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/PrettyPrinter.h"
19 #include "llvm/Support/Format.h"
20 #include "clang/AST/Expr.h"
21 using namespace clang;
23 //===----------------------------------------------------------------------===//
24 // StmtPrinter Visitor
25 //===----------------------------------------------------------------------===//
28 class StmtPrinter : public StmtVisitor<StmtPrinter> {
29 llvm::raw_ostream &OS;
32 clang::PrinterHelper* Helper;
33 PrintingPolicy Policy;
36 StmtPrinter(llvm::raw_ostream &os, ASTContext &C, PrinterHelper* helper,
37 const PrintingPolicy &Policy,
38 unsigned Indentation = 0)
39 : OS(os), Context(C), IndentLevel(Indentation), Helper(helper),
42 void PrintStmt(Stmt *S) {
43 PrintStmt(S, Policy.Indentation);
46 void PrintStmt(Stmt *S, int SubIndent) {
47 IndentLevel += SubIndent;
48 if (S && isa<Expr>(S)) {
49 // If this is an expr used in a stmt context, indent and newline it.
56 Indent() << "<<<NULL STATEMENT>>>\n";
58 IndentLevel -= SubIndent;
61 void PrintRawCompoundStmt(CompoundStmt *S);
62 void PrintRawDecl(Decl *D);
63 void PrintRawDeclStmt(DeclStmt *S);
64 void PrintRawIfStmt(IfStmt *If);
65 void PrintRawCXXCatchStmt(CXXCatchStmt *Catch);
67 void PrintExpr(Expr *E) {
74 llvm::raw_ostream &Indent(int Delta = 0) {
75 for (int i = 0, e = IndentLevel+Delta; i < e; ++i)
81 if (Helper && Helper->handledStmt(S,OS))
83 else StmtVisitor<StmtPrinter>::Visit(S);
86 void VisitStmt(Stmt *Node) ATTRIBUTE_UNUSED {
87 Indent() << "<<unknown stmt type>>\n";
89 void VisitExpr(Expr *Node) ATTRIBUTE_UNUSED {
90 OS << "<<unknown expr type>>";
92 void VisitCXXNamedCastExpr(CXXNamedCastExpr *Node);
94 #define ABSTRACT_STMT(CLASS)
95 #define STMT(CLASS, PARENT) \
96 void Visit##CLASS(CLASS *Node);
97 #include "clang/AST/StmtNodes.inc"
101 //===----------------------------------------------------------------------===//
102 // Stmt printing methods.
103 //===----------------------------------------------------------------------===//
105 /// PrintRawCompoundStmt - Print a compound stmt without indenting the {, and
106 /// with no newline after the }.
107 void StmtPrinter::PrintRawCompoundStmt(CompoundStmt *Node) {
109 for (CompoundStmt::body_iterator I = Node->body_begin(), E = Node->body_end();
116 void StmtPrinter::PrintRawDecl(Decl *D) {
117 D->print(OS, Policy, IndentLevel);
120 void StmtPrinter::PrintRawDeclStmt(DeclStmt *S) {
121 DeclStmt::decl_iterator Begin = S->decl_begin(), End = S->decl_end();
122 llvm::SmallVector<Decl*, 2> Decls;
123 for ( ; Begin != End; ++Begin)
124 Decls.push_back(*Begin);
126 Decl::printGroup(Decls.data(), Decls.size(), OS, Policy, IndentLevel);
129 void StmtPrinter::VisitNullStmt(NullStmt *Node) {
133 void StmtPrinter::VisitDeclStmt(DeclStmt *Node) {
135 PrintRawDeclStmt(Node);
139 void StmtPrinter::VisitCompoundStmt(CompoundStmt *Node) {
141 PrintRawCompoundStmt(Node);
145 void StmtPrinter::VisitCaseStmt(CaseStmt *Node) {
146 Indent(-1) << "case ";
147 PrintExpr(Node->getLHS());
148 if (Node->getRHS()) {
150 PrintExpr(Node->getRHS());
154 PrintStmt(Node->getSubStmt(), 0);
157 void StmtPrinter::VisitDefaultStmt(DefaultStmt *Node) {
158 Indent(-1) << "default:\n";
159 PrintStmt(Node->getSubStmt(), 0);
162 void StmtPrinter::VisitLabelStmt(LabelStmt *Node) {
163 Indent(-1) << Node->getName() << ":\n";
164 PrintStmt(Node->getSubStmt(), 0);
167 void StmtPrinter::PrintRawIfStmt(IfStmt *If) {
169 PrintExpr(If->getCond());
172 if (CompoundStmt *CS = dyn_cast<CompoundStmt>(If->getThen())) {
174 PrintRawCompoundStmt(CS);
175 OS << (If->getElse() ? ' ' : '\n');
178 PrintStmt(If->getThen());
179 if (If->getElse()) Indent();
182 if (Stmt *Else = If->getElse()) {
185 if (CompoundStmt *CS = dyn_cast<CompoundStmt>(Else)) {
187 PrintRawCompoundStmt(CS);
189 } else if (IfStmt *ElseIf = dyn_cast<IfStmt>(Else)) {
191 PrintRawIfStmt(ElseIf);
194 PrintStmt(If->getElse());
199 void StmtPrinter::VisitIfStmt(IfStmt *If) {
204 void StmtPrinter::VisitSwitchStmt(SwitchStmt *Node) {
205 Indent() << "switch (";
206 PrintExpr(Node->getCond());
209 // Pretty print compoundstmt bodies (very common).
210 if (CompoundStmt *CS = dyn_cast<CompoundStmt>(Node->getBody())) {
212 PrintRawCompoundStmt(CS);
216 PrintStmt(Node->getBody());
220 void StmtPrinter::VisitSwitchCase(SwitchCase*) {
221 assert(0 && "SwitchCase is an abstract class");
224 void StmtPrinter::VisitWhileStmt(WhileStmt *Node) {
225 Indent() << "while (";
226 PrintExpr(Node->getCond());
228 PrintStmt(Node->getBody());
231 void StmtPrinter::VisitDoStmt(DoStmt *Node) {
233 if (CompoundStmt *CS = dyn_cast<CompoundStmt>(Node->getBody())) {
234 PrintRawCompoundStmt(CS);
238 PrintStmt(Node->getBody());
243 PrintExpr(Node->getCond());
247 void StmtPrinter::VisitForStmt(ForStmt *Node) {
249 if (Node->getInit()) {
250 if (DeclStmt *DS = dyn_cast<DeclStmt>(Node->getInit()))
251 PrintRawDeclStmt(DS);
253 PrintExpr(cast<Expr>(Node->getInit()));
256 if (Node->getCond()) {
258 PrintExpr(Node->getCond());
261 if (Node->getInc()) {
263 PrintExpr(Node->getInc());
267 if (CompoundStmt *CS = dyn_cast<CompoundStmt>(Node->getBody())) {
268 PrintRawCompoundStmt(CS);
272 PrintStmt(Node->getBody());
276 void StmtPrinter::VisitObjCForCollectionStmt(ObjCForCollectionStmt *Node) {
278 if (DeclStmt *DS = dyn_cast<DeclStmt>(Node->getElement()))
279 PrintRawDeclStmt(DS);
281 PrintExpr(cast<Expr>(Node->getElement()));
283 PrintExpr(Node->getCollection());
286 if (CompoundStmt *CS = dyn_cast<CompoundStmt>(Node->getBody())) {
287 PrintRawCompoundStmt(CS);
291 PrintStmt(Node->getBody());
295 void StmtPrinter::VisitGotoStmt(GotoStmt *Node) {
296 Indent() << "goto " << Node->getLabel()->getName() << ";\n";
299 void StmtPrinter::VisitIndirectGotoStmt(IndirectGotoStmt *Node) {
300 Indent() << "goto *";
301 PrintExpr(Node->getTarget());
305 void StmtPrinter::VisitContinueStmt(ContinueStmt *Node) {
306 Indent() << "continue;\n";
309 void StmtPrinter::VisitBreakStmt(BreakStmt *Node) {
310 Indent() << "break;\n";
314 void StmtPrinter::VisitReturnStmt(ReturnStmt *Node) {
315 Indent() << "return";
316 if (Node->getRetValue()) {
318 PrintExpr(Node->getRetValue());
324 void StmtPrinter::VisitAsmStmt(AsmStmt *Node) {
327 if (Node->isVolatile())
331 VisitStringLiteral(Node->getAsmString());
334 if (Node->getNumOutputs() != 0 || Node->getNumInputs() != 0 ||
335 Node->getNumClobbers() != 0)
338 for (unsigned i = 0, e = Node->getNumOutputs(); i != e; ++i) {
342 if (!Node->getOutputName(i).empty()) {
344 OS << Node->getOutputName(i);
348 VisitStringLiteral(Node->getOutputConstraintLiteral(i));
350 Visit(Node->getOutputExpr(i));
354 if (Node->getNumInputs() != 0 || Node->getNumClobbers() != 0)
357 for (unsigned i = 0, e = Node->getNumInputs(); i != e; ++i) {
361 if (!Node->getInputName(i).empty()) {
363 OS << Node->getInputName(i);
367 VisitStringLiteral(Node->getInputConstraintLiteral(i));
369 Visit(Node->getInputExpr(i));
373 if (Node->getNumClobbers() != 0)
376 for (unsigned i = 0, e = Node->getNumClobbers(); i != e; ++i) {
380 VisitStringLiteral(Node->getClobber(i));
386 void StmtPrinter::VisitObjCAtTryStmt(ObjCAtTryStmt *Node) {
388 if (CompoundStmt *TS = dyn_cast<CompoundStmt>(Node->getTryBody())) {
389 PrintRawCompoundStmt(TS);
393 for (unsigned I = 0, N = Node->getNumCatchStmts(); I != N; ++I) {
394 ObjCAtCatchStmt *catchStmt = Node->getCatchStmt(I);
395 Indent() << "@catch(";
396 if (catchStmt->getCatchParamDecl()) {
397 if (Decl *DS = catchStmt->getCatchParamDecl())
401 if (CompoundStmt *CS = dyn_cast<CompoundStmt>(catchStmt->getCatchBody())) {
402 PrintRawCompoundStmt(CS);
407 if (ObjCAtFinallyStmt *FS = static_cast<ObjCAtFinallyStmt *>(
408 Node->getFinallyStmt())) {
409 Indent() << "@finally";
410 PrintRawCompoundStmt(dyn_cast<CompoundStmt>(FS->getFinallyBody()));
415 void StmtPrinter::VisitObjCAtFinallyStmt(ObjCAtFinallyStmt *Node) {
418 void StmtPrinter::VisitObjCAtCatchStmt (ObjCAtCatchStmt *Node) {
419 Indent() << "@catch (...) { /* todo */ } \n";
422 void StmtPrinter::VisitObjCAtThrowStmt(ObjCAtThrowStmt *Node) {
423 Indent() << "@throw";
424 if (Node->getThrowExpr()) {
426 PrintExpr(Node->getThrowExpr());
431 void StmtPrinter::VisitObjCAtSynchronizedStmt(ObjCAtSynchronizedStmt *Node) {
432 Indent() << "@synchronized (";
433 PrintExpr(Node->getSynchExpr());
435 PrintRawCompoundStmt(Node->getSynchBody());
439 void StmtPrinter::PrintRawCXXCatchStmt(CXXCatchStmt *Node) {
441 if (Decl *ExDecl = Node->getExceptionDecl())
442 PrintRawDecl(ExDecl);
446 PrintRawCompoundStmt(cast<CompoundStmt>(Node->getHandlerBlock()));
449 void StmtPrinter::VisitCXXCatchStmt(CXXCatchStmt *Node) {
451 PrintRawCXXCatchStmt(Node);
455 void StmtPrinter::VisitCXXTryStmt(CXXTryStmt *Node) {
457 PrintRawCompoundStmt(Node->getTryBlock());
458 for (unsigned i = 0, e = Node->getNumHandlers(); i < e; ++i) {
460 PrintRawCXXCatchStmt(Node->getHandler(i));
465 //===----------------------------------------------------------------------===//
466 // Expr printing methods.
467 //===----------------------------------------------------------------------===//
469 void StmtPrinter::VisitDeclRefExpr(DeclRefExpr *Node) {
470 if (NestedNameSpecifier *Qualifier = Node->getQualifier())
471 Qualifier->print(OS, Policy);
472 OS << Node->getNameInfo();
473 if (Node->hasExplicitTemplateArgs())
474 OS << TemplateSpecializationType::PrintTemplateArgumentList(
475 Node->getTemplateArgs(),
476 Node->getNumTemplateArgs(),
480 void StmtPrinter::VisitDependentScopeDeclRefExpr(
481 DependentScopeDeclRefExpr *Node) {
482 Node->getQualifier()->print(OS, Policy);
483 OS << Node->getNameInfo();
484 if (Node->hasExplicitTemplateArgs())
485 OS << TemplateSpecializationType::PrintTemplateArgumentList(
486 Node->getTemplateArgs(),
487 Node->getNumTemplateArgs(),
491 void StmtPrinter::VisitUnresolvedLookupExpr(UnresolvedLookupExpr *Node) {
492 if (Node->getQualifier())
493 Node->getQualifier()->print(OS, Policy);
494 OS << Node->getNameInfo();
495 if (Node->hasExplicitTemplateArgs())
496 OS << TemplateSpecializationType::PrintTemplateArgumentList(
497 Node->getTemplateArgs(),
498 Node->getNumTemplateArgs(),
502 void StmtPrinter::VisitObjCIvarRefExpr(ObjCIvarRefExpr *Node) {
503 if (Node->getBase()) {
504 PrintExpr(Node->getBase());
505 OS << (Node->isArrow() ? "->" : ".");
507 OS << Node->getDecl();
510 void StmtPrinter::VisitObjCPropertyRefExpr(ObjCPropertyRefExpr *Node) {
511 if (Node->getBase()) {
512 PrintExpr(Node->getBase());
515 OS << Node->getProperty()->getName();
518 void StmtPrinter::VisitObjCImplicitSetterGetterRefExpr(
519 ObjCImplicitSetterGetterRefExpr *Node) {
520 if (Node->getBase()) {
521 PrintExpr(Node->getBase());
524 if (Node->getGetterMethod())
525 OS << Node->getGetterMethod();
529 void StmtPrinter::VisitPredefinedExpr(PredefinedExpr *Node) {
530 switch (Node->getIdentType()) {
532 assert(0 && "unknown case");
533 case PredefinedExpr::Func:
536 case PredefinedExpr::Function:
537 OS << "__FUNCTION__";
539 case PredefinedExpr::PrettyFunction:
540 OS << "__PRETTY_FUNCTION__";
545 void StmtPrinter::VisitCharacterLiteral(CharacterLiteral *Node) {
546 unsigned value = Node->getValue();
557 // TODO: K&R: the meaning of '\\a' is different in traditional C
563 // Nonstandard escape sequence.
583 if (value < 256 && isprint(value)) {
584 OS << "'" << (char)value << "'";
585 } else if (value < 256) {
586 OS << "'\\x" << llvm::format("%x", value) << "'";
588 // FIXME what to really do here?
594 void StmtPrinter::VisitIntegerLiteral(IntegerLiteral *Node) {
595 bool isSigned = Node->getType()->isSignedIntegerType();
596 OS << Node->getValue().toString(10, isSigned);
598 // Emit suffixes. Integer literals are always a builtin integer type.
599 switch (Node->getType()->getAs<BuiltinType>()->getKind()) {
600 default: assert(0 && "Unexpected type for integer literal!");
601 case BuiltinType::Int: break; // no suffix.
602 case BuiltinType::UInt: OS << 'U'; break;
603 case BuiltinType::Long: OS << 'L'; break;
604 case BuiltinType::ULong: OS << "UL"; break;
605 case BuiltinType::LongLong: OS << "LL"; break;
606 case BuiltinType::ULongLong: OS << "ULL"; break;
609 void StmtPrinter::VisitFloatingLiteral(FloatingLiteral *Node) {
610 // FIXME: print value more precisely.
611 OS << Node->getValueAsApproximateDouble();
614 void StmtPrinter::VisitImaginaryLiteral(ImaginaryLiteral *Node) {
615 PrintExpr(Node->getSubExpr());
619 void StmtPrinter::VisitStringLiteral(StringLiteral *Str) {
620 if (Str->isWide()) OS << 'L';
623 // FIXME: this doesn't print wstrings right.
624 llvm::StringRef StrData = Str->getString();
625 for (llvm::StringRef::iterator I = StrData.begin(), E = StrData.end();
627 unsigned char Char = *I;
633 else // Output anything hard as an octal escape.
635 << (char)('0'+ ((Char >> 6) & 7))
636 << (char)('0'+ ((Char >> 3) & 7))
637 << (char)('0'+ ((Char >> 0) & 7));
639 // Handle some common non-printable cases to make dumps prettier.
640 case '\\': OS << "\\\\"; break;
641 case '"': OS << "\\\""; break;
642 case '\n': OS << "\\n"; break;
643 case '\t': OS << "\\t"; break;
644 case '\a': OS << "\\a"; break;
645 case '\b': OS << "\\b"; break;
650 void StmtPrinter::VisitParenExpr(ParenExpr *Node) {
652 PrintExpr(Node->getSubExpr());
655 void StmtPrinter::VisitUnaryOperator(UnaryOperator *Node) {
656 if (!Node->isPostfix()) {
657 OS << UnaryOperator::getOpcodeStr(Node->getOpcode());
659 // Print a space if this is an "identifier operator" like __real, or if
660 // it might be concatenated incorrectly like '+'.
661 switch (Node->getOpcode()) {
670 if (isa<UnaryOperator>(Node->getSubExpr()))
675 PrintExpr(Node->getSubExpr());
677 if (Node->isPostfix())
678 OS << UnaryOperator::getOpcodeStr(Node->getOpcode());
681 void StmtPrinter::VisitOffsetOfExpr(OffsetOfExpr *Node) {
682 OS << "__builtin_offsetof(";
683 OS << Node->getTypeSourceInfo()->getType().getAsString(Policy) << ", ";
684 bool PrintedSomething = false;
685 for (unsigned i = 0, n = Node->getNumComponents(); i < n; ++i) {
686 OffsetOfExpr::OffsetOfNode ON = Node->getComponent(i);
687 if (ON.getKind() == OffsetOfExpr::OffsetOfNode::Array) {
690 PrintExpr(Node->getIndexExpr(ON.getArrayExprIndex()));
692 PrintedSomething = true;
696 // Skip implicit base indirections.
697 if (ON.getKind() == OffsetOfExpr::OffsetOfNode::Base)
700 // Field or identifier node.
701 IdentifierInfo *Id = ON.getFieldName();
705 if (PrintedSomething)
708 PrintedSomething = true;
714 void StmtPrinter::VisitSizeOfAlignOfExpr(SizeOfAlignOfExpr *Node) {
715 OS << (Node->isSizeOf() ? "sizeof" : "__alignof");
716 if (Node->isArgumentType())
717 OS << "(" << Node->getArgumentType().getAsString(Policy) << ")";
720 PrintExpr(Node->getArgumentExpr());
723 void StmtPrinter::VisitArraySubscriptExpr(ArraySubscriptExpr *Node) {
724 PrintExpr(Node->getLHS());
726 PrintExpr(Node->getRHS());
730 void StmtPrinter::VisitCallExpr(CallExpr *Call) {
731 PrintExpr(Call->getCallee());
733 for (unsigned i = 0, e = Call->getNumArgs(); i != e; ++i) {
734 if (isa<CXXDefaultArgExpr>(Call->getArg(i))) {
735 // Don't print any defaulted arguments
740 PrintExpr(Call->getArg(i));
744 void StmtPrinter::VisitMemberExpr(MemberExpr *Node) {
745 // FIXME: Suppress printing implicit bases (like "this")
746 PrintExpr(Node->getBase());
747 if (FieldDecl *FD = dyn_cast<FieldDecl>(Node->getMemberDecl()))
748 if (FD->isAnonymousStructOrUnion())
750 OS << (Node->isArrow() ? "->" : ".");
751 if (NestedNameSpecifier *Qualifier = Node->getQualifier())
752 Qualifier->print(OS, Policy);
754 OS << Node->getMemberNameInfo();
756 if (Node->hasExplicitTemplateArgs())
757 OS << TemplateSpecializationType::PrintTemplateArgumentList(
758 Node->getTemplateArgs(),
759 Node->getNumTemplateArgs(),
762 void StmtPrinter::VisitObjCIsaExpr(ObjCIsaExpr *Node) {
763 PrintExpr(Node->getBase());
764 OS << (Node->isArrow() ? "->isa" : ".isa");
767 void StmtPrinter::VisitExtVectorElementExpr(ExtVectorElementExpr *Node) {
768 PrintExpr(Node->getBase());
770 OS << Node->getAccessor().getName();
772 void StmtPrinter::VisitCStyleCastExpr(CStyleCastExpr *Node) {
773 OS << "(" << Node->getType().getAsString(Policy) << ")";
774 PrintExpr(Node->getSubExpr());
776 void StmtPrinter::VisitCompoundLiteralExpr(CompoundLiteralExpr *Node) {
777 OS << "(" << Node->getType().getAsString(Policy) << ")";
778 PrintExpr(Node->getInitializer());
780 void StmtPrinter::VisitImplicitCastExpr(ImplicitCastExpr *Node) {
781 // No need to print anything, simply forward to the sub expression.
782 PrintExpr(Node->getSubExpr());
784 void StmtPrinter::VisitBinaryOperator(BinaryOperator *Node) {
785 PrintExpr(Node->getLHS());
786 OS << " " << BinaryOperator::getOpcodeStr(Node->getOpcode()) << " ";
787 PrintExpr(Node->getRHS());
789 void StmtPrinter::VisitCompoundAssignOperator(CompoundAssignOperator *Node) {
790 PrintExpr(Node->getLHS());
791 OS << " " << BinaryOperator::getOpcodeStr(Node->getOpcode()) << " ";
792 PrintExpr(Node->getRHS());
794 void StmtPrinter::VisitConditionalOperator(ConditionalOperator *Node) {
795 PrintExpr(Node->getCond());
797 if (Node->getLHS()) {
799 PrintExpr(Node->getLHS());
802 else { // Handle GCC extension where LHS can be NULL.
806 PrintExpr(Node->getRHS());
811 void StmtPrinter::VisitAddrLabelExpr(AddrLabelExpr *Node) {
812 OS << "&&" << Node->getLabel()->getName();
815 void StmtPrinter::VisitStmtExpr(StmtExpr *E) {
817 PrintRawCompoundStmt(E->getSubStmt());
821 void StmtPrinter::VisitTypesCompatibleExpr(TypesCompatibleExpr *Node) {
822 OS << "__builtin_types_compatible_p(";
823 OS << Node->getArgType1().getAsString(Policy) << ",";
824 OS << Node->getArgType2().getAsString(Policy) << ")";
827 void StmtPrinter::VisitChooseExpr(ChooseExpr *Node) {
828 OS << "__builtin_choose_expr(";
829 PrintExpr(Node->getCond());
831 PrintExpr(Node->getLHS());
833 PrintExpr(Node->getRHS());
837 void StmtPrinter::VisitGNUNullExpr(GNUNullExpr *) {
841 void StmtPrinter::VisitShuffleVectorExpr(ShuffleVectorExpr *Node) {
842 OS << "__builtin_shufflevector(";
843 for (unsigned i = 0, e = Node->getNumSubExprs(); i != e; ++i) {
845 PrintExpr(Node->getExpr(i));
850 void StmtPrinter::VisitInitListExpr(InitListExpr* Node) {
851 if (Node->getSyntacticForm()) {
852 Visit(Node->getSyntacticForm());
857 for (unsigned i = 0, e = Node->getNumInits(); i != e; ++i) {
859 if (Node->getInit(i))
860 PrintExpr(Node->getInit(i));
867 void StmtPrinter::VisitParenListExpr(ParenListExpr* Node) {
869 for (unsigned i = 0, e = Node->getNumExprs(); i != e; ++i) {
871 PrintExpr(Node->getExpr(i));
876 void StmtPrinter::VisitDesignatedInitExpr(DesignatedInitExpr *Node) {
877 for (DesignatedInitExpr::designators_iterator D = Node->designators_begin(),
878 DEnd = Node->designators_end();
880 if (D->isFieldDesignator()) {
881 if (D->getDotLoc().isInvalid())
882 OS << D->getFieldName()->getName() << ":";
884 OS << "." << D->getFieldName()->getName();
887 if (D->isArrayDesignator()) {
888 PrintExpr(Node->getArrayIndex(*D));
890 PrintExpr(Node->getArrayRangeStart(*D));
892 PrintExpr(Node->getArrayRangeEnd(*D));
899 PrintExpr(Node->getInit());
902 void StmtPrinter::VisitImplicitValueInitExpr(ImplicitValueInitExpr *Node) {
903 if (Policy.LangOpts.CPlusPlus)
904 OS << "/*implicit*/" << Node->getType().getAsString(Policy) << "()";
906 OS << "/*implicit*/(" << Node->getType().getAsString(Policy) << ")";
907 if (Node->getType()->isRecordType())
914 void StmtPrinter::VisitVAArgExpr(VAArgExpr *Node) {
915 OS << "__builtin_va_arg(";
916 PrintExpr(Node->getSubExpr());
918 OS << Node->getType().getAsString(Policy);
923 void StmtPrinter::VisitCXXOperatorCallExpr(CXXOperatorCallExpr *Node) {
924 const char *OpStrings[NUM_OVERLOADED_OPERATORS] = {
926 #define OVERLOADED_OPERATOR(Name,Spelling,Token,Unary,Binary,MemberOnly) \
928 #include "clang/Basic/OperatorKinds.def"
931 OverloadedOperatorKind Kind = Node->getOperator();
932 if (Kind == OO_PlusPlus || Kind == OO_MinusMinus) {
933 if (Node->getNumArgs() == 1) {
934 OS << OpStrings[Kind] << ' ';
935 PrintExpr(Node->getArg(0));
937 PrintExpr(Node->getArg(0));
938 OS << ' ' << OpStrings[Kind];
940 } else if (Kind == OO_Call) {
941 PrintExpr(Node->getArg(0));
943 for (unsigned ArgIdx = 1; ArgIdx < Node->getNumArgs(); ++ArgIdx) {
946 if (!isa<CXXDefaultArgExpr>(Node->getArg(ArgIdx)))
947 PrintExpr(Node->getArg(ArgIdx));
950 } else if (Kind == OO_Subscript) {
951 PrintExpr(Node->getArg(0));
953 PrintExpr(Node->getArg(1));
955 } else if (Node->getNumArgs() == 1) {
956 OS << OpStrings[Kind] << ' ';
957 PrintExpr(Node->getArg(0));
958 } else if (Node->getNumArgs() == 2) {
959 PrintExpr(Node->getArg(0));
960 OS << ' ' << OpStrings[Kind] << ' ';
961 PrintExpr(Node->getArg(1));
963 assert(false && "unknown overloaded operator");
967 void StmtPrinter::VisitCXXMemberCallExpr(CXXMemberCallExpr *Node) {
968 VisitCallExpr(cast<CallExpr>(Node));
971 void StmtPrinter::VisitCXXNamedCastExpr(CXXNamedCastExpr *Node) {
972 OS << Node->getCastName() << '<';
973 OS << Node->getTypeAsWritten().getAsString(Policy) << ">(";
974 PrintExpr(Node->getSubExpr());
978 void StmtPrinter::VisitCXXStaticCastExpr(CXXStaticCastExpr *Node) {
979 VisitCXXNamedCastExpr(Node);
982 void StmtPrinter::VisitCXXDynamicCastExpr(CXXDynamicCastExpr *Node) {
983 VisitCXXNamedCastExpr(Node);
986 void StmtPrinter::VisitCXXReinterpretCastExpr(CXXReinterpretCastExpr *Node) {
987 VisitCXXNamedCastExpr(Node);
990 void StmtPrinter::VisitCXXConstCastExpr(CXXConstCastExpr *Node) {
991 VisitCXXNamedCastExpr(Node);
994 void StmtPrinter::VisitCXXTypeidExpr(CXXTypeidExpr *Node) {
996 if (Node->isTypeOperand()) {
997 OS << Node->getTypeOperand().getAsString(Policy);
999 PrintExpr(Node->getExprOperand());
1004 void StmtPrinter::VisitCXXBoolLiteralExpr(CXXBoolLiteralExpr *Node) {
1005 OS << (Node->getValue() ? "true" : "false");
1008 void StmtPrinter::VisitCXXNullPtrLiteralExpr(CXXNullPtrLiteralExpr *Node) {
1012 void StmtPrinter::VisitCXXThisExpr(CXXThisExpr *Node) {
1016 void StmtPrinter::VisitCXXThrowExpr(CXXThrowExpr *Node) {
1017 if (Node->getSubExpr() == 0)
1021 PrintExpr(Node->getSubExpr());
1025 void StmtPrinter::VisitCXXDefaultArgExpr(CXXDefaultArgExpr *Node) {
1026 // Nothing to print: we picked up the default argument
1029 void StmtPrinter::VisitCXXFunctionalCastExpr(CXXFunctionalCastExpr *Node) {
1030 OS << Node->getType().getAsString(Policy);
1032 PrintExpr(Node->getSubExpr());
1036 void StmtPrinter::VisitCXXBindTemporaryExpr(CXXBindTemporaryExpr *Node) {
1037 PrintExpr(Node->getSubExpr());
1040 void StmtPrinter::VisitCXXTemporaryObjectExpr(CXXTemporaryObjectExpr *Node) {
1041 OS << Node->getType().getAsString(Policy);
1043 for (CXXTemporaryObjectExpr::arg_iterator Arg = Node->arg_begin(),
1044 ArgEnd = Node->arg_end();
1045 Arg != ArgEnd; ++Arg) {
1046 if (Arg != Node->arg_begin())
1053 void StmtPrinter::VisitCXXScalarValueInitExpr(CXXScalarValueInitExpr *Node) {
1054 OS << Node->getType().getAsString(Policy) << "()";
1057 void StmtPrinter::VisitCXXNewExpr(CXXNewExpr *E) {
1058 if (E->isGlobalNew())
1061 unsigned NumPlace = E->getNumPlacementArgs();
1064 PrintExpr(E->getPlacementArg(0));
1065 for (unsigned i = 1; i < NumPlace; ++i) {
1067 PrintExpr(E->getPlacementArg(i));
1071 if (E->isParenTypeId())
1074 if (Expr *Size = E->getArraySize()) {
1075 llvm::raw_string_ostream s(TypeS);
1076 Size->printPretty(s, Context, Helper, Policy);
1078 TypeS = "[" + TypeS + "]";
1080 E->getAllocatedType().getAsStringInternal(TypeS, Policy);
1082 if (E->isParenTypeId())
1085 if (E->hasInitializer()) {
1087 unsigned NumCons = E->getNumConstructorArgs();
1089 PrintExpr(E->getConstructorArg(0));
1090 for (unsigned i = 1; i < NumCons; ++i) {
1092 PrintExpr(E->getConstructorArg(i));
1099 void StmtPrinter::VisitCXXDeleteExpr(CXXDeleteExpr *E) {
1100 if (E->isGlobalDelete())
1103 if (E->isArrayForm())
1105 PrintExpr(E->getArgument());
1108 void StmtPrinter::VisitCXXPseudoDestructorExpr(CXXPseudoDestructorExpr *E) {
1109 PrintExpr(E->getBase());
1114 if (E->getQualifier())
1115 E->getQualifier()->print(OS, Policy);
1118 if (IdentifierInfo *II = E->getDestroyedTypeIdentifier())
1119 OS << II->getName();
1121 E->getDestroyedType().getAsStringInternal(TypeS, Policy);
1125 void StmtPrinter::VisitCXXConstructExpr(CXXConstructExpr *E) {
1126 // FIXME. For now we just print a trivial constructor call expression,
1127 // constructing its first argument object.
1128 if (E->getNumArgs() == 1) {
1129 CXXConstructorDecl *CD = E->getConstructor();
1130 if (CD->isTrivial())
1131 PrintExpr(E->getArg(0));
1133 // Nothing to print.
1136 void StmtPrinter::VisitCXXExprWithTemporaries(CXXExprWithTemporaries *E) {
1137 // Just forward to the sub expression.
1138 PrintExpr(E->getSubExpr());
1142 StmtPrinter::VisitCXXUnresolvedConstructExpr(
1143 CXXUnresolvedConstructExpr *Node) {
1144 OS << Node->getTypeAsWritten().getAsString(Policy);
1146 for (CXXUnresolvedConstructExpr::arg_iterator Arg = Node->arg_begin(),
1147 ArgEnd = Node->arg_end();
1148 Arg != ArgEnd; ++Arg) {
1149 if (Arg != Node->arg_begin())
1156 void StmtPrinter::VisitCXXDependentScopeMemberExpr(
1157 CXXDependentScopeMemberExpr *Node) {
1158 if (!Node->isImplicitAccess()) {
1159 PrintExpr(Node->getBase());
1160 OS << (Node->isArrow() ? "->" : ".");
1162 if (NestedNameSpecifier *Qualifier = Node->getQualifier())
1163 Qualifier->print(OS, Policy);
1164 else if (Node->hasExplicitTemplateArgs())
1165 // FIXME: Track use of "template" keyword explicitly?
1168 OS << Node->getMemberNameInfo();
1170 if (Node->hasExplicitTemplateArgs()) {
1171 OS << TemplateSpecializationType::PrintTemplateArgumentList(
1172 Node->getTemplateArgs(),
1173 Node->getNumTemplateArgs(),
1178 void StmtPrinter::VisitUnresolvedMemberExpr(UnresolvedMemberExpr *Node) {
1179 if (!Node->isImplicitAccess()) {
1180 PrintExpr(Node->getBase());
1181 OS << (Node->isArrow() ? "->" : ".");
1183 if (NestedNameSpecifier *Qualifier = Node->getQualifier())
1184 Qualifier->print(OS, Policy);
1186 // FIXME: this might originally have been written with 'template'
1188 OS << Node->getMemberNameInfo();
1190 if (Node->hasExplicitTemplateArgs()) {
1191 OS << TemplateSpecializationType::PrintTemplateArgumentList(
1192 Node->getTemplateArgs(),
1193 Node->getNumTemplateArgs(),
1198 static const char *getTypeTraitName(UnaryTypeTrait UTT) {
1200 default: assert(false && "Unknown type trait");
1201 case UTT_HasNothrowAssign: return "__has_nothrow_assign";
1202 case UTT_HasNothrowCopy: return "__has_nothrow_copy";
1203 case UTT_HasNothrowConstructor: return "__has_nothrow_constructor";
1204 case UTT_HasTrivialAssign: return "__has_trivial_assign";
1205 case UTT_HasTrivialCopy: return "__has_trivial_copy";
1206 case UTT_HasTrivialConstructor: return "__has_trivial_constructor";
1207 case UTT_HasTrivialDestructor: return "__has_trivial_destructor";
1208 case UTT_HasVirtualDestructor: return "__has_virtual_destructor";
1209 case UTT_IsAbstract: return "__is_abstract";
1210 case UTT_IsClass: return "__is_class";
1211 case UTT_IsEmpty: return "__is_empty";
1212 case UTT_IsEnum: return "__is_enum";
1213 case UTT_IsPOD: return "__is_pod";
1214 case UTT_IsPolymorphic: return "__is_polymorphic";
1215 case UTT_IsUnion: return "__is_union";
1219 void StmtPrinter::VisitUnaryTypeTraitExpr(UnaryTypeTraitExpr *E) {
1220 OS << getTypeTraitName(E->getTrait()) << "("
1221 << E->getQueriedType().getAsString(Policy) << ")";
1226 void StmtPrinter::VisitObjCStringLiteral(ObjCStringLiteral *Node) {
1228 VisitStringLiteral(Node->getString());
1231 void StmtPrinter::VisitObjCEncodeExpr(ObjCEncodeExpr *Node) {
1232 OS << "@encode(" << Node->getEncodedType().getAsString(Policy) << ')';
1235 void StmtPrinter::VisitObjCSelectorExpr(ObjCSelectorExpr *Node) {
1236 OS << "@selector(" << Node->getSelector().getAsString() << ')';
1239 void StmtPrinter::VisitObjCProtocolExpr(ObjCProtocolExpr *Node) {
1240 OS << "@protocol(" << Node->getProtocol() << ')';
1243 void StmtPrinter::VisitObjCMessageExpr(ObjCMessageExpr *Mess) {
1245 switch (Mess->getReceiverKind()) {
1246 case ObjCMessageExpr::Instance:
1247 PrintExpr(Mess->getInstanceReceiver());
1250 case ObjCMessageExpr::Class:
1251 OS << Mess->getClassReceiver().getAsString(Policy);
1254 case ObjCMessageExpr::SuperInstance:
1255 case ObjCMessageExpr::SuperClass:
1261 Selector selector = Mess->getSelector();
1262 if (selector.isUnarySelector()) {
1263 OS << selector.getIdentifierInfoForSlot(0)->getName();
1265 for (unsigned i = 0, e = Mess->getNumArgs(); i != e; ++i) {
1266 if (i < selector.getNumArgs()) {
1267 if (i > 0) OS << ' ';
1268 if (selector.getIdentifierInfoForSlot(i))
1269 OS << selector.getIdentifierInfoForSlot(i)->getName() << ':';
1273 else OS << ", "; // Handle variadic methods.
1275 PrintExpr(Mess->getArg(i));
1281 void StmtPrinter::VisitObjCSuperExpr(ObjCSuperExpr *) {
1285 void StmtPrinter::VisitBlockExpr(BlockExpr *Node) {
1286 BlockDecl *BD = Node->getBlockDecl();
1289 const FunctionType *AFT = Node->getFunctionType();
1291 if (isa<FunctionNoProtoType>(AFT)) {
1293 } else if (!BD->param_empty() || cast<FunctionProtoType>(AFT)->isVariadic()) {
1295 std::string ParamStr;
1296 for (BlockDecl::param_iterator AI = BD->param_begin(),
1297 E = BD->param_end(); AI != E; ++AI) {
1298 if (AI != BD->param_begin()) OS << ", ";
1299 ParamStr = (*AI)->getNameAsString();
1300 (*AI)->getType().getAsStringInternal(ParamStr, Policy);
1304 const FunctionProtoType *FT = cast<FunctionProtoType>(AFT);
1305 if (FT->isVariadic()) {
1306 if (!BD->param_empty()) OS << ", ";
1313 void StmtPrinter::VisitBlockDeclRefExpr(BlockDeclRefExpr *Node) {
1314 OS << Node->getDecl();
1316 //===----------------------------------------------------------------------===//
1317 // Stmt method implementations
1318 //===----------------------------------------------------------------------===//
1320 void Stmt::dumpPretty(ASTContext& Context) const {
1321 printPretty(llvm::errs(), Context, 0,
1322 PrintingPolicy(Context.getLangOptions()));
1325 void Stmt::printPretty(llvm::raw_ostream &OS, ASTContext& Context,
1326 PrinterHelper* Helper,
1327 const PrintingPolicy &Policy,
1328 unsigned Indentation) const {
1334 if (Policy.Dump && &Context) {
1335 dump(OS, Context.getSourceManager());
1339 StmtPrinter P(OS, Context, Helper, Policy, Indentation);
1340 P.Visit(const_cast<Stmt*>(this));
1343 //===----------------------------------------------------------------------===//
1345 //===----------------------------------------------------------------------===//
1347 // Implement virtual destructor.
1348 PrinterHelper::~PrinterHelper() {}