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Diffstat (limited to 'clang/lib/AST/StmtPrinter.cpp')
| -rw-r--r-- | clang/lib/AST/StmtPrinter.cpp | 1902 |
1 files changed, 1902 insertions, 0 deletions
diff --git a/clang/lib/AST/StmtPrinter.cpp b/clang/lib/AST/StmtPrinter.cpp new file mode 100644 index 0000000..0d1066b --- /dev/null +++ b/clang/lib/AST/StmtPrinter.cpp @@ -0,0 +1,1902 @@ +//===--- StmtPrinter.cpp - Printing implementation for Stmt ASTs ----------===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// +// This file implements the Stmt::dumpPretty/Stmt::printPretty methods, which +// pretty print the AST back out to C code. +// +//===----------------------------------------------------------------------===// + +#include "clang/AST/StmtVisitor.h" +#include "clang/AST/DeclCXX.h" +#include "clang/AST/DeclObjC.h" +#include "clang/AST/DeclTemplate.h" +#include "clang/AST/PrettyPrinter.h" +#include "clang/AST/Expr.h" +#include "clang/AST/ExprCXX.h" +#include "llvm/ADT/SmallString.h" +using namespace clang; + +//===----------------------------------------------------------------------===// +// StmtPrinter Visitor +//===----------------------------------------------------------------------===// + +namespace { + class StmtPrinter : public StmtVisitor<StmtPrinter> { + raw_ostream &OS; + ASTContext &Context; + unsigned IndentLevel; + clang::PrinterHelper* Helper; + PrintingPolicy Policy; + + public: + StmtPrinter(raw_ostream &os, ASTContext &C, PrinterHelper* helper, + const PrintingPolicy &Policy, + unsigned Indentation = 0) + : OS(os), Context(C), IndentLevel(Indentation), Helper(helper), + Policy(Policy) {} + + void PrintStmt(Stmt *S) { + PrintStmt(S, Policy.Indentation); + } + + void PrintStmt(Stmt *S, int SubIndent) { + IndentLevel += SubIndent; + if (S && isa<Expr>(S)) { + // If this is an expr used in a stmt context, indent and newline it. + Indent(); + Visit(S); + OS << ";\n"; + } else if (S) { + Visit(S); + } else { + Indent() << "<<<NULL STATEMENT>>>\n"; + } + IndentLevel -= SubIndent; + } + + void PrintRawCompoundStmt(CompoundStmt *S); + void PrintRawDecl(Decl *D); + void PrintRawDeclStmt(DeclStmt *S); + void PrintRawIfStmt(IfStmt *If); + void PrintRawCXXCatchStmt(CXXCatchStmt *Catch); + void PrintCallArgs(CallExpr *E); + void PrintRawSEHExceptHandler(SEHExceptStmt *S); + void PrintRawSEHFinallyStmt(SEHFinallyStmt *S); + + void PrintExpr(Expr *E) { + if (E) + Visit(E); + else + OS << "<null expr>"; + } + + raw_ostream &Indent(int Delta = 0) { + for (int i = 0, e = IndentLevel+Delta; i < e; ++i) + OS << " "; + return OS; + } + + void Visit(Stmt* S) { + if (Helper && Helper->handledStmt(S,OS)) + return; + else StmtVisitor<StmtPrinter>::Visit(S); + } + + void VisitStmt(Stmt *Node) LLVM_ATTRIBUTE_UNUSED { + Indent() << "<<unknown stmt type>>\n"; + } + void VisitExpr(Expr *Node) LLVM_ATTRIBUTE_UNUSED { + OS << "<<unknown expr type>>"; + } + void VisitCXXNamedCastExpr(CXXNamedCastExpr *Node); + +#define ABSTRACT_STMT(CLASS) +#define STMT(CLASS, PARENT) \ + void Visit##CLASS(CLASS *Node); +#include "clang/AST/StmtNodes.inc" + }; +} + +//===----------------------------------------------------------------------===// +// Stmt printing methods. +//===----------------------------------------------------------------------===// + +/// PrintRawCompoundStmt - Print a compound stmt without indenting the {, and +/// with no newline after the }. +void StmtPrinter::PrintRawCompoundStmt(CompoundStmt *Node) { + OS << "{\n"; + for (CompoundStmt::body_iterator I = Node->body_begin(), E = Node->body_end(); + I != E; ++I) + PrintStmt(*I); + + Indent() << "}"; +} + +void StmtPrinter::PrintRawDecl(Decl *D) { + D->print(OS, Policy, IndentLevel); +} + +void StmtPrinter::PrintRawDeclStmt(DeclStmt *S) { + DeclStmt::decl_iterator Begin = S->decl_begin(), End = S->decl_end(); + SmallVector<Decl*, 2> Decls; + for ( ; Begin != End; ++Begin) + Decls.push_back(*Begin); + + Decl::printGroup(Decls.data(), Decls.size(), OS, Policy, IndentLevel); +} + +void StmtPrinter::VisitNullStmt(NullStmt *Node) { + Indent() << ";\n"; +} + +void StmtPrinter::VisitDeclStmt(DeclStmt *Node) { + Indent(); + PrintRawDeclStmt(Node); + OS << ";\n"; +} + +void StmtPrinter::VisitCompoundStmt(CompoundStmt *Node) { + Indent(); + PrintRawCompoundStmt(Node); + OS << "\n"; +} + +void StmtPrinter::VisitCaseStmt(CaseStmt *Node) { + Indent(-1) << "case "; + PrintExpr(Node->getLHS()); + if (Node->getRHS()) { + OS << " ... "; + PrintExpr(Node->getRHS()); + } + OS << ":\n"; + + PrintStmt(Node->getSubStmt(), 0); +} + +void StmtPrinter::VisitDefaultStmt(DefaultStmt *Node) { + Indent(-1) << "default:\n"; + PrintStmt(Node->getSubStmt(), 0); +} + +void StmtPrinter::VisitLabelStmt(LabelStmt *Node) { + Indent(-1) << Node->getName() << ":\n"; + PrintStmt(Node->getSubStmt(), 0); +} + +void StmtPrinter::VisitAttributedStmt(AttributedStmt *Node) { + OS << "[["; + bool first = true; + for (AttrVec::const_iterator it = Node->getAttrs().begin(), + end = Node->getAttrs().end(); + it != end; ++it) { + if (!first) { + OS << ", "; + first = false; + } + // TODO: check this + (*it)->printPretty(OS, Context); + } + OS << "]] "; + PrintStmt(Node->getSubStmt(), 0); +} + +void StmtPrinter::PrintRawIfStmt(IfStmt *If) { + OS << "if ("; + PrintExpr(If->getCond()); + OS << ')'; + + if (CompoundStmt *CS = dyn_cast<CompoundStmt>(If->getThen())) { + OS << ' '; + PrintRawCompoundStmt(CS); + OS << (If->getElse() ? ' ' : '\n'); + } else { + OS << '\n'; + PrintStmt(If->getThen()); + if (If->getElse()) Indent(); + } + + if (Stmt *Else = If->getElse()) { + OS << "else"; + + if (CompoundStmt *CS = dyn_cast<CompoundStmt>(Else)) { + OS << ' '; + PrintRawCompoundStmt(CS); + OS << '\n'; + } else if (IfStmt *ElseIf = dyn_cast<IfStmt>(Else)) { + OS << ' '; + PrintRawIfStmt(ElseIf); + } else { + OS << '\n'; + PrintStmt(If->getElse()); + } + } +} + +void StmtPrinter::VisitIfStmt(IfStmt *If) { + Indent(); + PrintRawIfStmt(If); +} + +void StmtPrinter::VisitSwitchStmt(SwitchStmt *Node) { + Indent() << "switch ("; + PrintExpr(Node->getCond()); + OS << ")"; + + // Pretty print compoundstmt bodies (very common). + if (CompoundStmt *CS = dyn_cast<CompoundStmt>(Node->getBody())) { + OS << " "; + PrintRawCompoundStmt(CS); + OS << "\n"; + } else { + OS << "\n"; + PrintStmt(Node->getBody()); + } +} + +void StmtPrinter::VisitWhileStmt(WhileStmt *Node) { + Indent() << "while ("; + PrintExpr(Node->getCond()); + OS << ")\n"; + PrintStmt(Node->getBody()); +} + +void StmtPrinter::VisitDoStmt(DoStmt *Node) { + Indent() << "do "; + if (CompoundStmt *CS = dyn_cast<CompoundStmt>(Node->getBody())) { + PrintRawCompoundStmt(CS); + OS << " "; + } else { + OS << "\n"; + PrintStmt(Node->getBody()); + Indent(); + } + + OS << "while ("; + PrintExpr(Node->getCond()); + OS << ");\n"; +} + +void StmtPrinter::VisitForStmt(ForStmt *Node) { + Indent() << "for ("; + if (Node->getInit()) { + if (DeclStmt *DS = dyn_cast<DeclStmt>(Node->getInit())) + PrintRawDeclStmt(DS); + else + PrintExpr(cast<Expr>(Node->getInit())); + } + OS << ";"; + if (Node->getCond()) { + OS << " "; + PrintExpr(Node->getCond()); + } + OS << ";"; + if (Node->getInc()) { + OS << " "; + PrintExpr(Node->getInc()); + } + OS << ") "; + + if (CompoundStmt *CS = dyn_cast<CompoundStmt>(Node->getBody())) { + PrintRawCompoundStmt(CS); + OS << "\n"; + } else { + OS << "\n"; + PrintStmt(Node->getBody()); + } +} + +void StmtPrinter::VisitObjCForCollectionStmt(ObjCForCollectionStmt *Node) { + Indent() << "for ("; + if (DeclStmt *DS = dyn_cast<DeclStmt>(Node->getElement())) + PrintRawDeclStmt(DS); + else + PrintExpr(cast<Expr>(Node->getElement())); + OS << " in "; + PrintExpr(Node->getCollection()); + OS << ") "; + + if (CompoundStmt *CS = dyn_cast<CompoundStmt>(Node->getBody())) { + PrintRawCompoundStmt(CS); + OS << "\n"; + } else { + OS << "\n"; + PrintStmt(Node->getBody()); + } +} + +void StmtPrinter::VisitCXXForRangeStmt(CXXForRangeStmt *Node) { + Indent() << "for ("; + PrintingPolicy SubPolicy(Policy); + SubPolicy.SuppressInitializers = true; + Node->getLoopVariable()->print(OS, SubPolicy, IndentLevel); + OS << " : "; + PrintExpr(Node->getRangeInit()); + OS << ") {\n"; + PrintStmt(Node->getBody()); + Indent() << "}\n"; +} + +void StmtPrinter::VisitMSDependentExistsStmt(MSDependentExistsStmt *Node) { + Indent(); + if (Node->isIfExists()) + OS << "__if_exists ("; + else + OS << "__if_not_exists ("; + + if (NestedNameSpecifier *Qualifier + = Node->getQualifierLoc().getNestedNameSpecifier()) + Qualifier->print(OS, Policy); + + OS << Node->getNameInfo() << ") "; + + PrintRawCompoundStmt(Node->getSubStmt()); +} + +void StmtPrinter::VisitGotoStmt(GotoStmt *Node) { + Indent() << "goto " << Node->getLabel()->getName() << ";\n"; +} + +void StmtPrinter::VisitIndirectGotoStmt(IndirectGotoStmt *Node) { + Indent() << "goto *"; + PrintExpr(Node->getTarget()); + OS << ";\n"; +} + +void StmtPrinter::VisitContinueStmt(ContinueStmt *Node) { + Indent() << "continue;\n"; +} + +void StmtPrinter::VisitBreakStmt(BreakStmt *Node) { + Indent() << "break;\n"; +} + + +void StmtPrinter::VisitReturnStmt(ReturnStmt *Node) { + Indent() << "return"; + if (Node->getRetValue()) { + OS << " "; + PrintExpr(Node->getRetValue()); + } + OS << ";\n"; +} + + +void StmtPrinter::VisitAsmStmt(AsmStmt *Node) { + Indent() << "asm "; + + if (Node->isVolatile()) + OS << "volatile "; + + OS << "("; + VisitStringLiteral(Node->getAsmString()); + + // Outputs + if (Node->getNumOutputs() != 0 || Node->getNumInputs() != 0 || + Node->getNumClobbers() != 0) + OS << " : "; + + for (unsigned i = 0, e = Node->getNumOutputs(); i != e; ++i) { + if (i != 0) + OS << ", "; + + if (!Node->getOutputName(i).empty()) { + OS << '['; + OS << Node->getOutputName(i); + OS << "] "; + } + + VisitStringLiteral(Node->getOutputConstraintLiteral(i)); + OS << " "; + Visit(Node->getOutputExpr(i)); + } + + // Inputs + if (Node->getNumInputs() != 0 || Node->getNumClobbers() != 0) + OS << " : "; + + for (unsigned i = 0, e = Node->getNumInputs(); i != e; ++i) { + if (i != 0) + OS << ", "; + + if (!Node->getInputName(i).empty()) { + OS << '['; + OS << Node->getInputName(i); + OS << "] "; + } + + VisitStringLiteral(Node->getInputConstraintLiteral(i)); + OS << " "; + Visit(Node->getInputExpr(i)); + } + + // Clobbers + if (Node->getNumClobbers() != 0) + OS << " : "; + + for (unsigned i = 0, e = Node->getNumClobbers(); i != e; ++i) { + if (i != 0) + OS << ", "; + + VisitStringLiteral(Node->getClobber(i)); + } + + OS << ");\n"; +} + +void StmtPrinter::VisitObjCAtTryStmt(ObjCAtTryStmt *Node) { + Indent() << "@try"; + if (CompoundStmt *TS = dyn_cast<CompoundStmt>(Node->getTryBody())) { + PrintRawCompoundStmt(TS); + OS << "\n"; + } + + for (unsigned I = 0, N = Node->getNumCatchStmts(); I != N; ++I) { + ObjCAtCatchStmt *catchStmt = Node->getCatchStmt(I); + Indent() << "@catch("; + if (catchStmt->getCatchParamDecl()) { + if (Decl *DS = catchStmt->getCatchParamDecl()) + PrintRawDecl(DS); + } + OS << ")"; + if (CompoundStmt *CS = dyn_cast<CompoundStmt>(catchStmt->getCatchBody())) { + PrintRawCompoundStmt(CS); + OS << "\n"; + } + } + + if (ObjCAtFinallyStmt *FS = static_cast<ObjCAtFinallyStmt *>( + Node->getFinallyStmt())) { + Indent() << "@finally"; + PrintRawCompoundStmt(dyn_cast<CompoundStmt>(FS->getFinallyBody())); + OS << "\n"; + } +} + +void StmtPrinter::VisitObjCAtFinallyStmt(ObjCAtFinallyStmt *Node) { +} + +void StmtPrinter::VisitObjCAtCatchStmt (ObjCAtCatchStmt *Node) { + Indent() << "@catch (...) { /* todo */ } \n"; +} + +void StmtPrinter::VisitObjCAtThrowStmt(ObjCAtThrowStmt *Node) { + Indent() << "@throw"; + if (Node->getThrowExpr()) { + OS << " "; + PrintExpr(Node->getThrowExpr()); + } + OS << ";\n"; +} + +void StmtPrinter::VisitObjCAtSynchronizedStmt(ObjCAtSynchronizedStmt *Node) { + Indent() << "@synchronized ("; + PrintExpr(Node->getSynchExpr()); + OS << ")"; + PrintRawCompoundStmt(Node->getSynchBody()); + OS << "\n"; +} + +void StmtPrinter::VisitObjCAutoreleasePoolStmt(ObjCAutoreleasePoolStmt *Node) { + Indent() << "@autoreleasepool"; + PrintRawCompoundStmt(dyn_cast<CompoundStmt>(Node->getSubStmt())); + OS << "\n"; +} + +void StmtPrinter::PrintRawCXXCatchStmt(CXXCatchStmt *Node) { + OS << "catch ("; + if (Decl *ExDecl = Node->getExceptionDecl()) + PrintRawDecl(ExDecl); + else + OS << "..."; + OS << ") "; + PrintRawCompoundStmt(cast<CompoundStmt>(Node->getHandlerBlock())); +} + +void StmtPrinter::VisitCXXCatchStmt(CXXCatchStmt *Node) { + Indent(); + PrintRawCXXCatchStmt(Node); + OS << "\n"; +} + +void StmtPrinter::VisitCXXTryStmt(CXXTryStmt *Node) { + Indent() << "try "; + PrintRawCompoundStmt(Node->getTryBlock()); + for (unsigned i = 0, e = Node->getNumHandlers(); i < e; ++i) { + OS << " "; + PrintRawCXXCatchStmt(Node->getHandler(i)); + } + OS << "\n"; +} + +void StmtPrinter::VisitSEHTryStmt(SEHTryStmt *Node) { + Indent() << (Node->getIsCXXTry() ? "try " : "__try "); + PrintRawCompoundStmt(Node->getTryBlock()); + SEHExceptStmt *E = Node->getExceptHandler(); + SEHFinallyStmt *F = Node->getFinallyHandler(); + if(E) + PrintRawSEHExceptHandler(E); + else { + assert(F && "Must have a finally block..."); + PrintRawSEHFinallyStmt(F); + } + OS << "\n"; +} + +void StmtPrinter::PrintRawSEHFinallyStmt(SEHFinallyStmt *Node) { + OS << "__finally "; + PrintRawCompoundStmt(Node->getBlock()); + OS << "\n"; +} + +void StmtPrinter::PrintRawSEHExceptHandler(SEHExceptStmt *Node) { + OS << "__except ("; + VisitExpr(Node->getFilterExpr()); + OS << ")\n"; + PrintRawCompoundStmt(Node->getBlock()); + OS << "\n"; +} + +void StmtPrinter::VisitSEHExceptStmt(SEHExceptStmt *Node) { + Indent(); + PrintRawSEHExceptHandler(Node); + OS << "\n"; +} + +void StmtPrinter::VisitSEHFinallyStmt(SEHFinallyStmt *Node) { + Indent(); + PrintRawSEHFinallyStmt(Node); + OS << "\n"; +} + +//===----------------------------------------------------------------------===// +// Expr printing methods. +//===----------------------------------------------------------------------===// + +void StmtPrinter::VisitDeclRefExpr(DeclRefExpr *Node) { + if (NestedNameSpecifier *Qualifier = Node->getQualifier()) + Qualifier->print(OS, Policy); + if (Node->hasTemplateKeyword()) + OS << "template "; + OS << Node->getNameInfo(); + if (Node->hasExplicitTemplateArgs()) + OS << TemplateSpecializationType::PrintTemplateArgumentList( + Node->getTemplateArgs(), + Node->getNumTemplateArgs(), + Policy); +} + +void StmtPrinter::VisitDependentScopeDeclRefExpr( + DependentScopeDeclRefExpr *Node) { + if (NestedNameSpecifier *Qualifier = Node->getQualifier()) + Qualifier->print(OS, Policy); + if (Node->hasTemplateKeyword()) + OS << "template "; + OS << Node->getNameInfo(); + if (Node->hasExplicitTemplateArgs()) + OS << TemplateSpecializationType::PrintTemplateArgumentList( + Node->getTemplateArgs(), + Node->getNumTemplateArgs(), + Policy); +} + +void StmtPrinter::VisitUnresolvedLookupExpr(UnresolvedLookupExpr *Node) { + if (Node->getQualifier()) + Node->getQualifier()->print(OS, Policy); + if (Node->hasTemplateKeyword()) + OS << "template "; + OS << Node->getNameInfo(); + if (Node->hasExplicitTemplateArgs()) + OS << TemplateSpecializationType::PrintTemplateArgumentList( + Node->getTemplateArgs(), + Node->getNumTemplateArgs(), + Policy); +} + +void StmtPrinter::VisitObjCIvarRefExpr(ObjCIvarRefExpr *Node) { + if (Node->getBase()) { + PrintExpr(Node->getBase()); + OS << (Node->isArrow() ? "->" : "."); + } + OS << *Node->getDecl(); +} + +void StmtPrinter::VisitObjCPropertyRefExpr(ObjCPropertyRefExpr *Node) { + if (Node->isSuperReceiver()) + OS << "super."; + else if (Node->getBase()) { + PrintExpr(Node->getBase()); + OS << "."; + } + + if (Node->isImplicitProperty()) + OS << Node->getImplicitPropertyGetter()->getSelector().getAsString(); + else + OS << Node->getExplicitProperty()->getName(); +} + +void StmtPrinter::VisitObjCSubscriptRefExpr(ObjCSubscriptRefExpr *Node) { + + PrintExpr(Node->getBaseExpr()); + OS << "["; + PrintExpr(Node->getKeyExpr()); + OS << "]"; +} + +void StmtPrinter::VisitPredefinedExpr(PredefinedExpr *Node) { + switch (Node->getIdentType()) { + default: + llvm_unreachable("unknown case"); + case PredefinedExpr::Func: + OS << "__func__"; + break; + case PredefinedExpr::Function: + OS << "__FUNCTION__"; + break; + case PredefinedExpr::PrettyFunction: + OS << "__PRETTY_FUNCTION__"; + break; + } +} + +void StmtPrinter::VisitCharacterLiteral(CharacterLiteral *Node) { + unsigned value = Node->getValue(); + + switch (Node->getKind()) { + case CharacterLiteral::Ascii: break; // no prefix. + case CharacterLiteral::Wide: OS << 'L'; break; + case CharacterLiteral::UTF16: OS << 'u'; break; + case CharacterLiteral::UTF32: OS << 'U'; break; + } + + switch (value) { + case '\\': + OS << "'\\\\'"; + break; + case '\'': + OS << "'\\''"; + break; + case '\a': + // TODO: K&R: the meaning of '\\a' is different in traditional C + OS << "'\\a'"; + break; + case '\b': + OS << "'\\b'"; + break; + // Nonstandard escape sequence. + /*case '\e': + OS << "'\\e'"; + break;*/ + case '\f': + OS << "'\\f'"; + break; + case '\n': + OS << "'\\n'"; + break; + case '\r': + OS << "'\\r'"; + break; + case '\t': + OS << "'\\t'"; + break; + case '\v': + OS << "'\\v'"; + break; + default: + if (value < 256 && isprint(value)) { + OS << "'" << (char)value << "'"; + } else if (value < 256) { + OS << "'\\x"; + OS.write_hex(value) << "'"; + } else { + // FIXME what to really do here? + OS << value; + } + } +} + +void StmtPrinter::VisitIntegerLiteral(IntegerLiteral *Node) { + bool isSigned = Node->getType()->isSignedIntegerType(); + OS << Node->getValue().toString(10, isSigned); + + // Emit suffixes. Integer literals are always a builtin integer type. + switch (Node->getType()->getAs<BuiltinType>()->getKind()) { + default: llvm_unreachable("Unexpected type for integer literal!"); + // FIXME: The Short and UShort cases are to handle cases where a short + // integeral literal is formed during template instantiation. They should + // be removed when template instantiation no longer needs integer literals. + case BuiltinType::Short: + case BuiltinType::UShort: + case BuiltinType::Int: break; // no suffix. + case BuiltinType::UInt: OS << 'U'; break; + case BuiltinType::Long: OS << 'L'; break; + case BuiltinType::ULong: OS << "UL"; break; + case BuiltinType::LongLong: OS << "LL"; break; + case BuiltinType::ULongLong: OS << "ULL"; break; + case BuiltinType::Int128: OS << "i128"; break; + case BuiltinType::UInt128: OS << "Ui128"; break; + } +} +void StmtPrinter::VisitFloatingLiteral(FloatingLiteral *Node) { + SmallString<16> Str; + Node->getValue().toString(Str); + OS << Str; +} + +void StmtPrinter::VisitImaginaryLiteral(ImaginaryLiteral *Node) { + PrintExpr(Node->getSubExpr()); + OS << "i"; +} + +void StmtPrinter::VisitStringLiteral(StringLiteral *Str) { + switch (Str->getKind()) { + case StringLiteral::Ascii: break; // no prefix. + case StringLiteral::Wide: OS << 'L'; break; + case StringLiteral::UTF8: OS << "u8"; break; + case StringLiteral::UTF16: OS << 'u'; break; + case StringLiteral::UTF32: OS << 'U'; break; + } + OS << '"'; + static char Hex[] = "0123456789ABCDEF"; + + unsigned LastSlashX = Str->getLength(); + for (unsigned I = 0, N = Str->getLength(); I != N; ++I) { + switch (uint32_t Char = Str->getCodeUnit(I)) { + default: + // FIXME: Convert UTF-8 back to codepoints before rendering. + + // Convert UTF-16 surrogate pairs back to codepoints before rendering. + // Leave invalid surrogates alone; we'll use \x for those. + if (Str->getKind() == StringLiteral::UTF16 && I != N - 1 && + Char >= 0xd800 && Char <= 0xdbff) { + uint32_t Trail = Str->getCodeUnit(I + 1); + if (Trail >= 0xdc00 && Trail <= 0xdfff) { + Char = 0x10000 + ((Char - 0xd800) << 10) + (Trail - 0xdc00); + ++I; + } + } + + if (Char > 0xff) { + // If this is a wide string, output characters over 0xff using \x + // escapes. Otherwise, this is a UTF-16 or UTF-32 string, and Char is a + // codepoint: use \x escapes for invalid codepoints. + if (Str->getKind() == StringLiteral::Wide || + (Char >= 0xd800 && Char <= 0xdfff) || Char >= 0x110000) { + // FIXME: Is this the best way to print wchar_t? + OS << "\\x"; + int Shift = 28; + while ((Char >> Shift) == 0) + Shift -= 4; + for (/**/; Shift >= 0; Shift -= 4) + OS << Hex[(Char >> Shift) & 15]; + LastSlashX = I; + break; + } + + if (Char > 0xffff) + OS << "\\U00" + << Hex[(Char >> 20) & 15] + << Hex[(Char >> 16) & 15]; + else + OS << "\\u"; + OS << Hex[(Char >> 12) & 15] + << Hex[(Char >> 8) & 15] + << Hex[(Char >> 4) & 15] + << Hex[(Char >> 0) & 15]; + break; + } + + // If we used \x... for the previous character, and this character is a + // hexadecimal digit, prevent it being slurped as part of the \x. + if (LastSlashX + 1 == I) { + switch (Char) { + case '0': case '1': case '2': case '3': case '4': + case '5': case '6': case '7': case '8': case '9': + case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': + case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': + OS << "\"\""; + } + } + + if (Char <= 0xff && isprint(Char)) + OS << (char)Char; + else // Output anything hard as an octal escape. + OS << '\\' + << (char)('0' + ((Char >> 6) & 7)) + << (char)('0' + ((Char >> 3) & 7)) + << (char)('0' + ((Char >> 0) & 7)); + break; + // Handle some common non-printable cases to make dumps prettier. + case '\\': OS << "\\\\"; break; + case '"': OS << "\\\""; break; + case '\n': OS << "\\n"; break; + case '\t': OS << "\\t"; break; + case '\a': OS << "\\a"; break; + case '\b': OS << "\\b"; break; + } + } + OS << '"'; +} +void StmtPrinter::VisitParenExpr(ParenExpr *Node) { + OS << "("; + PrintExpr(Node->getSubExpr()); + OS << ")"; +} +void StmtPrinter::VisitUnaryOperator(UnaryOperator *Node) { + if (!Node->isPostfix()) { + OS << UnaryOperator::getOpcodeStr(Node->getOpcode()); + + // Print a space if this is an "identifier operator" like __real, or if + // it might be concatenated incorrectly like '+'. + switch (Node->getOpcode()) { + default: break; + case UO_Real: + case UO_Imag: + case UO_Extension: + OS << ' '; + break; + case UO_Plus: + case UO_Minus: + if (isa<UnaryOperator>(Node->getSubExpr())) + OS << ' '; + break; + } + } + PrintExpr(Node->getSubExpr()); + + if (Node->isPostfix()) + OS << UnaryOperator::getOpcodeStr(Node->getOpcode()); +} + +void StmtPrinter::VisitOffsetOfExpr(OffsetOfExpr *Node) { + OS << "__builtin_offsetof("; + OS << Node->getTypeSourceInfo()->getType().getAsString(Policy) << ", "; + bool PrintedSomething = false; + for (unsigned i = 0, n = Node->getNumComponents(); i < n; ++i) { + OffsetOfExpr::OffsetOfNode ON = Node->getComponent(i); + if (ON.getKind() == OffsetOfExpr::OffsetOfNode::Array) { + // Array node + OS << "["; + PrintExpr(Node->getIndexExpr(ON.getArrayExprIndex())); + OS << "]"; + PrintedSomething = true; + continue; + } + + // Skip implicit base indirections. + if (ON.getKind() == OffsetOfExpr::OffsetOfNode::Base) + continue; + + // Field or identifier node. + IdentifierInfo *Id = ON.getFieldName(); + if (!Id) + continue; + + if (PrintedSomething) + OS << "."; + else + PrintedSomething = true; + OS << Id->getName(); + } + OS << ")"; +} + +void StmtPrinter::VisitUnaryExprOrTypeTraitExpr(UnaryExprOrTypeTraitExpr *Node){ + switch(Node->getKind()) { + case UETT_SizeOf: + OS << "sizeof"; + break; + case UETT_AlignOf: + OS << "__alignof"; + break; + case UETT_VecStep: + OS << "vec_step"; + break; + } + if (Node->isArgumentType()) + OS << "(" << Node->getArgumentType().getAsString(Policy) << ")"; + else { + OS << " "; + PrintExpr(Node->getArgumentExpr()); + } +} + +void StmtPrinter::VisitGenericSelectionExpr(GenericSelectionExpr *Node) { + OS << "_Generic("; + PrintExpr(Node->getControllingExpr()); + for (unsigned i = 0; i != Node->getNumAssocs(); ++i) { + OS << ", "; + QualType T = Node->getAssocType(i); + if (T.isNull()) + OS << "default"; + else + OS << T.getAsString(Policy); + OS << ": "; + PrintExpr(Node->getAssocExpr(i)); + } + OS << ")"; +} + +void StmtPrinter::VisitArraySubscriptExpr(ArraySubscriptExpr *Node) { + PrintExpr(Node->getLHS()); + OS << "["; + PrintExpr(Node->getRHS()); + OS << "]"; +} + +void StmtPrinter::PrintCallArgs(CallExpr *Call) { + for (unsigned i = 0, e = Call->getNumArgs(); i != e; ++i) { + if (isa<CXXDefaultArgExpr>(Call->getArg(i))) { + // Don't print any defaulted arguments + break; + } + + if (i) OS << ", "; + PrintExpr(Call->getArg(i)); + } +} + +void StmtPrinter::VisitCallExpr(CallExpr *Call) { + PrintExpr(Call->getCallee()); + OS << "("; + PrintCallArgs(Call); + OS << ")"; +} +void StmtPrinter::VisitMemberExpr(MemberExpr *Node) { + // FIXME: Suppress printing implicit bases (like "this") + PrintExpr(Node->getBase()); + if (FieldDecl *FD = dyn_cast<FieldDecl>(Node->getMemberDecl())) + if (FD->isAnonymousStructOrUnion()) + return; + OS << (Node->isArrow() ? "->" : "."); + if (NestedNameSpecifier *Qualifier = Node->getQualifier()) + Qualifier->print(OS, Policy); + if (Node->hasTemplateKeyword()) + OS << "template "; + OS << Node->getMemberNameInfo(); + if (Node->hasExplicitTemplateArgs()) + OS << TemplateSpecializationType::PrintTemplateArgumentList( + Node->getTemplateArgs(), + Node->getNumTemplateArgs(), + Policy); +} +void StmtPrinter::VisitObjCIsaExpr(ObjCIsaExpr *Node) { + PrintExpr(Node->getBase()); + OS << (Node->isArrow() ? "->isa" : ".isa"); +} + +void StmtPrinter::VisitExtVectorElementExpr(ExtVectorElementExpr *Node) { + PrintExpr(Node->getBase()); + OS << "."; + OS << Node->getAccessor().getName(); +} +void StmtPrinter::VisitCStyleCastExpr(CStyleCastExpr *Node) { + OS << "(" << Node->getType().getAsString(Policy) << ")"; + PrintExpr(Node->getSubExpr()); +} +void StmtPrinter::VisitCompoundLiteralExpr(CompoundLiteralExpr *Node) { + OS << "(" << Node->getType().getAsString(Policy) << ")"; + PrintExpr(Node->getInitializer()); +} +void StmtPrinter::VisitImplicitCastExpr(ImplicitCastExpr *Node) { + // No need to print anything, simply forward to the sub expression. + PrintExpr(Node->getSubExpr()); +} +void StmtPrinter::VisitBinaryOperator(BinaryOperator *Node) { + PrintExpr(Node->getLHS()); + OS << " " << BinaryOperator::getOpcodeStr(Node->getOpcode()) << " "; + PrintExpr(Node->getRHS()); +} +void StmtPrinter::VisitCompoundAssignOperator(CompoundAssignOperator *Node) { + PrintExpr(Node->getLHS()); + OS << " " << BinaryOperator::getOpcodeStr(Node->getOpcode()) << " "; + PrintExpr(Node->getRHS()); +} +void StmtPrinter::VisitConditionalOperator(ConditionalOperator *Node) { + PrintExpr(Node->getCond()); + OS << " ? "; + PrintExpr(Node->getLHS()); + OS << " : "; + PrintExpr(Node->getRHS()); +} + +// GNU extensions. + +void +StmtPrinter::VisitBinaryConditionalOperator(BinaryConditionalOperator *Node) { + PrintExpr(Node->getCommon()); + OS << " ?: "; + PrintExpr(Node->getFalseExpr()); +} +void StmtPrinter::VisitAddrLabelExpr(AddrLabelExpr *Node) { + OS << "&&" << Node->getLabel()->getName(); +} + +void StmtPrinter::VisitStmtExpr(StmtExpr *E) { + OS << "("; + PrintRawCompoundStmt(E->getSubStmt()); + OS << ")"; +} + +void StmtPrinter::VisitChooseExpr(ChooseExpr *Node) { + OS << "__builtin_choose_expr("; + PrintExpr(Node->getCond()); + OS << ", "; + PrintExpr(Node->getLHS()); + OS << ", "; + PrintExpr(Node->getRHS()); + OS << ")"; +} + +void StmtPrinter::VisitGNUNullExpr(GNUNullExpr *) { + OS << "__null"; +} + +void StmtPrinter::VisitShuffleVectorExpr(ShuffleVectorExpr *Node) { + OS << "__builtin_shufflevector("; + for (unsigned i = 0, e = Node->getNumSubExprs(); i != e; ++i) { + if (i) OS << ", "; + PrintExpr(Node->getExpr(i)); + } + OS << ")"; +} + +void StmtPrinter::VisitInitListExpr(InitListExpr* Node) { + if (Node->getSyntacticForm()) { + Visit(Node->getSyntacticForm()); + return; + } + + OS << "{ "; + for (unsigned i = 0, e = Node->getNumInits(); i != e; ++i) { + if (i) OS << ", "; + if (Node->getInit(i)) + PrintExpr(Node->getInit(i)); + else + OS << "0"; + } + OS << " }"; +} + +void StmtPrinter::VisitParenListExpr(ParenListExpr* Node) { + OS << "( "; + for (unsigned i = 0, e = Node->getNumExprs(); i != e; ++i) { + if (i) OS << ", "; + PrintExpr(Node->getExpr(i)); + } + OS << " )"; +} + +void StmtPrinter::VisitDesignatedInitExpr(DesignatedInitExpr *Node) { + for (DesignatedInitExpr::designators_iterator D = Node->designators_begin(), + DEnd = Node->designators_end(); + D != DEnd; ++D) { + if (D->isFieldDesignator()) { + if (D->getDotLoc().isInvalid()) + OS << D->getFieldName()->getName() << ":"; + else + OS << "." << D->getFieldName()->getName(); + } else { + OS << "["; + if (D->isArrayDesignator()) { + PrintExpr(Node->getArrayIndex(*D)); + } else { + PrintExpr(Node->getArrayRangeStart(*D)); + OS << " ... "; + PrintExpr(Node->getArrayRangeEnd(*D)); + } + OS << "]"; + } + } + + OS << " = "; + PrintExpr(Node->getInit()); +} + +void StmtPrinter::VisitImplicitValueInitExpr(ImplicitValueInitExpr *Node) { + if (Policy.LangOpts.CPlusPlus) + OS << "/*implicit*/" << Node->getType().getAsString(Policy) << "()"; + else { + OS << "/*implicit*/(" << Node->getType().getAsString(Policy) << ")"; + if (Node->getType()->isRecordType()) + OS << "{}"; + else + OS << 0; + } +} + +void StmtPrinter::VisitVAArgExpr(VAArgExpr *Node) { + OS << "__builtin_va_arg("; + PrintExpr(Node->getSubExpr()); + OS << ", "; + OS << Node->getType().getAsString(Policy); + OS << ")"; +} + +void StmtPrinter::VisitPseudoObjectExpr(PseudoObjectExpr *Node) { + PrintExpr(Node->getSyntacticForm()); +} + +void StmtPrinter::VisitAtomicExpr(AtomicExpr *Node) { + const char *Name = 0; + switch (Node->getOp()) { +#define BUILTIN(ID, TYPE, ATTRS) +#define ATOMIC_BUILTIN(ID, TYPE, ATTRS) \ + case AtomicExpr::AO ## ID: \ + Name = #ID "("; \ + break; +#include "clang/Basic/Builtins.def" + } + OS << Name; + + // AtomicExpr stores its subexpressions in a permuted order. + PrintExpr(Node->getPtr()); + OS << ", "; + if (Node->getOp() != AtomicExpr::AO__c11_atomic_load && + Node->getOp() != AtomicExpr::AO__atomic_load_n) { + PrintExpr(Node->getVal1()); + OS << ", "; + } + if (Node->getOp() == AtomicExpr::AO__atomic_exchange || + Node->isCmpXChg()) { + PrintExpr(Node->getVal2()); + OS << ", "; + } + if (Node->getOp() == AtomicExpr::AO__atomic_compare_exchange || + Node->getOp() == AtomicExpr::AO__atomic_compare_exchange_n) { + PrintExpr(Node->getWeak()); + OS << ", "; + } + if (Node->getOp() != AtomicExpr::AO__c11_atomic_init) + PrintExpr(Node->getOrder()); + if (Node->isCmpXChg()) { + OS << ", "; + PrintExpr(Node->getOrderFail()); + } + OS << ")"; +} + +// C++ +void StmtPrinter::VisitCXXOperatorCallExpr(CXXOperatorCallExpr *Node) { + const char *OpStrings[NUM_OVERLOADED_OPERATORS] = { + "", +#define OVERLOADED_OPERATOR(Name,Spelling,Token,Unary,Binary,MemberOnly) \ + Spelling, +#include "clang/Basic/OperatorKinds.def" + }; + + OverloadedOperatorKind Kind = Node->getOperator(); + if (Kind == OO_PlusPlus || Kind == OO_MinusMinus) { + if (Node->getNumArgs() == 1) { + OS << OpStrings[Kind] << ' '; + PrintExpr(Node->getArg(0)); + } else { + PrintExpr(Node->getArg(0)); + OS << ' ' << OpStrings[Kind]; + } + } else if (Kind == OO_Call) { + PrintExpr(Node->getArg(0)); + OS << '('; + for (unsigned ArgIdx = 1; ArgIdx < Node->getNumArgs(); ++ArgIdx) { + if (ArgIdx > 1) + OS << ", "; + if (!isa<CXXDefaultArgExpr>(Node->getArg(ArgIdx))) + PrintExpr(Node->getArg(ArgIdx)); + } + OS << ')'; + } else if (Kind == OO_Subscript) { + PrintExpr(Node->getArg(0)); + OS << '['; + PrintExpr(Node->getArg(1)); + OS << ']'; + } else if (Node->getNumArgs() == 1) { + OS << OpStrings[Kind] << ' '; + PrintExpr(Node->getArg(0)); + } else if (Node->getNumArgs() == 2) { + PrintExpr(Node->getArg(0)); + OS << ' ' << OpStrings[Kind] << ' '; + PrintExpr(Node->getArg(1)); + } else { + llvm_unreachable("unknown overloaded operator"); + } +} + +void StmtPrinter::VisitCXXMemberCallExpr(CXXMemberCallExpr *Node) { + VisitCallExpr(cast<CallExpr>(Node)); +} + +void StmtPrinter::VisitCUDAKernelCallExpr(CUDAKernelCallExpr *Node) { + PrintExpr(Node->getCallee()); + OS << "<<<"; + PrintCallArgs(Node->getConfig()); + OS << ">>>("; + PrintCallArgs(Node); + OS << ")"; +} + +void StmtPrinter::VisitCXXNamedCastExpr(CXXNamedCastExpr *Node) { + OS << Node->getCastName() << '<'; + OS << Node->getTypeAsWritten().getAsString(Policy) << ">("; + PrintExpr(Node->getSubExpr()); + OS << ")"; +} + +void StmtPrinter::VisitCXXStaticCastExpr(CXXStaticCastExpr *Node) { + VisitCXXNamedCastExpr(Node); +} + +void StmtPrinter::VisitCXXDynamicCastExpr(CXXDynamicCastExpr *Node) { + VisitCXXNamedCastExpr(Node); +} + +void StmtPrinter::VisitCXXReinterpretCastExpr(CXXReinterpretCastExpr *Node) { + VisitCXXNamedCastExpr(Node); +} + +void StmtPrinter::VisitCXXConstCastExpr(CXXConstCastExpr *Node) { + VisitCXXNamedCastExpr(Node); +} + +void StmtPrinter::VisitCXXTypeidExpr(CXXTypeidExpr *Node) { + OS << "typeid("; + if (Node->isTypeOperand()) { + OS << Node->getTypeOperand().getAsString(Policy); + } else { + PrintExpr(Node->getExprOperand()); + } + OS << ")"; +} + +void StmtPrinter::VisitCXXUuidofExpr(CXXUuidofExpr *Node) { + OS << "__uuidof("; + if (Node->isTypeOperand()) { + OS << Node->getTypeOperand().getAsString(Policy); + } else { + PrintExpr(Node->getExprOperand()); + } + OS << ")"; +} + +void StmtPrinter::VisitUserDefinedLiteral(UserDefinedLiteral *Node) { + switch (Node->getLiteralOperatorKind()) { + case UserDefinedLiteral::LOK_Raw: + OS << cast<StringLiteral>(Node->getArg(0)->IgnoreImpCasts())->getString(); + break; + case UserDefinedLiteral::LOK_Template: { + DeclRefExpr *DRE = cast<DeclRefExpr>(Node->getCallee()->IgnoreImpCasts()); + const TemplateArgumentList *Args = + cast<FunctionDecl>(DRE->getDecl())->getTemplateSpecializationArgs(); + assert(Args); + const TemplateArgument &Pack = Args->get(0); + for (TemplateArgument::pack_iterator I = Pack.pack_begin(), + E = Pack.pack_end(); I != E; ++I) { + char C = (char)I->getAsIntegral()->getZExtValue(); + OS << C; + } + break; + } + case UserDefinedLiteral::LOK_Integer: { + // Print integer literal without suffix. + IntegerLiteral *Int = cast<IntegerLiteral>(Node->getCookedLiteral()); + OS << Int->getValue().toString(10, /*isSigned*/false); + break; + } + case UserDefinedLiteral::LOK_Floating: + case UserDefinedLiteral::LOK_String: + case UserDefinedLiteral::LOK_Character: + PrintExpr(Node->getCookedLiteral()); + break; + } + OS << Node->getUDSuffix()->getName(); +} + +void StmtPrinter::VisitCXXBoolLiteralExpr(CXXBoolLiteralExpr *Node) { + OS << (Node->getValue() ? "true" : "false"); +} + +void StmtPrinter::VisitCXXNullPtrLiteralExpr(CXXNullPtrLiteralExpr *Node) { + OS << "nullptr"; +} + +void StmtPrinter::VisitCXXThisExpr(CXXThisExpr *Node) { + OS << "this"; +} + +void StmtPrinter::VisitCXXThrowExpr(CXXThrowExpr *Node) { + if (Node->getSubExpr() == 0) + OS << "throw"; + else { + OS << "throw "; + PrintExpr(Node->getSubExpr()); + } +} + +void StmtPrinter::VisitCXXDefaultArgExpr(CXXDefaultArgExpr *Node) { + // Nothing to print: we picked up the default argument +} + +void StmtPrinter::VisitCXXFunctionalCastExpr(CXXFunctionalCastExpr *Node) { + OS << Node->getType().getAsString(Policy); + OS << "("; + PrintExpr(Node->getSubExpr()); + OS << ")"; +} + +void StmtPrinter::VisitCXXBindTemporaryExpr(CXXBindTemporaryExpr *Node) { + PrintExpr(Node->getSubExpr()); +} + +void StmtPrinter::VisitCXXTemporaryObjectExpr(CXXTemporaryObjectExpr *Node) { + OS << Node->getType().getAsString(Policy); + OS << "("; + for (CXXTemporaryObjectExpr::arg_iterator Arg = Node->arg_begin(), + ArgEnd = Node->arg_end(); + Arg != ArgEnd; ++Arg) { + if (Arg != Node->arg_begin()) + OS << ", "; + PrintExpr(*Arg); + } + OS << ")"; +} + +void StmtPrinter::VisitLambdaExpr(LambdaExpr *Node) { + OS << '['; + bool NeedComma = false; + switch (Node->getCaptureDefault()) { + case LCD_None: + break; + + case LCD_ByCopy: + OS << '='; + NeedComma = true; + break; + + case LCD_ByRef: + OS << '&'; + NeedComma = true; + break; + } + for (LambdaExpr::capture_iterator C = Node->explicit_capture_begin(), + CEnd = Node->explicit_capture_end(); + C != CEnd; + ++C) { + if (NeedComma) + OS << ", "; + NeedComma = true; + + switch (C->getCaptureKind()) { + case LCK_This: + OS << "this"; + break; + + case LCK_ByRef: + if (Node->getCaptureDefault() != LCD_ByRef) + OS << '&'; + OS << C->getCapturedVar()->getName(); + break; + + case LCK_ByCopy: + if (Node->getCaptureDefault() != LCD_ByCopy) + OS << '='; + OS << C->getCapturedVar()->getName(); + break; + } + } + OS << ']'; + + if (Node->hasExplicitParameters()) { + OS << " ("; + CXXMethodDecl *Method = Node->getCallOperator(); + NeedComma = false; + for (CXXMethodDecl::param_iterator P = Method->param_begin(), + PEnd = Method->param_end(); + P != PEnd; ++P) { + if (NeedComma) { + OS << ", "; + } else { + NeedComma = true; + } + std::string ParamStr = (*P)->getNameAsString(); + (*P)->getOriginalType().getAsStringInternal(ParamStr, Policy); + OS << ParamStr; + } + if (Method->isVariadic()) { + if (NeedComma) + OS << ", "; + OS << "..."; + } + OS << ')'; + + if (Node->isMutable()) + OS << " mutable"; + + const FunctionProtoType *Proto + = Method->getType()->getAs<FunctionProtoType>(); + { + std::string ExceptionSpec; + Proto->printExceptionSpecification(ExceptionSpec, Policy); + OS << ExceptionSpec; + } + + // FIXME: Attributes + + // Print the trailing return type if it was specified in the source. + if (Node->hasExplicitResultType()) + OS << " -> " << Proto->getResultType().getAsString(Policy); + } + + // Print the body. + CompoundStmt *Body = Node->getBody(); + OS << ' '; + PrintStmt(Body); +} + +void StmtPrinter::VisitCXXScalarValueInitExpr(CXXScalarValueInitExpr *Node) { + if (TypeSourceInfo *TSInfo = Node->getTypeSourceInfo()) + OS << TSInfo->getType().getAsString(Policy) << "()"; + else + OS << Node->getType().getAsString(Policy) << "()"; +} + +void StmtPrinter::VisitCXXNewExpr(CXXNewExpr *E) { + if (E->isGlobalNew()) + OS << "::"; + OS << "new "; + unsigned NumPlace = E->getNumPlacementArgs(); + if (NumPlace > 0) { + OS << "("; + PrintExpr(E->getPlacementArg(0)); + for (unsigned i = 1; i < NumPlace; ++i) { + OS << ", "; + PrintExpr(E->getPlacementArg(i)); + } + OS << ") "; + } + if (E->isParenTypeId()) + OS << "("; + std::string TypeS; + if (Expr *Size = E->getArraySize()) { + llvm::raw_string_ostream s(TypeS); + Size->printPretty(s, Context, Helper, Policy); + s.flush(); + TypeS = "[" + TypeS + "]"; + } + E->getAllocatedType().getAsStringInternal(TypeS, Policy); + OS << TypeS; + if (E->isParenTypeId()) + OS << ")"; + + CXXNewExpr::InitializationStyle InitStyle = E->getInitializationStyle(); + if (InitStyle) { + if (InitStyle == CXXNewExpr::CallInit) + OS << "("; + PrintExpr(E->getInitializer()); + if (InitStyle == CXXNewExpr::CallInit) + OS << ")"; + } +} + +void StmtPrinter::VisitCXXDeleteExpr(CXXDeleteExpr *E) { + if (E->isGlobalDelete()) + OS << "::"; + OS << "delete "; + if (E->isArrayForm()) + OS << "[] "; + PrintExpr(E->getArgument()); +} + +void StmtPrinter::VisitCXXPseudoDestructorExpr(CXXPseudoDestructorExpr *E) { + PrintExpr(E->getBase()); + if (E->isArrow()) + OS << "->"; + else + OS << '.'; + if (E->getQualifier()) + E->getQualifier()->print(OS, Policy); + + std::string TypeS; + if (IdentifierInfo *II = E->getDestroyedTypeIdentifier()) + OS << II->getName(); + else + E->getDestroyedType().getAsStringInternal(TypeS, Policy); + OS << TypeS; +} + +void StmtPrinter::VisitCXXConstructExpr(CXXConstructExpr *E) { + for (unsigned i = 0, e = E->getNumArgs(); i != e; ++i) { + if (isa<CXXDefaultArgExpr>(E->getArg(i))) { + // Don't print any defaulted arguments + break; + } + + if (i) OS << ", "; + PrintExpr(E->getArg(i)); + } +} + +void StmtPrinter::VisitExprWithCleanups(ExprWithCleanups *E) { + // Just forward to the sub expression. + PrintExpr(E->getSubExpr()); +} + +void +StmtPrinter::VisitCXXUnresolvedConstructExpr( + CXXUnresolvedConstructExpr *Node) { + OS << Node->getTypeAsWritten().getAsString(Policy); + OS << "("; + for (CXXUnresolvedConstructExpr::arg_iterator Arg = Node->arg_begin(), + ArgEnd = Node->arg_end(); + Arg != ArgEnd; ++Arg) { + if (Arg != Node->arg_begin()) + OS << ", "; + PrintExpr(*Arg); + } + OS << ")"; +} + +void StmtPrinter::VisitCXXDependentScopeMemberExpr( + CXXDependentScopeMemberExpr *Node) { + if (!Node->isImplicitAccess()) { + PrintExpr(Node->getBase()); + OS << (Node->isArrow() ? "->" : "."); + } + if (NestedNameSpecifier *Qualifier = Node->getQualifier()) + Qualifier->print(OS, Policy); + if (Node->hasTemplateKeyword()) + OS << "template "; + OS << Node->getMemberNameInfo(); + if (Node->hasExplicitTemplateArgs()) { + OS << TemplateSpecializationType::PrintTemplateArgumentList( + Node->getTemplateArgs(), + Node->getNumTemplateArgs(), + Policy); + } +} + +void StmtPrinter::VisitUnresolvedMemberExpr(UnresolvedMemberExpr *Node) { + if (!Node->isImplicitAccess()) { + PrintExpr(Node->getBase()); + OS << (Node->isArrow() ? "->" : "."); + } + if (NestedNameSpecifier *Qualifier = Node->getQualifier()) + Qualifier->print(OS, Policy); + if (Node->hasTemplateKeyword()) + OS << "template "; + OS << Node->getMemberNameInfo(); + if (Node->hasExplicitTemplateArgs()) { + OS << TemplateSpecializationType::PrintTemplateArgumentList( + Node->getTemplateArgs(), + Node->getNumTemplateArgs(), + Policy); + } +} + +static const char *getTypeTraitName(UnaryTypeTrait UTT) { + switch (UTT) { + case UTT_HasNothrowAssign: return "__has_nothrow_assign"; + case UTT_HasNothrowConstructor: return "__has_nothrow_constructor"; + case UTT_HasNothrowCopy: return "__has_nothrow_copy"; + case UTT_HasTrivialAssign: return "__has_trivial_assign"; + case UTT_HasTrivialDefaultConstructor: return "__has_trivial_constructor"; + case UTT_HasTrivialCopy: return "__has_trivial_copy"; + case UTT_HasTrivialDestructor: return "__has_trivial_destructor"; + case UTT_HasVirtualDestructor: return "__has_virtual_destructor"; + case UTT_IsAbstract: return "__is_abstract"; + case UTT_IsArithmetic: return "__is_arithmetic"; + case UTT_IsArray: return "__is_array"; + case UTT_IsClass: return "__is_class"; + case UTT_IsCompleteType: return "__is_complete_type"; + case UTT_IsCompound: return "__is_compound"; + case UTT_IsConst: return "__is_const"; + case UTT_IsEmpty: return "__is_empty"; + case UTT_IsEnum: return "__is_enum"; + case UTT_IsFinal: return "__is_final"; + case UTT_IsFloatingPoint: return "__is_floating_point"; + case UTT_IsFunction: return "__is_function"; + case UTT_IsFundamental: return "__is_fundamental"; + case UTT_IsIntegral: return "__is_integral"; + case UTT_IsLiteral: return "__is_literal"; + case UTT_IsLvalueReference: return "__is_lvalue_reference"; + case UTT_IsMemberFunctionPointer: return "__is_member_function_pointer"; + case UTT_IsMemberObjectPointer: return "__is_member_object_pointer"; + case UTT_IsMemberPointer: return "__is_member_pointer"; + case UTT_IsObject: return "__is_object"; + case UTT_IsPOD: return "__is_pod"; + case UTT_IsPointer: return "__is_pointer"; + case UTT_IsPolymorphic: return "__is_polymorphic"; + case UTT_IsReference: return "__is_reference"; + case UTT_IsRvalueReference: return "__is_rvalue_reference"; + case UTT_IsScalar: return "__is_scalar"; + case UTT_IsSigned: return "__is_signed"; + case UTT_IsStandardLayout: return "__is_standard_layout"; + case UTT_IsTrivial: return "__is_trivial"; + case UTT_IsTriviallyCopyable: return "__is_trivially_copyable"; + case UTT_IsUnion: return "__is_union"; + case UTT_IsUnsigned: return "__is_unsigned"; + case UTT_IsVoid: return "__is_void"; + case UTT_IsVolatile: return "__is_volatile"; + } + llvm_unreachable("Type trait not covered by switch statement"); +} + +static const char *getTypeTraitName(BinaryTypeTrait BTT) { + switch (BTT) { + case BTT_IsBaseOf: return "__is_base_of"; + case BTT_IsConvertible: return "__is_convertible"; + case BTT_IsSame: return "__is_same"; + case BTT_TypeCompatible: return "__builtin_types_compatible_p"; + case BTT_IsConvertibleTo: return "__is_convertible_to"; + case BTT_IsTriviallyAssignable: return "__is_trivially_assignable"; + } + llvm_unreachable("Binary type trait not covered by switch"); +} + +static const char *getTypeTraitName(TypeTrait TT) { + switch (TT) { + case clang::TT_IsTriviallyConstructible:return "__is_trivially_constructible"; + } + llvm_unreachable("Type trait not covered by switch"); +} + +static const char *getTypeTraitName(ArrayTypeTrait ATT) { + switch (ATT) { + case ATT_ArrayRank: return "__array_rank"; + case ATT_ArrayExtent: return "__array_extent"; + } + llvm_unreachable("Array type trait not covered by switch"); +} + +static const char *getExpressionTraitName(ExpressionTrait ET) { + switch (ET) { + case ET_IsLValueExpr: return "__is_lvalue_expr"; + case ET_IsRValueExpr: return "__is_rvalue_expr"; + } + llvm_unreachable("Expression type trait not covered by switch"); +} + +void StmtPrinter::VisitUnaryTypeTraitExpr(UnaryTypeTraitExpr *E) { + OS << getTypeTraitName(E->getTrait()) << "(" + << E->getQueriedType().getAsString(Policy) << ")"; +} + +void StmtPrinter::VisitBinaryTypeTraitExpr(BinaryTypeTraitExpr *E) { + OS << getTypeTraitName(E->getTrait()) << "(" + << E->getLhsType().getAsString(Policy) << "," + << E->getRhsType().getAsString(Policy) << ")"; +} + +void StmtPrinter::VisitTypeTraitExpr(TypeTraitExpr *E) { + OS << getTypeTraitName(E->getTrait()) << "("; + for (unsigned I = 0, N = E->getNumArgs(); I != N; ++I) { + if (I > 0) + OS << ", "; + OS << E->getArg(I)->getType().getAsString(Policy); + } + OS << ")"; +} + +void StmtPrinter::VisitArrayTypeTraitExpr(ArrayTypeTraitExpr *E) { + OS << getTypeTraitName(E->getTrait()) << "(" + << E->getQueriedType().getAsString(Policy) << ")"; +} + +void StmtPrinter::VisitExpressionTraitExpr(ExpressionTraitExpr *E) { + OS << getExpressionTraitName(E->getTrait()) << "("; + PrintExpr(E->getQueriedExpression()); + OS << ")"; +} + +void StmtPrinter::VisitCXXNoexceptExpr(CXXNoexceptExpr *E) { + OS << "noexcept("; + PrintExpr(E->getOperand()); + OS << ")"; +} + +void StmtPrinter::VisitPackExpansionExpr(PackExpansionExpr *E) { + PrintExpr(E->getPattern()); + OS << "..."; +} + +void StmtPrinter::VisitSizeOfPackExpr(SizeOfPackExpr *E) { + OS << "sizeof...(" << *E->getPack() << ")"; +} + +void StmtPrinter::VisitSubstNonTypeTemplateParmPackExpr( + SubstNonTypeTemplateParmPackExpr *Node) { + OS << *Node->getParameterPack(); +} + +void StmtPrinter::VisitSubstNonTypeTemplateParmExpr( + SubstNonTypeTemplateParmExpr *Node) { + Visit(Node->getReplacement()); +} + +void StmtPrinter::VisitMaterializeTemporaryExpr(MaterializeTemporaryExpr *Node){ + PrintExpr(Node->GetTemporaryExpr()); +} + +// Obj-C + +void StmtPrinter::VisitObjCStringLiteral(ObjCStringLiteral *Node) { + OS << "@"; + VisitStringLiteral(Node->getString()); +} + +void StmtPrinter::VisitObjCNumericLiteral(ObjCNumericLiteral *E) { + OS << "@"; + Visit(E->getNumber()); +} + +void StmtPrinter::VisitObjCArrayLiteral(ObjCArrayLiteral *E) { + OS << "@[ "; + StmtRange ch = E->children(); + if (ch.first != ch.second) { + while (1) { + Visit(*ch.first); + ++ch.first; + if (ch.first == ch.second) break; + OS << ", "; + } + } + OS << " ]"; +} + +void StmtPrinter::VisitObjCDictionaryLiteral(ObjCDictionaryLiteral *E) { + OS << "@{ "; + for (unsigned I = 0, N = E->getNumElements(); I != N; ++I) { + if (I > 0) + OS << ", "; + + ObjCDictionaryElement Element = E->getKeyValueElement(I); + Visit(Element.Key); + OS << " : "; + Visit(Element.Value); + if (Element.isPackExpansion()) + OS << "..."; + } + OS << " }"; +} + +void StmtPrinter::VisitObjCEncodeExpr(ObjCEncodeExpr *Node) { + OS << "@encode(" << Node->getEncodedType().getAsString(Policy) << ')'; +} + +void StmtPrinter::VisitObjCSelectorExpr(ObjCSelectorExpr *Node) { + OS << "@selector(" << Node->getSelector().getAsString() << ')'; +} + +void StmtPrinter::VisitObjCProtocolExpr(ObjCProtocolExpr *Node) { + OS << "@protocol(" << *Node->getProtocol() << ')'; +} + +void StmtPrinter::VisitObjCMessageExpr(ObjCMessageExpr *Mess) { + OS << "["; + switch (Mess->getReceiverKind()) { + case ObjCMessageExpr::Instance: + PrintExpr(Mess->getInstanceReceiver()); + break; + + case ObjCMessageExpr::Class: + OS << Mess->getClassReceiver().getAsString(Policy); + break; + + case ObjCMessageExpr::SuperInstance: + case ObjCMessageExpr::SuperClass: + OS << "Super"; + break; + } + + OS << ' '; + Selector selector = Mess->getSelector(); + if (selector.isUnarySelector()) { + OS << selector.getNameForSlot(0); + } else { + for (unsigned i = 0, e = Mess->getNumArgs(); i != e; ++i) { + if (i < selector.getNumArgs()) { + if (i > 0) OS << ' '; + if (selector.getIdentifierInfoForSlot(i)) + OS << selector.getIdentifierInfoForSlot(i)->getName() << ':'; + else + OS << ":"; + } + else OS << ", "; // Handle variadic methods. + + PrintExpr(Mess->getArg(i)); + } + } + OS << "]"; +} + +void StmtPrinter::VisitObjCBoolLiteralExpr(ObjCBoolLiteralExpr *Node) { + OS << (Node->getValue() ? "__objc_yes" : "__objc_no"); +} + +void +StmtPrinter::VisitObjCIndirectCopyRestoreExpr(ObjCIndirectCopyRestoreExpr *E) { + PrintExpr(E->getSubExpr()); +} + +void +StmtPrinter::VisitObjCBridgedCastExpr(ObjCBridgedCastExpr *E) { + OS << "(" << E->getBridgeKindName() << E->getType().getAsString(Policy) + << ")"; + PrintExpr(E->getSubExpr()); +} + +void StmtPrinter::VisitBlockExpr(BlockExpr *Node) { + BlockDecl *BD = Node->getBlockDecl(); + OS << "^"; + + const FunctionType *AFT = Node->getFunctionType(); + + if (isa<FunctionNoProtoType>(AFT)) { + OS << "()"; + } else if (!BD->param_empty() || cast<FunctionProtoType>(AFT)->isVariadic()) { + OS << '('; + std::string ParamStr; + for (BlockDecl::param_iterator AI = BD->param_begin(), + E = BD->param_end(); AI != E; ++AI) { + if (AI != BD->param_begin()) OS << ", "; + ParamStr = (*AI)->getNameAsString(); + (*AI)->getType().getAsStringInternal(ParamStr, Policy); + OS << ParamStr; + } + + const FunctionProtoType *FT = cast<FunctionProtoType>(AFT); + if (FT->isVariadic()) { + if (!BD->param_empty()) OS << ", "; + OS << "..."; + } + OS << ')'; + } +} + +void StmtPrinter::VisitOpaqueValueExpr(OpaqueValueExpr *Node) { + PrintExpr(Node->getSourceExpr()); +} + +void StmtPrinter::VisitAsTypeExpr(AsTypeExpr *Node) { + OS << "__builtin_astype("; + PrintExpr(Node->getSrcExpr()); + OS << ", " << Node->getType().getAsString(); + OS << ")"; +} + +//===----------------------------------------------------------------------===// +// Stmt method implementations +//===----------------------------------------------------------------------===// + +void Stmt::dumpPretty(ASTContext& Context) const { + printPretty(llvm::errs(), Context, 0, + PrintingPolicy(Context.getLangOpts())); +} + +void Stmt::printPretty(raw_ostream &OS, ASTContext& Context, + PrinterHelper* Helper, + const PrintingPolicy &Policy, + unsigned Indentation) const { + if (this == 0) { + OS << "<NULL>"; + return; + } + + if (Policy.Dump && &Context) { + dump(OS, Context.getSourceManager()); + return; + } + + StmtPrinter P(OS, Context, Helper, Policy, Indentation); + P.Visit(const_cast<Stmt*>(this)); +} + +//===----------------------------------------------------------------------===// +// PrinterHelper +//===----------------------------------------------------------------------===// + +// Implement virtual destructor. +PrinterHelper::~PrinterHelper() {} |