TemplateName.cpp revision 900fc6388e803868a34b9483510c345e9b49d7eb 
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/Diagnostic.h"
19#include "clang/Basic/LangOptions.h"
20#include "llvm/Support/raw_ostream.h"
21using namespace clang;
22using namespace llvm;
23
24TemplateDecl *TemplateName::getAsTemplateDecl() const {
25  if (TemplateDecl *Template = Storage.dyn_cast<TemplateDecl *>())
26    return Template;
27
28  if (QualifiedTemplateName *QTN = getAsQualifiedTemplateName())
29    return QTN->getTemplateDecl();
30
31  return 0;
32}
33
34bool TemplateName::isDependent() const {
35  if (TemplateDecl *Template = getAsTemplateDecl()) {
36    return isa<TemplateTemplateParmDecl>(Template) ||
37      Template->getDeclContext()->isDependentContext();
38  }
39
40  assert(!getAsOverloadedTemplate() &&
41         "overloaded templates shouldn't survive to here");
42
43  return true;
44}
45
46void
47TemplateName::print(llvm::raw_ostream &OS, const PrintingPolicy &Policy,
48                    bool SuppressNNS) const {
49  if (TemplateDecl *Template = Storage.dyn_cast<TemplateDecl *>())
50    OS << Template;
51  else if (QualifiedTemplateName *QTN = getAsQualifiedTemplateName()) {
52    if (!SuppressNNS)
53      QTN->getQualifier()->print(OS, Policy);
54    if (QTN->hasTemplateKeyword())
55      OS << "template ";
56    OS << QTN->getDecl();
57  } else if (DependentTemplateName *DTN = getAsDependentTemplateName()) {
58    if (!SuppressNNS && DTN->getQualifier())
59      DTN->getQualifier()->print(OS, Policy);
60    OS << "template ";
61
62    if (DTN->isIdentifier())
63      OS << DTN->getIdentifier()->getName();
64    else
65      OS << "operator " << getOperatorSpelling(DTN->getOperator());
66  }
67}
68
69const DiagnosticBuilder &clang::operator<<(const DiagnosticBuilder &DB,
70                                           TemplateName N) {
71  std::string NameStr;
72  raw_string_ostream OS(NameStr);
73  LangOptions LO;
74  LO.CPlusPlus = true;
75  LO.Bool = true;
76  N.print(OS, PrintingPolicy(LO));
77  OS.flush();
78  return DB << NameStr;
79}
80
81void TemplateName::dump() const {
82  LangOptions LO;  // FIXME!
83  LO.CPlusPlus = true;
84  LO.Bool = true;
85  print(llvm::errs(), PrintingPolicy(LO));
86}
87