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[index] The references to enum constants from member enums that are 

from template instantiations should refer to the enum constant in the pattern
enum in the base template

rdar://32325459

llvm-svn: 303651
This commit is contained in:
Alex Lorenz 2017-05-23 16:47:01 +00:00
parent 9d60520608
commit 4bbce51539
2 changed files with 12 additions and 1 deletions
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10
clang/lib/Index/IndexingContext.cpp
View File

@ -130,7 +130,8 @@ bool IndexingContext::isTemplateImplicitInstantiation(const Decl *D) {
} else if (const auto *ED = dyn_cast<EnumDecl>(D)) {
if (ED->getInstantiatedFromMemberEnum())
TKind = ED->getTemplateSpecializationKind();
} else if (isa<FieldDecl>(D) || isa<TypedefNameDecl>(D)) {
} else if (isa<FieldDecl>(D) || isa<TypedefNameDecl>(D) ||
isa<EnumConstantDecl>(D)) {
if (const auto *Parent = dyn_cast<Decl>(D->getDeclContext()))
return isTemplateImplicitInstantiation(Parent);
}
@ -193,6 +194,13 @@ static const Decl *adjustTemplateImplicitInstantiation(const Decl *D) {
return BaseND;
}
}
} else if (const auto *ECD = dyn_cast<EnumConstantDecl>(D)) {
if (const auto *ED = dyn_cast<EnumDecl>(ECD->getDeclContext())) {
if (const EnumDecl *Pattern = ED->getInstantiatedFromMemberEnum()) {
for (const NamedDecl *BaseECD : Pattern->lookup(ECD->getDeclName()))
return BaseECD;
}
}
}
return nullptr;
}

3
clang/test/Index/Core/index-instantiated-source.cpp
View File

@ -46,6 +46,7 @@ public:
enum Enum {
// CHECK: [[@LINE-1]]:10 | enum/C | Enum | c:@ST>2#T#T@TemplateClass@S@NestedType@E@Enum |
EnumCase
// CHECK: [[@LINE-1]]:7 | enumerator/C | EnumCase | c:@ST>2#T#T@TemplateClass@S@NestedType@E@Enum@EnumCase |
};
};
};
@ -82,4 +83,6 @@ void canonicalizeInstaniationReferences(TemplateClass<int, float> &object) {
TT::NestedType::Enum nestedEnum;
// CHECK: [[@LINE-1]]:19 | enum/C | Enum | c:@ST>2#T#T@TemplateClass@S@NestedType@E@Enum |
(void)TT::NestedType::Enum::EnumCase;
// CHECK: [[@LINE-1]]:31 | enumerator/C | EnumCase | c:@ST>2#T#T@TemplateClass@S@NestedType@E@Enum@EnumCase |
}