public override SyntaxNode VisitArgument(ArgumentSyntax node)
{
if (node.Expression is MemberAccessExpressionSyntax argumentExpr)
{
var argumentSymbol = _originalSemantics.GetSymbolInfo(argumentExpr).Symbol;
if (argumentSymbol is IPropertySymbol propertySymbol)
{
if (RhinoRecognizer.IsAnythingProperty(propertySymbol))
{
var innerSymbol = _originalSemantics.GetSymbolInfo(argumentExpr.Expression).Symbol as IPropertySymbol;
if (RhinoRecognizer.IsIsArgProperty(innerSymbol))
{
return(UseArgsAny(node));
}
}
if (RhinoRecognizer.IsNullArgProperty(propertySymbol))
{
var innerSymbol = _originalSemantics.GetSymbolInfo(argumentExpr.Expression).Symbol as IPropertySymbol;
if (RhinoRecognizer.IsIsArgProperty(innerSymbol))
{
return(UseArgWith(node, GetEqualsNullArgument(_methodContext.Current.UnusedLambdaToken)));
}
}
if (RhinoRecognizer.IsNotNullArgProperty(propertySymbol))
{
var innerSymbol = _originalSemantics.GetSymbolInfo(argumentExpr.Expression).Symbol as IPropertySymbol;
if (RhinoRecognizer.IsIsArgProperty(innerSymbol))
{
return(UseArgWith(node, GetNotEqualsNullArgument(_methodContext.Current.UnusedLambdaToken)));
}
}
}
if (node.RefKindKeyword.IsKind(SyntaxKind.OutKeyword) && argumentSymbol is IFieldSymbol fieldSymbol)
{
if (RhinoRecognizer.IsDummyField(fieldSymbol))
{
var outMethodSymbol = _originalSemantics.GetSymbolInfo(argumentExpr.Expression).Symbol as IMethodSymbol;
if (RhinoRecognizer.IsOutArgMethod(outMethodSymbol) && argumentExpr.Expression is InvocationExpressionSyntax outMethodInvocation)
{
_invocationContext.Current.OutRefArguments.Add(outMethodInvocation.ArgumentList.Arguments.First().Expression);
return(UseArgsAny(node, true));
}
}
}
}
if (node.Expression is InvocationExpressionSyntax argumentMethodInvocation)
{
var argumentSymbol = _originalSemantics.GetSymbolInfo(argumentMethodInvocation.Expression).Symbol;
if (argumentSymbol is IMethodSymbol methodSymbol)
{
if (RhinoRecognizer.IsEqualArgMethod(methodSymbol))
{
var equalsTo = argumentMethodInvocation.ArgumentList.Arguments.First().Expression;
return(UseArgWith(node, GetEqualsToGivenArgument(_methodContext.Current.UnusedLambdaToken, equalsTo)));
}
if (RhinoRecognizer.IsSameArgMethod(methodSymbol))
{
var sameTo = argumentMethodInvocation.ArgumentList.Arguments.First().Expression;
return(UseArgWith(node, GetReferenceEqualsToGivenArgument(_methodContext.Current.UnusedLambdaToken, sameTo)));
}
if (RhinoRecognizer.IsMatchesArgMethod(methodSymbol))
{
var lambdaArgument = argumentMethodInvocation.ArgumentList.Arguments.First().Expression;
return(UseArgWith(node, GetLambdaAsArgument(_methodContext.Current.UnusedLambdaToken, lambdaArgument)));
}
}
}
return(base.VisitArgument(node));
}