I just read an article that mentioned dynamic and statically typed languages, and I also just looked up Ruby's yield statement. One of the examples on the page I found was this:
class SongList
def [](key)
if key.kind_of?(Integer)
@songs[key]
else
# ...
end
end
end
The problem I have is with the if key.kind_of?(Integer). I've been toying with Lisp some, and it reintroduces static typing (think C/C++ function/method arguments). So the above could be simplified a lot, especially if a method needed to be specialized for a ton of types. This could be done by specifying an argument's type. The following would work perfect, and could allow some optimizations to be made too:
class SongList
def [](Integer key)
@songs[key]
end
def [](key)
# ...
end
end
