type-plus/esm/functional/context.js

Provides additional types for TypeScript.

/**
 * Creates a context builder.
 *
 * @param init The initial context or an context initializer.
 * @return the context builder where you can
 * use `extend()` to add context, and
 * use `build()` to build the context.
 */
export function context(init) {
    // eslint-disable-next-line @typescript-eslint/no-unsafe-return
    return typeof init === 'function' ? contextBuilder({}, [[init]]) : contextBuilder(init ?? {}, []);
}
/* eslint-disable */
function contextBuilder(init, extenders) {
    return {
        extend(extender) {
            return contextBuilder(init, extenders.concat([[extender]]));
        },
        build() {
            return extenders.reduce((p, [t], i) => {
                const v = typeof t === 'function' ? (extenders[i][0] = t(p)) : t;
                return { ...p, ...v };
            }, init);
        }
    };
}
/* eslint-enable */
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