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/*
* Copyright 2000-2013 JetBrains s.r.o.
*
* 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.siyeh.ig.memory;
import com.intellij.psi.PsiArrayInitializerExpression;
import com.intellij.psi.PsiExpression;
import com.intellij.psi.PsiNewExpression;
import com.siyeh.InspectionGadgetsBundle;
import com.siyeh.ig.BaseInspection;
import com.siyeh.ig.BaseInspectionVisitor;
import com.siyeh.ig.psiutils.ExpressionUtils;
import org.jetbrains.annotations.NotNull;
public class ZeroLengthArrayInitializationInspectionBase extends BaseInspection {
@Override
@NotNull
public String getID() {
return "ZeroLengthArrayAllocation";
}
@Override
@NotNull
public String getDisplayName() {
return InspectionGadgetsBundle.message(
"array.allocation.zero.length.display.name");
}
@Override
@NotNull
public String buildErrorString(Object... infos) {
return InspectionGadgetsBundle.message(
"array.allocation.zero.length.problem.descriptor");
}
@Override
public BaseInspectionVisitor buildVisitor() {
return new ZeroLengthArrayInitializationVisitor();
}
@Override
protected boolean buildQuickFixesOnlyForOnTheFlyErrors() {
return true;
}
private static class ZeroLengthArrayInitializationVisitor
extends BaseInspectionVisitor {
@Override
public void visitNewExpression(
@NotNull PsiNewExpression expression) {
super.visitNewExpression(expression);
if (!ExpressionUtils.isZeroLengthArrayConstruction(expression)) {
return;
}
if (ExpressionUtils.isDeclaredConstant(expression)) {
return;
}
registerError(expression);
}
@Override
public void visitArrayInitializerExpression(
PsiArrayInitializerExpression expression) {
super.visitArrayInitializerExpression(expression);
final PsiExpression[] initializers = expression.getInitializers();
if (initializers.length > 0) {
return;
}
if (expression.getParent() instanceof PsiNewExpression) {
return;
}
if (ExpressionUtils.isDeclaredConstant(expression)) {
return;
}
registerError(expression);
}
}
}
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