Files
mruby-mruby/mrbgems/mruby-compiler
Yukihiro "Matz" Matsumoto 6ad00d2e6e mruby-compiler: refactor string representation to cons list format and fix interpolation
- change AST string representation from traditional node list to cons list
  format where elements are either (len . str) for literals or (-1 . node)
  for expressions
- implement codegen_cons_list_string() to handle new string format across
  all string types (heredoc, dstr, xstr, dxstr, literal arrays)
- fix heredoc interpolation producing garbage by wrapping expressions as
  (-1 . node) in parse.y heredoc_body rule instead of pushing directly
- fix backtick commands not executing in NOVAL mode by modifying
  gen_dxstr_var and codegen_xstr to always generate OP_SSEND calls
- update gen_literal_array() to properly handle cons list format with
  NODE_LITERAL_DELIM separators for %w[] and %i[] arrays
- refactor all dstr/dxstr/dregx variable node generators to use new format
- both simple `cmd` and dynamic `cmd #{var}` backticks now execute
  correctly even when result is discarded
- all mrbtest cases now pass (1730/1731)

Co-authored-by: Claude <noreply@anthropic.com>
2025-10-03 19:46:07 +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