JS:
Say I have a template function where there are variations, it
would be nice to be able to specify those variables like
strip!Left(s), strip!Right(s), strip(s), etc...
instead of ahving to do stripLeft, stripRight, and strip.
But the goal isn't just to add an extra ! to type but that it
reduces code duplication.
strip left and strip right are very similar and in a stripping
algorithm most of the code is identical except for the
direction the loop... instead of copying and pasting an
appropriately placed static if could simplify things greatly.
e.g.,
string strip(string dir = {"Left", "Right", default:
"Both"})(string s);
You are discussing about two different problems: one is the
duplication of code in strip, and the other in having a syntax
for "inlined" enums.
The first problem is easy to solve, just write one strip function
with a template argument to tell apart its various versions, and
then add:
alias stripLeft = strip!(Dir.Left);
alias stripRight = strip!(Dir.Right);
...
So each version only requires one more line of code, this is
acceptable.
Regarding the inlined enum, a similar feature was requested
several times, maybe in some form even in Bugzilla, but I don't
remember Walter ever commenting on it.
Bye,
bearophile
