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• v5.5.0 cd0ac7834d

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  v5.5.0 — OOP in Native Codegen: Classes, Methods, Ivars Stable

  root released this 2026-03-16 19:20:06 -03:00 | 114 commits to main since this release

  What's New

  Native OOP Support

  Koder can now compile classes with instance variables and methods to standalone x86_64 ELF binaries:

  class Counter
    def initialize(n)
      @n = n
    end
    def value
      return @n
    end
  end
  c = Counter.new(99)
  puts c.value  # => 99
  

  → 1173-byte standalone ELF binary

  Implementation Details

  • CLASS_DEF assigns sequential class IDs
  • Objects: 80-byte heap blocks with class_id + 8 ivar slots
  • STORE_IVAR/LOAD_IVAR: ivar access at [self + 16 + idx*8]
  • Method dispatch: class_id comparison chain
  • Self passed implicitly at [rbp+16]

  Native Codegen Summary

  Feature	Status
  Integers + arithmetic	✅
  Strings (alloc, concat, to_s)	✅
  Variables	✅
  If/else, while	✅
  Functions (def/call/return)	✅
  Arrays (literal, index, push)	✅
  Hashes (alloc, set, get)	✅
  Classes (new, ivars, methods)	✅ NEW
  Comparisons, logical ops	✅

  Backlog

  • #052: ZIP/RAR/7z archive support
  • #053: XML parser
  • #054: YAML parser

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