1 /***
2 *
3 * Copyright 2004 James Strachan
4 *
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 *
17 **/
18 package org.codehaus.groovy.control;
19
20 import org.codehaus.groovy.syntax.Reduction;
21 import org.codehaus.groovy.syntax.TokenStream;
22 import org.codehaus.groovy.syntax.lexer.GroovyLexer;
23 import org.codehaus.groovy.syntax.lexer.LexerTokenStream;
24 import org.codehaus.groovy.syntax.lexer.ReaderCharStream;
25 import org.codehaus.groovy.syntax.parser.Parser;
26 import org.codehaus.groovy.syntax.parser.ASTBuilder;
27 import org.codehaus.groovy.syntax.parser.ParserException;
28 import org.codehaus.groovy.ast.ModuleNode;
29
30 import java.io.Reader;
31
32 /***
33 * @version $Revision: 1.2 $
34 */
35 public class ClassicParserPlugin implements ParserPlugin {
36
37
38 public Reduction parseCST(SourceUnit sourceUnit, Reader reader) throws CompilationFailedException {
39
40
41
42 GroovyLexer lexer = new GroovyLexer(new ReaderCharStream(reader));
43 TokenStream stream = new LexerTokenStream(lexer);
44
45
46
47 Parser parser = new Parser(sourceUnit, stream);
48 return parser.parse();
49 }
50
51 public ModuleNode buildAST(SourceUnit sourceUnit, ClassLoader classLoader, Reduction cst) throws ParserException {
52 ASTBuilder builder = new ASTBuilder( sourceUnit, classLoader );
53 return builder.build( cst );
54 }
55 }