module Ruby2JS::Filter::JSX

Public Instance Methods

on_block(node) click to toggle source
Calls superclass method
# File lib/ruby2js/filter/jsx.rb, line 48
def on_block(node)
  send, args, *block = node.children
  target, method, *_ = send.children
  while target!=nil and target.type==:send and target.children.length==2
    target, method = target.children
  end

  if target == nil and method.to_s.start_with? "_"
    if args.children.empty?
      if method == :_
        # Fragment
        if send.children.length == 2
          process send.updated(:xnode, ['', *process_all(block)])
        else
          process s(:xnode, 'React.Fragment', *send.children[2..-1],
            *process_all(block))
        end
      else
        # append block as a standalone proc
        process send.updated(nil, [*send.children, *process_all(block)])
      end
    else
      # iterate over Enumerable arguments if there are args present
      send = send.children
      return super if send.length < 3
      process s(:block, s(:send, *send[0..1], *send[3..-1]),
        s(:args), s(:block, s(:send, send[2], :map),
        *node.children[1..-1]))
    end
  else
    super
  end
end
on_send(node) click to toggle source
Calls superclass method
# File lib/ruby2js/filter/jsx.rb, line 10
def on_send(node)
  target, method, *args = node.children

  if target == s(:const, nil, :Wunderbar)
    if [:debug, :info, :warn, :error, :fatal].include? method
      method = :error if method == :fatal
      return node.updated(nil, [s(:const, nil, :console), method, *args])
    end
  end

  stack = []
  while target!=nil and target.type==:send and target.children.length==2
    name = method.to_s
    if name.end_with? '!'
      stack << s(:hash, s(:pair, s(:sym, :id), s(:str, name[0..-2])))
    else
      stack << s(:hash, s(:pair, s(:sym, :class), s(:str, name)))
    end
    target, method = target.children
  end

  if target == nil and method.to_s.start_with? "_"
    S(:xnode, method.to_s[1..-1], *stack, *process_all(args))

  elsif method == :createElement and target == s(:const, nil, :React)
    if args.first.type == :str and \
      (args.length == 1 or %i(nil hash).include? args[1].type)
      attrs = (args[1]&.type != :nil && args[1]) || s(:hash)
      S(:xnode, args[0].children.first, attrs, *process_all(args[2..-1]))
    else
      super
    end

  else
    super
  end
end