| 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 | // FixInit.h -- |
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| 8 | // |
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| 9 | // Author : Rob Schluntz |
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| 10 | // Created On : Wed Jan 13 16:29:30 2016 |
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| 11 | // Last Modified By : Rob Schluntz |
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| 12 | // Last Modified On : Wed Jan 13 16:45:37 2016 |
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| 13 | // Update Count : 17 |
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| 14 | // |
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| 15 | |
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| 16 | #include <stack> |
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| 17 | #include <list> |
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| 18 | #include "RemoveInit.h" |
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| 19 | #include "SynTree/Declaration.h" |
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| 20 | #include "SynTree/Type.h" |
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| 21 | #include "SynTree/Expression.h" |
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| 22 | #include "SynTree/Statement.h" |
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| 23 | #include "SynTree/Initializer.h" |
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| 24 | #include "SynTree/Mutator.h" |
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| 25 | #include "GenPoly/PolyMutator.h" |
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| 26 | |
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| 27 | namespace InitTweak { |
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| 28 | namespace { |
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| 29 | const std::list<Label> noLabels; |
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| 30 | } |
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| 31 | |
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| 32 | class FixInit : public GenPoly::PolyMutator { |
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| 33 | public: |
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| 34 | static void fixInitializers( std::list< Declaration * > &translationUnit ); |
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| 35 | |
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| 36 | virtual ObjectDecl * mutate( ObjectDecl *objDecl ); |
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| 37 | }; |
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| 38 | |
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| 39 | void fix( std::list< Declaration * > & translationUnit ) { |
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| 40 | FixInit::fixInitializers( translationUnit ); |
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| 41 | } |
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| 42 | |
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| 43 | void FixInit::fixInitializers( std::list< Declaration * > & translationUnit ) { |
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| 44 | FixInit fixer; |
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| 45 | mutateAll( translationUnit, fixer ); |
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| 46 | } |
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| 47 | |
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| 48 | // in the case where an object has an initializer and a polymorphic type, insert an assignment immediately after the |
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| 49 | // declaration. This will (seemingly) cause the later phases to do the right thing with the assignment |
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| 50 | ObjectDecl *FixInit::mutate( ObjectDecl *objDecl ) { |
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| 51 | if ( ConstructorInit * ctorInit = dynamic_cast< ConstructorInit * >( objDecl->get_init() ) ) { |
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| 52 | // a decision should have been made by the resolver, so either ctor is NULL or init is NULL |
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| 53 | assert( ! ctorInit->get_ctor() || ! ctorInit->get_init() ); |
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| 54 | if ( Expression * ctor = ctorInit->get_ctor() ) { |
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| 55 | ExprStmt * ctorStmt = new ExprStmt( noLabels, ctor ); |
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| 56 | stmtsToAddAfter.push_back( ctorStmt ); |
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| 57 | objDecl->set_init( NULL ); |
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| 58 | ctorInit->set_ctor( NULL ); |
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| 59 | } else if ( Initializer * init = ctorInit->get_init() ) { |
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| 60 | objDecl->set_init( init ); |
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| 61 | ctorInit->set_init( NULL ); |
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| 62 | } else { |
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| 63 | // one of them should be non-NULL |
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| 64 | assert( ctorInit->get_ctor() || ctorInit->get_init() ); |
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| 65 | } |
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| 66 | delete ctorInit; |
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| 67 | } |
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| 68 | return objDecl; |
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| 69 | } |
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| 70 | } // namespace InitTweak |
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| 71 | |
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| 72 | // Local Variables: // |
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| 73 | // tab-width: 4 // |
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| 74 | // mode: c++ // |
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| 75 | // compile-command: "make install" // |
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| 76 | // End: // |
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