Trait parity_scale_codec::EncodeAppend [−][src]
Trait that allows to append items to an encoded representation without decoding all previous added items.
Associated Types
Loading content...Required methods
fn append<'a, I: IntoIterator<Item = &'a Self::Item>>(
self_encoded: Vec<u8>,
iter: I
) -> Result<Vec<u8>, Error> where
Self::Item: 'a,
I::IntoIter: ExactSizeIterator,
[src]
self_encoded: Vec<u8>,
iter: I
) -> Result<Vec<u8>, Error> where
Self::Item: 'a,
I::IntoIter: ExactSizeIterator,
👎 Deprecated:
Consider using append_or_new
instead
Append all items in iter
to the given self_encoded
representation
or if self_encoded
value is empty then insert the given input data.
fn append_or_new<EncodeLikeItem, I>(
self_encoded: Vec<u8>,
iter: I
) -> Result<Vec<u8>, Error> where
I: IntoIterator<Item = EncodeLikeItem>,
EncodeLikeItem: EncodeLike<Self::Item>,
I::IntoIter: ExactSizeIterator,
[src]
self_encoded: Vec<u8>,
iter: I
) -> Result<Vec<u8>, Error> where
I: IntoIterator<Item = EncodeLikeItem>,
EncodeLikeItem: EncodeLike<Self::Item>,
I::IntoIter: ExactSizeIterator,
Append all items in iter
to the given self_encoded
representation
or if self_encoded
value is empty, iter
is encoded to the Self
representation.
Example
// Some encoded data let data = Vec::new(); let item = 8u32; let encoded = <Vec<u32> as EncodeAppend>::append(data, std::iter::once(&item)).expect("Adds new element"); // Add multiple element <Vec<u32> as EncodeAppend>::append(encoded, &[700u32, 800u32, 10u32]).expect("Adds new elements");
Implementations on Foreign Types
impl<T: Encode> EncodeAppend for Vec<T>
[src]
type Item = T
fn append<'a, I: IntoIterator<Item = &'a Self::Item>>(
self_encoded: Vec<u8>,
iter: I
) -> Result<Vec<u8>, Error> where
Self::Item: 'a,
I::IntoIter: ExactSizeIterator,
[src]
self_encoded: Vec<u8>,
iter: I
) -> Result<Vec<u8>, Error> where
Self::Item: 'a,
I::IntoIter: ExactSizeIterator,
fn append_or_new<EncodeLikeItem, I>(
self_encoded: Vec<u8>,
iter: I
) -> Result<Vec<u8>, Error> where
I: IntoIterator<Item = EncodeLikeItem>,
EncodeLikeItem: EncodeLike<Self::Item>,
I::IntoIter: ExactSizeIterator,
[src]
self_encoded: Vec<u8>,
iter: I
) -> Result<Vec<u8>, Error> where
I: IntoIterator<Item = EncodeLikeItem>,
EncodeLikeItem: EncodeLike<Self::Item>,
I::IntoIter: ExactSizeIterator,
impl<T: Encode> EncodeAppend for VecDeque<T>
[src]
type Item = T
fn append<'a, I: IntoIterator<Item = &'a Self::Item>>(
self_encoded: Vec<u8>,
iter: I
) -> Result<Vec<u8>, Error> where
Self::Item: 'a,
I::IntoIter: ExactSizeIterator,
[src]
self_encoded: Vec<u8>,
iter: I
) -> Result<Vec<u8>, Error> where
Self::Item: 'a,
I::IntoIter: ExactSizeIterator,
fn append_or_new<EncodeLikeItem, I>(
self_encoded: Vec<u8>,
iter: I
) -> Result<Vec<u8>, Error> where
I: IntoIterator<Item = EncodeLikeItem>,
EncodeLikeItem: EncodeLike<Self::Item>,
I::IntoIter: ExactSizeIterator,
[src]
self_encoded: Vec<u8>,
iter: I
) -> Result<Vec<u8>, Error> where
I: IntoIterator<Item = EncodeLikeItem>,
EncodeLikeItem: EncodeLike<Self::Item>,
I::IntoIter: ExactSizeIterator,