From 42f49937ffa69c82e333e886952eed027e12340e Mon Sep 17 00:00:00 2001
From: Yong He <yonghe@outlook.com>
Date: Tue, 16 Aug 2022 17:11:54 -0700
Subject: Add gfx interface definition in Slang. (#2364)

* Add gfx interface definition in Slang.

- add gfx interface definitons in Slang.
- fix slang compiler to correctly type-check `out` interface argument.
- modify gfx interface to be fully COM compatible
- add convenient ShaderProgram creation methods to gfx.

* Fix compile errors and warnings.

* Update project files

* Fix cuda.

* Properly implement queryInterface in command encoder impls.

Co-authored-by: Yong He <yhe@nvidia.com>
---
 tests/bugs/interface-lvalue.slang | 36 ++++++++++++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)
 create mode 100644 tests/bugs/interface-lvalue.slang

(limited to 'tests/bugs/interface-lvalue.slang')

diff --git a/tests/bugs/interface-lvalue.slang b/tests/bugs/interface-lvalue.slang
new file mode 100644
index 000000000..87cfa54ed
--- /dev/null
+++ b/tests/bugs/interface-lvalue.slang
@@ -0,0 +1,36 @@
+//TEST:EXECUTABLE:
+__target_intrinsic(cpp, "printf(\"%s\\n\", ($0).getBuffer())")
+void writeln(String text);
+
+[COM("BE18F5D2-4522-4AB0-A6EE-1D157FA2B083")]
+interface IFoo
+{
+    int method();
+};
+
+class Impl : IFoo
+{
+    __init() { }
+    int method()
+    {
+        return 0;
+    }
+}
+
+void createFoo(out IFoo val)
+{
+    Impl resuult = new Impl();
+    val = resuult;
+}
+
+public __extern_cpp int main()
+{
+    IFoo v;
+    createFoo(v);
+
+    if (v.method() == 0)
+        writeln("succ");
+    else
+        writeln("fail");
+    return 0;
+}
-- 
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