https://llvm.org/bugs/show_bug.cgi?id=30674
Bug ID: 30674
Summary: [libtooling] ASTContext::getObjCInstanceType never
returns null - it creates typedef if type is not known
Product: clang
Version: unspecified
Hardware: PC
OS: All
Status: NEW
Severity: normal
Priority: P
Component: libclang
Assignee: unassignedclangb...@nondot.org
Reporter: akotul...@fb.com
CC: kli...@google.com, llvm-bugs@lists.llvm.org
Classification: Unclassified
Docs for getObjCInstanceType say:
"Retrieve the Objective-C "instancetype" type, if already known;
otherwise, returns a NULL type;"
This is obviously not true, by looking at source code, I also tested it on
clang trunk from August to confirm. It would be great if there was a way to
know if getObjCInstanceType is known or not without creating it.
This is how source code looks like:
QualType getObjCInstanceType() {
return getTypeDeclType(getObjCInstanceTypeDecl());
}
TypedefDecl *getObjCInstanceTypeDecl() {
if (!ObjCInstanceTypeDecl)
ObjCInstanceTypeDecl = TypedefDecl::Create(...)
}
return ObjCInstanceTypeDecl;
}
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