public IFieldMapper Parse(JobParser parser, ParseState state)
{
var source = state.TryGet("Select", "Pages", true);
var path = source.Split('.');
source = path[0];
var name = state.TryGet("Name", source);
Type itemType;
var items = Selectors.SelectFromName(source, out itemType);
var selector = string.Join(".", path.Skip(1));
if (string.IsNullOrEmpty(selector))
{
selector = Selectors.DefaultSelector(source);
}
var getterInfo = parser.CompileGetter(itemType, selector);
return(new SequenceFieldMapper(name,
scope => items(scope).Select(item => getterInfo.Getter(item, scope)),
(SequenceType)
Enum.Parse(typeof(SequenceType), state.TryGet("Type", "Path"), true)));
}
