On Monday, 5 June 2017 at 16:04:18 UTC, Petar Kirov [ZombineDev]
wrote:
On Monday, 5 June 2017 at 10:29:26 UTC, Jacob Carlborg wrote:
Hook function is defined: "I want to hook this entire
operation."
Hook function is not defined: "I am not interested in hooking
this
operation."
If hook is always defined, the shell cannot identify what a
particular
hook has an interest in.
Right.
(As I'm sure you know) this can be solved by using UDAs. I.e.
the members of the mixin template can be tagged with e.g.
@default indicating to the shell that the there was interest in
overriding them. Of course static ifs will be needed again, but
if we assume that in the common case the shell doesn't need to
differentiate between user defined and default hooks, then this
can be a net win in terms of LoC needed for the shell.
...indicating to the shell that the there was *no* interest in
overriding them.
