1 //===--- StmtPrinter.cpp - Printing implementation for Stmt ASTs ----------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file implements the Stmt::dumpPretty/Stmt::printPretty methods, which
11 // pretty print the AST back out to C code.
13 //===----------------------------------------------------------------------===//
15 #include "clang/AST/StmtVisitor.h"
16 #include "clang/AST/DeclCXX.h"
17 #include "clang/AST/DeclObjC.h"
18 #include "clang/AST/DeclTemplate.h"
19 #include "clang/AST/PrettyPrinter.h"
20 #include "llvm/Support/Format.h"
21 #include "clang/AST/Expr.h"
22 #include "clang/AST/ExprCXX.h"
23 using namespace clang;
25 //===----------------------------------------------------------------------===//
26 // StmtPrinter Visitor
27 //===----------------------------------------------------------------------===//
30 class StmtPrinter : public StmtVisitor<StmtPrinter> {
31 llvm::raw_ostream &OS;
34 clang::PrinterHelper* Helper;
35 PrintingPolicy Policy;
38 StmtPrinter(llvm::raw_ostream &os, ASTContext &C, PrinterHelper* helper,
39 const PrintingPolicy &Policy,
40 unsigned Indentation = 0)
41 : OS(os), Context(C), IndentLevel(Indentation), Helper(helper),
44 void PrintStmt(Stmt *S) {
45 PrintStmt(S, Policy.Indentation);
48 void PrintStmt(Stmt *S, int SubIndent) {
49 IndentLevel += SubIndent;
50 if (S && isa<Expr>(S)) {
51 // If this is an expr used in a stmt context, indent and newline it.
58 Indent() << "<<<NULL STATEMENT>>>\n";
60 IndentLevel -= SubIndent;
63 void PrintRawCompoundStmt(CompoundStmt *S);
64 void PrintRawDecl(Decl *D);
65 void PrintRawDeclStmt(DeclStmt *S);
66 void PrintRawIfStmt(IfStmt *If);
67 void PrintRawCXXCatchStmt(CXXCatchStmt *Catch);
68 void PrintCallArgs(CallExpr *E);
69 void PrintRawSEHExceptHandler(SEHExceptStmt *S);
70 void PrintRawSEHFinallyStmt(SEHFinallyStmt *S);
72 void PrintExpr(Expr *E) {
79 llvm::raw_ostream &Indent(int Delta = 0) {
80 for (int i = 0, e = IndentLevel+Delta; i < e; ++i)
86 if (Helper && Helper->handledStmt(S,OS))
88 else StmtVisitor<StmtPrinter>::Visit(S);
91 void VisitStmt(Stmt *Node) LLVM_ATTRIBUTE_UNUSED {
92 Indent() << "<<unknown stmt type>>\n";
94 void VisitExpr(Expr *Node) LLVM_ATTRIBUTE_UNUSED {
95 OS << "<<unknown expr type>>";
97 void VisitCXXNamedCastExpr(CXXNamedCastExpr *Node);
99 #define ABSTRACT_STMT(CLASS)
100 #define STMT(CLASS, PARENT) \
101 void Visit##CLASS(CLASS *Node);
102 #include "clang/AST/StmtNodes.inc"
106 //===----------------------------------------------------------------------===//
107 // Stmt printing methods.
108 //===----------------------------------------------------------------------===//
110 /// PrintRawCompoundStmt - Print a compound stmt without indenting the {, and
111 /// with no newline after the }.
112 void StmtPrinter::PrintRawCompoundStmt(CompoundStmt *Node) {
114 for (CompoundStmt::body_iterator I = Node->body_begin(), E = Node->body_end();
121 void StmtPrinter::PrintRawDecl(Decl *D) {
122 D->print(OS, Policy, IndentLevel);
125 void StmtPrinter::PrintRawDeclStmt(DeclStmt *S) {
126 DeclStmt::decl_iterator Begin = S->decl_begin(), End = S->decl_end();
127 llvm::SmallVector<Decl*, 2> Decls;
128 for ( ; Begin != End; ++Begin)
129 Decls.push_back(*Begin);
131 Decl::printGroup(Decls.data(), Decls.size(), OS, Policy, IndentLevel);
134 void StmtPrinter::VisitNullStmt(NullStmt *Node) {
138 void StmtPrinter::VisitDeclStmt(DeclStmt *Node) {
140 PrintRawDeclStmt(Node);
144 void StmtPrinter::VisitCompoundStmt(CompoundStmt *Node) {
146 PrintRawCompoundStmt(Node);
150 void StmtPrinter::VisitCaseStmt(CaseStmt *Node) {
151 Indent(-1) << "case ";
152 PrintExpr(Node->getLHS());
153 if (Node->getRHS()) {
155 PrintExpr(Node->getRHS());
159 PrintStmt(Node->getSubStmt(), 0);
162 void StmtPrinter::VisitDefaultStmt(DefaultStmt *Node) {
163 Indent(-1) << "default:\n";
164 PrintStmt(Node->getSubStmt(), 0);
167 void StmtPrinter::VisitLabelStmt(LabelStmt *Node) {
168 Indent(-1) << Node->getName() << ":\n";
169 PrintStmt(Node->getSubStmt(), 0);
172 void StmtPrinter::PrintRawIfStmt(IfStmt *If) {
174 PrintExpr(If->getCond());
177 if (CompoundStmt *CS = dyn_cast<CompoundStmt>(If->getThen())) {
179 PrintRawCompoundStmt(CS);
180 OS << (If->getElse() ? ' ' : '\n');
183 PrintStmt(If->getThen());
184 if (If->getElse()) Indent();
187 if (Stmt *Else = If->getElse()) {
190 if (CompoundStmt *CS = dyn_cast<CompoundStmt>(Else)) {
192 PrintRawCompoundStmt(CS);
194 } else if (IfStmt *ElseIf = dyn_cast<IfStmt>(Else)) {
196 PrintRawIfStmt(ElseIf);
199 PrintStmt(If->getElse());
204 void StmtPrinter::VisitIfStmt(IfStmt *If) {
209 void StmtPrinter::VisitSwitchStmt(SwitchStmt *Node) {
210 Indent() << "switch (";
211 PrintExpr(Node->getCond());
214 // Pretty print compoundstmt bodies (very common).
215 if (CompoundStmt *CS = dyn_cast<CompoundStmt>(Node->getBody())) {
217 PrintRawCompoundStmt(CS);
221 PrintStmt(Node->getBody());
225 void StmtPrinter::VisitWhileStmt(WhileStmt *Node) {
226 Indent() << "while (";
227 PrintExpr(Node->getCond());
229 PrintStmt(Node->getBody());
232 void StmtPrinter::VisitDoStmt(DoStmt *Node) {
234 if (CompoundStmt *CS = dyn_cast<CompoundStmt>(Node->getBody())) {
235 PrintRawCompoundStmt(CS);
239 PrintStmt(Node->getBody());
244 PrintExpr(Node->getCond());
248 void StmtPrinter::VisitForStmt(ForStmt *Node) {
250 if (Node->getInit()) {
251 if (DeclStmt *DS = dyn_cast<DeclStmt>(Node->getInit()))
252 PrintRawDeclStmt(DS);
254 PrintExpr(cast<Expr>(Node->getInit()));
257 if (Node->getCond()) {
259 PrintExpr(Node->getCond());
262 if (Node->getInc()) {
264 PrintExpr(Node->getInc());
268 if (CompoundStmt *CS = dyn_cast<CompoundStmt>(Node->getBody())) {
269 PrintRawCompoundStmt(CS);
273 PrintStmt(Node->getBody());
277 void StmtPrinter::VisitObjCForCollectionStmt(ObjCForCollectionStmt *Node) {
279 if (DeclStmt *DS = dyn_cast<DeclStmt>(Node->getElement()))
280 PrintRawDeclStmt(DS);
282 PrintExpr(cast<Expr>(Node->getElement()));
284 PrintExpr(Node->getCollection());
287 if (CompoundStmt *CS = dyn_cast<CompoundStmt>(Node->getBody())) {
288 PrintRawCompoundStmt(CS);
292 PrintStmt(Node->getBody());
296 void StmtPrinter::VisitCXXForRangeStmt(CXXForRangeStmt *Node) {
298 PrintingPolicy SubPolicy(Policy);
299 SubPolicy.SuppressInitializers = true;
300 Node->getLoopVariable()->print(OS, SubPolicy, IndentLevel);
302 PrintExpr(Node->getRangeInit());
304 PrintStmt(Node->getBody());
308 void StmtPrinter::VisitGotoStmt(GotoStmt *Node) {
309 Indent() << "goto " << Node->getLabel()->getName() << ";\n";
312 void StmtPrinter::VisitIndirectGotoStmt(IndirectGotoStmt *Node) {
313 Indent() << "goto *";
314 PrintExpr(Node->getTarget());
318 void StmtPrinter::VisitContinueStmt(ContinueStmt *Node) {
319 Indent() << "continue;\n";
322 void StmtPrinter::VisitBreakStmt(BreakStmt *Node) {
323 Indent() << "break;\n";
327 void StmtPrinter::VisitReturnStmt(ReturnStmt *Node) {
328 Indent() << "return";
329 if (Node->getRetValue()) {
331 PrintExpr(Node->getRetValue());
337 void StmtPrinter::VisitAsmStmt(AsmStmt *Node) {
340 if (Node->isVolatile())
344 VisitStringLiteral(Node->getAsmString());
347 if (Node->getNumOutputs() != 0 || Node->getNumInputs() != 0 ||
348 Node->getNumClobbers() != 0)
351 for (unsigned i = 0, e = Node->getNumOutputs(); i != e; ++i) {
355 if (!Node->getOutputName(i).empty()) {
357 OS << Node->getOutputName(i);
361 VisitStringLiteral(Node->getOutputConstraintLiteral(i));
363 Visit(Node->getOutputExpr(i));
367 if (Node->getNumInputs() != 0 || Node->getNumClobbers() != 0)
370 for (unsigned i = 0, e = Node->getNumInputs(); i != e; ++i) {
374 if (!Node->getInputName(i).empty()) {
376 OS << Node->getInputName(i);
380 VisitStringLiteral(Node->getInputConstraintLiteral(i));
382 Visit(Node->getInputExpr(i));
386 if (Node->getNumClobbers() != 0)
389 for (unsigned i = 0, e = Node->getNumClobbers(); i != e; ++i) {
393 VisitStringLiteral(Node->getClobber(i));
399 void StmtPrinter::VisitObjCAtTryStmt(ObjCAtTryStmt *Node) {
401 if (CompoundStmt *TS = dyn_cast<CompoundStmt>(Node->getTryBody())) {
402 PrintRawCompoundStmt(TS);
406 for (unsigned I = 0, N = Node->getNumCatchStmts(); I != N; ++I) {
407 ObjCAtCatchStmt *catchStmt = Node->getCatchStmt(I);
408 Indent() << "@catch(";
409 if (catchStmt->getCatchParamDecl()) {
410 if (Decl *DS = catchStmt->getCatchParamDecl())
414 if (CompoundStmt *CS = dyn_cast<CompoundStmt>(catchStmt->getCatchBody())) {
415 PrintRawCompoundStmt(CS);
420 if (ObjCAtFinallyStmt *FS = static_cast<ObjCAtFinallyStmt *>(
421 Node->getFinallyStmt())) {
422 Indent() << "@finally";
423 PrintRawCompoundStmt(dyn_cast<CompoundStmt>(FS->getFinallyBody()));
428 void StmtPrinter::VisitObjCAtFinallyStmt(ObjCAtFinallyStmt *Node) {
431 void StmtPrinter::VisitObjCAtCatchStmt (ObjCAtCatchStmt *Node) {
432 Indent() << "@catch (...) { /* todo */ } \n";
435 void StmtPrinter::VisitObjCAtThrowStmt(ObjCAtThrowStmt *Node) {
436 Indent() << "@throw";
437 if (Node->getThrowExpr()) {
439 PrintExpr(Node->getThrowExpr());
444 void StmtPrinter::VisitObjCAtSynchronizedStmt(ObjCAtSynchronizedStmt *Node) {
445 Indent() << "@synchronized (";
446 PrintExpr(Node->getSynchExpr());
448 PrintRawCompoundStmt(Node->getSynchBody());
452 void StmtPrinter::VisitObjCAutoreleasePoolStmt(ObjCAutoreleasePoolStmt *Node) {
453 Indent() << "@autoreleasepool";
454 PrintRawCompoundStmt(dyn_cast<CompoundStmt>(Node->getSubStmt()));
458 void StmtPrinter::PrintRawCXXCatchStmt(CXXCatchStmt *Node) {
460 if (Decl *ExDecl = Node->getExceptionDecl())
461 PrintRawDecl(ExDecl);
465 PrintRawCompoundStmt(cast<CompoundStmt>(Node->getHandlerBlock()));
468 void StmtPrinter::VisitCXXCatchStmt(CXXCatchStmt *Node) {
470 PrintRawCXXCatchStmt(Node);
474 void StmtPrinter::VisitCXXTryStmt(CXXTryStmt *Node) {
476 PrintRawCompoundStmt(Node->getTryBlock());
477 for (unsigned i = 0, e = Node->getNumHandlers(); i < e; ++i) {
479 PrintRawCXXCatchStmt(Node->getHandler(i));
484 void StmtPrinter::VisitSEHTryStmt(SEHTryStmt *Node) {
485 Indent() << (Node->getIsCXXTry() ? "try " : "__try ");
486 PrintRawCompoundStmt(Node->getTryBlock());
487 SEHExceptStmt *E = Node->getExceptHandler();
488 SEHFinallyStmt *F = Node->getFinallyHandler();
490 PrintRawSEHExceptHandler(E);
492 assert(F && "Must have a finally block...");
493 PrintRawSEHFinallyStmt(F);
498 void StmtPrinter::PrintRawSEHFinallyStmt(SEHFinallyStmt *Node) {
500 PrintRawCompoundStmt(Node->getBlock());
504 void StmtPrinter::PrintRawSEHExceptHandler(SEHExceptStmt *Node) {
506 VisitExpr(Node->getFilterExpr());
508 PrintRawCompoundStmt(Node->getBlock());
512 void StmtPrinter::VisitSEHExceptStmt(SEHExceptStmt *Node) {
514 PrintRawSEHExceptHandler(Node);
518 void StmtPrinter::VisitSEHFinallyStmt(SEHFinallyStmt *Node) {
520 PrintRawSEHFinallyStmt(Node);
524 //===----------------------------------------------------------------------===//
525 // Expr printing methods.
526 //===----------------------------------------------------------------------===//
528 void StmtPrinter::VisitDeclRefExpr(DeclRefExpr *Node) {
529 if (NestedNameSpecifier *Qualifier = Node->getQualifier())
530 Qualifier->print(OS, Policy);
531 OS << Node->getNameInfo();
532 if (Node->hasExplicitTemplateArgs())
533 OS << TemplateSpecializationType::PrintTemplateArgumentList(
534 Node->getTemplateArgs(),
535 Node->getNumTemplateArgs(),
539 void StmtPrinter::VisitDependentScopeDeclRefExpr(
540 DependentScopeDeclRefExpr *Node) {
541 if (NestedNameSpecifier *Qualifier = Node->getQualifier())
542 Qualifier->print(OS, Policy);
543 OS << Node->getNameInfo();
544 if (Node->hasExplicitTemplateArgs())
545 OS << TemplateSpecializationType::PrintTemplateArgumentList(
546 Node->getTemplateArgs(),
547 Node->getNumTemplateArgs(),
551 void StmtPrinter::VisitUnresolvedLookupExpr(UnresolvedLookupExpr *Node) {
552 if (Node->getQualifier())
553 Node->getQualifier()->print(OS, Policy);
554 OS << Node->getNameInfo();
555 if (Node->hasExplicitTemplateArgs())
556 OS << TemplateSpecializationType::PrintTemplateArgumentList(
557 Node->getTemplateArgs(),
558 Node->getNumTemplateArgs(),
562 void StmtPrinter::VisitObjCIvarRefExpr(ObjCIvarRefExpr *Node) {
563 if (Node->getBase()) {
564 PrintExpr(Node->getBase());
565 OS << (Node->isArrow() ? "->" : ".");
567 OS << Node->getDecl();
570 void StmtPrinter::VisitObjCPropertyRefExpr(ObjCPropertyRefExpr *Node) {
571 if (Node->isSuperReceiver())
573 else if (Node->getBase()) {
574 PrintExpr(Node->getBase());
578 if (Node->isImplicitProperty())
579 OS << Node->getImplicitPropertyGetter()->getSelector().getAsString();
581 OS << Node->getExplicitProperty()->getName();
584 void StmtPrinter::VisitPredefinedExpr(PredefinedExpr *Node) {
585 switch (Node->getIdentType()) {
587 assert(0 && "unknown case");
588 case PredefinedExpr::Func:
591 case PredefinedExpr::Function:
592 OS << "__FUNCTION__";
594 case PredefinedExpr::PrettyFunction:
595 OS << "__PRETTY_FUNCTION__";
600 void StmtPrinter::VisitCharacterLiteral(CharacterLiteral *Node) {
601 unsigned value = Node->getValue();
612 // TODO: K&R: the meaning of '\\a' is different in traditional C
618 // Nonstandard escape sequence.
638 if (value < 256 && isprint(value)) {
639 OS << "'" << (char)value << "'";
640 } else if (value < 256) {
641 OS << "'\\x" << llvm::format("%x", value) << "'";
643 // FIXME what to really do here?
649 void StmtPrinter::VisitIntegerLiteral(IntegerLiteral *Node) {
650 bool isSigned = Node->getType()->isSignedIntegerType();
651 OS << Node->getValue().toString(10, isSigned);
653 // Emit suffixes. Integer literals are always a builtin integer type.
654 switch (Node->getType()->getAs<BuiltinType>()->getKind()) {
655 default: assert(0 && "Unexpected type for integer literal!");
656 case BuiltinType::Int: break; // no suffix.
657 case BuiltinType::UInt: OS << 'U'; break;
658 case BuiltinType::Long: OS << 'L'; break;
659 case BuiltinType::ULong: OS << "UL"; break;
660 case BuiltinType::LongLong: OS << "LL"; break;
661 case BuiltinType::ULongLong: OS << "ULL"; break;
664 void StmtPrinter::VisitFloatingLiteral(FloatingLiteral *Node) {
665 // FIXME: print value more precisely.
666 OS << Node->getValueAsApproximateDouble();
669 void StmtPrinter::VisitImaginaryLiteral(ImaginaryLiteral *Node) {
670 PrintExpr(Node->getSubExpr());
674 void StmtPrinter::VisitStringLiteral(StringLiteral *Str) {
675 if (Str->isWide()) OS << 'L';
678 // FIXME: this doesn't print wstrings right.
679 llvm::StringRef StrData = Str->getString();
680 for (llvm::StringRef::iterator I = StrData.begin(), E = StrData.end();
682 unsigned char Char = *I;
688 else // Output anything hard as an octal escape.
690 << (char)('0'+ ((Char >> 6) & 7))
691 << (char)('0'+ ((Char >> 3) & 7))
692 << (char)('0'+ ((Char >> 0) & 7));
694 // Handle some common non-printable cases to make dumps prettier.
695 case '\\': OS << "\\\\"; break;
696 case '"': OS << "\\\""; break;
697 case '\n': OS << "\\n"; break;
698 case '\t': OS << "\\t"; break;
699 case '\a': OS << "\\a"; break;
700 case '\b': OS << "\\b"; break;
705 void StmtPrinter::VisitParenExpr(ParenExpr *Node) {
707 PrintExpr(Node->getSubExpr());
710 void StmtPrinter::VisitUnaryOperator(UnaryOperator *Node) {
711 if (!Node->isPostfix()) {
712 OS << UnaryOperator::getOpcodeStr(Node->getOpcode());
714 // Print a space if this is an "identifier operator" like __real, or if
715 // it might be concatenated incorrectly like '+'.
716 switch (Node->getOpcode()) {
725 if (isa<UnaryOperator>(Node->getSubExpr()))
730 PrintExpr(Node->getSubExpr());
732 if (Node->isPostfix())
733 OS << UnaryOperator::getOpcodeStr(Node->getOpcode());
736 void StmtPrinter::VisitOffsetOfExpr(OffsetOfExpr *Node) {
737 OS << "__builtin_offsetof(";
738 OS << Node->getTypeSourceInfo()->getType().getAsString(Policy) << ", ";
739 bool PrintedSomething = false;
740 for (unsigned i = 0, n = Node->getNumComponents(); i < n; ++i) {
741 OffsetOfExpr::OffsetOfNode ON = Node->getComponent(i);
742 if (ON.getKind() == OffsetOfExpr::OffsetOfNode::Array) {
745 PrintExpr(Node->getIndexExpr(ON.getArrayExprIndex()));
747 PrintedSomething = true;
751 // Skip implicit base indirections.
752 if (ON.getKind() == OffsetOfExpr::OffsetOfNode::Base)
755 // Field or identifier node.
756 IdentifierInfo *Id = ON.getFieldName();
760 if (PrintedSomething)
763 PrintedSomething = true;
769 void StmtPrinter::VisitUnaryExprOrTypeTraitExpr(UnaryExprOrTypeTraitExpr *Node){
770 switch(Node->getKind()) {
781 if (Node->isArgumentType())
782 OS << "(" << Node->getArgumentType().getAsString(Policy) << ")";
785 PrintExpr(Node->getArgumentExpr());
789 void StmtPrinter::VisitGenericSelectionExpr(GenericSelectionExpr *Node) {
791 PrintExpr(Node->getControllingExpr());
792 for (unsigned i = 0; i != Node->getNumAssocs(); ++i) {
794 QualType T = Node->getAssocType(i);
798 OS << T.getAsString(Policy);
800 PrintExpr(Node->getAssocExpr(i));
805 void StmtPrinter::VisitArraySubscriptExpr(ArraySubscriptExpr *Node) {
806 PrintExpr(Node->getLHS());
808 PrintExpr(Node->getRHS());
812 void StmtPrinter::PrintCallArgs(CallExpr *Call) {
813 for (unsigned i = 0, e = Call->getNumArgs(); i != e; ++i) {
814 if (isa<CXXDefaultArgExpr>(Call->getArg(i))) {
815 // Don't print any defaulted arguments
820 PrintExpr(Call->getArg(i));
824 void StmtPrinter::VisitCallExpr(CallExpr *Call) {
825 PrintExpr(Call->getCallee());
830 void StmtPrinter::VisitMemberExpr(MemberExpr *Node) {
831 // FIXME: Suppress printing implicit bases (like "this")
832 PrintExpr(Node->getBase());
833 if (FieldDecl *FD = dyn_cast<FieldDecl>(Node->getMemberDecl()))
834 if (FD->isAnonymousStructOrUnion())
836 OS << (Node->isArrow() ? "->" : ".");
837 if (NestedNameSpecifier *Qualifier = Node->getQualifier())
838 Qualifier->print(OS, Policy);
840 OS << Node->getMemberNameInfo();
842 if (Node->hasExplicitTemplateArgs())
843 OS << TemplateSpecializationType::PrintTemplateArgumentList(
844 Node->getTemplateArgs(),
845 Node->getNumTemplateArgs(),
848 void StmtPrinter::VisitObjCIsaExpr(ObjCIsaExpr *Node) {
849 PrintExpr(Node->getBase());
850 OS << (Node->isArrow() ? "->isa" : ".isa");
853 void StmtPrinter::VisitExtVectorElementExpr(ExtVectorElementExpr *Node) {
854 PrintExpr(Node->getBase());
856 OS << Node->getAccessor().getName();
858 void StmtPrinter::VisitCStyleCastExpr(CStyleCastExpr *Node) {
859 OS << "(" << Node->getType().getAsString(Policy) << ")";
860 PrintExpr(Node->getSubExpr());
862 void StmtPrinter::VisitCompoundLiteralExpr(CompoundLiteralExpr *Node) {
863 OS << "(" << Node->getType().getAsString(Policy) << ")";
864 PrintExpr(Node->getInitializer());
866 void StmtPrinter::VisitImplicitCastExpr(ImplicitCastExpr *Node) {
867 // No need to print anything, simply forward to the sub expression.
868 PrintExpr(Node->getSubExpr());
870 void StmtPrinter::VisitBinaryOperator(BinaryOperator *Node) {
871 PrintExpr(Node->getLHS());
872 OS << " " << BinaryOperator::getOpcodeStr(Node->getOpcode()) << " ";
873 PrintExpr(Node->getRHS());
875 void StmtPrinter::VisitCompoundAssignOperator(CompoundAssignOperator *Node) {
876 PrintExpr(Node->getLHS());
877 OS << " " << BinaryOperator::getOpcodeStr(Node->getOpcode()) << " ";
878 PrintExpr(Node->getRHS());
880 void StmtPrinter::VisitConditionalOperator(ConditionalOperator *Node) {
881 PrintExpr(Node->getCond());
883 PrintExpr(Node->getLHS());
885 PrintExpr(Node->getRHS());
891 StmtPrinter::VisitBinaryConditionalOperator(BinaryConditionalOperator *Node) {
892 PrintExpr(Node->getCommon());
894 PrintExpr(Node->getFalseExpr());
896 void StmtPrinter::VisitAddrLabelExpr(AddrLabelExpr *Node) {
897 OS << "&&" << Node->getLabel()->getName();
900 void StmtPrinter::VisitStmtExpr(StmtExpr *E) {
902 PrintRawCompoundStmt(E->getSubStmt());
906 void StmtPrinter::VisitChooseExpr(ChooseExpr *Node) {
907 OS << "__builtin_choose_expr(";
908 PrintExpr(Node->getCond());
910 PrintExpr(Node->getLHS());
912 PrintExpr(Node->getRHS());
916 void StmtPrinter::VisitGNUNullExpr(GNUNullExpr *) {
920 void StmtPrinter::VisitShuffleVectorExpr(ShuffleVectorExpr *Node) {
921 OS << "__builtin_shufflevector(";
922 for (unsigned i = 0, e = Node->getNumSubExprs(); i != e; ++i) {
924 PrintExpr(Node->getExpr(i));
929 void StmtPrinter::VisitInitListExpr(InitListExpr* Node) {
930 if (Node->getSyntacticForm()) {
931 Visit(Node->getSyntacticForm());
936 for (unsigned i = 0, e = Node->getNumInits(); i != e; ++i) {
938 if (Node->getInit(i))
939 PrintExpr(Node->getInit(i));
946 void StmtPrinter::VisitParenListExpr(ParenListExpr* Node) {
948 for (unsigned i = 0, e = Node->getNumExprs(); i != e; ++i) {
950 PrintExpr(Node->getExpr(i));
955 void StmtPrinter::VisitDesignatedInitExpr(DesignatedInitExpr *Node) {
956 for (DesignatedInitExpr::designators_iterator D = Node->designators_begin(),
957 DEnd = Node->designators_end();
959 if (D->isFieldDesignator()) {
960 if (D->getDotLoc().isInvalid())
961 OS << D->getFieldName()->getName() << ":";
963 OS << "." << D->getFieldName()->getName();
966 if (D->isArrayDesignator()) {
967 PrintExpr(Node->getArrayIndex(*D));
969 PrintExpr(Node->getArrayRangeStart(*D));
971 PrintExpr(Node->getArrayRangeEnd(*D));
978 PrintExpr(Node->getInit());
981 void StmtPrinter::VisitImplicitValueInitExpr(ImplicitValueInitExpr *Node) {
982 if (Policy.LangOpts.CPlusPlus)
983 OS << "/*implicit*/" << Node->getType().getAsString(Policy) << "()";
985 OS << "/*implicit*/(" << Node->getType().getAsString(Policy) << ")";
986 if (Node->getType()->isRecordType())
993 void StmtPrinter::VisitVAArgExpr(VAArgExpr *Node) {
994 OS << "__builtin_va_arg(";
995 PrintExpr(Node->getSubExpr());
997 OS << Node->getType().getAsString(Policy);
1002 void StmtPrinter::VisitCXXOperatorCallExpr(CXXOperatorCallExpr *Node) {
1003 const char *OpStrings[NUM_OVERLOADED_OPERATORS] = {
1005 #define OVERLOADED_OPERATOR(Name,Spelling,Token,Unary,Binary,MemberOnly) \
1007 #include "clang/Basic/OperatorKinds.def"
1010 OverloadedOperatorKind Kind = Node->getOperator();
1011 if (Kind == OO_PlusPlus || Kind == OO_MinusMinus) {
1012 if (Node->getNumArgs() == 1) {
1013 OS << OpStrings[Kind] << ' ';
1014 PrintExpr(Node->getArg(0));
1016 PrintExpr(Node->getArg(0));
1017 OS << ' ' << OpStrings[Kind];
1019 } else if (Kind == OO_Call) {
1020 PrintExpr(Node->getArg(0));
1022 for (unsigned ArgIdx = 1; ArgIdx < Node->getNumArgs(); ++ArgIdx) {
1025 if (!isa<CXXDefaultArgExpr>(Node->getArg(ArgIdx)))
1026 PrintExpr(Node->getArg(ArgIdx));
1029 } else if (Kind == OO_Subscript) {
1030 PrintExpr(Node->getArg(0));
1032 PrintExpr(Node->getArg(1));
1034 } else if (Node->getNumArgs() == 1) {
1035 OS << OpStrings[Kind] << ' ';
1036 PrintExpr(Node->getArg(0));
1037 } else if (Node->getNumArgs() == 2) {
1038 PrintExpr(Node->getArg(0));
1039 OS << ' ' << OpStrings[Kind] << ' ';
1040 PrintExpr(Node->getArg(1));
1042 assert(false && "unknown overloaded operator");
1046 void StmtPrinter::VisitCXXMemberCallExpr(CXXMemberCallExpr *Node) {
1047 VisitCallExpr(cast<CallExpr>(Node));
1050 void StmtPrinter::VisitCUDAKernelCallExpr(CUDAKernelCallExpr *Node) {
1051 PrintExpr(Node->getCallee());
1053 PrintCallArgs(Node->getConfig());
1055 PrintCallArgs(Node);
1059 void StmtPrinter::VisitCXXNamedCastExpr(CXXNamedCastExpr *Node) {
1060 OS << Node->getCastName() << '<';
1061 OS << Node->getTypeAsWritten().getAsString(Policy) << ">(";
1062 PrintExpr(Node->getSubExpr());
1066 void StmtPrinter::VisitCXXStaticCastExpr(CXXStaticCastExpr *Node) {
1067 VisitCXXNamedCastExpr(Node);
1070 void StmtPrinter::VisitCXXDynamicCastExpr(CXXDynamicCastExpr *Node) {
1071 VisitCXXNamedCastExpr(Node);
1074 void StmtPrinter::VisitCXXReinterpretCastExpr(CXXReinterpretCastExpr *Node) {
1075 VisitCXXNamedCastExpr(Node);
1078 void StmtPrinter::VisitCXXConstCastExpr(CXXConstCastExpr *Node) {
1079 VisitCXXNamedCastExpr(Node);
1082 void StmtPrinter::VisitCXXTypeidExpr(CXXTypeidExpr *Node) {
1084 if (Node->isTypeOperand()) {
1085 OS << Node->getTypeOperand().getAsString(Policy);
1087 PrintExpr(Node->getExprOperand());
1092 void StmtPrinter::VisitCXXUuidofExpr(CXXUuidofExpr *Node) {
1094 if (Node->isTypeOperand()) {
1095 OS << Node->getTypeOperand().getAsString(Policy);
1097 PrintExpr(Node->getExprOperand());
1102 void StmtPrinter::VisitCXXBoolLiteralExpr(CXXBoolLiteralExpr *Node) {
1103 OS << (Node->getValue() ? "true" : "false");
1106 void StmtPrinter::VisitCXXNullPtrLiteralExpr(CXXNullPtrLiteralExpr *Node) {
1110 void StmtPrinter::VisitCXXThisExpr(CXXThisExpr *Node) {
1114 void StmtPrinter::VisitCXXThrowExpr(CXXThrowExpr *Node) {
1115 if (Node->getSubExpr() == 0)
1119 PrintExpr(Node->getSubExpr());
1123 void StmtPrinter::VisitCXXDefaultArgExpr(CXXDefaultArgExpr *Node) {
1124 // Nothing to print: we picked up the default argument
1127 void StmtPrinter::VisitCXXFunctionalCastExpr(CXXFunctionalCastExpr *Node) {
1128 OS << Node->getType().getAsString(Policy);
1130 PrintExpr(Node->getSubExpr());
1134 void StmtPrinter::VisitCXXBindTemporaryExpr(CXXBindTemporaryExpr *Node) {
1135 PrintExpr(Node->getSubExpr());
1138 void StmtPrinter::VisitCXXTemporaryObjectExpr(CXXTemporaryObjectExpr *Node) {
1139 OS << Node->getType().getAsString(Policy);
1141 for (CXXTemporaryObjectExpr::arg_iterator Arg = Node->arg_begin(),
1142 ArgEnd = Node->arg_end();
1143 Arg != ArgEnd; ++Arg) {
1144 if (Arg != Node->arg_begin())
1151 void StmtPrinter::VisitCXXScalarValueInitExpr(CXXScalarValueInitExpr *Node) {
1152 if (TypeSourceInfo *TSInfo = Node->getTypeSourceInfo())
1153 OS << TSInfo->getType().getAsString(Policy) << "()";
1155 OS << Node->getType().getAsString(Policy) << "()";
1158 void StmtPrinter::VisitCXXNewExpr(CXXNewExpr *E) {
1159 if (E->isGlobalNew())
1162 unsigned NumPlace = E->getNumPlacementArgs();
1165 PrintExpr(E->getPlacementArg(0));
1166 for (unsigned i = 1; i < NumPlace; ++i) {
1168 PrintExpr(E->getPlacementArg(i));
1172 if (E->isParenTypeId())
1175 if (Expr *Size = E->getArraySize()) {
1176 llvm::raw_string_ostream s(TypeS);
1177 Size->printPretty(s, Context, Helper, Policy);
1179 TypeS = "[" + TypeS + "]";
1181 E->getAllocatedType().getAsStringInternal(TypeS, Policy);
1183 if (E->isParenTypeId())
1186 if (E->hasInitializer()) {
1188 unsigned NumCons = E->getNumConstructorArgs();
1190 PrintExpr(E->getConstructorArg(0));
1191 for (unsigned i = 1; i < NumCons; ++i) {
1193 PrintExpr(E->getConstructorArg(i));
1200 void StmtPrinter::VisitCXXDeleteExpr(CXXDeleteExpr *E) {
1201 if (E->isGlobalDelete())
1204 if (E->isArrayForm())
1206 PrintExpr(E->getArgument());
1209 void StmtPrinter::VisitCXXPseudoDestructorExpr(CXXPseudoDestructorExpr *E) {
1210 PrintExpr(E->getBase());
1215 if (E->getQualifier())
1216 E->getQualifier()->print(OS, Policy);
1219 if (IdentifierInfo *II = E->getDestroyedTypeIdentifier())
1220 OS << II->getName();
1222 E->getDestroyedType().getAsStringInternal(TypeS, Policy);
1226 void StmtPrinter::VisitCXXConstructExpr(CXXConstructExpr *E) {
1227 for (unsigned i = 0, e = E->getNumArgs(); i != e; ++i) {
1228 if (isa<CXXDefaultArgExpr>(E->getArg(i))) {
1229 // Don't print any defaulted arguments
1234 PrintExpr(E->getArg(i));
1238 void StmtPrinter::VisitExprWithCleanups(ExprWithCleanups *E) {
1239 // Just forward to the sub expression.
1240 PrintExpr(E->getSubExpr());
1244 StmtPrinter::VisitCXXUnresolvedConstructExpr(
1245 CXXUnresolvedConstructExpr *Node) {
1246 OS << Node->getTypeAsWritten().getAsString(Policy);
1248 for (CXXUnresolvedConstructExpr::arg_iterator Arg = Node->arg_begin(),
1249 ArgEnd = Node->arg_end();
1250 Arg != ArgEnd; ++Arg) {
1251 if (Arg != Node->arg_begin())
1258 void StmtPrinter::VisitCXXDependentScopeMemberExpr(
1259 CXXDependentScopeMemberExpr *Node) {
1260 if (!Node->isImplicitAccess()) {
1261 PrintExpr(Node->getBase());
1262 OS << (Node->isArrow() ? "->" : ".");
1264 if (NestedNameSpecifier *Qualifier = Node->getQualifier())
1265 Qualifier->print(OS, Policy);
1266 else if (Node->hasExplicitTemplateArgs())
1267 // FIXME: Track use of "template" keyword explicitly?
1270 OS << Node->getMemberNameInfo();
1272 if (Node->hasExplicitTemplateArgs()) {
1273 OS << TemplateSpecializationType::PrintTemplateArgumentList(
1274 Node->getTemplateArgs(),
1275 Node->getNumTemplateArgs(),
1280 void StmtPrinter::VisitUnresolvedMemberExpr(UnresolvedMemberExpr *Node) {
1281 if (!Node->isImplicitAccess()) {
1282 PrintExpr(Node->getBase());
1283 OS << (Node->isArrow() ? "->" : ".");
1285 if (NestedNameSpecifier *Qualifier = Node->getQualifier())
1286 Qualifier->print(OS, Policy);
1288 // FIXME: this might originally have been written with 'template'
1290 OS << Node->getMemberNameInfo();
1292 if (Node->hasExplicitTemplateArgs()) {
1293 OS << TemplateSpecializationType::PrintTemplateArgumentList(
1294 Node->getTemplateArgs(),
1295 Node->getNumTemplateArgs(),
1300 static const char *getTypeTraitName(UnaryTypeTrait UTT) {
1302 case UTT_HasNothrowAssign: return "__has_nothrow_assign";
1303 case UTT_HasNothrowConstructor: return "__has_nothrow_constructor";
1304 case UTT_HasNothrowCopy: return "__has_nothrow_copy";
1305 case UTT_HasTrivialAssign: return "__has_trivial_assign";
1306 case UTT_HasTrivialDefaultConstructor: return "__has_trivial_constructor";
1307 case UTT_HasTrivialCopy: return "__has_trivial_copy";
1308 case UTT_HasTrivialDestructor: return "__has_trivial_destructor";
1309 case UTT_HasVirtualDestructor: return "__has_virtual_destructor";
1310 case UTT_IsAbstract: return "__is_abstract";
1311 case UTT_IsArithmetic: return "__is_arithmetic";
1312 case UTT_IsArray: return "__is_array";
1313 case UTT_IsClass: return "__is_class";
1314 case UTT_IsCompleteType: return "__is_complete_type";
1315 case UTT_IsCompound: return "__is_compound";
1316 case UTT_IsConst: return "__is_const";
1317 case UTT_IsEmpty: return "__is_empty";
1318 case UTT_IsEnum: return "__is_enum";
1319 case UTT_IsFloatingPoint: return "__is_floating_point";
1320 case UTT_IsFunction: return "__is_function";
1321 case UTT_IsFundamental: return "__is_fundamental";
1322 case UTT_IsIntegral: return "__is_integral";
1323 case UTT_IsLiteral: return "__is_literal";
1324 case UTT_IsLvalueReference: return "__is_lvalue_reference";
1325 case UTT_IsMemberFunctionPointer: return "__is_member_function_pointer";
1326 case UTT_IsMemberObjectPointer: return "__is_member_object_pointer";
1327 case UTT_IsMemberPointer: return "__is_member_pointer";
1328 case UTT_IsObject: return "__is_object";
1329 case UTT_IsPOD: return "__is_pod";
1330 case UTT_IsPointer: return "__is_pointer";
1331 case UTT_IsPolymorphic: return "__is_polymorphic";
1332 case UTT_IsReference: return "__is_reference";
1333 case UTT_IsRvalueReference: return "__is_rvalue_reference";
1334 case UTT_IsScalar: return "__is_scalar";
1335 case UTT_IsSigned: return "__is_signed";
1336 case UTT_IsStandardLayout: return "__is_standard_layout";
1337 case UTT_IsTrivial: return "__is_trivial";
1338 case UTT_IsTriviallyCopyable: return "__is_trivially_copyable";
1339 case UTT_IsUnion: return "__is_union";
1340 case UTT_IsUnsigned: return "__is_unsigned";
1341 case UTT_IsVoid: return "__is_void";
1342 case UTT_IsVolatile: return "__is_volatile";
1344 llvm_unreachable("Type trait not covered by switch statement");
1347 static const char *getTypeTraitName(BinaryTypeTrait BTT) {
1349 case BTT_IsBaseOf: return "__is_base_of";
1350 case BTT_IsConvertible: return "__is_convertible";
1351 case BTT_IsSame: return "__is_same";
1352 case BTT_TypeCompatible: return "__builtin_types_compatible_p";
1353 case BTT_IsConvertibleTo: return "__is_convertible_to";
1355 llvm_unreachable("Binary type trait not covered by switch");
1358 static const char *getTypeTraitName(ArrayTypeTrait ATT) {
1360 case ATT_ArrayRank: return "__array_rank";
1361 case ATT_ArrayExtent: return "__array_extent";
1363 llvm_unreachable("Array type trait not covered by switch");
1366 static const char *getExpressionTraitName(ExpressionTrait ET) {
1368 case ET_IsLValueExpr: return "__is_lvalue_expr";
1369 case ET_IsRValueExpr: return "__is_rvalue_expr";
1371 llvm_unreachable("Expression type trait not covered by switch");
1374 void StmtPrinter::VisitUnaryTypeTraitExpr(UnaryTypeTraitExpr *E) {
1375 OS << getTypeTraitName(E->getTrait()) << "("
1376 << E->getQueriedType().getAsString(Policy) << ")";
1379 void StmtPrinter::VisitBinaryTypeTraitExpr(BinaryTypeTraitExpr *E) {
1380 OS << getTypeTraitName(E->getTrait()) << "("
1381 << E->getLhsType().getAsString(Policy) << ","
1382 << E->getRhsType().getAsString(Policy) << ")";
1385 void StmtPrinter::VisitArrayTypeTraitExpr(ArrayTypeTraitExpr *E) {
1386 OS << getTypeTraitName(E->getTrait()) << "("
1387 << E->getQueriedType().getAsString(Policy) << ")";
1390 void StmtPrinter::VisitExpressionTraitExpr(ExpressionTraitExpr *E) {
1391 OS << getExpressionTraitName(E->getTrait()) << "(";
1392 PrintExpr(E->getQueriedExpression());
1396 void StmtPrinter::VisitCXXNoexceptExpr(CXXNoexceptExpr *E) {
1398 PrintExpr(E->getOperand());
1402 void StmtPrinter::VisitPackExpansionExpr(PackExpansionExpr *E) {
1403 PrintExpr(E->getPattern());
1407 void StmtPrinter::VisitSizeOfPackExpr(SizeOfPackExpr *E) {
1408 OS << "sizeof...(" << E->getPack()->getNameAsString() << ")";
1411 void StmtPrinter::VisitSubstNonTypeTemplateParmPackExpr(
1412 SubstNonTypeTemplateParmPackExpr *Node) {
1413 OS << Node->getParameterPack()->getNameAsString();
1416 void StmtPrinter::VisitSubstNonTypeTemplateParmExpr(
1417 SubstNonTypeTemplateParmExpr *Node) {
1418 Visit(Node->getReplacement());
1421 void StmtPrinter::VisitMaterializeTemporaryExpr(MaterializeTemporaryExpr *Node){
1422 PrintExpr(Node->GetTemporaryExpr());
1427 void StmtPrinter::VisitObjCStringLiteral(ObjCStringLiteral *Node) {
1429 VisitStringLiteral(Node->getString());
1432 void StmtPrinter::VisitObjCEncodeExpr(ObjCEncodeExpr *Node) {
1433 OS << "@encode(" << Node->getEncodedType().getAsString(Policy) << ')';
1436 void StmtPrinter::VisitObjCSelectorExpr(ObjCSelectorExpr *Node) {
1437 OS << "@selector(" << Node->getSelector().getAsString() << ')';
1440 void StmtPrinter::VisitObjCProtocolExpr(ObjCProtocolExpr *Node) {
1441 OS << "@protocol(" << Node->getProtocol() << ')';
1444 void StmtPrinter::VisitObjCMessageExpr(ObjCMessageExpr *Mess) {
1446 switch (Mess->getReceiverKind()) {
1447 case ObjCMessageExpr::Instance:
1448 PrintExpr(Mess->getInstanceReceiver());
1451 case ObjCMessageExpr::Class:
1452 OS << Mess->getClassReceiver().getAsString(Policy);
1455 case ObjCMessageExpr::SuperInstance:
1456 case ObjCMessageExpr::SuperClass:
1462 Selector selector = Mess->getSelector();
1463 if (selector.isUnarySelector()) {
1464 OS << selector.getNameForSlot(0);
1466 for (unsigned i = 0, e = Mess->getNumArgs(); i != e; ++i) {
1467 if (i < selector.getNumArgs()) {
1468 if (i > 0) OS << ' ';
1469 if (selector.getIdentifierInfoForSlot(i))
1470 OS << selector.getIdentifierInfoForSlot(i)->getName() << ':';
1474 else OS << ", "; // Handle variadic methods.
1476 PrintExpr(Mess->getArg(i));
1483 StmtPrinter::VisitObjCIndirectCopyRestoreExpr(ObjCIndirectCopyRestoreExpr *E) {
1484 PrintExpr(E->getSubExpr());
1488 StmtPrinter::VisitObjCBridgedCastExpr(ObjCBridgedCastExpr *E) {
1489 OS << "(" << E->getBridgeKindName() << E->getType().getAsString(Policy)
1491 PrintExpr(E->getSubExpr());
1494 void StmtPrinter::VisitBlockExpr(BlockExpr *Node) {
1495 BlockDecl *BD = Node->getBlockDecl();
1498 const FunctionType *AFT = Node->getFunctionType();
1500 if (isa<FunctionNoProtoType>(AFT)) {
1502 } else if (!BD->param_empty() || cast<FunctionProtoType>(AFT)->isVariadic()) {
1504 std::string ParamStr;
1505 for (BlockDecl::param_iterator AI = BD->param_begin(),
1506 E = BD->param_end(); AI != E; ++AI) {
1507 if (AI != BD->param_begin()) OS << ", ";
1508 ParamStr = (*AI)->getNameAsString();
1509 (*AI)->getType().getAsStringInternal(ParamStr, Policy);
1513 const FunctionProtoType *FT = cast<FunctionProtoType>(AFT);
1514 if (FT->isVariadic()) {
1515 if (!BD->param_empty()) OS << ", ";
1522 void StmtPrinter::VisitBlockDeclRefExpr(BlockDeclRefExpr *Node) {
1523 OS << Node->getDecl();
1526 void StmtPrinter::VisitOpaqueValueExpr(OpaqueValueExpr *Node) {}
1528 void StmtPrinter::VisitAsTypeExpr(AsTypeExpr *Node) {
1529 OS << "__builtin_astype(";
1530 PrintExpr(Node->getSrcExpr());
1531 OS << ", " << Node->getType().getAsString();
1535 //===----------------------------------------------------------------------===//
1536 // Stmt method implementations
1537 //===----------------------------------------------------------------------===//
1539 void Stmt::dumpPretty(ASTContext& Context) const {
1540 printPretty(llvm::errs(), Context, 0,
1541 PrintingPolicy(Context.getLangOptions()));
1544 void Stmt::printPretty(llvm::raw_ostream &OS, ASTContext& Context,
1545 PrinterHelper* Helper,
1546 const PrintingPolicy &Policy,
1547 unsigned Indentation) const {
1553 if (Policy.Dump && &Context) {
1554 dump(OS, Context.getSourceManager());
1558 StmtPrinter P(OS, Context, Helper, Policy, Indentation);
1559 P.Visit(const_cast<Stmt*>(this));
1562 //===----------------------------------------------------------------------===//
1564 //===----------------------------------------------------------------------===//
1566 // Implement virtual destructor.
1567 PrinterHelper::~PrinterHelper() {}