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https://github.com/mruby/mruby
synced 2026-06-08 16:11:16 +00:00
Yukihiro "Matz" Matsumoto
613b03ac18
when running scripts via mruby -e or file, return values are unused. this adds a no_return_value flag to skip generating unnecessary code. for parallel assignment like a,b = 1,2: - before: 18 bytes, 5 registers, creates temporary array - after: 5 bytes, 3 registers, direct register assignment, no RETURN the flag is set only for the main program, not for libraries loaded with -r option. eval() and mirb continue returning values correctly. Co-authored-by: Claude <noreply@anthropic.com>
mruby-bin-mruby
mruby is the main interpreter for executing Ruby scripts with mruby.
Usage
mruby [switches] [programfile] [arguments]
Options
-b- load and execute RiteBinary (mrb) file-c- check syntax only-d- set debugging flags (set$DEBUGto true)-e 'command'- one line of script-r library- load the library before executing your script-v- print version number, then run in verbose mode--verbose- run in verbose mode--version- print the version--copyright- print the copyright
Examples
# Execute a Ruby script
mruby script.rb
# Execute inline code
mruby -e 'puts "Hello, mruby!"'
# Check syntax without executing
mruby -c script.rb
# Execute a compiled binary
mruby -b script.mrb
# Load a library before running script
mruby -r mruby-io script.rb
# Pass arguments to script
mruby script.rb arg1 arg2
License
MIT License - see the mruby LICENSE file.