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A re-entrant fork of LuaJ

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cc-tweaked/Cobalt

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Cobalt

Cobalt is an Lua implementation for Java, designed for use in the Minecraft mod CC: Tweaked. Is is based on LuaJ 2.0, though has diverged significantly over the years.

Features

Cobalt implements a (mostly) compliant Lua 5.1 implementation, with several interesting additional features:

  • Backports much of the Lua 5.2-5.4 standard library.
  • Allows yielding anywhere within a Lua program, including debug hooks and any inside any native function.
  • Support for interrupting and resuming the VM at arbitrary points.
  • Efficient concatenation of strings using ropes.

Using

Don't.

No seriously, don't. Cobalt is developed in-sync with CC: Tweaked, and so grows and changes according to the mod's needs. There is no guarantee of API stability between versions. It makes many design decisions which make sense for CC, but not for anything which needs a normal Lua implementation.

Instead I recommend using one of the alternative Lua implementations, like LuaJ, JNLua or Rembulan.