[index] Add the "SpecializationOf" relation to the forward declarations
of class template specializations
This commit fixes an issue where a forward declaration of a class template
specialization was not related to the base template. We need to relate even
forward declarations because specializations don't have to be defined.
rdar://32869409
Differential Revision: https://reviews.llvm.org/D34462
llvm-svn: 305996
diff --git a/clang/lib/Index/IndexDecl.cpp b/clang/lib/Index/IndexDecl.cpp
index 2b03681..d112772 100644
--- a/clang/lib/Index/IndexDecl.cpp
+++ b/clang/lib/Index/IndexDecl.cpp
@@ -611,18 +611,16 @@
ClassTemplateSpecializationDecl *D) {
// FIXME: Notify subsequent callbacks if info comes from implicit
// instantiation.
- if (D->isThisDeclarationADefinition()) {
- llvm::PointerUnion<ClassTemplateDecl *,
- ClassTemplatePartialSpecializationDecl *>
- Template = D->getSpecializedTemplateOrPartial();
- const Decl *SpecializationOf =
- Template.is<ClassTemplateDecl *>()
- ? (Decl *)Template.get<ClassTemplateDecl *>()
- : Template.get<ClassTemplatePartialSpecializationDecl *>();
- IndexCtx.indexTagDecl(
- D, SymbolRelation(SymbolRoleSet(SymbolRole::RelationSpecializationOf),
- SpecializationOf));
- }
+ llvm::PointerUnion<ClassTemplateDecl *,
+ ClassTemplatePartialSpecializationDecl *>
+ Template = D->getSpecializedTemplateOrPartial();
+ const Decl *SpecializationOf =
+ Template.is<ClassTemplateDecl *>()
+ ? (Decl *)Template.get<ClassTemplateDecl *>()
+ : Template.get<ClassTemplatePartialSpecializationDecl *>();
+ IndexCtx.indexTagDecl(
+ D, SymbolRelation(SymbolRoleSet(SymbolRole::RelationSpecializationOf),
+ SpecializationOf));
if (TypeSourceInfo *TSI = D->getTypeAsWritten())
IndexCtx.indexTypeSourceInfo(TSI, /*Parent=*/nullptr,
D->getLexicalDeclContext());