| // 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_ |