mirror of
https://github.com/mruby/mruby
synced 2026-06-08 16:11:16 +00:00
Yukihiro "Matz" Matsumoto
f5ca906852
The if/unless nil? optimization called codegen() on the call node's receiver, but a bare `nil?` is parsed as an FCALL whose receiver is NULL. codegen(NULL) emits OP_LOADNIL, so the JMPNIL was testing the literal nil instead of self, making `if nil?` always behave as `if nil.nil?` (always true) and `unless nil?` always skip its body. Load self when the receiver is implicit. Fixes #6874. Co-authored-by: Claude <noreply@anthropic.com>
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.
mrbcexecutable: A command-line tool for compiling.rbfiles into.mrbbytecode 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