| 1 | // |
|---|
| 2 | // Cforall Version 1.0.0 Copyright (C) 2015 University of Waterloo |
|---|
| 3 | // |
|---|
| 4 | // The contents of this file are covered under the licence agreement in the |
|---|
| 5 | // file "LICENCE" distributed with Cforall. |
|---|
| 6 | // |
|---|
| 7 | // CodeGenerator.h -- |
|---|
| 8 | // |
|---|
| 9 | // Author : Richard C. Bilson |
|---|
| 10 | // Created On : Mon May 18 07:44:20 2015 |
|---|
| 11 | // Last Modified By : Andrew Beach |
|---|
| 12 | // Last Modified On : Thu Jun 8 15:48:00 2017 |
|---|
| 13 | // Update Count : 52 |
|---|
| 14 | // |
|---|
| 15 | |
|---|
| 16 | #ifndef CODEGENV_H |
|---|
| 17 | #define CODEGENV_H |
|---|
| 18 | |
|---|
| 19 | #include <list> |
|---|
| 20 | |
|---|
| 21 | #include "SynTree/Declaration.h" |
|---|
| 22 | #include "SynTree/SynTree.h" |
|---|
| 23 | #include "SynTree/Visitor.h" |
|---|
| 24 | |
|---|
| 25 | #include "SymTab/Indexer.h" |
|---|
| 26 | |
|---|
| 27 | #include "Common/Indenter.h" |
|---|
| 28 | #include "Common/utility.h" |
|---|
| 29 | |
|---|
| 30 | namespace CodeGen { |
|---|
| 31 | class CodeGenerator : public Visitor { |
|---|
| 32 | public: |
|---|
| 33 | static int tabsize; |
|---|
| 34 | |
|---|
| 35 | CodeGenerator( std::ostream &os, bool pretty = false, bool genC = false, bool lineMarks = false ); |
|---|
| 36 | CodeGenerator( std::ostream &os, std::string, int indent = 0, bool infun = false ); |
|---|
| 37 | CodeGenerator( std::ostream &os, char *, int indent = 0, bool infun = false ); |
|---|
| 38 | |
|---|
| 39 | //*** Declaration |
|---|
| 40 | virtual void visit( StructDecl * ); |
|---|
| 41 | virtual void visit( FunctionDecl * ); |
|---|
| 42 | virtual void visit( ObjectDecl * ); |
|---|
| 43 | virtual void visit( UnionDecl *aggregateDecl ); |
|---|
| 44 | virtual void visit( EnumDecl *aggregateDecl ); |
|---|
| 45 | virtual void visit( TraitDecl *aggregateDecl ); |
|---|
| 46 | virtual void visit( TypedefDecl *typeDecl ); |
|---|
| 47 | virtual void visit( TypeDecl *typeDecl ); |
|---|
| 48 | |
|---|
| 49 | //*** Initializer |
|---|
| 50 | virtual void visit( Designation * ); |
|---|
| 51 | virtual void visit( SingleInit * ); |
|---|
| 52 | virtual void visit( ListInit * ); |
|---|
| 53 | virtual void visit( ConstructorInit * ); |
|---|
| 54 | |
|---|
| 55 | //*** Constant |
|---|
| 56 | virtual void visit( Constant * ); |
|---|
| 57 | |
|---|
| 58 | //*** Expression |
|---|
| 59 | virtual void visit( ApplicationExpr *applicationExpr ); |
|---|
| 60 | virtual void visit( UntypedExpr *untypedExpr ); |
|---|
| 61 | virtual void visit( RangeExpr * rangeExpr ); |
|---|
| 62 | virtual void visit( NameExpr *nameExpr ); |
|---|
| 63 | virtual void visit( AddressExpr *addressExpr ); |
|---|
| 64 | virtual void visit( CastExpr *castExpr ); |
|---|
| 65 | virtual void visit( UntypedMemberExpr *memberExpr ); |
|---|
| 66 | virtual void visit( MemberExpr *memberExpr ); |
|---|
| 67 | virtual void visit( VariableExpr *variableExpr ); |
|---|
| 68 | virtual void visit( ConstantExpr *constantExpr ); |
|---|
| 69 | virtual void visit( SizeofExpr *sizeofExpr ); |
|---|
| 70 | virtual void visit( AlignofExpr *alignofExpr ); |
|---|
| 71 | virtual void visit( UntypedOffsetofExpr *offsetofExpr ); |
|---|
| 72 | virtual void visit( OffsetofExpr *offsetofExpr ); |
|---|
| 73 | virtual void visit( OffsetPackExpr *offsetPackExpr ); |
|---|
| 74 | virtual void visit( LogicalExpr *logicalExpr ); |
|---|
| 75 | virtual void visit( ConditionalExpr *conditionalExpr ); |
|---|
| 76 | virtual void visit( CommaExpr *commaExpr ); |
|---|
| 77 | virtual void visit( CompoundLiteralExpr *compLitExpr ); |
|---|
| 78 | virtual void visit( UntypedTupleExpr *tupleExpr ); |
|---|
| 79 | virtual void visit( TupleExpr *tupleExpr ); |
|---|
| 80 | virtual void visit( TupleIndexExpr * tupleExpr ); |
|---|
| 81 | virtual void visit( TypeExpr *typeExpr ); |
|---|
| 82 | virtual void visit( AsmExpr * ); |
|---|
| 83 | virtual void visit( StmtExpr * ); |
|---|
| 84 | |
|---|
| 85 | //*** Statements |
|---|
| 86 | virtual void visit( CompoundStmt * ); |
|---|
| 87 | virtual void visit( ExprStmt * ); |
|---|
| 88 | virtual void visit( AsmStmt * ); |
|---|
| 89 | virtual void visit( AsmDecl * ); // special: statement in declaration context |
|---|
| 90 | virtual void visit( IfStmt * ); |
|---|
| 91 | virtual void visit( SwitchStmt * ); |
|---|
| 92 | virtual void visit( CaseStmt * ); |
|---|
| 93 | virtual void visit( BranchStmt * ); |
|---|
| 94 | virtual void visit( ReturnStmt * ); |
|---|
| 95 | virtual void visit( ThrowStmt * ); |
|---|
| 96 | virtual void visit( WhileStmt * ); |
|---|
| 97 | virtual void visit( ForStmt * ); |
|---|
| 98 | virtual void visit( NullStmt * ); |
|---|
| 99 | virtual void visit( DeclStmt * ); |
|---|
| 100 | |
|---|
| 101 | void genAttributes( std::list< Attribute * > & attributes ); |
|---|
| 102 | |
|---|
| 103 | template< class Iterator > void genCommaList( Iterator begin, Iterator end ); |
|---|
| 104 | |
|---|
| 105 | struct LabelPrinter { |
|---|
| 106 | LabelPrinter(CodeGenerator &cg) : cg(cg), labels( 0 ) {} |
|---|
| 107 | LabelPrinter & operator()( std::list< Label > & l ); |
|---|
| 108 | CodeGenerator & cg; |
|---|
| 109 | std::list< Label > * labels; |
|---|
| 110 | }; |
|---|
| 111 | |
|---|
| 112 | struct LineMarker { |
|---|
| 113 | CodeLocation const & loc; |
|---|
| 114 | bool toPrint; |
|---|
| 115 | |
|---|
| 116 | LineMarker(CodeLocation const & loc, bool toPrint); |
|---|
| 117 | }; |
|---|
| 118 | |
|---|
| 119 | LineMarker lineDirective(BaseSyntaxNode const * node); |
|---|
| 120 | |
|---|
| 121 | void asmName( DeclarationWithType *decl ); |
|---|
| 122 | |
|---|
| 123 | void extension( Expression *expr ); |
|---|
| 124 | void extension( Declaration *decl ); |
|---|
| 125 | private: |
|---|
| 126 | Indenter indent; |
|---|
| 127 | bool insideFunction; |
|---|
| 128 | std::ostream &output; |
|---|
| 129 | LabelPrinter printLabels; |
|---|
| 130 | bool pretty = false; // pretty print |
|---|
| 131 | bool genC = false; // true if output has to be C code |
|---|
| 132 | bool lineMarks = false; |
|---|
| 133 | |
|---|
| 134 | void handleStorageClass( DeclarationWithType *decl ); |
|---|
| 135 | void handleAggregate( AggregateDecl *aggDecl, const std::string & kind ); |
|---|
| 136 | void handleTypedef( NamedTypeDecl *namedType ); |
|---|
| 137 | std::string mangleName( DeclarationWithType * decl ); |
|---|
| 138 | }; // CodeGenerator |
|---|
| 139 | |
|---|
| 140 | template< class Iterator > |
|---|
| 141 | void CodeGenerator::genCommaList( Iterator begin, Iterator end ) { |
|---|
| 142 | if ( begin == end ) return; |
|---|
| 143 | for ( ;; ) { |
|---|
| 144 | (*begin++)->accept( *this ); |
|---|
| 145 | if ( begin == end ) break; |
|---|
| 146 | output << ", "; // separator |
|---|
| 147 | } // for |
|---|
| 148 | } // genCommaList |
|---|
| 149 | |
|---|
| 150 | inline bool doSemicolon( Declaration* decl ) { |
|---|
| 151 | if ( FunctionDecl* func = dynamic_cast< FunctionDecl* >( decl ) ) { |
|---|
| 152 | return ! func->get_statements(); |
|---|
| 153 | } // if |
|---|
| 154 | return true; |
|---|
| 155 | } // doSemicolon |
|---|
| 156 | |
|---|
| 157 | /// returns C-compatible name of declaration |
|---|
| 158 | std::string genName( DeclarationWithType * decl ); |
|---|
| 159 | |
|---|
| 160 | std::ostream & operator<<(std::ostream &, |
|---|
| 161 | CodeGenerator::LineMarker const &); |
|---|
| 162 | } // namespace CodeGen |
|---|
| 163 | |
|---|
| 164 | #endif // CODEGENV_H |
|---|
| 165 | |
|---|
| 166 | // Local Variables: // |
|---|
| 167 | // tab-width: 4 // |
|---|
| 168 | // mode: c++ // |
|---|
| 169 | // compile-command: "make install" // |
|---|
| 170 | // End: // |
|---|
