Files
mruby-mruby/mrbgems/mruby-compiler
Yukihiro "Matz" Matsumoto f50936e8bd mruby-compiler: simplify mrb_ast_array_node from flat array to cons list
Replace complex flat array packing with simple cons-list storage to reduce
memory overhead and code complexity. This continues the compiler simplification
work by reverting array nodes to the original memory-efficient approach.

- Remove len/flags fields from mrb_ast_array_node structure
- Eliminate complex two-pass processing (count + copy) in new_array()
- Replace array indexing with cons-list iteration in gen_array_var()
- Reduce parser code from 30+ lines to 4 lines for array creation
- Maintain full functionality with zero test regressions

Following the same successful pattern used for mrb_ast_case_node upgrade,
this change proves that flat array packing provides no memory benefit
since cons lists aren't recycled, while adding unnecessary complexity.

Co-authored-by: Claude <noreply@anthropic.com>
2025-10-03 19:46:19 +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