public override MethodInvocation ProcessUsage(IReference reference)
{
var referenceExpression = reference.GetTreeNode() as IReferenceExpression;
if (referenceExpression == null)
{
Driver.AddConflict(ReferenceConflict.CreateError(reference, "{0} can not be updated correctly.", "Usage"));
return(null);
}
bool isExtensionMethod = referenceExpression.IsExtensionMethod();
IInvocationExpression invocation = InvocationExpressionNavigator.GetByInvokedExpression(referenceExpression);
if (invocation == null)
{
Driver.AddConflict(ReferenceConflict.CreateError(reference, "{0} can not be updated correctly.", "Usage"));
return(null);
}
ITreeNode element = GetArgument(invocation, isExtensionMethod);
var argument = element as ICSharpArgument;
IType type = argument != null?GetTypeOfValue(argument.Value) : GetTypeOfValue(element);
if (type == null || !type.CanUseExplicitly(invocation))
{
Driver.AddConflict(ReferenceConflict.CreateError(
reference, "Argument of {0} is not valid 'typeof' expression.", "usage"));
return(null);
}
// we can rely on resolve result since method declaration is not yet changed.
ResolveResultWithInfo resolveResult = reference.Resolve();
ISubstitution substitution = resolveResult.Result.Substitution;
var method = resolveResult.DeclaredElement as IMethod;
if (method == null)
{
return(null);
}
if (argument != null)
{
invocation.RemoveArgument(argument);
return(new MethodInvocation(reference, type, method, substitution));
}
CSharpElementFactory factory = CSharpElementFactory.GetInstance(invocation.GetPsiModule());
IReferenceExpression newInvokedExpression =
invocation.InvokedExpression.ReplaceBy(factory.CreateReferenceExpression("$0", Executer.Method));
return(new MethodInvocation(newInvokedExpression.Reference, type, method, substitution));
}
