react-native-drawing/lib/dist/shared/utils/SymbolParser/IdAllocator.js

A React Native library that provides a canvas to perform drawing actions

/**
 * Manages availability of odentificators
*/
export class IdAllocator {
    constructor(checkAvailability) {
        Object.defineProperty(this, "checkAvailability", {
            enumerable: true,
            configurable: true,
            writable: true,
            value: checkAvailability
        });
        Object.defineProperty(this, "maxLinealAssigned", {
            enumerable: true,
            configurable: true,
            writable: true,
            value: Number.MIN_SAFE_INTEGER
        });
    }
    getFree() {
        let id;
        while (id === undefined) {
            const idCandidate = ++this.maxLinealAssigned;
            const isAvailable = this.checkAvailability(idCandidate);
            if (isAvailable) {
                id = idCandidate;
            }
        }
        return id;
    }
}