| /* $Id$ |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF 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 org.apache.etch.compiler.opt; |
| |
| import org.apache.etch.compiler.EtchGrammarConstants; |
| import org.apache.etch.compiler.ParseException; |
| import org.apache.etch.compiler.Token; |
| import org.apache.etch.compiler.ast.Except; |
| import org.apache.etch.compiler.ast.Name; |
| import org.apache.etch.compiler.ast.Opt; |
| |
| |
| /** |
| * Option which sets the unchecked attribute of an exception. |
| */ |
| public class Unchecked extends Opt |
| { |
| /** |
| * Constructs the Unchecked. |
| * |
| * @param name |
| * @param args |
| * @throws ParseException |
| */ |
| public Unchecked( Name name, Token... args ) throws ParseException |
| { |
| super( name.name, name.token.beginLine ); |
| addType( Except.class ); |
| |
| if (args.length > 1) |
| throw new ParseException( String.format( |
| "Unchecked accepts one optional boolean argument at line %d", |
| name.token.beginLine ) ); |
| |
| if (args.length > 0) |
| { |
| Token arg = args[0]; |
| if (arg.kind != EtchGrammarConstants.TRUE && |
| arg.kind != EtchGrammarConstants.FALSE) |
| throw new ParseException( String.format( |
| "Unchecked accepts one optional boolean argument at line %d", |
| name.token.beginLine ) ); |
| unchecked = Boolean.parseBoolean( arg.image ); |
| } |
| else |
| { |
| unchecked = true; |
| } |
| } |
| |
| private final boolean unchecked; |
| |
| /** |
| * @return true if the exception should inherit from an unchecked |
| * type (e.g., java's RuntimeException) vs. a checked type (e.g., |
| * java's Exception). |
| */ |
| public boolean isUnchecked() |
| { |
| return unchecked; |
| } |
| |
| @Override |
| public void dump( String indent ) |
| { |
| System.out.printf( "%s@Unchecked\n", indent ); |
| } |
| |
| @Override |
| public String toString() |
| { |
| return String.format( "@Unchecked" ); |
| } |
| } |