Cargo Features
[dependencies]
parity-scale-codec = { version = "3.6.12", default-features = false, features = ["std", "derive", "bit-vec", "fuzz", "max-encoded-len", "chain-error", "full", "bytes", "generic-array"] }
- default = std
-
The
std
feature is set by default wheneverparity-scale-codec
is added without
somewhere in the dependency tree.default-features = false - std default fuzz? = chain-error
-
Enables std of optional bitvec, byte-slice-cast, and serde
bitvec:
The standard library includes the allocator.
Affects
codec::IoReader
,parity-scale-codec::alloc
… - derive = parity-scale-codec-derive
- bit-vec = bitvec
- fuzz = arbitrary, std
- max-encoded-len
-
Enables the new
MaxEncodedLen
trait. NOTE: This is still considered experimental and is exempt from the usual SemVer guarantees. We do not guarantee no code breakage when using this.Enables max-encoded-len of optional parity-scale-codec-derive
- chain-error std
-
Make error fully descriptive with chaining error message.
Should not be used in a constrained environment. - full
-
This does not do anthing anymore. Remove with the next major release.
Features from optional dependencies
In crates that don't use the dep:
syntax, optional dependencies automatically become Cargo features. These features may have been created by mistake, and this functionality may be removed in the future.
- serde std
- parity-scale-codec-derive derive?
- bitvec bit-vec?
- bytes implicit feature
-
Enables bytes
bytes:
Types and traits for working with bytes
Affects
codec::Input.scale_internal_decode_bytes
,codec::decode_from_bytes
… - generic-array implicit feature
-
Enables generic-array ^0.14.7
generic-array:
Generic types implementing functionality of arrays
- arbitrary fuzz?