83 lines
2.6 KiB
C++
83 lines
2.6 KiB
C++
// 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_ELSE_STATEMENT_H_
|
|
#define SRC_AST_ELSE_STATEMENT_H_
|
|
|
|
#include <memory>
|
|
#include <utility>
|
|
#include <vector>
|
|
|
|
#include "src/ast/block_statement.h"
|
|
#include "src/ast/expression.h"
|
|
#include "src/ast/statement.h"
|
|
|
|
namespace tint {
|
|
namespace ast {
|
|
|
|
/// An else statement
|
|
class ElseStatement : public Castable<ElseStatement, Statement> {
|
|
public:
|
|
/// Constructor
|
|
/// @param source the source information
|
|
/// @param condition the else condition
|
|
/// @param body the else body
|
|
ElseStatement(const Source& source,
|
|
Expression* condition,
|
|
BlockStatement* body);
|
|
/// Move constructor
|
|
ElseStatement(ElseStatement&&);
|
|
~ElseStatement() override;
|
|
|
|
/// @returns the else condition or nullptr if none set
|
|
Expression* condition() const { return condition_; }
|
|
/// @returns true if the else has a condition
|
|
bool HasCondition() const { return condition_ != nullptr; }
|
|
|
|
/// @returns the else body
|
|
const BlockStatement* body() const { return body_; }
|
|
/// @returns the else body
|
|
BlockStatement* body() { return body_; }
|
|
|
|
/// Clones this node and all transitive child nodes using the `CloneContext`
|
|
/// `ctx`.
|
|
/// @note Semantic information such as resolved expression type and intrinsic
|
|
/// information is not cloned.
|
|
/// @param ctx the clone context
|
|
/// @return the newly cloned node
|
|
ElseStatement* Clone(CloneContext* ctx) 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:
|
|
ElseStatement(const ElseStatement&) = delete;
|
|
|
|
Expression* condition_ = nullptr;
|
|
BlockStatement* body_ = nullptr;
|
|
};
|
|
|
|
/// A list of else statements
|
|
using ElseStatementList = std::vector<ElseStatement*>;
|
|
|
|
} // namespace ast
|
|
} // namespace tint
|
|
|
|
#endif // SRC_AST_ELSE_STATEMENT_H_
|