org.openrewrite.java.UnwrapParentheses Maven / Gradle / Ivy
/*
* Copyright 2020 the original author or 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
*
* https://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.openrewrite.java;
import org.openrewrite.Cursor;
import org.openrewrite.java.tree.J;
public class UnwrapParentheses {
public static class Scoped extends JavaRefactorVisitor {
private final J.Parentheses scope;
public Scoped(J.Parentheses scope) {
this.scope = scope;
setCursoringOn();
}
@Override
public J visitParentheses(J.Parentheses parens) {
return scope.isScope(parens) && isUnwrappable(getCursor()) ?
parens.getTree().withFormatting(parens.getFormatting()) :
super.visitParentheses(parens);
}
public static boolean isUnwrappable(Cursor parensScope) {
if (!(parensScope.getTree() instanceof J.Parentheses)) {
return false;
}
J parent = parensScope.getParentOrThrow().getTree();
return !(parent instanceof J.DoWhileLoop.While ||
parent instanceof J.If ||
parent instanceof J.Switch ||
parent instanceof J.Synchronized ||
parent instanceof J.Try.Catch ||
parent instanceof J.TypeCast ||
parent instanceof J.WhileLoop);
}
}
}