{
  "id": 11769603,
  "title": "Customization: Optimizing Compiler Technology for SELF, a Dynamically-Typed Object-Oriented Programming Language (1989)",
  "url": "https://urgent.news/2026/10/03/customization-optimizing-compiler-technology-for-self-a-dynamically",
  "topic": "tech",
  "section": "Tech",
  "published": "2026-10-03T20:59:46.000Z",
  "source": {
    "name": "Lobsters",
    "slug": "lobsters",
    "url": "https://dl.acm.org/doi/epdf/10.1145/74818.74831"
  },
  "original_language": "en",
  "account": null,
  "summary": "The report discusses a novel implementation technique for dynamically-typed object-oriented programming languages, specifically SELF, which aims to optimize performance while retaining the flexibility of dynamically-typed languages. By extracting static type information from declaration-free programs, the compiler is able to compile several copies of a given procedure, each customized for a specific receiver type, allowing for compile-time binding of the receiver type. The system also predicts likely types and inserts run-time type tests to verify these predictions, effectively splitting calls and compiling a customized copy for each control path. When combined with compile-time message lookup, aggressive procedure inlining, and traditional optimizations, this approach has been shown to double the performance of dynamically-typed object-oriented languages.",
  "key_points": [],
  "editors_take": null,
  "illustration": null,
  "coverage": {
    "outlets": 1,
    "also_reported_by": []
  },
  "ai_generated": true,
  "disclaimer": "Summaries, key points and the editor’s take are written by software from other outlets’ reporting and may contain errors — always check the linked original."
}