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Contents
module Funkr
module Categories
module Applicative
def apply
raise "Applicative#apply not implemented"
end
module ClassMethods
def curry_lift_proc(&block)
self.pure(block.curry)
end
def full_lift_proc(&block)
lambda do |*args|
args.inject(curry_lift_proc(&block)) do |a,e|
a.apply(e)
end
end
end
def lift_with(*args, &block)
full_lift_proc(&block).call(*args)
end
end
def <=>(other)
proxy_comp(other){|a,b| a <=> b}
end
def ==(other)
proxy_comp(other){|a,b| a == b}
end
def <(other)
proxy_comp(other){|a,b| a < b}
end
def <=(other)
proxy_comp(other){|a,b| a <= b}
end
def >(other)
proxy_comp(other){|a,b| a > b}
end
def >=(other)
proxy_comp(other){|a,b| a >= b}
end
private
def proxy_comp(other,&block)
self.class.
curry_lift_proc(&block).
apply(self).apply(other)
end
end
end
end
Version data entries
19 entries across 19 versions & 1 rubygems