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// Copyright 2020 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.
#ifndef SRC_AST_OVERRIDE_ATTRIBUTE_H_
#define SRC_AST_OVERRIDE_ATTRIBUTE_H_
#include <string>
#include "src/ast/attribute.h"
namespace tint {
namespace ast {
/// An override attribute
class OverrideAttribute : public Castable<OverrideAttribute, Attribute> {
public:
/// Create an override attribute with no specified id.
/// @param pid the identifier of the program that owns this node
/// @param src the source of this node
OverrideAttribute(ProgramID pid, const Source& src);
/// Create an override attribute with a specific id value.
/// @param pid the identifier of the program that owns this node
/// @param src the source of this node
/// @param val the override value
OverrideAttribute(ProgramID pid, const Source& src, uint32_t val);
~OverrideAttribute() override;
/// @returns the WGSL name for the attribute
std::string Name() const override;
/// Clones this node and all transitive child nodes using the `CloneContext`
/// `ctx`.
/// @param ctx the clone context
/// @return the newly cloned node
const OverrideAttribute* Clone(CloneContext* ctx) const override;
/// True if an override id was specified
const bool has_value;
/// The override id value
const uint32_t value;
};
} // namespace ast
} // namespace tint
#endif // SRC_AST_OVERRIDE_ATTRIBUTE_H_