Language experiments (#2068)

* #include an absolute path didn't work - because paths were taken to always be relative.

* Moved to experiments.
Added some more tests.

* More tests around associated types.

* Return interface tests.

* More tests.

1 files changed, 46 insertions, 0 deletions

diff --git a/tests/experiments/generic/enum-flags.slang b/tests/experiments/generic/enum-flags.slang
new file mode 100644
index 000000000..0ae992e6a
--- /dev/null
+++ b/tests/experiments/generic/enum-flags.slang
@@ -0,0 +1,46 @@
+//DISABLE_TEST(compute):COMPARE_COMPUTE_EX:-slang -compute -shaderobj
+
+/* A test to use generics to treat an enum as a set.
+
+.slang(15): error 30060: expected a type, got a '__BuiltinIntegerType'
+    B value = 0;
+    
+.slang(23): error 30019: expected an expression of type 'int', got 'typeof(uint8_t)'
+    Flags<Enum, uint8_t> flags;
+                ^~~~~~~    
+*/
+
+//TEST_INPUT:ubuffer(data=[0 0 0 0], stride=4):out,name outputBuffer
+RWStructuredBuffer<float> outputBuffer;
+
+enum Enum
+{
+    A = 0x1,
+    B = 0x2, 
+    C = 0x4,
+};
+
+__generic<E, let B : __BuiltinIntegerType>
+struct Flags
+{
+    [mutating] void set(E e) { value |= (B)e; }
+    void isSet(E e) { return (((B)e) & value) != 0; }
+    B value = 0;
+};
+
+[numthreads(4, 1, 1)]
+void computeMain(uint3 dispatchThreadID : SV_DispatchThreadID)
+{
+    int index = dispatchThreadID.x;
+    
+    Flags<Enum, uint8_t> flags;
+
+    if (index & 1)
+    {
+        flags.set(Enum::A);
+    }
+    bool isASet = flags.isSet(Enum::A);
+   
+	outputBuffer[index] = isASet ? 2 : 1;
+}
+