private static IOperation TryGetTargetInNotNullCheck([NotNull] IOperation operation, [NotNull] NullCheckScanner scanner)
{
IOperation targetOperation = SkipNotOperators(operation);
var visitor = new NullCheckVisitor(scanner);
visitor.Visit(targetOperation);
return(visitor.ScanResult != null && visitor.ScanResult.Value.Operand == NullCheckOperand.IsNotNull
? visitor.ScanResult.Value.Target
: null);
}
public Expression Resolve(Expression input, Expression output)
{
if (input.Type == typeof(string) || output.Type != typeof(string))
{
return(null);
}
Expression result = Expression.Call(input, typeof(object).GetTypeInfo().GetDeclaredMethod("ToString"));
if (input.Type.IsClass())
{
result = new NullCheckVisitor(result).Visit();
}
return(result);
}
