com.google.errorprone.bugpatterns.TypeParameterQualifier Maven / Gradle / Ivy
/*
* Copyright 2015 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 com.google.errorprone.BugPattern;
import com.google.errorprone.VisitorState;
import com.google.errorprone.bugpatterns.BugChecker.MemberSelectTreeMatcher;
import com.google.errorprone.fixes.SuggestedFix;
import com.google.errorprone.fixes.SuggestedFixes;
import com.google.errorprone.matchers.Description;
import com.google.errorprone.util.ASTHelpers;
import com.sun.source.tree.MemberSelectTree;
import com.sun.tools.javac.code.Symbol;
import javax.lang.model.element.ElementKind;
/** A {@link BugChecker}; see the associated {@link BugPattern} annotation for details. */
@BugPattern(
name = "TypeParameterQualifier",
summary = "Type parameter used as type qualifier",
severity = ERROR,
suppressionAnnotations = {})
public class TypeParameterQualifier extends BugChecker implements MemberSelectTreeMatcher {
@Override
public Description matchMemberSelect(MemberSelectTree tree, VisitorState state) {
Symbol baseSym = ASTHelpers.getSymbol(tree.getExpression());
if (baseSym == null || baseSym.getKind() != ElementKind.TYPE_PARAMETER) {
return Description.NO_MATCH;
}
SuggestedFix.Builder fix = SuggestedFix.builder();
fix.replace(tree, SuggestedFixes.qualifyType(state, fix, ASTHelpers.getSymbol(tree)));
return describeMatch(tree, fix.build());
}
}