/*
* ModeShape (http://www.modeshape.org)
*
* 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.
*/
package org.modeshape.sequencer.javafile;
import java.util.Map;
import org.eclipse.jdt.core.JavaCore;
import org.eclipse.jdt.core.dom.AST;
import org.eclipse.jdt.core.dom.ASTNode;
import org.eclipse.jdt.core.dom.ASTParser;
/**
* The Parser, that process the a compilation unit.
*/
public class CompilationUnitParser {
/**
* Parses and process the java source code as a compilation unit and the result it abstract syntax tree (AST) representation
* and this action uses the third edition of java Language Specification, that gets the possibility to support J2SE 5 during
* the parsing.
*
* @param source - the java source to be parsed (i.e. the char[] contains Java source).
* @param resolveBindings - for resolving bindings to get more informations from the unit.
* @return Abstract syntax tree representation.
*/
public static ASTNode runJLS3Conversion( char[] source,
boolean resolveBindings ) {
// needed to be parse 1.5 code
Map<?, ?> options = createCompilerParameters();
// Create parser
ASTParser parser = ASTParser.newParser(AST.JLS3);
parser.setSource(source);
parser.setKind(ASTParser.K_COMPILATION_UNIT);
parser.setResolveBindings(resolveBindings);
parser.setCompilerOptions(options);
// Parse compilation unit
return parser.createAST(null);
}
@SuppressWarnings( "unchecked" )
private static Map<?, ?> createCompilerParameters() {
Map<Object, Object> options = JavaCore.getOptions();
options.put(JavaCore.COMPILER_COMPLIANCE, JavaCore.VERSION_1_7);
options.put(JavaCore.COMPILER_CODEGEN_TARGET_PLATFORM, JavaCore.VERSION_1_7);
options.put(JavaCore.COMPILER_SOURCE, JavaCore.VERSION_1_7);
return options;
}
}