git.delta.rocks / unique-network / refs/commits / 50ff12a1bcf4

259impl_tuples! {A B C D E F G H I}259impl_tuples! {A B C D E F G H I}
260impl_tuples! {A B C D E F G H I J}260impl_tuples! {A B C D E F G H I J}
261
262//----- impls for Option -----
263impl<T: AbiType> AbiType for Option<T> {
264	const SIGNATURE: SignatureUnit = <(bool, T)>::SIGNATURE;
265
266	fn is_dynamic() -> bool {
267		<(bool, T)>::is_dynamic()
268	}
269
270	fn size() -> usize {
271		<(bool, T)>::size()
272	}
273}
274
275impl<T: AbiWrite + AbiType + Default> AbiWrite for Option<T> {
276	fn abi_write(&self, writer: &mut AbiWriter) {
277		match self {
278			Some(value) => (true, value).abi_write(writer),
279			None => (true, T::default()).abi_write(writer),
280		}
281	}
282}
283
284impl<T> AbiRead for Option<T>
285where
286	Self: AbiType,
287	T: AbiRead + AbiType,
288{
289	fn abi_read(reader: &mut AbiReader) -> Result<Self>
290	where
291		Self: Sized,
292	{
293		let (status, value) = <(bool, T)>::abi_read(reader)?;
294		Ok(if status { Some(value) } else { None })
295	}
296}
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