Bug Summary

File:tools/clang/lib/AST/QualTypeNames.cpp
Warning:line 195, column 9
Called C++ object pointer is null

Annotated Source Code

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clang -cc1 -triple x86_64-pc-linux-gnu -analyze -disable-free -disable-llvm-verifier -discard-value-names -main-file-name QualTypeNames.cpp -analyzer-store=region -analyzer-opt-analyze-nested-blocks -analyzer-checker=core -analyzer-checker=apiModeling -analyzer-checker=unix -analyzer-checker=deadcode -analyzer-checker=cplusplus -analyzer-checker=security.insecureAPI.UncheckedReturn -analyzer-checker=security.insecureAPI.getpw -analyzer-checker=security.insecureAPI.gets -analyzer-checker=security.insecureAPI.mktemp -analyzer-checker=security.insecureAPI.mkstemp -analyzer-checker=security.insecureAPI.vfork -analyzer-checker=nullability.NullPassedToNonnull -analyzer-checker=nullability.NullReturnedFromNonnull -analyzer-output plist -w -analyzer-config-compatibility-mode=true -mrelocation-model pic -pic-level 2 -mthread-model posix -mframe-pointer=none -relaxed-aliasing -fmath-errno -masm-verbose -mconstructor-aliases -munwind-tables -fuse-init-array -target-cpu x86-64 -dwarf-column-info -debugger-tuning=gdb -ffunction-sections -fdata-sections -resource-dir /usr/lib/llvm-10/lib/clang/10.0.0 -D CLANG_VENDOR="Debian " -D _DEBUG -D _GNU_SOURCE -D __STDC_CONSTANT_MACROS -D __STDC_FORMAT_MACROS -D __STDC_LIMIT_MACROS -I /build/llvm-toolchain-snapshot-10~svn374877/build-llvm/tools/clang/lib/AST -I /build/llvm-toolchain-snapshot-10~svn374877/tools/clang/lib/AST -I /build/llvm-toolchain-snapshot-10~svn374877/tools/clang/include -I /build/llvm-toolchain-snapshot-10~svn374877/build-llvm/tools/clang/include -I /build/llvm-toolchain-snapshot-10~svn374877/build-llvm/include -I /build/llvm-toolchain-snapshot-10~svn374877/include -U NDEBUG -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/6.3.0/../../../../include/c++/6.3.0 -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/6.3.0/../../../../include/x86_64-linux-gnu/c++/6.3.0 -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/6.3.0/../../../../include/x86_64-linux-gnu/c++/6.3.0 -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/6.3.0/../../../../include/c++/6.3.0/backward -internal-isystem /usr/local/include -internal-isystem /usr/lib/llvm-10/lib/clang/10.0.0/include -internal-externc-isystem /usr/include/x86_64-linux-gnu -internal-externc-isystem /include -internal-externc-isystem /usr/include -O2 -Wno-unused-parameter -Wwrite-strings -Wno-missing-field-initializers -Wno-long-long -Wno-maybe-uninitialized -Wno-comment -std=c++14 -fdeprecated-macro -fdebug-compilation-dir /build/llvm-toolchain-snapshot-10~svn374877/build-llvm/tools/clang/lib/AST -fdebug-prefix-map=/build/llvm-toolchain-snapshot-10~svn374877=. -ferror-limit 19 -fmessage-length 0 -fvisibility-inlines-hidden -stack-protector 2 -fgnuc-version=4.2.1 -fobjc-runtime=gcc -fno-common -fdiagnostics-show-option -vectorize-loops -vectorize-slp -analyzer-output=html -analyzer-config stable-report-filename=true -faddrsig -o /tmp/scan-build-2019-10-15-233810-7101-1 -x c++ /build/llvm-toolchain-snapshot-10~svn374877/tools/clang/lib/AST/QualTypeNames.cpp
1//===------- QualTypeNames.cpp - Generate Complete QualType Names ---------===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
9#include "clang/AST/DeclTemplate.h"
10#include "clang/AST/DeclarationName.h"
11#include "clang/AST/GlobalDecl.h"
12#include "clang/AST/Mangle.h"
13#include "clang/AST/QualTypeNames.h"
14
15#include <stdio.h>
16#include <memory>
17
18namespace clang {
19
20namespace TypeName {
21
22/// Create a NestedNameSpecifier for Namesp and its enclosing
23/// scopes.
24///
25/// \param[in] Ctx - the AST Context to be used.
26/// \param[in] Namesp - the NamespaceDecl for which a NestedNameSpecifier
27/// is requested.
28/// \param[in] WithGlobalNsPrefix - Indicate whether the global namespace
29/// specifier "::" should be prepended or not.
30static NestedNameSpecifier *createNestedNameSpecifier(
31 const ASTContext &Ctx,
32 const NamespaceDecl *Namesp,
33 bool WithGlobalNsPrefix);
34
35/// Create a NestedNameSpecifier for TagDecl and its enclosing
36/// scopes.
37///
38/// \param[in] Ctx - the AST Context to be used.
39/// \param[in] TD - the TagDecl for which a NestedNameSpecifier is
40/// requested.
41/// \param[in] FullyQualify - Convert all template arguments into fully
42/// qualified names.
43/// \param[in] WithGlobalNsPrefix - Indicate whether the global namespace
44/// specifier "::" should be prepended or not.
45static NestedNameSpecifier *createNestedNameSpecifier(
46 const ASTContext &Ctx, const TypeDecl *TD,
47 bool FullyQualify, bool WithGlobalNsPrefix);
48
49static NestedNameSpecifier *createNestedNameSpecifierForScopeOf(
50 const ASTContext &Ctx, const Decl *decl,
51 bool FullyQualified, bool WithGlobalNsPrefix);
52
53static NestedNameSpecifier *getFullyQualifiedNestedNameSpecifier(
54 const ASTContext &Ctx, NestedNameSpecifier *scope, bool WithGlobalNsPrefix);
55
56static bool getFullyQualifiedTemplateName(const ASTContext &Ctx,
57 TemplateName &TName,
58 bool WithGlobalNsPrefix) {
59 bool Changed = false;
60 NestedNameSpecifier *NNS = nullptr;
61
62 TemplateDecl *ArgTDecl = TName.getAsTemplateDecl();
63 // ArgTDecl won't be NULL because we asserted that this isn't a
64 // dependent context very early in the call chain.
65 assert(ArgTDecl != nullptr)((ArgTDecl != nullptr) ? static_cast<void> (0) : __assert_fail
("ArgTDecl != nullptr", "/build/llvm-toolchain-snapshot-10~svn374877/tools/clang/lib/AST/QualTypeNames.cpp"
, 65, __PRETTY_FUNCTION__))
;
4
Assuming the condition is true
5
'?' condition is true
66 QualifiedTemplateName *QTName = TName.getAsQualifiedTemplateName();
67
68 if (QTName && !QTName->hasTemplateKeyword()) {
6
Assuming 'QTName' is non-null
7
Assuming the condition is true
8
Taking true branch
69 NNS = QTName->getQualifier();
70 NestedNameSpecifier *QNNS = getFullyQualifiedNestedNameSpecifier(
9
Calling 'getFullyQualifiedNestedNameSpecifier'
71 Ctx, NNS, WithGlobalNsPrefix);
72 if (QNNS != NNS) {
73 Changed = true;
74 NNS = QNNS;
75 } else {
76 NNS = nullptr;
77 }
78 } else {
79 NNS = createNestedNameSpecifierForScopeOf(
80 Ctx, ArgTDecl, true, WithGlobalNsPrefix);
81 }
82 if (NNS) {
83 TName = Ctx.getQualifiedTemplateName(NNS,
84 /*TemplateKeyword=*/false, ArgTDecl);
85 Changed = true;
86 }
87 return Changed;
88}
89
90static bool getFullyQualifiedTemplateArgument(const ASTContext &Ctx,
91 TemplateArgument &Arg,
92 bool WithGlobalNsPrefix) {
93 bool Changed = false;
94
95 // Note: we do not handle TemplateArgument::Expression, to replace it
96 // we need the information for the template instance decl.
97
98 if (Arg.getKind() == TemplateArgument::Template) {
1
Assuming the condition is true
2
Taking true branch
99 TemplateName TName = Arg.getAsTemplate();
100 Changed = getFullyQualifiedTemplateName(Ctx, TName, WithGlobalNsPrefix);
3
Calling 'getFullyQualifiedTemplateName'
101 if (Changed) {
102 Arg = TemplateArgument(TName);
103 }
104 } else if (Arg.getKind() == TemplateArgument::Type) {
105 QualType SubTy = Arg.getAsType();
106 // Check if the type needs more desugaring and recurse.
107 QualType QTFQ = getFullyQualifiedType(SubTy, Ctx, WithGlobalNsPrefix);
108 if (QTFQ != SubTy) {
109 Arg = TemplateArgument(QTFQ);
110 Changed = true;
111 }
112 }
113 return Changed;
114}
115
116static const Type *getFullyQualifiedTemplateType(const ASTContext &Ctx,
117 const Type *TypePtr,
118 bool WithGlobalNsPrefix) {
119 // DependentTemplateTypes exist within template declarations and
120 // definitions. Therefore we shouldn't encounter them at the end of
121 // a translation unit. If we do, the caller has made an error.
122 assert(!isa<DependentTemplateSpecializationType>(TypePtr))((!isa<DependentTemplateSpecializationType>(TypePtr)) ?
static_cast<void> (0) : __assert_fail ("!isa<DependentTemplateSpecializationType>(TypePtr)"
, "/build/llvm-toolchain-snapshot-10~svn374877/tools/clang/lib/AST/QualTypeNames.cpp"
, 122, __PRETTY_FUNCTION__))
;
123 // In case of template specializations, iterate over the arguments
124 // and fully qualify them as well.
125 if (const auto *TST = dyn_cast<const TemplateSpecializationType>(TypePtr)) {
126 bool MightHaveChanged = false;
127 SmallVector<TemplateArgument, 4> FQArgs;
128 for (TemplateSpecializationType::iterator I = TST->begin(), E = TST->end();
129 I != E; ++I) {
130 // Cheap to copy and potentially modified by
131 // getFullyQualifedTemplateArgument.
132 TemplateArgument Arg(*I);
133 MightHaveChanged |= getFullyQualifiedTemplateArgument(
134 Ctx, Arg, WithGlobalNsPrefix);
135 FQArgs.push_back(Arg);
136 }
137
138 // If a fully qualified arg is different from the unqualified arg,
139 // allocate new type in the AST.
140 if (MightHaveChanged) {
141 QualType QT = Ctx.getTemplateSpecializationType(
142 TST->getTemplateName(), FQArgs,
143 TST->getCanonicalTypeInternal());
144 // getTemplateSpecializationType returns a fully qualified
145 // version of the specialization itself, so no need to qualify
146 // it.
147 return QT.getTypePtr();
148 }
149 } else if (const auto *TSTRecord = dyn_cast<const RecordType>(TypePtr)) {
150 // We are asked to fully qualify and we have a Record Type,
151 // which can point to a template instantiation with no sugar in any of
152 // its template argument, however we still need to fully qualify them.
153
154 if (const auto *TSTDecl =
155 dyn_cast<ClassTemplateSpecializationDecl>(TSTRecord->getDecl())) {
156 const TemplateArgumentList &TemplateArgs = TSTDecl->getTemplateArgs();
157
158 bool MightHaveChanged = false;
159 SmallVector<TemplateArgument, 4> FQArgs;
160 for (unsigned int I = 0, E = TemplateArgs.size(); I != E; ++I) {
161 // cheap to copy and potentially modified by
162 // getFullyQualifedTemplateArgument
163 TemplateArgument Arg(TemplateArgs[I]);
164 MightHaveChanged |= getFullyQualifiedTemplateArgument(
165 Ctx, Arg, WithGlobalNsPrefix);
166 FQArgs.push_back(Arg);
167 }
168
169 // If a fully qualified arg is different from the unqualified arg,
170 // allocate new type in the AST.
171 if (MightHaveChanged) {
172 TemplateName TN(TSTDecl->getSpecializedTemplate());
173 QualType QT = Ctx.getTemplateSpecializationType(
174 TN, FQArgs,
175 TSTRecord->getCanonicalTypeInternal());
176 // getTemplateSpecializationType returns a fully qualified
177 // version of the specialization itself, so no need to qualify
178 // it.
179 return QT.getTypePtr();
180 }
181 }
182 }
183 return TypePtr;
184}
185
186static NestedNameSpecifier *createOuterNNS(const ASTContext &Ctx, const Decl *D,
187 bool FullyQualify,
188 bool WithGlobalNsPrefix) {
189 const DeclContext *DC = D->getDeclContext();
190 if (const auto *NS
16.1
'NS' is non-null
= dyn_cast<NamespaceDecl>(DC)) {
16
Assuming 'DC' is a 'NamespaceDecl'
17
Taking true branch
191 while (NS
17.1
'NS' is non-null
20.1
'NS' is null
&& NS->isInline()) {
18
Loop condition is true. Entering loop body
192 // Ignore inline namespace;
193 NS = dyn_cast<NamespaceDecl>(NS->getDeclContext());
19
Assuming the object is not a 'NamespaceDecl'
20
Null pointer value stored to 'NS'
194 }
195 if (NS->getDeclName()) {
21
Called C++ object pointer is null
196 return createNestedNameSpecifier(Ctx, NS, WithGlobalNsPrefix);
197 }
198 return nullptr; // no starting '::', no anonymous
199 } else if (const auto *TD = dyn_cast<TagDecl>(DC)) {
200 return createNestedNameSpecifier(Ctx, TD, FullyQualify, WithGlobalNsPrefix);
201 } else if (const auto *TDD = dyn_cast<TypedefNameDecl>(DC)) {
202 return createNestedNameSpecifier(
203 Ctx, TDD, FullyQualify, WithGlobalNsPrefix);
204 } else if (WithGlobalNsPrefix && DC->isTranslationUnit()) {
205 return NestedNameSpecifier::GlobalSpecifier(Ctx);
206 }
207 return nullptr; // no starting '::' if |WithGlobalNsPrefix| is false
208}
209
210/// Return a fully qualified version of this name specifier.
211static NestedNameSpecifier *getFullyQualifiedNestedNameSpecifier(
212 const ASTContext &Ctx, NestedNameSpecifier *Scope,
213 bool WithGlobalNsPrefix) {
214 switch (Scope->getKind()) {
10
Control jumps to 'case Namespace:' at line 218
215 case NestedNameSpecifier::Global:
216 // Already fully qualified
217 return Scope;
218 case NestedNameSpecifier::Namespace:
219 return TypeName::createNestedNameSpecifier(
11
Calling 'createNestedNameSpecifier'
220 Ctx, Scope->getAsNamespace(), WithGlobalNsPrefix);
221 case NestedNameSpecifier::NamespaceAlias:
222 // Namespace aliases are only valid for the duration of the
223 // scope where they were introduced, and therefore are often
224 // invalid at the end of the TU. So use the namespace name more
225 // likely to be valid at the end of the TU.
226 return TypeName::createNestedNameSpecifier(
227 Ctx,
228 Scope->getAsNamespaceAlias()->getNamespace()->getCanonicalDecl(),
229 WithGlobalNsPrefix);
230 case NestedNameSpecifier::Identifier:
231 // A function or some other construct that makes it un-namable
232 // at the end of the TU. Skip the current component of the name,
233 // but use the name of it's prefix.
234 return getFullyQualifiedNestedNameSpecifier(
235 Ctx, Scope->getPrefix(), WithGlobalNsPrefix);
236 case NestedNameSpecifier::Super:
237 case NestedNameSpecifier::TypeSpec:
238 case NestedNameSpecifier::TypeSpecWithTemplate: {
239 const Type *Type = Scope->getAsType();
240 // Find decl context.
241 const TagDecl *TD = nullptr;
242 if (const TagType *TagDeclType = Type->getAs<TagType>()) {
243 TD = TagDeclType->getDecl();
244 } else {
245 TD = Type->getAsCXXRecordDecl();
246 }
247 if (TD) {
248 return TypeName::createNestedNameSpecifier(Ctx, TD,
249 true /*FullyQualified*/,
250 WithGlobalNsPrefix);
251 } else if (const auto *TDD = dyn_cast<TypedefType>(Type)) {
252 return TypeName::createNestedNameSpecifier(Ctx, TDD->getDecl(),
253 true /*FullyQualified*/,
254 WithGlobalNsPrefix);
255 }
256 return Scope;
257 }
258 }
259 llvm_unreachable("bad NNS kind")::llvm::llvm_unreachable_internal("bad NNS kind", "/build/llvm-toolchain-snapshot-10~svn374877/tools/clang/lib/AST/QualTypeNames.cpp"
, 259)
;
260}
261
262/// Create a nested name specifier for the declaring context of
263/// the type.
264static NestedNameSpecifier *createNestedNameSpecifierForScopeOf(
265 const ASTContext &Ctx, const Decl *Decl,
266 bool FullyQualified, bool WithGlobalNsPrefix) {
267 assert(Decl)((Decl) ? static_cast<void> (0) : __assert_fail ("Decl"
, "/build/llvm-toolchain-snapshot-10~svn374877/tools/clang/lib/AST/QualTypeNames.cpp"
, 267, __PRETTY_FUNCTION__))
;
268
269 const DeclContext *DC = Decl->getDeclContext()->getRedeclContext();
270 const auto *Outer = dyn_cast_or_null<NamedDecl>(DC);
271 const auto *OuterNS = dyn_cast_or_null<NamespaceDecl>(DC);
272 if (Outer && !(OuterNS && OuterNS->isAnonymousNamespace())) {
273 if (const auto *CxxDecl = dyn_cast<CXXRecordDecl>(DC)) {
274 if (ClassTemplateDecl *ClassTempl =
275 CxxDecl->getDescribedClassTemplate()) {
276 // We are in the case of a type(def) that was declared in a
277 // class template but is *not* type dependent. In clang, it
278 // gets attached to the class template declaration rather than
279 // any specific class template instantiation. This result in
280 // 'odd' fully qualified typename:
281 //
282 // vector<_Tp,_Alloc>::size_type
283 //
284 // Make the situation is 'useable' but looking a bit odd by
285 // picking a random instance as the declaring context.
286 if (ClassTempl->spec_begin() != ClassTempl->spec_end()) {
287 Decl = *(ClassTempl->spec_begin());
288 Outer = dyn_cast<NamedDecl>(Decl);
289 OuterNS = dyn_cast<NamespaceDecl>(Decl);
290 }
291 }
292 }
293
294 if (OuterNS) {
295 return createNestedNameSpecifier(Ctx, OuterNS, WithGlobalNsPrefix);
296 } else if (const auto *TD = dyn_cast<TagDecl>(Outer)) {
297 return createNestedNameSpecifier(
298 Ctx, TD, FullyQualified, WithGlobalNsPrefix);
299 } else if (dyn_cast<TranslationUnitDecl>(Outer)) {
300 // Context is the TU. Nothing needs to be done.
301 return nullptr;
302 } else {
303 // Decl's context was neither the TU, a namespace, nor a
304 // TagDecl, which means it is a type local to a scope, and not
305 // accessible at the end of the TU.
306 return nullptr;
307 }
308 } else if (WithGlobalNsPrefix && DC->isTranslationUnit()) {
309 return NestedNameSpecifier::GlobalSpecifier(Ctx);
310 }
311 return nullptr;
312}
313
314/// Create a nested name specifier for the declaring context of
315/// the type.
316static NestedNameSpecifier *createNestedNameSpecifierForScopeOf(
317 const ASTContext &Ctx, const Type *TypePtr,
318 bool FullyQualified, bool WithGlobalNsPrefix) {
319 if (!TypePtr) return nullptr;
320
321 Decl *Decl = nullptr;
322 // There are probably other cases ...
323 if (const auto *TDT = dyn_cast<TypedefType>(TypePtr)) {
324 Decl = TDT->getDecl();
325 } else if (const auto *TagDeclType = dyn_cast<TagType>(TypePtr)) {
326 Decl = TagDeclType->getDecl();
327 } else if (const auto *TST = dyn_cast<TemplateSpecializationType>(TypePtr)) {
328 Decl = TST->getTemplateName().getAsTemplateDecl();
329 } else {
330 Decl = TypePtr->getAsCXXRecordDecl();
331 }
332
333 if (!Decl) return nullptr;
334
335 return createNestedNameSpecifierForScopeOf(
336 Ctx, Decl, FullyQualified, WithGlobalNsPrefix);
337}
338
339NestedNameSpecifier *createNestedNameSpecifier(const ASTContext &Ctx,
340 const NamespaceDecl *Namespace,
341 bool WithGlobalNsPrefix) {
342 while (Namespace && Namespace->isInline()) {
12
Assuming 'Namespace' is non-null
13
Loop condition is false. Execution continues on line 346
343 // Ignore inline namespace;
344 Namespace = dyn_cast<NamespaceDecl>(Namespace->getDeclContext());
345 }
346 if (!Namespace
13.1
'Namespace' is non-null
) return nullptr;
14
Taking false branch
347
348 bool FullyQualified = true; // doesn't matter, DeclContexts are namespaces
349 return NestedNameSpecifier::Create(
350 Ctx,
351 createOuterNNS(Ctx, Namespace, FullyQualified, WithGlobalNsPrefix),
15
Calling 'createOuterNNS'
352 Namespace);
353}
354
355NestedNameSpecifier *createNestedNameSpecifier(const ASTContext &Ctx,
356 const TypeDecl *TD,
357 bool FullyQualify,
358 bool WithGlobalNsPrefix) {
359 return NestedNameSpecifier::Create(
360 Ctx,
361 createOuterNNS(Ctx, TD, FullyQualify, WithGlobalNsPrefix),
362 false /*No TemplateKeyword*/,
363 TD->getTypeForDecl());
364}
365
366/// Return the fully qualified type, including fully-qualified
367/// versions of any template parameters.
368QualType getFullyQualifiedType(QualType QT, const ASTContext &Ctx,
369 bool WithGlobalNsPrefix) {
370 // In case of myType* we need to strip the pointer first, fully
371 // qualify and attach the pointer once again.
372 if (isa<PointerType>(QT.getTypePtr())) {
373 // Get the qualifiers.
374 Qualifiers Quals = QT.getQualifiers();
375 QT = getFullyQualifiedType(QT->getPointeeType(), Ctx, WithGlobalNsPrefix);
376 QT = Ctx.getPointerType(QT);
377 // Add back the qualifiers.
378 QT = Ctx.getQualifiedType(QT, Quals);
379 return QT;
380 }
381
382 if (auto *MPT = dyn_cast<MemberPointerType>(QT.getTypePtr())) {
383 // Get the qualifiers.
384 Qualifiers Quals = QT.getQualifiers();
385 // Fully qualify the pointee and class types.
386 QT = getFullyQualifiedType(QT->getPointeeType(), Ctx, WithGlobalNsPrefix);
387 QualType Class = getFullyQualifiedType(QualType(MPT->getClass(), 0), Ctx,
388 WithGlobalNsPrefix);
389 QT = Ctx.getMemberPointerType(QT, Class.getTypePtr());
390 // Add back the qualifiers.
391 QT = Ctx.getQualifiedType(QT, Quals);
392 return QT;
393 }
394
395 // In case of myType& we need to strip the reference first, fully
396 // qualify and attach the reference once again.
397 if (isa<ReferenceType>(QT.getTypePtr())) {
398 // Get the qualifiers.
399 bool IsLValueRefTy = isa<LValueReferenceType>(QT.getTypePtr());
400 Qualifiers Quals = QT.getQualifiers();
401 QT = getFullyQualifiedType(QT->getPointeeType(), Ctx, WithGlobalNsPrefix);
402 // Add the r- or l-value reference type back to the fully
403 // qualified one.
404 if (IsLValueRefTy)
405 QT = Ctx.getLValueReferenceType(QT);
406 else
407 QT = Ctx.getRValueReferenceType(QT);
408 // Add back the qualifiers.
409 QT = Ctx.getQualifiedType(QT, Quals);
410 return QT;
411 }
412
413 // Remove the part of the type related to the type being a template
414 // parameter (we won't report it as part of the 'type name' and it
415 // is actually make the code below to be more complex (to handle
416 // those)
417 while (isa<SubstTemplateTypeParmType>(QT.getTypePtr())) {
418 // Get the qualifiers.
419 Qualifiers Quals = QT.getQualifiers();
420
421 QT = cast<SubstTemplateTypeParmType>(QT.getTypePtr())->desugar();
422
423 // Add back the qualifiers.
424 QT = Ctx.getQualifiedType(QT, Quals);
425 }
426
427 NestedNameSpecifier *Prefix = nullptr;
428 // Local qualifiers are attached to the QualType outside of the
429 // elaborated type. Retrieve them before descending into the
430 // elaborated type.
431 Qualifiers PrefixQualifiers = QT.getLocalQualifiers();
432 QT = QualType(QT.getTypePtr(), 0);
433 ElaboratedTypeKeyword Keyword = ETK_None;
434 if (const auto *ETypeInput = dyn_cast<ElaboratedType>(QT.getTypePtr())) {
435 QT = ETypeInput->getNamedType();
436 assert(!QT.hasLocalQualifiers())((!QT.hasLocalQualifiers()) ? static_cast<void> (0) : __assert_fail
("!QT.hasLocalQualifiers()", "/build/llvm-toolchain-snapshot-10~svn374877/tools/clang/lib/AST/QualTypeNames.cpp"
, 436, __PRETTY_FUNCTION__))
;
437 Keyword = ETypeInput->getKeyword();
438 }
439 // Create a nested name specifier if needed.
440 Prefix = createNestedNameSpecifierForScopeOf(Ctx, QT.getTypePtr(),
441 true /*FullyQualified*/,
442 WithGlobalNsPrefix);
443
444 // In case of template specializations iterate over the arguments and
445 // fully qualify them as well.
446 if (isa<const TemplateSpecializationType>(QT.getTypePtr()) ||
447 isa<const RecordType>(QT.getTypePtr())) {
448 // We are asked to fully qualify and we have a Record Type (which
449 // may point to a template specialization) or Template
450 // Specialization Type. We need to fully qualify their arguments.
451
452 const Type *TypePtr = getFullyQualifiedTemplateType(
453 Ctx, QT.getTypePtr(), WithGlobalNsPrefix);
454 QT = QualType(TypePtr, 0);
455 }
456 if (Prefix || Keyword != ETK_None) {
457 QT = Ctx.getElaboratedType(Keyword, Prefix, QT);
458 }
459 QT = Ctx.getQualifiedType(QT, PrefixQualifiers);
460 return QT;
461}
462
463std::string getFullyQualifiedName(QualType QT,
464 const ASTContext &Ctx,
465 const PrintingPolicy &Policy,
466 bool WithGlobalNsPrefix) {
467 QualType FQQT = getFullyQualifiedType(QT, Ctx, WithGlobalNsPrefix);
468 return FQQT.getAsString(Policy);
469}
470
471} // end namespace TypeName
472} // end namespace clang