TemplateName.cpp revision 0bd6feb9e9d40fc889fd47e899985125a43dfed8 
1//===--- TemplateName.h - C++ Template Name Representation-------*- C++ -*-===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9//
10//  This file defines the TemplateName interface and subclasses.
11//
12//===----------------------------------------------------------------------===//
13
14#include "clang/AST/TemplateName.h"
15#include "clang/AST/DeclTemplate.h"
16#include "clang/AST/NestedNameSpecifier.h"
17#include "clang/AST/PrettyPrinter.h"
18#include "clang/Basic/LangOptions.h"
19#include "llvm/Support/raw_ostream.h"
20using namespace clang;
21
22TemplateDecl *TemplateName::getAsTemplateDecl() const {
23  if (TemplateDecl *Template = Storage.dyn_cast<TemplateDecl *>())
24    return Template;
25
26  if (QualifiedTemplateName *QTN = getAsQualifiedTemplateName())
27    return QTN->getTemplateDecl();
28
29  return 0;
30}
31
32bool TemplateName::isDependent() const {
33  if (TemplateDecl *Template = getAsTemplateDecl()) {
34    return isa<TemplateTemplateParmDecl>(Template) ||
35      Template->getDeclContext()->isDependentContext();
36  }
37
38  assert(!getAsOverloadedTemplate() &&
39         "overloaded templates shouldn't survive to here");
40
41  return true;
42}
43
44void
45TemplateName::print(llvm::raw_ostream &OS, const PrintingPolicy &Policy,
46                    bool SuppressNNS) const {
47  if (TemplateDecl *Template = Storage.dyn_cast<TemplateDecl *>())
48    OS << Template->getNameAsString();
49  else if (QualifiedTemplateName *QTN = getAsQualifiedTemplateName()) {
50    if (!SuppressNNS)
51      QTN->getQualifier()->print(OS, Policy);
52    if (QTN->hasTemplateKeyword())
53      OS << "template ";
54    OS << QTN->getDecl()->getNameAsString();
55  } else if (DependentTemplateName *DTN = getAsDependentTemplateName()) {
56    if (!SuppressNNS && DTN->getQualifier())
57      DTN->getQualifier()->print(OS, Policy);
58    OS << "template ";
59
60    if (DTN->isIdentifier())
61      OS << DTN->getIdentifier()->getName();
62    else
63      OS << "operator " << getOperatorSpelling(DTN->getOperator());
64  }
65}
66
67void TemplateName::dump() const {
68  LangOptions LO;  // FIXME!
69  LO.CPlusPlus = true;
70  LO.Bool = true;
71  print(llvm::errs(), PrintingPolicy(LO));
72}
73