/// <summary>
/// Initializes an instance of <see cref="EnumerableWrapperProvider"/>.
/// </summary>
/// <param name="sourceEnumerableOfT">Type of the original <see cref="IEnumerable{T}" />
/// that is being wrapped.</param>
/// <param name="elementWrapperProvider">The <see cref="IWrapperProvider"/> for the element type.
/// Can be null.</param>
public EnumerableWrapperProvider(
Type sourceEnumerableOfT,
IWrapperProvider elementWrapperProvider)
{
if (sourceEnumerableOfT == null)
{
throw new ArgumentNullException(nameof(sourceEnumerableOfT));
}
var enumerableOfT = ClosedGenericMatcher.ExtractGenericInterface(
sourceEnumerableOfT,
typeof(IEnumerable <>));
if (!sourceEnumerableOfT.IsInterface || enumerableOfT == null)
{
throw new ArgumentException(
Resources.FormatEnumerableWrapperProvider_InvalidSourceEnumerableOfT(typeof(IEnumerable <>).Name),
nameof(sourceEnumerableOfT));
}
_wrapperProvider = elementWrapperProvider;
var declaredElementType = enumerableOfT.GenericTypeArguments[0];
var wrappedElementType = elementWrapperProvider?.WrappingType ?? declaredElementType;
WrappingType = typeof(DelegatingEnumerable <,>).MakeGenericType(wrappedElementType, declaredElementType);
_wrappingTypeConstructor = WrappingType.GetConstructor(new[]
{
sourceEnumerableOfT,
typeof(IWrapperProvider)
});
}
/// <summary>
/// Initializes an instance of <see cref="EnumerableWrapperProvider"/>.
/// </summary>
/// <param name="sourceEnumerableOfT">Type of the original <see cref="IEnumerable{T}" />
/// that is being wrapped.</param>
/// <param name="elementWrapperProvider">The <see cref="IWrapperProvider"/> for the element type.
/// Can be null.</param>
public EnumerableWrapperProvider(
Type sourceEnumerableOfT,
IWrapperProvider elementWrapperProvider)
{
if (sourceEnumerableOfT == null)
{
throw new ArgumentNullException(nameof(sourceEnumerableOfT));
}
var enumerableOfT = ClosedGenericMatcher.ExtractGenericInterface(
sourceEnumerableOfT,
typeof(IEnumerable <>));
if (!sourceEnumerableOfT.GetTypeInfo().IsInterface || enumerableOfT == null)
{
throw new ArgumentException($"The type must be an interface and must be or derive from '{typeof(IEnumerable<>).Name}'.",
nameof(sourceEnumerableOfT));
}
_wrapperProvider = elementWrapperProvider;
var declaredElementType = enumerableOfT.GenericTypeArguments[0];
var wrappedElementType = elementWrapperProvider?.WrappingType ?? declaredElementType;
WrappingType = typeof(DelegatingEnumerable <,>).MakeGenericType(wrappedElementType, declaredElementType);
_wrappingTypeConstructor = WrappingType.GetConstructor(new[]
{
sourceEnumerableOfT,
typeof(IWrapperProvider)
});
}