bioinfornatics <bioinfornat...@fedoraproject.org> wrote: > Le lundi 05 mars 2012 ‡ 17:55 +0000, kennytm a Ècrit : >> bioinfornatics <bioinfornat...@fedoraproject.org> wrote: >>> dear, >>> I would like a easy way to forward as does ruby: >>> http://www.ruby-doc.org/stdlib-1.9.3/libdoc/forwardable/rdoc/Forwardable.html >>> >>> I have already something close: >>> - https://gist.github.com/1969776 (me) >>> - http://paste.pocoo.org/show/uoD89CCjX5H3m6GvPvW6/ (dav1d) >>> >>> But it works only for array. >>> >>> >>> I have try to do this purpose: https://gist.github.com/1974033 >>> >>> but i am too new in D >>> >>> This feature will be really awesome and could be go into std.traits >> >> Check 'opDispatch' and 'alias this'. > > alias this is not the answer as it forward all, i fyo want select for > this member forwad this method and for another this one ... > > opDispaytch is not really easy to use for this. my first code do this in > 1 line and it is easy to understand hat it do. In 1 line i forward 3 > method to a member. This save time, code and bug.
You can just mixin an opDispatch function, like (not tested, only works for functions) mixin template Forward(alias member, s...) { auto opDispatch(string name, T...)(T args) { static assert(canFind(s, name)); return mixin("member." ~ name ~ "(args)"); } } or use a foreach over 's' and mixin the function/member definitions for each name.