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llvm-project/clang/lib/AST/StmtPrinter.cpp

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//===--- 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 "llvm/Support/Format.h"
#include "clang/AST/Expr.h"
#include "clang/AST/ExprCXX.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::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::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);
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);
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);
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::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();
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" << 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) {
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 << '"';
// FIXME: this doesn't print wstrings right.
StringRef StrData = Str->getString();
for (StringRef::iterator I = StrData.begin(), E = StrData.end();
I != E; ++I) {
unsigned char Char = *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 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);
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 << ")";
}
// 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::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::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::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 << ")";
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;
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);
else if (Node->hasExplicitTemplateArgs())
// FIXME: Track use of "template" keyword explicitly?
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);
// FIXME: this might originally have been written with '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_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";
}
llvm_unreachable("Binary 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::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()->getNameAsString() << ")";
}
void StmtPrinter::VisitSubstNonTypeTemplateParmPackExpr(
SubstNonTypeTemplateParmPackExpr *Node) {
OS << Node->getParameterPack()->getNameAsString();
}
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::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::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::VisitBlockDeclRefExpr(BlockDeclRefExpr *Node) {
OS << Node->getDecl();
}
void StmtPrinter::VisitOpaqueValueExpr(OpaqueValueExpr *Node) {}
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.getLangOptions()));
}
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() {}
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