com.google.errorprone.bugpatterns.StreamToString Maven / Gradle / Ivy
/*
* Copyright 2016 The Error Prone 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.errorprone.bugpatterns;
import static com.google.errorprone.BugPattern.SeverityLevel.ERROR;
import static com.google.errorprone.predicates.TypePredicates.isDescendantOf;
import com.google.errorprone.BugPattern;
import com.google.errorprone.VisitorState;
import com.google.errorprone.fixes.Fix;
import com.google.errorprone.predicates.TypePredicate;
import com.sun.source.tree.ExpressionTree;
import com.sun.source.tree.Tree;
import java.util.Optional;
/** A {@link BugChecker}; see the associated {@link BugPattern} annotation for details. */
@BugPattern(
name = "StreamToString",
summary = "Calling toString on a Stream does not provide useful information",
severity = ERROR)
public class StreamToString extends AbstractToString {
private static final TypePredicate STREAM = isDescendantOf("java.util.stream.Stream");
@Override
protected TypePredicate typePredicate() {
return STREAM;
}
@Override
protected Optional implicitToStringFix(ExpressionTree tree, VisitorState state) {
return Optional.empty();
}
@Override
protected Optional toStringFix(Tree parent, ExpressionTree tree, VisitorState state) {
return Optional.empty();
}
}