Support catching Objective C pointers in C++ under the non-fragile NeXT runtime.

Diagnose attempts to do this under the GNU or fragile NeXT runtimes.

llvm-svn: 109298

1 files changed, 6 insertions, 0 deletions

diff --git a/clang/lib/CodeGen/CGObjCRuntime.h b/clang/lib/CodeGen/CGObjCRuntime.h
index 88b18b1a268..bf172f9b1e3 100644
--- a/clang/lib/CodeGen/CGObjCRuntime.h
+++ b/clang/lib/CodeGen/CGObjCRuntime.h
@@ -103,6 +103,12 @@ public:
   virtual llvm::Value *GetSelector(CGBuilderTy &Builder,
                                    const ObjCMethodDecl *Method) = 0;
 
+  /// Get the type constant to catch for the given ObjC pointer type.
+  /// This is used externally to implement catching ObjC types in C++.
+  /// Runtimes which don't support this should add the appropriate
+  /// error to Sema.
+  virtual llvm::Constant *GetEHType(QualType T) = 0;
+
   /// Generate a constant string object.
   virtual llvm::Constant *GenerateConstantString(const StringLiteral *) = 0;