Title
A bootstrapping infrastructure to build and extend Pharo-like languages
Abstract
Bootstrapping is well known in the context of compilers, where a bootstrapped compiler can compile its own source code. Bootstrapping is a beneficial engineering practice because it raises the level of abstraction of a program making it easier to understand, optimize, evolve, etc. Bootstrapping a reflective object-oriented language is however more challenging, as we need also to initialize the runtime of the language with its initial objects and classes besides writing its compiler. In this paper, we present a novel bootstrapping infrastructure for Pharo-like languages that allows us to easily extend and modify such languages. Our bootstrapping process relies on a first-class runtime. A first-class runtime is a meta-object that represents a program’s runtime and provides a MOP to easily load code into it and manipulate its objects. It decouples the virtual machine (VM) and language concerns by introducing a clear VM-language interface. Using this process, we show how we succeeded to bootstrap a Smalltalk-based language named Candle and then extend it with traits in less than 250 lines of high-level Smalltalk code. We also show how we can bootstrap with minimal effort two other languages (Pharo and MetaTalk) with similar execution semantics but different object models.
Year
DOI
Venue
2015
10.1145/2814228.2814236
Onward!
Field
DocType
Citations 
Metaprogramming,Programming language,Object-oriented programming,Computer science,Source code,Bootstrapping,Pharo,Smalltalk,Bootstrapping (compilers),Compiler
Conference
0
PageRank 
References 
Authors
0.34
13
4
Name
Order
Citations
PageRank
Guillermo Polito127.84
Stéphane Ducasse23418243.15
Noury Bouraqadi39418.92
Luc Fabresse46215.67