@furystack/inject/esm/injectable.js

Core FuryStack package

/**
 * The default options for the injectable classes
 */
export const defaultInjectableOptions = {
    lifetime: 'transient',
};
export const InjectableOptionsSymbol = Symbol('InjectableOptions');
/**
 * Checks if the constructor is decorated with Injectable() with verifying if it has Injectable options
 * @param ctor The constructor to check
 * @returns if the constructor has the InjectableOptionsSymbol
 */
export const hasInjectableOptions = (ctor) => {
    return (typeof ctor[InjectableOptionsSymbol] === 'object' &&
        typeof ctor[InjectableOptionsSymbol].lifetime === 'string');
};
/**
 * @throws Error if the class is not an injectable
 * @param ctor The constructor to get the options from
 * @returns The InjectableOptions object
 */
export const getInjectableOptions = (ctor) => {
    if (!hasInjectableOptions(ctor)) {
        throw Error(`The class '${ctor.name}' is not an injectable`);
    }
    return ctor[InjectableOptionsSymbol];
};
/**
 * Decorator method for tagging a class as injectable
 * @param options The options object
 * @returns void
 */
export const Injectable = (options) => {
    return (ctor) => {
        Object.assign(ctor, {
            [InjectableOptionsSymbol]: {
                ...defaultInjectableOptions,
                ...options,
            },
        });
    };
};
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