/// <summary>
/// Creates a new <see cref="CoreTypeMappingParameters" /> parameter object with the given
/// converter composed with any existing converter and set on the new parameter object.
/// </summary>
/// <param name="converter"> The converter. </param>
/// <returns> The new parameter object. </returns>
public CoreTypeMappingParameters WithComposedConverter([CanBeNull] ValueConverter converter)
=> new CoreTypeMappingParameters(
ClrType,
converter == null ? Converter : converter.ComposeWith(Converter),
Comparer,
KeyComparer,
ValueGeneratorFactory);
public void Can_convert_compose_to_strings()
{
var converter
= ((ValueConverter <Beatles, string>)_enumToNumber.ComposeWith(_intToString))
.ConvertToProviderExpression.Compile();
Assert.Equal("7", converter(Beatles.John));
Assert.Equal("4", converter(Beatles.Paul));
Assert.Equal("1", converter(Beatles.George));
Assert.Equal("-1", converter(Beatles.Ringo));
Assert.Equal("77", converter((Beatles)77));
Assert.Equal("0", converter(default));
/// <summary>
/// Creates a new instance of <see cref="TypeMappingInfo" /> with the given <see cref="ValueConverterInfo" />.
/// </summary>
/// <param name="source"> The source info. </param>
/// <param name="builtInConverter"> The converter to apply. </param>
protected TypeMappingInfo(
[NotNull] TypeMappingInfo source,
ValueConverterInfo builtInConverter)
{
Check.NotNull(source, nameof(source));
Property = source.Property;
ModelClrType = source.ModelClrType;
ConfiguredProviderClrType = source.ConfiguredProviderClrType;
IsRowVersion = source.IsRowVersion;
IsKeyOrIndex = source.IsKeyOrIndex;
if (source._customConverter != null)
{
_customConverter = source._customConverter;
ValueConverterInfo = new ValueConverterInfo(
_customConverter.ModelClrType,
builtInConverter.ProviderClrType,
i => _customConverter.ComposeWith(builtInConverter.Create()),
builtInConverter.MappingHints == null
? _customConverter.MappingHints
: builtInConverter.MappingHints.With(_customConverter.MappingHints));
}
else
{
ValueConverterInfo = builtInConverter;
}
// ReSharper disable once VirtualMemberCallInConstructor
var mappingHints = ValueConverterInfo?.MappingHints;
Size = source.Size ?? mappingHints?.Size;
IsUnicode = source.IsUnicode ?? mappingHints?.IsUnicode;
Scale = source.Scale ?? mappingHints?.Scale;
Precision = source.Precision ?? mappingHints?.Precision;
ProviderClrType = CreateProviderClrType();
}
/// <summary>
/// Creates a new instance of <see cref="TypeMappingInfo" /> with the given <see cref="ValueConverterInfo" />.
/// </summary>
/// <param name="source"> The source info. </param>
/// <param name="builtInConverter"> The converter to apply. </param>
protected TypeMappingInfo(
[NotNull] TypeMappingInfo source,
ValueConverterInfo builtInConverter)
{
Check.NotNull(source, nameof(source));
Property = source.Property;
ModelClrType = source.ModelClrType;
StoreClrType = source.StoreClrType;
IsRowVersion = source.IsRowVersion;
IsKeyOrIndex = source.IsKeyOrIndex;
if (source._customConverter != null)
{
_customConverter = source._customConverter;
ValueConverterInfo = new ValueConverterInfo(
_customConverter.ModelType,
builtInConverter.StoreClrType,
i => _customConverter.ComposeWith(builtInConverter.Create()),
_customConverter.MappingHints.With(builtInConverter.MappingHints));
}
else
{
ValueConverterInfo = builtInConverter;
}
// ReSharper disable once VirtualMemberCallInConstructor
var mappingHints = ValueConverterInfo?.MappingHints ?? default;
Size = CalculateSize(mappingHints, source.Size ?? mappingHints.Size);
IsUnicode = source.IsUnicode ?? mappingHints.IsUnicode;
IsFixedLength = source.IsFixedLength ?? mappingHints.IsFixedLength;
Scale = source.Scale ?? mappingHints.Scale;
Precision = source.Precision ?? mappingHints.Precision;
}
/// <summary> /// Composes the given <see cref="ValueConverter"/> with any already in this mapping /// and returns a new <see cref="ValueConverter"/> combining them together. /// </summary> /// <param name="converter"> The new converter. </param> /// <returns> The composed converter. </returns> protected virtual ValueConverter ComposeConverter([CanBeNull] ValueConverter converter) => converter == null ? Converter : converter.ComposeWith(Converter);