forax / write_your_dynamic_language_runtime

How to write interpreters or dynamic compilers for dynamically typed languages on top of the JVM

write_your_dynamic_language_runtime

This repository is used for the course "How to implement a dynamic language on the JVM" at University Gustave Eiffel (Paris France)

This repository provides the basis to implement your own

• Abstract Syntax Tree Interpreter
• Stack based Interpreter
• Java Virtual Machine based Interpreter

of a dynamically typed language named smalljs which is almost a subset of JavaScript.

How to compile and create a jar

run Maven with a Java 21

  mvn package

a jar named smalljs-1.0.jar in the folder target is generated

How to run it

Still with Java 21

  java --class-path lib/tatoo-runtime.jar:target/smalljs-1.0.jar fr.umlv.smalljs.main.Main ast samples/hello.js
  java --class-path lib/tatoo-runtime.jar:target/smalljs-1.0.jar fr.umlv.smalljs.main.Main stack samples/hello.js
  java --class-path lib/tatoo-runtime.jar:target/smalljs-1.0.jar fr.umlv.smalljs.main.Main jvm samples/hello.js

with 'ast' being the AST interpreter, 'stack' being the Stack based interpreter and 'jvm' being the JVM based interpreter.