| [51587aa] | 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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| [71f4e4f] | 7 | // CodeGenerator.cc -- | 
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| [51587aa] | 8 | // | 
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|  | 9 | // Author           : Richard C. Bilson | 
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|  | 10 | // Created On       : Mon May 18 07:44:20 2015 | 
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| [e612146c] | 11 | // Last Modified By : Peter A. Buhr | 
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|  | 12 | // Last Modified On : Sun Sep  3 20:42:52 2017 | 
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|  | 13 | // Update Count     : 490 | 
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| [51587aa] | 14 | // | 
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| [3268a58] | 15 | #include "CodeGenerator.h" | 
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| [51587aa] | 16 |  | 
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| [bf2438c] | 17 | #include <cassert>                   // for assert, assertf | 
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|  | 18 | #include <list>                      // for _List_iterator, list, list<>::it... | 
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| [51b73452] | 19 |  | 
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| [bf2438c] | 20 | #include "Common/SemanticError.h"    // for SemanticError | 
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|  | 21 | #include "Common/UniqueName.h"       // for UniqueName | 
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|  | 22 | #include "Common/utility.h"          // for CodeLocation, toString | 
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|  | 23 | #include "GenType.h"                 // for genType | 
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|  | 24 | #include "InitTweak/InitTweak.h"     // for getPointerBase | 
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|  | 25 | #include "OperatorTable.h"           // for OperatorInfo, operatorLookup | 
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|  | 26 | #include "Parser/LinkageSpec.h"      // for Spec, Intrinsic | 
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|  | 27 | #include "SynTree/Attribute.h"       // for Attribute | 
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|  | 28 | #include "SynTree/BaseSyntaxNode.h"  // for BaseSyntaxNode | 
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|  | 29 | #include "SynTree/Constant.h"        // for Constant | 
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|  | 30 | #include "SynTree/Declaration.h"     // for DeclarationWithType, TypeDecl | 
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|  | 31 | #include "SynTree/Expression.h"      // for Expression, UntypedExpr, Applica... | 
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|  | 32 | #include "SynTree/Initializer.h"     // for Initializer, ListInit, Designation | 
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|  | 33 | #include "SynTree/Label.h"           // for Label, operator<< | 
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|  | 34 | #include "SynTree/Statement.h"       // for Statement, AsmStmt, BranchStmt | 
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|  | 35 | #include "SynTree/Type.h"            // for Type, Type::StorageClasses, Func... | 
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| [10a7775] | 36 |  | 
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| [51b73452] | 37 | using namespace std; | 
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|  | 38 |  | 
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|  | 39 | namespace CodeGen { | 
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| [6c4ff37] | 40 | int CodeGenerator::tabsize = 4; | 
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| [51587aa] | 41 |  | 
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| [145f1fc] | 42 | // the kinds of statements that would ideally be followed by whitespace | 
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| [2b6c1e0] | 43 | bool wantSpacing( Statement * stmt) { | 
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|  | 44 | return dynamic_cast< IfStmt * >( stmt ) || dynamic_cast< CompoundStmt * >( stmt ) || | 
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| [08061589] | 45 | dynamic_cast< WhileStmt * >( stmt ) || dynamic_cast< ForStmt * >( stmt ) || dynamic_cast< SwitchStmt *>( stmt ); | 
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| [2b6c1e0] | 46 | } | 
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|  | 47 |  | 
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| [8688ce1] | 48 | void CodeGenerator::extension( Expression * expr ) { | 
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| [8e9cbb2] | 49 | if ( expr->get_extension() ) { | 
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|  | 50 | output << "__extension__ "; | 
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|  | 51 | } // if | 
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|  | 52 | } // extension | 
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|  | 53 |  | 
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| [8688ce1] | 54 | void CodeGenerator::extension( Declaration * decl ) { | 
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| [8e9cbb2] | 55 | if ( decl->get_extension() ) { | 
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|  | 56 | output << "__extension__ "; | 
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|  | 57 | } // if | 
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|  | 58 | } // extension | 
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|  | 59 |  | 
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| [58dd019] | 60 | void CodeGenerator::asmName( DeclarationWithType * decl ) { | 
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| [e612146c] | 61 | if ( ConstantExpr * asmName = dynamic_cast<ConstantExpr *>(decl->get_asmName()) ) { | 
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| [58dd019] | 62 | output << " asm ( " << asmName->get_constant()->get_value() << " )"; | 
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|  | 63 | } // if | 
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|  | 64 | } // extension | 
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|  | 65 |  | 
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| [888cbe4] | 66 | CodeGenerator::LabelPrinter & CodeGenerator::LabelPrinter::operator()( std::list< Label > & l ) { | 
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|  | 67 | labels = &l; | 
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|  | 68 | return *this; | 
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|  | 69 | } | 
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|  | 70 |  | 
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| [8688ce1] | 71 | ostream & operator<<( ostream & output, CodeGenerator::LabelPrinter & printLabels ) { | 
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| [888cbe4] | 72 | std::list< Label > & labs = *printLabels.labels; | 
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|  | 73 | // l.unique(); // assumes a sorted list. Why not use set? Does order matter? | 
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|  | 74 | for ( Label & l : labs ) { | 
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|  | 75 | output << l.get_name() + ": "; | 
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|  | 76 | printLabels.cg.genAttributes( l.get_attributes() ); | 
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| [8688ce1] | 77 | } // for | 
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| [888cbe4] | 78 | return output; | 
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|  | 79 | } | 
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|  | 80 |  | 
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| [d22e90f] | 81 | /* Using updateLocation at the beginning of a node and endl | 
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| [8bafacc] | 82 | * within a node should become the method of formating. | 
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|  | 83 | */ | 
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|  | 84 | void CodeGenerator::updateLocation( CodeLocation const & to ) { | 
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| [d22e90f] | 85 | // skip if linemarks shouldn't appear or if codelocation is unset | 
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|  | 86 | if ( !lineMarks || to.isUnset() ) return; | 
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|  | 87 |  | 
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|  | 88 | if ( currentLocation.followedBy( to, 0 ) ) { | 
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| [8bafacc] | 89 | return; | 
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|  | 90 | } else if ( currentLocation.followedBy( to, 1 ) ) { | 
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|  | 91 | output << "\n" << indent; | 
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| [d48e529] | 92 | currentLocation.first_line += 1; | 
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| [8bafacc] | 93 | } else if ( currentLocation.followedBy( to, 2 ) ) { | 
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|  | 94 | output << "\n\n" << indent; | 
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| [d48e529] | 95 | currentLocation.first_line += 2; | 
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| [8bafacc] | 96 | } else { | 
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| [d48e529] | 97 | output << "\n# " << to.first_line << " \"" << to.filename | 
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| [8bafacc] | 98 | << "\"\n" << indent; | 
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|  | 99 | currentLocation = to; | 
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|  | 100 | } | 
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|  | 101 | output << std::flush; | 
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|  | 102 | } | 
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| [c850687] | 103 |  | 
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| [8bafacc] | 104 | void CodeGenerator::updateLocation( BaseSyntaxNode const * to ) { | 
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|  | 105 | updateLocation( to->location ); | 
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| [c850687] | 106 | } | 
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|  | 107 |  | 
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| [d22e90f] | 108 | // replace endl | 
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|  | 109 | ostream & CodeGenerator::LineEnder::operator()( ostream & os ) const { | 
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|  | 110 | // if ( !cg.lineMarks ) { | 
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|  | 111 | //      os << "\n" << cg.indent << std::flush; | 
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|  | 112 | // } | 
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|  | 113 | os << "\n" << std::flush; | 
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|  | 114 | cg.currentLocation.first_line++; | 
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|  | 115 | // os << "/* did endl; current loc is: " << cg.currentLocation.first_line << "*/"; | 
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|  | 116 | return os; | 
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| [c850687] | 117 | } | 
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|  | 118 |  | 
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| [d22e90f] | 119 | CodeGenerator::CodeGenerator( std::ostream & os, bool pretty, bool genC, bool lineMarks ) : indent( CodeGenerator::tabsize ), output( os ), printLabels( *this ), pretty( pretty ), genC( genC ), lineMarks( lineMarks ), endl( *this ) {} | 
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| [cda48b6] | 120 |  | 
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| [486341f] | 121 | string CodeGenerator::mangleName( DeclarationWithType * decl ) { | 
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| [35b1bf4] | 122 | if ( pretty ) return decl->get_name(); | 
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| [51587aa] | 123 | if ( decl->get_mangleName() != "" ) { | 
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| [f326f99] | 124 | // need to incorporate scope level in order to differentiate names for destructors | 
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|  | 125 | return decl->get_scopedMangleName(); | 
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| [51587aa] | 126 | } else { | 
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|  | 127 | return decl->get_name(); | 
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|  | 128 | } // if | 
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|  | 129 | } | 
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| [94b4364] | 130 |  | 
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| [44a81853] | 131 | void CodeGenerator::genAttributes( list< Attribute * > & attributes ) { | 
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|  | 132 | if ( attributes.empty() ) return; | 
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|  | 133 | output << "__attribute__ (("; | 
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|  | 134 | for ( list< Attribute * >::iterator attr( attributes.begin() );; ) { | 
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|  | 135 | output << (*attr)->get_name(); | 
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|  | 136 | if ( ! (*attr)->get_parameters().empty() ) { | 
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|  | 137 | output << "("; | 
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|  | 138 | genCommaList( (*attr)->get_parameters().begin(), (*attr)->get_parameters().end() ); | 
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|  | 139 | output << ")"; | 
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|  | 140 | } // if | 
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|  | 141 | if ( ++attr == attributes.end() ) break; | 
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|  | 142 | output << ",";                                                          // separator | 
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|  | 143 | } // for | 
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|  | 144 | output << ")) "; | 
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|  | 145 | } // CodeGenerator::genAttributes | 
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| [7baed7d] | 146 |  | 
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| [9857e8d] | 147 | // *** BaseSyntaxNode | 
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| [d22e90f] | 148 | void CodeGenerator::previsit( BaseSyntaxNode * node ) { | 
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| [9857e8d] | 149 | // turn off automatic recursion for all nodes, to allow each visitor to | 
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|  | 150 | // precisely control the order in which its children are visited. | 
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|  | 151 | visit_children = false; | 
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| [d22e90f] | 152 | updateLocation( node ); | 
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| [9857e8d] | 153 | } | 
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|  | 154 |  | 
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|  | 155 | // *** BaseSyntaxNode | 
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|  | 156 | void CodeGenerator::postvisit( BaseSyntaxNode * node ) { | 
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|  | 157 | std::stringstream ss; | 
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|  | 158 | node->print( ss ); | 
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|  | 159 | assertf( false, "Unhandled node reached in CodeGenerator: %s", ss.str().c_str() ); | 
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|  | 160 | } | 
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| [7baed7d] | 161 |  | 
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| [4810867] | 162 | // *** Declarations | 
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| [9857e8d] | 163 | void CodeGenerator::postvisit( FunctionDecl * functionDecl ) { | 
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| [8e9cbb2] | 164 | extension( functionDecl ); | 
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| [7baed7d] | 165 | genAttributes( functionDecl->get_attributes() ); | 
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|  | 166 |  | 
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| [51587aa] | 167 | handleStorageClass( functionDecl ); | 
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| [6e8bd43] | 168 | functionDecl->get_funcSpec().print( output ); | 
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| [dd020c0] | 169 |  | 
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| [e39241b] | 170 | output << genType( functionDecl->get_functionType(), mangleName( functionDecl ), pretty, genC ); | 
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| [51587aa] | 171 |  | 
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| [58dd019] | 172 | asmName( functionDecl ); | 
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|  | 173 |  | 
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| [51587aa] | 174 | if ( functionDecl->get_statements() ) { | 
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| [9857e8d] | 175 | functionDecl->get_statements()->accept( *visitor ); | 
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| [51587aa] | 176 | } // if | 
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|  | 177 | } | 
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|  | 178 |  | 
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| [9857e8d] | 179 | void CodeGenerator::postvisit( ObjectDecl * objectDecl ) { | 
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| [e39241b] | 180 | if (objectDecl->get_name().empty() && genC ) { | 
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|  | 181 | // only generate an anonymous name when generating C code, otherwise it clutters the output too much | 
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| [d9c8a59] | 182 | static UniqueName name = { "__anonymous_object" }; | 
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|  | 183 | objectDecl->set_name( name.newName() ); | 
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|  | 184 | } | 
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|  | 185 |  | 
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| [8e9cbb2] | 186 | extension( objectDecl ); | 
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| [f9cebb5] | 187 | genAttributes( objectDecl->get_attributes() ); | 
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|  | 188 |  | 
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| [51587aa] | 189 | handleStorageClass( objectDecl ); | 
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| [e39241b] | 190 | output << genType( objectDecl->get_type(), mangleName( objectDecl ), pretty, genC ); | 
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| [71f4e4f] | 191 |  | 
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| [58dd019] | 192 | asmName( objectDecl ); | 
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|  | 193 |  | 
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| [51587aa] | 194 | if ( objectDecl->get_init() ) { | 
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| [6c4ff37] | 195 | output << " = "; | 
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| [9857e8d] | 196 | objectDecl->get_init()->accept( *visitor ); | 
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| [51587aa] | 197 | } // if | 
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| [3778cb2] | 198 |  | 
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| [51587aa] | 199 | if ( objectDecl->get_bitfieldWidth() ) { | 
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| [6c4ff37] | 200 | output << ":"; | 
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| [9857e8d] | 201 | objectDecl->get_bitfieldWidth()->accept( *visitor ); | 
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| [51587aa] | 202 | } // if | 
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|  | 203 | } | 
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|  | 204 |  | 
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| [5f642e38] | 205 | void CodeGenerator::handleAggregate( AggregateDecl * aggDecl, const std::string & kind ) { | 
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| [c0aa336] | 206 | genAttributes( aggDecl->get_attributes() ); | 
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| [35b1bf4] | 207 |  | 
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| [e39241b] | 208 | if( ! aggDecl->get_parameters().empty() && ! genC ) { | 
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|  | 209 | // assertf( ! genC, "Aggregate type parameters should not reach code generation." ); | 
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|  | 210 | output << "forall("; | 
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|  | 211 | genCommaList( aggDecl->get_parameters().begin(), aggDecl->get_parameters().end() ); | 
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|  | 212 | output << ")" << endl; | 
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| [e6cee92] | 213 | output << indent; | 
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| [e39241b] | 214 | } | 
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|  | 215 |  | 
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| [a984e65] | 216 | output << kind << aggDecl->get_name(); | 
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| [71f4e4f] | 217 |  | 
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| [2c57025] | 218 | if ( aggDecl->has_body() ) { | 
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|  | 219 | std::list< Declaration * > & memb = aggDecl->get_members(); | 
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| [94b4364] | 220 | output << " {" << endl; | 
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| [51587aa] | 221 |  | 
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| [f7cb0bc] | 222 | ++indent; | 
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| [3778cb2] | 223 | for ( std::list< Declaration* >::iterator i = memb.begin(); i != memb.end(); i++ ) { | 
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| [87e08e24] | 224 | output << indent; | 
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| [9857e8d] | 225 | (*i)->accept( *visitor ); | 
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| [6c4ff37] | 226 | output << ";" << endl; | 
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| [3778cb2] | 227 | } // for | 
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| [51587aa] | 228 |  | 
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| [f7cb0bc] | 229 | --indent; | 
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| [51587aa] | 230 |  | 
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| [cda48b6] | 231 | output << indent << "}"; | 
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| [17cd4eb] | 232 | } // if | 
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| [51587aa] | 233 | } | 
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| [17cd4eb] | 234 |  | 
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| [9857e8d] | 235 | void CodeGenerator::postvisit( StructDecl * structDecl ) { | 
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| [8e9cbb2] | 236 | extension( structDecl ); | 
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| [5f642e38] | 237 | handleAggregate( structDecl, "struct " ); | 
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| [51587aa] | 238 | } | 
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| [17cd4eb] | 239 |  | 
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| [9857e8d] | 240 | void CodeGenerator::postvisit( UnionDecl * unionDecl ) { | 
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| [8e9cbb2] | 241 | extension( unionDecl ); | 
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| [5f642e38] | 242 | handleAggregate( unionDecl, "union " ); | 
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| [51587aa] | 243 | } | 
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| [71f4e4f] | 244 |  | 
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| [9857e8d] | 245 | void CodeGenerator::postvisit( EnumDecl * enumDecl ) { | 
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| [8e9cbb2] | 246 | extension( enumDecl ); | 
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| [6c4ff37] | 247 | output << "enum "; | 
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| [c0aa336] | 248 | genAttributes( enumDecl->get_attributes() ); | 
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| [51587aa] | 249 |  | 
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| [a984e65] | 250 | output << enumDecl->get_name(); | 
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| [71f4e4f] | 251 |  | 
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| [8e9cbb2] | 252 | std::list< Declaration* > &memb = enumDecl->get_members(); | 
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| [51587aa] | 253 |  | 
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|  | 254 | if ( ! memb.empty() ) { | 
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| [cda48b6] | 255 | output << " {" << endl; | 
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| [51587aa] | 256 |  | 
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| [f7cb0bc] | 257 | ++indent; | 
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| [51587aa] | 258 | for ( std::list< Declaration* >::iterator i = memb.begin(); i != memb.end();  i++) { | 
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| [8688ce1] | 259 | ObjectDecl * obj = dynamic_cast< ObjectDecl* >( *i ); | 
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| [51587aa] | 260 | assert( obj ); | 
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| [87e08e24] | 261 | output << indent << mangleName( obj ); | 
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| [51587aa] | 262 | if ( obj->get_init() ) { | 
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| [6c4ff37] | 263 | output << " = "; | 
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| [9857e8d] | 264 | obj->get_init()->accept( *visitor ); | 
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| [51587aa] | 265 | } // if | 
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| [6c4ff37] | 266 | output << "," << endl; | 
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| [51587aa] | 267 | } // for | 
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|  | 268 |  | 
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| [f7cb0bc] | 269 | --indent; | 
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| [51587aa] | 270 |  | 
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| [cda48b6] | 271 | output << indent << "}"; | 
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| [51587aa] | 272 | } // if | 
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|  | 273 | } | 
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| [71f4e4f] | 274 |  | 
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| [9857e8d] | 275 | void CodeGenerator::postvisit( TraitDecl * traitDecl ) { | 
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| [a0c7dc36] | 276 | assertf( ! genC, "TraitDecls should not reach code generation." ); | 
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| [a984e65] | 277 | extension( traitDecl ); | 
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|  | 278 | handleAggregate( traitDecl, "trait " ); | 
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|  | 279 | } | 
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| [71f4e4f] | 280 |  | 
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| [9857e8d] | 281 | void CodeGenerator::postvisit( TypedefDecl * typeDecl ) { | 
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| [e39241b] | 282 | assertf( ! genC, "Typedefs are removed and substituted in earlier passes." ); | 
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|  | 283 | output << "typedef "; | 
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|  | 284 | output << genType( typeDecl->get_base(), typeDecl->get_name(), pretty, genC ) << endl; | 
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| [51587aa] | 285 | } | 
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| [71f4e4f] | 286 |  | 
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| [9857e8d] | 287 | void CodeGenerator::postvisit( TypeDecl * typeDecl ) { | 
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| [a0c7dc36] | 288 | assertf( ! genC, "TypeDecls should not reach code generation." ); | 
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|  | 289 | output << typeDecl->genTypeString() << " " << typeDecl->get_name(); | 
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|  | 290 | if ( typeDecl->get_kind() != TypeDecl::Any && typeDecl->get_sized() ) { | 
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|  | 291 | output << " | sized(" << typeDecl->get_name() << ")"; | 
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|  | 292 | } | 
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|  | 293 | if ( ! typeDecl->get_assertions().empty() ) { | 
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|  | 294 | output << " | { "; | 
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|  | 295 | genCommaList( typeDecl->get_assertions().begin(), typeDecl->get_assertions().end() ); | 
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|  | 296 | output << " }"; | 
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| [e39241b] | 297 | } | 
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| [51587aa] | 298 | } | 
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|  | 299 |  | 
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| [9857e8d] | 300 | void CodeGenerator::postvisit( Designation * designation ) { | 
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| [e4d829b] | 301 | std::list< Expression * > designators = designation->get_designators(); | 
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| [e45215c] | 302 | if ( designators.size() == 0 ) return; | 
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| [e4d829b] | 303 | for ( Expression * des : designators ) { | 
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| [62423350] | 304 | if ( dynamic_cast< NameExpr * >( des ) || dynamic_cast< VariableExpr * >( des ) ) { | 
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|  | 305 | // if expression is a NameExpr or VariableExpr, then initializing aggregate member | 
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|  | 306 | output << "."; | 
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| [9857e8d] | 307 | des->accept( *visitor ); | 
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| [e4d829b] | 308 | } else { | 
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| [62423350] | 309 | // otherwise, it has to be a ConstantExpr or CastExpr, initializing array eleemnt | 
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|  | 310 | output << "["; | 
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| [9857e8d] | 311 | des->accept( *visitor ); | 
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| [62423350] | 312 | output << "]"; | 
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| [3778cb2] | 313 | } // if | 
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|  | 314 | } // for | 
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| [e45215c] | 315 | output << " = "; | 
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|  | 316 | } | 
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|  | 317 |  | 
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| [9857e8d] | 318 | void CodeGenerator::postvisit( SingleInit * init ) { | 
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|  | 319 | init->get_value()->accept( *visitor ); | 
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| [51587aa] | 320 | } | 
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|  | 321 |  | 
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| [9857e8d] | 322 | void CodeGenerator::postvisit( ListInit * init ) { | 
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| [e4d829b] | 323 | auto initBegin = init->begin(); | 
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|  | 324 | auto initEnd = init->end(); | 
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|  | 325 | auto desigBegin = init->get_designations().begin(); | 
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|  | 326 | auto desigEnd = init->get_designations().end(); | 
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|  | 327 |  | 
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| [6c4ff37] | 328 | output << "{ "; | 
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| [e4d829b] | 329 | for ( ; initBegin != initEnd && desigBegin != desigEnd; ) { | 
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| [9857e8d] | 330 | (*desigBegin)->accept( *visitor ); | 
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|  | 331 | (*initBegin)->accept( *visitor ); | 
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| [e4d829b] | 332 | ++initBegin, ++desigBegin; | 
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|  | 333 | if ( initBegin != initEnd ) { | 
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|  | 334 | output << ", "; | 
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|  | 335 | } | 
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|  | 336 | } | 
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| [6c4ff37] | 337 | output << " }"; | 
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| [e4d829b] | 338 | assertf( initBegin == initEnd && desigBegin == desigEnd, "Initializers and designators not the same length. %s", toString( init ).c_str() ); | 
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| [51587aa] | 339 | } | 
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|  | 340 |  | 
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| [d22e90f] | 341 | void CodeGenerator::postvisit( ConstructorInit * init ){ | 
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| [e39241b] | 342 | assertf( ! genC, "ConstructorInit nodes should not reach code generation." ); | 
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| [e6cee92] | 343 | // pseudo-output for constructor/destructor pairs | 
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| [d22e90f] | 344 | output << "<ctorinit>{" << endl << ++indent << "ctor: "; | 
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| [9857e8d] | 345 | maybeAccept( init->get_ctor(), *visitor ); | 
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| [d22e90f] | 346 | output << ", " << endl << indent << "dtor: "; | 
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| [9857e8d] | 347 | maybeAccept( init->get_dtor(), *visitor ); | 
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| [d22e90f] | 348 | output << endl << --indent << "}"; | 
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| [fc638d2] | 349 | } | 
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|  | 350 |  | 
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| [9857e8d] | 351 | void CodeGenerator::postvisit( Constant * constant ) { | 
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| [6c4ff37] | 352 | output << constant->get_value() ; | 
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| [51587aa] | 353 | } | 
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|  | 354 |  | 
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| [4810867] | 355 | // *** Expressions | 
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| [9857e8d] | 356 | void CodeGenerator::postvisit( ApplicationExpr * applicationExpr ) { | 
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| [e04ef3a] | 357 | extension( applicationExpr ); | 
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| [8688ce1] | 358 | if ( VariableExpr * varExpr = dynamic_cast< VariableExpr* >( applicationExpr->get_function() ) ) { | 
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| [51587aa] | 359 | OperatorInfo opInfo; | 
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|  | 360 | if ( varExpr->get_var()->get_linkage() == LinkageSpec::Intrinsic && operatorLookup( varExpr->get_var()->get_name(), opInfo ) ) { | 
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|  | 361 | std::list< Expression* >::iterator arg = applicationExpr->get_args().begin(); | 
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|  | 362 | switch ( opInfo.type ) { | 
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|  | 363 | case OT_INDEX: | 
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|  | 364 | assert( applicationExpr->get_args().size() == 2 ); | 
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| [9857e8d] | 365 | (*arg++)->accept( *visitor ); | 
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| [6c4ff37] | 366 | output << "["; | 
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| [9857e8d] | 367 | (*arg)->accept( *visitor ); | 
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| [6c4ff37] | 368 | output << "]"; | 
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| [51587aa] | 369 | break; | 
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| [71f4e4f] | 370 |  | 
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| [51587aa] | 371 | case OT_CALL: | 
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| [356189a] | 372 | // there are no intrinsic definitions of the function call operator | 
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| [51587aa] | 373 | assert( false ); | 
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|  | 374 | break; | 
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| [71f4e4f] | 375 |  | 
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| [f1e012b] | 376 | case OT_CTOR: | 
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| [c2ce2350] | 377 | case OT_DTOR: | 
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| [356189a] | 378 | if ( applicationExpr->get_args().size() == 1 ) { | 
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| [8e9cbb2] | 379 | // the expression fed into a single parameter constructor or destructor may contain side | 
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|  | 380 | // effects, so must still output this expression | 
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| [64071c2] | 381 | output << "("; | 
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| [9857e8d] | 382 | (*arg++)->accept( *visitor ); | 
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| [64071c2] | 383 | output << ") /* " << opInfo.inputName << " */"; | 
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| [356189a] | 384 | } else if ( applicationExpr->get_args().size() == 2 ) { | 
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| [c2ce2350] | 385 | // intrinsic two parameter constructors are essentially bitwise assignment | 
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| [356189a] | 386 | output << "("; | 
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| [9857e8d] | 387 | (*arg++)->accept( *visitor ); | 
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| [356189a] | 388 | output << opInfo.symbol; | 
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| [9857e8d] | 389 | (*arg)->accept( *visitor ); | 
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| [c2ce2350] | 390 | output << ") /* " << opInfo.inputName << " */"; | 
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| [356189a] | 391 | } else { | 
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| [c2ce2350] | 392 | // no constructors with 0 or more than 2 parameters | 
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| [356189a] | 393 | assert( false ); | 
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| [8688ce1] | 394 | } // if | 
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| [356189a] | 395 | break; | 
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| [f1e012b] | 396 |  | 
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| [51587aa] | 397 | case OT_PREFIX: | 
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|  | 398 | case OT_PREFIXASSIGN: | 
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|  | 399 | assert( applicationExpr->get_args().size() == 1 ); | 
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| [6c4ff37] | 400 | output << "("; | 
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|  | 401 | output << opInfo.symbol; | 
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| [9857e8d] | 402 | (*arg)->accept( *visitor ); | 
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| [6c4ff37] | 403 | output << ")"; | 
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| [51587aa] | 404 | break; | 
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| [71f4e4f] | 405 |  | 
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| [51587aa] | 406 | case OT_POSTFIX: | 
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|  | 407 | case OT_POSTFIXASSIGN: | 
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|  | 408 | assert( applicationExpr->get_args().size() == 1 ); | 
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| [9857e8d] | 409 | (*arg)->accept( *visitor ); | 
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| [6c4ff37] | 410 | output << opInfo.symbol; | 
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| [51587aa] | 411 | break; | 
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|  | 412 |  | 
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| [f1e012b] | 413 |  | 
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| [51587aa] | 414 | case OT_INFIX: | 
|---|
|  | 415 | case OT_INFIXASSIGN: | 
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|  | 416 | assert( applicationExpr->get_args().size() == 2 ); | 
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| [6c4ff37] | 417 | output << "("; | 
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| [9857e8d] | 418 | (*arg++)->accept( *visitor ); | 
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| [6c4ff37] | 419 | output << opInfo.symbol; | 
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| [9857e8d] | 420 | (*arg)->accept( *visitor ); | 
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| [6c4ff37] | 421 | output << ")"; | 
|---|
| [51587aa] | 422 | break; | 
|---|
| [71f4e4f] | 423 |  | 
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| [51587aa] | 424 | case OT_CONSTANT: | 
|---|
| [721f17a] | 425 | case OT_LABELADDRESS: | 
|---|
|  | 426 | // there are no intrinsic definitions of 0/1 or label addresses as functions | 
|---|
| [51587aa] | 427 | assert( false ); | 
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| [3778cb2] | 428 | } // switch | 
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| [17cd4eb] | 429 | } else { | 
|---|
| [9857e8d] | 430 | varExpr->accept( *visitor ); | 
|---|
| [6c4ff37] | 431 | output << "("; | 
|---|
| [51587aa] | 432 | genCommaList( applicationExpr->get_args().begin(), applicationExpr->get_args().end() ); | 
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| [6c4ff37] | 433 | output << ")"; | 
|---|
| [17cd4eb] | 434 | } // if | 
|---|
| [51587aa] | 435 | } else { | 
|---|
| [9857e8d] | 436 | applicationExpr->get_function()->accept( *visitor ); | 
|---|
| [6c4ff37] | 437 | output << "("; | 
|---|
| [51587aa] | 438 | genCommaList( applicationExpr->get_args().begin(), applicationExpr->get_args().end() ); | 
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| [6c4ff37] | 439 | output << ")"; | 
|---|
| [51587aa] | 440 | } // if | 
|---|
|  | 441 | } | 
|---|
| [71f4e4f] | 442 |  | 
|---|
| [9857e8d] | 443 | void CodeGenerator::postvisit( UntypedExpr * untypedExpr ) { | 
|---|
| [e04ef3a] | 444 | extension( untypedExpr ); | 
|---|
| [22bc276] | 445 | if ( NameExpr * nameExpr = dynamic_cast< NameExpr* >( untypedExpr->function ) ) { | 
|---|
| [51587aa] | 446 | OperatorInfo opInfo; | 
|---|
| [22bc276] | 447 | if ( operatorLookup( nameExpr->name, opInfo ) ) { | 
|---|
|  | 448 | std::list< Expression* >::iterator arg = untypedExpr->args.begin(); | 
|---|
| [51587aa] | 449 | switch ( opInfo.type ) { | 
|---|
|  | 450 | case OT_INDEX: | 
|---|
| [22bc276] | 451 | assert( untypedExpr->args.size() == 2 ); | 
|---|
| [9857e8d] | 452 | (*arg++)->accept( *visitor ); | 
|---|
| [6c4ff37] | 453 | output << "["; | 
|---|
| [9857e8d] | 454 | (*arg)->accept( *visitor ); | 
|---|
| [6c4ff37] | 455 | output << "]"; | 
|---|
| [51587aa] | 456 | break; | 
|---|
| [71f4e4f] | 457 |  | 
|---|
| [51587aa] | 458 | case OT_CALL: | 
|---|
| [f1e012b] | 459 | assert( false ); | 
|---|
|  | 460 |  | 
|---|
| [c2ce2350] | 461 | case OT_CTOR: | 
|---|
|  | 462 | case OT_DTOR: | 
|---|
| [22bc276] | 463 | if ( untypedExpr->args.size() == 1 ) { | 
|---|
| [8e9cbb2] | 464 | // the expression fed into a single parameter constructor or destructor may contain side | 
|---|
|  | 465 | // effects, so must still output this expression | 
|---|
| [64071c2] | 466 | output << "("; | 
|---|
| [9857e8d] | 467 | (*arg++)->accept( *visitor ); | 
|---|
| [64071c2] | 468 | output << ") /* " << opInfo.inputName << " */"; | 
|---|
| [c2ce2350] | 469 | } else if ( untypedExpr->get_args().size() == 2 ) { | 
|---|
|  | 470 | // intrinsic two parameter constructors are essentially bitwise assignment | 
|---|
|  | 471 | output << "("; | 
|---|
| [9857e8d] | 472 | (*arg++)->accept( *visitor ); | 
|---|
| [c2ce2350] | 473 | output << opInfo.symbol; | 
|---|
| [9857e8d] | 474 | (*arg)->accept( *visitor ); | 
|---|
| [c2ce2350] | 475 | output << ") /* " << opInfo.inputName << " */"; | 
|---|
|  | 476 | } else { | 
|---|
|  | 477 | // no constructors with 0 or more than 2 parameters | 
|---|
| [4e8949f] | 478 | assertf( ! genC, "UntypedExpr constructor/destructor with 0 or more than 2 parameters." ); | 
|---|
|  | 479 | output << "("; | 
|---|
|  | 480 | (*arg++)->accept( *visitor ); | 
|---|
|  | 481 | output << opInfo.symbol << "{ "; | 
|---|
| [22bc276] | 482 | genCommaList( arg, untypedExpr->args.end() ); | 
|---|
| [4e8949f] | 483 | output << "}) /* " << opInfo.inputName << " */"; | 
|---|
| [3778cb2] | 484 | } // if | 
|---|
| [51587aa] | 485 | break; | 
|---|
| [71f4e4f] | 486 |  | 
|---|
| [51587aa] | 487 | case OT_PREFIX: | 
|---|
|  | 488 | case OT_PREFIXASSIGN: | 
|---|
| [de62360d] | 489 | case OT_LABELADDRESS: | 
|---|
| [22bc276] | 490 | assert( untypedExpr->args.size() == 1 ); | 
|---|
| [6c4ff37] | 491 | output << "("; | 
|---|
|  | 492 | output << opInfo.symbol; | 
|---|
| [9857e8d] | 493 | (*arg)->accept( *visitor ); | 
|---|
| [6c4ff37] | 494 | output << ")"; | 
|---|
| [51587aa] | 495 | break; | 
|---|
| [71f4e4f] | 496 |  | 
|---|
| [51587aa] | 497 | case OT_POSTFIX: | 
|---|
|  | 498 | case OT_POSTFIXASSIGN: | 
|---|
| [22bc276] | 499 | assert( untypedExpr->args.size() == 1 ); | 
|---|
| [9857e8d] | 500 | (*arg)->accept( *visitor ); | 
|---|
| [6c4ff37] | 501 | output << opInfo.symbol; | 
|---|
| [51587aa] | 502 | break; | 
|---|
| [71f4e4f] | 503 |  | 
|---|
| [51587aa] | 504 | case OT_INFIX: | 
|---|
|  | 505 | case OT_INFIXASSIGN: | 
|---|
| [22bc276] | 506 | assert( untypedExpr->args.size() == 2 ); | 
|---|
| [6c4ff37] | 507 | output << "("; | 
|---|
| [9857e8d] | 508 | (*arg++)->accept( *visitor ); | 
|---|
| [6c4ff37] | 509 | output << opInfo.symbol; | 
|---|
| [9857e8d] | 510 | (*arg)->accept( *visitor ); | 
|---|
| [6c4ff37] | 511 | output << ")"; | 
|---|
| [51587aa] | 512 | break; | 
|---|
| [71f4e4f] | 513 |  | 
|---|
| [51587aa] | 514 | case OT_CONSTANT: | 
|---|
|  | 515 | // there are no intrinsic definitions of 0 or 1 as functions | 
|---|
|  | 516 | assert( false ); | 
|---|
| [3778cb2] | 517 | } // switch | 
|---|
| [51587aa] | 518 | } else { | 
|---|
| [22bc276] | 519 | // builtin routines | 
|---|
|  | 520 | nameExpr->accept( *visitor ); | 
|---|
|  | 521 | output << "("; | 
|---|
|  | 522 | genCommaList( untypedExpr->args.begin(), untypedExpr->args.end() ); | 
|---|
|  | 523 | output << ")"; | 
|---|
| [51587aa] | 524 | } // if | 
|---|
|  | 525 | } else { | 
|---|
| [22bc276] | 526 | untypedExpr->function->accept( *visitor ); | 
|---|
| [6c4ff37] | 527 | output << "("; | 
|---|
| [22bc276] | 528 | genCommaList( untypedExpr->args.begin(), untypedExpr->args.end() ); | 
|---|
| [6c4ff37] | 529 | output << ")"; | 
|---|
| [51587aa] | 530 | } // if | 
|---|
|  | 531 | } | 
|---|
| [71f4e4f] | 532 |  | 
|---|
| [9857e8d] | 533 | void CodeGenerator::postvisit( RangeExpr * rangeExpr ) { | 
|---|
| [22bc276] | 534 | rangeExpr->low->accept( *visitor ); | 
|---|
| [064e3ff] | 535 | output << " ... "; | 
|---|
| [22bc276] | 536 | rangeExpr->high->accept( *visitor ); | 
|---|
| [064e3ff] | 537 | } | 
|---|
|  | 538 |  | 
|---|
| [9857e8d] | 539 | void CodeGenerator::postvisit( NameExpr * nameExpr ) { | 
|---|
| [e04ef3a] | 540 | extension( nameExpr ); | 
|---|
| [51587aa] | 541 | OperatorInfo opInfo; | 
|---|
|  | 542 | if ( operatorLookup( nameExpr->get_name(), opInfo ) ) { | 
|---|
|  | 543 | assert( opInfo.type == OT_CONSTANT ); | 
|---|
| [6c4ff37] | 544 | output << opInfo.symbol; | 
|---|
| [51587aa] | 545 | } else { | 
|---|
| [6c4ff37] | 546 | output << nameExpr->get_name(); | 
|---|
| [51587aa] | 547 | } // if | 
|---|
|  | 548 | } | 
|---|
| [71f4e4f] | 549 |  | 
|---|
| [9857e8d] | 550 | void CodeGenerator::postvisit( AddressExpr * addressExpr ) { | 
|---|
| [e04ef3a] | 551 | extension( addressExpr ); | 
|---|
| [6c4ff37] | 552 | output << "(&"; | 
|---|
| [9857e8d] | 553 | addressExpr->arg->accept( *visitor ); | 
|---|
| [6c4ff37] | 554 | output << ")"; | 
|---|
| [51587aa] | 555 | } | 
|---|
|  | 556 |  | 
|---|
| [9857e8d] | 557 | void CodeGenerator::postvisit( LabelAddressExpr *addressExpr ) { | 
|---|
| [5809461] | 558 | extension( addressExpr ); | 
|---|
|  | 559 | output << "(&&" << addressExpr->arg << ")"; | 
|---|
|  | 560 | } | 
|---|
|  | 561 |  | 
|---|
| [9857e8d] | 562 | void CodeGenerator::postvisit( CastExpr * castExpr ) { | 
|---|
| [e04ef3a] | 563 | extension( castExpr ); | 
|---|
| [803deb1] | 564 | output << "("; | 
|---|
| [906e24d] | 565 | if ( castExpr->get_result()->isVoid() ) { | 
|---|
| [803deb1] | 566 | output << "(void)" ; | 
|---|
| [d104b02] | 567 | } else { | 
|---|
|  | 568 | // at least one result type of cast. | 
|---|
|  | 569 | // Note: previously, lvalue casts were skipped. Since it's now impossible for the user to write | 
|---|
|  | 570 | // an lvalue cast, this has been taken out. | 
|---|
| [803deb1] | 571 | output << "("; | 
|---|
| [e39241b] | 572 | output << genType( castExpr->get_result(), "", pretty, genC ); | 
|---|
| [71f4e4f] | 573 | output << ")"; | 
|---|
| [3778cb2] | 574 | } // if | 
|---|
| [9857e8d] | 575 | castExpr->get_arg()->accept( *visitor ); | 
|---|
| [803deb1] | 576 | output << ")"; | 
|---|
| [51587aa] | 577 | } | 
|---|
| [71f4e4f] | 578 |  | 
|---|
| [9857e8d] | 579 | void CodeGenerator::postvisit( VirtualCastExpr * castExpr ) { | 
|---|
| [a5f0529] | 580 | assertf( ! genC, "VirtualCastExpr should not reach code generation." ); | 
|---|
|  | 581 | extension( castExpr ); | 
|---|
|  | 582 | output << "(virtual "; | 
|---|
| [9857e8d] | 583 | castExpr->get_arg()->accept( *visitor ); | 
|---|
| [a5f0529] | 584 | output << ")"; | 
|---|
|  | 585 | } | 
|---|
|  | 586 |  | 
|---|
| [9857e8d] | 587 | void CodeGenerator::postvisit( UntypedMemberExpr * memberExpr ) { | 
|---|
| [e39241b] | 588 | assertf( ! genC, "UntypedMemberExpr should not reach code generation." ); | 
|---|
|  | 589 | extension( memberExpr ); | 
|---|
| [9857e8d] | 590 | memberExpr->get_aggregate()->accept( *visitor ); | 
|---|
| [5f642e38] | 591 | output << "."; | 
|---|
| [9857e8d] | 592 | memberExpr->get_member()->accept( *visitor ); | 
|---|
| [51587aa] | 593 | } | 
|---|
| [71f4e4f] | 594 |  | 
|---|
| [9857e8d] | 595 | void CodeGenerator::postvisit( MemberExpr * memberExpr ) { | 
|---|
| [e04ef3a] | 596 | extension( memberExpr ); | 
|---|
| [9857e8d] | 597 | memberExpr->get_aggregate()->accept( *visitor ); | 
|---|
| [6c4ff37] | 598 | output << "." << mangleName( memberExpr->get_member() ); | 
|---|
| [51587aa] | 599 | } | 
|---|
| [71f4e4f] | 600 |  | 
|---|
| [9857e8d] | 601 | void CodeGenerator::postvisit( VariableExpr * variableExpr ) { | 
|---|
| [e04ef3a] | 602 | extension( variableExpr ); | 
|---|
| [51587aa] | 603 | OperatorInfo opInfo; | 
|---|
|  | 604 | if ( variableExpr->get_var()->get_linkage() == LinkageSpec::Intrinsic && operatorLookup( variableExpr->get_var()->get_name(), opInfo ) && opInfo.type == OT_CONSTANT ) { | 
|---|
| [6c4ff37] | 605 | output << opInfo.symbol; | 
|---|
| [51587aa] | 606 | } else { | 
|---|
| [6c4ff37] | 607 | output << mangleName( variableExpr->get_var() ); | 
|---|
| [51587aa] | 608 | } // if | 
|---|
|  | 609 | } | 
|---|
| [71f4e4f] | 610 |  | 
|---|
| [9857e8d] | 611 | void CodeGenerator::postvisit( ConstantExpr * constantExpr ) { | 
|---|
| [51587aa] | 612 | assert( constantExpr->get_constant() ); | 
|---|
| [e04ef3a] | 613 | extension( constantExpr ); | 
|---|
| [9857e8d] | 614 | constantExpr->get_constant()->accept( *visitor ); | 
|---|
| [51587aa] | 615 | } | 
|---|
| [71f4e4f] | 616 |  | 
|---|
| [9857e8d] | 617 | void CodeGenerator::postvisit( SizeofExpr * sizeofExpr ) { | 
|---|
| [e04ef3a] | 618 | extension( sizeofExpr ); | 
|---|
| [6c4ff37] | 619 | output << "sizeof("; | 
|---|
| [51587aa] | 620 | if ( sizeofExpr->get_isType() ) { | 
|---|
| [e39241b] | 621 | output << genType( sizeofExpr->get_type(), "", pretty, genC ); | 
|---|
| [51587aa] | 622 | } else { | 
|---|
| [9857e8d] | 623 | sizeofExpr->get_expr()->accept( *visitor ); | 
|---|
| [51587aa] | 624 | } // if | 
|---|
| [6c4ff37] | 625 | output << ")"; | 
|---|
| [51587aa] | 626 | } | 
|---|
| [47534159] | 627 |  | 
|---|
| [9857e8d] | 628 | void CodeGenerator::postvisit( AlignofExpr * alignofExpr ) { | 
|---|
| [47534159] | 629 | // use GCC extension to avoid bumping std to C11 | 
|---|
| [8e9cbb2] | 630 | extension( alignofExpr ); | 
|---|
| [47534159] | 631 | output << "__alignof__("; | 
|---|
| [25a054f] | 632 | if ( alignofExpr->get_isType() ) { | 
|---|
| [e39241b] | 633 | output << genType( alignofExpr->get_type(), "", pretty, genC ); | 
|---|
| [47534159] | 634 | } else { | 
|---|
| [9857e8d] | 635 | alignofExpr->get_expr()->accept( *visitor ); | 
|---|
| [47534159] | 636 | } // if | 
|---|
|  | 637 | output << ")"; | 
|---|
|  | 638 | } | 
|---|
| [71f4e4f] | 639 |  | 
|---|
| [9857e8d] | 640 | void CodeGenerator::postvisit( UntypedOffsetofExpr * offsetofExpr ) { | 
|---|
| [e39241b] | 641 | assertf( ! genC, "UntypedOffsetofExpr should not reach code generation." ); | 
|---|
|  | 642 | output << "offsetof("; | 
|---|
|  | 643 | output << genType( offsetofExpr->get_type(), "", pretty, genC ); | 
|---|
|  | 644 | output << ", " << offsetofExpr->get_member(); | 
|---|
|  | 645 | output << ")"; | 
|---|
| [2a4b088] | 646 | } | 
|---|
|  | 647 |  | 
|---|
| [9857e8d] | 648 | void CodeGenerator::postvisit( OffsetofExpr * offsetofExpr ) { | 
|---|
| [25a054f] | 649 | // use GCC builtin | 
|---|
|  | 650 | output << "__builtin_offsetof("; | 
|---|
| [e39241b] | 651 | output << genType( offsetofExpr->get_type(), "", pretty, genC ); | 
|---|
| [e551c69] | 652 | output << ", " << mangleName( offsetofExpr->get_member() ); | 
|---|
| [25a054f] | 653 | output << ")"; | 
|---|
|  | 654 | } | 
|---|
| [d63eeb0] | 655 |  | 
|---|
| [9857e8d] | 656 | void CodeGenerator::postvisit( OffsetPackExpr * offsetPackExpr ) { | 
|---|
| [e39241b] | 657 | assertf( ! genC, "OffsetPackExpr should not reach code generation." ); | 
|---|
|  | 658 | output << "__CFA_offsetpack(" << genType( offsetPackExpr->get_type(), "", pretty, genC ) << ")"; | 
|---|
| [afc1045] | 659 | } | 
|---|
| [70a06f6] | 660 |  | 
|---|
| [9857e8d] | 661 | void CodeGenerator::postvisit( LogicalExpr * logicalExpr ) { | 
|---|
| [e04ef3a] | 662 | extension( logicalExpr ); | 
|---|
| [6c4ff37] | 663 | output << "("; | 
|---|
| [9857e8d] | 664 | logicalExpr->get_arg1()->accept( *visitor ); | 
|---|
| [51587aa] | 665 | if ( logicalExpr->get_isAnd() ) { | 
|---|
| [6c4ff37] | 666 | output << " && "; | 
|---|
| [51587aa] | 667 | } else { | 
|---|
| [6c4ff37] | 668 | output << " || "; | 
|---|
| [51587aa] | 669 | } // if | 
|---|
| [9857e8d] | 670 | logicalExpr->get_arg2()->accept( *visitor ); | 
|---|
| [6c4ff37] | 671 | output << ")"; | 
|---|
| [51587aa] | 672 | } | 
|---|
| [71f4e4f] | 673 |  | 
|---|
| [9857e8d] | 674 | void CodeGenerator::postvisit( ConditionalExpr * conditionalExpr ) { | 
|---|
| [e04ef3a] | 675 | extension( conditionalExpr ); | 
|---|
| [6c4ff37] | 676 | output << "("; | 
|---|
| [9857e8d] | 677 | conditionalExpr->get_arg1()->accept( *visitor ); | 
|---|
| [6c4ff37] | 678 | output << " ? "; | 
|---|
| [9857e8d] | 679 | conditionalExpr->get_arg2()->accept( *visitor ); | 
|---|
| [6c4ff37] | 680 | output << " : "; | 
|---|
| [9857e8d] | 681 | conditionalExpr->get_arg3()->accept( *visitor ); | 
|---|
| [6c4ff37] | 682 | output << ")"; | 
|---|
| [51587aa] | 683 | } | 
|---|
| [71f4e4f] | 684 |  | 
|---|
| [9857e8d] | 685 | void CodeGenerator::postvisit( CommaExpr * commaExpr ) { | 
|---|
| [e04ef3a] | 686 | extension( commaExpr ); | 
|---|
| [6c4ff37] | 687 | output << "("; | 
|---|
| [8a6cf7e] | 688 | if ( genC ) { | 
|---|
|  | 689 | // arg1 of a CommaExpr is never used, so it can be safely cast to void to reduce gcc warnings. | 
|---|
|  | 690 | commaExpr->set_arg1( new CastExpr( commaExpr->get_arg1() ) ); | 
|---|
|  | 691 | } | 
|---|
| [9857e8d] | 692 | commaExpr->get_arg1()->accept( *visitor ); | 
|---|
| [6c4ff37] | 693 | output << " , "; | 
|---|
| [9857e8d] | 694 | commaExpr->get_arg2()->accept( *visitor ); | 
|---|
| [6c4ff37] | 695 | output << ")"; | 
|---|
| [51587aa] | 696 | } | 
|---|
| [71f4e4f] | 697 |  | 
|---|
| [9857e8d] | 698 | void CodeGenerator::postvisit( TupleAssignExpr * tupleExpr ) { | 
|---|
| [d104b02] | 699 | assertf( ! genC, "TupleAssignExpr should not reach code generation." ); | 
|---|
| [9857e8d] | 700 | tupleExpr->stmtExpr->accept( *visitor ); | 
|---|
| [d104b02] | 701 | } | 
|---|
|  | 702 |  | 
|---|
| [9857e8d] | 703 | void CodeGenerator::postvisit( UntypedTupleExpr * tupleExpr ) { | 
|---|
| [e39241b] | 704 | assertf( ! genC, "UntypedTupleExpr should not reach code generation." ); | 
|---|
| [f975c65] | 705 | extension( tupleExpr ); | 
|---|
| [e39241b] | 706 | output << "["; | 
|---|
|  | 707 | genCommaList( tupleExpr->get_exprs().begin(), tupleExpr->get_exprs().end() ); | 
|---|
|  | 708 | output << "]"; | 
|---|
|  | 709 | } | 
|---|
| [907eccb] | 710 |  | 
|---|
| [9857e8d] | 711 | void CodeGenerator::postvisit( TupleExpr * tupleExpr ) { | 
|---|
| [e39241b] | 712 | assertf( ! genC, "TupleExpr should not reach code generation." ); | 
|---|
| [f975c65] | 713 | extension( tupleExpr ); | 
|---|
| [e39241b] | 714 | output << "["; | 
|---|
|  | 715 | genCommaList( tupleExpr->get_exprs().begin(), tupleExpr->get_exprs().end() ); | 
|---|
|  | 716 | output << "]"; | 
|---|
|  | 717 | } | 
|---|
| [71f4e4f] | 718 |  | 
|---|
| [9857e8d] | 719 | void CodeGenerator::postvisit( TupleIndexExpr * tupleExpr ) { | 
|---|
| [f975c65] | 720 | assertf( ! genC, "TupleIndexExpr should not reach code generation." ); | 
|---|
|  | 721 | extension( tupleExpr ); | 
|---|
| [9857e8d] | 722 | tupleExpr->get_tuple()->accept( *visitor ); | 
|---|
| [f975c65] | 723 | output << "." << tupleExpr->get_index(); | 
|---|
|  | 724 | } | 
|---|
|  | 725 |  | 
|---|
| [9857e8d] | 726 | void CodeGenerator::postvisit( TypeExpr * typeExpr ) { | 
|---|
| [e4d829b] | 727 | // if ( genC ) std::cerr << "typeexpr still exists: " << typeExpr << std::endl; | 
|---|
|  | 728 | // assertf( ! genC, "TypeExpr should not reach code generation." ); | 
|---|
|  | 729 | if ( ! genC ) { | 
|---|
|  | 730 | output<< genType( typeExpr->get_type(), "", pretty, genC ); | 
|---|
|  | 731 | } | 
|---|
| [e39241b] | 732 | } | 
|---|
| [2b6c1e0] | 733 |  | 
|---|
| [9857e8d] | 734 | void CodeGenerator::postvisit( AsmExpr * asmExpr ) { | 
|---|
| [7f5566b] | 735 | if ( asmExpr->get_inout() ) { | 
|---|
|  | 736 | output << "[ "; | 
|---|
| [9857e8d] | 737 | asmExpr->get_inout()->accept( *visitor ); | 
|---|
| [7f5566b] | 738 | output << " ] "; | 
|---|
|  | 739 | } // if | 
|---|
| [9857e8d] | 740 | asmExpr->get_constraint()->accept( *visitor ); | 
|---|
| [7f5566b] | 741 | output << " ( "; | 
|---|
| [9857e8d] | 742 | asmExpr->get_operand()->accept( *visitor ); | 
|---|
| [7f5566b] | 743 | output << " )"; | 
|---|
|  | 744 | } | 
|---|
|  | 745 |  | 
|---|
| [9857e8d] | 746 | void CodeGenerator::postvisit( CompoundLiteralExpr *compLitExpr ) { | 
|---|
| [fbcde64] | 747 | assert( compLitExpr->get_result() && dynamic_cast< ListInit * > ( compLitExpr->get_initializer() ) ); | 
|---|
| [e39241b] | 748 | output << "(" << genType( compLitExpr->get_result(), "", pretty, genC ) << ")"; | 
|---|
| [9857e8d] | 749 | compLitExpr->get_initializer()->accept( *visitor ); | 
|---|
| [3c13c03] | 750 | } | 
|---|
|  | 751 |  | 
|---|
| [9857e8d] | 752 | void CodeGenerator::postvisit( UniqueExpr * unqExpr ) { | 
|---|
| [d104b02] | 753 | assertf( ! genC, "Unique expressions should not reach code generation." ); | 
|---|
|  | 754 | output << "unq<" << unqExpr->get_id() << ">{ "; | 
|---|
| [9857e8d] | 755 | unqExpr->get_expr()->accept( *visitor ); | 
|---|
| [d104b02] | 756 | output << " }"; | 
|---|
|  | 757 | } | 
|---|
|  | 758 |  | 
|---|
| [9857e8d] | 759 | void CodeGenerator::postvisit( StmtExpr * stmtExpr ) { | 
|---|
| [3c13c03] | 760 | std::list< Statement * > & stmts = stmtExpr->get_statements()->get_kids(); | 
|---|
| [d22e90f] | 761 | output << "({" << endl; | 
|---|
| [f7cb0bc] | 762 | ++indent; | 
|---|
| [3c13c03] | 763 | unsigned int numStmts = stmts.size(); | 
|---|
|  | 764 | unsigned int i = 0; | 
|---|
|  | 765 | for ( Statement * stmt : stmts ) { | 
|---|
| [058f549] | 766 | output << indent << printLabels( stmt->get_labels() ); | 
|---|
| [3c13c03] | 767 | if ( i+1 == numStmts ) { | 
|---|
|  | 768 | // last statement in a statement expression needs to be handled specially - | 
|---|
|  | 769 | // cannot cast to void, otherwise the expression statement has no value | 
|---|
|  | 770 | if ( ExprStmt * exprStmt = dynamic_cast< ExprStmt * >( stmt ) ) { | 
|---|
| [9857e8d] | 771 | exprStmt->get_expr()->accept( *visitor ); | 
|---|
| [3c13c03] | 772 | output << ";" << endl; | 
|---|
|  | 773 | ++i; | 
|---|
|  | 774 | break; | 
|---|
|  | 775 | } | 
|---|
|  | 776 | } | 
|---|
| [9857e8d] | 777 | stmt->accept( *visitor ); | 
|---|
| [3c13c03] | 778 | output << endl; | 
|---|
|  | 779 | if ( wantSpacing( stmt ) ) { | 
|---|
|  | 780 | output << endl; | 
|---|
|  | 781 | } // if | 
|---|
|  | 782 | ++i; | 
|---|
|  | 783 | } | 
|---|
| [f7cb0bc] | 784 | --indent; | 
|---|
| [3c13c03] | 785 | output << indent << "})"; | 
|---|
| [6eb8948] | 786 | } | 
|---|
|  | 787 |  | 
|---|
| [4e8949f] | 788 | void CodeGenerator::postvisit( ConstructorExpr * expr ) { | 
|---|
|  | 789 | assertf( ! genC, "Unique expressions should not reach code generation." ); | 
|---|
|  | 790 | expr->callExpr->accept( *visitor ); | 
|---|
|  | 791 | } | 
|---|
|  | 792 |  | 
|---|
| [4810867] | 793 | // *** Statements | 
|---|
| [9857e8d] | 794 | void CodeGenerator::postvisit( CompoundStmt * compoundStmt ) { | 
|---|
| [51587aa] | 795 | std::list<Statement*> ks = compoundStmt->get_kids(); | 
|---|
| [2b6c1e0] | 796 | output << "{" << endl; | 
|---|
| [51587aa] | 797 |  | 
|---|
| [f7cb0bc] | 798 | ++indent; | 
|---|
| [51587aa] | 799 |  | 
|---|
| [7f5566b] | 800 | for ( std::list<Statement *>::iterator i = ks.begin(); i != ks.end();  i++ ) { | 
|---|
| [cda48b6] | 801 | output << indent << printLabels( (*i)->get_labels() ); | 
|---|
| [9857e8d] | 802 | (*i)->accept( *visitor ); | 
|---|
| [2b6c1e0] | 803 |  | 
|---|
| [6c4ff37] | 804 | output << endl; | 
|---|
| [2b6c1e0] | 805 | if ( wantSpacing( *i ) ) { | 
|---|
|  | 806 | output << endl; | 
|---|
| [3778cb2] | 807 | } // if | 
|---|
| [8688ce1] | 808 | } // for | 
|---|
| [f7cb0bc] | 809 | --indent; | 
|---|
| [51587aa] | 810 |  | 
|---|
| [cda48b6] | 811 | output << indent << "}"; | 
|---|
| [51587aa] | 812 | } | 
|---|
|  | 813 |  | 
|---|
| [9857e8d] | 814 | void CodeGenerator::postvisit( ExprStmt * exprStmt ) { | 
|---|
| [6c4ff37] | 815 | assert( exprStmt ); | 
|---|
| [262f085f] | 816 | if ( genC ) { | 
|---|
|  | 817 | // cast the top-level expression to void to reduce gcc warnings. | 
|---|
| [8a6cf7e] | 818 | exprStmt->set_expr( new CastExpr( exprStmt->get_expr() ) ); | 
|---|
| [262f085f] | 819 | } | 
|---|
| [9857e8d] | 820 | exprStmt->get_expr()->accept( *visitor ); | 
|---|
| [321a2481] | 821 | output << ";"; | 
|---|
| [51587aa] | 822 | } | 
|---|
|  | 823 |  | 
|---|
| [9857e8d] | 824 | void CodeGenerator::postvisit( AsmStmt * asmStmt ) { | 
|---|
| [7f5566b] | 825 | output << "asm "; | 
|---|
|  | 826 | if ( asmStmt->get_voltile() ) output << "volatile "; | 
|---|
|  | 827 | if ( ! asmStmt->get_gotolabels().empty()  ) output << "goto "; | 
|---|
|  | 828 | output << "( "; | 
|---|
| [9857e8d] | 829 | if ( asmStmt->get_instruction() ) asmStmt->get_instruction()->accept( *visitor ); | 
|---|
| [7f5566b] | 830 | output << " : "; | 
|---|
|  | 831 | genCommaList( asmStmt->get_output().begin(), asmStmt->get_output().end() ); | 
|---|
|  | 832 | output << " : "; | 
|---|
|  | 833 | genCommaList( asmStmt->get_input().begin(), asmStmt->get_input().end() ); | 
|---|
|  | 834 | output << " : "; | 
|---|
|  | 835 | genCommaList( asmStmt->get_clobber().begin(), asmStmt->get_clobber().end() ); | 
|---|
|  | 836 | if ( ! asmStmt->get_gotolabels().empty() ) { | 
|---|
|  | 837 | output << " : "; | 
|---|
|  | 838 | for ( std::list<Label>::iterator begin = asmStmt->get_gotolabels().begin();; ) { | 
|---|
|  | 839 | output << *begin++; | 
|---|
|  | 840 | if ( begin == asmStmt->get_gotolabels().end() ) break; | 
|---|
|  | 841 | output << ", "; | 
|---|
|  | 842 | } // for | 
|---|
|  | 843 | } // if | 
|---|
|  | 844 | output << " );" ; | 
|---|
|  | 845 | } | 
|---|
|  | 846 |  | 
|---|
| [9857e8d] | 847 | void CodeGenerator::postvisit( AsmDecl * asmDecl ) { | 
|---|
| [e994912] | 848 | output << "asm "; | 
|---|
|  | 849 | AsmStmt * asmStmt = asmDecl->get_stmt(); | 
|---|
|  | 850 | output << "( "; | 
|---|
| [9857e8d] | 851 | if ( asmStmt->get_instruction() ) asmStmt->get_instruction()->accept( *visitor ); | 
|---|
| [e994912] | 852 | output << " )" ; | 
|---|
|  | 853 | } | 
|---|
|  | 854 |  | 
|---|
| [9857e8d] | 855 | void CodeGenerator::postvisit( IfStmt * ifStmt ) { | 
|---|
| [7f5566b] | 856 | output << "if ( "; | 
|---|
| [9857e8d] | 857 | ifStmt->get_condition()->accept( *visitor ); | 
|---|
| [7f5566b] | 858 | output << " ) "; | 
|---|
| [51587aa] | 859 |  | 
|---|
| [9857e8d] | 860 | ifStmt->get_thenPart()->accept( *visitor ); | 
|---|
| [51587aa] | 861 |  | 
|---|
|  | 862 | if ( ifStmt->get_elsePart() != 0) { | 
|---|
| [2b6c1e0] | 863 | output << " else "; | 
|---|
| [9857e8d] | 864 | ifStmt->get_elsePart()->accept( *visitor ); | 
|---|
| [51587aa] | 865 | } // if | 
|---|
|  | 866 | } | 
|---|
|  | 867 |  | 
|---|
| [9857e8d] | 868 | void CodeGenerator::postvisit( SwitchStmt * switchStmt ) { | 
|---|
| [7f5566b] | 869 | output << "switch ( " ; | 
|---|
| [9857e8d] | 870 | switchStmt->get_condition()->accept( *visitor ); | 
|---|
| [7f5566b] | 871 | output << " ) "; | 
|---|
| [71f4e4f] | 872 |  | 
|---|
| [d22e90f] | 873 | output << "{" << endl; | 
|---|
| [f7cb0bc] | 874 | ++indent; | 
|---|
| [9857e8d] | 875 | acceptAll( switchStmt->get_statements(), *visitor ); | 
|---|
| [f7cb0bc] | 876 | --indent; | 
|---|
| [cda48b6] | 877 | output << indent << "}"; | 
|---|
| [51587aa] | 878 | } | 
|---|
|  | 879 |  | 
|---|
| [9857e8d] | 880 | void CodeGenerator::postvisit( CaseStmt * caseStmt ) { | 
|---|
| [8bafacc] | 881 | updateLocation( caseStmt ); | 
|---|
| [1dcd9554] | 882 | output << indent; | 
|---|
| [eb3261f] | 883 | if ( caseStmt->isDefault()) { | 
|---|
| [2b6c1e0] | 884 | output << "default"; | 
|---|
| [eb3261f] | 885 | } else { | 
|---|
| [2b6c1e0] | 886 | output << "case "; | 
|---|
| [9857e8d] | 887 | caseStmt->get_condition()->accept( *visitor ); | 
|---|
| [17cd4eb] | 888 | } // if | 
|---|
| [d22e90f] | 889 | output << ":" << endl; | 
|---|
| [71f4e4f] | 890 |  | 
|---|
| [51587aa] | 891 | std::list<Statement *> sts = caseStmt->get_statements(); | 
|---|
|  | 892 |  | 
|---|
| [f7cb0bc] | 893 | ++indent; | 
|---|
| [51587aa] | 894 | for ( std::list<Statement *>::iterator i = sts.begin(); i != sts.end();  i++) { | 
|---|
| [cda48b6] | 895 | output << indent << printLabels( (*i)->get_labels() )  ; | 
|---|
| [9857e8d] | 896 | (*i)->accept( *visitor ); | 
|---|
| [6c4ff37] | 897 | output << endl; | 
|---|
| [3778cb2] | 898 | } // for | 
|---|
| [f7cb0bc] | 899 | --indent; | 
|---|
| [51587aa] | 900 | } | 
|---|
|  | 901 |  | 
|---|
| [9857e8d] | 902 | void CodeGenerator::postvisit( BranchStmt * branchStmt ) { | 
|---|
| [51587aa] | 903 | switch ( branchStmt->get_type()) { | 
|---|
|  | 904 | case BranchStmt::Goto: | 
|---|
|  | 905 | if ( ! branchStmt->get_target().empty() ) | 
|---|
| [6c4ff37] | 906 | output << "goto " << branchStmt->get_target(); | 
|---|
| [71f4e4f] | 907 | else { | 
|---|
| [51587aa] | 908 | if ( branchStmt->get_computedTarget() != 0 ) { | 
|---|
| [6c4ff37] | 909 | output << "goto *"; | 
|---|
| [9857e8d] | 910 | branchStmt->get_computedTarget()->accept( *visitor ); | 
|---|
| [51587aa] | 911 | } // if | 
|---|
|  | 912 | } // if | 
|---|
|  | 913 | break; | 
|---|
|  | 914 | case BranchStmt::Break: | 
|---|
| [6c4ff37] | 915 | output << "break"; | 
|---|
| [51587aa] | 916 | break; | 
|---|
|  | 917 | case BranchStmt::Continue: | 
|---|
| [6c4ff37] | 918 | output << "continue"; | 
|---|
| [51587aa] | 919 | break; | 
|---|
| [3778cb2] | 920 | } // switch | 
|---|
| [2b6c1e0] | 921 | output << ";"; | 
|---|
| [51587aa] | 922 | } | 
|---|
|  | 923 |  | 
|---|
| [9857e8d] | 924 | void CodeGenerator::postvisit( ReturnStmt * returnStmt ) { | 
|---|
| [6c4ff37] | 925 | output << "return "; | 
|---|
| [9857e8d] | 926 | maybeAccept( returnStmt->get_expr(), *visitor ); | 
|---|
| [6c4ff37] | 927 | output << ";"; | 
|---|
| [51587aa] | 928 | } | 
|---|
|  | 929 |  | 
|---|
| [9857e8d] | 930 | void CodeGenerator::postvisit( ThrowStmt * throwStmt ) { | 
|---|
| [daf1af8] | 931 | assertf( ! genC, "Throw statements should not reach code generation." ); | 
|---|
|  | 932 |  | 
|---|
|  | 933 | output << ((throwStmt->get_kind() == ThrowStmt::Terminate) ? | 
|---|
|  | 934 | "throw" : "throwResume"); | 
|---|
|  | 935 | if (throwStmt->get_expr()) { | 
|---|
|  | 936 | output << " "; | 
|---|
| [9857e8d] | 937 | throwStmt->get_expr()->accept( *visitor ); | 
|---|
| [daf1af8] | 938 | } | 
|---|
|  | 939 | if (throwStmt->get_target()) { | 
|---|
|  | 940 | output << " _At "; | 
|---|
| [9857e8d] | 941 | throwStmt->get_target()->accept( *visitor ); | 
|---|
| [daf1af8] | 942 | } | 
|---|
|  | 943 | output << ";"; | 
|---|
|  | 944 | } | 
|---|
|  | 945 |  | 
|---|
| [9857e8d] | 946 | void CodeGenerator::postvisit( WhileStmt * whileStmt ) { | 
|---|
| [321a2481] | 947 | if ( whileStmt->get_isDoWhile() ) { | 
|---|
| [6c4ff37] | 948 | output << "do" ; | 
|---|
| [321a2481] | 949 | } else { | 
|---|
| [6c4ff37] | 950 | output << "while (" ; | 
|---|
| [9857e8d] | 951 | whileStmt->get_condition()->accept( *visitor ); | 
|---|
| [6c4ff37] | 952 | output << ")"; | 
|---|
| [51587aa] | 953 | } // if | 
|---|
| [2b6c1e0] | 954 | output << " "; | 
|---|
| [51587aa] | 955 |  | 
|---|
| [2b6c1e0] | 956 | output << CodeGenerator::printLabels( whileStmt->get_body()->get_labels() ); | 
|---|
| [9857e8d] | 957 | whileStmt->get_body()->accept( *visitor ); | 
|---|
| [51587aa] | 958 |  | 
|---|
| [cda48b6] | 959 | output << indent; | 
|---|
| [51587aa] | 960 |  | 
|---|
|  | 961 | if ( whileStmt->get_isDoWhile() ) { | 
|---|
| [6c4ff37] | 962 | output << " while (" ; | 
|---|
| [9857e8d] | 963 | whileStmt->get_condition()->accept( *visitor ); | 
|---|
| [6c4ff37] | 964 | output << ");"; | 
|---|
| [51587aa] | 965 | } // if | 
|---|
|  | 966 | } | 
|---|
|  | 967 |  | 
|---|
| [9857e8d] | 968 | void CodeGenerator::postvisit( ForStmt * forStmt ) { | 
|---|
| [8e9cbb2] | 969 | // initialization is always hoisted, so don't bother doing anything with that | 
|---|
| [145f1fc] | 970 | output << "for (;"; | 
|---|
| [51587aa] | 971 |  | 
|---|
| [321a2481] | 972 | if ( forStmt->get_condition() != 0 ) { | 
|---|
| [9857e8d] | 973 | forStmt->get_condition()->accept( *visitor ); | 
|---|
| [3778cb2] | 974 | } // if | 
|---|
| [6c4ff37] | 975 | output << ";"; | 
|---|
| [51587aa] | 976 |  | 
|---|
| [321a2481] | 977 | if ( forStmt->get_increment() != 0 ) { | 
|---|
|  | 978 | // cast the top-level expression to void to reduce gcc warnings. | 
|---|
|  | 979 | Expression * expr = new CastExpr( forStmt->get_increment() ); | 
|---|
| [9857e8d] | 980 | expr->accept( *visitor ); | 
|---|
| [3778cb2] | 981 | } // if | 
|---|
| [2b6c1e0] | 982 | output << ") "; | 
|---|
| [51587aa] | 983 |  | 
|---|
|  | 984 | if ( forStmt->get_body() != 0 ) { | 
|---|
| [2b6c1e0] | 985 | output << CodeGenerator::printLabels( forStmt->get_body()->get_labels() ); | 
|---|
| [9857e8d] | 986 | forStmt->get_body()->accept( *visitor ); | 
|---|
| [51587aa] | 987 | } // if | 
|---|
|  | 988 | } | 
|---|
|  | 989 |  | 
|---|
| [9857e8d] | 990 | void CodeGenerator::postvisit( __attribute__((unused)) NullStmt * nullStmt ) { | 
|---|
| [cda48b6] | 991 | //output << indent << CodeGenerator::printLabels( nullStmt->get_labels() ); | 
|---|
| [6c4ff37] | 992 | output << "/* null statement */ ;"; | 
|---|
| [51587aa] | 993 | } | 
|---|
|  | 994 |  | 
|---|
| [9857e8d] | 995 | void CodeGenerator::postvisit( DeclStmt * declStmt ) { | 
|---|
|  | 996 | declStmt->get_decl()->accept( *visitor ); | 
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| [71f4e4f] | 997 |  | 
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| [51587aa] | 998 | if ( doSemicolon( declStmt->get_decl() ) ) { | 
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| [6c4ff37] | 999 | output << ";"; | 
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| [51587aa] | 1000 | } // if | 
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|  | 1001 | } | 
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|  | 1002 |  | 
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| [9857e8d] | 1003 | void CodeGenerator::postvisit( ImplicitCtorDtorStmt * stmt ) { | 
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|  | 1004 | assertf( ! genC, "ImplicitCtorDtorStmts should not reach code generation." ); | 
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|  | 1005 | stmt->callStmt->accept( *visitor ); | 
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|  | 1006 | } | 
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|  | 1007 |  | 
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| [dd020c0] | 1008 | void CodeGenerator::handleStorageClass( DeclarationWithType * decl ) { | 
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| [fb04321] | 1009 | if ( decl->get_storageClasses().any() ) { | 
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| [6e8bd43] | 1010 | decl->get_storageClasses().print( output ); | 
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| [a7c90d4] | 1011 | } // if | 
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| [dd020c0] | 1012 | } // CodeGenerator::handleStorageClass | 
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| [9facf3b] | 1013 |  | 
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|  | 1014 | std::string genName( DeclarationWithType * decl ) { | 
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|  | 1015 | CodeGen::OperatorInfo opInfo; | 
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|  | 1016 | if ( operatorLookup( decl->get_name(), opInfo ) ) { | 
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|  | 1017 | return opInfo.outputName; | 
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|  | 1018 | } else { | 
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|  | 1019 | return decl->get_name(); | 
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|  | 1020 | } // if | 
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|  | 1021 | } | 
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| [51b73452] | 1022 | } // namespace CodeGen | 
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| [51587aa] | 1023 |  | 
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| [e149f77] | 1024 | std::ostream & operator<<( std::ostream & out, const BaseSyntaxNode * node ) { | 
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|  | 1025 | if ( node ) { | 
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|  | 1026 | node->print( out ); | 
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|  | 1027 | } else { | 
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|  | 1028 | out << "nullptr"; | 
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|  | 1029 | } | 
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|  | 1030 | return out; | 
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|  | 1031 | } | 
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|  | 1032 |  | 
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| [51587aa] | 1033 | // Local Variables: // | 
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|  | 1034 | // tab-width: 4 // | 
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|  | 1035 | // mode: c++ // | 
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|  | 1036 | // compile-command: "make install" // | 
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|  | 1037 | // End: // | 
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