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// Copyright 2023 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_TINT_LANG_WGSL_SEM_BUILTIN_ENUM_EXPRESSION_H_
#define SRC_TINT_LANG_WGSL_SEM_BUILTIN_ENUM_EXPRESSION_H_
#include "src/tint/lang/wgsl/sem/expression.h"
// Forward declarations
namespace tint::core::type {
class Type;
} // namespace tint::core::type
namespace tint::sem {
/// Base class for BuiltinEnumExpression.
/// Useful for Is() queries.
class BuiltinEnumExpressionBase : public Castable<BuiltinEnumExpressionBase, Expression> {
public:
/// Constructor
/// @param declaration the AST node
/// @param statement the statement that owns this expression
BuiltinEnumExpressionBase(const ast::Expression* declaration, const Statement* statement);
/// Destructor
~BuiltinEnumExpressionBase() override;
};
/// BuiltinEnumExpression holds the semantic information for expression nodes that resolve to a
/// builtin enumerator value.
template <typename ENUM>
class BuiltinEnumExpression
: public Castable<BuiltinEnumExpression<ENUM>, BuiltinEnumExpressionBase> {
public:
/// Constructor
/// @param declaration the AST node
/// @param statement the statement that owns this expression
/// @param value the enumerator value
BuiltinEnumExpression(const ast::Expression* declaration,
const Statement* statement,
ENUM value)
: BuiltinEnumExpression<ENUM>::Base(declaration, statement), value_(value) {}
/// Destructor
~BuiltinEnumExpression() override = default;
/// @return the enumerator value
ENUM Value() const { return value_; }
private:
const ENUM value_;
};
} // namespace tint::sem
#endif // SRC_TINT_LANG_WGSL_SEM_BUILTIN_ENUM_EXPRESSION_H_