JSX support

[elizabethdinella]

Are there any plans to add support for JSX?

[bakkot]

No, we track the ECMAScript spec.

That said, it probably would not be too hard to extend the parser yourself to do so. Something along the lines of

let { GenericParser } = require('shift-parser'); // or ParserWithLocation if you want the location side-table

class JSXParser extends GenericParser {
  parsePrimaryExpression() {
    if (this.match(TokenType.LT)) {
      return this.parseJSX();
    }
    return super.parsePrimaryExpression();
  }
  
  parseJSX() {
    // implementation goes here
  }
}

let ast = (new JSXParser(code)).parseModule();

You might need to override the tokenizer methods as well; I don't know JSX well enough to know.