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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_AST_TYPE_H_
#define SRC_TINT_AST_TYPE_H_
#include "src/tint/program_id.h"
// Forward declarations
namespace tint::ast {
class IdentifierExpression;
} // namespace tint::ast
namespace tint::ast {
/// Type is a thin wrapper around an IdentifierExpression, to help statically disambiguate known
/// type expressions from other expressions.
struct Type {
/// The type expression
const IdentifierExpression* expr = nullptr;
/// Indirection operator for accessing the type's expression
/// @return #expr
const IdentifierExpression* operator->() const { return expr; }
/// Implicit conversion operator to the type's expression
/// @return #expr
operator const IdentifierExpression*() const { return expr; }
};
} // namespace tint::ast
namespace tint {
/// @param type an AST type
/// @returns the ProgramID of the given AST type.
ProgramID ProgramIDOf(ast::Type type);
} // namespace tint
#endif // SRC_TINT_AST_TYPE_H_