使用 Swift JSONEncoder 编码时会发生什么错误
What errors can happen when encode with Swift JSONEncoder
JSONEncoder 方法 func encode<T>(_ value: T) throws -> Data where T : Encodable 是可抛出的。
我想知道为什么它是可抛出的：如果编码的值不符合Encodable，它不应该通过编译器，所以它应该不会在运行时发生错误。
来自JSONEncoder的source code：
/// - throws: `EncodingError.invalidValue` if a non-conforming floating-point value is encountered during encoding, and the encoding strategy is `.throw`.
/// - throws: An error if any value throws an error during encoding.
所有错误的调试说明：
Top-level (T.self) did not encode any values.
Top-level (T.self) encoded as null JSON fragment.
Top-level (T.self) encoded as number JSON fragment.
Top-level (T.self) encoded as string JSON fragment.
JSONEncoder 方法 func encode<T>(_ value: T) throws -> Data where T : Encodable 是可抛出的。
我想知道为什么它是可抛出的：如果编码的值不符合Encodable，它不应该通过编译器，所以它应该不会在运行时发生错误。
来自JSONEncoder的source code：
/// - throws: `EncodingError.invalidValue` if a non-conforming floating-point value is encountered during encoding, and the encoding strategy is `.throw`.
/// - throws: An error if any value throws an error during encoding.
所有错误的调试说明：
Top-level (T.self) did not encode any values.
Top-level (T.self) encoded as null JSON fragment.
Top-level (T.self) encoded as number JSON fragment.
Top-level (T.self) encoded as string JSON fragment.