org.sonar.javascript.parser.JavaScriptParser Maven / Gradle / Ivy
/*
* SonarQube JavaScript Plugin
* Copyright (C) 2011-2018 SonarSource SA
* mailto:info AT sonarsource DOT com
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3 of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
package org.sonar.javascript.parser;
import com.sonar.sslr.api.typed.ActionParser;
import java.io.File;
import java.nio.charset.Charset;
import java.util.Iterator;
import org.sonar.javascript.tree.impl.JavaScriptTree;
import org.sonar.plugins.javascript.api.tree.Tree;
import org.sonar.sslr.grammar.GrammarRuleKey;
public class JavaScriptParser extends ActionParser {
public JavaScriptParser(GrammarRuleKey root) {
super(
// we can pass any charset, it's not used. To parse file, we use sting content of it.
Charset.defaultCharset(),
EcmaScriptLexer.createGrammarBuilder(),
JavaScriptGrammar.class,
new TreeFactory(),
new JavaScriptNodeBuilder(),
root);
}
@Override
public Tree parse(File file) {
throw new IllegalStateException("Do not use parse(File) method. Use parse(String) instead.");
}
@Override
public Tree parse(String source) {
return setParents(super.parse(source));
}
private static Tree setParents(Tree tree) {
JavaScriptTree jsTree = (JavaScriptTree) tree;
Iterator childrenIterator = jsTree.childrenIterator();
while (childrenIterator.hasNext()) {
JavaScriptTree child = (JavaScriptTree) childrenIterator.next();
if (child != null) {
child.setParent(tree);
if (!child.isLeaf()) {
setParents(child);
}
}
}
return tree;
}
}