From 8b6793aa52d2034ae5ce1851c7e13853390fbb00 Mon Sep 17 00:00:00 2001
From: David Chisnall <theraven@FreeBSD.org>
Date: Tue, 20 Mar 2018 15:23:40 +0000
Subject: [PATCH] Add a test for forward declared protocols.

Check that a protocol accessed by forward definition in one compilation
unit is the one defined in another compilation unit.
---
 Test/CMakeLists.txt                 |  1 +
 Test/ForwardDeclareProtocol.m       |  6 ++++++
 Test/ForwardDeclareProtocolAccess.m | 17 +++++++++++++++++
 3 files changed, 24 insertions(+)
 create mode 100644 Test/ForwardDeclareProtocol.m
 create mode 100644 Test/ForwardDeclareProtocolAccess.m

diff --git a/Test/CMakeLists.txt b/Test/CMakeLists.txt
index d938432..64e644c 100644
--- a/Test/CMakeLists.txt
+++ b/Test/CMakeLists.txt
@@ -104,6 +104,7 @@ endforeach()
 
 # Tests that are more than a single file.
 addtest_variants("CXXExceptions" "CXXException.m;CXXException.cc" true)
+addtest_variants("ForwardDeclareProtocolAccess" "ForwardDeclareProtocolAccess.m;ForwardDeclareProtocol.m" true)
 if (ENABLE_OBJCXX)
 addtest_variants(ObjCXXEHInterop "ObjCXXEHInterop.mm;ObjCXXEHInterop.m" true)
 endif()
diff --git a/Test/ForwardDeclareProtocol.m b/Test/ForwardDeclareProtocol.m
new file mode 100644
index 0000000..89a7f6f
--- /dev/null
+++ b/Test/ForwardDeclareProtocol.m
@@ -0,0 +1,6 @@
+@protocol P;
+
+Protocol *getProtocol(void)
+{
+	return @protocol(P);
+}
diff --git a/Test/ForwardDeclareProtocolAccess.m b/Test/ForwardDeclareProtocolAccess.m
new file mode 100644
index 0000000..f8da5e5
--- /dev/null
+++ b/Test/ForwardDeclareProtocolAccess.m
@@ -0,0 +1,17 @@
+#include "Test.h"
+
+@protocol P
+- (void)someMethod;
+@end
+
+// Defined in another compilation unit.  Returns @protocol(P).
+Protocol *getProtocol(void);
+
+int main(void)
+{
+	//Protocol *p1 = @protocol(P);
+	Protocol *p2 = getProtocol();
+	//assert(protocol_isEqual(p1, p2));
+	//assert(p1 == p2);
+	return 0;
+}