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Lox interpreter

Project · challenge · 2024

Lox interpreter is his solution, in Kotlin, to CodeCrafters' "Build your own interpreter" challenge. Lox is the small scripting language from Robert Nystrom's book Crafting Interpreters.

What's built

The code follows the first stages of an interpreter:

  • a lexer that turns source text into tokens;
  • a parser that turns tokens into an expression tree;
  • an AST printer that shows the parsed tree, with expressions walked through the visitor pattern.

A test script runs a sample .lox file.

See also

In the knowledge graph

Lox interpreter and the 5 things it is linked to. Open any dot for its page, or explore it in the full graph.

Kotlin · skill · Built withKotlinSystems from scratch · theme · ThemesSystems from scra…Open source on GitHub · person, role or place · ContextOpen sourceCodeCrafters · service or platform · Works withCodeCraftersCodeCrafters challenges · game or collection · Part ofCodeCrafters chal… Loxinterpreter
5 linked in the graph: 1 skill1 theme1 person, role or place1 service or platform1 game or collection
When
2023202420252026
Jul 2024 · 28 commits

As data

Everything on this page is read from triples in the knowledge graph. These are the 17 it states about Lox interpreter, and 2 more its ontology implies; the console runs SPARQL over the whole graph, here in your browser.

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@prefix id: <https://ask.chaipat.cc/id/> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix cj: <https://ask.chaipat.cc/ns#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

id:LoxInterpreter
    a cj:Project ;
    rdfs:label "Lox interpreter" ;
    cj:description "Interpreter for the Lox language (CodeCrafters “Build your own interpreter”)." ;
    cj:context id:OpenSource ;
    cj:repository "https://github.com/AppleBoiy/LoxInterpreter"^^xsd:anyURI ;
    cj:firstCommit "2024-07-12"^^xsd:date ;
    cj:lastCommit "2024-07-14"^^xsd:date ;
    cj:commitCount 28 ;
    cj:kind "challenge" ;
    cj:theme id:ThemeSystems ;
    cj:uses id:Kotlin ;
    cj:tier 3 ;
    cj:integrates id:CodeCrafters ;
    cj:partOf id:CodeCraftersSeries ;
    cj:article "https://ask.chaipat.cc/wiki/LoxInterpreter"^^xsd:anyURI ;
    cj:activeIn id:Y2024 ;
    cj:activity _:b96 .