source: src/CodeGen/CodeGenerator.cc@ 7c782af

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 resolv-new with_gc
Last change on this file since 7c782af was 44b4114, checked in by Rob Schluntz <rschlunt@…>, 8 years ago

Add DeletedExpr node for use of deleted identifiers
  • Property mode set to 100644
File size: 33.9 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/SemanticError.h" // for SemanticError
21#include "Common/UniqueName.h" // for UniqueName
22#include "Common/utility.h" // for CodeLocation, toString
23#include "GenType.h" // for genType
24#include "InitTweak/InitTweak.h" // for getPointerBase
25#include "OperatorTable.h" // for OperatorInfo, operatorLookup
26#include "Parser/LinkageSpec.h" // for Spec, Intrinsic
27#include "SynTree/Attribute.h" // for Attribute
28#include "SynTree/BaseSyntaxNode.h" // for BaseSyntaxNode
29#include "SynTree/Constant.h" // for Constant
30#include "SynTree/Declaration.h" // for DeclarationWithType, TypeDecl
31#include "SynTree/Expression.h" // for Expression, UntypedExpr, Applica...
32#include "SynTree/Initializer.h" // for Initializer, ListInit, Designation
33#include "SynTree/Label.h" // for Label, operator<<
34#include "SynTree/Statement.h" // for Statement, AsmStmt, BranchStmt
35#include "SynTree/Type.h" // for Type, Type::StorageClasses, Func...
[10a7775]36
[51b73452]37using namespace std;
38
39namespace CodeGen {
[6c4ff37]40 int CodeGenerator::tabsize = 4;
[51587aa]41
[145f1fc]42 // the kinds of statements that would ideally be followed by whitespace
[2b6c1e0]43 bool wantSpacing( Statement * stmt) {
44 return dynamic_cast< IfStmt * >( stmt ) || dynamic_cast< CompoundStmt * >( stmt ) ||
[08061589]45 dynamic_cast< WhileStmt * >( stmt ) || dynamic_cast< ForStmt * >( stmt ) || dynamic_cast< SwitchStmt *>( stmt );
[2b6c1e0]46 }
47
[8688ce1]48 void CodeGenerator::extension( Expression * expr ) {
[8e9cbb2]49 if ( expr->get_extension() ) {
50 output << "__extension__ ";
51 } // if
52 } // extension
53
[8688ce1]54 void CodeGenerator::extension( Declaration * decl ) {
[8e9cbb2]55 if ( decl->get_extension() ) {
56 output << "__extension__ ";
57 } // if
58 } // extension
59
[58dd019]60 void CodeGenerator::asmName( DeclarationWithType * decl ) {
[e612146c]61 if ( ConstantExpr * asmName = dynamic_cast<ConstantExpr *>(decl->get_asmName()) ) {
[58dd019]62 output << " asm ( " << asmName->get_constant()->get_value() << " )";
63 } // if
64 } // extension
65
[888cbe4]66 CodeGenerator::LabelPrinter & CodeGenerator::LabelPrinter::operator()( std::list< Label > & l ) {
67 labels = &l;
68 return *this;
69 }
70
[8688ce1]71 ostream & operator<<( ostream & output, CodeGenerator::LabelPrinter & printLabels ) {
[888cbe4]72 std::list< Label > & labs = *printLabels.labels;
73 // l.unique(); // assumes a sorted list. Why not use set? Does order matter?
74 for ( Label & l : labs ) {
75 output << l.get_name() + ": ";
76 printLabels.cg.genAttributes( l.get_attributes() );
[8688ce1]77 } // for
[888cbe4]78 return output;
79 }
80
[d22e90f]81 /* Using updateLocation at the beginning of a node and endl
[8bafacc]82 * within a node should become the method of formating.
83 */
84 void CodeGenerator::updateLocation( CodeLocation const & to ) {
[d22e90f]85 // skip if linemarks shouldn't appear or if codelocation is unset
86 if ( !lineMarks || to.isUnset() ) return;
87
88 if ( currentLocation.followedBy( to, 0 ) ) {
[8bafacc]89 return;
90 } else if ( currentLocation.followedBy( to, 1 ) ) {
91 output << "\n" << indent;
[d48e529]92 currentLocation.first_line += 1;
[8bafacc]93 } else if ( currentLocation.followedBy( to, 2 ) ) {
94 output << "\n\n" << indent;
[d48e529]95 currentLocation.first_line += 2;
[8bafacc]96 } else {
[d48e529]97 output << "\n# " << to.first_line << " \"" << to.filename
[8bafacc]98 << "\"\n" << indent;
99 currentLocation = to;
100 }
101 output << std::flush;
102 }
[c850687]103
[8bafacc]104 void CodeGenerator::updateLocation( BaseSyntaxNode const * to ) {
105 updateLocation( to->location );
[c850687]106 }
107
[d22e90f]108 // replace endl
109 ostream & CodeGenerator::LineEnder::operator()( ostream & os ) const {
110 // if ( !cg.lineMarks ) {
111 // os << "\n" << cg.indent << std::flush;
112 // }
113 os << "\n" << std::flush;
114 cg.currentLocation.first_line++;
115 // os << "/* did endl; current loc is: " << cg.currentLocation.first_line << "*/";
116 return os;
[c850687]117 }
118
[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 ) {}
[cda48b6]120
[486341f]121 string CodeGenerator::mangleName( DeclarationWithType * decl ) {
[35b1bf4]122 if ( pretty ) return decl->get_name();
[51587aa]123 if ( decl->get_mangleName() != "" ) {
[f326f99]124 // need to incorporate scope level in order to differentiate names for destructors
125 return decl->get_scopedMangleName();
[51587aa]126 } else {
127 return decl->get_name();
128 } // if
129 }
[94b4364]130
[44a81853]131 void CodeGenerator::genAttributes( list< Attribute * > & attributes ) {
132 if ( attributes.empty() ) return;
133 output << "__attribute__ ((";
134 for ( list< Attribute * >::iterator attr( attributes.begin() );; ) {
135 output << (*attr)->get_name();
136 if ( ! (*attr)->get_parameters().empty() ) {
137 output << "(";
138 genCommaList( (*attr)->get_parameters().begin(), (*attr)->get_parameters().end() );
139 output << ")";
140 } // if
141 if ( ++attr == attributes.end() ) break;
142 output << ","; // separator
143 } // for
144 output << ")) ";
145 } // CodeGenerator::genAttributes
[7baed7d]146
[9857e8d]147 // *** BaseSyntaxNode
[d22e90f]148 void CodeGenerator::previsit( BaseSyntaxNode * node ) {
[9857e8d]149 // turn off automatic recursion for all nodes, to allow each visitor to
150 // precisely control the order in which its children are visited.
151 visit_children = false;
[d22e90f]152 updateLocation( node );
[9857e8d]153 }
154
155 // *** BaseSyntaxNode
156 void CodeGenerator::postvisit( BaseSyntaxNode * node ) {
157 std::stringstream ss;
158 node->print( ss );
159 assertf( false, "Unhandled node reached in CodeGenerator: %s", ss.str().c_str() );
160 }
[7baed7d]161
[4810867]162 // *** Declarations
[9857e8d]163 void CodeGenerator::postvisit( FunctionDecl * functionDecl ) {
[8e9cbb2]164 extension( functionDecl );
[7baed7d]165 genAttributes( functionDecl->get_attributes() );
166
[51587aa]167 handleStorageClass( functionDecl );
[6e8bd43]168 functionDecl->get_funcSpec().print( output );
[dd020c0]169
[e39241b]170 output << genType( functionDecl->get_functionType(), mangleName( functionDecl ), pretty, genC );
[51587aa]171
[58dd019]172 asmName( functionDecl );
173
[51587aa]174 if ( functionDecl->get_statements() ) {
[9857e8d]175 functionDecl->get_statements()->accept( *visitor );
[51587aa]176 } // if
177 }
178
[9857e8d]179 void CodeGenerator::postvisit( ObjectDecl * objectDecl ) {
[e39241b]180 if (objectDecl->get_name().empty() && genC ) {
181 // only generate an anonymous name when generating C code, otherwise it clutters the output too much
[d9c8a59]182 static UniqueName name = { "__anonymous_object" };
183 objectDecl->set_name( name.newName() );
184 }
185
[8e9cbb2]186 extension( objectDecl );
[f9cebb5]187 genAttributes( objectDecl->get_attributes() );
188
[51587aa]189 handleStorageClass( objectDecl );
[e39241b]190 output << genType( objectDecl->get_type(), mangleName( objectDecl ), pretty, genC );
[71f4e4f]191
[58dd019]192 asmName( objectDecl );
193
[51587aa]194 if ( objectDecl->get_init() ) {
[6c4ff37]195 output << " = ";
[9857e8d]196 objectDecl->get_init()->accept( *visitor );
[51587aa]197 } // if
[3778cb2]198
[51587aa]199 if ( objectDecl->get_bitfieldWidth() ) {
[6c4ff37]200 output << ":";
[9857e8d]201 objectDecl->get_bitfieldWidth()->accept( *visitor );
[51587aa]202 } // if
203 }
204
[5f642e38]205 void CodeGenerator::handleAggregate( AggregateDecl * aggDecl, const std::string & kind ) {
[c0aa336]206 genAttributes( aggDecl->get_attributes() );
[35b1bf4]207
[e39241b]208 if( ! aggDecl->get_parameters().empty() && ! genC ) {
209 // assertf( ! genC, "Aggregate type parameters should not reach code generation." );
210 output << "forall(";
211 genCommaList( aggDecl->get_parameters().begin(), aggDecl->get_parameters().end() );
212 output << ")" << endl;
[e6cee92]213 output << indent;
[e39241b]214 }
215
[a984e65]216 output << kind << aggDecl->get_name();
[71f4e4f]217
[2c57025]218 if ( aggDecl->has_body() ) {
219 std::list< Declaration * > & memb = aggDecl->get_members();
[94b4364]220 output << " {" << endl;
[51587aa]221
[f7cb0bc]222 ++indent;
[3778cb2]223 for ( std::list< Declaration* >::iterator i = memb.begin(); i != memb.end(); i++ ) {
[87e08e24]224 output << indent;
[9857e8d]225 (*i)->accept( *visitor );
[6c4ff37]226 output << ";" << endl;
[3778cb2]227 } // for
[51587aa]228
[f7cb0bc]229 --indent;
[51587aa]230
[cda48b6]231 output << indent << "}";
[17cd4eb]232 } // if
[51587aa]233 }
[17cd4eb]234
[9857e8d]235 void CodeGenerator::postvisit( StructDecl * structDecl ) {
[8e9cbb2]236 extension( structDecl );
[5f642e38]237 handleAggregate( structDecl, "struct " );
[51587aa]238 }
[17cd4eb]239
[9857e8d]240 void CodeGenerator::postvisit( UnionDecl * unionDecl ) {
[8e9cbb2]241 extension( unionDecl );
[5f642e38]242 handleAggregate( unionDecl, "union " );
[51587aa]243 }
[71f4e4f]244
[9857e8d]245 void CodeGenerator::postvisit( EnumDecl * enumDecl ) {
[8e9cbb2]246 extension( enumDecl );
[6c4ff37]247 output << "enum ";
[c0aa336]248 genAttributes( enumDecl->get_attributes() );
[51587aa]249
[a984e65]250 output << enumDecl->get_name();
[71f4e4f]251
[8e9cbb2]252 std::list< Declaration* > &memb = enumDecl->get_members();
[51587aa]253
254 if ( ! memb.empty() ) {
[cda48b6]255 output << " {" << endl;
[51587aa]256
[f7cb0bc]257 ++indent;
[51587aa]258 for ( std::list< Declaration* >::iterator i = memb.begin(); i != memb.end(); i++) {
[8688ce1]259 ObjectDecl * obj = dynamic_cast< ObjectDecl* >( *i );
[51587aa]260 assert( obj );
[87e08e24]261 output << indent << mangleName( obj );
[51587aa]262 if ( obj->get_init() ) {
[6c4ff37]263 output << " = ";
[9857e8d]264 obj->get_init()->accept( *visitor );
[51587aa]265 } // if
[6c4ff37]266 output << "," << endl;
[51587aa]267 } // for
268
[f7cb0bc]269 --indent;
[51587aa]270
[cda48b6]271 output << indent << "}";
[51587aa]272 } // if
273 }
[71f4e4f]274
[9857e8d]275 void CodeGenerator::postvisit( TraitDecl * traitDecl ) {
[a0c7dc36]276 assertf( ! genC, "TraitDecls should not reach code generation." );
[a984e65]277 extension( traitDecl );
278 handleAggregate( traitDecl, "trait " );
279 }
[71f4e4f]280
[9857e8d]281 void CodeGenerator::postvisit( TypedefDecl * typeDecl ) {
[e39241b]282 assertf( ! genC, "Typedefs are removed and substituted in earlier passes." );
283 output << "typedef ";
284 output << genType( typeDecl->get_base(), typeDecl->get_name(), pretty, genC ) << endl;
[51587aa]285 }
[71f4e4f]286
[9857e8d]287 void CodeGenerator::postvisit( TypeDecl * typeDecl ) {
[a0c7dc36]288 assertf( ! genC, "TypeDecls should not reach code generation." );
[ab4bff5]289 output << typeDecl->genTypeString() << " " << typeDecl->name;
[f0ecf9b]290 if ( typeDecl->sized ) {
[ab4bff5]291 output << " | sized(" << typeDecl->name << ")";
[a0c7dc36]292 }
[ab4bff5]293 if ( ! typeDecl->assertions.empty() ) {
[a0c7dc36]294 output << " | { ";
[ab4bff5]295 for ( DeclarationWithType * assert : typeDecl->assertions ) {
296 assert->accept( *visitor );
297 output << "; ";
298 }
[a0c7dc36]299 output << " }";
[e39241b]300 }
[51587aa]301 }
302
[9857e8d]303 void CodeGenerator::postvisit( Designation * designation ) {
[e4d829b]304 std::list< Expression * > designators = designation->get_designators();
[e45215c]305 if ( designators.size() == 0 ) return;
[e4d829b]306 for ( Expression * des : designators ) {
[62423350]307 if ( dynamic_cast< NameExpr * >( des ) || dynamic_cast< VariableExpr * >( des ) ) {
308 // if expression is a NameExpr or VariableExpr, then initializing aggregate member
309 output << ".";
[9857e8d]310 des->accept( *visitor );
[e4d829b]311 } else {
[62423350]312 // otherwise, it has to be a ConstantExpr or CastExpr, initializing array eleemnt
313 output << "[";
[9857e8d]314 des->accept( *visitor );
[62423350]315 output << "]";
[3778cb2]316 } // if
317 } // for
[e45215c]318 output << " = ";
319 }
320
[9857e8d]321 void CodeGenerator::postvisit( SingleInit * init ) {
322 init->get_value()->accept( *visitor );
[51587aa]323 }
324
[9857e8d]325 void CodeGenerator::postvisit( ListInit * init ) {
[e4d829b]326 auto initBegin = init->begin();
327 auto initEnd = init->end();
328 auto desigBegin = init->get_designations().begin();
329 auto desigEnd = init->get_designations().end();
330
[6c4ff37]331 output << "{ ";
[e4d829b]332 for ( ; initBegin != initEnd && desigBegin != desigEnd; ) {
[9857e8d]333 (*desigBegin)->accept( *visitor );
334 (*initBegin)->accept( *visitor );
[e4d829b]335 ++initBegin, ++desigBegin;
336 if ( initBegin != initEnd ) {
337 output << ", ";
338 }
339 }
[6c4ff37]340 output << " }";
[e4d829b]341 assertf( initBegin == initEnd && desigBegin == desigEnd, "Initializers and designators not the same length. %s", toString( init ).c_str() );
[51587aa]342 }
343
[d22e90f]344 void CodeGenerator::postvisit( ConstructorInit * init ){
[e39241b]345 assertf( ! genC, "ConstructorInit nodes should not reach code generation." );
[e6cee92]346 // pseudo-output for constructor/destructor pairs
[d22e90f]347 output << "<ctorinit>{" << endl << ++indent << "ctor: ";
[9857e8d]348 maybeAccept( init->get_ctor(), *visitor );
[d22e90f]349 output << ", " << endl << indent << "dtor: ";
[9857e8d]350 maybeAccept( init->get_dtor(), *visitor );
[d22e90f]351 output << endl << --indent << "}";
[fc638d2]352 }
353
[9857e8d]354 void CodeGenerator::postvisit( Constant * constant ) {
[6c4ff37]355 output << constant->get_value() ;
[51587aa]356 }
357
[4810867]358 // *** Expressions
[9857e8d]359 void CodeGenerator::postvisit( ApplicationExpr * applicationExpr ) {
[e04ef3a]360 extension( applicationExpr );
[8688ce1]361 if ( VariableExpr * varExpr = dynamic_cast< VariableExpr* >( applicationExpr->get_function() ) ) {
[51587aa]362 OperatorInfo opInfo;
363 if ( varExpr->get_var()->get_linkage() == LinkageSpec::Intrinsic && operatorLookup( varExpr->get_var()->get_name(), opInfo ) ) {
364 std::list< Expression* >::iterator arg = applicationExpr->get_args().begin();
365 switch ( opInfo.type ) {
366 case OT_INDEX:
367 assert( applicationExpr->get_args().size() == 2 );
[9857e8d]368 (*arg++)->accept( *visitor );
[6c4ff37]369 output << "[";
[9857e8d]370 (*arg)->accept( *visitor );
[6c4ff37]371 output << "]";
[51587aa]372 break;
[71f4e4f]373
[51587aa]374 case OT_CALL:
[356189a]375 // there are no intrinsic definitions of the function call operator
[51587aa]376 assert( false );
377 break;
[71f4e4f]378
[f1e012b]379 case OT_CTOR:
[c2ce2350]380 case OT_DTOR:
[356189a]381 if ( applicationExpr->get_args().size() == 1 ) {
[8e9cbb2]382 // the expression fed into a single parameter constructor or destructor may contain side
383 // effects, so must still output this expression
[64071c2]384 output << "(";
[9857e8d]385 (*arg++)->accept( *visitor );
[64071c2]386 output << ") /* " << opInfo.inputName << " */";
[356189a]387 } else if ( applicationExpr->get_args().size() == 2 ) {
[c2ce2350]388 // intrinsic two parameter constructors are essentially bitwise assignment
[356189a]389 output << "(";
[9857e8d]390 (*arg++)->accept( *visitor );
[356189a]391 output << opInfo.symbol;
[9857e8d]392 (*arg)->accept( *visitor );
[c2ce2350]393 output << ") /* " << opInfo.inputName << " */";
[356189a]394 } else {
[c2ce2350]395 // no constructors with 0 or more than 2 parameters
[356189a]396 assert( false );
[8688ce1]397 } // if
[356189a]398 break;
[f1e012b]399
[51587aa]400 case OT_PREFIX:
401 case OT_PREFIXASSIGN:
402 assert( applicationExpr->get_args().size() == 1 );
[6c4ff37]403 output << "(";
404 output << opInfo.symbol;
[9857e8d]405 (*arg)->accept( *visitor );
[6c4ff37]406 output << ")";
[51587aa]407 break;
[71f4e4f]408
[51587aa]409 case OT_POSTFIX:
410 case OT_POSTFIXASSIGN:
411 assert( applicationExpr->get_args().size() == 1 );
[9857e8d]412 (*arg)->accept( *visitor );
[6c4ff37]413 output << opInfo.symbol;
[51587aa]414 break;
415
[f1e012b]416
[51587aa]417 case OT_INFIX:
418 case OT_INFIXASSIGN:
419 assert( applicationExpr->get_args().size() == 2 );
[6c4ff37]420 output << "(";
[9857e8d]421 (*arg++)->accept( *visitor );
[6c4ff37]422 output << opInfo.symbol;
[9857e8d]423 (*arg)->accept( *visitor );
[6c4ff37]424 output << ")";
[51587aa]425 break;
[71f4e4f]426
[51587aa]427 case OT_CONSTANT:
[721f17a]428 case OT_LABELADDRESS:
429 // there are no intrinsic definitions of 0/1 or label addresses as functions
[51587aa]430 assert( false );
[3778cb2]431 } // switch
[17cd4eb]432 } else {
[9857e8d]433 varExpr->accept( *visitor );
[6c4ff37]434 output << "(";
[51587aa]435 genCommaList( applicationExpr->get_args().begin(), applicationExpr->get_args().end() );
[6c4ff37]436 output << ")";
[17cd4eb]437 } // if
[51587aa]438 } else {
[9857e8d]439 applicationExpr->get_function()->accept( *visitor );
[6c4ff37]440 output << "(";
[51587aa]441 genCommaList( applicationExpr->get_args().begin(), applicationExpr->get_args().end() );
[6c4ff37]442 output << ")";
[51587aa]443 } // if
444 }
[71f4e4f]445
[9857e8d]446 void CodeGenerator::postvisit( UntypedExpr * untypedExpr ) {
[e04ef3a]447 extension( untypedExpr );
[22bc276]448 if ( NameExpr * nameExpr = dynamic_cast< NameExpr* >( untypedExpr->function ) ) {
[51587aa]449 OperatorInfo opInfo;
[22bc276]450 if ( operatorLookup( nameExpr->name, opInfo ) ) {
451 std::list< Expression* >::iterator arg = untypedExpr->args.begin();
[51587aa]452 switch ( opInfo.type ) {
453 case OT_INDEX:
[22bc276]454 assert( untypedExpr->args.size() == 2 );
[9857e8d]455 (*arg++)->accept( *visitor );
[6c4ff37]456 output << "[";
[9857e8d]457 (*arg)->accept( *visitor );
[6c4ff37]458 output << "]";
[51587aa]459 break;
[71f4e4f]460
[51587aa]461 case OT_CALL:
[f1e012b]462 assert( false );
463
[c2ce2350]464 case OT_CTOR:
465 case OT_DTOR:
[22bc276]466 if ( untypedExpr->args.size() == 1 ) {
[8e9cbb2]467 // the expression fed into a single parameter constructor or destructor may contain side
468 // effects, so must still output this expression
[64071c2]469 output << "(";
[9857e8d]470 (*arg++)->accept( *visitor );
[64071c2]471 output << ") /* " << opInfo.inputName << " */";
[c2ce2350]472 } else if ( untypedExpr->get_args().size() == 2 ) {
473 // intrinsic two parameter constructors are essentially bitwise assignment
474 output << "(";
[9857e8d]475 (*arg++)->accept( *visitor );
[c2ce2350]476 output << opInfo.symbol;
[9857e8d]477 (*arg)->accept( *visitor );
[c2ce2350]478 output << ") /* " << opInfo.inputName << " */";
479 } else {
480 // no constructors with 0 or more than 2 parameters
[4e8949f]481 assertf( ! genC, "UntypedExpr constructor/destructor with 0 or more than 2 parameters." );
482 output << "(";
483 (*arg++)->accept( *visitor );
484 output << opInfo.symbol << "{ ";
[22bc276]485 genCommaList( arg, untypedExpr->args.end() );
[4e8949f]486 output << "}) /* " << opInfo.inputName << " */";
[3778cb2]487 } // if
[51587aa]488 break;
[71f4e4f]489
[51587aa]490 case OT_PREFIX:
491 case OT_PREFIXASSIGN:
[de62360d]492 case OT_LABELADDRESS:
[22bc276]493 assert( untypedExpr->args.size() == 1 );
[6c4ff37]494 output << "(";
495 output << opInfo.symbol;
[9857e8d]496 (*arg)->accept( *visitor );
[6c4ff37]497 output << ")";
[51587aa]498 break;
[71f4e4f]499
[51587aa]500 case OT_POSTFIX:
501 case OT_POSTFIXASSIGN:
[22bc276]502 assert( untypedExpr->args.size() == 1 );
[9857e8d]503 (*arg)->accept( *visitor );
[6c4ff37]504 output << opInfo.symbol;
[51587aa]505 break;
[71f4e4f]506
[51587aa]507 case OT_INFIX:
508 case OT_INFIXASSIGN:
[22bc276]509 assert( untypedExpr->args.size() == 2 );
[6c4ff37]510 output << "(";
[9857e8d]511 (*arg++)->accept( *visitor );
[6c4ff37]512 output << opInfo.symbol;
[9857e8d]513 (*arg)->accept( *visitor );
[6c4ff37]514 output << ")";
[51587aa]515 break;
[71f4e4f]516
[51587aa]517 case OT_CONSTANT:
518 // there are no intrinsic definitions of 0 or 1 as functions
519 assert( false );
[3778cb2]520 } // switch
[51587aa]521 } else {
[22bc276]522 // builtin routines
523 nameExpr->accept( *visitor );
524 output << "(";
525 genCommaList( untypedExpr->args.begin(), untypedExpr->args.end() );
526 output << ")";
[51587aa]527 } // if
528 } else {
[22bc276]529 untypedExpr->function->accept( *visitor );
[6c4ff37]530 output << "(";
[22bc276]531 genCommaList( untypedExpr->args.begin(), untypedExpr->args.end() );
[6c4ff37]532 output << ")";
[51587aa]533 } // if
534 }
[71f4e4f]535
[9857e8d]536 void CodeGenerator::postvisit( RangeExpr * rangeExpr ) {
[22bc276]537 rangeExpr->low->accept( *visitor );
[064e3ff]538 output << " ... ";
[22bc276]539 rangeExpr->high->accept( *visitor );
[064e3ff]540 }
541
[9857e8d]542 void CodeGenerator::postvisit( NameExpr * nameExpr ) {
[e04ef3a]543 extension( nameExpr );
[51587aa]544 OperatorInfo opInfo;
[5ea7a22]545 if ( operatorLookup( nameExpr->name, opInfo ) ) {
546 if ( opInfo.type == OT_CONSTANT ) {
547 output << opInfo.symbol;
548 } else {
549 output << opInfo.outputName;
550 }
[51587aa]551 } else {
[6c4ff37]552 output << nameExpr->get_name();
[51587aa]553 } // if
554 }
[71f4e4f]555
[9857e8d]556 void CodeGenerator::postvisit( AddressExpr * addressExpr ) {
[e04ef3a]557 extension( addressExpr );
[6c4ff37]558 output << "(&";
[9857e8d]559 addressExpr->arg->accept( *visitor );
[6c4ff37]560 output << ")";
[51587aa]561 }
562
[9857e8d]563 void CodeGenerator::postvisit( LabelAddressExpr *addressExpr ) {
[5809461]564 extension( addressExpr );
565 output << "(&&" << addressExpr->arg << ")";
566 }
567
[9857e8d]568 void CodeGenerator::postvisit( CastExpr * castExpr ) {
[e04ef3a]569 extension( castExpr );
[803deb1]570 output << "(";
[906e24d]571 if ( castExpr->get_result()->isVoid() ) {
[803deb1]572 output << "(void)" ;
[d104b02]573 } else {
574 // at least one result type of cast.
575 // Note: previously, lvalue casts were skipped. Since it's now impossible for the user to write
576 // an lvalue cast, this has been taken out.
[803deb1]577 output << "(";
[e39241b]578 output << genType( castExpr->get_result(), "", pretty, genC );
[71f4e4f]579 output << ")";
[3778cb2]580 } // if
[9857e8d]581 castExpr->get_arg()->accept( *visitor );
[803deb1]582 output << ")";
[51587aa]583 }
[71f4e4f]584
[9857e8d]585 void CodeGenerator::postvisit( VirtualCastExpr * castExpr ) {
[a5f0529]586 assertf( ! genC, "VirtualCastExpr should not reach code generation." );
587 extension( castExpr );
588 output << "(virtual ";
[9857e8d]589 castExpr->get_arg()->accept( *visitor );
[a5f0529]590 output << ")";
591 }
592
[9857e8d]593 void CodeGenerator::postvisit( UntypedMemberExpr * memberExpr ) {
[e39241b]594 assertf( ! genC, "UntypedMemberExpr should not reach code generation." );
595 extension( memberExpr );
[9857e8d]596 memberExpr->get_aggregate()->accept( *visitor );
[5f642e38]597 output << ".";
[9857e8d]598 memberExpr->get_member()->accept( *visitor );
[51587aa]599 }
[71f4e4f]600
[9857e8d]601 void CodeGenerator::postvisit( MemberExpr * memberExpr ) {
[e04ef3a]602 extension( memberExpr );
[9857e8d]603 memberExpr->get_aggregate()->accept( *visitor );
[6c4ff37]604 output << "." << mangleName( memberExpr->get_member() );
[51587aa]605 }
[71f4e4f]606
[9857e8d]607 void CodeGenerator::postvisit( VariableExpr * variableExpr ) {
[e04ef3a]608 extension( variableExpr );
[51587aa]609 OperatorInfo opInfo;
610 if ( variableExpr->get_var()->get_linkage() == LinkageSpec::Intrinsic && operatorLookup( variableExpr->get_var()->get_name(), opInfo ) && opInfo.type == OT_CONSTANT ) {
[6c4ff37]611 output << opInfo.symbol;
[51587aa]612 } else {
[6c4ff37]613 output << mangleName( variableExpr->get_var() );
[51587aa]614 } // if
615 }
[71f4e4f]616
[9857e8d]617 void CodeGenerator::postvisit( ConstantExpr * constantExpr ) {
[51587aa]618 assert( constantExpr->get_constant() );
[e04ef3a]619 extension( constantExpr );
[9857e8d]620 constantExpr->get_constant()->accept( *visitor );
[51587aa]621 }
[71f4e4f]622
[9857e8d]623 void CodeGenerator::postvisit( SizeofExpr * sizeofExpr ) {
[e04ef3a]624 extension( sizeofExpr );
[6c4ff37]625 output << "sizeof(";
[51587aa]626 if ( sizeofExpr->get_isType() ) {
[e39241b]627 output << genType( sizeofExpr->get_type(), "", pretty, genC );
[51587aa]628 } else {
[9857e8d]629 sizeofExpr->get_expr()->accept( *visitor );
[51587aa]630 } // if
[6c4ff37]631 output << ")";
[51587aa]632 }
[47534159]633
[9857e8d]634 void CodeGenerator::postvisit( AlignofExpr * alignofExpr ) {
[47534159]635 // use GCC extension to avoid bumping std to C11
[8e9cbb2]636 extension( alignofExpr );
[47534159]637 output << "__alignof__(";
[25a054f]638 if ( alignofExpr->get_isType() ) {
[e39241b]639 output << genType( alignofExpr->get_type(), "", pretty, genC );
[47534159]640 } else {
[9857e8d]641 alignofExpr->get_expr()->accept( *visitor );
[47534159]642 } // if
643 output << ")";
644 }
[71f4e4f]645
[9857e8d]646 void CodeGenerator::postvisit( UntypedOffsetofExpr * offsetofExpr ) {
[e39241b]647 assertf( ! genC, "UntypedOffsetofExpr should not reach code generation." );
648 output << "offsetof(";
649 output << genType( offsetofExpr->get_type(), "", pretty, genC );
650 output << ", " << offsetofExpr->get_member();
651 output << ")";
[2a4b088]652 }
653
[9857e8d]654 void CodeGenerator::postvisit( OffsetofExpr * offsetofExpr ) {
[25a054f]655 // use GCC builtin
656 output << "__builtin_offsetof(";
[e39241b]657 output << genType( offsetofExpr->get_type(), "", pretty, genC );
[e551c69]658 output << ", " << mangleName( offsetofExpr->get_member() );
[25a054f]659 output << ")";
660 }
[d63eeb0]661
[9857e8d]662 void CodeGenerator::postvisit( OffsetPackExpr * offsetPackExpr ) {
[e39241b]663 assertf( ! genC, "OffsetPackExpr should not reach code generation." );
664 output << "__CFA_offsetpack(" << genType( offsetPackExpr->get_type(), "", pretty, genC ) << ")";
[afc1045]665 }
[70a06f6]666
[9857e8d]667 void CodeGenerator::postvisit( LogicalExpr * logicalExpr ) {
[e04ef3a]668 extension( logicalExpr );
[6c4ff37]669 output << "(";
[9857e8d]670 logicalExpr->get_arg1()->accept( *visitor );
[51587aa]671 if ( logicalExpr->get_isAnd() ) {
[6c4ff37]672 output << " && ";
[51587aa]673 } else {
[6c4ff37]674 output << " || ";
[51587aa]675 } // if
[9857e8d]676 logicalExpr->get_arg2()->accept( *visitor );
[6c4ff37]677 output << ")";
[51587aa]678 }
[71f4e4f]679
[9857e8d]680 void CodeGenerator::postvisit( ConditionalExpr * conditionalExpr ) {
[e04ef3a]681 extension( conditionalExpr );
[6c4ff37]682 output << "(";
[9857e8d]683 conditionalExpr->get_arg1()->accept( *visitor );
[6c4ff37]684 output << " ? ";
[9857e8d]685 conditionalExpr->get_arg2()->accept( *visitor );
[6c4ff37]686 output << " : ";
[9857e8d]687 conditionalExpr->get_arg3()->accept( *visitor );
[6c4ff37]688 output << ")";
[51587aa]689 }
[71f4e4f]690
[9857e8d]691 void CodeGenerator::postvisit( CommaExpr * commaExpr ) {
[e04ef3a]692 extension( commaExpr );
[6c4ff37]693 output << "(";
[8a6cf7e]694 if ( genC ) {
695 // arg1 of a CommaExpr is never used, so it can be safely cast to void to reduce gcc warnings.
696 commaExpr->set_arg1( new CastExpr( commaExpr->get_arg1() ) );
697 }
[9857e8d]698 commaExpr->get_arg1()->accept( *visitor );
[6c4ff37]699 output << " , ";
[9857e8d]700 commaExpr->get_arg2()->accept( *visitor );
[6c4ff37]701 output << ")";
[51587aa]702 }
[71f4e4f]703
[9857e8d]704 void CodeGenerator::postvisit( TupleAssignExpr * tupleExpr ) {
[d104b02]705 assertf( ! genC, "TupleAssignExpr should not reach code generation." );
[9857e8d]706 tupleExpr->stmtExpr->accept( *visitor );
[d104b02]707 }
708
[9857e8d]709 void CodeGenerator::postvisit( UntypedTupleExpr * tupleExpr ) {
[e39241b]710 assertf( ! genC, "UntypedTupleExpr should not reach code generation." );
[f975c65]711 extension( tupleExpr );
[e39241b]712 output << "[";
713 genCommaList( tupleExpr->get_exprs().begin(), tupleExpr->get_exprs().end() );
714 output << "]";
715 }
[907eccb]716
[9857e8d]717 void CodeGenerator::postvisit( TupleExpr * tupleExpr ) {
[e39241b]718 assertf( ! genC, "TupleExpr should not reach code generation." );
[f975c65]719 extension( tupleExpr );
[e39241b]720 output << "[";
721 genCommaList( tupleExpr->get_exprs().begin(), tupleExpr->get_exprs().end() );
722 output << "]";
723 }
[71f4e4f]724
[9857e8d]725 void CodeGenerator::postvisit( TupleIndexExpr * tupleExpr ) {
[f975c65]726 assertf( ! genC, "TupleIndexExpr should not reach code generation." );
727 extension( tupleExpr );
[9857e8d]728 tupleExpr->get_tuple()->accept( *visitor );
[f975c65]729 output << "." << tupleExpr->get_index();
730 }
731
[9857e8d]732 void CodeGenerator::postvisit( TypeExpr * typeExpr ) {
[e4d829b]733 // if ( genC ) std::cerr << "typeexpr still exists: " << typeExpr << std::endl;
734 // assertf( ! genC, "TypeExpr should not reach code generation." );
735 if ( ! genC ) {
736 output<< genType( typeExpr->get_type(), "", pretty, genC );
737 }
[e39241b]738 }
[2b6c1e0]739
[9857e8d]740 void CodeGenerator::postvisit( AsmExpr * asmExpr ) {
[7f5566b]741 if ( asmExpr->get_inout() ) {
742 output << "[ ";
[9857e8d]743 asmExpr->get_inout()->accept( *visitor );
[7f5566b]744 output << " ] ";
745 } // if
[9857e8d]746 asmExpr->get_constraint()->accept( *visitor );
[7f5566b]747 output << " ( ";
[9857e8d]748 asmExpr->get_operand()->accept( *visitor );
[7f5566b]749 output << " )";
750 }
751
[9857e8d]752 void CodeGenerator::postvisit( CompoundLiteralExpr *compLitExpr ) {
[fbcde64]753 assert( compLitExpr->get_result() && dynamic_cast< ListInit * > ( compLitExpr->get_initializer() ) );
[e39241b]754 output << "(" << genType( compLitExpr->get_result(), "", pretty, genC ) << ")";
[9857e8d]755 compLitExpr->get_initializer()->accept( *visitor );
[3c13c03]756 }
757
[9857e8d]758 void CodeGenerator::postvisit( UniqueExpr * unqExpr ) {
[d104b02]759 assertf( ! genC, "Unique expressions should not reach code generation." );
760 output << "unq<" << unqExpr->get_id() << ">{ ";
[9857e8d]761 unqExpr->get_expr()->accept( *visitor );
[d104b02]762 output << " }";
763 }
764
[9857e8d]765 void CodeGenerator::postvisit( StmtExpr * stmtExpr ) {
[44b4114]766 std::list< Statement * > & stmts = stmtExpr->statements->kids;
[d22e90f]767 output << "({" << endl;
[f7cb0bc]768 ++indent;
[3c13c03]769 unsigned int numStmts = stmts.size();
770 unsigned int i = 0;
771 for ( Statement * stmt : stmts ) {
[058f549]772 output << indent << printLabels( stmt->get_labels() );
[3c13c03]773 if ( i+1 == numStmts ) {
774 // last statement in a statement expression needs to be handled specially -
775 // cannot cast to void, otherwise the expression statement has no value
776 if ( ExprStmt * exprStmt = dynamic_cast< ExprStmt * >( stmt ) ) {
[44b4114]777 exprStmt->expr->accept( *visitor );
[3c13c03]778 output << ";" << endl;
779 ++i;
780 break;
781 }
782 }
[9857e8d]783 stmt->accept( *visitor );
[3c13c03]784 output << endl;
785 if ( wantSpacing( stmt ) ) {
786 output << endl;
787 } // if
788 ++i;
789 }
[f7cb0bc]790 --indent;
[3c13c03]791 output << indent << "})";
[6eb8948]792 }
793
[4e8949f]794 void CodeGenerator::postvisit( ConstructorExpr * expr ) {
795 assertf( ! genC, "Unique expressions should not reach code generation." );
796 expr->callExpr->accept( *visitor );
797 }
798
[44b4114]799 void CodeGenerator::postvisit( DeletedExpr * expr ) {
800 assertf( ! genC, "Deleted expressions should not reach code generation." );
801 expr->expr->accept( *visitor );
802 }
803
[4810867]804 // *** Statements
[9857e8d]805 void CodeGenerator::postvisit( CompoundStmt * compoundStmt ) {
[51587aa]806 std::list<Statement*> ks = compoundStmt->get_kids();
[2b6c1e0]807 output << "{" << endl;
[51587aa]808
[f7cb0bc]809 ++indent;
[51587aa]810
[7f5566b]811 for ( std::list<Statement *>::iterator i = ks.begin(); i != ks.end(); i++ ) {
[cda48b6]812 output << indent << printLabels( (*i)->get_labels() );
[9857e8d]813 (*i)->accept( *visitor );
[2b6c1e0]814
[6c4ff37]815 output << endl;
[2b6c1e0]816 if ( wantSpacing( *i ) ) {
817 output << endl;
[3778cb2]818 } // if
[8688ce1]819 } // for
[f7cb0bc]820 --indent;
[51587aa]821
[cda48b6]822 output << indent << "}";
[51587aa]823 }
824
[9857e8d]825 void CodeGenerator::postvisit( ExprStmt * exprStmt ) {
[6c4ff37]826 assert( exprStmt );
[262f085f]827 if ( genC ) {
828 // cast the top-level expression to void to reduce gcc warnings.
[8a6cf7e]829 exprStmt->set_expr( new CastExpr( exprStmt->get_expr() ) );
[262f085f]830 }
[9857e8d]831 exprStmt->get_expr()->accept( *visitor );
[321a2481]832 output << ";";
[51587aa]833 }
834
[9857e8d]835 void CodeGenerator::postvisit( AsmStmt * asmStmt ) {
[7f5566b]836 output << "asm ";
837 if ( asmStmt->get_voltile() ) output << "volatile ";
838 if ( ! asmStmt->get_gotolabels().empty() ) output << "goto ";
839 output << "( ";
[9857e8d]840 if ( asmStmt->get_instruction() ) asmStmt->get_instruction()->accept( *visitor );
[7f5566b]841 output << " : ";
842 genCommaList( asmStmt->get_output().begin(), asmStmt->get_output().end() );
843 output << " : ";
844 genCommaList( asmStmt->get_input().begin(), asmStmt->get_input().end() );
845 output << " : ";
846 genCommaList( asmStmt->get_clobber().begin(), asmStmt->get_clobber().end() );
847 if ( ! asmStmt->get_gotolabels().empty() ) {
848 output << " : ";
849 for ( std::list<Label>::iterator begin = asmStmt->get_gotolabels().begin();; ) {
850 output << *begin++;
851 if ( begin == asmStmt->get_gotolabels().end() ) break;
852 output << ", ";
853 } // for
854 } // if
855 output << " );" ;
856 }
857
[9857e8d]858 void CodeGenerator::postvisit( AsmDecl * asmDecl ) {
[e994912]859 output << "asm ";
860 AsmStmt * asmStmt = asmDecl->get_stmt();
861 output << "( ";
[9857e8d]862 if ( asmStmt->get_instruction() ) asmStmt->get_instruction()->accept( *visitor );
[e994912]863 output << " )" ;
864 }
865
[9857e8d]866 void CodeGenerator::postvisit( IfStmt * ifStmt ) {
[7f5566b]867 output << "if ( ";
[9857e8d]868 ifStmt->get_condition()->accept( *visitor );
[7f5566b]869 output << " ) ";
[51587aa]870
[9857e8d]871 ifStmt->get_thenPart()->accept( *visitor );
[51587aa]872
873 if ( ifStmt->get_elsePart() != 0) {
[2b6c1e0]874 output << " else ";
[9857e8d]875 ifStmt->get_elsePart()->accept( *visitor );
[51587aa]876 } // if
877 }
878
[9857e8d]879 void CodeGenerator::postvisit( SwitchStmt * switchStmt ) {
[7f5566b]880 output << "switch ( " ;
[9857e8d]881 switchStmt->get_condition()->accept( *visitor );
[7f5566b]882 output << " ) ";
[71f4e4f]883
[d22e90f]884 output << "{" << endl;
[f7cb0bc]885 ++indent;
[9857e8d]886 acceptAll( switchStmt->get_statements(), *visitor );
[f7cb0bc]887 --indent;
[cda48b6]888 output << indent << "}";
[51587aa]889 }
890
[9857e8d]891 void CodeGenerator::postvisit( CaseStmt * caseStmt ) {
[8bafacc]892 updateLocation( caseStmt );
[1dcd9554]893 output << indent;
[eb3261f]894 if ( caseStmt->isDefault()) {
[2b6c1e0]895 output << "default";
[eb3261f]896 } else {
[2b6c1e0]897 output << "case ";
[9857e8d]898 caseStmt->get_condition()->accept( *visitor );
[17cd4eb]899 } // if
[d22e90f]900 output << ":" << endl;
[71f4e4f]901
[51587aa]902 std::list<Statement *> sts = caseStmt->get_statements();
903
[f7cb0bc]904 ++indent;
[51587aa]905 for ( std::list<Statement *>::iterator i = sts.begin(); i != sts.end(); i++) {
[cda48b6]906 output << indent << printLabels( (*i)->get_labels() ) ;
[9857e8d]907 (*i)->accept( *visitor );
[6c4ff37]908 output << endl;
[3778cb2]909 } // for
[f7cb0bc]910 --indent;
[51587aa]911 }
912
[9857e8d]913 void CodeGenerator::postvisit( BranchStmt * branchStmt ) {
[51587aa]914 switch ( branchStmt->get_type()) {
915 case BranchStmt::Goto:
916 if ( ! branchStmt->get_target().empty() )
[6c4ff37]917 output << "goto " << branchStmt->get_target();
[71f4e4f]918 else {
[51587aa]919 if ( branchStmt->get_computedTarget() != 0 ) {
[6c4ff37]920 output << "goto *";
[9857e8d]921 branchStmt->get_computedTarget()->accept( *visitor );
[51587aa]922 } // if
923 } // if
924 break;
925 case BranchStmt::Break:
[6c4ff37]926 output << "break";
[51587aa]927 break;
928 case BranchStmt::Continue:
[6c4ff37]929 output << "continue";
[51587aa]930 break;
[3778cb2]931 } // switch
[2b6c1e0]932 output << ";";
[51587aa]933 }
934
[9857e8d]935 void CodeGenerator::postvisit( ReturnStmt * returnStmt ) {
[6c4ff37]936 output << "return ";
[9857e8d]937 maybeAccept( returnStmt->get_expr(), *visitor );
[6c4ff37]938 output << ";";
[51587aa]939 }
940
[9857e8d]941 void CodeGenerator::postvisit( ThrowStmt * throwStmt ) {
[daf1af8]942 assertf( ! genC, "Throw statements should not reach code generation." );
943
944 output << ((throwStmt->get_kind() == ThrowStmt::Terminate) ?
945 "throw" : "throwResume");
946 if (throwStmt->get_expr()) {
947 output << " ";
[9857e8d]948 throwStmt->get_expr()->accept( *visitor );
[daf1af8]949 }
950 if (throwStmt->get_target()) {
951 output << " _At ";
[9857e8d]952 throwStmt->get_target()->accept( *visitor );
[daf1af8]953 }
954 output << ";";
955 }
[e4ea10b7]956 void CodeGenerator::postvisit( CatchStmt * stmt ) {
957 assertf( ! genC, "Catch statements should not reach code generation." );
958
959 output << ((stmt->get_kind() == CatchStmt::Terminate) ?
960 "catch" : "catchResume");
961 output << "( ";
962 stmt->decl->accept( *visitor );
963 output << " ) ";
964
965 if( stmt->cond ) {
966 output << "if/when(?) (";
967 stmt->cond->accept( *visitor );
968 output << ") ";
969 }
970 stmt->body->accept( *visitor );
971 }
972
973 void CodeGenerator::postvisit( WaitForStmt * stmt ) {
974 assertf( ! genC, "Waitfor statements should not reach code generation." );
975
976 bool first = true;
977 for( auto & clause : stmt->clauses ) {
978 if(first) { output << "or "; first = false; }
979 if( clause.condition ) {
980 output << "when(";
981 stmt->timeout.condition->accept( *visitor );
982 output << ") ";
983 }
984 output << "waitfor(";
985 clause.target.function->accept( *visitor );
986 for( Expression * expr : clause.target.arguments ) {
987 output << ",";
988 expr->accept( *visitor );
989 }
990 output << ") ";
991 clause.statement->accept( *visitor );
992 }
993
994 if( stmt->timeout.statement ) {
995 output << "or ";
996 if( stmt->timeout.condition ) {
997 output << "when(";
998 stmt->timeout.condition->accept( *visitor );
999 output << ") ";
1000 }
1001 output << "timeout(";
1002 stmt->timeout.time->accept( *visitor );
1003 output << ") ";
1004 stmt->timeout.statement->accept( *visitor );
1005 }
1006
1007 if( stmt->orelse.statement ) {
1008 output << "or ";
1009 if( stmt->orelse.condition ) {
1010 output << "when(";
1011 stmt->orelse.condition->accept( *visitor );
1012 output << ")";
1013 }
1014 output << "else ";
1015 stmt->orelse.statement->accept( *visitor );
1016 }
1017 }
1018
[55d6e8de]1019 void CodeGenerator::postvisit( WithStmt * with ) {
1020 if ( ! genC ) {
1021 output << "with ( ";
1022 genCommaList( with->exprs.begin(), with->exprs.end() );
1023 output << " ) ";
1024 }
1025 with->stmt->accept( *visitor );
1026 }
[daf1af8]1027
[9857e8d]1028 void CodeGenerator::postvisit( WhileStmt * whileStmt ) {
[321a2481]1029 if ( whileStmt->get_isDoWhile() ) {
[6c4ff37]1030 output << "do" ;
[321a2481]1031 } else {
[6c4ff37]1032 output << "while (" ;
[9857e8d]1033 whileStmt->get_condition()->accept( *visitor );
[6c4ff37]1034 output << ")";
[51587aa]1035 } // if
[2b6c1e0]1036 output << " ";
[51587aa]1037
[2b6c1e0]1038 output << CodeGenerator::printLabels( whileStmt->get_body()->get_labels() );
[9857e8d]1039 whileStmt->get_body()->accept( *visitor );
[51587aa]1040
[cda48b6]1041 output << indent;
[51587aa]1042
1043 if ( whileStmt->get_isDoWhile() ) {
[6c4ff37]1044 output << " while (" ;
[9857e8d]1045 whileStmt->get_condition()->accept( *visitor );
[6c4ff37]1046 output << ");";
[51587aa]1047 } // if
1048 }
1049
[9857e8d]1050 void CodeGenerator::postvisit( ForStmt * forStmt ) {
[8e9cbb2]1051 // initialization is always hoisted, so don't bother doing anything with that
[145f1fc]1052 output << "for (;";
[51587aa]1053
[321a2481]1054 if ( forStmt->get_condition() != 0 ) {
[9857e8d]1055 forStmt->get_condition()->accept( *visitor );
[3778cb2]1056 } // if
[6c4ff37]1057 output << ";";
[51587aa]1058
[321a2481]1059 if ( forStmt->get_increment() != 0 ) {
1060 // cast the top-level expression to void to reduce gcc warnings.
1061 Expression * expr = new CastExpr( forStmt->get_increment() );
[9857e8d]1062 expr->accept( *visitor );
[3778cb2]1063 } // if
[2b6c1e0]1064 output << ") ";
[51587aa]1065
1066 if ( forStmt->get_body() != 0 ) {
[2b6c1e0]1067 output << CodeGenerator::printLabels( forStmt->get_body()->get_labels() );
[9857e8d]1068 forStmt->get_body()->accept( *visitor );
[51587aa]1069 } // if
1070 }
1071
[9857e8d]1072 void CodeGenerator::postvisit( __attribute__((unused)) NullStmt * nullStmt ) {
[cda48b6]1073 //output << indent << CodeGenerator::printLabels( nullStmt->get_labels() );
[6c4ff37]1074 output << "/* null statement */ ;";
[51587aa]1075 }
1076
[9857e8d]1077 void CodeGenerator::postvisit( DeclStmt * declStmt ) {
1078 declStmt->get_decl()->accept( *visitor );
[71f4e4f]1079
[51587aa]1080 if ( doSemicolon( declStmt->get_decl() ) ) {
[6c4ff37]1081 output << ";";
[51587aa]1082 } // if
1083 }
1084
[9857e8d]1085 void CodeGenerator::postvisit( ImplicitCtorDtorStmt * stmt ) {
1086 assertf( ! genC, "ImplicitCtorDtorStmts should not reach code generation." );
1087 stmt->callStmt->accept( *visitor );
1088 }
1089
[dd020c0]1090 void CodeGenerator::handleStorageClass( DeclarationWithType * decl ) {
[fb04321]1091 if ( decl->get_storageClasses().any() ) {
[6e8bd43]1092 decl->get_storageClasses().print( output );
[a7c90d4]1093 } // if
[dd020c0]1094 } // CodeGenerator::handleStorageClass
[9facf3b]1095
1096 std::string genName( DeclarationWithType * decl ) {
1097 CodeGen::OperatorInfo opInfo;
1098 if ( operatorLookup( decl->get_name(), opInfo ) ) {
1099 return opInfo.outputName;
1100 } else {
1101 return decl->get_name();
1102 } // if
1103 }
[51b73452]1104} // namespace CodeGen
[51587aa]1105
[50377a4]1106
1107unsigned Indenter::tabsize = 2;
1108
[e149f77]1109std::ostream & operator<<( std::ostream & out, const BaseSyntaxNode * node ) {
1110 if ( node ) {
1111 node->print( out );
1112 } else {
1113 out << "nullptr";
1114 }
1115 return out;
1116}
1117
[51587aa]1118// Local Variables: //
1119// tab-width: 4 //
1120// mode: c++ //
1121// compile-command: "make install" //
1122// End: //
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