@selenite/graph-editor/dist/graph-editor/engine/utils/Cache.js

A graph editor for visual programming, based on rete and svelte.

export class Cache {
    onDelete;
    cache = new Map();
    constructor(onDelete) {
        this.onDelete = onDelete;
    }
    get(key) {
        return this.cache.get(key);
    }
    add(key, data) {
        if (this.cache.has(key))
            throw new Error('cache already exists');
        this.cache.set(key, data);
    }
    patch(key, data) {
        this.cache.set(key, data);
    }
    delete(key) {
        const item = this.cache.get(key);
        this.cache.delete(key);
        this.onDelete && this.onDelete(item);
    }
    clear() {
        Array.from(this.cache.keys()).forEach((item) => {
            this.delete(item);
        });
    }
}