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vue-class-component.esm.js
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vue-class-component.esm.js
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/**
* vue-class-component v7.2.1
* (c) 2015-present Evan You
* @license MIT
*/
import Vue from 'vue';
function _typeof(obj) {
if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") {
_typeof = function (obj) {
return typeof obj;
};
} else {
_typeof = function (obj) {
return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
};
}
return _typeof(obj);
}
function _defineProperty(obj, key, value) {
if (key in obj) {
Object.defineProperty(obj, key, {
value: value,
enumerable: true,
configurable: true,
writable: true
});
} else {
obj[key] = value;
}
return obj;
}
function _toConsumableArray(arr) {
return _arrayWithoutHoles(arr) || _iterableToArray(arr) || _nonIterableSpread();
}
function _arrayWithoutHoles(arr) {
if (Array.isArray(arr)) {
for (var i = 0, arr2 = new Array(arr.length); i < arr.length; i++) arr2[i] = arr[i];
return arr2;
}
}
function _iterableToArray(iter) {
if (Symbol.iterator in Object(iter) || Object.prototype.toString.call(iter) === "[object Arguments]") return Array.from(iter);
}
function _nonIterableSpread() {
throw new TypeError("Invalid attempt to spread non-iterable instance");
}
// The rational behind the verbose Reflect-feature check below is the fact that there are polyfills
// which add an implementation for Reflect.defineMetadata but not for Reflect.getOwnMetadataKeys.
// Without this check consumers will encounter hard to track down runtime errors.
function reflectionIsSupported() {
return typeof Reflect !== 'undefined' && Reflect.defineMetadata && Reflect.getOwnMetadataKeys;
}
function copyReflectionMetadata(to, from) {
forwardMetadata(to, from);
Object.getOwnPropertyNames(from.prototype).forEach(function (key) {
forwardMetadata(to.prototype, from.prototype, key);
});
Object.getOwnPropertyNames(from).forEach(function (key) {
forwardMetadata(to, from, key);
});
}
function forwardMetadata(to, from, propertyKey) {
var metaKeys = propertyKey ? Reflect.getOwnMetadataKeys(from, propertyKey) : Reflect.getOwnMetadataKeys(from);
metaKeys.forEach(function (metaKey) {
var metadata = propertyKey ? Reflect.getOwnMetadata(metaKey, from, propertyKey) : Reflect.getOwnMetadata(metaKey, from);
if (propertyKey) {
Reflect.defineMetadata(metaKey, metadata, to, propertyKey);
} else {
Reflect.defineMetadata(metaKey, metadata, to);
}
});
}
var fakeArray = {
__proto__: []
};
var hasProto = fakeArray instanceof Array;
function createDecorator(factory) {
return function (target, key, index) {
var Ctor = typeof target === 'function' ? target : target.constructor;
if (!Ctor.__decorators__) {
Ctor.__decorators__ = [];
}
if (typeof index !== 'number') {
index = undefined;
}
Ctor.__decorators__.push(function (options) {
return factory(options, key, index);
});
};
}
function mixins() {
for (var _len = arguments.length, Ctors = new Array(_len), _key = 0; _key < _len; _key++) {
Ctors[_key] = arguments[_key];
}
return Vue.extend({
mixins: Ctors
});
}
function isPrimitive(value) {
var type = _typeof(value);
return value == null || type !== 'object' && type !== 'function';
}
function warn(message) {
if (typeof console !== 'undefined') {
console.warn('[vue-class-component] ' + message);
}
}
function collectDataFromConstructor(vm, Component) {
// override _init to prevent to init as Vue instance
var originalInit = Component.prototype._init;
Component.prototype._init = function () {
var _this = this;
// proxy to actual vm
var keys = Object.getOwnPropertyNames(vm); // 2.2.0 compat (props are no longer exposed as self properties)
if (vm.$options.props) {
for (var key in vm.$options.props) {
if (!vm.hasOwnProperty(key)) {
keys.push(key);
}
}
}
keys.forEach(function (key) {
if (key.charAt(0) !== '_') {
Object.defineProperty(_this, key, {
get: function get() {
return vm[key];
},
set: function set(value) {
vm[key] = value;
},
configurable: true
});
}
});
}; // should be acquired class property values
var data = new Component(); // restore original _init to avoid memory leak (#209)
Component.prototype._init = originalInit; // create plain data object
var plainData = {};
Object.keys(data).forEach(function (key) {
if (data[key] !== undefined) {
plainData[key] = data[key];
}
});
if (process.env.NODE_ENV !== 'production') {
if (!(Component.prototype instanceof Vue) && Object.keys(plainData).length > 0) {
warn('Component class must inherit Vue or its descendant class ' + 'when class property is used.');
}
}
return plainData;
}
var $internalHooks = ['data', 'beforeCreate', 'created', 'beforeMount', 'mounted', 'beforeDestroy', 'destroyed', 'beforeUpdate', 'updated', 'activated', 'deactivated', 'render', 'errorCaptured', 'serverPrefetch' // 2.6
];
function componentFactory(Component) {
var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
options.name = options.name || Component._componentTag || Component.name; // prototype props.
var proto = Component.prototype;
Object.getOwnPropertyNames(proto).forEach(function (key) {
if (key === 'constructor') {
return;
} // hooks
if ($internalHooks.indexOf(key) > -1) {
options[key] = proto[key];
return;
}
var descriptor = Object.getOwnPropertyDescriptor(proto, key);
if (descriptor.value !== void 0) {
// methods
if (typeof descriptor.value === 'function') {
(options.methods || (options.methods = {}))[key] = descriptor.value;
} else {
// typescript decorated data
(options.mixins || (options.mixins = [])).push({
data: function data() {
return _defineProperty({}, key, descriptor.value);
}
});
}
} else if (descriptor.get || descriptor.set) {
// computed properties
(options.computed || (options.computed = {}))[key] = {
get: descriptor.get,
set: descriptor.set
};
}
});
(options.mixins || (options.mixins = [])).push({
data: function data() {
return collectDataFromConstructor(this, Component);
}
}); // decorate options
var decorators = Component.__decorators__;
if (decorators) {
decorators.forEach(function (fn) {
return fn(options);
});
delete Component.__decorators__;
} // find super
var superProto = Object.getPrototypeOf(Component.prototype);
var Super = superProto instanceof Vue ? superProto.constructor : Vue;
var Extended = Super.extend(options);
forwardStaticMembers(Extended, Component, Super);
if (reflectionIsSupported()) {
copyReflectionMetadata(Extended, Component);
}
return Extended;
}
var reservedPropertyNames = [// Unique id
'cid', // Super Vue constructor
'super', // Component options that will be used by the component
'options', 'superOptions', 'extendOptions', 'sealedOptions', // Private assets
'component', 'directive', 'filter'];
var shouldIgnore = {
prototype: true,
arguments: true,
callee: true,
caller: true
};
function forwardStaticMembers(Extended, Original, Super) {
// We have to use getOwnPropertyNames since Babel registers methods as non-enumerable
Object.getOwnPropertyNames(Original).forEach(function (key) {
// Skip the properties that should not be overwritten
if (shouldIgnore[key]) {
return;
} // Some browsers does not allow reconfigure built-in properties
var extendedDescriptor = Object.getOwnPropertyDescriptor(Extended, key);
if (extendedDescriptor && !extendedDescriptor.configurable) {
return;
}
var descriptor = Object.getOwnPropertyDescriptor(Original, key); // If the user agent does not support `__proto__` or its family (IE <= 10),
// the sub class properties may be inherited properties from the super class in TypeScript.
// We need to exclude such properties to prevent to overwrite
// the component options object which stored on the extended constructor (See #192).
// If the value is a referenced value (object or function),
// we can check equality of them and exclude it if they have the same reference.
// If it is a primitive value, it will be forwarded for safety.
if (!hasProto) {
// Only `cid` is explicitly exluded from property forwarding
// because we cannot detect whether it is a inherited property or not
// on the no `__proto__` environment even though the property is reserved.
if (key === 'cid') {
return;
}
var superDescriptor = Object.getOwnPropertyDescriptor(Super, key);
if (!isPrimitive(descriptor.value) && superDescriptor && superDescriptor.value === descriptor.value) {
return;
}
} // Warn if the users manually declare reserved properties
if (process.env.NODE_ENV !== 'production' && reservedPropertyNames.indexOf(key) >= 0) {
warn("Static property name '".concat(key, "' declared on class '").concat(Original.name, "' ") + 'conflicts with reserved property name of Vue internal. ' + 'It may cause unexpected behavior of the component. Consider renaming the property.');
}
Object.defineProperty(Extended, key, descriptor);
});
}
function Component(options) {
if (typeof options === 'function') {
return componentFactory(options);
}
return function (Component) {
return componentFactory(Component, options);
};
}
Component.registerHooks = function registerHooks(keys) {
$internalHooks.push.apply($internalHooks, _toConsumableArray(keys));
};
export default Component;
export { createDecorator, mixins };