wingo

;; Fibers: cooperative, event-driven user-space threads.

;;;; Copyright (C) 2016,2021 Free Software Foundation, Inc.
;;;; 
;;;; This library is free software; you can redistribute it and/or
;;;; modify it under the terms of the GNU Lesser General Public
;;;; License as published by the Free Software Foundation; either
;;;; version 3 of the License, or (at your option) any later version.
;;;; 
;;;; This library is distributed in the hope that it will be useful,

wingo

;; Lambkin, a garbage-collected heap suitable for microcontrollers.
;; Copyright (C) 2015 Andy Wingo <wingo@igalia.com>.
;;
;; This program is free software: you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.
;;
;; This program is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of

wingo

#!/usr/bin/env luajit
-- -*- lua -*-

function equals(expected, actual)
   if type(expected) ~= type(actual) then return false end
   if type(expected) == 'table' then
      for k, v in pairs(expected) do
         if not equals(v, actual[k]) then return false end
      end
      for k, _ in pairs(actual) do

wingo

return (function()
   local cast = ffi.cast
   local band = bit.band
   local lshift = bit.lshift
   local rshift = bit.rshift
   local bswap = bit.bswap
   return function(P,length)
      if not (length >= 34) then return false end
      do
         if not (cast("uint16_t*", P+12)[0] == 8) then goto L3 end

wingo

<style type="text/css">
background { background: #ffffff; color: #000000; }
pre.ljdump {
font-size: 10pt;
background: #f0f4ff;
color: #000000;
border: 1px solid #bfcfff;
padding: 0.5em;
margin-left: 2em;
margin-right: 2em;

wingo

return function(P,length)
   if not 24 <= length then return false end
   local v1 = P:u16(12)
   if not v1 == 2048 then goto L2 end
   local v2 = P:u8(23)
   if not v2 == 6 then return false end
   if v2 == 6 then goto L4 end
   if v2 == 17 then goto L4 end
   if not v2 == 132 then return false end
::L4::

wingo

// Assuming that for-of and proxies are available, this function will detect the
// version of for-of being used, and bind the std_iterator object.
//
// The return value will be one of:
//
// * 'old-spidermonkey' for currently deployed spidermonkey.  This code will call
//   y.iterator() on "for (x of y) ...", then call "next" on that iterator to yield
//   values until next() throws StopIteration.  When control exits the loop,
//   .close() is called on the iterator.
//