| 1 | //
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| 2 | // Cforall Version 1.0.0 Copyright (C) 2015 University of Waterloo
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| 3 | //
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| 4 | // The contents of this file are covered under the licence agreement in the
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| 5 | // file "LICENCE" distributed with Cforall.
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| 6 | //
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| 7 | // ResolveTypeof.cc --
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| 8 | //
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| 9 | // Author : Richard C. Bilson
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| 10 | // Created On : Sun May 17 12:12:20 2015
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| 11 | // Last Modified By : Peter A. Buhr
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| 12 | // Last Modified On : Tue May 19 16:49:04 2015
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| 13 | // Update Count : 3
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| 14 | //
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| 15 |
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| 16 | #include "ResolveTypeof.h"
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| 17 |
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| 18 | #include <cassert> // for assert
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| 19 |
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| 20 | #include "Resolver.h" // for resolveInVoidContext
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| 21 | #include "SynTree/Expression.h" // for Expression
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| 22 | #include "SynTree/Mutator.h" // for Mutator
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| 23 | #include "SynTree/Type.h" // for TypeofType, Type
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| 24 |
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| 25 | namespace SymTab {
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| 26 | class Indexer;
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| 27 | } // namespace SymTab
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| 28 |
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| 29 | namespace ResolvExpr {
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| 30 | namespace {
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| 31 | #if 0
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| 32 | void
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| 33 | printAlts( const AltList &list, std::ostream &os, int indent = 0 )
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| 34 | {
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| 35 | for ( AltList::const_iterator i = list.begin(); i != list.end(); ++i ) {
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| 36 | i->print( os, indent );
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| 37 | os << std::endl;
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| 38 | }
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| 39 | }
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| 40 | #endif
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| 41 | }
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| 42 |
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| 43 | class ResolveTypeof : public Mutator {
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| 44 | public:
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| 45 | ResolveTypeof( const SymTab::Indexer &indexer ) : indexer( indexer ) {}
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| 46 | Type *mutate( TypeofType *typeofType );
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| 47 |
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| 48 | private:
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| 49 | const SymTab::Indexer &indexer;
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| 50 | };
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| 51 |
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| 52 | Type *resolveTypeof( Type *type, const SymTab::Indexer &indexer ) {
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| 53 | ResolveTypeof mutator( indexer );
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| 54 | return type->acceptMutator( mutator );
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| 55 | }
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| 56 |
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| 57 | Type *ResolveTypeof::mutate( TypeofType *typeofType ) {
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| 58 | #if 0
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| 59 | std::cout << "resolving typeof: ";
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| 60 | typeofType->print( std::cout );
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| 61 | std::cout << std::endl;
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| 62 | #endif
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| 63 | if ( typeofType->get_expr() ) {
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| 64 | Expression *newExpr = resolveInVoidContext( typeofType->get_expr(), indexer );
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| 65 | assert( newExpr->has_result() && ! newExpr->get_result()->isVoid() );
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| 66 | Type *newType = newExpr->get_result();
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| 67 | newExpr->set_result( nullptr );
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| 68 | delete typeofType;
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| 69 | delete newExpr;
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| 70 | return newType;
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| 71 | } // if
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| 72 | return typeofType;
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| 73 | }
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| 74 | } // namespace ResolvExpr
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| 75 |
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| 76 | // Local Variables: //
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| 77 | // tab-width: 4 //
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| 78 | // mode: c++ //
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| 79 | // compile-command: "make install" //
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| 80 | // End: //
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