64 lines
2.1 KiB
TypeScript
64 lines
2.1 KiB
TypeScript
export function toCamelCaseKey(key: string): string {
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return key.replace(/_([a-zA-Z])/g, (_, c: string) => c.toUpperCase());
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}
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export function toSnakeCaseKey(key: string): string {
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return key.replace(/[A-Z]/g, (m) => `_${m.toLowerCase()}`);
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}
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/**
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* 创建一个代理对象，使得读取属性时同时兼容 snake_case 与 camelCase 键名。
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* 访问顺序：原名 -> camelCase -> snake_case
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*/
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export function createCamelCompatibleProxy<T extends object>(root: T): T {
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const seen = new WeakMap<object, any>();
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const wrap = (value: any): any => {
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if (value === null || typeof value !== 'object') return value;
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if (seen.has(value)) return seen.get(value);
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const proxied = new Proxy(value, handler);
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seen.set(value, proxied);
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return proxied;
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};
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const handler: ProxyHandler<any> = {
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get(target, prop, receiver) {
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// 非字符串属性（如 Symbol、数字索引）直接透传
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if (typeof prop !== 'string') {
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return wrap(Reflect.get(target, prop, receiver));
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}
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const primary = prop;
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if (primary in target) return wrap(Reflect.get(target, primary, receiver));
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const camel = toCamelCaseKey(primary);
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if (camel in target) return wrap(Reflect.get(target, camel, receiver));
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const snake = toSnakeCaseKey(primary);
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if (snake in target) return wrap(Reflect.get(target, snake, receiver));
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return wrap(Reflect.get(target, prop, receiver));
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},
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has(target, prop) {
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if (typeof prop !== 'string') return prop in target;
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const primary = prop === 'auther' ? 'autherInfo' : prop;
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return (
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primary in target ||
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toCamelCaseKey(primary) in target ||
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toSnakeCaseKey(primary) in target
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);
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}
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};
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return wrap(root);
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}
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/** 选择首个可用 URL */
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export function pickFirstUrl(list?: string[]) {
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return Array.isArray(list) && list.length ? list[0] : undefined;
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}
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// 别名，兼容旧命名
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export const firstUrl = pickFirstUrl;
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