7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
|
# File 'lib/simple_delegate.rb', line 7
def delegate(*args, **opts)
args.each do |method|
define_method(method) do |*method_args, **method_opts, &method_blk|
if opts[:to_instance_variable]
object = instance_variable_get("@#{opts.fetch(:to_instance_variable)}")
raise "Nothing was returned by: #{opts.fetch(:to_instance_variable)}" unless object
elsif opts[:to]
object = __send__(opts.fetch(:to))
raise "Nothing was returned by: #{opts.fetch(:to)}" unless object
else
raise "Don't know where to delegate to"
end
object.__send__(method, *method_args, **method_opts, &method_blk)
end
end
end
|