@cloud-copilot/iam-lens/dist/esm/workers/RingQueue.js

Visibility in IAM in and across AWS accounts

export class RingQueue {
    constructor(capacity) {
        this.head = 0;
        this.tail = 0;
        this.capacity = capacity;
        this.buffer = new Array(capacity);
        this.size = 0;
    }
    enqueue(item) {
        if (this.size >= this.capacity)
            return false;
        this.buffer[this.tail] = item;
        this.tail = (this.tail + 1) % this.capacity;
        this.size++;
        return true;
    }
    dequeue() {
        if (this.size === 0)
            return undefined;
        const item = this.buffer[this.head];
        this.buffer[this.head] = undefined;
        this.head = (this.head + 1) % this.capacity;
        this.size--;
        return item;
    }
    isEmpty() {
        return this.size === 0;
    }
    length() {
        return this.size;
    }
    isFull() {
        return this.size === this.capacity;
    }
}
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