generated from ShadowVR/AI_botter
41 lines
1.9 KiB
JavaScript
41 lines
1.9 KiB
JavaScript
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"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.hasMixin = exports.registerMixins = exports.getMixinsForClass = void 0;
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const util_1 = require("./util");
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// Keeps track of constituent classes for every mixin class created by ts-mixer.
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const mixins = new Map();
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const getMixinsForClass = (clazz) => mixins.get(clazz);
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exports.getMixinsForClass = getMixinsForClass;
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const registerMixins = (mixedClass, constituents) => mixins.set(mixedClass, constituents);
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exports.registerMixins = registerMixins;
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const hasMixin = (instance, mixin) => {
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if (instance instanceof mixin)
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return true;
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const constructor = instance.constructor;
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const visited = new Set();
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let frontier = new Set();
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frontier.add(constructor);
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while (frontier.size > 0) {
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// check if the frontier has the mixin we're looking for. if not, we can say we visited every item in the frontier
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if (frontier.has(mixin))
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return true;
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frontier.forEach(item => visited.add(item));
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// build a new frontier based on the associated mixin classes and prototype chains of each frontier item
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const newFrontier = new Set();
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frontier.forEach(item => {
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var _a;
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const itemConstituents = (_a = mixins.get(item)) !== null && _a !== void 0 ? _a : (0, util_1.protoChain)(item.prototype).map(proto => proto.constructor).filter(item => item !== null);
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if (itemConstituents)
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itemConstituents.forEach(constituent => {
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if (!visited.has(constituent) && !frontier.has(constituent))
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newFrontier.add(constituent);
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});
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});
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// we have a new frontier, now search again
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frontier = newFrontier;
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}
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// if we get here, we couldn't find the mixin anywhere in the prototype chain or associated mixin classes
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return false;
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};
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exports.hasMixin = hasMixin;
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