[libclang] When initializing an ObjC object via the "[[ClassName alloc] init*]" pattern,

report the 'init*' invocation as non-dynamic via clang_Cursor_isDynamicCall.

Of course it is dynamic at runtime, but for purposes of indexing we can treat as an invocation to ClassName's init*.

Addresses rdar://18916871.

llvm-svn: 221641

1 files changed, 10 insertions, 2 deletions

diff --git a/clang/tools/libclang/CXCursor.cpp b/clang/tools/libclang/CXCursor.cpp
index c069781739c..7834181d478 100644
--- a/clang/tools/libclang/CXCursor.cpp
+++ b/clang/tools/libclang/CXCursor.cpp
@@ -1417,8 +1417,16 @@ int clang_Cursor_isDynamicCall(CXCursor C) {
   if (!E)
     return 0;
 
-  if (const ObjCMessageExpr *MsgE = dyn_cast<ObjCMessageExpr>(E))
-    return MsgE->getReceiverKind() == ObjCMessageExpr::Instance;
+  if (const ObjCMessageExpr *MsgE = dyn_cast<ObjCMessageExpr>(E)) {
+    if (MsgE->getReceiverKind() != ObjCMessageExpr::Instance)
+      return false;
+    if (auto *RecE = dyn_cast<ObjCMessageExpr>(
+            MsgE->getInstanceReceiver()->IgnoreParenCasts())) {
+      if (RecE->getMethodFamily() == OMF_alloc)
+        return false;
+    }
+    return true;
+  }
 
   const MemberExpr *ME = nullptr;
   if (isa<MemberExpr>(E))