com.google.javascript.refactoring.JsFlumeCallback Maven / Gradle / Ivy
/*
* Copyright 2014 The Closure Compiler Authors.
*
* 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 com.google.javascript.refactoring;
import com.google.common.base.Strings;
import com.google.javascript.jscomp.NodeTraversal;
import com.google.javascript.jscomp.NodeTraversal.Callback;
import com.google.javascript.rhino.Node;
import java.util.ArrayList;
import java.util.List;
import java.util.regex.Pattern;
/**
* A compiler node traversal callback that invokes matchers against every node and
* keeps track of any suggested fixes from the refactoring.
*
* @author [email protected] (Mark Knichel)
*/
final class JsFlumeCallback implements Callback {
private final Scanner scanner;
private final Pattern includeFilePattern;
private final List matches = new ArrayList<>();
private final List fixes = new ArrayList<>();
JsFlumeCallback(Scanner scanner, Pattern includeFilePattern) {
this.scanner = scanner;
this.includeFilePattern = includeFilePattern;
}
List getMatches() {
return matches;
}
List getFixes() {
return fixes;
}
@Override
public boolean shouldTraverse(NodeTraversal nodeTraversal, Node n, Node parent) {
if (n.isFromExterns()) {
return false;
}
String filename = n.getSourceFileName();
if (includeFilePattern != null
&& !Strings.isNullOrEmpty(includeFilePattern.pattern())
&& !Strings.isNullOrEmpty(filename)) {
return includeFilePattern.matcher(filename).find();
}
return true;
}
@Override
public void visit(NodeTraversal t, Node n, Node parent) {
NodeMetadata metadata = new NodeMetadata(t.getCompiler());
if (scanner.matches(n, metadata)) {
Match match = new Match(n, metadata);
fixes.addAll(scanner.processMatch(match));
matches.add(match);
}
}
}