public bool Equals(DbaseFieldValue left, DbaseFieldValue right)
{
if (left == null && right == null)
{
return(true);
}
if (left == null || right == null)
{
return(false);
}
var leftInspector = new ValueInspector();
var rightInspector = new ValueInspector();
left.Inspect(leftInspector);
right.Inspect(rightInspector);
var sameField = left.Field.Equals(right.Field);
if (left.Field.Length.Equals(new DbaseFieldLength(15)) &&
left.Field.DecimalCount.Equals(new DbaseDecimalCount(0)) &&
right.Field.Length.Equals(new DbaseFieldLength(15)) &&
right.Field.DecimalCount.Equals(new DbaseDecimalCount(0)) &&
(
(
left.Field.FieldType == DbaseFieldType.Character
||
left.Field.FieldType == DbaseFieldType.DateTime
)
&&
(
right.Field.FieldType == DbaseFieldType.Character
||
right.Field.FieldType == DbaseFieldType.DateTime
)
) &&
(
leftInspector.Value == null
||
(leftInspector.Value is string leftString && leftString == "")
) &&
(
rightInspector.Value == null
||
(rightInspector.Value is string rightString && rightString == "")
)
)
{
return(sameField);
}
IEqualityComparer <object> comparer = new ObjectEqualityComparer(left.Field.DecimalCount);
var sameValue = comparer.Equals(leftInspector.Value, rightInspector.Value);
return(sameField && sameValue);
}
public static TypeMetadataProviderBase GetMetadataProvider(object obj)
{
Type elementType;
if (ValueInspector.IsPrimitiveObject(obj, out elementType))
{
return(new PrimitiveTypeMetadataProvider(obj, elementType)
{
IsPrimitiveElement = true
});
}
if (ValueInspector.IsPrimitiveEnumerable(obj, out elementType))
{
return(new EnumerablePrimitiveTypeMetadataProvider(obj)
{
IsPrimitiveElement = true,
IsEnumerable = true
});
}
if (ValueInspector.IsEnumerableOfKnownType(obj, out elementType))
{
return(new EnumerableComplexObjectTypeMetadataProvider(obj, elementType)
{
IsEnumerable = true
});
}
if (ValueInspector.IsObjectBasedEnumerable(obj))
{
return(new EnumerableObjectTypeMetadataProvider(obj)
{
IsEnumerable = true
});
}
return(new ComplexTypeMetadataProvider(obj));
}
