cognitive-complexity-ts/build/ui/ts/util/EqMap.js

This program analyses TypeScript and JavaScript code according to the [Cognitive Complexity metric](https://www.sonarsource.com/docs/CognitiveComplexity.pdf).

export class EqMap {
    constructor(eq) {
        this.eq = eq;
        this.map = new Map();
    }
    findRealKey(givenKey) {
        for (const existingKey of this.map.keys()) {
            if (this.eq(givenKey, existingKey)) {
                return existingKey;
            }
        }
        return undefined;
    }
    get(key) {
        if (this.map.has(key)) {
            return this.map.get(key);
        }
        const realKey = this.findRealKey(key);
        if (realKey === undefined) {
            return undefined;
        }
        return this.map.get(realKey);
    }
    has(key) {
        if (this.map.has(key)) {
            return true;
        }
        return this.findRealKey(key) !== undefined;
    }
    set(key, val) {
        this.map.set(key, val);
    }
    values() {
        return this.map.values();
    }
    [Symbol.iterator]() {
        return this.map[Symbol.iterator]();
    }
}
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