[CodeCompletion] Show protocol properties that are accessed through qualified id

This commit improves code completion for properties that are declared in
Objective-C protocols by making sure that properties show up in completions
when they are accessed through a qualified id.

rdar://24426041

Differential Revision: https://reviews.llvm.org/D25436

llvm-svn: 284007

1 files changed, 24 insertions, 0 deletions

diff --git a/clang/test/CodeCompletion/objc-protocol-member-access.m b/clang/test/CodeCompletion/objc-protocol-member-access.m
new file mode 100644
index 00000000000..0ed55387e3d
--- /dev/null
+++ b/clang/test/CodeCompletion/objc-protocol-member-access.m
@@ -0,0 +1,24 @@
+// Note: the run lines follow their respective tests, since line/column
+// matter in this test.
+
+@protocol Bar
+@property (readonly) int bar;
+@end
+
+@protocol Foo <Bar>
+
+@property (nonatomic, readonly) int foo;
+- (void)foobar: (int)x;
+
+@end
+
+int getFoo(id object) {
+  id<Foo> modelObject = (id<Foo>)object;
+  int foo = modelObject.;
+  return foo;
+}
+
+// RUN: %clang_cc1 -fsyntax-only -code-completion-at=%s:17:25 %s -o - | FileCheck %s
+// CHECK: bar : [#int#]bar
+// CHECK: foo : [#int#]foo
+// CHECK-NOT: foobar