write a javascript engine in rust

Because a full implementation is too difficult, I start up this is project with some goals that are easy to implement but still cover all the important techniques.

goals

• buid in rust
• a subset of javascript grammar

usage

cargo run path_of_js_file.js

task board

hand written lexer

• a basic lexer
• functions to check identifier, especially unicode chars and sequence
• handle string literal
• opt the get postion method
• numeric literal
• refactoring

hand written parser(top-down)

• basis of parser and AST