/*
* Copyright 2013-2017 consulo.io
*
* 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 consulo.csharp.ide.highlight.check.impl;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import consulo.annotations.RequiredReadAction;
import consulo.csharp.ide.highlight.CSharpHighlightContext;
import consulo.csharp.ide.highlight.check.CompilerCheck;
import consulo.csharp.lang.psi.CSharpReferenceExpression;
import consulo.csharp.lang.psi.impl.source.CSharpAssignmentExpressionImpl;
import consulo.csharp.lang.psi.impl.source.CSharpLocalVariableUtil;
import consulo.csharp.module.extension.CSharpLanguageVersion;
import consulo.dotnet.psi.DotNetExpression;
import consulo.dotnet.psi.DotNetVariable;
import com.intellij.psi.PsiElement;
/**
* @author VISTALL
* @since 08-Jun-16
*/
public class CS1656 extends CompilerCheck<CSharpAssignmentExpressionImpl>
{
private static final String ourForeachVariable = "foreach iteration variable";
@RequiredReadAction
@Nullable
@Override
public HighlightInfoFactory checkImpl(@NotNull CSharpLanguageVersion languageVersion, @NotNull CSharpHighlightContext highlightContext, @NotNull CSharpAssignmentExpressionImpl element)
{
DotNetExpression leftExpression = element.getLeftExpression();
if(leftExpression instanceof CSharpReferenceExpression)
{
PsiElement resolvedElement = ((CSharpReferenceExpression) leftExpression).resolve();
if(resolvedElement instanceof DotNetVariable && CSharpLocalVariableUtil.isForeachVariable((DotNetVariable) resolvedElement))
{
return newBuilder(leftExpression, formatElement(resolvedElement), ourForeachVariable);
}
}
return super.checkImpl(languageVersion, highlightContext, element);
}
}