| // 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_UNLESS_STATEMENT_H_ |
| #define SRC_AST_UNLESS_STATEMENT_H_ |
| |
| #include <memory> |
| #include <utility> |
| |
| #include "src/ast/expression.h" |
| #include "src/ast/statement.h" |
| |
| namespace tint { |
| namespace ast { |
| |
| /// A unless statement |
| class UnlessStatement : public Statement { |
| public: |
| /// Constructor |
| UnlessStatement(); |
| /// Constructor |
| /// @param condition the condition expression |
| /// @param body the body statements |
| UnlessStatement(std::unique_ptr<Expression> condition, StatementList body); |
| /// Constructor |
| /// @param source the unless statement source |
| /// @param condition the condition expression |
| /// @param body the body statements |
| UnlessStatement(const Source& source, |
| std::unique_ptr<Expression> condition, |
| StatementList body); |
| /// Move constructor |
| UnlessStatement(UnlessStatement&&); |
| ~UnlessStatement() override; |
| |
| /// Sets the condition expression |
| /// @param condition the condition expression |
| void set_condition(std::unique_ptr<Expression> condition) { |
| condition_ = std::move(condition); |
| } |
| /// @returns the condition statements |
| Expression* condition() const { return condition_.get(); } |
| |
| /// Sets the body statements |
| /// @param body the body statements |
| void set_body(StatementList body) { body_ = std::move(body); } |
| /// @returns the body statements |
| const StatementList& body() const { return body_; } |
| |
| /// @returns true if this is an unless statement |
| bool IsUnless() const override; |
| |
| /// @returns true if the node is valid |
| bool IsValid() const override; |
| |
| /// Writes a representation of the node to the output stream |
| /// @param out the stream to write to |
| /// @param indent number of spaces to indent the node when writing |
| void to_str(std::ostream& out, size_t indent) const override; |
| |
| private: |
| UnlessStatement(const UnlessStatement&) = delete; |
| |
| std::unique_ptr<Expression> condition_; |
| StatementList body_; |
| }; |
| |
| } // namespace ast |
| } // namespace tint |
| |
| #endif // SRC_AST_UNLESS_STATEMENT_H_ |