forked from OSchip/llvm-project
62 lines
2.0 KiB
C++
62 lines
2.0 KiB
C++
//===--- NestedNameSpecifier.cpp - C++ nested name specifiers -----*- C++ -*-=//
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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 defines the NestedNameSpecifier class, which represents
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// a C++ nested-name-specifier.
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//
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//===----------------------------------------------------------------------===//
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#include "clang/AST/NestedNameSpecifier.h"
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#include "clang/AST/ASTContext.h"
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#include "clang/AST/Decl.h"
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#include "clang/AST/Type.h"
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#include "llvm/Support/raw_ostream.h"
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using namespace clang;
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DeclContext *
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NestedNameSpecifier::computeDeclContext(ASTContext &Context) const {
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// The simple case: we're storing a DeclContext
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if ((Data & 0x01) == 0)
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return reinterpret_cast<DeclContext *>(Data);
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Type *T = getAsType();
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if (!T)
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return 0;
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// Retrieve the DeclContext associated with this type.
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const TagType *TagT = T->getAsTagType();
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assert(TagT && "No DeclContext from a non-tag type");
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return TagT->getDecl();
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}
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void NestedNameSpecifier::Print(llvm::raw_ostream &OS,
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const NestedNameSpecifier *First,
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const NestedNameSpecifier *Last) {
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for (; First != Last; ++First) {
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if (Type *T = First->getAsType()) {
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std::string TypeStr;
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// If this is a qualified name type, suppress the qualification:
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// it's part of our nested-name-specifier sequence anyway.
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if (const QualifiedNameType *QualT = dyn_cast<QualifiedNameType>(T))
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T = QualT->getNamedType().getTypePtr();
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if (const TagType *TagT = dyn_cast<TagType>(T))
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TagT->getAsStringInternal(TypeStr, true);
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else
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T->getAsStringInternal(TypeStr);
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OS << TypeStr;
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} else if (NamedDecl *NamedDC
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= dyn_cast_or_null<NamedDecl>(First->getAsDeclContext()))
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OS << NamedDC->getNameAsString();
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OS << "::";
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}
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}
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