import { createDecorator } from 'vue-class-component';
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/**
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* decorator of a watch function
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* @param path the path or the expression to observe
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* @param WatchOption
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* @return MethodDecorator
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*/
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export function Watch(path, options) {
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if (options === void 0) { options = {}; }
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var _a = options.deep, deep = _a === void 0 ? false : _a, _b = options.immediate, immediate = _b === void 0 ? false : _b;
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return createDecorator(function (componentOptions, handler) {
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if (typeof componentOptions.watch !== 'object') {
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componentOptions.watch = Object.create(null);
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}
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var watch = componentOptions.watch;
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if (typeof watch[path] === 'object' && !Array.isArray(watch[path])) {
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watch[path] = [watch[path]];
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}
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else if (typeof watch[path] === 'undefined') {
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watch[path] = [];
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}
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watch[path].push({ handler: handler, deep: deep, immediate: immediate });
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});
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}
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