/*
* Copyright 2011 Google Inc. All Rights Reserved.
*
* 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.errorprone.matchers;
import com.google.errorprone.VisitorState;
import com.sun.source.tree.AnnotationTree;
import com.sun.source.tree.AssignmentTree;
import com.sun.source.tree.ExpressionTree;
import com.sun.source.tree.NewArrayTree;
import com.sun.source.tree.ParenthesizedTree;
import com.sun.source.tree.Tree;
/**
* @author eaftan@google.com (Eddie Aftandilian)
* @author pepstein@google.com (Peter Epstein)
*/
public class AnnotationHasArgumentWithValue implements Matcher<AnnotationTree> {
private final String element;
private final Matcher<ExpressionTree> valueMatcher;
public AnnotationHasArgumentWithValue(String element, Matcher<ExpressionTree> valueMatcher) {
this.element = element;
this.valueMatcher = valueMatcher;
}
@Override
public boolean matches(AnnotationTree annotationTree, VisitorState state) {
for (ExpressionTree argumentTree : annotationTree.getArguments()) {
if (argumentTree.getKind() == Tree.Kind.ASSIGNMENT) {
AssignmentTree assignmentTree = (AssignmentTree) argumentTree;
if (assignmentTree.getVariable().toString().equals(element)) {
ExpressionTree expressionTree = assignmentTree.getExpression();
while (expressionTree instanceof ParenthesizedTree) {
expressionTree = ((ParenthesizedTree) expressionTree).getExpression();
}
if (expressionTree instanceof NewArrayTree) {
NewArrayTree arrayTree = (NewArrayTree) expressionTree;
for (ExpressionTree elementTree : arrayTree.getInitializers()) {
if (valueMatcher.matches(elementTree, state)) {
return true;
}
}
return false;
}
return valueMatcher.matches(expressionTree, state);
}
}
}
return false;
}
}