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// 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_CASE_STATEMENT_H_
#define SRC_AST_CASE_STATEMENT_H_
#include <vector>
#include "src/ast/block_statement.h"
#include "src/ast/int_literal_expression.h"
namespace tint {
namespace ast {
/// A list of case literals
using CaseSelectorList = std::vector<const IntLiteralExpression*>;
/// A case statement
class CaseStatement : public Castable<CaseStatement, Statement> {
public:
/// Constructor
/// @param pid the identifier of the program that owns this node
/// @param src the source of this node
/// @param selectors the case selectors
/// @param body the case body
CaseStatement(ProgramID pid,
const Source& src,
CaseSelectorList selectors,
const BlockStatement* body);
/// Move constructor
CaseStatement(CaseStatement&&);
~CaseStatement() override;
/// @returns true if this is a default statement
bool IsDefault() const { return selectors.empty(); }
/// Clones this node and all transitive child nodes using the `CloneContext`
/// `ctx`.
/// @param ctx the clone context
/// @return the newly cloned node
const CaseStatement* Clone(CloneContext* ctx) const override;
/// The case selectors, empty if none set
const CaseSelectorList selectors;
/// The case body
const BlockStatement* const body;
};
/// A list of case statements
using CaseStatementList = std::vector<const CaseStatement*>;
} // namespace ast
} // namespace tint
#endif // SRC_AST_CASE_STATEMENT_H_