Function mountParcel

src/parcels/mount-parcel.js:28–276

(config, customProps)

}

export function mountParcel(config, customProps) {
  const owningAppOrParcel = this;

  // Validate inputs
  if (!config || (typeof config !== "object" && typeof config !== "function")) {
    throw Error(
      formatErrorMessage(
        2,
        __DEV__ &&
          "Cannot mount parcel without a config object or config loading function"
      )
    );
  }

  if (config.name && typeof config.name !== "string") {
    throw Error(
      formatErrorMessage(
        3,
        __DEV__ &&
          `Parcel name must be a string, if provided. Was given ${typeof config.name}`,
        typeof config.name
      )
    );
  }

  const id = parcelCount++;
  let name = config.name || `parcel-${id}`;

  if (typeof customProps !== "object") {
    throw Error(
      formatErrorMessage(
        4,
        __DEV__ &&
          `Parcel ${name} has invalid customProps -- must be an object but was given ${typeof customProps}`,
        name,
        typeof customProps
      )
    );
  }

  if (!customProps.domElement) {
    throw Error(
      formatErrorMessage(
        5,
        __DEV__ &&
          `Parcel ${name} cannot be mounted without a domElement provided as a prop`,
        name
      )
    );
  }

  const passedConfigLoadingFunction = typeof config === "function";
  const configLoadingFunction = passedConfigLoadingFunction
    ? config
    : () => Promise.resolve(config);

  // Internal representation
  const parcel = {