protected override bool IsViableExtensionMethod(
IMethodSymbol method,
SyntaxNode expression,
SemanticModel semanticModel,
ISyntaxFacts syntaxFacts,
CancellationToken cancellationToken
)
{
var leftExpression =
syntaxFacts.GetExpressionOfMemberAccessExpression(expression)
?? syntaxFacts.GetTargetOfMemberBinding(expression);
if (leftExpression == null)
{
if (expression.IsKind(SyntaxKind.CollectionInitializerExpression))
{
leftExpression = expression.GetAncestor <ObjectCreationExpressionSyntax>();
}
else
{
return(false);
}
}
var semanticInfo = semanticModel.GetTypeInfo(leftExpression, cancellationToken);
var leftExpressionType = semanticInfo.Type;
return(IsViableExtensionMethod(method, leftExpressionType));
}
