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/*
* Copyright 2007-2008 Dave Griffith
*
* 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 org.jetbrains.plugins.groovy.codeInspection.threading;
import com.intellij.psi.*;
import org.jetbrains.annotations.Nls;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import org.jetbrains.plugins.groovy.codeInspection.BaseInspection;
import org.jetbrains.plugins.groovy.codeInspection.BaseInspectionVisitor;
import org.jetbrains.plugins.groovy.lang.psi.api.statements.GrSynchronizedStatement;
import org.jetbrains.plugins.groovy.lang.psi.api.statements.GrVariable;
import org.jetbrains.plugins.groovy.lang.psi.api.statements.expressions.GrExpression;
import org.jetbrains.plugins.groovy.lang.psi.api.statements.expressions.GrReferenceExpression;
import org.jetbrains.plugins.groovy.lang.psi.api.statements.expressions.literals.GrLiteral;
public class GroovySynchronizationOnVariableInitializedWithLiteralInspection extends BaseInspection {
@Override
public boolean isEnabledByDefault() {
return true;
}
@Override
@Nls
@NotNull
public String getGroupDisplayName() {
return THREADING_ISSUES;
}
@Override
@Nls
@NotNull
public String getDisplayName() {
return "Synchronization on variable initialized with literal";
}
@Override
@Nullable
protected String buildErrorString(Object... args) {
return "Synchronization on variable '#ref', which was initialized with a literal #loc";
}
@NotNull
@Override
public BaseInspectionVisitor buildVisitor() {
return new Visitor();
}
private static class Visitor extends BaseInspectionVisitor {
@Override
public void visitSynchronizedStatement(GrSynchronizedStatement synchronizedStatement) {
super.visitSynchronizedStatement(synchronizedStatement);
final GrExpression lock = synchronizedStatement.getMonitor();
if (lock == null || !(lock instanceof GrReferenceExpression)) {
return;
}
final PsiElement referent = ((PsiReference) lock).resolve();
if (referent instanceof GrVariable) {
final GrVariable variable = (GrVariable) referent;
final GrExpression initializer = variable.getInitializerGroovy();
if (initializer == null) {
return;
}
if (!(initializer instanceof GrLiteral)) {
return;
}
registerError(lock);
} else if (referent instanceof PsiVariable) {
final PsiVariable variable = (PsiVariable) referent;
final PsiExpression initializer = variable.getInitializer();
if (initializer == null) {
return;
}
if (!(initializer instanceof PsiLiteralExpression)) {
return;
}
registerError(lock);
}
}
}
}
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