/*
* 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.findUsage.usageType;
import org.jetbrains.annotations.Nullable;
import consulo.csharp.lang.psi.CSharpFieldDeclaration;
import consulo.csharp.lang.psi.CSharpLocalVariable;
import consulo.csharp.lang.psi.CSharpMethodDeclaration;
import consulo.csharp.lang.psi.CSharpReferenceExpression;
import consulo.csharp.lang.psi.CSharpSimpleLikeMethodAsElement;
import consulo.csharp.lang.psi.impl.source.CSharpAsExpressionImpl;
import consulo.csharp.lang.psi.impl.source.CSharpIsExpressionImpl;
import consulo.csharp.lang.psi.impl.source.CSharpTypeCastExpressionImpl;
import consulo.dotnet.psi.DotNetAttribute;
import consulo.dotnet.psi.DotNetParameter;
import consulo.dotnet.psi.DotNetType;
import com.intellij.psi.PsiElement;
import com.intellij.psi.util.PsiTreeUtil;
import com.intellij.usages.impl.rules.UsageType;
import com.intellij.usages.impl.rules.UsageTypeProvider;
/**
* @author VISTALL
* @since 01.11.14
*/
public class CSharpUsageTypeProvider implements UsageTypeProvider
{
public static final UsageType AS_METHOD_REF = new UsageType("As method reference");
public static final UsageType METHOD_CALL = new UsageType("Method call");
public static final UsageType ATTRIBUTE = new UsageType("Attribute");
public static final UsageType CLASS_IN_AS = new UsageType("Usage in 'as'");
public static final UsageType CLASS_IN_IS = new UsageType("Usage in 'is'");
@Nullable
@Override
public UsageType getUsageType(PsiElement element)
{
if(element instanceof CSharpReferenceExpression)
{
PsiElement resolve = ((CSharpReferenceExpression) element).resolve();
if(resolve == null)
{
return null;
}
CSharpReferenceExpression.ResolveToKind kind = ((CSharpReferenceExpression) element).kind();
switch(kind)
{
case METHOD:
return METHOD_CALL;
case CONSTRUCTOR:
if(element.getParent() instanceof DotNetAttribute)
{
return ATTRIBUTE;
}
return UsageType.CLASS_NEW_OPERATOR;
case TYPE_LIKE:
DotNetType type = PsiTreeUtil.getParentOfType(element, DotNetType.class);
if(type == null)
{
return null;
}
PsiElement parent = type.getParent();
if(parent instanceof CSharpLocalVariable)
{
return UsageType.CLASS_LOCAL_VAR_DECLARATION;
}
else if(parent instanceof CSharpFieldDeclaration)
{
return UsageType.CLASS_FIELD_DECLARATION;
}
else if(parent instanceof DotNetParameter)
{
return UsageType.CLASS_METHOD_PARAMETER_DECLARATION;
}
else if(parent instanceof CSharpSimpleLikeMethodAsElement)
{
return UsageType.CLASS_METHOD_RETURN_TYPE;
}
else if(parent instanceof CSharpTypeCastExpressionImpl)
{
return UsageType.CLASS_CAST_TO;
}
else if(parent instanceof CSharpAsExpressionImpl)
{
return CLASS_IN_AS;
}
else if(parent instanceof CSharpIsExpressionImpl)
{
return CLASS_IN_IS;
}
break;
case ANY_MEMBER:
if(element instanceof CSharpMethodDeclaration && !((CSharpMethodDeclaration) element).isDelegate())
{
return AS_METHOD_REF;
}
break;
}
}
return null;
}
}