ruby.git/jit_hook.rb, branch v4.0.2 The Ruby Programming Language ZJIT: add support for lazy `RubyVM::ZJIT.enable` 2025-11-18T16:35:09+00:00 Godfrey Chan godfreykfc@gmail.com 2025-11-17T16:15:16+00:00 f84bbb423836d9d0d018b8ab71ecceb5868fd5be This implements Shopify#854: - Splits boot-time and enable-time initialization, tracks progress with `InitializationState` enum - Introduces `RubyVM::ZJIT.enable` Ruby method for enabling the JIT lazily, if not already enabled - Introduces `--zjit-disable` flag, which can be used alongside the other `--zjit-*` flags but prevents enabling the JIT at boot time - Adds ZJIT infra to support JIT hooks, but this is not currently exercised (Shopify/ruby#667) Left for future enhancements: - Support kwargs for overriding the CLI flags in `RubyVM::ZJIT.enable` Closes Shopify#854 
This implements Shopify#854:

- Splits boot-time and enable-time initialization,
  tracks progress with `InitializationState` enum

- Introduces `RubyVM::ZJIT.enable` Ruby method for
  enabling the JIT lazily, if not already enabled

- Introduces `--zjit-disable` flag, which can be
  used alongside the other `--zjit-*` flags but
  prevents enabling the JIT at boot time

- Adds ZJIT infra to support JIT hooks, but this
  is not currently exercised (Shopify/ruby#667)

Left for future enhancements:

- Support kwargs for overriding the CLI flags in
  `RubyVM::ZJIT.enable`

Closes Shopify#854
ZJIT: Prepare for sharing JIT hooks with ZJIT (#14044) 2025-07-30T17:11:10+00:00 Takashi Kokubun takashikkbn@gmail.com 2025-07-30T17:11:10+00:00 2cd10de33097d44f85a42bcde0f8bf17c90cd53a