const antlrv4_js_xml = require('antlrv4-js-xml')

class Visitor extends antlrv4_js_xml.Visitor {
  visitElement (ctx) {
    console.log(ctx.Name()[0].getText())
    return this.visitChildren(ctx);
  }
}

xmlantlrv4_js_xml.transform('<div><span>2</span><p>1</p></div>', new Visitor())

// Visit a parse tree produced by XMLParser#document.
visitDocument(ctx) {
    return this.visitChildren(ctx);
}

// Visit a parse tree produced by XMLParser#prolog.
visitProlog(ctx) {
    return this.visitChildren(ctx);
}

// Visit a parse tree produced by XMLParser#content.
visitContent(ctx) {
    return this.visitChildren(ctx);
}

// Visit a parse tree produced by XMLParser#element.
visitElement(ctx) {
    return this.visitChildren(ctx);
}

// Visit a parse tree produced by XMLParser#reference.
visitReference(ctx) {
    return this.visitChildren(ctx);
}

// Visit a parse tree produced by XMLParser#attribute.
visitAttribute(ctx) {
    return this.visitChildren(ctx);
}

// Visit a parse tree produced by XMLParser#chardata.
visitChardata(ctx) {
    return this.visitChildren(ctx);
}

// Visit a parse tree produced by XMLParser#misc.
visitMisc(ctx) {
    return this.visitChildren(ctx);
}