зеркало из https://github.com/microsoft/clang-1.git
1248 строки
33 KiB
C++
1248 строки
33 KiB
C++
//===--- StmtPrinter.cpp - Printing implementation for Stmt ASTs ----------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file implements the Stmt::dumpPretty/Stmt::printPretty methods, which
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// pretty print the AST back out to C code.
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//
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//===----------------------------------------------------------------------===//
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#include "clang/AST/StmtVisitor.h"
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#include "clang/AST/DeclCXX.h"
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#include "clang/AST/DeclObjC.h"
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#include "clang/AST/PrettyPrinter.h"
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#include "llvm/Support/Compiler.h"
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#include "llvm/Support/Streams.h"
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#include "llvm/Support/Format.h"
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using namespace clang;
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//===----------------------------------------------------------------------===//
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// StmtPrinter Visitor
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//===----------------------------------------------------------------------===//
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namespace {
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class VISIBILITY_HIDDEN StmtPrinter : public StmtVisitor<StmtPrinter> {
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llvm::raw_ostream &OS;
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unsigned IndentLevel;
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bool NoIndent;
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clang::PrinterHelper* Helper;
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public:
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StmtPrinter(llvm::raw_ostream &os, PrinterHelper* helper, unsigned I=0,
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bool noIndent=false) :
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OS(os), IndentLevel(I), NoIndent(noIndent), Helper(helper) {}
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void PrintStmt(Stmt *S, int SubIndent = 1) {
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IndentLevel += SubIndent;
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if (S && isa<Expr>(S)) {
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// If this is an expr used in a stmt context, indent and newline it.
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Indent();
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Visit(S);
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OS << ";\n";
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} else if (S) {
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Visit(S);
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} else {
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Indent() << "<<<NULL STATEMENT>>>\n";
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}
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IndentLevel -= SubIndent;
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}
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void PrintRawCompoundStmt(CompoundStmt *S);
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void PrintRawDecl(Decl *D);
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void PrintRawDeclStmt(DeclStmt *S);
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void PrintFieldDecl(FieldDecl *FD);
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void PrintRawIfStmt(IfStmt *If);
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void PrintRawCXXCatchStmt(CXXCatchStmt *Catch);
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void PrintExpr(Expr *E) {
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if (E)
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Visit(E);
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else
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OS << "<null expr>";
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}
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llvm::raw_ostream &Indent(int Delta = 0) {
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if (!NoIndent) {
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for (int i = 0, e = IndentLevel+Delta; i < e; ++i)
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OS << " ";
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} else NoIndent = false;
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return OS;
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}
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bool PrintOffsetOfDesignator(Expr *E);
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void VisitUnaryOffsetOf(UnaryOperator *Node);
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void Visit(Stmt* S) {
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if (Helper && Helper->handledStmt(S,OS))
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return;
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else StmtVisitor<StmtPrinter>::Visit(S);
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}
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void VisitStmt(Stmt *Node);
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#define STMT(CLASS, PARENT) \
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void Visit##CLASS(CLASS *Node);
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#include "clang/AST/StmtNodes.def"
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};
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}
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//===----------------------------------------------------------------------===//
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// Stmt printing methods.
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//===----------------------------------------------------------------------===//
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void StmtPrinter::VisitStmt(Stmt *Node) {
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Indent() << "<<unknown stmt type>>\n";
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}
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/// PrintRawCompoundStmt - Print a compound stmt without indenting the {, and
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/// with no newline after the }.
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void StmtPrinter::PrintRawCompoundStmt(CompoundStmt *Node) {
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OS << "{\n";
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for (CompoundStmt::body_iterator I = Node->body_begin(), E = Node->body_end();
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I != E; ++I)
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PrintStmt(*I);
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Indent() << "}";
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}
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void StmtPrinter::PrintRawDecl(Decl *D) {
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// FIXME: Need to complete/beautify this... this code simply shows the
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// nodes are where they need to be.
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if (TypedefDecl *localType = dyn_cast<TypedefDecl>(D)) {
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OS << "typedef " << localType->getUnderlyingType().getAsString();
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OS << " " << localType->getNameAsString();
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} else if (ValueDecl *VD = dyn_cast<ValueDecl>(D)) {
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// Emit storage class for vardecls.
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if (VarDecl *V = dyn_cast<VarDecl>(VD)) {
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switch (V->getStorageClass()) {
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default: assert(0 && "Unknown storage class!");
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case VarDecl::None: break;
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case VarDecl::Extern: OS << "extern "; break;
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case VarDecl::Static: OS << "static "; break;
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case VarDecl::Auto: OS << "auto "; break;
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case VarDecl::Register: OS << "register "; break;
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case VarDecl::PrivateExtern: OS << "__private_extern "; break;
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}
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}
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std::string Name = VD->getNameAsString();
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VD->getType().getAsStringInternal(Name);
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OS << Name;
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// If this is a vardecl with an initializer, emit it.
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if (VarDecl *V = dyn_cast<VarDecl>(VD)) {
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if (V->getInit()) {
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OS << " = ";
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PrintExpr(V->getInit());
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}
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}
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} else if (TagDecl *TD = dyn_cast<TagDecl>(D)) {
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// print a free standing tag decl (e.g. "struct x;").
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OS << TD->getKindName();
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OS << " ";
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if (const IdentifierInfo *II = TD->getIdentifier())
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OS << II->getName();
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if (RecordDecl *RD = dyn_cast<RecordDecl>(TD)) {
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OS << "{\n";
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IndentLevel += 1;
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for (RecordDecl::field_iterator i = RD->field_begin(); i != RD->field_end(); ++i) {
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PrintFieldDecl(*i);
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IndentLevel -= 1;
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}
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}
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} else {
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assert(0 && "Unexpected decl");
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}
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}
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void StmtPrinter::PrintFieldDecl(FieldDecl *FD) {
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Indent() << FD->getNameAsString() << "\n";
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}
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void StmtPrinter::PrintRawDeclStmt(DeclStmt *S) {
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bool isFirst = true;
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for (DeclStmt::decl_iterator I = S->decl_begin(), E = S->decl_end();
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I != E; ++I) {
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if (!isFirst) OS << ", ";
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else isFirst = false;
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PrintRawDecl(*I);
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}
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}
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void StmtPrinter::VisitNullStmt(NullStmt *Node) {
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Indent() << ";\n";
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}
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void StmtPrinter::VisitDeclStmt(DeclStmt *Node) {
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for (DeclStmt::decl_iterator I = Node->decl_begin(), E = Node->decl_end();
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I!=E; ++I) {
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Indent();
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PrintRawDecl(*I);
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OS << ";\n";
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}
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}
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void StmtPrinter::VisitCompoundStmt(CompoundStmt *Node) {
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Indent();
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PrintRawCompoundStmt(Node);
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OS << "\n";
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}
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void StmtPrinter::VisitCaseStmt(CaseStmt *Node) {
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Indent(-1) << "case ";
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PrintExpr(Node->getLHS());
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if (Node->getRHS()) {
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OS << " ... ";
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PrintExpr(Node->getRHS());
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}
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OS << ":\n";
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PrintStmt(Node->getSubStmt(), 0);
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}
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void StmtPrinter::VisitDefaultStmt(DefaultStmt *Node) {
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Indent(-1) << "default:\n";
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PrintStmt(Node->getSubStmt(), 0);
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}
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void StmtPrinter::VisitLabelStmt(LabelStmt *Node) {
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Indent(-1) << Node->getName() << ":\n";
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PrintStmt(Node->getSubStmt(), 0);
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}
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void StmtPrinter::PrintRawIfStmt(IfStmt *If) {
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OS << "if (";
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PrintExpr(If->getCond());
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OS << ')';
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if (CompoundStmt *CS = dyn_cast<CompoundStmt>(If->getThen())) {
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OS << ' ';
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PrintRawCompoundStmt(CS);
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OS << (If->getElse() ? ' ' : '\n');
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} else {
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OS << '\n';
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PrintStmt(If->getThen());
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if (If->getElse()) Indent();
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}
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if (Stmt *Else = If->getElse()) {
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OS << "else";
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if (CompoundStmt *CS = dyn_cast<CompoundStmt>(Else)) {
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OS << ' ';
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PrintRawCompoundStmt(CS);
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OS << '\n';
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} else if (IfStmt *ElseIf = dyn_cast<IfStmt>(Else)) {
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OS << ' ';
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PrintRawIfStmt(ElseIf);
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} else {
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OS << '\n';
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PrintStmt(If->getElse());
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}
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}
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}
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void StmtPrinter::VisitIfStmt(IfStmt *If) {
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Indent();
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PrintRawIfStmt(If);
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}
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void StmtPrinter::VisitSwitchStmt(SwitchStmt *Node) {
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Indent() << "switch (";
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PrintExpr(Node->getCond());
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OS << ")";
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// Pretty print compoundstmt bodies (very common).
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if (CompoundStmt *CS = dyn_cast<CompoundStmt>(Node->getBody())) {
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OS << " ";
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PrintRawCompoundStmt(CS);
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OS << "\n";
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} else {
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OS << "\n";
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PrintStmt(Node->getBody());
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}
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}
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void StmtPrinter::VisitSwitchCase(SwitchCase*) {
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assert(0 && "SwitchCase is an abstract class");
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}
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void StmtPrinter::VisitWhileStmt(WhileStmt *Node) {
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Indent() << "while (";
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PrintExpr(Node->getCond());
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OS << ")\n";
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PrintStmt(Node->getBody());
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}
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void StmtPrinter::VisitDoStmt(DoStmt *Node) {
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Indent() << "do ";
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if (CompoundStmt *CS = dyn_cast<CompoundStmt>(Node->getBody())) {
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PrintRawCompoundStmt(CS);
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OS << " ";
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} else {
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OS << "\n";
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PrintStmt(Node->getBody());
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Indent();
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}
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OS << "while ";
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PrintExpr(Node->getCond());
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OS << ";\n";
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}
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void StmtPrinter::VisitForStmt(ForStmt *Node) {
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Indent() << "for (";
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if (Node->getInit()) {
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if (DeclStmt *DS = dyn_cast<DeclStmt>(Node->getInit()))
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PrintRawDeclStmt(DS);
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else
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PrintExpr(cast<Expr>(Node->getInit()));
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}
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OS << ";";
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if (Node->getCond()) {
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OS << " ";
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PrintExpr(Node->getCond());
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}
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OS << ";";
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if (Node->getInc()) {
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OS << " ";
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PrintExpr(Node->getInc());
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}
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OS << ") ";
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if (CompoundStmt *CS = dyn_cast<CompoundStmt>(Node->getBody())) {
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PrintRawCompoundStmt(CS);
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OS << "\n";
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} else {
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OS << "\n";
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PrintStmt(Node->getBody());
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}
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}
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void StmtPrinter::VisitObjCForCollectionStmt(ObjCForCollectionStmt *Node) {
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Indent() << "for (";
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if (DeclStmt *DS = dyn_cast<DeclStmt>(Node->getElement()))
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PrintRawDeclStmt(DS);
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else
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PrintExpr(cast<Expr>(Node->getElement()));
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OS << " in ";
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PrintExpr(Node->getCollection());
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OS << ") ";
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if (CompoundStmt *CS = dyn_cast<CompoundStmt>(Node->getBody())) {
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PrintRawCompoundStmt(CS);
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OS << "\n";
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} else {
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OS << "\n";
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PrintStmt(Node->getBody());
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}
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}
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void StmtPrinter::VisitGotoStmt(GotoStmt *Node) {
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Indent() << "goto " << Node->getLabel()->getName() << ";\n";
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}
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void StmtPrinter::VisitIndirectGotoStmt(IndirectGotoStmt *Node) {
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Indent() << "goto *";
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PrintExpr(Node->getTarget());
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OS << ";\n";
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}
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void StmtPrinter::VisitContinueStmt(ContinueStmt *Node) {
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Indent() << "continue;\n";
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}
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void StmtPrinter::VisitBreakStmt(BreakStmt *Node) {
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Indent() << "break;\n";
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}
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void StmtPrinter::VisitReturnStmt(ReturnStmt *Node) {
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Indent() << "return";
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if (Node->getRetValue()) {
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OS << " ";
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PrintExpr(Node->getRetValue());
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}
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OS << ";\n";
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}
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void StmtPrinter::VisitAsmStmt(AsmStmt *Node) {
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Indent() << "asm ";
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if (Node->isVolatile())
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OS << "volatile ";
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OS << "(";
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VisitStringLiteral(Node->getAsmString());
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// Outputs
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if (Node->getNumOutputs() != 0 || Node->getNumInputs() != 0 ||
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Node->getNumClobbers() != 0)
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OS << " : ";
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for (unsigned i = 0, e = Node->getNumOutputs(); i != e; ++i) {
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if (i != 0)
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OS << ", ";
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if (!Node->getOutputName(i).empty()) {
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OS << '[';
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OS << Node->getOutputName(i);
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OS << "] ";
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}
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VisitStringLiteral(Node->getOutputConstraint(i));
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OS << " ";
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Visit(Node->getOutputExpr(i));
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}
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// Inputs
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if (Node->getNumInputs() != 0 || Node->getNumClobbers() != 0)
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OS << " : ";
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for (unsigned i = 0, e = Node->getNumInputs(); i != e; ++i) {
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if (i != 0)
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OS << ", ";
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if (!Node->getInputName(i).empty()) {
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OS << '[';
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OS << Node->getInputName(i);
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OS << "] ";
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}
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VisitStringLiteral(Node->getInputConstraint(i));
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OS << " ";
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Visit(Node->getInputExpr(i));
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}
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// Clobbers
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if (Node->getNumClobbers() != 0)
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OS << " : ";
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for (unsigned i = 0, e = Node->getNumClobbers(); i != e; ++i) {
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if (i != 0)
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OS << ", ";
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VisitStringLiteral(Node->getClobber(i));
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}
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OS << ");\n";
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}
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void StmtPrinter::VisitObjCAtTryStmt(ObjCAtTryStmt *Node) {
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Indent() << "@try";
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if (CompoundStmt *TS = dyn_cast<CompoundStmt>(Node->getTryBody())) {
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PrintRawCompoundStmt(TS);
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OS << "\n";
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}
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for (ObjCAtCatchStmt *catchStmt =
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static_cast<ObjCAtCatchStmt *>(Node->getCatchStmts());
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catchStmt;
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catchStmt =
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static_cast<ObjCAtCatchStmt *>(catchStmt->getNextCatchStmt())) {
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Indent() << "@catch(";
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if (catchStmt->getCatchParamStmt()) {
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if (DeclStmt *DS = dyn_cast<DeclStmt>(catchStmt->getCatchParamStmt()))
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PrintRawDeclStmt(DS);
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}
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OS << ")";
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if (CompoundStmt *CS = dyn_cast<CompoundStmt>(catchStmt->getCatchBody()))
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{
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PrintRawCompoundStmt(CS);
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OS << "\n";
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}
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}
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if (ObjCAtFinallyStmt *FS =static_cast<ObjCAtFinallyStmt *>(
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Node->getFinallyStmt())) {
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Indent() << "@finally";
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PrintRawCompoundStmt(dyn_cast<CompoundStmt>(FS->getFinallyBody()));
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OS << "\n";
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}
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}
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void StmtPrinter::VisitObjCAtFinallyStmt(ObjCAtFinallyStmt *Node) {
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}
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void StmtPrinter::VisitObjCAtCatchStmt (ObjCAtCatchStmt *Node) {
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Indent() << "@catch (...) { /* todo */ } \n";
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}
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void StmtPrinter::VisitObjCAtThrowStmt(ObjCAtThrowStmt *Node) {
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Indent() << "@throw";
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if (Node->getThrowExpr()) {
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OS << " ";
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PrintExpr(Node->getThrowExpr());
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}
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OS << ";\n";
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}
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void StmtPrinter::VisitObjCAtSynchronizedStmt(ObjCAtSynchronizedStmt *Node) {
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Indent() << "@synchronized (";
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PrintExpr(Node->getSynchExpr());
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OS << ")";
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PrintRawCompoundStmt(Node->getSynchBody());
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OS << "\n";
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}
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void StmtPrinter::PrintRawCXXCatchStmt(CXXCatchStmt *Node) {
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OS << "catch (";
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if (Decl *ExDecl = Node->getExceptionDecl())
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PrintRawDecl(ExDecl);
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else
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OS << "...";
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OS << ") ";
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PrintRawCompoundStmt(cast<CompoundStmt>(Node->getHandlerBlock()));
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}
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void StmtPrinter::VisitCXXCatchStmt(CXXCatchStmt *Node) {
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Indent();
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PrintRawCXXCatchStmt(Node);
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OS << "\n";
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}
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void StmtPrinter::VisitCXXTryStmt(CXXTryStmt *Node) {
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Indent() << "try ";
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PrintRawCompoundStmt(Node->getTryBlock());
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for(unsigned i = 0, e = Node->getNumHandlers(); i < e; ++i) {
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OS << " ";
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PrintRawCXXCatchStmt(Node->getHandler(i));
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}
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OS << "\n";
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}
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//===----------------------------------------------------------------------===//
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// Expr printing methods.
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//===----------------------------------------------------------------------===//
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void StmtPrinter::VisitExpr(Expr *Node) {
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OS << "<<unknown expr type>>";
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}
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void StmtPrinter::VisitDeclRefExpr(DeclRefExpr *Node) {
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OS << Node->getDecl()->getNameAsString();
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}
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void StmtPrinter::VisitQualifiedDeclRefExpr(QualifiedDeclRefExpr *Node) {
|
|
// FIXME: Should we keep enough information in QualifiedDeclRefExpr
|
|
// to produce the same qualification that the user wrote?
|
|
llvm::SmallVector<DeclContext *, 4> Contexts;
|
|
|
|
NamedDecl *D = Node->getDecl();
|
|
|
|
// Build up a stack of contexts.
|
|
DeclContext *Ctx = D->getDeclContext();
|
|
for (; Ctx; Ctx = Ctx->getParent())
|
|
if (!Ctx->isTransparentContext())
|
|
Contexts.push_back(Ctx);
|
|
|
|
while (!Contexts.empty()) {
|
|
DeclContext *Ctx = Contexts.back();
|
|
if (isa<TranslationUnitDecl>(Ctx))
|
|
OS << "::";
|
|
else if (NamedDecl *ND = dyn_cast<NamedDecl>(Ctx))
|
|
OS << ND->getNameAsString() << "::";
|
|
Contexts.pop_back();
|
|
}
|
|
|
|
OS << D->getNameAsString();
|
|
}
|
|
|
|
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::VisitObjCKVCRefExpr(ObjCKVCRefExpr *Node) {
|
|
if (Node->getBase()) {
|
|
PrintExpr(Node->getBase());
|
|
OS << ".";
|
|
}
|
|
// FIXME: Setter/Getter names
|
|
}
|
|
|
|
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()->getAsBuiltinType()->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.
|
|
switch (Node->getOpcode()) {
|
|
default: break;
|
|
case UnaryOperator::Real:
|
|
case UnaryOperator::Imag:
|
|
case UnaryOperator::Extension:
|
|
OS << ' ';
|
|
break;
|
|
}
|
|
}
|
|
PrintExpr(Node->getSubExpr());
|
|
|
|
if (Node->isPostfix())
|
|
OS << UnaryOperator::getOpcodeStr(Node->getOpcode());
|
|
}
|
|
|
|
bool StmtPrinter::PrintOffsetOfDesignator(Expr *E) {
|
|
if (isa<CompoundLiteralExpr>(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());
|
|
OS << (Node->isArrow() ? "->" : ".");
|
|
// FIXME: Suppress printing references to unnamed objects
|
|
// representing anonymous unions/structs
|
|
OS << Node->getMemberDecl()->getNameAsString();
|
|
}
|
|
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 extention 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) {
|
|
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::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) {
|
|
OS << "/*implicit*/" << Node->getType().getAsString() << "()";
|
|
}
|
|
|
|
void StmtPrinter::VisitVAArgExpr(VAArgExpr *Node) {
|
|
OS << "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::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::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::VisitCXXConditionDeclExpr(CXXConditionDeclExpr *E) {
|
|
PrintRawDecl(E->getVarDecl());
|
|
}
|
|
|
|
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);
|
|
s.flush();
|
|
TypeS = "[" + TypeS + "]";
|
|
}
|
|
E->getAllocatedType().getAsStringInternal(TypeS);
|
|
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::VisitUnresolvedFunctionNameExpr(UnresolvedFunctionNameExpr *E) {
|
|
OS << E->getName().getAsString();
|
|
}
|
|
|
|
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<FunctionTypeNoProto>(AFT)) {
|
|
OS << "()";
|
|
} else if (!BD->param_empty() || cast<FunctionTypeProto>(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);
|
|
OS << ParamStr;
|
|
}
|
|
|
|
const FunctionTypeProto *FT = cast<FunctionTypeProto>(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() const {
|
|
llvm::raw_ostream &OS = llvm::errs();
|
|
printPretty(OS);
|
|
OS.flush();
|
|
}
|
|
|
|
void Stmt::printPretty(llvm::raw_ostream &OS, PrinterHelper* Helper,
|
|
unsigned I, bool NoIndent) const {
|
|
if (this == 0) {
|
|
OS << "<NULL>";
|
|
return;
|
|
}
|
|
|
|
StmtPrinter P(OS, Helper, I, NoIndent);
|
|
P.Visit(const_cast<Stmt*>(this));
|
|
}
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// PrinterHelper
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
// Implement virtual destructor.
|
|
PrinterHelper::~PrinterHelper() {}
|