[tint] Move ParameterUsage from sem to core
Change-Id: Ide9d785bfbb52d45933406a953da490f3aaf2a70
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/144127
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: James Price <jrprice@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: Dan Sinclair <dsinclair@chromium.org>
diff --git a/src/tint/lang/core/parameter_usage.h b/src/tint/lang/core/parameter_usage.h
new file mode 100644
index 0000000..53c2604
--- /dev/null
+++ b/src/tint/lang/core/parameter_usage.h
@@ -0,0 +1,74 @@
+// Copyright 2021 The Tint Authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+////////////////////////////////////////////////////////////////////////////////
+// File generated by tools/src/cmd/gen
+// using the template:
+// src/tint/lang/core/parameter_usage.h.tmpl
+//
+// Do not modify this file directly
+////////////////////////////////////////////////////////////////////////////////
+
+#ifndef SRC_TINT_LANG_CORE_PARAMETER_USAGE_H_
+#define SRC_TINT_LANG_CORE_PARAMETER_USAGE_H_
+
+#include <string>
+
+#include "src/tint/utils/traits/traits.h"
+
+namespace tint::core {
+
+/// ParameterUsage is extra metadata for identifying a parameter based on its
+/// overload position
+enum class ParameterUsage {
+ kNone = -1,
+ kArrayIndex,
+ kBias,
+ kComponent,
+ kCoords,
+ kDdx,
+ kDdy,
+ kDepthRef,
+ kLevel,
+ kOffset,
+ kSampleIndex,
+ kSampler,
+ kTexture,
+ kValue,
+ kW,
+ kX,
+ kXy,
+ kXyz,
+ kY,
+ kYz,
+ kZ,
+ kZw,
+ kZyw,
+};
+
+/// @param value the enum value
+/// @returns the string for the given enum value
+std::string_view ToString(ParameterUsage value);
+
+/// @param out the stream to write to
+/// @param value the ParameterUsage
+/// @returns @p out so calls can be chained
+template <typename STREAM, typename = traits::EnableIfIsOStream<STREAM>>
+auto& operator<<(STREAM& out, ParameterUsage value) {
+ return out << ToString(value);
+}
+
+} // namespace tint::core
+
+#endif // SRC_TINT_LANG_CORE_PARAMETER_USAGE_H_
