Function processPropValue

06.Router/basic/js/vue.js:6168–6186

* Process a prop with a rawValue, applying necessary coersions, * default values & assertions and call the given callback with * processed value. * * @param {Vue} vm * @param {Object} prop * @param {*} rawValue * @param {Function} fn

(vm, prop, rawValue, fn)

   */

  function processPropValue(vm, prop, rawValue, fn) {
    var isSimple = prop.dynamic && isSimplePath(prop.parentPath);
    var value = rawValue;
    if (value === undefined) {
      value = getPropDefaultValue(vm, prop);
    }
    value = coerceProp(prop, value, vm);
    var coerced = value !== rawValue;
    if (!assertProp(prop, value, vm)) {
      value = undefined;
    }
    if (isSimple && !coerced) {
      withoutConversion(function () {
        fn(value);
      });
    } else {
      fn(value);
    }
  }

  /**
   * Set a prop's initial value on a vm and its data object.