/*
* 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.CSharpGenericConstraint;
import consulo.csharp.lang.psi.CSharpGenericConstraintKeywordValue;
import consulo.csharp.lang.psi.CSharpGenericConstraintValue;
import consulo.csharp.lang.psi.CSharpTokens;
import consulo.csharp.module.extension.CSharpLanguageVersion;
/**
* @author VISTALL
* @since 17.05.14
*/
public class CS0449 extends CompilerCheck<CSharpGenericConstraintKeywordValue>
{
@RequiredReadAction
@Nullable
@Override
public HighlightInfoFactory checkImpl(@NotNull CSharpLanguageVersion languageVersion, @NotNull CSharpHighlightContext highlightContext, @NotNull CSharpGenericConstraintKeywordValue element)
{
if(element.getKeywordElementType() != CSharpTokens.CLASS_KEYWORD && element.getKeywordElementType() != CSharpTokens.STRUCT_KEYWORD)
{
return null;
}
CSharpGenericConstraint parent = (CSharpGenericConstraint) element.getParent();
CSharpGenericConstraintValue[] genericConstraintValues = parent.getGenericConstraintValues();
return genericConstraintValues[0] != element ? newBuilder(element) : null;
}
}