babel.js

export default function(babel) {
  const { types: t } = babel;

  return {
    name: "ast-transform", // not required
    visitor: {
      ObjectExpression(path) {
        var source = path.node.source.value;
        if (source !== '@generated/registry') return;
        
        var properties = path.get('properties');
        var propertiesMap = {};
        properties.forEach(function (property) {
           propertiesMap[property.node.key.value] = property;
          });
        
         if (!propertiesMap.loader || propertiesMap.webpack) {
            return;
          }

          var loaderMethod = propertiesMap.loader.get('value');
          var dynamicImports = [];

          loaderMethod.traverse({
            Import: function Import(path) {
              dynamicImports.push(path.parentPath);
            }
          });
        if (!dynamicImports.length) return;
			
        console.log(dynamicImports)
        console.log(dynamicImports[0].get('arguments')[0].node)
          propertiesMap.loader.insertAfter(t.objectProperty(t.identifier('webpack'), t.arrowFunctionExpression([], t.arrayExpression(dynamicImports.map(function (dynamicImport) {
            return t.callExpression(t.memberExpression(t.identifier('require'), t.identifier('resolveWeak')), [dynamicImport.get('arguments')[0].node]);
          })))));

          propertiesMap.loader.insertAfter(t.objectProperty(t.identifier('modules'), t.arrayExpression(dynamicImports.map(function (dynamicImport) {
            return dynamicImport.get('arguments')[0].node;
          }))));
      },
    }
  };
}