…the AST that the parser created and analyzes it, creating bytecode in the form of a CompiledMethod and InstructionSequence . (lib/compiler)
Bytecode
A CompiledMethod object contains an InstructionSequence object, which is the raw bytecode which will perform the semantic actions of the Ruby source code. (lib/compiler/ iseq.rb)
The VM itself then executes the bytecode using a simple interpreter. A key data structure used in this evaluation is the VMMethod…
- Headius: JRuby Startup Time Tips
- MacRuby Posts: An Experimental MacRuby
…performs the work for that stage. For example, if the compiler will compile a String to a CompiledMethod, it will consist of the StringParser, Generator, Encoder, and Packager stages.
The goal was to create an API for the compiler that made it simple to use programatically in a variety of circumstances. For example, using the compiler internally to compile a Ruby file when # require is called or in a command line script like lib/bin/compile-ng.rb . The command line script may …
- igvita.com: State of Ruby VMs: Ruby Renaissance
- Programblings: Rubinius for the Layman, Part 1: Rubies All the Way Down
- Nikos D.: More speed comparisons of Ruby 1.8, Ruby 1.9, JRuby, Rubinius and MacRuby using Graticule
- evan.musing << current: A Sad Day
- SD Ruby Podcast: Episode 050: One-man Lightning Talk
- Litany Against Fear: JRuby: Who What Now? Notes