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// Copyright 2022 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_MATERIALIZE_H_
#define SRC_TINT_LANG_WGSL_SEM_MATERIALIZE_H_
#include "src/tint/lang/wgsl/sem/value_expression.h"
namespace tint::sem {
/// Materialize is a semantic expression which represents the materialization of a value of an
/// abstract numeric type to a value of a concrete type.
/// Abstract numeric materialization is implicit in WGSL, so the Materialize semantic node shares
/// the same AST node as the inner semantic node.
/// Abstract numerics types may only be used by compile-time expressions, so a Materialize semantic
/// node must have a valid Constant value.
class Materialize final : public Castable<Materialize, ValueExpression> {
public:
/// Constructor
/// @param expr the inner expression, being materialized
/// @param statement the statement that owns this expression
/// @param type concrete type to materialize to
/// @param constant the constant value of this expression or nullptr
Materialize(const ValueExpression* expr,
const Statement* statement,
const type::Type* type,
const constant::Value* constant);
/// Destructor
~Materialize() override;
/// @return the expression being materialized
const ValueExpression* Expr() const { return expr_; }
private:
ValueExpression const* const expr_;
};
} // namespace tint::sem
#endif // SRC_TINT_LANG_WGSL_SEM_MATERIALIZE_H_