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Yielder

Methods
T

Instance Public methods

to_proc()

Returns a Proc object that takes arguments and yields them.

This method is implemented so that a Yielder object can be directly passed to another method as a block argument.

enum = Enumerator.new { |y|
  Dir.glob("*.rb") { |file|
    File.open(file) { |f| f.each_line(&y) }
  }
}

Source: show 

static VALUE
yielder_to_proc(VALUE obj)
{
    VALUE method = rb_obj_method(obj, sym_yield);

    return rb_funcall(method, idTo_proc, 0);
}