diff options
| -rw-r--r-- | clang/include/clang/AST/DeclBase.h | 3 | ||||
| -rw-r--r-- | clang/lib/AST/DeclBase.cpp | 7 |
2 files changed, 10 insertions, 0 deletions
diff --git a/clang/include/clang/AST/DeclBase.h b/clang/include/clang/AST/DeclBase.h index 37ce07b6db6..0d521200170 100644 --- a/clang/include/clang/AST/DeclBase.h +++ b/clang/include/clang/AST/DeclBase.h @@ -1141,6 +1141,9 @@ public: void dump(raw_ostream &Out, bool Deserialize = false) const; + /// \return Unique reproducible object identifier + int64_t getID() const; + /// Looks through the Decl's underlying type to extract a FunctionType /// when possible. Will return null if the type underlying the Decl does not /// have a FunctionType. diff --git a/clang/lib/AST/DeclBase.cpp b/clang/lib/AST/DeclBase.cpp index 796b5325ee8..6bb2034a9ea 100644 --- a/clang/lib/AST/DeclBase.cpp +++ b/clang/lib/AST/DeclBase.cpp @@ -930,6 +930,13 @@ bool Decl::AccessDeclContextSanity() const { static Decl::Kind getKind(const Decl *D) { return D->getKind(); } static Decl::Kind getKind(const DeclContext *DC) { return DC->getDeclKind(); } +int64_t Decl::getID() const { + Optional<int64_t> Out = getASTContext().getAllocator().identifyObject(this); + assert(Out && "Wrong allocator used"); + assert(*Out % alignof(Decl) == 0 && "Wrong alignment information"); + return *Out / alignof(Decl); +} + const FunctionType *Decl::getFunctionType(bool BlocksToo) const { QualType Ty; if (const auto *D = dyn_cast<ValueDecl>(this)) |
