- * Return the first index at which a loosely equal value can be
- * found in the array (if value is a plain object, the array must
- * contain an object of the same shape), or -1 if it is not present.
- */
- function looseIndexOf (arr, val) {
- for (var i = 0; i < arr.length; i++) {
- if (looseEqual(arr[i], val)) { return i }
- }
- return -1
- }
-
- /**
- * Ensure a function is called only once.
- */
- function once (fn) {
- var called = false;
- return function () {
- if (!called) {
- called = true;
- fn.apply(this, arguments);
- }
- }
- }
-
- var SSR_ATTR = 'data-server-rendered';
-
- var ASSET_TYPES = [
- 'component',
- 'directive',
- 'filter'
- ];
-
- var LIFECYCLE_HOOKS = [
- 'beforeCreate',
- 'created',
- 'beforeMount',
- 'mounted',
- 'beforeUpdate',
- 'updated',
- 'beforeDestroy',
- 'destroyed',
- 'activated',
- 'deactivated',
- 'errorCaptured',
- 'serverPrefetch'
- ];
-
- /* */
-
-
-
- var config = ({
- /**
- * Option merge strategies (used in core/util/options)
- */
- // $flow-disable-line
- optionMergeStrategies: Object.create(null),
-
- /**
- * Whether to suppress warnings.
- */
- silent: false,
-
- /**
- * Show production mode tip message on boot?
- */
- productionTip: "development" !== 'production',
-
- /**
- * Whether to enable devtools
- */
- devtools: "development" !== 'production',
-
- /**
- * Whether to record perf
- */
- performance: false,
-
- /**
- * Error handler for watcher errors
- */
- errorHandler: null,
-
- /**
- * Warn handler for watcher warns
- */
- warnHandler: null,
-
- /**
- * Ignore certain custom elements
- */
- ignoredElements: [],
-
- /**
- * Custom user key aliases for v-on
- */
- // $flow-disable-line
- keyCodes: Object.create(null),
-
- /**
- * Check if a tag is reserved so that it cannot be registered as a
- * component. This is platform-dependent and may be overwritten.
- */
- isReservedTag: no,
-
- /**
- * Check if an attribute is reserved so that it cannot be used as a component
- * prop. This is platform-dependent and may be overwritten.
- */
- isReservedAttr: no,
-
- /**
- * Check if a tag is an unknown element.
- * Platform-dependent.
- */
- isUnknownElement: no,
-
- /**
- * Get the namespace of an element
- */
- getTagNamespace: noop,
-
- /**
- * Parse the real tag name for the specific platform.
- */
- parsePlatformTagName: identity,
-
- /**
- * Check if an attribute must be bound using property, e.g. value
- * Platform-dependent.
- */
- mustUseProp: no,
-
- /**
- * Perform updates asynchronously. Intended to be used by Vue Test Utils
- * This will significantly reduce performance if set to false.
- */
- async: true,
-
- /**
- * Exposed for legacy reasons
- */
- _lifecycleHooks: LIFECYCLE_HOOKS
- });
-
- /* */
-
- /**
- * unicode letters used for parsing html tags, component names and property paths.
- * using https://www.w3.org/TR/html53/semantics-scripting.html#potentialcustomelementname
- * skipping \u10000-\uEFFFF due to it freezing up PhantomJS
- */
- var unicodeRegExp = /a-zA-Z\u00B7\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u037D\u037F-\u1FFF\u200C-\u200D\u203F-\u2040\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD/;
-
- /**
- * Check if a string starts with $ or _
- */
- function isReserved (str) {
- var c = (str + '').charCodeAt(0);
- return c === 0x24 || c === 0x5F
- }
-
- /**
- * Define a property.
- */
- function def (obj, key, val, enumerable) {
- Object.defineProperty(obj, key, {
- value: val,
- enumerable: !!enumerable,
- writable: true,
- configurable: true
- });
- }
-
- /**
- * Parse simple path.
- */
- var bailRE = new RegExp(("[^" + (unicodeRegExp.source) + ".$_\\d]"));
- function parsePath (path) {
- if (bailRE.test(path)) {
- return
- }
- var segments = path.split('.');
- return function (obj) {
- for (var i = 0; i < segments.length; i++) {
- if (!obj) { return }
- obj = obj[segments[i]];
- }
- return obj
- }
- }
-
- /* */
-
- // can we use __proto__?
- var hasProto = '__proto__' in {};
-
- // Browser environment sniffing
- var inBrowser = typeof window !== 'undefined';
- var inWeex = typeof WXEnvironment !== 'undefined' && !!WXEnvironment.platform;
- var weexPlatform = inWeex && WXEnvironment.platform.toLowerCase();
- var UA = inBrowser && window.navigator.userAgent.toLowerCase();