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Contents
# frozen_string_literal: true
require 'opal/nodes/base'
module Opal
module Nodes
module Args
# This node is responsible for extracting a splat argument from post-arguments
#
# args_to_keep is the number of required post-arguments
#
# def m(*a, b, c, d); end
# becomes something like:
# a = post_args[0..-3]
# post_args = post_args[-3..-1]
#
class ExtractRestarg < Base
handle :extract_restarg
children :name, :args_to_keep
def compile
if name
add_temp name
if args_to_keep == 0
# no post-args, we are free to grab everything
line "#{name} = $post_args;"
else
line "#{name} = $post_args.splice(0, $post_args.length - #{args_to_keep});"
end
elsif args_to_keep != 0
# def m(*, a)
# We still have to "cut" our splat
line "$post_args.splice(0, $post_args.length - #{args_to_keep});"
end
end
end
end
end
end
Version data entries
13 entries across 13 versions & 1 rubygems