Le 2012-02-15 à 13:11:00, Jonathan Wilkes a écrit :
Instead of time units, let's take the incoming single-selector "pi" and
replace it with the float value of pi for any object that doesn't have a
"pi" method or an "anything" method (but does have a float method).
Furthermore, if a class defines a float argument but the argument
provided isn't a float, then check first if what it received was
A_SYMBOL 'pi' and if so replace with the float value of pi. Is what I
wrote above possible to do without causing huge problems to performance
or creating ambiguities?
Compared to any code that checks whether something is A_FLOAT or not, and
branches accordingly, it makes absolutely no speed difference for the case
of A_FLOAT.
And for the other case... the difference is that if you rely on A_SYMBOL
from being a type completely separate from A_FLOAT, for any reason, then
you're toasted. It's actually the same issue as the auto-convert
discussion from a while ago in which the symbol \123 would be regarded as
float 123 if you look at it this way, or as symbol \123 if you look at it
this way.
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| Mathieu BOUCHARD ----- téléphone : +1.514.383.3801 ----- Montréal, QC
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