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/Compiler.h"
20 #include "llvm/Support/Streams.h"
21 #include "llvm/Support/Format.h"
22 using namespace clang;
24 //===----------------------------------------------------------------------===//
25 // StmtPrinter Visitor
26 //===----------------------------------------------------------------------===//
29 class VISIBILITY_HIDDEN StmtPrinter : public StmtVisitor<StmtPrinter> {
30 llvm::raw_ostream &OS;
33 clang::PrinterHelper* Helper;
34 PrintingPolicy Policy;
37 StmtPrinter(llvm::raw_ostream &os, ASTContext &C, PrinterHelper* helper,
38 const PrintingPolicy &Policy = PrintingPolicy(),
39 unsigned Indentation = 0)
40 : OS(os), Context(C), IndentLevel(Indentation), Helper(helper),
43 void PrintStmt(Stmt *S) {
44 PrintStmt(S, Policy.Indentation);
47 void PrintStmt(Stmt *S, int SubIndent) {
48 IndentLevel += SubIndent;
49 if (S && isa<Expr>(S)) {
50 // If this is an expr used in a stmt context, indent and newline it.
57 Indent() << "<<<NULL STATEMENT>>>\n";
59 IndentLevel -= SubIndent;
62 void PrintRawCompoundStmt(CompoundStmt *S);
63 void PrintRawDecl(Decl *D);
64 void PrintRawDeclStmt(DeclStmt *S);
65 void PrintRawIfStmt(IfStmt *If);
66 void PrintRawCXXCatchStmt(CXXCatchStmt *Catch);
68 void PrintExpr(Expr *E) {
75 llvm::raw_ostream &Indent(int Delta = 0) {
76 for (int i = 0, e = IndentLevel+Delta; i < e; ++i)
81 bool PrintOffsetOfDesignator(Expr *E);
82 void VisitUnaryOffsetOf(UnaryOperator *Node);
85 if (Helper && Helper->handledStmt(S,OS))
87 else StmtVisitor<StmtPrinter>::Visit(S);
90 void VisitStmt(Stmt *Node);
91 #define STMT(CLASS, PARENT) \
92 void Visit##CLASS(CLASS *Node);
93 #include "clang/AST/StmtNodes.def"
97 //===----------------------------------------------------------------------===//
98 // Stmt printing methods.
99 //===----------------------------------------------------------------------===//
101 void StmtPrinter::VisitStmt(Stmt *Node) {
102 Indent() << "<<unknown stmt type>>\n";
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, Context, 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, Context, Policy,
130 void StmtPrinter::VisitNullStmt(NullStmt *Node) {
134 void StmtPrinter::VisitDeclStmt(DeclStmt *Node) {
136 PrintRawDeclStmt(Node);
140 void StmtPrinter::VisitCompoundStmt(CompoundStmt *Node) {
142 PrintRawCompoundStmt(Node);
146 void StmtPrinter::VisitCaseStmt(CaseStmt *Node) {
147 Indent(-1) << "case ";
148 PrintExpr(Node->getLHS());
149 if (Node->getRHS()) {
151 PrintExpr(Node->getRHS());
155 PrintStmt(Node->getSubStmt(), 0);
158 void StmtPrinter::VisitDefaultStmt(DefaultStmt *Node) {
159 Indent(-1) << "default:\n";
160 PrintStmt(Node->getSubStmt(), 0);
163 void StmtPrinter::VisitLabelStmt(LabelStmt *Node) {
164 Indent(-1) << Node->getName() << ":\n";
165 PrintStmt(Node->getSubStmt(), 0);
168 void StmtPrinter::PrintRawIfStmt(IfStmt *If) {
170 PrintExpr(If->getCond());
173 if (CompoundStmt *CS = dyn_cast<CompoundStmt>(If->getThen())) {
175 PrintRawCompoundStmt(CS);
176 OS << (If->getElse() ? ' ' : '\n');
179 PrintStmt(If->getThen());
180 if (If->getElse()) Indent();
183 if (Stmt *Else = If->getElse()) {
186 if (CompoundStmt *CS = dyn_cast<CompoundStmt>(Else)) {
188 PrintRawCompoundStmt(CS);
190 } else if (IfStmt *ElseIf = dyn_cast<IfStmt>(Else)) {
192 PrintRawIfStmt(ElseIf);
195 PrintStmt(If->getElse());
200 void StmtPrinter::VisitIfStmt(IfStmt *If) {
205 void StmtPrinter::VisitSwitchStmt(SwitchStmt *Node) {
206 Indent() << "switch (";
207 PrintExpr(Node->getCond());
210 // Pretty print compoundstmt bodies (very common).
211 if (CompoundStmt *CS = dyn_cast<CompoundStmt>(Node->getBody())) {
213 PrintRawCompoundStmt(CS);
217 PrintStmt(Node->getBody());
221 void StmtPrinter::VisitSwitchCase(SwitchCase*) {
222 assert(0 && "SwitchCase is an abstract class");
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::VisitGotoStmt(GotoStmt *Node) {
297 Indent() << "goto " << Node->getLabel()->getName() << ";\n";
300 void StmtPrinter::VisitIndirectGotoStmt(IndirectGotoStmt *Node) {
301 Indent() << "goto *";
302 PrintExpr(Node->getTarget());
306 void StmtPrinter::VisitContinueStmt(ContinueStmt *Node) {
307 Indent() << "continue;\n";
310 void StmtPrinter::VisitBreakStmt(BreakStmt *Node) {
311 Indent() << "break;\n";
315 void StmtPrinter::VisitReturnStmt(ReturnStmt *Node) {
316 Indent() << "return";
317 if (Node->getRetValue()) {
319 PrintExpr(Node->getRetValue());
325 void StmtPrinter::VisitAsmStmt(AsmStmt *Node) {
328 if (Node->isVolatile())
332 VisitStringLiteral(Node->getAsmString());
335 if (Node->getNumOutputs() != 0 || Node->getNumInputs() != 0 ||
336 Node->getNumClobbers() != 0)
339 for (unsigned i = 0, e = Node->getNumOutputs(); i != e; ++i) {
343 if (!Node->getOutputName(i).empty()) {
345 OS << Node->getOutputName(i);
349 VisitStringLiteral(Node->getOutputConstraintLiteral(i));
351 Visit(Node->getOutputExpr(i));
355 if (Node->getNumInputs() != 0 || Node->getNumClobbers() != 0)
358 for (unsigned i = 0, e = Node->getNumInputs(); i != e; ++i) {
362 if (!Node->getInputName(i).empty()) {
364 OS << Node->getInputName(i);
368 VisitStringLiteral(Node->getInputConstraintLiteral(i));
370 Visit(Node->getInputExpr(i));
374 if (Node->getNumClobbers() != 0)
377 for (unsigned i = 0, e = Node->getNumClobbers(); i != e; ++i) {
381 VisitStringLiteral(Node->getClobber(i));
387 void StmtPrinter::VisitObjCAtTryStmt(ObjCAtTryStmt *Node) {
389 if (CompoundStmt *TS = dyn_cast<CompoundStmt>(Node->getTryBody())) {
390 PrintRawCompoundStmt(TS);
394 for (ObjCAtCatchStmt *catchStmt =
395 static_cast<ObjCAtCatchStmt *>(Node->getCatchStmts());
398 static_cast<ObjCAtCatchStmt *>(catchStmt->getNextCatchStmt())) {
399 Indent() << "@catch(";
400 if (catchStmt->getCatchParamDecl()) {
401 if (Decl *DS = catchStmt->getCatchParamDecl())
405 if (CompoundStmt *CS = dyn_cast<CompoundStmt>(catchStmt->getCatchBody()))
407 PrintRawCompoundStmt(CS);
412 if (ObjCAtFinallyStmt *FS =static_cast<ObjCAtFinallyStmt *>(
413 Node->getFinallyStmt())) {
414 Indent() << "@finally";
415 PrintRawCompoundStmt(dyn_cast<CompoundStmt>(FS->getFinallyBody()));
420 void StmtPrinter::VisitObjCAtFinallyStmt(ObjCAtFinallyStmt *Node) {
423 void StmtPrinter::VisitObjCAtCatchStmt (ObjCAtCatchStmt *Node) {
424 Indent() << "@catch (...) { /* todo */ } \n";
427 void StmtPrinter::VisitObjCAtThrowStmt(ObjCAtThrowStmt *Node) {
428 Indent() << "@throw";
429 if (Node->getThrowExpr()) {
431 PrintExpr(Node->getThrowExpr());
436 void StmtPrinter::VisitObjCAtSynchronizedStmt(ObjCAtSynchronizedStmt *Node) {
437 Indent() << "@synchronized (";
438 PrintExpr(Node->getSynchExpr());
440 PrintRawCompoundStmt(Node->getSynchBody());
444 void StmtPrinter::PrintRawCXXCatchStmt(CXXCatchStmt *Node) {
446 if (Decl *ExDecl = Node->getExceptionDecl())
447 PrintRawDecl(ExDecl);
451 PrintRawCompoundStmt(cast<CompoundStmt>(Node->getHandlerBlock()));
454 void StmtPrinter::VisitCXXCatchStmt(CXXCatchStmt *Node) {
456 PrintRawCXXCatchStmt(Node);
460 void StmtPrinter::VisitCXXTryStmt(CXXTryStmt *Node) {
462 PrintRawCompoundStmt(Node->getTryBlock());
463 for(unsigned i = 0, e = Node->getNumHandlers(); i < e; ++i) {
465 PrintRawCXXCatchStmt(Node->getHandler(i));
470 //===----------------------------------------------------------------------===//
471 // Expr printing methods.
472 //===----------------------------------------------------------------------===//
474 void StmtPrinter::VisitExpr(Expr *Node) {
475 OS << "<<unknown expr type>>";
478 void StmtPrinter::VisitDeclRefExpr(DeclRefExpr *Node) {
479 OS << Node->getDecl()->getNameAsString();
482 void StmtPrinter::VisitQualifiedDeclRefExpr(QualifiedDeclRefExpr *Node) {
483 NamedDecl *D = Node->getDecl();
485 Node->getQualifier()->print(OS, Policy);
486 OS << D->getNameAsString();
489 void StmtPrinter::VisitUnresolvedDeclRefExpr(UnresolvedDeclRefExpr *Node) {
490 Node->getQualifier()->print(OS, Policy);
491 OS << Node->getDeclName().getAsString();
494 void StmtPrinter::VisitObjCIvarRefExpr(ObjCIvarRefExpr *Node) {
495 if (Node->getBase()) {
496 PrintExpr(Node->getBase());
497 OS << (Node->isArrow() ? "->" : ".");
499 OS << Node->getDecl()->getNameAsString();
502 void StmtPrinter::VisitObjCPropertyRefExpr(ObjCPropertyRefExpr *Node) {
503 if (Node->getBase()) {
504 PrintExpr(Node->getBase());
507 OS << Node->getProperty()->getNameAsCString();
510 void StmtPrinter::VisitObjCKVCRefExpr(ObjCKVCRefExpr *Node) {
511 if (Node->getBase()) {
512 PrintExpr(Node->getBase());
515 // FIXME: Setter/Getter names
518 void StmtPrinter::VisitPredefinedExpr(PredefinedExpr *Node) {
519 switch (Node->getIdentType()) {
521 assert(0 && "unknown case");
522 case PredefinedExpr::Func:
525 case PredefinedExpr::Function:
526 OS << "__FUNCTION__";
528 case PredefinedExpr::PrettyFunction:
529 OS << "__PRETTY_FUNCTION__";
534 void StmtPrinter::VisitCharacterLiteral(CharacterLiteral *Node) {
535 unsigned value = Node->getValue();
546 // TODO: K&R: the meaning of '\\a' is different in traditional C
552 // Nonstandard escape sequence.
572 if (value < 256 && isprint(value)) {
573 OS << "'" << (char)value << "'";
574 } else if (value < 256) {
575 OS << "'\\x" << llvm::format("%x", value) << "'";
577 // FIXME what to really do here?
583 void StmtPrinter::VisitIntegerLiteral(IntegerLiteral *Node) {
584 bool isSigned = Node->getType()->isSignedIntegerType();
585 OS << Node->getValue().toString(10, isSigned);
587 // Emit suffixes. Integer literals are always a builtin integer type.
588 switch (Node->getType()->getAsBuiltinType()->getKind()) {
589 default: assert(0 && "Unexpected type for integer literal!");
590 case BuiltinType::Int: break; // no suffix.
591 case BuiltinType::UInt: OS << 'U'; break;
592 case BuiltinType::Long: OS << 'L'; break;
593 case BuiltinType::ULong: OS << "UL"; break;
594 case BuiltinType::LongLong: OS << "LL"; break;
595 case BuiltinType::ULongLong: OS << "ULL"; break;
598 void StmtPrinter::VisitFloatingLiteral(FloatingLiteral *Node) {
599 // FIXME: print value more precisely.
600 OS << Node->getValueAsApproximateDouble();
603 void StmtPrinter::VisitImaginaryLiteral(ImaginaryLiteral *Node) {
604 PrintExpr(Node->getSubExpr());
608 void StmtPrinter::VisitStringLiteral(StringLiteral *Str) {
609 if (Str->isWide()) OS << 'L';
612 // FIXME: this doesn't print wstrings right.
613 for (unsigned i = 0, e = Str->getByteLength(); i != e; ++i) {
614 unsigned char Char = Str->getStrData()[i];
620 else // Output anything hard as an octal escape.
622 << (char)('0'+ ((Char >> 6) & 7))
623 << (char)('0'+ ((Char >> 3) & 7))
624 << (char)('0'+ ((Char >> 0) & 7));
626 // Handle some common non-printable cases to make dumps prettier.
627 case '\\': OS << "\\\\"; break;
628 case '"': OS << "\\\""; break;
629 case '\n': OS << "\\n"; break;
630 case '\t': OS << "\\t"; break;
631 case '\a': OS << "\\a"; break;
632 case '\b': OS << "\\b"; break;
637 void StmtPrinter::VisitParenExpr(ParenExpr *Node) {
639 PrintExpr(Node->getSubExpr());
642 void StmtPrinter::VisitUnaryOperator(UnaryOperator *Node) {
643 if (!Node->isPostfix()) {
644 OS << UnaryOperator::getOpcodeStr(Node->getOpcode());
646 // Print a space if this is an "identifier operator" like __real, or if
647 // it might be concatenated incorrectly like '+'.
648 switch (Node->getOpcode()) {
650 case UnaryOperator::Real:
651 case UnaryOperator::Imag:
652 case UnaryOperator::Extension:
655 case UnaryOperator::Plus:
656 case UnaryOperator::Minus:
657 if (isa<UnaryOperator>(Node->getSubExpr()))
662 PrintExpr(Node->getSubExpr());
664 if (Node->isPostfix())
665 OS << UnaryOperator::getOpcodeStr(Node->getOpcode());
668 bool StmtPrinter::PrintOffsetOfDesignator(Expr *E) {
669 if (isa<UnaryOperator>(E)) {
670 // Base case, print the type and comma.
671 OS << E->getType().getAsString() << ", ";
673 } else if (ArraySubscriptExpr *ASE = dyn_cast<ArraySubscriptExpr>(E)) {
674 PrintOffsetOfDesignator(ASE->getLHS());
676 PrintExpr(ASE->getRHS());
680 MemberExpr *ME = cast<MemberExpr>(E);
681 bool IsFirst = PrintOffsetOfDesignator(ME->getBase());
682 OS << (IsFirst ? "" : ".") << ME->getMemberDecl()->getNameAsString();
687 void StmtPrinter::VisitUnaryOffsetOf(UnaryOperator *Node) {
688 OS << "__builtin_offsetof(";
689 PrintOffsetOfDesignator(Node->getSubExpr());
693 void StmtPrinter::VisitSizeOfAlignOfExpr(SizeOfAlignOfExpr *Node) {
694 OS << (Node->isSizeOf() ? "sizeof" : "__alignof");
695 if (Node->isArgumentType())
696 OS << "(" << Node->getArgumentType().getAsString() << ")";
699 PrintExpr(Node->getArgumentExpr());
702 void StmtPrinter::VisitArraySubscriptExpr(ArraySubscriptExpr *Node) {
703 PrintExpr(Node->getLHS());
705 PrintExpr(Node->getRHS());
709 void StmtPrinter::VisitCallExpr(CallExpr *Call) {
710 PrintExpr(Call->getCallee());
712 for (unsigned i = 0, e = Call->getNumArgs(); i != e; ++i) {
713 if (isa<CXXDefaultArgExpr>(Call->getArg(i))) {
714 // Don't print any defaulted arguments
719 PrintExpr(Call->getArg(i));
723 void StmtPrinter::VisitMemberExpr(MemberExpr *Node) {
724 // FIXME: Suppress printing implicit bases (like "this")
725 PrintExpr(Node->getBase());
726 OS << (Node->isArrow() ? "->" : ".");
727 // FIXME: Suppress printing references to unnamed objects
728 // representing anonymous unions/structs
729 OS << Node->getMemberDecl()->getNameAsString();
731 void StmtPrinter::VisitExtVectorElementExpr(ExtVectorElementExpr *Node) {
732 PrintExpr(Node->getBase());
734 OS << Node->getAccessor().getName();
736 void StmtPrinter::VisitCastExpr(CastExpr *) {
737 assert(0 && "CastExpr is an abstract class");
739 void StmtPrinter::VisitExplicitCastExpr(ExplicitCastExpr *) {
740 assert(0 && "ExplicitCastExpr is an abstract class");
742 void StmtPrinter::VisitCStyleCastExpr(CStyleCastExpr *Node) {
743 OS << "(" << Node->getType().getAsString() << ")";
744 PrintExpr(Node->getSubExpr());
746 void StmtPrinter::VisitCompoundLiteralExpr(CompoundLiteralExpr *Node) {
747 OS << "(" << Node->getType().getAsString() << ")";
748 PrintExpr(Node->getInitializer());
750 void StmtPrinter::VisitImplicitCastExpr(ImplicitCastExpr *Node) {
751 // No need to print anything, simply forward to the sub expression.
752 PrintExpr(Node->getSubExpr());
754 void StmtPrinter::VisitBinaryOperator(BinaryOperator *Node) {
755 PrintExpr(Node->getLHS());
756 OS << " " << BinaryOperator::getOpcodeStr(Node->getOpcode()) << " ";
757 PrintExpr(Node->getRHS());
759 void StmtPrinter::VisitCompoundAssignOperator(CompoundAssignOperator *Node) {
760 PrintExpr(Node->getLHS());
761 OS << " " << BinaryOperator::getOpcodeStr(Node->getOpcode()) << " ";
762 PrintExpr(Node->getRHS());
764 void StmtPrinter::VisitConditionalOperator(ConditionalOperator *Node) {
765 PrintExpr(Node->getCond());
767 if (Node->getLHS()) {
769 PrintExpr(Node->getLHS());
772 else { // Handle GCC extension where LHS can be NULL.
776 PrintExpr(Node->getRHS());
781 void StmtPrinter::VisitAddrLabelExpr(AddrLabelExpr *Node) {
782 OS << "&&" << Node->getLabel()->getName();
785 void StmtPrinter::VisitStmtExpr(StmtExpr *E) {
787 PrintRawCompoundStmt(E->getSubStmt());
791 void StmtPrinter::VisitTypesCompatibleExpr(TypesCompatibleExpr *Node) {
792 OS << "__builtin_types_compatible_p(";
793 OS << Node->getArgType1().getAsString() << ",";
794 OS << Node->getArgType2().getAsString() << ")";
797 void StmtPrinter::VisitChooseExpr(ChooseExpr *Node) {
798 OS << "__builtin_choose_expr(";
799 PrintExpr(Node->getCond());
801 PrintExpr(Node->getLHS());
803 PrintExpr(Node->getRHS());
807 void StmtPrinter::VisitGNUNullExpr(GNUNullExpr *) {
811 void StmtPrinter::VisitShuffleVectorExpr(ShuffleVectorExpr *Node) {
812 OS << "__builtin_shufflevector(";
813 for (unsigned i = 0, e = Node->getNumSubExprs(); i != e; ++i) {
815 PrintExpr(Node->getExpr(i));
820 void StmtPrinter::VisitInitListExpr(InitListExpr* Node) {
821 if (Node->getSyntacticForm()) {
822 Visit(Node->getSyntacticForm());
827 for (unsigned i = 0, e = Node->getNumInits(); i != e; ++i) {
829 if (Node->getInit(i))
830 PrintExpr(Node->getInit(i));
837 void StmtPrinter::VisitDesignatedInitExpr(DesignatedInitExpr *Node) {
838 for (DesignatedInitExpr::designators_iterator D = Node->designators_begin(),
839 DEnd = Node->designators_end();
841 if (D->isFieldDesignator()) {
842 if (D->getDotLoc().isInvalid())
843 OS << D->getFieldName()->getName() << ":";
845 OS << "." << D->getFieldName()->getName();
848 if (D->isArrayDesignator()) {
849 PrintExpr(Node->getArrayIndex(*D));
851 PrintExpr(Node->getArrayRangeStart(*D));
853 PrintExpr(Node->getArrayRangeEnd(*D));
860 PrintExpr(Node->getInit());
863 void StmtPrinter::VisitImplicitValueInitExpr(ImplicitValueInitExpr *Node) {
864 if (Policy.CPlusPlus)
865 OS << "/*implicit*/" << Node->getType().getAsString(Policy) << "()";
867 OS << "/*implicit*/(" << Node->getType().getAsString(Policy) << ")";
868 if (Node->getType()->isRecordType())
875 void StmtPrinter::VisitVAArgExpr(VAArgExpr *Node) {
876 OS << "__builtin_va_arg(";
877 PrintExpr(Node->getSubExpr());
879 OS << Node->getType().getAsString();
884 void StmtPrinter::VisitCXXOperatorCallExpr(CXXOperatorCallExpr *Node) {
885 const char *OpStrings[NUM_OVERLOADED_OPERATORS] = {
887 #define OVERLOADED_OPERATOR(Name,Spelling,Token,Unary,Binary,MemberOnly) \
889 #include "clang/Basic/OperatorKinds.def"
892 OverloadedOperatorKind Kind = Node->getOperator();
893 if (Kind == OO_PlusPlus || Kind == OO_MinusMinus) {
894 if (Node->getNumArgs() == 1) {
895 OS << OpStrings[Kind] << ' ';
896 PrintExpr(Node->getArg(0));
898 PrintExpr(Node->getArg(0));
899 OS << ' ' << OpStrings[Kind];
901 } else if (Kind == OO_Call) {
902 PrintExpr(Node->getArg(0));
904 for (unsigned ArgIdx = 1; ArgIdx < Node->getNumArgs(); ++ArgIdx) {
907 if (!isa<CXXDefaultArgExpr>(Node->getArg(ArgIdx)))
908 PrintExpr(Node->getArg(ArgIdx));
911 } else if (Kind == OO_Subscript) {
912 PrintExpr(Node->getArg(0));
914 PrintExpr(Node->getArg(1));
916 } else if (Node->getNumArgs() == 1) {
917 OS << OpStrings[Kind] << ' ';
918 PrintExpr(Node->getArg(0));
919 } else if (Node->getNumArgs() == 2) {
920 PrintExpr(Node->getArg(0));
921 OS << ' ' << OpStrings[Kind] << ' ';
922 PrintExpr(Node->getArg(1));
924 assert(false && "unknown overloaded operator");
928 void StmtPrinter::VisitCXXMemberCallExpr(CXXMemberCallExpr *Node) {
929 VisitCallExpr(cast<CallExpr>(Node));
932 void StmtPrinter::VisitCXXNamedCastExpr(CXXNamedCastExpr *Node) {
933 OS << Node->getCastName() << '<';
934 OS << Node->getTypeAsWritten().getAsString() << ">(";
935 PrintExpr(Node->getSubExpr());
939 void StmtPrinter::VisitCXXStaticCastExpr(CXXStaticCastExpr *Node) {
940 VisitCXXNamedCastExpr(Node);
943 void StmtPrinter::VisitCXXDynamicCastExpr(CXXDynamicCastExpr *Node) {
944 VisitCXXNamedCastExpr(Node);
947 void StmtPrinter::VisitCXXReinterpretCastExpr(CXXReinterpretCastExpr *Node) {
948 VisitCXXNamedCastExpr(Node);
951 void StmtPrinter::VisitCXXConstCastExpr(CXXConstCastExpr *Node) {
952 VisitCXXNamedCastExpr(Node);
955 void StmtPrinter::VisitCXXTypeidExpr(CXXTypeidExpr *Node) {
957 if (Node->isTypeOperand()) {
958 OS << Node->getTypeOperand().getAsString();
960 PrintExpr(Node->getExprOperand());
965 void StmtPrinter::VisitCXXBoolLiteralExpr(CXXBoolLiteralExpr *Node) {
966 OS << (Node->getValue() ? "true" : "false");
969 void StmtPrinter::VisitCXXNullPtrLiteralExpr(CXXNullPtrLiteralExpr *Node) {
973 void StmtPrinter::VisitCXXThisExpr(CXXThisExpr *Node) {
977 void StmtPrinter::VisitCXXThrowExpr(CXXThrowExpr *Node) {
978 if (Node->getSubExpr() == 0)
982 PrintExpr(Node->getSubExpr());
986 void StmtPrinter::VisitCXXDefaultArgExpr(CXXDefaultArgExpr *Node) {
987 // Nothing to print: we picked up the default argument
990 void StmtPrinter::VisitCXXFunctionalCastExpr(CXXFunctionalCastExpr *Node) {
991 OS << Node->getType().getAsString();
993 PrintExpr(Node->getSubExpr());
997 void StmtPrinter::VisitCXXBindTemporaryExpr(CXXBindTemporaryExpr *Node) {
998 PrintExpr(Node->getSubExpr());
1001 void StmtPrinter::VisitCXXTemporaryObjectExpr(CXXTemporaryObjectExpr *Node) {
1002 OS << Node->getType().getAsString();
1004 for (CXXTemporaryObjectExpr::arg_iterator Arg = Node->arg_begin(),
1005 ArgEnd = Node->arg_end();
1006 Arg != ArgEnd; ++Arg) {
1007 if (Arg != Node->arg_begin())
1014 void StmtPrinter::VisitCXXZeroInitValueExpr(CXXZeroInitValueExpr *Node) {
1015 OS << Node->getType().getAsString() << "()";
1019 StmtPrinter::VisitCXXConditionDeclExpr(CXXConditionDeclExpr *E) {
1020 PrintRawDecl(E->getVarDecl());
1023 void StmtPrinter::VisitCXXNewExpr(CXXNewExpr *E) {
1024 if (E->isGlobalNew())
1027 unsigned NumPlace = E->getNumPlacementArgs();
1030 PrintExpr(E->getPlacementArg(0));
1031 for (unsigned i = 1; i < NumPlace; ++i) {
1033 PrintExpr(E->getPlacementArg(i));
1037 if (E->isParenTypeId())
1040 if (Expr *Size = E->getArraySize()) {
1041 llvm::raw_string_ostream s(TypeS);
1042 Size->printPretty(s, Context, Helper, Policy);
1044 TypeS = "[" + TypeS + "]";
1046 E->getAllocatedType().getAsStringInternal(TypeS, Policy);
1048 if (E->isParenTypeId())
1051 if (E->hasInitializer()) {
1053 unsigned NumCons = E->getNumConstructorArgs();
1055 PrintExpr(E->getConstructorArg(0));
1056 for (unsigned i = 1; i < NumCons; ++i) {
1058 PrintExpr(E->getConstructorArg(i));
1065 void StmtPrinter::VisitCXXDeleteExpr(CXXDeleteExpr *E) {
1066 if (E->isGlobalDelete())
1069 if (E->isArrayForm())
1071 PrintExpr(E->getArgument());
1074 void StmtPrinter::VisitUnresolvedFunctionNameExpr(UnresolvedFunctionNameExpr *E) {
1075 OS << E->getName().getAsString();
1078 void StmtPrinter::VisitCXXConstructExpr(CXXConstructExpr *E) {
1079 // Nothing to print.
1082 void StmtPrinter::VisitCXXExprWithTemporaries(CXXExprWithTemporaries *E) {
1083 // Just forward to the sub expression.
1084 PrintExpr(E->getSubExpr());
1088 StmtPrinter::VisitCXXUnresolvedConstructExpr(
1089 CXXUnresolvedConstructExpr *Node) {
1090 OS << Node->getTypeAsWritten().getAsString();
1092 for (CXXUnresolvedConstructExpr::arg_iterator Arg = Node->arg_begin(),
1093 ArgEnd = Node->arg_end();
1094 Arg != ArgEnd; ++Arg) {
1095 if (Arg != Node->arg_begin())
1102 void StmtPrinter::VisitCXXUnresolvedMemberExpr(CXXUnresolvedMemberExpr *Node) {
1103 PrintExpr(Node->getBase());
1104 OS << (Node->isArrow() ? "->" : ".");
1105 OS << Node->getMember().getAsString();
1108 static const char *getTypeTraitName(UnaryTypeTrait UTT) {
1110 default: assert(false && "Unknown type trait");
1111 case UTT_HasNothrowAssign: return "__has_nothrow_assign";
1112 case UTT_HasNothrowCopy: return "__has_nothrow_copy";
1113 case UTT_HasNothrowConstructor: return "__has_nothrow_constructor";
1114 case UTT_HasTrivialAssign: return "__has_trivial_assign";
1115 case UTT_HasTrivialCopy: return "__has_trivial_copy";
1116 case UTT_HasTrivialConstructor: return "__has_trivial_constructor";
1117 case UTT_HasTrivialDestructor: return "__has_trivial_destructor";
1118 case UTT_HasVirtualDestructor: return "__has_virtual_destructor";
1119 case UTT_IsAbstract: return "__is_abstract";
1120 case UTT_IsClass: return "__is_class";
1121 case UTT_IsEmpty: return "__is_empty";
1122 case UTT_IsEnum: return "__is_enum";
1123 case UTT_IsPOD: return "__is_pod";
1124 case UTT_IsPolymorphic: return "__is_polymorphic";
1125 case UTT_IsUnion: return "__is_union";
1129 void StmtPrinter::VisitUnaryTypeTraitExpr(UnaryTypeTraitExpr *E) {
1130 OS << getTypeTraitName(E->getTrait()) << "("
1131 << E->getQueriedType().getAsString() << ")";
1136 void StmtPrinter::VisitObjCStringLiteral(ObjCStringLiteral *Node) {
1138 VisitStringLiteral(Node->getString());
1141 void StmtPrinter::VisitObjCEncodeExpr(ObjCEncodeExpr *Node) {
1142 OS << "@encode(" << Node->getEncodedType().getAsString() << ')';
1145 void StmtPrinter::VisitObjCSelectorExpr(ObjCSelectorExpr *Node) {
1146 OS << "@selector(" << Node->getSelector().getAsString() << ')';
1149 void StmtPrinter::VisitObjCProtocolExpr(ObjCProtocolExpr *Node) {
1150 OS << "@protocol(" << Node->getProtocol()->getNameAsString() << ')';
1153 void StmtPrinter::VisitObjCMessageExpr(ObjCMessageExpr *Mess) {
1155 Expr *receiver = Mess->getReceiver();
1156 if (receiver) PrintExpr(receiver);
1157 else OS << Mess->getClassName()->getName();
1159 Selector selector = Mess->getSelector();
1160 if (selector.isUnarySelector()) {
1161 OS << selector.getIdentifierInfoForSlot(0)->getName();
1163 for (unsigned i = 0, e = Mess->getNumArgs(); i != e; ++i) {
1164 if (i < selector.getNumArgs()) {
1165 if (i > 0) OS << ' ';
1166 if (selector.getIdentifierInfoForSlot(i))
1167 OS << selector.getIdentifierInfoForSlot(i)->getName() << ':';
1171 else OS << ", "; // Handle variadic methods.
1173 PrintExpr(Mess->getArg(i));
1179 void StmtPrinter::VisitObjCSuperExpr(ObjCSuperExpr *) {
1183 void StmtPrinter::VisitBlockExpr(BlockExpr *Node) {
1184 BlockDecl *BD = Node->getBlockDecl();
1187 const FunctionType *AFT = Node->getFunctionType();
1189 if (isa<FunctionNoProtoType>(AFT)) {
1191 } else if (!BD->param_empty() || cast<FunctionProtoType>(AFT)->isVariadic()) {
1193 std::string ParamStr;
1194 for (BlockDecl::param_iterator AI = BD->param_begin(),
1195 E = BD->param_end(); AI != E; ++AI) {
1196 if (AI != BD->param_begin()) OS << ", ";
1197 ParamStr = (*AI)->getNameAsString();
1198 (*AI)->getType().getAsStringInternal(ParamStr, Policy);
1202 const FunctionProtoType *FT = cast<FunctionProtoType>(AFT);
1203 if (FT->isVariadic()) {
1204 if (!BD->param_empty()) OS << ", ";
1211 void StmtPrinter::VisitBlockDeclRefExpr(BlockDeclRefExpr *Node) {
1212 OS << Node->getDecl()->getNameAsString();
1214 //===----------------------------------------------------------------------===//
1215 // Stmt method implementations
1216 //===----------------------------------------------------------------------===//
1218 void Stmt::dumpPretty(ASTContext& Context) const {
1219 printPretty(llvm::errs(), Context, 0, PrintingPolicy());
1222 void Stmt::printPretty(llvm::raw_ostream &OS, ASTContext& Context,
1223 PrinterHelper* Helper,
1224 const PrintingPolicy &Policy,
1225 unsigned Indentation) const {
1236 StmtPrinter P(OS, Context, Helper, Policy, Indentation);
1237 P.Visit(const_cast<Stmt*>(this));
1240 //===----------------------------------------------------------------------===//
1242 //===----------------------------------------------------------------------===//
1244 // Implement virtual destructor.
1245 PrinterHelper::~PrinterHelper() {}