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/// 统一 API 异常(对齐 uniApp request.js 的错误语义)
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class ApiException implements Exception {
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final int code;
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final String message;
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ApiException(this.code, this.message);
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@override
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String toString() => 'ApiException($code, $message)';
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}
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/// 从任意抛出对象中提取 ApiException(供 UI/Provider 捕获使用)
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ApiException asApiException(Object error) {
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if (error is ApiException) return error;
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return ApiException(-1, error.toString());
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}
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