source: src/CodeGen/CodeGenerator.cc@ 273cde6

ADT aaron-thesis arm-eh ast-experimental cleanup-dtors deferred_resn demangler enum forall-pointer-decay jacob/cs343-translation jenkins-sandbox new-ast new-ast-unique-expr new-env no_list persistent-indexer pthread-emulation qualifiedEnum with_gc
Last change on this file since 273cde6 was 7c2a7b6, checked in by Rob Schluntz <rschlunt@…>, 8 years ago

Fix unhandled enumeration value warning
  • Property mode set to 100644
File size: 34.4 KB
RevLine 
[51587aa]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//
[71f4e4f]7// CodeGenerator.cc --
[51587aa]8//
9// Author : Richard C. Bilson
10// Created On : Mon May 18 07:44:20 2015
[e612146c]11// Last Modified By : Peter A. Buhr
12// Last Modified On : Sun Sep 3 20:42:52 2017
13// Update Count : 490
[51587aa]14//
[3268a58]15#include "CodeGenerator.h"
[51587aa]16
[bf2438c]17#include <cassert> // for assert, assertf
18#include <list> // for _List_iterator, list, list<>::it...
[51b73452]19
[bf2438c]20#include "Common/UniqueName.h" // for UniqueName
21#include "Common/utility.h" // for CodeLocation, toString
22#include "GenType.h" // for genType
23#include "InitTweak/InitTweak.h" // for getPointerBase
24#include "OperatorTable.h" // for OperatorInfo, operatorLookup
25#include "Parser/LinkageSpec.h" // for Spec, Intrinsic
26#include "SynTree/Attribute.h" // for Attribute
27#include "SynTree/BaseSyntaxNode.h" // for BaseSyntaxNode
28#include "SynTree/Constant.h" // for Constant
29#include "SynTree/Declaration.h" // for DeclarationWithType, TypeDecl
30#include "SynTree/Expression.h" // for Expression, UntypedExpr, Applica...
31#include "SynTree/Initializer.h" // for Initializer, ListInit, Designation
32#include "SynTree/Label.h" // for Label, operator<<
33#include "SynTree/Statement.h" // for Statement, AsmStmt, BranchStmt
34#include "SynTree/Type.h" // for Type, Type::StorageClasses, Func...
[10a7775]35
[51b73452]36using namespace std;
37
38namespace CodeGen {
[6c4ff37]39 int CodeGenerator::tabsize = 4;
[51587aa]40
[145f1fc]41 // the kinds of statements that would ideally be followed by whitespace
[2b6c1e0]42 bool wantSpacing( Statement * stmt) {
43 return dynamic_cast< IfStmt * >( stmt ) || dynamic_cast< CompoundStmt * >( stmt ) ||
[08061589]44 dynamic_cast< WhileStmt * >( stmt ) || dynamic_cast< ForStmt * >( stmt ) || dynamic_cast< SwitchStmt *>( stmt );
[2b6c1e0]45 }
46
[8688ce1]47 void CodeGenerator::extension( Expression * expr ) {
[8e9cbb2]48 if ( expr->get_extension() ) {
49 output << "__extension__ ";
50 } // if
51 } // extension
52
[8688ce1]53 void CodeGenerator::extension( Declaration * decl ) {
[8e9cbb2]54 if ( decl->get_extension() ) {
55 output << "__extension__ ";
56 } // if
57 } // extension
58
[58dd019]59 void CodeGenerator::asmName( DeclarationWithType * decl ) {
[e612146c]60 if ( ConstantExpr * asmName = dynamic_cast<ConstantExpr *>(decl->get_asmName()) ) {
[58dd019]61 output << " asm ( " << asmName->get_constant()->get_value() << " )";
62 } // if
63 } // extension
64
[888cbe4]65 CodeGenerator::LabelPrinter & CodeGenerator::LabelPrinter::operator()( std::list< Label > & l ) {
66 labels = &l;
67 return *this;
68 }
69
[8688ce1]70 ostream & operator<<( ostream & output, CodeGenerator::LabelPrinter & printLabels ) {
[888cbe4]71 std::list< Label > & labs = *printLabels.labels;
72 // l.unique(); // assumes a sorted list. Why not use set? Does order matter?
73 for ( Label & l : labs ) {
74 output << l.get_name() + ": ";
75 printLabels.cg.genAttributes( l.get_attributes() );
[8688ce1]76 } // for
[888cbe4]77 return output;
78 }
79
[d22e90f]80 /* Using updateLocation at the beginning of a node and endl
[8bafacc]81 * within a node should become the method of formating.
82 */
83 void CodeGenerator::updateLocation( CodeLocation const & to ) {
[d22e90f]84 // skip if linemarks shouldn't appear or if codelocation is unset
85 if ( !lineMarks || to.isUnset() ) return;
86
87 if ( currentLocation.followedBy( to, 0 ) ) {
[8bafacc]88 return;
89 } else if ( currentLocation.followedBy( to, 1 ) ) {
90 output << "\n" << indent;
[d48e529]91 currentLocation.first_line += 1;
[8bafacc]92 } else if ( currentLocation.followedBy( to, 2 ) ) {
93 output << "\n\n" << indent;
[d48e529]94 currentLocation.first_line += 2;
[8bafacc]95 } else {
[d48e529]96 output << "\n# " << to.first_line << " \"" << to.filename
[8bafacc]97 << "\"\n" << indent;
98 currentLocation = to;
99 }
100 output << std::flush;
101 }
[c850687]102
[8bafacc]103 void CodeGenerator::updateLocation( BaseSyntaxNode const * to ) {
104 updateLocation( to->location );
[c850687]105 }
106
[d22e90f]107 // replace endl
108 ostream & CodeGenerator::LineEnder::operator()( ostream & os ) const {
109 // if ( !cg.lineMarks ) {
110 // os << "\n" << cg.indent << std::flush;
111 // }
112 os << "\n" << std::flush;
113 cg.currentLocation.first_line++;
114 // os << "/* did endl; current loc is: " << cg.currentLocation.first_line << "*/";
115 return os;
[c850687]116 }
117
[d22e90f]118 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 ) {}
[cda48b6]119
[486341f]120 string CodeGenerator::mangleName( DeclarationWithType * decl ) {
[35b1bf4]121 if ( pretty ) return decl->get_name();
[51587aa]122 if ( decl->get_mangleName() != "" ) {
[f326f99]123 // need to incorporate scope level in order to differentiate names for destructors
124 return decl->get_scopedMangleName();
[51587aa]125 } else {
126 return decl->get_name();
127 } // if
128 }
[94b4364]129
[44a81853]130 void CodeGenerator::genAttributes( list< Attribute * > & attributes ) {
131 if ( attributes.empty() ) return;
132 output << "__attribute__ ((";
133 for ( list< Attribute * >::iterator attr( attributes.begin() );; ) {
134 output << (*attr)->get_name();
135 if ( ! (*attr)->get_parameters().empty() ) {
136 output << "(";
137 genCommaList( (*attr)->get_parameters().begin(), (*attr)->get_parameters().end() );
138 output << ")";
139 } // if
140 if ( ++attr == attributes.end() ) break;
141 output << ","; // separator
142 } // for
143 output << ")) ";
144 } // CodeGenerator::genAttributes
[7baed7d]145
[9857e8d]146 // *** BaseSyntaxNode
[d22e90f]147 void CodeGenerator::previsit( BaseSyntaxNode * node ) {
[9857e8d]148 // turn off automatic recursion for all nodes, to allow each visitor to
149 // precisely control the order in which its children are visited.
150 visit_children = false;
[d22e90f]151 updateLocation( node );
[9857e8d]152 }
153
154 // *** BaseSyntaxNode
155 void CodeGenerator::postvisit( BaseSyntaxNode * node ) {
156 std::stringstream ss;
157 node->print( ss );
158 assertf( false, "Unhandled node reached in CodeGenerator: %s", ss.str().c_str() );
159 }
[7baed7d]160
[4810867]161 // *** Declarations
[9857e8d]162 void CodeGenerator::postvisit( FunctionDecl * functionDecl ) {
[8e9cbb2]163 extension( functionDecl );
[7baed7d]164 genAttributes( functionDecl->get_attributes() );
165
[51587aa]166 handleStorageClass( functionDecl );
[6e8bd43]167 functionDecl->get_funcSpec().print( output );
[dd020c0]168
[e39241b]169 output << genType( functionDecl->get_functionType(), mangleName( functionDecl ), pretty, genC );
[51587aa]170
[58dd019]171 asmName( functionDecl );
172
[51587aa]173 if ( functionDecl->get_statements() ) {
[9857e8d]174 functionDecl->get_statements()->accept( *visitor );
[51587aa]175 } // if
176 }
177
[9857e8d]178 void CodeGenerator::postvisit( ObjectDecl * objectDecl ) {
[e39241b]179 if (objectDecl->get_name().empty() && genC ) {
180 // only generate an anonymous name when generating C code, otherwise it clutters the output too much
[d9c8a59]181 static UniqueName name = { "__anonymous_object" };
182 objectDecl->set_name( name.newName() );
183 }
184
[8e9cbb2]185 extension( objectDecl );
[f9cebb5]186 genAttributes( objectDecl->get_attributes() );
187
[51587aa]188 handleStorageClass( objectDecl );
[e39241b]189 output << genType( objectDecl->get_type(), mangleName( objectDecl ), pretty, genC );
[71f4e4f]190
[58dd019]191 asmName( objectDecl );
192
[51587aa]193 if ( objectDecl->get_init() ) {
[6c4ff37]194 output << " = ";
[9857e8d]195 objectDecl->get_init()->accept( *visitor );
[51587aa]196 } // if
[3778cb2]197
[51587aa]198 if ( objectDecl->get_bitfieldWidth() ) {
[6c4ff37]199 output << ":";
[9857e8d]200 objectDecl->get_bitfieldWidth()->accept( *visitor );
[51587aa]201 } // if
202 }
203
[5f642e38]204 void CodeGenerator::handleAggregate( AggregateDecl * aggDecl, const std::string & kind ) {
[c0aa336]205 genAttributes( aggDecl->get_attributes() );
[35b1bf4]206
[e39241b]207 if( ! aggDecl->get_parameters().empty() && ! genC ) {
208 // assertf( ! genC, "Aggregate type parameters should not reach code generation." );
209 output << "forall(";
210 genCommaList( aggDecl->get_parameters().begin(), aggDecl->get_parameters().end() );
211 output << ")" << endl;
[e6cee92]212 output << indent;
[e39241b]213 }
214
[a984e65]215 output << kind << aggDecl->get_name();
[71f4e4f]216
[2c57025]217 if ( aggDecl->has_body() ) {
218 std::list< Declaration * > & memb = aggDecl->get_members();
[94b4364]219 output << " {" << endl;
[51587aa]220
[f7cb0bc]221 ++indent;
[3778cb2]222 for ( std::list< Declaration* >::iterator i = memb.begin(); i != memb.end(); i++ ) {
[87e08e24]223 output << indent;
[9857e8d]224 (*i)->accept( *visitor );
[6c4ff37]225 output << ";" << endl;
[3778cb2]226 } // for
[51587aa]227
[f7cb0bc]228 --indent;
[51587aa]229
[cda48b6]230 output << indent << "}";
[17cd4eb]231 } // if
[51587aa]232 }
[17cd4eb]233
[9857e8d]234 void CodeGenerator::postvisit( StructDecl * structDecl ) {
[8e9cbb2]235 extension( structDecl );
[5f642e38]236 handleAggregate( structDecl, "struct " );
[51587aa]237 }
[17cd4eb]238
[9857e8d]239 void CodeGenerator::postvisit( UnionDecl * unionDecl ) {
[8e9cbb2]240 extension( unionDecl );
[5f642e38]241 handleAggregate( unionDecl, "union " );
[51587aa]242 }
[71f4e4f]243
[9857e8d]244 void CodeGenerator::postvisit( EnumDecl * enumDecl ) {
[8e9cbb2]245 extension( enumDecl );
[6c4ff37]246 output << "enum ";
[c0aa336]247 genAttributes( enumDecl->get_attributes() );
[51587aa]248
[a984e65]249 output << enumDecl->get_name();
[71f4e4f]250
[8e9cbb2]251 std::list< Declaration* > &memb = enumDecl->get_members();
[51587aa]252
253 if ( ! memb.empty() ) {
[cda48b6]254 output << " {" << endl;
[51587aa]255
[f7cb0bc]256 ++indent;
[51587aa]257 for ( std::list< Declaration* >::iterator i = memb.begin(); i != memb.end(); i++) {
[8688ce1]258 ObjectDecl * obj = dynamic_cast< ObjectDecl* >( *i );
[51587aa]259 assert( obj );
[87e08e24]260 output << indent << mangleName( obj );
[51587aa]261 if ( obj->get_init() ) {
[6c4ff37]262 output << " = ";
[9857e8d]263 obj->get_init()->accept( *visitor );
[51587aa]264 } // if
[6c4ff37]265 output << "," << endl;
[51587aa]266 } // for
267
[f7cb0bc]268 --indent;
[51587aa]269
[cda48b6]270 output << indent << "}";
[51587aa]271 } // if
272 }
[71f4e4f]273
[9857e8d]274 void CodeGenerator::postvisit( TraitDecl * traitDecl ) {
[a0c7dc36]275 assertf( ! genC, "TraitDecls should not reach code generation." );
[a984e65]276 extension( traitDecl );
277 handleAggregate( traitDecl, "trait " );
278 }
[71f4e4f]279
[9857e8d]280 void CodeGenerator::postvisit( TypedefDecl * typeDecl ) {
[e39241b]281 assertf( ! genC, "Typedefs are removed and substituted in earlier passes." );
282 output << "typedef ";
283 output << genType( typeDecl->get_base(), typeDecl->get_name(), pretty, genC ) << endl;
[51587aa]284 }
[71f4e4f]285
[9857e8d]286 void CodeGenerator::postvisit( TypeDecl * typeDecl ) {
[a0c7dc36]287 assertf( ! genC, "TypeDecls should not reach code generation." );
[ab4bff5]288 output << typeDecl->genTypeString() << " " << typeDecl->name;
[f0ecf9b]289 if ( typeDecl->sized ) {
[ab4bff5]290 output << " | sized(" << typeDecl->name << ")";
[a0c7dc36]291 }
[ab4bff5]292 if ( ! typeDecl->assertions.empty() ) {
[a0c7dc36]293 output << " | { ";
[ab4bff5]294 for ( DeclarationWithType * assert : typeDecl->assertions ) {
295 assert->accept( *visitor );
296 output << "; ";
297 }
[a0c7dc36]298 output << " }";
[e39241b]299 }
[51587aa]300 }
301
[9857e8d]302 void CodeGenerator::postvisit( Designation * designation ) {
[e4d829b]303 std::list< Expression * > designators = designation->get_designators();
[e45215c]304 if ( designators.size() == 0 ) return;
[e4d829b]305 for ( Expression * des : designators ) {
[62423350]306 if ( dynamic_cast< NameExpr * >( des ) || dynamic_cast< VariableExpr * >( des ) ) {
307 // if expression is a NameExpr or VariableExpr, then initializing aggregate member
308 output << ".";
[9857e8d]309 des->accept( *visitor );
[e4d829b]310 } else {
[62423350]311 // otherwise, it has to be a ConstantExpr or CastExpr, initializing array eleemnt
312 output << "[";
[9857e8d]313 des->accept( *visitor );
[62423350]314 output << "]";
[3778cb2]315 } // if
316 } // for
[e45215c]317 output << " = ";
318 }
319
[9857e8d]320 void CodeGenerator::postvisit( SingleInit * init ) {
321 init->get_value()->accept( *visitor );
[51587aa]322 }
323
[9857e8d]324 void CodeGenerator::postvisit( ListInit * init ) {
[e4d829b]325 auto initBegin = init->begin();
326 auto initEnd = init->end();
327 auto desigBegin = init->get_designations().begin();
328 auto desigEnd = init->get_designations().end();
329
[6c4ff37]330 output << "{ ";
[e4d829b]331 for ( ; initBegin != initEnd && desigBegin != desigEnd; ) {
[9857e8d]332 (*desigBegin)->accept( *visitor );
333 (*initBegin)->accept( *visitor );
[e4d829b]334 ++initBegin, ++desigBegin;
335 if ( initBegin != initEnd ) {
336 output << ", ";
337 }
338 }
[6c4ff37]339 output << " }";
[e4d829b]340 assertf( initBegin == initEnd && desigBegin == desigEnd, "Initializers and designators not the same length. %s", toString( init ).c_str() );
[51587aa]341 }
342
[d22e90f]343 void CodeGenerator::postvisit( ConstructorInit * init ){
[e39241b]344 assertf( ! genC, "ConstructorInit nodes should not reach code generation." );
[e6cee92]345 // pseudo-output for constructor/destructor pairs
[d22e90f]346 output << "<ctorinit>{" << endl << ++indent << "ctor: ";
[9857e8d]347 maybeAccept( init->get_ctor(), *visitor );
[d22e90f]348 output << ", " << endl << indent << "dtor: ";
[9857e8d]349 maybeAccept( init->get_dtor(), *visitor );
[d22e90f]350 output << endl << --indent << "}";
[fc638d2]351 }
352
[9857e8d]353 void CodeGenerator::postvisit( Constant * constant ) {
[6c4ff37]354 output << constant->get_value() ;
[51587aa]355 }
356
[4810867]357 // *** Expressions
[9857e8d]358 void CodeGenerator::postvisit( ApplicationExpr * applicationExpr ) {
[e04ef3a]359 extension( applicationExpr );
[8688ce1]360 if ( VariableExpr * varExpr = dynamic_cast< VariableExpr* >( applicationExpr->get_function() ) ) {
[51587aa]361 OperatorInfo opInfo;
362 if ( varExpr->get_var()->get_linkage() == LinkageSpec::Intrinsic && operatorLookup( varExpr->get_var()->get_name(), opInfo ) ) {
363 std::list< Expression* >::iterator arg = applicationExpr->get_args().begin();
364 switch ( opInfo.type ) {
365 case OT_INDEX:
366 assert( applicationExpr->get_args().size() == 2 );
[9857e8d]367 (*arg++)->accept( *visitor );
[6c4ff37]368 output << "[";
[9857e8d]369 (*arg)->accept( *visitor );
[6c4ff37]370 output << "]";
[51587aa]371 break;
[71f4e4f]372
[51587aa]373 case OT_CALL:
[356189a]374 // there are no intrinsic definitions of the function call operator
[51587aa]375 assert( false );
376 break;
[71f4e4f]377
[f1e012b]378 case OT_CTOR:
[c2ce2350]379 case OT_DTOR:
[356189a]380 if ( applicationExpr->get_args().size() == 1 ) {
[8e9cbb2]381 // the expression fed into a single parameter constructor or destructor may contain side
382 // effects, so must still output this expression
[64071c2]383 output << "(";
[9857e8d]384 (*arg++)->accept( *visitor );
[64071c2]385 output << ") /* " << opInfo.inputName << " */";
[356189a]386 } else if ( applicationExpr->get_args().size() == 2 ) {
[c2ce2350]387 // intrinsic two parameter constructors are essentially bitwise assignment
[356189a]388 output << "(";
[9857e8d]389 (*arg++)->accept( *visitor );
[356189a]390 output << opInfo.symbol;
[9857e8d]391 (*arg)->accept( *visitor );
[c2ce2350]392 output << ") /* " << opInfo.inputName << " */";
[356189a]393 } else {
[c2ce2350]394 // no constructors with 0 or more than 2 parameters
[356189a]395 assert( false );
[8688ce1]396 } // if
[356189a]397 break;
[f1e012b]398
[51587aa]399 case OT_PREFIX:
400 case OT_PREFIXASSIGN:
401 assert( applicationExpr->get_args().size() == 1 );
[6c4ff37]402 output << "(";
403 output << opInfo.symbol;
[9857e8d]404 (*arg)->accept( *visitor );
[6c4ff37]405 output << ")";
[51587aa]406 break;
[71f4e4f]407
[51587aa]408 case OT_POSTFIX:
409 case OT_POSTFIXASSIGN:
410 assert( applicationExpr->get_args().size() == 1 );
[9857e8d]411 (*arg)->accept( *visitor );
[6c4ff37]412 output << opInfo.symbol;
[51587aa]413 break;
414
[f1e012b]415
[51587aa]416 case OT_INFIX:
417 case OT_INFIXASSIGN:
418 assert( applicationExpr->get_args().size() == 2 );
[6c4ff37]419 output << "(";
[9857e8d]420 (*arg++)->accept( *visitor );
[6c4ff37]421 output << opInfo.symbol;
[9857e8d]422 (*arg)->accept( *visitor );
[6c4ff37]423 output << ")";
[51587aa]424 break;
[71f4e4f]425
[51587aa]426 case OT_CONSTANT:
[721f17a]427 case OT_LABELADDRESS:
428 // there are no intrinsic definitions of 0/1 or label addresses as functions
[51587aa]429 assert( false );
[3778cb2]430 } // switch
[17cd4eb]431 } else {
[9857e8d]432 varExpr->accept( *visitor );
[6c4ff37]433 output << "(";
[51587aa]434 genCommaList( applicationExpr->get_args().begin(), applicationExpr->get_args().end() );
[6c4ff37]435 output << ")";
[17cd4eb]436 } // if
[51587aa]437 } else {
[9857e8d]438 applicationExpr->get_function()->accept( *visitor );
[6c4ff37]439 output << "(";
[51587aa]440 genCommaList( applicationExpr->get_args().begin(), applicationExpr->get_args().end() );
[6c4ff37]441 output << ")";
[51587aa]442 } // if
443 }
[71f4e4f]444
[9857e8d]445 void CodeGenerator::postvisit( UntypedExpr * untypedExpr ) {
[e04ef3a]446 extension( untypedExpr );
[22bc276]447 if ( NameExpr * nameExpr = dynamic_cast< NameExpr* >( untypedExpr->function ) ) {
[51587aa]448 OperatorInfo opInfo;
[22bc276]449 if ( operatorLookup( nameExpr->name, opInfo ) ) {
450 std::list< Expression* >::iterator arg = untypedExpr->args.begin();
[51587aa]451 switch ( opInfo.type ) {
452 case OT_INDEX:
[22bc276]453 assert( untypedExpr->args.size() == 2 );
[9857e8d]454 (*arg++)->accept( *visitor );
[6c4ff37]455 output << "[";
[9857e8d]456 (*arg)->accept( *visitor );
[6c4ff37]457 output << "]";
[51587aa]458 break;
[71f4e4f]459
[51587aa]460 case OT_CALL:
[f1e012b]461 assert( false );
462
[c2ce2350]463 case OT_CTOR:
464 case OT_DTOR:
[22bc276]465 if ( untypedExpr->args.size() == 1 ) {
[8e9cbb2]466 // the expression fed into a single parameter constructor or destructor may contain side
467 // effects, so must still output this expression
[64071c2]468 output << "(";
[9857e8d]469 (*arg++)->accept( *visitor );
[64071c2]470 output << ") /* " << opInfo.inputName << " */";
[c2ce2350]471 } else if ( untypedExpr->get_args().size() == 2 ) {
472 // intrinsic two parameter constructors are essentially bitwise assignment
473 output << "(";
[9857e8d]474 (*arg++)->accept( *visitor );
[c2ce2350]475 output << opInfo.symbol;
[9857e8d]476 (*arg)->accept( *visitor );
[c2ce2350]477 output << ") /* " << opInfo.inputName << " */";
478 } else {
479 // no constructors with 0 or more than 2 parameters
[4e8949f]480 assertf( ! genC, "UntypedExpr constructor/destructor with 0 or more than 2 parameters." );
481 output << "(";
482 (*arg++)->accept( *visitor );
483 output << opInfo.symbol << "{ ";
[22bc276]484 genCommaList( arg, untypedExpr->args.end() );
[4e8949f]485 output << "}) /* " << opInfo.inputName << " */";
[3778cb2]486 } // if
[51587aa]487 break;
[71f4e4f]488
[51587aa]489 case OT_PREFIX:
490 case OT_PREFIXASSIGN:
[de62360d]491 case OT_LABELADDRESS:
[22bc276]492 assert( untypedExpr->args.size() == 1 );
[6c4ff37]493 output << "(";
494 output << opInfo.symbol;
[9857e8d]495 (*arg)->accept( *visitor );
[6c4ff37]496 output << ")";
[51587aa]497 break;
[71f4e4f]498
[51587aa]499 case OT_POSTFIX:
500 case OT_POSTFIXASSIGN:
[22bc276]501 assert( untypedExpr->args.size() == 1 );
[9857e8d]502 (*arg)->accept( *visitor );
[6c4ff37]503 output << opInfo.symbol;
[51587aa]504 break;
[71f4e4f]505
[51587aa]506 case OT_INFIX:
507 case OT_INFIXASSIGN:
[22bc276]508 assert( untypedExpr->args.size() == 2 );
[6c4ff37]509 output << "(";
[9857e8d]510 (*arg++)->accept( *visitor );
[6c4ff37]511 output << opInfo.symbol;
[9857e8d]512 (*arg)->accept( *visitor );
[6c4ff37]513 output << ")";
[51587aa]514 break;
[71f4e4f]515
[51587aa]516 case OT_CONSTANT:
517 // there are no intrinsic definitions of 0 or 1 as functions
518 assert( false );
[3778cb2]519 } // switch
[51587aa]520 } else {
[22bc276]521 // builtin routines
522 nameExpr->accept( *visitor );
523 output << "(";
524 genCommaList( untypedExpr->args.begin(), untypedExpr->args.end() );
525 output << ")";
[51587aa]526 } // if
527 } else {
[22bc276]528 untypedExpr->function->accept( *visitor );
[6c4ff37]529 output << "(";
[22bc276]530 genCommaList( untypedExpr->args.begin(), untypedExpr->args.end() );
[6c4ff37]531 output << ")";
[51587aa]532 } // if
533 }
[71f4e4f]534
[9857e8d]535 void CodeGenerator::postvisit( RangeExpr * rangeExpr ) {
[22bc276]536 rangeExpr->low->accept( *visitor );
[064e3ff]537 output << " ... ";
[22bc276]538 rangeExpr->high->accept( *visitor );
[064e3ff]539 }
540
[9857e8d]541 void CodeGenerator::postvisit( NameExpr * nameExpr ) {
[e04ef3a]542 extension( nameExpr );
[51587aa]543 OperatorInfo opInfo;
[5ea7a22]544 if ( operatorLookup( nameExpr->name, opInfo ) ) {
545 if ( opInfo.type == OT_CONSTANT ) {
546 output << opInfo.symbol;
547 } else {
548 output << opInfo.outputName;
549 }
[51587aa]550 } else {
[6c4ff37]551 output << nameExpr->get_name();
[51587aa]552 } // if
553 }
[71f4e4f]554
[9857e8d]555 void CodeGenerator::postvisit( AddressExpr * addressExpr ) {
[e04ef3a]556 extension( addressExpr );
[6c4ff37]557 output << "(&";
[9857e8d]558 addressExpr->arg->accept( *visitor );
[6c4ff37]559 output << ")";
[51587aa]560 }
561
[9857e8d]562 void CodeGenerator::postvisit( LabelAddressExpr *addressExpr ) {
[5809461]563 extension( addressExpr );
564 output << "(&&" << addressExpr->arg << ")";
565 }
566
[9857e8d]567 void CodeGenerator::postvisit( CastExpr * castExpr ) {
[e04ef3a]568 extension( castExpr );
[803deb1]569 output << "(";
[906e24d]570 if ( castExpr->get_result()->isVoid() ) {
[803deb1]571 output << "(void)" ;
[d104b02]572 } else {
573 // at least one result type of cast.
574 // Note: previously, lvalue casts were skipped. Since it's now impossible for the user to write
575 // an lvalue cast, this has been taken out.
[803deb1]576 output << "(";
[e39241b]577 output << genType( castExpr->get_result(), "", pretty, genC );
[71f4e4f]578 output << ")";
[3778cb2]579 } // if
[9857e8d]580 castExpr->get_arg()->accept( *visitor );
[803deb1]581 output << ")";
[51587aa]582 }
[71f4e4f]583
[9857e8d]584 void CodeGenerator::postvisit( VirtualCastExpr * castExpr ) {
[a5f0529]585 assertf( ! genC, "VirtualCastExpr should not reach code generation." );
586 extension( castExpr );
587 output << "(virtual ";
[9857e8d]588 castExpr->get_arg()->accept( *visitor );
[a5f0529]589 output << ")";
590 }
591
[9857e8d]592 void CodeGenerator::postvisit( UntypedMemberExpr * memberExpr ) {
[e39241b]593 assertf( ! genC, "UntypedMemberExpr should not reach code generation." );
594 extension( memberExpr );
[9857e8d]595 memberExpr->get_aggregate()->accept( *visitor );
[5f642e38]596 output << ".";
[9857e8d]597 memberExpr->get_member()->accept( *visitor );
[51587aa]598 }
[71f4e4f]599
[9857e8d]600 void CodeGenerator::postvisit( MemberExpr * memberExpr ) {
[e04ef3a]601 extension( memberExpr );
[9857e8d]602 memberExpr->get_aggregate()->accept( *visitor );
[6c4ff37]603 output << "." << mangleName( memberExpr->get_member() );
[51587aa]604 }
[71f4e4f]605
[9857e8d]606 void CodeGenerator::postvisit( VariableExpr * variableExpr ) {
[e04ef3a]607 extension( variableExpr );
[51587aa]608 OperatorInfo opInfo;
609 if ( variableExpr->get_var()->get_linkage() == LinkageSpec::Intrinsic && operatorLookup( variableExpr->get_var()->get_name(), opInfo ) && opInfo.type == OT_CONSTANT ) {
[6c4ff37]610 output << opInfo.symbol;
[51587aa]611 } else {
[6c4ff37]612 output << mangleName( variableExpr->get_var() );
[51587aa]613 } // if
614 }
[71f4e4f]615
[9857e8d]616 void CodeGenerator::postvisit( ConstantExpr * constantExpr ) {
[51587aa]617 assert( constantExpr->get_constant() );
[e04ef3a]618 extension( constantExpr );
[9857e8d]619 constantExpr->get_constant()->accept( *visitor );
[51587aa]620 }
[71f4e4f]621
[9857e8d]622 void CodeGenerator::postvisit( SizeofExpr * sizeofExpr ) {
[e04ef3a]623 extension( sizeofExpr );
[6c4ff37]624 output << "sizeof(";
[51587aa]625 if ( sizeofExpr->get_isType() ) {
[e39241b]626 output << genType( sizeofExpr->get_type(), "", pretty, genC );
[51587aa]627 } else {
[9857e8d]628 sizeofExpr->get_expr()->accept( *visitor );
[51587aa]629 } // if
[6c4ff37]630 output << ")";
[51587aa]631 }
[47534159]632
[9857e8d]633 void CodeGenerator::postvisit( AlignofExpr * alignofExpr ) {
[47534159]634 // use GCC extension to avoid bumping std to C11
[8e9cbb2]635 extension( alignofExpr );
[47534159]636 output << "__alignof__(";
[25a054f]637 if ( alignofExpr->get_isType() ) {
[e39241b]638 output << genType( alignofExpr->get_type(), "", pretty, genC );
[47534159]639 } else {
[9857e8d]640 alignofExpr->get_expr()->accept( *visitor );
[47534159]641 } // if
642 output << ")";
643 }
[71f4e4f]644
[9857e8d]645 void CodeGenerator::postvisit( UntypedOffsetofExpr * offsetofExpr ) {
[e39241b]646 assertf( ! genC, "UntypedOffsetofExpr should not reach code generation." );
647 output << "offsetof(";
648 output << genType( offsetofExpr->get_type(), "", pretty, genC );
649 output << ", " << offsetofExpr->get_member();
650 output << ")";
[2a4b088]651 }
652
[9857e8d]653 void CodeGenerator::postvisit( OffsetofExpr * offsetofExpr ) {
[25a054f]654 // use GCC builtin
655 output << "__builtin_offsetof(";
[e39241b]656 output << genType( offsetofExpr->get_type(), "", pretty, genC );
[e551c69]657 output << ", " << mangleName( offsetofExpr->get_member() );
[25a054f]658 output << ")";
659 }
[d63eeb0]660
[9857e8d]661 void CodeGenerator::postvisit( OffsetPackExpr * offsetPackExpr ) {
[e39241b]662 assertf( ! genC, "OffsetPackExpr should not reach code generation." );
663 output << "__CFA_offsetpack(" << genType( offsetPackExpr->get_type(), "", pretty, genC ) << ")";
[afc1045]664 }
[70a06f6]665
[9857e8d]666 void CodeGenerator::postvisit( LogicalExpr * logicalExpr ) {
[e04ef3a]667 extension( logicalExpr );
[6c4ff37]668 output << "(";
[9857e8d]669 logicalExpr->get_arg1()->accept( *visitor );
[51587aa]670 if ( logicalExpr->get_isAnd() ) {
[6c4ff37]671 output << " && ";
[51587aa]672 } else {
[6c4ff37]673 output << " || ";
[51587aa]674 } // if
[9857e8d]675 logicalExpr->get_arg2()->accept( *visitor );
[6c4ff37]676 output << ")";
[51587aa]677 }
[71f4e4f]678
[9857e8d]679 void CodeGenerator::postvisit( ConditionalExpr * conditionalExpr ) {
[e04ef3a]680 extension( conditionalExpr );
[6c4ff37]681 output << "(";
[9857e8d]682 conditionalExpr->get_arg1()->accept( *visitor );
[6c4ff37]683 output << " ? ";
[9857e8d]684 conditionalExpr->get_arg2()->accept( *visitor );
[6c4ff37]685 output << " : ";
[9857e8d]686 conditionalExpr->get_arg3()->accept( *visitor );
[6c4ff37]687 output << ")";
[51587aa]688 }
[71f4e4f]689
[9857e8d]690 void CodeGenerator::postvisit( CommaExpr * commaExpr ) {
[e04ef3a]691 extension( commaExpr );
[6c4ff37]692 output << "(";
[8a6cf7e]693 if ( genC ) {
694 // arg1 of a CommaExpr is never used, so it can be safely cast to void to reduce gcc warnings.
695 commaExpr->set_arg1( new CastExpr( commaExpr->get_arg1() ) );
696 }
[9857e8d]697 commaExpr->get_arg1()->accept( *visitor );
[6c4ff37]698 output << " , ";
[9857e8d]699 commaExpr->get_arg2()->accept( *visitor );
[6c4ff37]700 output << ")";
[51587aa]701 }
[71f4e4f]702
[9857e8d]703 void CodeGenerator::postvisit( TupleAssignExpr * tupleExpr ) {
[d104b02]704 assertf( ! genC, "TupleAssignExpr should not reach code generation." );
[9857e8d]705 tupleExpr->stmtExpr->accept( *visitor );
[d104b02]706 }
707
[9857e8d]708 void CodeGenerator::postvisit( UntypedTupleExpr * tupleExpr ) {
[e39241b]709 assertf( ! genC, "UntypedTupleExpr should not reach code generation." );
[f975c65]710 extension( tupleExpr );
[e39241b]711 output << "[";
712 genCommaList( tupleExpr->get_exprs().begin(), tupleExpr->get_exprs().end() );
713 output << "]";
714 }
[907eccb]715
[9857e8d]716 void CodeGenerator::postvisit( TupleExpr * tupleExpr ) {
[e39241b]717 assertf( ! genC, "TupleExpr should not reach code generation." );
[f975c65]718 extension( tupleExpr );
[e39241b]719 output << "[";
720 genCommaList( tupleExpr->get_exprs().begin(), tupleExpr->get_exprs().end() );
721 output << "]";
722 }
[71f4e4f]723
[9857e8d]724 void CodeGenerator::postvisit( TupleIndexExpr * tupleExpr ) {
[f975c65]725 assertf( ! genC, "TupleIndexExpr should not reach code generation." );
726 extension( tupleExpr );
[9857e8d]727 tupleExpr->get_tuple()->accept( *visitor );
[f975c65]728 output << "." << tupleExpr->get_index();
729 }
730
[9857e8d]731 void CodeGenerator::postvisit( TypeExpr * typeExpr ) {
[e4d829b]732 // if ( genC ) std::cerr << "typeexpr still exists: " << typeExpr << std::endl;
733 // assertf( ! genC, "TypeExpr should not reach code generation." );
734 if ( ! genC ) {
735 output<< genType( typeExpr->get_type(), "", pretty, genC );
736 }
[e39241b]737 }
[2b6c1e0]738
[9857e8d]739 void CodeGenerator::postvisit( AsmExpr * asmExpr ) {
[7f5566b]740 if ( asmExpr->get_inout() ) {
741 output << "[ ";
[9857e8d]742 asmExpr->get_inout()->accept( *visitor );
[7f5566b]743 output << " ] ";
744 } // if
[9857e8d]745 asmExpr->get_constraint()->accept( *visitor );
[7f5566b]746 output << " ( ";
[9857e8d]747 asmExpr->get_operand()->accept( *visitor );
[7f5566b]748 output << " )";
749 }
750
[9857e8d]751 void CodeGenerator::postvisit( CompoundLiteralExpr *compLitExpr ) {
[fbcde64]752 assert( compLitExpr->get_result() && dynamic_cast< ListInit * > ( compLitExpr->get_initializer() ) );
[e39241b]753 output << "(" << genType( compLitExpr->get_result(), "", pretty, genC ) << ")";
[9857e8d]754 compLitExpr->get_initializer()->accept( *visitor );
[3c13c03]755 }
756
[9857e8d]757 void CodeGenerator::postvisit( UniqueExpr * unqExpr ) {
[d104b02]758 assertf( ! genC, "Unique expressions should not reach code generation." );
759 output << "unq<" << unqExpr->get_id() << ">{ ";
[9857e8d]760 unqExpr->get_expr()->accept( *visitor );
[d104b02]761 output << " }";
762 }
763
[9857e8d]764 void CodeGenerator::postvisit( StmtExpr * stmtExpr ) {
[44b4114]765 std::list< Statement * > & stmts = stmtExpr->statements->kids;
[d22e90f]766 output << "({" << endl;
[f7cb0bc]767 ++indent;
[3c13c03]768 unsigned int numStmts = stmts.size();
769 unsigned int i = 0;
770 for ( Statement * stmt : stmts ) {
[058f549]771 output << indent << printLabels( stmt->get_labels() );
[3c13c03]772 if ( i+1 == numStmts ) {
773 // last statement in a statement expression needs to be handled specially -
774 // cannot cast to void, otherwise the expression statement has no value
775 if ( ExprStmt * exprStmt = dynamic_cast< ExprStmt * >( stmt ) ) {
[44b4114]776 exprStmt->expr->accept( *visitor );
[3c13c03]777 output << ";" << endl;
778 ++i;
779 break;
780 }
781 }
[9857e8d]782 stmt->accept( *visitor );
[3c13c03]783 output << endl;
784 if ( wantSpacing( stmt ) ) {
785 output << endl;
786 } // if
787 ++i;
788 }
[f7cb0bc]789 --indent;
[3c13c03]790 output << indent << "})";
[6eb8948]791 }
792
[4e8949f]793 void CodeGenerator::postvisit( ConstructorExpr * expr ) {
794 assertf( ! genC, "Unique expressions should not reach code generation." );
795 expr->callExpr->accept( *visitor );
796 }
797
[44b4114]798 void CodeGenerator::postvisit( DeletedExpr * expr ) {
799 assertf( ! genC, "Deleted expressions should not reach code generation." );
800 expr->expr->accept( *visitor );
801 }
802
[4810867]803 // *** Statements
[9857e8d]804 void CodeGenerator::postvisit( CompoundStmt * compoundStmt ) {
[51587aa]805 std::list<Statement*> ks = compoundStmt->get_kids();
[2b6c1e0]806 output << "{" << endl;
[51587aa]807
[f7cb0bc]808 ++indent;
[51587aa]809
[7f5566b]810 for ( std::list<Statement *>::iterator i = ks.begin(); i != ks.end(); i++ ) {
[cda48b6]811 output << indent << printLabels( (*i)->get_labels() );
[9857e8d]812 (*i)->accept( *visitor );
[2b6c1e0]813
[6c4ff37]814 output << endl;
[2b6c1e0]815 if ( wantSpacing( *i ) ) {
816 output << endl;
[3778cb2]817 } // if
[8688ce1]818 } // for
[f7cb0bc]819 --indent;
[51587aa]820
[cda48b6]821 output << indent << "}";
[51587aa]822 }
823
[9857e8d]824 void CodeGenerator::postvisit( ExprStmt * exprStmt ) {
[6c4ff37]825 assert( exprStmt );
[262f085f]826 if ( genC ) {
827 // cast the top-level expression to void to reduce gcc warnings.
[8a6cf7e]828 exprStmt->set_expr( new CastExpr( exprStmt->get_expr() ) );
[262f085f]829 }
[9857e8d]830 exprStmt->get_expr()->accept( *visitor );
[321a2481]831 output << ";";
[51587aa]832 }
833
[9857e8d]834 void CodeGenerator::postvisit( AsmStmt * asmStmt ) {
[7f5566b]835 output << "asm ";
836 if ( asmStmt->get_voltile() ) output << "volatile ";
837 if ( ! asmStmt->get_gotolabels().empty() ) output << "goto ";
838 output << "( ";
[9857e8d]839 if ( asmStmt->get_instruction() ) asmStmt->get_instruction()->accept( *visitor );
[7f5566b]840 output << " : ";
841 genCommaList( asmStmt->get_output().begin(), asmStmt->get_output().end() );
842 output << " : ";
843 genCommaList( asmStmt->get_input().begin(), asmStmt->get_input().end() );
844 output << " : ";
845 genCommaList( asmStmt->get_clobber().begin(), asmStmt->get_clobber().end() );
846 if ( ! asmStmt->get_gotolabels().empty() ) {
847 output << " : ";
848 for ( std::list<Label>::iterator begin = asmStmt->get_gotolabels().begin();; ) {
849 output << *begin++;
850 if ( begin == asmStmt->get_gotolabels().end() ) break;
851 output << ", ";
852 } // for
853 } // if
854 output << " );" ;
855 }
856
[9857e8d]857 void CodeGenerator::postvisit( AsmDecl * asmDecl ) {
[e994912]858 output << "asm ";
859 AsmStmt * asmStmt = asmDecl->get_stmt();
860 output << "( ";
[9857e8d]861 if ( asmStmt->get_instruction() ) asmStmt->get_instruction()->accept( *visitor );
[e994912]862 output << " )" ;
863 }
864
[9857e8d]865 void CodeGenerator::postvisit( IfStmt * ifStmt ) {
[7f5566b]866 output << "if ( ";
[9857e8d]867 ifStmt->get_condition()->accept( *visitor );
[7f5566b]868 output << " ) ";
[51587aa]869
[9857e8d]870 ifStmt->get_thenPart()->accept( *visitor );
[51587aa]871
872 if ( ifStmt->get_elsePart() != 0) {
[2b6c1e0]873 output << " else ";
[9857e8d]874 ifStmt->get_elsePart()->accept( *visitor );
[51587aa]875 } // if
876 }
877
[9857e8d]878 void CodeGenerator::postvisit( SwitchStmt * switchStmt ) {
[7f5566b]879 output << "switch ( " ;
[9857e8d]880 switchStmt->get_condition()->accept( *visitor );
[7f5566b]881 output << " ) ";
[71f4e4f]882
[d22e90f]883 output << "{" << endl;
[f7cb0bc]884 ++indent;
[9857e8d]885 acceptAll( switchStmt->get_statements(), *visitor );
[f7cb0bc]886 --indent;
[cda48b6]887 output << indent << "}";
[51587aa]888 }
889
[9857e8d]890 void CodeGenerator::postvisit( CaseStmt * caseStmt ) {
[8bafacc]891 updateLocation( caseStmt );
[1dcd9554]892 output << indent;
[eb3261f]893 if ( caseStmt->isDefault()) {
[2b6c1e0]894 output << "default";
[eb3261f]895 } else {
[2b6c1e0]896 output << "case ";
[9857e8d]897 caseStmt->get_condition()->accept( *visitor );
[17cd4eb]898 } // if
[d22e90f]899 output << ":" << endl;
[71f4e4f]900
[51587aa]901 std::list<Statement *> sts = caseStmt->get_statements();
902
[f7cb0bc]903 ++indent;
[51587aa]904 for ( std::list<Statement *>::iterator i = sts.begin(); i != sts.end(); i++) {
[cda48b6]905 output << indent << printLabels( (*i)->get_labels() ) ;
[9857e8d]906 (*i)->accept( *visitor );
[6c4ff37]907 output << endl;
[3778cb2]908 } // for
[f7cb0bc]909 --indent;
[51587aa]910 }
911
[9857e8d]912 void CodeGenerator::postvisit( BranchStmt * branchStmt ) {
[51587aa]913 switch ( branchStmt->get_type()) {
914 case BranchStmt::Goto:
915 if ( ! branchStmt->get_target().empty() )
[6c4ff37]916 output << "goto " << branchStmt->get_target();
[71f4e4f]917 else {
[51587aa]918 if ( branchStmt->get_computedTarget() != 0 ) {
[6c4ff37]919 output << "goto *";
[9857e8d]920 branchStmt->get_computedTarget()->accept( *visitor );
[51587aa]921 } // if
922 } // if
923 break;
924 case BranchStmt::Break:
[6c4ff37]925 output << "break";
[51587aa]926 break;
927 case BranchStmt::Continue:
[6c4ff37]928 output << "continue";
[51587aa]929 break;
[7c2a7b6]930 case BranchStmt::FallThrough:
931 case BranchStmt::FallThroughDefault:
932 assertf( ! genC, "fallthru should not reach code generation." );
933 output << "fallthru";
934 break;
[3778cb2]935 } // switch
[7c2a7b6]936 // print branch target for labelled break/continue/fallthru in debug mode
937 if ( ! genC && branchStmt->get_type() != BranchStmt::Goto ) {
938 if ( ! branchStmt->get_target().empty() ) {
939 output << " " << branchStmt->get_target();
940 } else if ( branchStmt->get_type() == BranchStmt::FallThrough ) {
941 output << " default";
942 }
943 }
[2b6c1e0]944 output << ";";
[51587aa]945 }
946
[9857e8d]947 void CodeGenerator::postvisit( ReturnStmt * returnStmt ) {
[6c4ff37]948 output << "return ";
[9857e8d]949 maybeAccept( returnStmt->get_expr(), *visitor );
[6c4ff37]950 output << ";";
[51587aa]951 }
952
[9857e8d]953 void CodeGenerator::postvisit( ThrowStmt * throwStmt ) {
[daf1af8]954 assertf( ! genC, "Throw statements should not reach code generation." );
955
956 output << ((throwStmt->get_kind() == ThrowStmt::Terminate) ?
957 "throw" : "throwResume");
958 if (throwStmt->get_expr()) {
959 output << " ";
[9857e8d]960 throwStmt->get_expr()->accept( *visitor );
[daf1af8]961 }
962 if (throwStmt->get_target()) {
963 output << " _At ";
[9857e8d]964 throwStmt->get_target()->accept( *visitor );
[daf1af8]965 }
966 output << ";";
967 }
[e4ea10b7]968 void CodeGenerator::postvisit( CatchStmt * stmt ) {
969 assertf( ! genC, "Catch statements should not reach code generation." );
970
971 output << ((stmt->get_kind() == CatchStmt::Terminate) ?
972 "catch" : "catchResume");
973 output << "( ";
974 stmt->decl->accept( *visitor );
975 output << " ) ";
976
977 if( stmt->cond ) {
978 output << "if/when(?) (";
979 stmt->cond->accept( *visitor );
980 output << ") ";
981 }
982 stmt->body->accept( *visitor );
983 }
984
985 void CodeGenerator::postvisit( WaitForStmt * stmt ) {
986 assertf( ! genC, "Waitfor statements should not reach code generation." );
987
988 bool first = true;
989 for( auto & clause : stmt->clauses ) {
990 if(first) { output << "or "; first = false; }
991 if( clause.condition ) {
992 output << "when(";
993 stmt->timeout.condition->accept( *visitor );
994 output << ") ";
995 }
996 output << "waitfor(";
997 clause.target.function->accept( *visitor );
998 for( Expression * expr : clause.target.arguments ) {
999 output << ",";
1000 expr->accept( *visitor );
1001 }
1002 output << ") ";
1003 clause.statement->accept( *visitor );
1004 }
1005
1006 if( stmt->timeout.statement ) {
1007 output << "or ";
1008 if( stmt->timeout.condition ) {
1009 output << "when(";
1010 stmt->timeout.condition->accept( *visitor );
1011 output << ") ";
1012 }
1013 output << "timeout(";
1014 stmt->timeout.time->accept( *visitor );
1015 output << ") ";
1016 stmt->timeout.statement->accept( *visitor );
1017 }
1018
1019 if( stmt->orelse.statement ) {
1020 output << "or ";
1021 if( stmt->orelse.condition ) {
1022 output << "when(";
1023 stmt->orelse.condition->accept( *visitor );
1024 output << ")";
1025 }
1026 output << "else ";
1027 stmt->orelse.statement->accept( *visitor );
1028 }
1029 }
1030
[55d6e8de]1031 void CodeGenerator::postvisit( WithStmt * with ) {
1032 if ( ! genC ) {
1033 output << "with ( ";
1034 genCommaList( with->exprs.begin(), with->exprs.end() );
1035 output << " ) ";
1036 }
1037 with->stmt->accept( *visitor );
1038 }
[daf1af8]1039
[9857e8d]1040 void CodeGenerator::postvisit( WhileStmt * whileStmt ) {
[321a2481]1041 if ( whileStmt->get_isDoWhile() ) {
[6c4ff37]1042 output << "do" ;
[321a2481]1043 } else {
[6c4ff37]1044 output << "while (" ;
[9857e8d]1045 whileStmt->get_condition()->accept( *visitor );
[6c4ff37]1046 output << ")";
[51587aa]1047 } // if
[2b6c1e0]1048 output << " ";
[51587aa]1049
[2b6c1e0]1050 output << CodeGenerator::printLabels( whileStmt->get_body()->get_labels() );
[9857e8d]1051 whileStmt->get_body()->accept( *visitor );
[51587aa]1052
[cda48b6]1053 output << indent;
[51587aa]1054
1055 if ( whileStmt->get_isDoWhile() ) {
[6c4ff37]1056 output << " while (" ;
[9857e8d]1057 whileStmt->get_condition()->accept( *visitor );
[6c4ff37]1058 output << ");";
[51587aa]1059 } // if
1060 }
1061
[9857e8d]1062 void CodeGenerator::postvisit( ForStmt * forStmt ) {
[8e9cbb2]1063 // initialization is always hoisted, so don't bother doing anything with that
[145f1fc]1064 output << "for (;";
[51587aa]1065
[321a2481]1066 if ( forStmt->get_condition() != 0 ) {
[9857e8d]1067 forStmt->get_condition()->accept( *visitor );
[3778cb2]1068 } // if
[6c4ff37]1069 output << ";";
[51587aa]1070
[321a2481]1071 if ( forStmt->get_increment() != 0 ) {
1072 // cast the top-level expression to void to reduce gcc warnings.
1073 Expression * expr = new CastExpr( forStmt->get_increment() );
[9857e8d]1074 expr->accept( *visitor );
[3778cb2]1075 } // if
[2b6c1e0]1076 output << ") ";
[51587aa]1077
1078 if ( forStmt->get_body() != 0 ) {
[2b6c1e0]1079 output << CodeGenerator::printLabels( forStmt->get_body()->get_labels() );
[9857e8d]1080 forStmt->get_body()->accept( *visitor );
[51587aa]1081 } // if
1082 }
1083
[9857e8d]1084 void CodeGenerator::postvisit( __attribute__((unused)) NullStmt * nullStmt ) {
[cda48b6]1085 //output << indent << CodeGenerator::printLabels( nullStmt->get_labels() );
[6c4ff37]1086 output << "/* null statement */ ;";
[51587aa]1087 }
1088
[9857e8d]1089 void CodeGenerator::postvisit( DeclStmt * declStmt ) {
1090 declStmt->get_decl()->accept( *visitor );
[71f4e4f]1091
[51587aa]1092 if ( doSemicolon( declStmt->get_decl() ) ) {
[6c4ff37]1093 output << ";";
[51587aa]1094 } // if
1095 }
1096
[9857e8d]1097 void CodeGenerator::postvisit( ImplicitCtorDtorStmt * stmt ) {
1098 assertf( ! genC, "ImplicitCtorDtorStmts should not reach code generation." );
1099 stmt->callStmt->accept( *visitor );
1100 }
1101
[dd020c0]1102 void CodeGenerator::handleStorageClass( DeclarationWithType * decl ) {
[fb04321]1103 if ( decl->get_storageClasses().any() ) {
[6e8bd43]1104 decl->get_storageClasses().print( output );
[a7c90d4]1105 } // if
[dd020c0]1106 } // CodeGenerator::handleStorageClass
[9facf3b]1107
1108 std::string genName( DeclarationWithType * decl ) {
1109 CodeGen::OperatorInfo opInfo;
1110 if ( operatorLookup( decl->get_name(), opInfo ) ) {
1111 return opInfo.outputName;
1112 } else {
1113 return decl->get_name();
1114 } // if
1115 }
[51b73452]1116} // namespace CodeGen
[51587aa]1117
[50377a4]1118
1119unsigned Indenter::tabsize = 2;
1120
[e149f77]1121std::ostream & operator<<( std::ostream & out, const BaseSyntaxNode * node ) {
1122 if ( node ) {
1123 node->print( out );
1124 } else {
1125 out << "nullptr";
1126 }
1127 return out;
1128}
1129
[51587aa]1130// Local Variables: //
1131// tab-width: 4 //
1132// mode: c++ //
1133// compile-command: "make install" //
1134// End: //
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