37 lines
1.1 KiB
TypeScript
37 lines
1.1 KiB
TypeScript
export function APIPathGen<T extends object, V>(
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obj: T,
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callback: (path: string[], tail: V, pathParam?: Record<string, string | number>) => unknown,
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path: string[] = [],
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): T {
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const map = new Map<string, unknown>();
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return new Proxy(obj, {
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get(target, key) {
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if(typeof key === 'symbol'){
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throw new Error('Symbol is not supported');
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}
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if(map.has(key)){
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return map.get(key)!;
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}
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const nextPath = [...path, key];
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let next: T[keyof T];
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if (key in target) {
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next = target[key as keyof typeof target];
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}
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else {
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throw `${nextPath} is not exists`;
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}
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if (typeof (next) === 'function') {
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const result = callback(nextPath, next);
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map.set(key, result);
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return result;
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}
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const result = APIPathGen<T[keyof T], V>(next, callback, nextPath);
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map.set(key, result);
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return result;
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}
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}) as T;
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}; |