/*
* Copyright (c) 2013, the Dart project authors.
*
* Licensed under the Eclipse Public License v1.0 (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.eclipse.org/legal/epl-v10.html
*
* 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 com.google.dart.engine.internal.search.pattern;
import com.google.dart.engine.element.Element;
import com.google.dart.engine.search.MatchQuality;
import com.google.dart.engine.search.SearchPattern;
/**
* Instances of the class <code>OrSearchPattern</code> implement a search pattern that matches
* elements that match any one of several other search patterns.
*
* @coverage dart.engine.search
*/
public class OrSearchPattern implements SearchPattern {
/**
* The patterns used to determine whether this pattern matches an element.
*/
private SearchPattern[] patterns;
/**
* Initialize a newly created search pattern to match elements that match any one of several other
* search patterns.
*
* @param patterns the patterns used to determine whether this pattern matches an element
*/
public OrSearchPattern(SearchPattern... patterns) {
this.patterns = patterns;
}
@Override
public MatchQuality matches(Element element) {
// Do we want to return the highest quality of match rather than stopping
// after the first match? Doing so would be more accurate, but slower.
for (SearchPattern pattern : patterns) {
MatchQuality quality = pattern.matches(element);
if (quality != null) {
return quality;
}
}
return null;
}
}