@neo-one/smart-contract-compiler/dist/esm/utils/createMemoized.js

NEO•ONE TypeScript smart contract compiler.

const UNDEFINED_VALUE = Object.create(null);
export const createMemoized = () => {
    const caches = {};
    return (cacheName, name, getValue) => {
        let cache = caches[cacheName];
        if (cache === undefined) {
            cache = new Map();
            caches[cacheName] = cache;
        }
        let value = cache.get(name);
        if (value === undefined) {
            value = getValue();
            cache.set(name, value === undefined ? UNDEFINED_VALUE : value);
        }
        if (value === UNDEFINED_VALUE) {
            return undefined;
        }
        return value;
    };
};

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