Files
mruby-mruby/mrbgems/mruby-compiler
Yukihiro "Matz" Matsumoto ec67fd9587 mruby-compiler: implement array pattern matching
add support for array destructuring patterns in case/in expressions:
- [a, b, c] - fixed length match
- [first, *rest] - head + rest
- [*init, last] - init + tail
- [first, *middle, last] - head + middle + tail
- [1, x, 3] - mixed value and variable patterns
- [first, *, last] - anonymous rest (discarded)

implementation includes:
- grammar rules for p_array, p_array_body, p_rest in parse.y
- NODE_PAT_ARRAY codegen with deconstruct call and length checks
- rest variable binding via range slicing (arr[pre..-(post+1)])
- Array#deconstruct method (returns self)

Co-authored-by: Claude <noreply@anthropic.com>
2025-12-18 16:27:26 +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