Merge pull request #1403 from tfoleyNV/struct-inheritance-and-interfaces

Work on struct inheritance and interfaces

1 files changed, 58 insertions, 0 deletions

diff --git a/tests/language-feature/inheritance/struct-inheritance.slang b/tests/language-feature/inheritance/struct-inheritance.slang
new file mode 100644
index 000000000..e2cfaf25b
--- /dev/null
+++ b/tests/language-feature/inheritance/struct-inheritance.slang
@@ -0,0 +1,58 @@
+// struct-inheritance.slang
+
+//TEST(compute):COMPARE_COMPUTE:
+
+// Test that we can define a `struct` type
+// that inherits from another `struct`.
+
+struct Base
+{
+	int a;
+
+	int tweakBase(int val) { return val ^ a; }
+}
+
+struct Derived : Base
+{
+	int b;
+
+	int tweakDerived(int val) { return tweakBase(val) + b; }
+}
+
+int tweak(Base b, int v)
+{
+	return b.tweakBase(v);
+}
+
+//TEST_INPUT:cbuffer(data=[1 2]):name=C
+cbuffer C
+{
+	int x;
+	int y;
+}
+
+int test(int val)
+{
+	Derived d;// = { x, y };
+	d.a = x;
+	d.b = y;
+
+	int result = 0;
+	result = result*16 + d.a;
+	result = result*16 + d.tweakBase(val);
+	result = result*16 + tweak(d, val);
+	result = result*16 + d.tweakDerived(val);
+	return result;
+}
+
+//TEST_INPUT:ubuffer(data=[0 0 0 0], stride=4):out,name=outputBuffer
+RWStructuredBuffer<int> outputBuffer;
+
+[numthreads(4, 1, 1)]
+void computeMain(uint3 dispatchThreadID : SV_DispatchThreadID)
+{
+    uint tid = dispatchThreadID.x;
+    int inVal = tid;
+    int outVal = test(inVal);
+    outputBuffer[tid] = outVal;
+}