[0dd3a2f] | 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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[de91427b] | 7 | // Validate.cc -- |
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[0dd3a2f] | 8 | // |
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| 9 | // Author : Richard C. Bilson |
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| 10 | // Created On : Sun May 17 21:50:04 2015 |
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[f066321] | 11 | // Last Modified By : Rob Schluntz |
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[de91427b] | 12 | // Last Modified On : Fri Dec 18 15:34:05 2015 |
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| 13 | // Update Count : 218 |
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[0dd3a2f] | 14 | // |
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| 15 | |
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| 16 | // The "validate" phase of translation is used to take a syntax tree and convert it into a standard form that aims to be |
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| 17 | // as regular in structure as possible. Some assumptions can be made regarding the state of the tree after this pass is |
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| 18 | // complete, including: |
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| 19 | // |
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| 20 | // - No nested structure or union definitions; any in the input are "hoisted" to the level of the containing struct or |
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| 21 | // union. |
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| 22 | // |
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| 23 | // - All enumeration constants have type EnumInstType. |
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| 24 | // |
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| 25 | // - The type "void" never occurs in lists of function parameter or return types; neither do tuple types. A function |
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| 26 | // taking no arguments has no argument types, and tuples are flattened. |
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| 27 | // |
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| 28 | // - No context instances exist; they are all replaced by the set of declarations signified by the context, instantiated |
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| 29 | // by the particular set of type arguments. |
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| 30 | // |
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| 31 | // - Every declaration is assigned a unique id. |
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| 32 | // |
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| 33 | // - No typedef declarations or instances exist; the actual type is substituted for each instance. |
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| 34 | // |
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| 35 | // - Each type, struct, and union definition is followed by an appropriate assignment operator. |
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| 36 | // |
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| 37 | // - Each use of a struct or union is connected to a complete definition of that struct or union, even if that |
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| 38 | // definition occurs later in the input. |
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[51b7345] | 39 | |
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| 40 | #include <list> |
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| 41 | #include <iterator> |
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| 42 | #include "Validate.h" |
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| 43 | #include "SynTree/Visitor.h" |
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| 44 | #include "SynTree/Mutator.h" |
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| 45 | #include "SynTree/Type.h" |
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| 46 | #include "SynTree/Statement.h" |
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| 47 | #include "SynTree/TypeSubstitution.h" |
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[68cd1ce] | 48 | #include "Indexer.h" |
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[51b7345] | 49 | #include "FixFunction.h" |
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[cc79d97] | 50 | // #include "ImplementationType.h" |
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[51b7345] | 51 | #include "utility.h" |
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| 52 | #include "UniqueName.h" |
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| 53 | #include "AddVisit.h" |
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[f6d7e0f] | 54 | #include "MakeLibCfa.h" |
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[cc79d97] | 55 | #include "TypeEquality.h" |
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[1cbca6e] | 56 | #include "ResolvExpr/typeops.h" |
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[51b7345] | 57 | |
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[c8ffe20b] | 58 | #define debugPrint( x ) if ( doDebug ) { std::cout << x; } |
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[51b7345] | 59 | |
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| 60 | namespace SymTab { |
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[a08ba92] | 61 | class HoistStruct : public Visitor { |
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| 62 | public: |
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[82dd287] | 63 | /// Flattens nested struct types |
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[0dd3a2f] | 64 | static void hoistStruct( std::list< Declaration * > &translationUnit ); |
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[de91427b] | 65 | |
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[0dd3a2f] | 66 | std::list< Declaration * > &get_declsToAdd() { return declsToAdd; } |
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[de91427b] | 67 | |
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[0dd3a2f] | 68 | virtual void visit( StructDecl *aggregateDecl ); |
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| 69 | virtual void visit( UnionDecl *aggregateDecl ); |
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[c8ffe20b] | 70 | |
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[0dd3a2f] | 71 | virtual void visit( CompoundStmt *compoundStmt ); |
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| 72 | virtual void visit( IfStmt *ifStmt ); |
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| 73 | virtual void visit( WhileStmt *whileStmt ); |
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| 74 | virtual void visit( ForStmt *forStmt ); |
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| 75 | virtual void visit( SwitchStmt *switchStmt ); |
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| 76 | virtual void visit( ChooseStmt *chooseStmt ); |
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| 77 | virtual void visit( CaseStmt *caseStmt ); |
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| 78 | virtual void visit( CatchStmt *catchStmt ); |
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[a08ba92] | 79 | private: |
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[0dd3a2f] | 80 | HoistStruct(); |
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[c8ffe20b] | 81 | |
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[0dd3a2f] | 82 | template< typename AggDecl > void handleAggregate( AggDecl *aggregateDecl ); |
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[c8ffe20b] | 83 | |
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[0dd3a2f] | 84 | std::list< Declaration * > declsToAdd; |
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| 85 | bool inStruct; |
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[a08ba92] | 86 | }; |
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[c8ffe20b] | 87 | |
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[de91427b] | 88 | /// Replaces enum types by int, and function or array types in function parameter and return lists by appropriate pointers. |
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[a08ba92] | 89 | class Pass1 : public Visitor { |
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[0dd3a2f] | 90 | typedef Visitor Parent; |
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| 91 | virtual void visit( EnumDecl *aggregateDecl ); |
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| 92 | virtual void visit( FunctionType *func ); |
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[a08ba92] | 93 | }; |
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[82dd287] | 94 | |
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| 95 | /// Associates forward declarations of aggregates with their definitions |
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[a08ba92] | 96 | class Pass2 : public Indexer { |
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[0dd3a2f] | 97 | typedef Indexer Parent; |
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[a08ba92] | 98 | public: |
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[0dd3a2f] | 99 | Pass2( bool doDebug, const Indexer *indexer ); |
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[a08ba92] | 100 | private: |
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[0dd3a2f] | 101 | virtual void visit( StructInstType *structInst ); |
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| 102 | virtual void visit( UnionInstType *unionInst ); |
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| 103 | virtual void visit( ContextInstType *contextInst ); |
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| 104 | virtual void visit( StructDecl *structDecl ); |
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| 105 | virtual void visit( UnionDecl *unionDecl ); |
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| 106 | virtual void visit( TypeInstType *typeInst ); |
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| 107 | |
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| 108 | const Indexer *indexer; |
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[de91427b] | 109 | |
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[0dd3a2f] | 110 | typedef std::map< std::string, std::list< StructInstType * > > ForwardStructsType; |
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| 111 | typedef std::map< std::string, std::list< UnionInstType * > > ForwardUnionsType; |
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| 112 | ForwardStructsType forwardStructs; |
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| 113 | ForwardUnionsType forwardUnions; |
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[a08ba92] | 114 | }; |
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[c8ffe20b] | 115 | |
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[82dd287] | 116 | /// Replaces array and function types in forall lists by appropriate pointer type |
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[a08ba92] | 117 | class Pass3 : public Indexer { |
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[0dd3a2f] | 118 | typedef Indexer Parent; |
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[a08ba92] | 119 | public: |
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[0dd3a2f] | 120 | Pass3( const Indexer *indexer ); |
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[a08ba92] | 121 | private: |
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[0dd3a2f] | 122 | virtual void visit( ObjectDecl *object ); |
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| 123 | virtual void visit( FunctionDecl *func ); |
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[c8ffe20b] | 124 | |
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[0dd3a2f] | 125 | const Indexer *indexer; |
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[a08ba92] | 126 | }; |
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[c8ffe20b] | 127 | |
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[f066321] | 128 | class AutogenerateRoutines : public Visitor { |
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[a08ba92] | 129 | public: |
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[82dd287] | 130 | /// Generates assignment operators for aggregate types as required |
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[f066321] | 131 | static void autogenerateRoutines( std::list< Declaration * > &translationUnit ); |
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[c8ffe20b] | 132 | |
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[0dd3a2f] | 133 | std::list< Declaration * > &get_declsToAdd() { return declsToAdd; } |
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[de91427b] | 134 | |
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[28a8cf9] | 135 | virtual void visit( EnumDecl *enumDecl ); |
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[0dd3a2f] | 136 | virtual void visit( StructDecl *structDecl ); |
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| 137 | virtual void visit( UnionDecl *structDecl ); |
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| 138 | virtual void visit( TypeDecl *typeDecl ); |
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| 139 | virtual void visit( ContextDecl *ctxDecl ); |
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| 140 | virtual void visit( FunctionDecl *functionDecl ); |
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[c8ffe20b] | 141 | |
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[0dd3a2f] | 142 | virtual void visit( FunctionType *ftype ); |
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| 143 | virtual void visit( PointerType *ftype ); |
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[de91427b] | 144 | |
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[0dd3a2f] | 145 | virtual void visit( CompoundStmt *compoundStmt ); |
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| 146 | virtual void visit( IfStmt *ifStmt ); |
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| 147 | virtual void visit( WhileStmt *whileStmt ); |
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| 148 | virtual void visit( ForStmt *forStmt ); |
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| 149 | virtual void visit( SwitchStmt *switchStmt ); |
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| 150 | virtual void visit( ChooseStmt *chooseStmt ); |
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| 151 | virtual void visit( CaseStmt *caseStmt ); |
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| 152 | virtual void visit( CatchStmt *catchStmt ); |
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[3c70d38] | 153 | |
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[f066321] | 154 | AutogenerateRoutines() : functionNesting( 0 ) {} |
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[a08ba92] | 155 | private: |
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[0dd3a2f] | 156 | template< typename StmtClass > void visitStatement( StmtClass *stmt ); |
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[de91427b] | 157 | |
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[0dd3a2f] | 158 | std::list< Declaration * > declsToAdd; |
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| 159 | std::set< std::string > structsDone; |
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| 160 | unsigned int functionNesting; // current level of nested functions |
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[a08ba92] | 161 | }; |
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[c8ffe20b] | 162 | |
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[de91427b] | 163 | class ReturnChecker : public Visitor { |
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| 164 | public: |
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| 165 | /// Checks that return statements return nothing if their return type is void |
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| 166 | /// and return something if the return type is non-void. |
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| 167 | static void checkFunctionReturns( std::list< Declaration * > & translationUnit ); |
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| 168 | |
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| 169 | private: |
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| 170 | virtual void visit( FunctionDecl * functionDecl ); |
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| 171 | |
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| 172 | virtual void visit( ReturnStmt * returnStmt ); |
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| 173 | |
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| 174 | std::list< DeclarationWithType * > returnVals; |
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| 175 | }; |
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| 176 | |
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[a08ba92] | 177 | class EliminateTypedef : public Mutator { |
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| 178 | public: |
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[de91427b] | 179 | EliminateTypedef() : scopeLevel( 0 ) {} |
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| 180 | /// Replaces typedefs by forward declarations |
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[0dd3a2f] | 181 | static void eliminateTypedef( std::list< Declaration * > &translationUnit ); |
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[a08ba92] | 182 | private: |
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[0dd3a2f] | 183 | virtual Declaration *mutate( TypedefDecl *typeDecl ); |
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| 184 | virtual TypeDecl *mutate( TypeDecl *typeDecl ); |
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| 185 | virtual DeclarationWithType *mutate( FunctionDecl *funcDecl ); |
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[1db21619] | 186 | virtual DeclarationWithType *mutate( ObjectDecl *objDecl ); |
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[0dd3a2f] | 187 | virtual CompoundStmt *mutate( CompoundStmt *compoundStmt ); |
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| 188 | virtual Type *mutate( TypeInstType *aggregateUseType ); |
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| 189 | virtual Expression *mutate( CastExpr *castExpr ); |
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[cc79d97] | 190 | |
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[85c4ef0] | 191 | virtual Declaration *mutate( StructDecl * structDecl ); |
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| 192 | virtual Declaration *mutate( UnionDecl * unionDecl ); |
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| 193 | virtual Declaration *mutate( EnumDecl * enumDecl ); |
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| 194 | virtual Declaration *mutate( ContextDecl * contextDecl ); |
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| 195 | |
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| 196 | template<typename AggDecl> |
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| 197 | AggDecl *handleAggregate( AggDecl * aggDecl ); |
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| 198 | |
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[cc79d97] | 199 | typedef std::map< std::string, std::pair< TypedefDecl *, int > > TypedefMap; |
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| 200 | TypedefMap typedefNames; |
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| 201 | int scopeLevel; |
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[a08ba92] | 202 | }; |
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[c8ffe20b] | 203 | |
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[a08ba92] | 204 | void validate( std::list< Declaration * > &translationUnit, bool doDebug ) { |
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[0dd3a2f] | 205 | Pass1 pass1; |
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| 206 | Pass2 pass2( doDebug, 0 ); |
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| 207 | Pass3 pass3( 0 ); |
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| 208 | EliminateTypedef::eliminateTypedef( translationUnit ); |
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| 209 | HoistStruct::hoistStruct( translationUnit ); |
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| 210 | acceptAll( translationUnit, pass1 ); |
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| 211 | acceptAll( translationUnit, pass2 ); |
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[de91427b] | 212 | ReturnChecker::checkFunctionReturns( translationUnit ); |
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[f066321] | 213 | AutogenerateRoutines::autogenerateRoutines( translationUnit ); |
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[0dd3a2f] | 214 | acceptAll( translationUnit, pass3 ); |
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[a08ba92] | 215 | } |
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[de91427b] | 216 | |
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[a08ba92] | 217 | void validateType( Type *type, const Indexer *indexer ) { |
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[0dd3a2f] | 218 | Pass1 pass1; |
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| 219 | Pass2 pass2( false, indexer ); |
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| 220 | Pass3 pass3( indexer ); |
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| 221 | type->accept( pass1 ); |
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| 222 | type->accept( pass2 ); |
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| 223 | type->accept( pass3 ); |
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[a08ba92] | 224 | } |
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[c8ffe20b] | 225 | |
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[a08ba92] | 226 | template< typename Visitor > |
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| 227 | void acceptAndAdd( std::list< Declaration * > &translationUnit, Visitor &visitor, bool addBefore ) { |
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[0dd3a2f] | 228 | std::list< Declaration * >::iterator i = translationUnit.begin(); |
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| 229 | while ( i != translationUnit.end() ) { |
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| 230 | (*i)->accept( visitor ); |
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| 231 | std::list< Declaration * >::iterator next = i; |
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| 232 | next++; |
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| 233 | if ( ! visitor.get_declsToAdd().empty() ) { |
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| 234 | translationUnit.splice( addBefore ? i : next, visitor.get_declsToAdd() ); |
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| 235 | } // if |
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| 236 | i = next; |
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| 237 | } // while |
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[a08ba92] | 238 | } |
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[c8ffe20b] | 239 | |
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[a08ba92] | 240 | void HoistStruct::hoistStruct( std::list< Declaration * > &translationUnit ) { |
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[0dd3a2f] | 241 | HoistStruct hoister; |
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| 242 | acceptAndAdd( translationUnit, hoister, true ); |
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[a08ba92] | 243 | } |
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[c8ffe20b] | 244 | |
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[a08ba92] | 245 | HoistStruct::HoistStruct() : inStruct( false ) { |
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| 246 | } |
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[c8ffe20b] | 247 | |
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[a08ba92] | 248 | void filter( std::list< Declaration * > &declList, bool (*pred)( Declaration * ), bool doDelete ) { |
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[0dd3a2f] | 249 | std::list< Declaration * >::iterator i = declList.begin(); |
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| 250 | while ( i != declList.end() ) { |
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| 251 | std::list< Declaration * >::iterator next = i; |
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| 252 | ++next; |
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| 253 | if ( pred( *i ) ) { |
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| 254 | if ( doDelete ) { |
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| 255 | delete *i; |
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| 256 | } // if |
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| 257 | declList.erase( i ); |
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| 258 | } // if |
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| 259 | i = next; |
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| 260 | } // while |
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[a08ba92] | 261 | } |
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[c8ffe20b] | 262 | |
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[a08ba92] | 263 | bool isStructOrUnion( Declaration *decl ) { |
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[0dd3a2f] | 264 | return dynamic_cast< StructDecl * >( decl ) || dynamic_cast< UnionDecl * >( decl ); |
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[a08ba92] | 265 | } |
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[51b7345] | 266 | |
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[a08ba92] | 267 | template< typename AggDecl > |
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| 268 | void HoistStruct::handleAggregate( AggDecl *aggregateDecl ) { |
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[0dd3a2f] | 269 | if ( inStruct ) { |
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| 270 | // Add elements in stack order corresponding to nesting structure. |
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| 271 | declsToAdd.push_front( aggregateDecl ); |
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| 272 | Visitor::visit( aggregateDecl ); |
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| 273 | } else { |
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| 274 | inStruct = true; |
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| 275 | Visitor::visit( aggregateDecl ); |
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| 276 | inStruct = false; |
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| 277 | } // if |
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| 278 | // Always remove the hoisted aggregate from the inner structure. |
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| 279 | filter( aggregateDecl->get_members(), isStructOrUnion, false ); |
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[a08ba92] | 280 | } |
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[c8ffe20b] | 281 | |
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[a08ba92] | 282 | void HoistStruct::visit( StructDecl *aggregateDecl ) { |
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[0dd3a2f] | 283 | handleAggregate( aggregateDecl ); |
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[a08ba92] | 284 | } |
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[c8ffe20b] | 285 | |
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[a08ba92] | 286 | void HoistStruct::visit( UnionDecl *aggregateDecl ) { |
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[0dd3a2f] | 287 | handleAggregate( aggregateDecl ); |
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[a08ba92] | 288 | } |
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[c8ffe20b] | 289 | |
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[a08ba92] | 290 | void HoistStruct::visit( CompoundStmt *compoundStmt ) { |
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[0dd3a2f] | 291 | addVisit( compoundStmt, *this ); |
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[a08ba92] | 292 | } |
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[c8ffe20b] | 293 | |
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[a08ba92] | 294 | void HoistStruct::visit( IfStmt *ifStmt ) { |
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[0dd3a2f] | 295 | addVisit( ifStmt, *this ); |
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[a08ba92] | 296 | } |
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[c8ffe20b] | 297 | |
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[a08ba92] | 298 | void HoistStruct::visit( WhileStmt *whileStmt ) { |
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[0dd3a2f] | 299 | addVisit( whileStmt, *this ); |
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[a08ba92] | 300 | } |
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[c8ffe20b] | 301 | |
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[a08ba92] | 302 | void HoistStruct::visit( ForStmt *forStmt ) { |
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[0dd3a2f] | 303 | addVisit( forStmt, *this ); |
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[a08ba92] | 304 | } |
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[c8ffe20b] | 305 | |
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[a08ba92] | 306 | void HoistStruct::visit( SwitchStmt *switchStmt ) { |
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[0dd3a2f] | 307 | addVisit( switchStmt, *this ); |
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[a08ba92] | 308 | } |
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[c8ffe20b] | 309 | |
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[a08ba92] | 310 | void HoistStruct::visit( ChooseStmt *switchStmt ) { |
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[0dd3a2f] | 311 | addVisit( switchStmt, *this ); |
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[a08ba92] | 312 | } |
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[c8ffe20b] | 313 | |
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[a08ba92] | 314 | void HoistStruct::visit( CaseStmt *caseStmt ) { |
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[0dd3a2f] | 315 | addVisit( caseStmt, *this ); |
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[a08ba92] | 316 | } |
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[c8ffe20b] | 317 | |
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[a08ba92] | 318 | void HoistStruct::visit( CatchStmt *cathStmt ) { |
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[0dd3a2f] | 319 | addVisit( cathStmt, *this ); |
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[a08ba92] | 320 | } |
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[c8ffe20b] | 321 | |
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[a08ba92] | 322 | void Pass1::visit( EnumDecl *enumDecl ) { |
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[0dd3a2f] | 323 | // Set the type of each member of the enumeration to be EnumConstant |
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[de91427b] | 324 | |
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[0dd3a2f] | 325 | for ( std::list< Declaration * >::iterator i = enumDecl->get_members().begin(); i != enumDecl->get_members().end(); ++i ) { |
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[f6d7e0f] | 326 | ObjectDecl * obj = dynamic_cast< ObjectDecl * >( *i ); |
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[0dd3a2f] | 327 | assert( obj ); |
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[f6d7e0f] | 328 | // obj->set_type( new EnumInstType( Type::Qualifiers( true, false, false, false, false, false ), enumDecl->get_name() ) ); |
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| 329 | BasicType * enumType = new BasicType( Type::Qualifiers(), BasicType::SignedInt ); |
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| 330 | obj->set_type( enumType ) ; |
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[0dd3a2f] | 331 | } // for |
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| 332 | Parent::visit( enumDecl ); |
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[a08ba92] | 333 | } |
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[51b7345] | 334 | |
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[a08ba92] | 335 | namespace { |
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[0dd3a2f] | 336 | template< typename DWTIterator > |
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| 337 | void fixFunctionList( DWTIterator begin, DWTIterator end, FunctionType *func ) { |
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| 338 | // the only case in which "void" is valid is where it is the only one in the list; then it should be removed |
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| 339 | // entirely other fix ups are handled by the FixFunction class |
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| 340 | if ( begin == end ) return; |
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| 341 | FixFunction fixer; |
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| 342 | DWTIterator i = begin; |
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| 343 | *i = (*i )->acceptMutator( fixer ); |
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| 344 | if ( fixer.get_isVoid() ) { |
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| 345 | DWTIterator j = i; |
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| 346 | ++i; |
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| 347 | func->get_parameters().erase( j ); |
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[de91427b] | 348 | if ( i != end ) { |
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[0dd3a2f] | 349 | throw SemanticError( "invalid type void in function type ", func ); |
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| 350 | } // if |
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| 351 | } else { |
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| 352 | ++i; |
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| 353 | for ( ; i != end; ++i ) { |
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| 354 | FixFunction fixer; |
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| 355 | *i = (*i )->acceptMutator( fixer ); |
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| 356 | if ( fixer.get_isVoid() ) { |
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| 357 | throw SemanticError( "invalid type void in function type ", func ); |
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| 358 | } // if |
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| 359 | } // for |
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| 360 | } // if |
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| 361 | } |
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[a08ba92] | 362 | } |
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[c8ffe20b] | 363 | |
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[a08ba92] | 364 | void Pass1::visit( FunctionType *func ) { |
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[0dd3a2f] | 365 | // Fix up parameters and return types |
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| 366 | fixFunctionList( func->get_parameters().begin(), func->get_parameters().end(), func ); |
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| 367 | fixFunctionList( func->get_returnVals().begin(), func->get_returnVals().end(), func ); |
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| 368 | Visitor::visit( func ); |
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[a08ba92] | 369 | } |
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[c8ffe20b] | 370 | |
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[a08ba92] | 371 | Pass2::Pass2( bool doDebug, const Indexer *other_indexer ) : Indexer( doDebug ) { |
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[0dd3a2f] | 372 | if ( other_indexer ) { |
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| 373 | indexer = other_indexer; |
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| 374 | } else { |
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| 375 | indexer = this; |
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| 376 | } // if |
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[a08ba92] | 377 | } |
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[c8ffe20b] | 378 | |
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[a08ba92] | 379 | void Pass2::visit( StructInstType *structInst ) { |
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[0dd3a2f] | 380 | Parent::visit( structInst ); |
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| 381 | StructDecl *st = indexer->lookupStruct( structInst->get_name() ); |
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| 382 | // it's not a semantic error if the struct is not found, just an implicit forward declaration |
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| 383 | if ( st ) { |
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| 384 | assert( ! structInst->get_baseStruct() || structInst->get_baseStruct()->get_members().empty() || ! st->get_members().empty() ); |
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| 385 | structInst->set_baseStruct( st ); |
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| 386 | } // if |
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| 387 | if ( ! st || st->get_members().empty() ) { |
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| 388 | // use of forward declaration |
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| 389 | forwardStructs[ structInst->get_name() ].push_back( structInst ); |
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| 390 | } // if |
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[a08ba92] | 391 | } |
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[c8ffe20b] | 392 | |
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[a08ba92] | 393 | void Pass2::visit( UnionInstType *unionInst ) { |
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[0dd3a2f] | 394 | Parent::visit( unionInst ); |
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| 395 | UnionDecl *un = indexer->lookupUnion( unionInst->get_name() ); |
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| 396 | // it's not a semantic error if the union is not found, just an implicit forward declaration |
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| 397 | if ( un ) { |
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| 398 | unionInst->set_baseUnion( un ); |
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| 399 | } // if |
---|
| 400 | if ( ! un || un->get_members().empty() ) { |
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| 401 | // use of forward declaration |
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| 402 | forwardUnions[ unionInst->get_name() ].push_back( unionInst ); |
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| 403 | } // if |
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[a08ba92] | 404 | } |
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[c8ffe20b] | 405 | |
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[a08ba92] | 406 | void Pass2::visit( ContextInstType *contextInst ) { |
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[0dd3a2f] | 407 | Parent::visit( contextInst ); |
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| 408 | ContextDecl *ctx = indexer->lookupContext( contextInst->get_name() ); |
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| 409 | if ( ! ctx ) { |
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| 410 | throw SemanticError( "use of undeclared context " + contextInst->get_name() ); |
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[17cd4eb] | 411 | } // if |
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[0dd3a2f] | 412 | for ( std::list< TypeDecl * >::const_iterator i = ctx->get_parameters().begin(); i != ctx->get_parameters().end(); ++i ) { |
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| 413 | for ( std::list< DeclarationWithType * >::const_iterator assert = (*i )->get_assertions().begin(); assert != (*i )->get_assertions().end(); ++assert ) { |
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| 414 | if ( ContextInstType *otherCtx = dynamic_cast< ContextInstType * >(*assert ) ) { |
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| 415 | cloneAll( otherCtx->get_members(), contextInst->get_members() ); |
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| 416 | } else { |
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| 417 | contextInst->get_members().push_back( (*assert )->clone() ); |
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| 418 | } // if |
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| 419 | } // for |
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| 420 | } // for |
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[51b986f] | 421 | |
---|
| 422 | if ( ctx->get_parameters().size() != contextInst->get_parameters().size() ) { |
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| 423 | throw SemanticError( "incorrect number of context parameters: ", contextInst ); |
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| 424 | } // if |
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| 425 | |
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[0dd3a2f] | 426 | applySubstitution( ctx->get_parameters().begin(), ctx->get_parameters().end(), contextInst->get_parameters().begin(), ctx->get_members().begin(), ctx->get_members().end(), back_inserter( contextInst->get_members() ) ); |
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[a08ba92] | 427 | } |
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[c8ffe20b] | 428 | |
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[a08ba92] | 429 | void Pass2::visit( StructDecl *structDecl ) { |
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[0dd3a2f] | 430 | if ( ! structDecl->get_members().empty() ) { |
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| 431 | ForwardStructsType::iterator fwds = forwardStructs.find( structDecl->get_name() ); |
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| 432 | if ( fwds != forwardStructs.end() ) { |
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| 433 | for ( std::list< StructInstType * >::iterator inst = fwds->second.begin(); inst != fwds->second.end(); ++inst ) { |
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| 434 | (*inst )->set_baseStruct( structDecl ); |
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| 435 | } // for |
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| 436 | forwardStructs.erase( fwds ); |
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| 437 | } // if |
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| 438 | } // if |
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| 439 | Indexer::visit( structDecl ); |
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[a08ba92] | 440 | } |
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[c8ffe20b] | 441 | |
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[a08ba92] | 442 | void Pass2::visit( UnionDecl *unionDecl ) { |
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[0dd3a2f] | 443 | if ( ! unionDecl->get_members().empty() ) { |
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| 444 | ForwardUnionsType::iterator fwds = forwardUnions.find( unionDecl->get_name() ); |
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| 445 | if ( fwds != forwardUnions.end() ) { |
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| 446 | for ( std::list< UnionInstType * >::iterator inst = fwds->second.begin(); inst != fwds->second.end(); ++inst ) { |
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| 447 | (*inst )->set_baseUnion( unionDecl ); |
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| 448 | } // for |
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| 449 | forwardUnions.erase( fwds ); |
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| 450 | } // if |
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| 451 | } // if |
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| 452 | Indexer::visit( unionDecl ); |
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[a08ba92] | 453 | } |
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[c8ffe20b] | 454 | |
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[a08ba92] | 455 | void Pass2::visit( TypeInstType *typeInst ) { |
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[0dd3a2f] | 456 | if ( NamedTypeDecl *namedTypeDecl = lookupType( typeInst->get_name() ) ) { |
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| 457 | if ( TypeDecl *typeDecl = dynamic_cast< TypeDecl * >( namedTypeDecl ) ) { |
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| 458 | typeInst->set_isFtype( typeDecl->get_kind() == TypeDecl::Ftype ); |
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| 459 | } // if |
---|
| 460 | } // if |
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[a08ba92] | 461 | } |
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[c8ffe20b] | 462 | |
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[a08ba92] | 463 | Pass3::Pass3( const Indexer *other_indexer ) : Indexer( false ) { |
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[0dd3a2f] | 464 | if ( other_indexer ) { |
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| 465 | indexer = other_indexer; |
---|
| 466 | } else { |
---|
| 467 | indexer = this; |
---|
| 468 | } // if |
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[a08ba92] | 469 | } |
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[c8ffe20b] | 470 | |
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[82dd287] | 471 | /// Fix up assertions |
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[a08ba92] | 472 | void forallFixer( Type *func ) { |
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[0dd3a2f] | 473 | for ( std::list< TypeDecl * >::iterator type = func->get_forall().begin(); type != func->get_forall().end(); ++type ) { |
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| 474 | std::list< DeclarationWithType * > toBeDone, nextRound; |
---|
| 475 | toBeDone.splice( toBeDone.end(), (*type )->get_assertions() ); |
---|
| 476 | while ( ! toBeDone.empty() ) { |
---|
| 477 | for ( std::list< DeclarationWithType * >::iterator assertion = toBeDone.begin(); assertion != toBeDone.end(); ++assertion ) { |
---|
| 478 | if ( ContextInstType *ctx = dynamic_cast< ContextInstType * >( (*assertion )->get_type() ) ) { |
---|
| 479 | for ( std::list< Declaration * >::const_iterator i = ctx->get_members().begin(); i != ctx->get_members().end(); ++i ) { |
---|
| 480 | DeclarationWithType *dwt = dynamic_cast< DeclarationWithType * >( *i ); |
---|
| 481 | assert( dwt ); |
---|
| 482 | nextRound.push_back( dwt->clone() ); |
---|
| 483 | } |
---|
| 484 | delete ctx; |
---|
| 485 | } else { |
---|
| 486 | FixFunction fixer; |
---|
| 487 | *assertion = (*assertion )->acceptMutator( fixer ); |
---|
| 488 | if ( fixer.get_isVoid() ) { |
---|
| 489 | throw SemanticError( "invalid type void in assertion of function ", func ); |
---|
| 490 | } |
---|
| 491 | (*type )->get_assertions().push_back( *assertion ); |
---|
| 492 | } // if |
---|
| 493 | } // for |
---|
| 494 | toBeDone.clear(); |
---|
| 495 | toBeDone.splice( toBeDone.end(), nextRound ); |
---|
| 496 | } // while |
---|
| 497 | } // for |
---|
[a08ba92] | 498 | } |
---|
[c8ffe20b] | 499 | |
---|
[a08ba92] | 500 | void Pass3::visit( ObjectDecl *object ) { |
---|
[0dd3a2f] | 501 | forallFixer( object->get_type() ); |
---|
| 502 | if ( PointerType *pointer = dynamic_cast< PointerType * >( object->get_type() ) ) { |
---|
| 503 | forallFixer( pointer->get_base() ); |
---|
| 504 | } // if |
---|
| 505 | Parent::visit( object ); |
---|
| 506 | object->fixUniqueId(); |
---|
[a08ba92] | 507 | } |
---|
[c8ffe20b] | 508 | |
---|
[a08ba92] | 509 | void Pass3::visit( FunctionDecl *func ) { |
---|
[0dd3a2f] | 510 | forallFixer( func->get_type() ); |
---|
| 511 | Parent::visit( func ); |
---|
| 512 | func->fixUniqueId(); |
---|
[a08ba92] | 513 | } |
---|
[c8ffe20b] | 514 | |
---|
[a08ba92] | 515 | static const std::list< std::string > noLabels; |
---|
[c8ffe20b] | 516 | |
---|
[f066321] | 517 | void AutogenerateRoutines::autogenerateRoutines( std::list< Declaration * > &translationUnit ) { |
---|
| 518 | AutogenerateRoutines visitor; |
---|
[0dd3a2f] | 519 | acceptAndAdd( translationUnit, visitor, false ); |
---|
[a08ba92] | 520 | } |
---|
[c8ffe20b] | 521 | |
---|
[a08ba92] | 522 | template< typename OutputIterator > |
---|
| 523 | void makeScalarAssignment( ObjectDecl *srcParam, ObjectDecl *dstParam, DeclarationWithType *member, OutputIterator out ) { |
---|
[0dd3a2f] | 524 | ObjectDecl *obj = dynamic_cast<ObjectDecl *>( member ); |
---|
| 525 | // unnamed bit fields are not copied as they cannot be accessed |
---|
| 526 | if ( obj != NULL && obj->get_name() == "" && obj->get_bitfieldWidth() != NULL ) return; |
---|
[c8ffe20b] | 527 | |
---|
[0dd3a2f] | 528 | UntypedExpr *assignExpr = new UntypedExpr( new NameExpr( "?=?" ) ); |
---|
[de91427b] | 529 | |
---|
[0dd3a2f] | 530 | UntypedExpr *derefExpr = new UntypedExpr( new NameExpr( "*?" ) ); |
---|
| 531 | derefExpr->get_args().push_back( new VariableExpr( dstParam ) ); |
---|
[de91427b] | 532 | |
---|
[0dd3a2f] | 533 | // do something special for unnamed members |
---|
| 534 | Expression *dstselect = new AddressExpr( new MemberExpr( member, derefExpr ) ); |
---|
| 535 | assignExpr->get_args().push_back( dstselect ); |
---|
[de91427b] | 536 | |
---|
[0dd3a2f] | 537 | Expression *srcselect = new MemberExpr( member, new VariableExpr( srcParam ) ); |
---|
| 538 | assignExpr->get_args().push_back( srcselect ); |
---|
[de91427b] | 539 | |
---|
[0dd3a2f] | 540 | *out++ = new ExprStmt( noLabels, assignExpr ); |
---|
[a08ba92] | 541 | } |
---|
[c8ffe20b] | 542 | |
---|
[a08ba92] | 543 | template< typename OutputIterator > |
---|
| 544 | void makeArrayAssignment( ObjectDecl *srcParam, ObjectDecl *dstParam, DeclarationWithType *member, ArrayType *array, OutputIterator out ) { |
---|
[0dd3a2f] | 545 | static UniqueName indexName( "_index" ); |
---|
[de91427b] | 546 | |
---|
[0dd3a2f] | 547 | // for a flexible array member nothing is done -- user must define own assignment |
---|
| 548 | if ( ! array->get_dimension() ) return; |
---|
[de91427b] | 549 | |
---|
[68cd1ce] | 550 | ObjectDecl *index = new ObjectDecl( indexName.newName(), DeclarationNode::NoStorageClass, LinkageSpec::C, 0, new BasicType( Type::Qualifiers(), BasicType::SignedInt ), 0 ); |
---|
[0dd3a2f] | 551 | *out++ = new DeclStmt( noLabels, index ); |
---|
[de91427b] | 552 | |
---|
[0dd3a2f] | 553 | UntypedExpr *init = new UntypedExpr( new NameExpr( "?=?" ) ); |
---|
| 554 | init->get_args().push_back( new AddressExpr( new VariableExpr( index ) ) ); |
---|
| 555 | init->get_args().push_back( new NameExpr( "0" ) ); |
---|
| 556 | Statement *initStmt = new ExprStmt( noLabels, init ); |
---|
[145f1fc] | 557 | std::list<Statement *> initList; |
---|
| 558 | initList.push_back( initStmt ); |
---|
[de91427b] | 559 | |
---|
[0dd3a2f] | 560 | UntypedExpr *cond = new UntypedExpr( new NameExpr( "?<?" ) ); |
---|
| 561 | cond->get_args().push_back( new VariableExpr( index ) ); |
---|
| 562 | cond->get_args().push_back( array->get_dimension()->clone() ); |
---|
[de91427b] | 563 | |
---|
[0dd3a2f] | 564 | UntypedExpr *inc = new UntypedExpr( new NameExpr( "++?" ) ); |
---|
| 565 | inc->get_args().push_back( new AddressExpr( new VariableExpr( index ) ) ); |
---|
[de91427b] | 566 | |
---|
[0dd3a2f] | 567 | UntypedExpr *assignExpr = new UntypedExpr( new NameExpr( "?=?" ) ); |
---|
[de91427b] | 568 | |
---|
[0dd3a2f] | 569 | UntypedExpr *derefExpr = new UntypedExpr( new NameExpr( "*?" ) ); |
---|
| 570 | derefExpr->get_args().push_back( new VariableExpr( dstParam ) ); |
---|
[de91427b] | 571 | |
---|
[0dd3a2f] | 572 | Expression *dstselect = new MemberExpr( member, derefExpr ); |
---|
| 573 | UntypedExpr *dstIndex = new UntypedExpr( new NameExpr( "?+?" ) ); |
---|
| 574 | dstIndex->get_args().push_back( dstselect ); |
---|
| 575 | dstIndex->get_args().push_back( new VariableExpr( index ) ); |
---|
| 576 | assignExpr->get_args().push_back( dstIndex ); |
---|
[de91427b] | 577 | |
---|
[0dd3a2f] | 578 | Expression *srcselect = new MemberExpr( member, new VariableExpr( srcParam ) ); |
---|
| 579 | UntypedExpr *srcIndex = new UntypedExpr( new NameExpr( "?[?]" ) ); |
---|
| 580 | srcIndex->get_args().push_back( srcselect ); |
---|
| 581 | srcIndex->get_args().push_back( new VariableExpr( index ) ); |
---|
| 582 | assignExpr->get_args().push_back( srcIndex ); |
---|
[de91427b] | 583 | |
---|
[145f1fc] | 584 | *out++ = new ForStmt( noLabels, initList, cond, inc, new ExprStmt( noLabels, assignExpr ) ); |
---|
[a08ba92] | 585 | } |
---|
[c8ffe20b] | 586 | |
---|
[de91427b] | 587 | //E ?=?(E volatile*, int), |
---|
[f6d7e0f] | 588 | // ?=?(E _Atomic volatile*, int); |
---|
| 589 | void makeEnumAssignment( EnumDecl *enumDecl, EnumInstType *refType, unsigned int functionNesting, std::list< Declaration * > &declsToAdd ) { |
---|
| 590 | FunctionType *assignType = new FunctionType( Type::Qualifiers(), false ); |
---|
[de91427b] | 591 | |
---|
[f6d7e0f] | 592 | ObjectDecl *returnVal = new ObjectDecl( "", DeclarationNode::NoStorageClass, LinkageSpec::Cforall, 0, refType->clone(), 0 ); |
---|
| 593 | assignType->get_returnVals().push_back( returnVal ); |
---|
| 594 | |
---|
| 595 | // need two assignment operators with different types |
---|
| 596 | FunctionType * assignType2 = assignType->clone(); |
---|
| 597 | |
---|
| 598 | // E ?=?(E volatile *, E) |
---|
| 599 | Type *etype = refType->clone(); |
---|
[8686f31] | 600 | // etype->get_qualifiers() += Type::Qualifiers(false, true, false, false, false, false); |
---|
[f6d7e0f] | 601 | |
---|
| 602 | ObjectDecl *dstParam = new ObjectDecl( "_dst", DeclarationNode::NoStorageClass, LinkageSpec::Cforall, 0, new PointerType( Type::Qualifiers(), etype ), 0 ); |
---|
| 603 | assignType->get_parameters().push_back( dstParam ); |
---|
| 604 | |
---|
| 605 | ObjectDecl *srcParam = new ObjectDecl( "_src", DeclarationNode::NoStorageClass, LinkageSpec::Cforall, 0, etype->clone(), 0 ); |
---|
| 606 | assignType->get_parameters().push_back( srcParam ); |
---|
| 607 | |
---|
| 608 | // E ?=?(E volatile *, int) |
---|
| 609 | assignType2->get_parameters().push_back( dstParam->clone() ); |
---|
[de91427b] | 610 | BasicType * paramType = new BasicType(Type::Qualifiers(), BasicType::SignedInt); |
---|
[f6d7e0f] | 611 | ObjectDecl *srcParam2 = new ObjectDecl( "_src", DeclarationNode::NoStorageClass, LinkageSpec::Cforall, 0, paramType, 0 ); |
---|
| 612 | assignType2->get_parameters().push_back( srcParam2 ); |
---|
| 613 | |
---|
| 614 | // Routines at global scope marked "static" to prevent multiple definitions is separate translation units |
---|
| 615 | // because each unit generates copies of the default routines for each aggregate. |
---|
| 616 | |
---|
| 617 | // since there is no definition, these should not be inline |
---|
| 618 | // make these intrinsic so that the code generator does not make use of them |
---|
| 619 | FunctionDecl *assignDecl = new FunctionDecl( "?=?", functionNesting > 0 ? DeclarationNode::NoStorageClass : DeclarationNode::Static, LinkageSpec::Intrinsic, assignType, 0, false, false ); |
---|
| 620 | assignDecl->fixUniqueId(); |
---|
| 621 | FunctionDecl *assignDecl2 = new FunctionDecl( "?=?", functionNesting > 0 ? DeclarationNode::NoStorageClass : DeclarationNode::Static, LinkageSpec::Intrinsic, assignType2, 0, false, false ); |
---|
| 622 | assignDecl2->fixUniqueId(); |
---|
| 623 | |
---|
[cc79d97] | 624 | // these should be built in the same way that the prelude |
---|
| 625 | // functions are, so build a list containing the prototypes |
---|
| 626 | // and allow MakeLibCfa to autogenerate the bodies. |
---|
[f6d7e0f] | 627 | std::list< Declaration * > assigns; |
---|
| 628 | assigns.push_back( assignDecl ); |
---|
| 629 | assigns.push_back( assignDecl2 ); |
---|
| 630 | |
---|
| 631 | LibCfa::makeLibCfa( assigns ); |
---|
| 632 | |
---|
[cc79d97] | 633 | // need to remove the prototypes, since this may be nested in a routine |
---|
[8686f31] | 634 | for (int start = 0, end = assigns.size()/2; start < end; start++) { |
---|
| 635 | delete assigns.front(); |
---|
| 636 | assigns.pop_front(); |
---|
[1db21619] | 637 | } // for |
---|
[8686f31] | 638 | |
---|
[f6d7e0f] | 639 | declsToAdd.insert( declsToAdd.begin(), assigns.begin(), assigns.end() ); |
---|
| 640 | } |
---|
| 641 | |
---|
[32d281d] | 642 | /// Clones a reference type, replacing any parameters it may have with a clone of the provided list |
---|
| 643 | template< typename GenericInstType > |
---|
| 644 | GenericInstType *cloneWithParams( GenericInstType *refType, const std::list< Expression* >& params ) { |
---|
| 645 | GenericInstType *clone = refType->clone(); |
---|
| 646 | clone->get_parameters().clear(); |
---|
| 647 | cloneAll( params, clone->get_parameters() ); |
---|
| 648 | return clone; |
---|
| 649 | } |
---|
[f6d7e0f] | 650 | |
---|
[a08ba92] | 651 | Declaration *makeStructAssignment( StructDecl *aggregateDecl, StructInstType *refType, unsigned int functionNesting ) { |
---|
[0dd3a2f] | 652 | FunctionType *assignType = new FunctionType( Type::Qualifiers(), false ); |
---|
[37a3b8f9] | 653 | |
---|
| 654 | // Make function polymorphic in same parameters as generic struct, if applicable |
---|
| 655 | std::list< TypeDecl* >& genericParams = aggregateDecl->get_parameters(); |
---|
[32d281d] | 656 | std::list< Expression* > structParams; // List of matching parameters to put on types |
---|
[37a3b8f9] | 657 | for ( std::list< TypeDecl* >::const_iterator param = genericParams.begin(); param != genericParams.end(); ++param ) { |
---|
[32d281d] | 658 | TypeDecl *typeParam = (*param)->clone(); |
---|
| 659 | assignType->get_forall().push_back( typeParam ); |
---|
| 660 | structParams.push_back( new TypeExpr( new TypeInstType( Type::Qualifiers(), typeParam->get_name(), typeParam ) ) ); |
---|
[37a3b8f9] | 661 | } |
---|
[de91427b] | 662 | |
---|
[32d281d] | 663 | ObjectDecl *returnVal = new ObjectDecl( "", DeclarationNode::NoStorageClass, LinkageSpec::Cforall, 0, cloneWithParams( refType, structParams ), 0 ); |
---|
[0dd3a2f] | 664 | assignType->get_returnVals().push_back( returnVal ); |
---|
[de91427b] | 665 | |
---|
[32d281d] | 666 | ObjectDecl *dstParam = new ObjectDecl( "_dst", DeclarationNode::NoStorageClass, LinkageSpec::Cforall, 0, new PointerType( Type::Qualifiers(), cloneWithParams( refType, structParams ) ), 0 ); |
---|
[0dd3a2f] | 667 | assignType->get_parameters().push_back( dstParam ); |
---|
[de91427b] | 668 | |
---|
[32d281d] | 669 | ObjectDecl *srcParam = new ObjectDecl( "_src", DeclarationNode::NoStorageClass, LinkageSpec::Cforall, 0, cloneWithParams( refType, structParams ), 0 ); |
---|
[0dd3a2f] | 670 | assignType->get_parameters().push_back( srcParam ); |
---|
| 671 | |
---|
| 672 | // Routines at global scope marked "static" to prevent multiple definitions is separate translation units |
---|
| 673 | // because each unit generates copies of the default routines for each aggregate. |
---|
[de62360d] | 674 | FunctionDecl *assignDecl = new FunctionDecl( "?=?", functionNesting > 0 ? DeclarationNode::NoStorageClass : DeclarationNode::Static, LinkageSpec::AutoGen, assignType, new CompoundStmt( noLabels ), true, false ); |
---|
[0dd3a2f] | 675 | assignDecl->fixUniqueId(); |
---|
[de91427b] | 676 | |
---|
[0dd3a2f] | 677 | for ( std::list< Declaration * >::const_iterator member = aggregateDecl->get_members().begin(); member != aggregateDecl->get_members().end(); ++member ) { |
---|
| 678 | if ( DeclarationWithType *dwt = dynamic_cast< DeclarationWithType * >( *member ) ) { |
---|
[de91427b] | 679 | // query the type qualifiers of this field and skip assigning it if it is marked const. |
---|
[367e082] | 680 | // If it is an array type, we need to strip off the array layers to find its qualifiers. |
---|
| 681 | Type * type = dwt->get_type(); |
---|
| 682 | while ( ArrayType * at = dynamic_cast< ArrayType * >( type ) ) { |
---|
| 683 | type = at->get_base(); |
---|
| 684 | } |
---|
| 685 | |
---|
| 686 | if ( type->get_qualifiers().isConst ) { |
---|
[53a2e97] | 687 | // don't assign const members |
---|
| 688 | continue; |
---|
| 689 | } |
---|
| 690 | |
---|
[0dd3a2f] | 691 | if ( ArrayType *array = dynamic_cast< ArrayType * >( dwt->get_type() ) ) { |
---|
| 692 | makeArrayAssignment( srcParam, dstParam, dwt, array, back_inserter( assignDecl->get_statements()->get_kids() ) ); |
---|
| 693 | } else { |
---|
| 694 | makeScalarAssignment( srcParam, dstParam, dwt, back_inserter( assignDecl->get_statements()->get_kids() ) ); |
---|
| 695 | } // if |
---|
| 696 | } // if |
---|
| 697 | } // for |
---|
| 698 | assignDecl->get_statements()->get_kids().push_back( new ReturnStmt( noLabels, new VariableExpr( srcParam ) ) ); |
---|
[de91427b] | 699 | |
---|
[0dd3a2f] | 700 | return assignDecl; |
---|
[a08ba92] | 701 | } |
---|
[c8ffe20b] | 702 | |
---|
[a08ba92] | 703 | Declaration *makeUnionAssignment( UnionDecl *aggregateDecl, UnionInstType *refType, unsigned int functionNesting ) { |
---|
[0dd3a2f] | 704 | FunctionType *assignType = new FunctionType( Type::Qualifiers(), false ); |
---|
[32d281d] | 705 | |
---|
| 706 | // Make function polymorphic in same parameters as generic union, if applicable |
---|
| 707 | std::list< TypeDecl* >& genericParams = aggregateDecl->get_parameters(); |
---|
| 708 | std::list< Expression* > unionParams; // List of matching parameters to put on types |
---|
| 709 | for ( std::list< TypeDecl* >::const_iterator param = genericParams.begin(); param != genericParams.end(); ++param ) { |
---|
| 710 | TypeDecl *typeParam = (*param)->clone(); |
---|
| 711 | assignType->get_forall().push_back( typeParam ); |
---|
| 712 | unionParams.push_back( new TypeExpr( new TypeInstType( Type::Qualifiers(), typeParam->get_name(), typeParam ) ) ); |
---|
| 713 | } |
---|
[de91427b] | 714 | |
---|
[32d281d] | 715 | ObjectDecl *returnVal = new ObjectDecl( "", DeclarationNode::NoStorageClass, LinkageSpec::Cforall, 0, cloneWithParams( refType, unionParams ), 0 ); |
---|
[0dd3a2f] | 716 | assignType->get_returnVals().push_back( returnVal ); |
---|
[de91427b] | 717 | |
---|
[32d281d] | 718 | ObjectDecl *dstParam = new ObjectDecl( "_dst", DeclarationNode::NoStorageClass, LinkageSpec::Cforall, 0, new PointerType( Type::Qualifiers(), cloneWithParams( refType, unionParams ) ), 0 ); |
---|
[0dd3a2f] | 719 | assignType->get_parameters().push_back( dstParam ); |
---|
[de91427b] | 720 | |
---|
[32d281d] | 721 | ObjectDecl *srcParam = new ObjectDecl( "_src", DeclarationNode::NoStorageClass, LinkageSpec::Cforall, 0, cloneWithParams( refType, unionParams ), 0 ); |
---|
[0dd3a2f] | 722 | assignType->get_parameters().push_back( srcParam ); |
---|
[de91427b] | 723 | |
---|
[0dd3a2f] | 724 | // Routines at global scope marked "static" to prevent multiple definitions is separate translation units |
---|
| 725 | // because each unit generates copies of the default routines for each aggregate. |
---|
[de62360d] | 726 | FunctionDecl *assignDecl = new FunctionDecl( "?=?", functionNesting > 0 ? DeclarationNode::NoStorageClass : DeclarationNode::Static, LinkageSpec::AutoGen, assignType, new CompoundStmt( noLabels ), true, false ); |
---|
[0dd3a2f] | 727 | assignDecl->fixUniqueId(); |
---|
[de91427b] | 728 | |
---|
[0dd3a2f] | 729 | UntypedExpr *copy = new UntypedExpr( new NameExpr( "__builtin_memcpy" ) ); |
---|
| 730 | copy->get_args().push_back( new VariableExpr( dstParam ) ); |
---|
| 731 | copy->get_args().push_back( new AddressExpr( new VariableExpr( srcParam ) ) ); |
---|
[32d281d] | 732 | copy->get_args().push_back( new SizeofExpr( cloneWithParams( refType, unionParams ) ) ); |
---|
[c8ffe20b] | 733 | |
---|
[0dd3a2f] | 734 | assignDecl->get_statements()->get_kids().push_back( new ExprStmt( noLabels, copy ) ); |
---|
| 735 | assignDecl->get_statements()->get_kids().push_back( new ReturnStmt( noLabels, new VariableExpr( srcParam ) ) ); |
---|
[de91427b] | 736 | |
---|
[0dd3a2f] | 737 | return assignDecl; |
---|
[a08ba92] | 738 | } |
---|
[c8ffe20b] | 739 | |
---|
[f066321] | 740 | void AutogenerateRoutines::visit( EnumDecl *enumDecl ) { |
---|
[f6d7e0f] | 741 | if ( ! enumDecl->get_members().empty() ) { |
---|
| 742 | EnumInstType *enumInst = new EnumInstType( Type::Qualifiers(), enumDecl->get_name() ); |
---|
| 743 | // enumInst->set_baseEnum( enumDecl ); |
---|
[de91427b] | 744 | // declsToAdd.push_back( |
---|
[f6d7e0f] | 745 | makeEnumAssignment( enumDecl, enumInst, functionNesting, declsToAdd ); |
---|
| 746 | } |
---|
| 747 | } |
---|
| 748 | |
---|
[f066321] | 749 | void AutogenerateRoutines::visit( StructDecl *structDecl ) { |
---|
[0dd3a2f] | 750 | if ( ! structDecl->get_members().empty() && structsDone.find( structDecl->get_name() ) == structsDone.end() ) { |
---|
[32d281d] | 751 | StructInstType structInst( Type::Qualifiers(), structDecl->get_name() ); |
---|
| 752 | structInst.set_baseStruct( structDecl ); |
---|
| 753 | declsToAdd.push_back( makeStructAssignment( structDecl, &structInst, functionNesting ) ); |
---|
[0dd3a2f] | 754 | structsDone.insert( structDecl->get_name() ); |
---|
| 755 | } // if |
---|
[a08ba92] | 756 | } |
---|
[c8ffe20b] | 757 | |
---|
[f066321] | 758 | void AutogenerateRoutines::visit( UnionDecl *unionDecl ) { |
---|
[0dd3a2f] | 759 | if ( ! unionDecl->get_members().empty() ) { |
---|
[32d281d] | 760 | UnionInstType unionInst( Type::Qualifiers(), unionDecl->get_name() ); |
---|
| 761 | unionInst.set_baseUnion( unionDecl ); |
---|
| 762 | declsToAdd.push_back( makeUnionAssignment( unionDecl, &unionInst, functionNesting ) ); |
---|
[0dd3a2f] | 763 | } // if |
---|
[a08ba92] | 764 | } |
---|
[c8ffe20b] | 765 | |
---|
[f066321] | 766 | void AutogenerateRoutines::visit( TypeDecl *typeDecl ) { |
---|
[0dd3a2f] | 767 | CompoundStmt *stmts = 0; |
---|
| 768 | TypeInstType *typeInst = new TypeInstType( Type::Qualifiers(), typeDecl->get_name(), false ); |
---|
| 769 | typeInst->set_baseType( typeDecl ); |
---|
[68cd1ce] | 770 | ObjectDecl *src = new ObjectDecl( "_src", DeclarationNode::NoStorageClass, LinkageSpec::Cforall, 0, typeInst->clone(), 0 ); |
---|
| 771 | ObjectDecl *dst = new ObjectDecl( "_dst", DeclarationNode::NoStorageClass, LinkageSpec::Cforall, 0, new PointerType( Type::Qualifiers(), typeInst->clone() ), 0 ); |
---|
[0dd3a2f] | 772 | if ( typeDecl->get_base() ) { |
---|
| 773 | stmts = new CompoundStmt( std::list< Label >() ); |
---|
| 774 | UntypedExpr *assign = new UntypedExpr( new NameExpr( "?=?" ) ); |
---|
| 775 | assign->get_args().push_back( new CastExpr( new VariableExpr( dst ), new PointerType( Type::Qualifiers(), typeDecl->get_base()->clone() ) ) ); |
---|
| 776 | assign->get_args().push_back( new CastExpr( new VariableExpr( src ), typeDecl->get_base()->clone() ) ); |
---|
| 777 | stmts->get_kids().push_back( new ReturnStmt( std::list< Label >(), assign ) ); |
---|
| 778 | } // if |
---|
| 779 | FunctionType *type = new FunctionType( Type::Qualifiers(), false ); |
---|
[68cd1ce] | 780 | type->get_returnVals().push_back( new ObjectDecl( "", DeclarationNode::NoStorageClass, LinkageSpec::Cforall, 0, typeInst, 0 ) ); |
---|
[0dd3a2f] | 781 | type->get_parameters().push_back( dst ); |
---|
| 782 | type->get_parameters().push_back( src ); |
---|
[de62360d] | 783 | FunctionDecl *func = new FunctionDecl( "?=?", DeclarationNode::NoStorageClass, LinkageSpec::AutoGen, type, stmts, false, false ); |
---|
[0dd3a2f] | 784 | declsToAdd.push_back( func ); |
---|
[a08ba92] | 785 | } |
---|
[c8ffe20b] | 786 | |
---|
[a08ba92] | 787 | void addDecls( std::list< Declaration * > &declsToAdd, std::list< Statement * > &statements, std::list< Statement * >::iterator i ) { |
---|
[5f2f2d7] | 788 | for ( std::list< Declaration * >::iterator decl = declsToAdd.begin(); decl != declsToAdd.end(); ++decl ) { |
---|
| 789 | statements.insert( i, new DeclStmt( noLabels, *decl ) ); |
---|
| 790 | } // for |
---|
| 791 | declsToAdd.clear(); |
---|
[a08ba92] | 792 | } |
---|
[c8ffe20b] | 793 | |
---|
[f066321] | 794 | void AutogenerateRoutines::visit( FunctionType *) { |
---|
[0dd3a2f] | 795 | // ensure that we don't add assignment ops for types defined as part of the function |
---|
[a08ba92] | 796 | } |
---|
[c8ffe20b] | 797 | |
---|
[f066321] | 798 | void AutogenerateRoutines::visit( PointerType *) { |
---|
[0dd3a2f] | 799 | // ensure that we don't add assignment ops for types defined as part of the pointer |
---|
[a08ba92] | 800 | } |
---|
[c8ffe20b] | 801 | |
---|
[f066321] | 802 | void AutogenerateRoutines::visit( ContextDecl *) { |
---|
[0dd3a2f] | 803 | // ensure that we don't add assignment ops for types defined as part of the context |
---|
[a08ba92] | 804 | } |
---|
[c8ffe20b] | 805 | |
---|
[a08ba92] | 806 | template< typename StmtClass > |
---|
[f066321] | 807 | inline void AutogenerateRoutines::visitStatement( StmtClass *stmt ) { |
---|
[0dd3a2f] | 808 | std::set< std::string > oldStructs = structsDone; |
---|
| 809 | addVisit( stmt, *this ); |
---|
| 810 | structsDone = oldStructs; |
---|
[a08ba92] | 811 | } |
---|
[c8ffe20b] | 812 | |
---|
[f066321] | 813 | void AutogenerateRoutines::visit( FunctionDecl *functionDecl ) { |
---|
[0dd3a2f] | 814 | maybeAccept( functionDecl->get_functionType(), *this ); |
---|
| 815 | acceptAll( functionDecl->get_oldDecls(), *this ); |
---|
| 816 | functionNesting += 1; |
---|
| 817 | maybeAccept( functionDecl->get_statements(), *this ); |
---|
| 818 | functionNesting -= 1; |
---|
[a08ba92] | 819 | } |
---|
[3c70d38] | 820 | |
---|
[f066321] | 821 | void AutogenerateRoutines::visit( CompoundStmt *compoundStmt ) { |
---|
[0dd3a2f] | 822 | visitStatement( compoundStmt ); |
---|
[a08ba92] | 823 | } |
---|
[c8ffe20b] | 824 | |
---|
[f066321] | 825 | void AutogenerateRoutines::visit( IfStmt *ifStmt ) { |
---|
[0dd3a2f] | 826 | visitStatement( ifStmt ); |
---|
[a08ba92] | 827 | } |
---|
[c8ffe20b] | 828 | |
---|
[f066321] | 829 | void AutogenerateRoutines::visit( WhileStmt *whileStmt ) { |
---|
[0dd3a2f] | 830 | visitStatement( whileStmt ); |
---|
[a08ba92] | 831 | } |
---|
[c8ffe20b] | 832 | |
---|
[f066321] | 833 | void AutogenerateRoutines::visit( ForStmt *forStmt ) { |
---|
[0dd3a2f] | 834 | visitStatement( forStmt ); |
---|
[a08ba92] | 835 | } |
---|
[c8ffe20b] | 836 | |
---|
[f066321] | 837 | void AutogenerateRoutines::visit( SwitchStmt *switchStmt ) { |
---|
[0dd3a2f] | 838 | visitStatement( switchStmt ); |
---|
[a08ba92] | 839 | } |
---|
[c8ffe20b] | 840 | |
---|
[f066321] | 841 | void AutogenerateRoutines::visit( ChooseStmt *switchStmt ) { |
---|
[0dd3a2f] | 842 | visitStatement( switchStmt ); |
---|
[a08ba92] | 843 | } |
---|
[c8ffe20b] | 844 | |
---|
[f066321] | 845 | void AutogenerateRoutines::visit( CaseStmt *caseStmt ) { |
---|
[0dd3a2f] | 846 | visitStatement( caseStmt ); |
---|
[a08ba92] | 847 | } |
---|
[c8ffe20b] | 848 | |
---|
[f066321] | 849 | void AutogenerateRoutines::visit( CatchStmt *cathStmt ) { |
---|
[0dd3a2f] | 850 | visitStatement( cathStmt ); |
---|
[a08ba92] | 851 | } |
---|
[c8ffe20b] | 852 | |
---|
[de91427b] | 853 | void ReturnChecker::checkFunctionReturns( std::list< Declaration * > & translationUnit ) { |
---|
| 854 | ReturnChecker checker; |
---|
| 855 | acceptAll( translationUnit, checker ); |
---|
| 856 | } |
---|
| 857 | |
---|
| 858 | void ReturnChecker::visit( FunctionDecl * functionDecl ) { |
---|
| 859 | std::list< DeclarationWithType * > oldReturnVals = returnVals; |
---|
| 860 | returnVals = functionDecl->get_functionType()->get_returnVals(); |
---|
| 861 | Visitor::visit( functionDecl ); |
---|
| 862 | returnVals = oldReturnVals; |
---|
| 863 | } |
---|
| 864 | |
---|
| 865 | void ReturnChecker::visit( ReturnStmt * returnStmt ) { |
---|
| 866 | if ( returnStmt->get_expr() == NULL && returnVals.size() != 0 ) { |
---|
| 867 | throw SemanticError( "Non-void function returns no values: " , returnStmt ); |
---|
| 868 | } else if ( returnStmt->get_expr() != NULL && returnVals.size() == 0 ) { |
---|
| 869 | throw SemanticError( "void function returns values: " , returnStmt ); |
---|
| 870 | } |
---|
| 871 | } |
---|
| 872 | |
---|
| 873 | |
---|
[a08ba92] | 874 | bool isTypedef( Declaration *decl ) { |
---|
[0dd3a2f] | 875 | return dynamic_cast< TypedefDecl * >( decl ); |
---|
[a08ba92] | 876 | } |
---|
[c8ffe20b] | 877 | |
---|
[a08ba92] | 878 | void EliminateTypedef::eliminateTypedef( std::list< Declaration * > &translationUnit ) { |
---|
[0dd3a2f] | 879 | EliminateTypedef eliminator; |
---|
| 880 | mutateAll( translationUnit, eliminator ); |
---|
| 881 | filter( translationUnit, isTypedef, true ); |
---|
[a08ba92] | 882 | } |
---|
[c8ffe20b] | 883 | |
---|
[85c4ef0] | 884 | Type *EliminateTypedef::mutate( TypeInstType * typeInst ) { |
---|
[de91427b] | 885 | // instances of typedef types will come here. If it is an instance |
---|
[cc79d97] | 886 | // of a typdef type, link the instance to its actual type. |
---|
| 887 | TypedefMap::const_iterator def = typedefNames.find( typeInst->get_name() ); |
---|
[0dd3a2f] | 888 | if ( def != typedefNames.end() ) { |
---|
[cc79d97] | 889 | Type *ret = def->second.first->get_base()->clone(); |
---|
[0dd3a2f] | 890 | ret->get_qualifiers() += typeInst->get_qualifiers(); |
---|
[0215a76f] | 891 | // place instance parameters on the typedef'd type |
---|
| 892 | if ( ! typeInst->get_parameters().empty() ) { |
---|
| 893 | ReferenceToType *rtt = dynamic_cast<ReferenceToType*>(ret); |
---|
| 894 | if ( ! rtt ) { |
---|
| 895 | throw SemanticError("cannot apply type parameters to base type of " + typeInst->get_name()); |
---|
| 896 | } |
---|
| 897 | rtt->get_parameters().clear(); |
---|
| 898 | cloneAll(typeInst->get_parameters(), rtt->get_parameters()); |
---|
[1db21619] | 899 | } // if |
---|
[0dd3a2f] | 900 | delete typeInst; |
---|
| 901 | return ret; |
---|
| 902 | } // if |
---|
| 903 | return typeInst; |
---|
[a08ba92] | 904 | } |
---|
[c8ffe20b] | 905 | |
---|
[85c4ef0] | 906 | Declaration *EliminateTypedef::mutate( TypedefDecl * tyDecl ) { |
---|
[0dd3a2f] | 907 | Declaration *ret = Mutator::mutate( tyDecl ); |
---|
[cc79d97] | 908 | if ( typedefNames.count( tyDecl->get_name() ) == 1 && typedefNames[ tyDecl->get_name() ].second == scopeLevel ) { |
---|
[de91427b] | 909 | // typedef to the same name from the same scope |
---|
[cc79d97] | 910 | // must be from the same type |
---|
| 911 | |
---|
| 912 | Type * t1 = tyDecl->get_base(); |
---|
| 913 | Type * t2 = typedefNames[ tyDecl->get_name() ].first->get_base(); |
---|
[1cbca6e] | 914 | if ( ! ResolvExpr::typesCompatible( t1, t2, Indexer() ) ) { |
---|
[cc79d97] | 915 | throw SemanticError( "cannot redefine typedef: " + tyDecl->get_name() ); |
---|
[85c4ef0] | 916 | } |
---|
[cc79d97] | 917 | } else { |
---|
| 918 | typedefNames[ tyDecl->get_name() ] = std::make_pair( tyDecl, scopeLevel ); |
---|
| 919 | } // if |
---|
| 920 | |
---|
[0dd3a2f] | 921 | // When a typedef is a forward declaration: |
---|
| 922 | // typedef struct screen SCREEN; |
---|
| 923 | // the declaration portion must be retained: |
---|
| 924 | // struct screen; |
---|
| 925 | // because the expansion of the typedef is: |
---|
| 926 | // void rtn( SCREEN *p ) => void rtn( struct screen *p ) |
---|
| 927 | // hence the type-name "screen" must be defined. |
---|
| 928 | // Note, qualifiers on the typedef are superfluous for the forward declaration. |
---|
| 929 | if ( StructInstType *aggDecl = dynamic_cast< StructInstType * >( tyDecl->get_base() ) ) { |
---|
| 930 | return new StructDecl( aggDecl->get_name() ); |
---|
| 931 | } else if ( UnionInstType *aggDecl = dynamic_cast< UnionInstType * >( tyDecl->get_base() ) ) { |
---|
| 932 | return new UnionDecl( aggDecl->get_name() ); |
---|
| 933 | } else { |
---|
| 934 | return ret; |
---|
| 935 | } // if |
---|
[a08ba92] | 936 | } |
---|
[c8ffe20b] | 937 | |
---|
[85c4ef0] | 938 | TypeDecl *EliminateTypedef::mutate( TypeDecl * typeDecl ) { |
---|
[cc79d97] | 939 | TypedefMap::iterator i = typedefNames.find( typeDecl->get_name() ); |
---|
[0dd3a2f] | 940 | if ( i != typedefNames.end() ) { |
---|
| 941 | typedefNames.erase( i ) ; |
---|
| 942 | } // if |
---|
| 943 | return typeDecl; |
---|
[a08ba92] | 944 | } |
---|
[c8ffe20b] | 945 | |
---|
[85c4ef0] | 946 | DeclarationWithType *EliminateTypedef::mutate( FunctionDecl * funcDecl ) { |
---|
[cc79d97] | 947 | TypedefMap oldNames = typedefNames; |
---|
[0dd3a2f] | 948 | DeclarationWithType *ret = Mutator::mutate( funcDecl ); |
---|
| 949 | typedefNames = oldNames; |
---|
| 950 | return ret; |
---|
[a08ba92] | 951 | } |
---|
[c8ffe20b] | 952 | |
---|
[1db21619] | 953 | DeclarationWithType *EliminateTypedef::mutate( ObjectDecl * objDecl ) { |
---|
[cc79d97] | 954 | TypedefMap oldNames = typedefNames; |
---|
[1db21619] | 955 | DeclarationWithType *ret = Mutator::mutate( objDecl ); |
---|
[ae4c85a] | 956 | typedefNames = oldNames; |
---|
[02e5ab6] | 957 | // is the type a function? |
---|
[1db21619] | 958 | if ( FunctionType *funtype = dynamic_cast<FunctionType *>( ret->get_type() ) ) { |
---|
[02e5ab6] | 959 | // replace the current object declaration with a function declaration |
---|
[1db21619] | 960 | return new FunctionDecl( ret->get_name(), ret->get_storageClass(), ret->get_linkage(), funtype, 0, ret->get_isInline(), ret->get_isNoreturn() ); |
---|
| 961 | } else if ( objDecl->get_isInline() || objDecl->get_isNoreturn() ) { |
---|
| 962 | throw SemanticError( "invalid inline or _Noreturn specification in declaration of ", objDecl ); |
---|
| 963 | } // if |
---|
[0dd3a2f] | 964 | return ret; |
---|
[a08ba92] | 965 | } |
---|
[c8ffe20b] | 966 | |
---|
[85c4ef0] | 967 | Expression *EliminateTypedef::mutate( CastExpr * castExpr ) { |
---|
[cc79d97] | 968 | TypedefMap oldNames = typedefNames; |
---|
[0dd3a2f] | 969 | Expression *ret = Mutator::mutate( castExpr ); |
---|
| 970 | typedefNames = oldNames; |
---|
| 971 | return ret; |
---|
[a08ba92] | 972 | } |
---|
[c8ffe20b] | 973 | |
---|
[85c4ef0] | 974 | CompoundStmt *EliminateTypedef::mutate( CompoundStmt * compoundStmt ) { |
---|
[cc79d97] | 975 | TypedefMap oldNames = typedefNames; |
---|
| 976 | scopeLevel += 1; |
---|
[0dd3a2f] | 977 | CompoundStmt *ret = Mutator::mutate( compoundStmt ); |
---|
[cc79d97] | 978 | scopeLevel -= 1; |
---|
[0dd3a2f] | 979 | std::list< Statement * >::iterator i = compoundStmt->get_kids().begin(); |
---|
| 980 | while ( i != compoundStmt->get_kids().end() ) { |
---|
[85c4ef0] | 981 | std::list< Statement * >::iterator next = i+1; |
---|
[0dd3a2f] | 982 | if ( DeclStmt *declStmt = dynamic_cast< DeclStmt * >( *i ) ) { |
---|
| 983 | if ( dynamic_cast< TypedefDecl * >( declStmt->get_decl() ) ) { |
---|
| 984 | delete *i; |
---|
| 985 | compoundStmt->get_kids().erase( i ); |
---|
| 986 | } // if |
---|
| 987 | } // if |
---|
| 988 | i = next; |
---|
| 989 | } // while |
---|
| 990 | typedefNames = oldNames; |
---|
| 991 | return ret; |
---|
[a08ba92] | 992 | } |
---|
[85c4ef0] | 993 | |
---|
| 994 | // there may be typedefs nested within aggregates |
---|
| 995 | // in order for everything to work properly, these |
---|
| 996 | // should be removed as well |
---|
| 997 | template<typename AggDecl> |
---|
| 998 | AggDecl *EliminateTypedef::handleAggregate( AggDecl * aggDecl ) { |
---|
| 999 | std::list<Declaration *>::iterator it = aggDecl->get_members().begin(); |
---|
| 1000 | for ( ; it != aggDecl->get_members().end(); ) { |
---|
| 1001 | std::list< Declaration * >::iterator next = it+1; |
---|
| 1002 | if ( dynamic_cast< TypedefDecl * >( *it ) ) { |
---|
| 1003 | delete *it; |
---|
| 1004 | aggDecl->get_members().erase( it ); |
---|
| 1005 | } // if |
---|
| 1006 | it = next; |
---|
| 1007 | } |
---|
| 1008 | return aggDecl; |
---|
| 1009 | } |
---|
| 1010 | |
---|
| 1011 | Declaration *EliminateTypedef::mutate( StructDecl * structDecl ) { |
---|
| 1012 | Mutator::mutate( structDecl ); |
---|
| 1013 | return handleAggregate( structDecl ); |
---|
| 1014 | } |
---|
| 1015 | |
---|
| 1016 | Declaration *EliminateTypedef::mutate( UnionDecl * unionDecl ) { |
---|
| 1017 | Mutator::mutate( unionDecl ); |
---|
| 1018 | return handleAggregate( unionDecl ); |
---|
| 1019 | } |
---|
| 1020 | |
---|
| 1021 | Declaration *EliminateTypedef::mutate( EnumDecl * enumDecl ) { |
---|
| 1022 | Mutator::mutate( enumDecl ); |
---|
| 1023 | return handleAggregate( enumDecl ); |
---|
| 1024 | } |
---|
| 1025 | |
---|
| 1026 | Declaration *EliminateTypedef::mutate( ContextDecl * contextDecl ) { |
---|
| 1027 | Mutator::mutate( contextDecl ); |
---|
| 1028 | return handleAggregate( contextDecl ); |
---|
| 1029 | } |
---|
| 1030 | |
---|
[51b7345] | 1031 | } // namespace SymTab |
---|
[0dd3a2f] | 1032 | |
---|
| 1033 | // Local Variables: // |
---|
| 1034 | // tab-width: 4 // |
---|
| 1035 | // mode: c++ // |
---|
| 1036 | // compile-command: "make install" // |
---|
| 1037 | // End: // |
---|