87 lines
2.7 KiB
C++
87 lines
2.7 KiB
C++
// Copyright 2020 The Tint Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef SRC_AST_UNLESS_STATEMENT_H_
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#define SRC_AST_UNLESS_STATEMENT_H_
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#include <memory>
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#include <utility>
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#include <vector>
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#include "src/ast/expression.h"
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#include "src/ast/statement.h"
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namespace tint {
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namespace ast {
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/// A unless statement
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class UnlessStatement : public Statement {
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public:
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/// Constructor
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UnlessStatement();
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/// Constructor
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/// @param condition the condition expression
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/// @param body the body statements
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UnlessStatement(std::unique_ptr<Expression> condition,
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std::vector<std::unique_ptr<Statement>> body);
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/// Constructor
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/// @param source the initializer source
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/// @param condition the condition expression
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/// @param body the body statements
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UnlessStatement(const Source& source,
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std::unique_ptr<Expression> condition,
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std::vector<std::unique_ptr<Statement>> body);
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/// Move constructor
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UnlessStatement(UnlessStatement&&) = default;
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~UnlessStatement() override;
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/// Sets the condition expression
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/// @param condition the condition expression
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void set_condition(std::unique_ptr<Expression> condition) {
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condition_ = std::move(condition);
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}
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/// @returns the condition statements
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Expression* condition() const { return condition_.get(); }
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/// Sets the body statements
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/// @param body the body statements
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void set_body(std::vector<std::unique_ptr<Statement>> body) {
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body_ = std::move(body);
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}
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/// @returns the body statements
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const std::vector<std::unique_ptr<Statement>>& body() const { return body_; }
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/// @returns true if this is an unless statement
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bool IsUnless() const override { return true; }
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/// @returns true if the node is valid
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bool IsValid() const override;
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/// Writes a representation of the node to the output stream
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/// @param out the stream to write to
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/// @param indent number of spaces to indent the node when writing
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void to_str(std::ostream& out, size_t indent) const override;
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private:
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UnlessStatement(const UnlessStatement&) = delete;
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std::unique_ptr<Expression> condition_;
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std::vector<std::unique_ptr<Statement>> body_;
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};
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} // namespace ast
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} // namespace tint
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#endif // SRC_AST_UNLESS_STATEMENT_H_
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