Sha256: 87798e60482af43d13c7a7702dfa3dc4a2f73c40ede80786ca1495c312bf9159
Contents?: true
Size: 809 Bytes
Versions: 7
Compression:
Stored size: 809 Bytes
Contents
class Symbol
unless method_defined?(:to_proc) # 1.8.7+
# Turn a symbol into a proc calling the method to which it refers.
#
# up = :upcase.to_proc
# up.call("hello") #=> 'HELLO'
#
# More useful is the fact that this allows <tt>&</tt>
# to be used to coerce Symbol into Proc.
#
# %w{foo bar qux}.map(&:upcase) #=> ["FOO","BAR","QUX"]
# [1, 2, 3].inject(&:+) #=> 6
#
# TODO: This will be deprecated as of Ruby 1.9, since it will become standard Ruby.
#
# CREDIT: Florian Gross (orignal), Nobuhiro Imai (current)
def to_proc
Proc.new{|*args| args.shift.__send__(self, *args)}
end
# Old Definition...
#
# def to_proc
# proc { |obj, *args| obj.send(self, *args) }
# end
#
end
end
Version data entries
7 entries across 6 versions & 1 rubygems