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Versions: 11
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Contents
# frozen_string_literal: true
module Unparser
class Emitter
# Emitter control flow modifiers
class FlowModifier < self
MAP = {
return: K_RETURN,
next: K_NEXT,
break: K_BREAK
}.freeze
handle(*MAP.keys)
def terminated?
children.empty?
end
private
# Perform dispatch
#
# @return [undefined]
#
# @api private
#
def dispatch
write(MAP.fetch(node.type))
case children.length
when 0 # rubocop:disable Lint/EmptyWhen
when 1
emit_single_argument
else
emit_arguments
end
end
# Emit break or return arguments
#
# @return [undefined]
#
# @api private
#
def emit_arguments
ws
head, *tail = children
emit_argument(head)
tail.each do |node|
write(DEFAULT_DELIMITER)
emit_argument(node)
end
end
PARENS = %i[if case begin].to_set.freeze
# Emit argument
#
# @param [Parser::AST::Node] node
#
# @api private
#
def emit_argument(node)
visit_plain(node)
end
# Emit single argument
#
# @api private
#
def emit_single_argument
ws
conditional_parentheses(PARENS.include?(first_child.type)) do
visit_plain(first_child)
end
end
end # Return
end # Emitter
end # Unparser
Version data entries
11 entries across 11 versions & 1 rubygems