Am 23.08.2017 16:01 schrieb "Anthony Walter" <sys...@gmail.com>: > > Marco, it doesn't work that way. > > Type helpers simply allow you to extend an existing type with new methods and/or properties. When you declare a type helper you extend all instances of said type given that: > > A) You 'use' the unit declaring the type helper in some other unit. > B) No other unit you're using also defines a type helper for that same type. Only one type helper per type allowed. >
To be more precise: the last helper in scope simply wins. There is no error if multiple ones are in scope. Also one can cheat a bit by having one's own helper inherit from another helper of the same type ;) Though I should mention that it's on my list to implement support for multiple helpers. I just need to be sure about the resolution rules :) Regards, Sven
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