Sha256: a861866df30de9e607ee3bf1662048a20223fa199d39c8f7d4c8dd8d0bc02066
Contents?: true
Size: 858 Bytes
Versions: 10
Compression:
Stored size: 858 Bytes
Contents
class UnboundMethod
# Resolves the arguments of the method to have an
# identical signiture --useful for preserving arity.
#
# class X
# def foo(a, b); end
# def bar(a, b=1); end
# end
#
# foo_method = X.instance_method(:foo)
# foo_method.arguments #=> "a0, a1"
#
# bar_method = X.instance_method(:bar)
# bar_method.arguments #=> "a0, *args"
#
# When defaults are used the arguments must end in "*args".
#
# CREDIT: Trans
def arguments
ar = arity
case ar <=> 0
when 1
args = []
ar.times do |i|
args << "a#{i}"
end
args = args.join(", ")
when 0
args = ""
else
ar = -ar - 1
args = []
ar.times do |i|
args << "a#{i}"
end
args << "*args"
args = args.join(", ")
end
return args
end
end
Version data entries
10 entries across 10 versions & 2 rubygems