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using System;
using System.Collections.Generic;
using System.Linq;
namespace jive
{
static public class MappingExtensions
{
static public Output map_using<Input, Output>(this Input item, Converter<Input, Output> conversion)
{
return conversion(item);
}
static public Output map_using<Input, Output>(this Input item, Mapper<Input, Output> mapper)
{
return map_using(item, x => mapper.map_from(x));
}
static public Output map_using<Input, Output>(this Input item, Mapper mapper)
{
return map_using(item, x => mapper.map_from<Input, Output>(x));
}
static public IEnumerable<Output> map_all_using<Input, Output>(this IEnumerable<Input> items,
Converter<Input, Output> mapper)
{
return null == items ? Enumerable.Empty<Output>() : items.Select(x => mapper(x));
}
static public IEnumerable<Output> map_all_using<Input, Output>(this IEnumerable<Input> items,
Mapper<Input, Output> mapper)
{
return map_all_using(items, x => mapper.map_from(x));
}
static public IEnumerable<Output> map_all_using<Input, Output>(this IEnumerable<Input> items,
Mapper mapper)
{
return map_all_using(items, x => mapper.map_from<Input, Output>(x));
}
static public Mapper<Left, Right> then<Left, Middle, Right>(this Mapper<Left, Middle> left,
Mapper<Middle, Right> right)
{
return new ChainedMapper<Left, Middle, Right>(left, right);
}
}
}
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