src/main/java/net/hydromatic/linq4j/expressions/TryStatement.java

/*
// Licensed to Julian Hyde under one or more contributor license
// agreements. See the NOTICE file distributed with this work for
// additional information regarding copyright ownership.
//
// Julian Hyde licenses this file to you 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.
*/
package net.hydromatic.linq4j.expressions;

import java.util.List;

/**
 * Represents a {@code try ... catch ... finally} block.
 */
public class TryStatement extends Statement {
  public final Statement body;
  public final List<CatchBlock> catchBlocks;
  public final Statement finally_;

  public TryStatement(Statement body, List<CatchBlock> catchBlocks,
      Statement finally_) {
    super(ExpressionType.Try, body.getType());
    this.body = body;
    this.catchBlocks = catchBlocks;
    this.finally_ = finally_;
  }

  @Override
  public Statement accept(Visitor visitor) {
    return visitor.visit(this);
  }

  @Override
  void accept0(ExpressionWriter writer) {
    writer.append("try ").append(Blocks.toBlock(body));
    for (CatchBlock catchBlock : catchBlocks) {
      writer.backUp();
      writer.append(" catch (").append(catchBlock.parameter.declString())
          .append(") ").append(Blocks.toBlock(catchBlock.body));
    }
    if (finally_ != null) {
      writer.backUp();
      writer.append(" finally ").append(Blocks.toBlock(finally_));
    }
  }
}

// End TryStatement.java