Method: Kernel#returning

Defined in:
lib/core/facets/kernel/returning.rb

#returning(obj = self) {|obj| ... } ⇒ Object

A Ruby-ized realization of the K combinator.

book_class = Struct.new(:title, :author)

book = returning book_class.new do |book|
  book.title = "Imperium"
  book.author = "Ulick Varange"
end

book.class  #=> book_class

Technically, #returning probably should force the return of the stated object irregardless of any return statements that might appear within it’s block. This might differentiate #returning from #with, however it also would require implementation in Ruby itself.

CREDIT: Mikael Brockman

Yields:

  • (obj) 


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# File 'lib/core/facets/kernel/returning.rb', line 22

def returning(obj=self) #:yield:
  yield obj
  obj
end