marko/test/autotests/render/template-transformer/transformer.js

var path = require('path');

module.exports = function(rootNode, context) {
    var builder = context.builder;

    var templateName = path.basename(context.filename);

    rootNode.prependChild(builder.htmlComment(builder.literal('BEGIN: ' + templateName)));
    rootNode.appendChild(builder.htmlComment(builder.literal('END: ' + templateName)));
};