Check in LLVM r95781.
diff --git a/lib/AST/StmtPrinter.cpp b/lib/AST/StmtPrinter.cpp
new file mode 100644
index 0000000..3ae306d
--- /dev/null
+++ b/lib/AST/StmtPrinter.cpp
@@ -0,0 +1,1338 @@
+//===--- 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/PrettyPrinter.h"
+#include "llvm/Support/Format.h"
+using namespace clang;
+
+//===----------------------------------------------------------------------===//
+// StmtPrinter Visitor
+//===----------------------------------------------------------------------===//
+
+namespace {
+ class StmtPrinter : public StmtVisitor<StmtPrinter> {
+ llvm::raw_ostream &OS;
+ ASTContext &Context;
+ unsigned IndentLevel;
+ clang::PrinterHelper* Helper;
+ PrintingPolicy Policy;
+
+ public:
+ StmtPrinter(llvm::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 PrintExpr(Expr *E) {
+ if (E)
+ Visit(E);
+ else
+ OS << "<null expr>";
+ }
+
+ llvm::raw_ostream &Indent(int Delta = 0) {
+ for (int i = 0, e = IndentLevel+Delta; i < e; ++i)
+ OS << " ";
+ return OS;
+ }
+
+ bool PrintOffsetOfDesignator(Expr *E);
+ void VisitUnaryOffsetOf(UnaryOperator *Node);
+
+ void Visit(Stmt* S) {
+ if (Helper && Helper->handledStmt(S,OS))
+ return;
+ else StmtVisitor<StmtPrinter>::Visit(S);
+ }
+
+ void VisitStmt(Stmt *Node);
+#define STMT(CLASS, PARENT) \
+ void Visit##CLASS(CLASS *Node);
+#include "clang/AST/StmtNodes.def"
+ };
+}
+
+//===----------------------------------------------------------------------===//
+// Stmt printing methods.
+//===----------------------------------------------------------------------===//
+
+void StmtPrinter::VisitStmt(Stmt *Node) {
+ Indent() << "<<unknown stmt type>>\n";
+}
+
+/// 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();
+ llvm::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::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::VisitSwitchCase(SwitchCase*) {
+ assert(0 && "SwitchCase is an abstract class");
+}
+
+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::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 (ObjCAtCatchStmt *catchStmt =
+ static_cast<ObjCAtCatchStmt *>(Node->getCatchStmts());
+ catchStmt;
+ catchStmt =
+ static_cast<ObjCAtCatchStmt *>(catchStmt->getNextCatchStmt())) {
+ 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::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";
+}
+
+//===----------------------------------------------------------------------===//
+// Expr printing methods.
+//===----------------------------------------------------------------------===//
+
+void StmtPrinter::VisitExpr(Expr *Node) {
+ OS << "<<unknown expr type>>";
+}
+
+void StmtPrinter::VisitDeclRefExpr(DeclRefExpr *Node) {
+ if (NestedNameSpecifier *Qualifier = Node->getQualifier())
+ Qualifier->print(OS, Policy);
+ OS << Node->getDecl()->getNameAsString();
+ if (Node->hasExplicitTemplateArgumentList())
+ OS << TemplateSpecializationType::PrintTemplateArgumentList(
+ Node->getTemplateArgs(),
+ Node->getNumTemplateArgs(),
+ Policy);
+}
+
+void StmtPrinter::VisitDependentScopeDeclRefExpr(
+ DependentScopeDeclRefExpr *Node) {
+ Node->getQualifier()->print(OS, Policy);
+ OS << Node->getDeclName().getAsString();
+ if (Node->hasExplicitTemplateArgs())
+ OS << TemplateSpecializationType::PrintTemplateArgumentList(
+ Node->getTemplateArgs(),
+ Node->getNumTemplateArgs(),
+ Policy);
+}
+
+void StmtPrinter::VisitUnresolvedLookupExpr(UnresolvedLookupExpr *Node) {
+ if (Node->getQualifier())
+ Node->getQualifier()->print(OS, Policy);
+ OS << Node->getName().getAsString();
+ 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()->getNameAsString();
+}
+
+void StmtPrinter::VisitObjCPropertyRefExpr(ObjCPropertyRefExpr *Node) {
+ if (Node->getBase()) {
+ PrintExpr(Node->getBase());
+ OS << ".";
+ }
+ OS << Node->getProperty()->getNameAsCString();
+}
+
+void StmtPrinter::VisitObjCImplicitSetterGetterRefExpr(
+ ObjCImplicitSetterGetterRefExpr *Node) {
+ if (Node->getBase()) {
+ PrintExpr(Node->getBase());
+ OS << ".";
+ }
+ if (Node->getGetterMethod())
+ OS << Node->getGetterMethod()->getNameAsString();
+
+}
+
+void StmtPrinter::VisitPredefinedExpr(PredefinedExpr *Node) {
+ switch (Node->getIdentType()) {
+ default:
+ assert(0 && "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();
+ if (Node->isWide())
+ OS << "L";
+ 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" << llvm::format("%x", 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: assert(0 && "Unexpected type for integer literal!");
+ 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;
+ }
+}
+void StmtPrinter::VisitFloatingLiteral(FloatingLiteral *Node) {
+ // FIXME: print value more precisely.
+ OS << Node->getValueAsApproximateDouble();
+}
+
+void StmtPrinter::VisitImaginaryLiteral(ImaginaryLiteral *Node) {
+ PrintExpr(Node->getSubExpr());
+ OS << "i";
+}
+
+void StmtPrinter::VisitStringLiteral(StringLiteral *Str) {
+ if (Str->isWide()) OS << 'L';
+ OS << '"';
+
+ // FIXME: this doesn't print wstrings right.
+ for (unsigned i = 0, e = Str->getByteLength(); i != e; ++i) {
+ unsigned char Char = Str->getStrData()[i];
+
+ switch (Char) {
+ default:
+ if (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 UnaryOperator::Real:
+ case UnaryOperator::Imag:
+ case UnaryOperator::Extension:
+ OS << ' ';
+ break;
+ case UnaryOperator::Plus:
+ case UnaryOperator::Minus:
+ if (isa<UnaryOperator>(Node->getSubExpr()))
+ OS << ' ';
+ break;
+ }
+ }
+ PrintExpr(Node->getSubExpr());
+
+ if (Node->isPostfix())
+ OS << UnaryOperator::getOpcodeStr(Node->getOpcode());
+}
+
+bool StmtPrinter::PrintOffsetOfDesignator(Expr *E) {
+ if (isa<UnaryOperator>(E)) {
+ // Base case, print the type and comma.
+ OS << E->getType().getAsString() << ", ";
+ return true;
+ } else if (ArraySubscriptExpr *ASE = dyn_cast<ArraySubscriptExpr>(E)) {
+ PrintOffsetOfDesignator(ASE->getLHS());
+ OS << "[";
+ PrintExpr(ASE->getRHS());
+ OS << "]";
+ return false;
+ } else {
+ MemberExpr *ME = cast<MemberExpr>(E);
+ bool IsFirst = PrintOffsetOfDesignator(ME->getBase());
+ OS << (IsFirst ? "" : ".") << ME->getMemberDecl()->getNameAsString();
+ return false;
+ }
+}
+
+void StmtPrinter::VisitUnaryOffsetOf(UnaryOperator *Node) {
+ OS << "__builtin_offsetof(";
+ PrintOffsetOfDesignator(Node->getSubExpr());
+ OS << ")";
+}
+
+void StmtPrinter::VisitSizeOfAlignOfExpr(SizeOfAlignOfExpr *Node) {
+ OS << (Node->isSizeOf() ? "sizeof" : "__alignof");
+ if (Node->isArgumentType())
+ OS << "(" << Node->getArgumentType().getAsString() << ")";
+ else {
+ OS << " ";
+ PrintExpr(Node->getArgumentExpr());
+ }
+}
+void StmtPrinter::VisitArraySubscriptExpr(ArraySubscriptExpr *Node) {
+ PrintExpr(Node->getLHS());
+ OS << "[";
+ PrintExpr(Node->getRHS());
+ OS << "]";
+}
+
+void StmtPrinter::VisitCallExpr(CallExpr *Call) {
+ PrintExpr(Call->getCallee());
+ OS << "(";
+ 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));
+ }
+ 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);
+
+ OS << Node->getMemberDecl()->getNameAsString();
+
+ if (Node->hasExplicitTemplateArgumentList())
+ 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::VisitCastExpr(CastExpr *) {
+ assert(0 && "CastExpr is an abstract class");
+}
+void StmtPrinter::VisitExplicitCastExpr(ExplicitCastExpr *) {
+ assert(0 && "ExplicitCastExpr is an abstract class");
+}
+void StmtPrinter::VisitCStyleCastExpr(CStyleCastExpr *Node) {
+ OS << "(" << Node->getType().getAsString() << ")";
+ PrintExpr(Node->getSubExpr());
+}
+void StmtPrinter::VisitCompoundLiteralExpr(CompoundLiteralExpr *Node) {
+ OS << "(" << Node->getType().getAsString() << ")";
+ 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());
+
+ if (Node->getLHS()) {
+ OS << " ? ";
+ PrintExpr(Node->getLHS());
+ OS << " : ";
+ }
+ else { // Handle GCC extension where LHS can be NULL.
+ OS << " ?: ";
+ }
+
+ PrintExpr(Node->getRHS());
+}
+
+// GNU extensions.
+
+void StmtPrinter::VisitAddrLabelExpr(AddrLabelExpr *Node) {
+ OS << "&&" << Node->getLabel()->getName();
+}
+
+void StmtPrinter::VisitStmtExpr(StmtExpr *E) {
+ OS << "(";
+ PrintRawCompoundStmt(E->getSubStmt());
+ OS << ")";
+}
+
+void StmtPrinter::VisitTypesCompatibleExpr(TypesCompatibleExpr *Node) {
+ OS << "__builtin_types_compatible_p(";
+ OS << Node->getArgType1().getAsString() << ",";
+ OS << Node->getArgType2().getAsString() << ")";
+}
+
+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();
+ 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 {
+ assert(false && "unknown overloaded operator");
+ }
+}
+
+void StmtPrinter::VisitCXXMemberCallExpr(CXXMemberCallExpr *Node) {
+ VisitCallExpr(cast<CallExpr>(Node));
+}
+
+void StmtPrinter::VisitCXXNamedCastExpr(CXXNamedCastExpr *Node) {
+ OS << Node->getCastName() << '<';
+ OS << Node->getTypeAsWritten().getAsString() << ">(";
+ 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();
+ } else {
+ PrintExpr(Node->getExprOperand());
+ }
+ OS << ")";
+}
+
+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();
+ OS << "(";
+ PrintExpr(Node->getSubExpr());
+ OS << ")";
+}
+
+void StmtPrinter::VisitCXXBindTemporaryExpr(CXXBindTemporaryExpr *Node) {
+ PrintExpr(Node->getSubExpr());
+}
+
+void StmtPrinter::VisitCXXBindReferenceExpr(CXXBindReferenceExpr *Node) {
+ PrintExpr(Node->getSubExpr());
+}
+
+void StmtPrinter::VisitCXXTemporaryObjectExpr(CXXTemporaryObjectExpr *Node) {
+ OS << Node->getType().getAsString();
+ 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::VisitCXXZeroInitValueExpr(CXXZeroInitValueExpr *Node) {
+ OS << Node->getType().getAsString() << "()";
+}
+
+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 << ")";
+
+ if (E->hasInitializer()) {
+ OS << "(";
+ unsigned NumCons = E->getNumConstructorArgs();
+ if (NumCons > 0) {
+ PrintExpr(E->getConstructorArg(0));
+ for (unsigned i = 1; i < NumCons; ++i) {
+ OS << ", ";
+ PrintExpr(E->getConstructorArg(i));
+ }
+ }
+ 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;
+ E->getDestroyedType().getAsStringInternal(TypeS, Policy);
+ OS << TypeS;
+}
+
+void StmtPrinter::VisitCXXConstructExpr(CXXConstructExpr *E) {
+ // FIXME. For now we just print a trivial constructor call expression,
+ // constructing its first argument object.
+ if (E->getNumArgs() == 1) {
+ CXXConstructorDecl *CD = E->getConstructor();
+ if (CD->isTrivial())
+ PrintExpr(E->getArg(0));
+ }
+ // Nothing to print.
+}
+
+void StmtPrinter::VisitCXXExprWithTemporaries(CXXExprWithTemporaries *E) {
+ // Just forward to the sub expression.
+ PrintExpr(E->getSubExpr());
+}
+
+void
+StmtPrinter::VisitCXXUnresolvedConstructExpr(
+ CXXUnresolvedConstructExpr *Node) {
+ OS << Node->getTypeAsWritten().getAsString();
+ 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);
+ else if (Node->hasExplicitTemplateArgs())
+ // FIXME: Track use of "template" keyword explicitly?
+ OS << "template ";
+
+ OS << Node->getMember().getAsString();
+
+ 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);
+
+ // FIXME: this might originally have been written with 'template'
+
+ OS << Node->getMemberName().getAsString();
+
+ if (Node->hasExplicitTemplateArgs()) {
+ OS << TemplateSpecializationType::PrintTemplateArgumentList(
+ Node->getTemplateArgs(),
+ Node->getNumTemplateArgs(),
+ Policy);
+ }
+}
+
+static const char *getTypeTraitName(UnaryTypeTrait UTT) {
+ switch (UTT) {
+ default: assert(false && "Unknown type trait");
+ case UTT_HasNothrowAssign: return "__has_nothrow_assign";
+ case UTT_HasNothrowCopy: return "__has_nothrow_copy";
+ case UTT_HasNothrowConstructor: return "__has_nothrow_constructor";
+ case UTT_HasTrivialAssign: return "__has_trivial_assign";
+ case UTT_HasTrivialCopy: return "__has_trivial_copy";
+ case UTT_HasTrivialConstructor: return "__has_trivial_constructor";
+ case UTT_HasTrivialDestructor: return "__has_trivial_destructor";
+ case UTT_HasVirtualDestructor: return "__has_virtual_destructor";
+ case UTT_IsAbstract: return "__is_abstract";
+ case UTT_IsClass: return "__is_class";
+ case UTT_IsEmpty: return "__is_empty";
+ case UTT_IsEnum: return "__is_enum";
+ case UTT_IsPOD: return "__is_pod";
+ case UTT_IsPolymorphic: return "__is_polymorphic";
+ case UTT_IsUnion: return "__is_union";
+ }
+}
+
+void StmtPrinter::VisitUnaryTypeTraitExpr(UnaryTypeTraitExpr *E) {
+ OS << getTypeTraitName(E->getTrait()) << "("
+ << E->getQueriedType().getAsString() << ")";
+}
+
+// Obj-C
+
+void StmtPrinter::VisitObjCStringLiteral(ObjCStringLiteral *Node) {
+ OS << "@";
+ VisitStringLiteral(Node->getString());
+}
+
+void StmtPrinter::VisitObjCEncodeExpr(ObjCEncodeExpr *Node) {
+ OS << "@encode(" << Node->getEncodedType().getAsString() << ')';
+}
+
+void StmtPrinter::VisitObjCSelectorExpr(ObjCSelectorExpr *Node) {
+ OS << "@selector(" << Node->getSelector().getAsString() << ')';
+}
+
+void StmtPrinter::VisitObjCProtocolExpr(ObjCProtocolExpr *Node) {
+ OS << "@protocol(" << Node->getProtocol()->getNameAsString() << ')';
+}
+
+void StmtPrinter::VisitObjCMessageExpr(ObjCMessageExpr *Mess) {
+ OS << "[";
+ Expr *receiver = Mess->getReceiver();
+ if (receiver) PrintExpr(receiver);
+ else OS << Mess->getClassName()->getName();
+ OS << ' ';
+ Selector selector = Mess->getSelector();
+ if (selector.isUnarySelector()) {
+ OS << selector.getIdentifierInfoForSlot(0)->getName();
+ } 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::VisitObjCSuperExpr(ObjCSuperExpr *) {
+ OS << "super";
+}
+
+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::VisitBlockDeclRefExpr(BlockDeclRefExpr *Node) {
+ OS << Node->getDecl()->getNameAsString();
+}
+//===----------------------------------------------------------------------===//
+// Stmt method implementations
+//===----------------------------------------------------------------------===//
+
+void Stmt::dumpPretty(ASTContext& Context) const {
+ printPretty(llvm::errs(), Context, 0,
+ PrintingPolicy(Context.getLangOptions()));
+}
+
+void Stmt::printPretty(llvm::raw_ostream &OS, ASTContext& Context,
+ PrinterHelper* Helper,
+ const PrintingPolicy &Policy,
+ unsigned Indentation) const {
+ if (this == 0) {
+ OS << "<NULL>";
+ return;
+ }
+
+ if (Policy.Dump && &Context) {
+ dump(Context.getSourceManager());
+ return;
+ }
+
+ StmtPrinter P(OS, Context, Helper, Policy, Indentation);
+ P.Visit(const_cast<Stmt*>(this));
+}
+
+//===----------------------------------------------------------------------===//
+// PrinterHelper
+//===----------------------------------------------------------------------===//
+
+// Implement virtual destructor.
+PrinterHelper::~PrinterHelper() {}