Add COM API for querying metadata. (#5168)

* Add COM API for querying metadata.

* Fix tests.

* fix test.

1 files changed, 20 insertions, 0 deletions

diff --git a/source/compiler-core/slang-artifact-associated-impl.cpp b/source/compiler-core/slang-artifact-associated-impl.cpp
index f29c0f596..07d69bf8e 100644
--- a/source/compiler-core/slang-artifact-associated-impl.cpp
+++ b/source/compiler-core/slang-artifact-associated-impl.cpp
@@ -313,4 +313,24 @@ Slice<String> ArtifactPostEmitMetadata::getExportedFunctionMangledNames()
     return Slice<String>(m_exportedFunctionMangledNames.getBuffer(), m_exportedFunctionMangledNames.getCount());
 }
 
+SlangResult ArtifactPostEmitMetadata::isParameterLocationUsed(
+    SlangParameterCategory category,
+    SlangUInt spaceIndex,
+    SlangUInt registerIndex,
+    bool& outUsed)
+{
+    for (const auto& range : getUsedBindingRanges())
+    {
+        if (range.containsBinding((slang::ParameterCategory)category, spaceIndex, registerIndex))
+        {
+            outUsed = true;
+            return SLANG_OK;
+        }
+    }
+
+    outUsed = false;
+    return SLANG_OK;
+}
+
+
 } // namespace Slang