Files
mruby-mruby/mrbgems/mruby-compiler
Yukihiro "Matz" Matsumoto 2e4a8e8edd mruby-compiler: fix sp tracking in pattern match failure path
After pattern matching code generation, the sp (stack pointer) must
be restored to match the success path value. The failure path (after
RAISEIF) left sp in a different state, causing incorrect register
allocation in subsequent code like string interpolation.

This caused OP_STRCAT to use the wrong register, leading to
null-dereference when trying to modify a non-string value as a string.

Co-authored-by: Claude <noreply@anthropic.com>
2026-01-04 09:12:35 +09:00
..
2025-07-02 07:14:04 +09:00

mruby-compiler

This mrbgem provides the mruby compiler, which is responsible for parsing Ruby code and generating mruby bytecode.

Functionality

The mruby-compiler gem includes the following components:

  • Parser: Translates Ruby source code into an abstract syntax tree (AST).
  • Code Generator: Traverses the AST to produce executable mruby bytecode.
  • mrbc executable: A command-line tool for compiling .rb files into .mrb bytecode files.

Usage

The mrbc (mruby-bin-mrbc) executable will generate compiled binary from Ruby programs via this gem.

Example of using mrbc:

# Compile a Ruby script to bytecode
bin/mrbc my_script.rb

# Run the compiled script
bin/mruby my_script.mrb