Module: ProcUtils

Defined in:
lib/proc_utils.rb,
lib/proc_utils/version.rb,
lib/proc_utils/core_ext/proc.rb,
lib/proc_utils/core_ext/symbol.rb

Defined Under Namespace

Modules: CoreExt

Constant Summary collapse

ALL = 
i(partial partial_right bind flip wrap compose memoize once)
SYM = 
ALL - i(flip wrap compose)
VERSION = 
"0.1.0"

Class Method Summary collapse

Class Method Details

.bind(subject, receiver, *bound_args) ⇒ Object 



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# File 'lib/proc_utils.rb', line 16

def bind(subject, receiver, *bound_args)
  proc { |*args| subject.call(receiver, *bound_args, *args) }
end

.compose(subject, other) ⇒ Object 



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# File 'lib/proc_utils.rb', line 28

def compose(subject, other)
  proc { |*args| subject.call(*other.call(*args)) }
end

.flip(subject) ⇒ Object 



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# File 'lib/proc_utils.rb', line 20

def flip(subject)
  proc { |*args| subject.call(*args.reverse) }
end

.memoize(subject) ⇒ Object 



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# File 'lib/proc_utils.rb', line 32

def memoize(subject)
  cache = {}
  proc { |*args| cache[args] ||= subject.call(*args) }
end

.once(subject) ⇒ Object 



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# File 'lib/proc_utils.rb', line 37

def once(subject)
  cache, called = nil, false

  proc do |*args|
    cache, called = subject.call(*args), true unless called
    cache
  end
end

.partial(subject, *bound_args) ⇒ Object 



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# File 'lib/proc_utils.rb', line 8

def partial(subject, *bound_args)
  proc { |receiver, *args| subject.call(receiver, *bound_args, *args) }
end

.partial_right(subject, *bound_args) ⇒ Object 



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# File 'lib/proc_utils.rb', line 12

def partial_right(subject, *bound_args)
  proc { |receiver, *args| subject.call(receiver, *args, *bound_args) }
end

.wrap(subject, other) ⇒ Object 



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# File 'lib/proc_utils.rb', line 24

def wrap(subject, other)
  proc { |*args| subject.call(other, *args) }
end