Documentation parsing: if typedef name is being declared
via a macro, try using declaration's starting location.
This is improvement over not having a valid location and
dropping comment altogether. // rdar://14348912
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@187085 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AST/ASTContext.cpp b/lib/AST/ASTContext.cpp
index 8a252f8..8e7b13e 100644
--- a/lib/AST/ASTContext.cpp
+++ b/lib/AST/ASTContext.cpp
@@ -133,8 +133,14 @@
isa<RedeclarableTemplateDecl>(D) ||
isa<ClassTemplateSpecializationDecl>(D))
DeclLoc = D->getLocStart();
- else
+ else {
DeclLoc = D->getLocation();
+ // If location of the typedef name is in a macro, it is because being
+ // declared via a macro. Try using declaration's starting location
+ // as the "declaration location".
+ if (DeclLoc.isMacroID() && isa<TypedefDecl>(D))
+ DeclLoc = D->getLocStart();
+ }
// If the declaration doesn't map directly to a location in a file, we
// can't find the comment.