment'>-- Portability : non-portable (Template Haskell)</span>
<a name="line-10"></a><span class='hs-comment'>--</span>
<a name="line-11"></a><span class='hs-comment'>-- This module provides a type ('ProcVal') to store the value arguments passed</span>
<a name="line-12"></a><span class='hs-comment'>-- to process constructors.</span>
<a name="line-13"></a><span class='hs-comment'>--</span>
<a name="line-14"></a><span class='hs-comment'>----------------------------------------------------------------------------- </span>
<a name="line-15"></a><span class='hs-keyword'>module</span> <span class='hs-conid'>ForSyDe</span><span class='hs-varop'>.</span><span class='hs-conid'>Process</span><span class='hs-varop'>.</span><span class='hs-conid'>ProcVal</span> <span class='hs-keyword'>where</span>
<a name="line-16"></a>
<a name="line-17"></a>
<a name="line-18"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>ForSyDe</span><span class='hs-varop'>.</span><span class='hs-conid'>Process</span><span class='hs-varop'>.</span><span class='hs-conid'>ProcType</span>
<a name="line-19"></a>
<a name="line-20"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Typeable</span> <span class='hs-layout'>(</span><span class='hs-conid'>Typeable</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-conid'>TypeRep</span><span class='hs-layout'>)</span>
<a name="line-21"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Dynamic</span> <span class='hs-layout'>(</span><span class='hs-varid'>toDyn</span><span class='hs-layout'>,</span> <span class='hs-conid'>Dynamic</span><span class='hs-layout'>)</span>
<a name="line-22"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Set</span>
<a name="line-23"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Language</span><span class='hs-varop'>.</span><span class='hs-conid'>Haskell</span><span class='hs-varop'>.</span><span class='hs-conid'>TH</span> <span class='hs-layout'>(</span><span class='hs-conid'>Exp</span><span class='hs-layout'>,</span> <span class='hs-varid'>runQ</span><span class='hs-layout'>)</span>
<a name="line-24"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Language</span><span class='hs-varop'>.</span><span class='hs-conid'>Haskell</span><span class='hs-varop'>.</span><span class='hs-conid'>TH</span><span class='hs-varop'>.</span><span class='hs-conid'>Syntax</span> <span class='hs-layout'>(</span><span class='hs-conid'>Lift</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-25"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>System</span><span class='hs-varop'>.</span><span class='hs-conid'>IO</span><span class='hs-varop'>.</span><span class='hs-conid'>Unsafe</span> <span class='hs-layout'>(</span><span class='hs-varid'>unsafePerformIO</span><span class='hs-layout'>)</span>
<a name="line-26"></a>
<a name="line-27"></a>
<a name="line-28"></a><a name="ProcVal"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>ProcVal</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>ProcVal</span>
<a name="line-29"></a> <span class='hs-layout'>{</span><span class='hs-varid'>dyn</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Dynamic</span><span class='hs-layout'>,</span> <span class='hs-comment'>-- Dynamic value </span>
<a name="line-30"></a> <span class='hs-varid'>valAST</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ProcValAST</span><span class='hs-layout'>}</span> <span class='hs-comment'>-- its AST</span>
<a name="line-31"></a>
<a name="line-32"></a><a name="ProcValAST"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>ProcValAST</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>ProcValAST</span>
<a name="line-33"></a> <span class='hs-layout'>{</span><span class='hs-varid'>expVal</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Exp</span><span class='hs-layout'>,</span> <span class='hs-comment'>-- Its AST representation</span>
<a name="line-34"></a> <span class='hs-varid'>expTyp</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>TypeRep</span><span class='hs-layout'>,</span> <span class='hs-comment'>-- Type of the expression </span>
<a name="line-35"></a> <span class='hs-varid'>expEnums</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Set</span> <span class='hs-conid'>EnumAlgTy</span><span class='hs-layout'>}</span> <span class='hs-comment'>-- Enumerated types associated</span>
<a name="line-36"></a> <span class='hs-comment'>-- with the expression</span>
<a name="line-37"></a>
<a name="line-38"></a><a name="mkProcVal"></a><span class='hs-comment'>-- | 'ProcVal' constructor</span>
<a name="line-39"></a><span class='hs-definition'>mkProcVal</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Lift</span> <span class='hs-varid'>a</span><span class='hs-layout'>,</span> <span class='hs-conid'>ProcType</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=></span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ProcVal</span>
<a name="line-40"></a><span class='hs-comment'>-- FIXME: would unsafePerformIO cause any harm to get the exp out of the</span>
<a name="line-41"></a><span class='hs-comment'>-- Q monad in this context?</span>
<a name="line-42"></a><span class='hs-definition'>mkProcVal</span> <span class='hs-varid'>val</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>ProcVal</span> <span class='hs-layout'>(</span><span class='hs-varid'>toDyn</span> <span class='hs-varid'>val</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>mkProcValAST</span> <span class='hs-varid'>val</span><span class='hs-layout'>)</span>
<a name="line-43"></a>
<a name="line-44"></a><a name="mkProcValAST"></a><span class='hs-definition'>mkProcValAST</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Lift</span> <span class='hs-varid'>a</span><span class='hs-layout'>,</span> <span class='hs-conid'>ProcType</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=></span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ProcValAST</span>
<a name="line-45"></a><span class='hs-comment'>-- FIMXE: the unsafePerformIO won't be needed once the Data a => Lift a</span>
<a name="line-46"></a><span class='hs-comment'>-- instance is created</span>
<a name="line-47"></a><span class='hs-definition'>mkProcValAST</span> <span class='hs-varid'>val</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>ProcValAST</span> <span class='hs-layout'>(</span><span class='hs-varid'>unsafePerformIO</span><span class='hs-varop'>.</span><span class='hs-varid'>runQ</span><span class='hs-varop'>.</span><span class='hs-varid'>lift</span> <span class='hs-varop'>$</span> <span class='hs-varid'>val</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>typeOf</span> <span class='hs-varid'>val</span><span class='hs-layout'>)</span>
<a name="line-48"></a> <span class='hs-layout'>(</span><span class='hs-varid'>getEnums</span> <span class='hs-varid'>val</span><span class='hs-layout'>)</span>
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