61 lines
1.9 KiB
C++
61 lines
1.9 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_TINT_AST_BLOCK_STATEMENT_H_
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#define SRC_TINT_AST_BLOCK_STATEMENT_H_
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#include <utility>
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#include "src/tint/ast/statement.h"
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namespace tint {
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namespace ast {
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/// A block statement
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class BlockStatement final : public Castable<BlockStatement, Statement> {
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public:
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/// Constructor
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/// @param program_id the identifier of the program that owns this node
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/// @param source the block statement source
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/// @param statements the statements
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BlockStatement(ProgramID program_id,
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const Source& source,
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const StatementList& statements);
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/// Move constructor
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BlockStatement(BlockStatement&&);
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~BlockStatement() override;
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/// @returns true if the block has no statements
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bool Empty() const { return statements.empty(); }
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/// @returns the last statement in the block or nullptr if block empty
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const Statement* Last() const {
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return statements.empty() ? nullptr : statements.back();
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}
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/// Clones this node and all transitive child nodes using the `CloneContext`
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/// `ctx`.
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/// @param ctx the clone context
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/// @return the newly cloned node
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const BlockStatement* Clone(CloneContext* ctx) const override;
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/// the statement list
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const StatementList statements;
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};
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} // namespace ast
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} // namespace tint
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#endif // SRC_TINT_AST_BLOCK_STATEMENT_H_
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