@formily/reactive/esm/annotations/ref.js

> Web Reactive Library Like Mobx

import { ObModelSymbol } from '../environment';
import { createAnnotation } from '../internals';
import { buildDataTree } from '../tree';
import { bindTargetKeyWithCurrentReaction, runReactionsFromTargetKey, } from '../reaction';
export var ref = createAnnotation(function (_a) {
    var target = _a.target, key = _a.key, value = _a.value;
    var store = {
        value: target ? target[key] : value,
    };
    var proxy = {};
    var context = target ? target : store;
    var property = target ? key : 'value';
    function get() {
        bindTargetKeyWithCurrentReaction({
            target: context,
            key: property,
            type: 'get',
        });
        return store.value;
    }
    function set(value) {
        var oldValue = store.value;
        store.value = value;
        if (oldValue !== value) {
            runReactionsFromTargetKey({
                target: context,
                key: property,
                type: 'set',
                oldValue: oldValue,
                value: value,
            });
        }
    }
    if (target) {
        Object.defineProperty(target, key, {
            get: get,
            set: set,
            enumerable: true,
        });
        return target;
    }
    else {
        Object.defineProperty(proxy, 'value', {
            set: set,
            get: get,
        });
        buildDataTree(target, key, store);
        proxy[ObModelSymbol] = store;
    }
    return proxy;
});
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