Method registerParseElement

www/js/_hyperscript.js:1597–1635

* Register a parse element class based on its static metadata. * Commands need `static keyword`, expressions need `static grammarName`.

(ElementClass)

     * Commands need `static keyword`, expressions need `static grammarName`.
     */
    registerParseElement(ElementClass) {
      if (!ElementClass.parse) return;
      const parse = ElementClass.parse.bind(ElementClass);
      if (ElementClass.keyword && ElementClass.prototype instanceof Command) {
        var keywords = Array.isArray(ElementClass.keyword) ? ElementClass.keyword : [ElementClass.keyword];
        for (var kw of keywords) this.addCommand(kw, parse);
        return;
      }
      if (ElementClass.keyword && ElementClass.prototype instanceof Feature) {
        var keywords = Array.isArray(ElementClass.keyword) ? ElementClass.keyword : [ElementClass.keyword];
        for (var kw of keywords) this.addFeature(kw, parse);
        return;
      }
      const name = ElementClass.grammarName;
      if (!name) return;
      switch (ElementClass.expressionType) {
        case "leaf":
          this.addLeafExpression(name, parse);
          break;
        case "indirect":
          this.addIndirectExpression(name, parse);
          break;
        case "unary":
          this.addUnaryExpression(name, parse);
          break;
        case "top":
          this.addTopExpression(name, parse);
          break;
        case "postfix":
          this.addPostfixExpression(name, parse);
          break;
        default:
          this.addGrammarElement(name, parse);
          break;
      }
      if (ElementClass.assignable) {
        this.#assignableExpressions.push(name);
      }
    }
    /**
     * Register all exported parse element classes from a module.
     * Iterates over module exports and registers any class with