Sha256: 1799c977b504422ef174ede5013ceea04744803bcd379d398930114ae7ef8fe3
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Stored size: 1019 Bytes
Contents
# frozen_string_literal: true
require 'opal/nodes/base'
module Opal
module Nodes
module Args
# This node is responsible for extracting a single
# optional post-argument
#
# args_to_keep is the number of required post-arguments
#
# def m(a = 1, b, c, d); end
# becomes something like:
# if post_args.length > 3
# a = post_args[0]
# post_args = post_args[1..-1]
# end
#
class ExtractPostOptarg < Base
handle :extract_post_optarg
children :name, :default_value, :args_to_keep
def compile
add_temp name
line "if ($post_args.length > #{args_to_keep}) {"
line " #{name} = $post_args[0];"
line " $post_args.splice(0, 1);"
line "}"
return if default_value.children[1] == :undefined
line "if (#{name} == null) {"
line " #{name} = ", expr(default_value), ";"
line "}"
end
end
end
end
end
Version data entries
18 entries across 18 versions & 1 rubygems