vue-class-component/lib/vue.js

function isFunction(value) {
    return typeof value === 'function';
}
function getSuperOptions(Ctor) {
    const superProto = Object.getPrototypeOf(Ctor.prototype);
    if (!superProto) {
        return undefined;
    }
    const Super = superProto.constructor;
    return Super.__vccOpts;
}
export class Vue {
    constructor(props) {
        this.$props = props;
        Object.keys(props).forEach(key => {
            Object.defineProperty(this, key, {
                enumerable: false,
                configurable: true,
                writable: true,
                value: props[key]
            });
        });
    }
    /** @internal */
    static get __vccOpts() {
        // Early return if `this` is base class as it does not have any options
        if (this === Vue) {
            return {};
        }
        const cache = this.hasOwnProperty('__vccCache') && this.__vccCache;
        if (cache) {
            return cache;
        }
        const Ctor = this;
        // If the options are provided via decorator use it as a base
        const options = this.__vccCache = this.hasOwnProperty('__vccBase')
            ? { ...this.__vccBase }
            : {};
        // Handle super class options
        options.extends = getSuperOptions(Ctor);
        // Handle mixins
        const mixins = this.hasOwnProperty('__vccMixins') && this.__vccMixins;
        if (mixins) {
            options.mixins = options.mixins ? options.mixins.concat(mixins) : mixins;
        }
        // Class name -> component name
        options.name = options.name || Ctor.name;
        options.methods = { ...options.methods };
        options.computed = { ...options.computed };
        const proto = Ctor.prototype;
        Object.getOwnPropertyNames(proto).forEach(key => {
            if (key === 'constructor') {
                return;
            }
            // hooks
            if (Ctor.__vccHooks.indexOf(key) > -1) {
                options[key] = proto[key];
                return;
            }
            const descriptor = Object.getOwnPropertyDescriptor(proto, key);
            // methods
            if (typeof descriptor.value === 'function') {
                options.methods[key] = descriptor.value;
                return;
            }
            // computed properties
            if (descriptor.get || descriptor.set) {
                options.computed[key] = {
                    get: descriptor.get,
                    set: descriptor.set
                };
                return;
            }
        });
        // Class properties -> reactive data
        const hookDataOption = options.data;
        options.data = function () {
            const hookData = isFunction(hookDataOption)
                ? hookDataOption.call(this, this)
                : hookDataOption;
            // should be acquired class property values
            const data = new Ctor(this.$props);
            // create plain data object
            const plainData = {};
            Object.keys(data).forEach(key => {
                if (data[key] !== undefined && key !== '$props') {
                    plainData[key] = data[key];
                }
            });
            return {
                ...hookData,
                ...plainData
            };
        };
        const decorators = this.hasOwnProperty('__vccDecorators') && this.__vccDecorators;
        if (decorators) {
            decorators.forEach(fn => fn(options));
        }
        // from Vue Loader
        if (Ctor.render) {
            options.render = Ctor.render;
        }
        if (Ctor.__file) {
            options.__file = Ctor.__file;
        }
        if (Ctor.__cssModules) {
            options.__cssModules = Ctor.__cssModules;
        }
        if (Ctor.__scopeId) {
            options.__scopeId = Ctor.__scopeId;
        }
        return options;
    }
    static registerHooks(keys) {
        this.__vccHooks.push(...keys);
    }
}
/** @internal */
Vue.__vccHooks = [
    'data',
    'beforeCreate',
    'created',
    'beforeMount',
    'mounted',
    'beforeUnmount',
    'unmounted',
    'beforeUpdate',
    'updated',
    'activated',
    'deactivated',
    'render',
    'errorCaptured',
    'serverPrefetch'
];