Add `IOpaqueDescriptor::descriptorAccess`. (#6967)

* Add `IOpaqueHandle::descriptorAccess`.

* Update doc.

* fix.

1 files changed, 34 insertions, 0 deletions

diff --git a/tests/language-feature/descriptor-handle/desc-handle-4.slang b/tests/language-feature/descriptor-handle/desc-handle-4.slang
new file mode 100644
index 000000000..d04db3175
--- /dev/null
+++ b/tests/language-feature/descriptor-handle/desc-handle-4.slang
@@ -0,0 +1,34 @@
+//TEST:INTERPRET(filecheck=CHECK):
+
+#define CHECK(x) if (!(x)) return false
+
+DescriptorAccess getAccess<T : IOpaqueDescriptor>()
+{
+    return T.descriptorAccess;
+}
+
+bool test()
+{
+    CHECK(getAccess<Texture2D>() == DescriptorAccess.Read);
+    CHECK(getAccess<SamplerState>() == DescriptorAccess.Unknown);
+    CHECK(getAccess<RasterizerOrderedStructuredBuffer<int>>() == DescriptorAccess.RasterizerOrdered);
+    CHECK(getAccess<RWStructuredBuffer<int>>() == DescriptorAccess.ReadWrite);
+    CHECK(getAccess<AppendStructuredBuffer<int>>() == DescriptorAccess.ReadWrite);
+    CHECK(getAccess<ConsumeStructuredBuffer<int>>() == DescriptorAccess.ReadWrite);
+    CHECK(getAccess<StructuredBuffer<int>>() == DescriptorAccess.Read);
+    CHECK(getAccess<ConstantBuffer<int>>() == DescriptorAccess.Read);
+    CHECK(getAccess<RWByteAddressBuffer>() == DescriptorAccess.ReadWrite);
+    CHECK(getAccess<ByteAddressBuffer>() == DescriptorAccess.Read);
+    CHECK(getAccess<RaytracingAccelerationStructure>() == DescriptorAccess.Read);
+    CHECK(getAccess<WTexture2DArray>() == DescriptorAccess.Write);
+    return true;
+}
+
+void main()
+{
+    // CHECK: pass
+    if (test())
+        printf("pass\n");
+    else
+        printf("fail\n");
+}
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