parity-scale-codec

What's Changed

• chore: max MaxEncodedLen derivation as automatically_derived by @saiintbrisson in #703
• Bump quote from 1.0.38 to 1.0.39 by @dependabot in #707
• Bump syn from 2.0.98 to 2.0.99 by @dependabot in #708
• Bump proc-macro2 from 1.0.93 to 1.0.94 by @dependabot in #706
• Bump byte-slice-cast from 1.2.2 to 1.2.3 by @dependabot in #712
• Bump bytes from 1.10.0 to 1.10.1 by @dependabot in #710
• Bump trybuild from 1.0.103 to 1.0.104 by @dependabot in #714
• Bump rustversion from 1.0.19 to 1.0.20 by @dependabot in #711
• Bump serde from 1.0.217 to 1.0.218 by @dependabot in #704
• Implement on_before_alloc_mem() for CountedInput by @serban300 in #716
• Bump quote from 1.0.39 to 1.0.40 by @dependabot in #719
• Bump syn from 2.0.99 to 2.0.100 by @dependabot in #718
• Make clippy happy for some casts by @bkchr in #715
• Bump honggfuzz from 0.5.56 to 0.5.57 by @dependabot in #720
• Bump serde from 1.0.218 to 1.0.219 by @dependabot in #717
• Fix typo by @PolkadotDom in #722
• Bump proc-macro2 from 1.0.94 to 1.0.95 by @dependabot in #725
• Fix derive(Decode) for enums with lifetime parameters and struct-like variants by @ImplOfAnImpl in #726
• Bump syn from 2.0.100 to 2.0.101 by @dependabot in #727
• Bump trybuild from 1.0.104 to 1.0.105 by @dependabot in #732
• Fix DecodeWithMemTracking bounds for Cow by @bkchr in #735
• Fix performance regression by @serban300 in #731

New Contributors

• @saiintbrisson made their first contribution in #703
• @PolkadotDom made their first contribution in #722
• @ImplOfAnImpl made their first contribution in #726

Full Changelog: v3.7.4...v3.7.5

What's Changed

• Follow-up on #663 by @serban300 in #693
• Bump syn from 2.0.96 to 2.0.98 by @dependabot in #697
• Fix breaking change: Do not enforce discriminant to be a literal + don't expect usize. by @gui1117 in #695
• update cargo lock by @gui1117 in #700
• Enforce parity-scale-codec-derive version with =x.y.z. by @gui1117 in #696
• Have some release guideline by @gui1117 in #694
• Bump bytes from 1.9.0 to 1.10.0 by @dependabot in #698
• Bump criterion from 0.4.0 to 0.5.1 by @dependabot in #591
• Release 3.7.4 by @serban300 in #701
• Disallow duplicate indexes using constant evaluation #653

Full Changelog: v.3.7.3...v3.7.4

Release 3.7.3 (#690)

What's Changed

• Bump trybuild from 1.0.83 to 1.0.84 by @dependabot in #519
• Bump proc-macro2 from 1.0.66 to 1.0.67 by @dependabot in #523
• Bump trybuild from 1.0.84 to 1.0.85 by @dependabot in #524
• Bump proptest from 1.2.0 to 1.3.1 by @dependabot in #525
• Bump bytes from 1.4.0 to 1.5.0 by @dependabot in #513
• Bump proc-macro2 from 1.0.67 to 1.0.68 by @dependabot in #526
• Update UI tests for 1.73.0 by @bkchr in #530
• Bump arbitrary from 1.0.3 to 1.3.1 by @dependabot in #528
• Bump serde from 1.0.188 to 1.0.189 by @dependabot in #531
• Bump proc-macro2 from 1.0.68 to 1.0.69 by @dependabot in #527
• Bump rustix from 0.37.18 to 0.37.25 by @dependabot in #533
• [ci] Add job to publish crates by @alvicsam in #517
• Bump serde from 1.0.189 to 1.0.190 by @dependabot in #534
• Bump proc-macro-crate to 2.0.0 by @ascjones in #535
• Adding gitspiegel-trigger workflow by @mutantcornholio in #537
• Bump arbitrary from 1.3.1 to 1.3.2 by @dependabot in #538
• Bump serde from 1.0.190 to 1.0.192 by @dependabot in #540
• Fixing gitspiegel trigger workflow by @mutantcornholio in #541
• Bump serde from 1.0.192 to 1.0.193 by @dependabot in #543
• Bump proc-macro2 from 1.0.69 to 1.0.70 by @dependabot in #544
• Bump proc-macro-crate from 2.0.0 to 2.0.1 by @dependabot in #547
• [ci] fix publish job by @alvicsam in #548
• Switch CI from GitLab to GitHub Actions by @sergejparity in #546
• Bump trybuild from 1.0.85 to 1.0.86 by @dependabot in #549
• Bump proc-macro2 from 1.0.70 to 1.0.73 by @dependabot in #553
• Bump quote from 1.0.33 to 1.0.34 by @dependabot in #552
• Bump proc-macro2 from 1.0.73 to 1.0.74 by @dependabot in #554
• Bump quote from 1.0.34 to 1.0.35 by @dependabot in #556
• Bump proc-macro-crate from 2.0.1 to 3.0.0 by @dependabot in #558
• Bump proc-macro2 from 1.0.74 to 1.0.75 by @dependabot in #557
• Bump serde from 1.0.193 to 1.0.194 by @dependabot in #559
• Bump serde from 1.0.194 to 1.0.195 by @dependabot in #561
• Bump proc-macro2 from 1.0.75 to 1.0.76 by @dependabot in #560
• Bump trybuild from 1.0.86 to 1.0.88 by @dependabot in #563
• Bump trybuild from 1.0.88 to 1.0.89 by @dependabot in #566
• Bump proc-macro-crate from 3.0.0 to 3.1.0 by @dependabot in #567
• Bump proc-macro2 from 1.0.76 to 1.0.78 by @dependabot in #568
• Bump serde from 1.0.195 to 1.0.196 by @dependabot in #570
• Bump serde from 1.0.196 to 1.0.197 by @dependabot in #571
• Bump proc-macro2 from 1.0.78 to 1.0.79 by @dependabot in #572
• Bump trybuild from 1.0.89 to 1.0.90 by @dependabot in #573
• Bump bytes from 1.5.0 to 1.6.0 by @dependabot in #574
• Bump trybuild from 1.0.90 to 1.0.91 by @dependabot in #577
• Bump quote from 1.0.35 to 1.0.36 by @dependabot in #578
• Bump serde from 1.0.197 to 1.0.198 by @dependabot in #580
• Bump proc-macro2 from 1.0.79 to 1.0.81 by @dependabot in #581
• Bump serde from 1.0.198 to 1.0.199 by @dependabot in #584
• Source code formatting by @kalaninja in #583
• Fix PrefixInput read by @kalaninja in #582
• Bump serde from 1.0.199 to 1.0.200 by @dependabot in #585
• Bump trybuild from 1.0.91 to 1.0.94 by @dependabot in #589
• Bump proc-macro2 from 1.0.81 to 1.0.82 by @dependabot in #588
• Bump serde from 1.0.200 to 1.0.201 by @dependabot in #592
• Bump trybuild from 1.0.94 to 1.0.95 by @dependabot in #593
• Bump paste from 1.0.14 to 1.0.15 by @dependabot in #594
• Add the repository field to Cargo.toml by @szabgab in #595
• Bump serde from 1.0.201 to 1.0.202 by @dependabot in #596
• Bump trybuild from 1.0.95 to 1.0.96 by @dependabot in #597
• Bump proc-macro2 from 1.0.82 to 1.0.83 by @dependabot in #598
• Bump honggfuzz from 0.5.55 to 0.5.56 by @dependabot in #599
• Bump proc-macro2 from 1.0.83 to 1.0.84 by @dependabot in #600
• Bump serde from 1.0.202 to 1.0.203 by @dependabot in #601
• Bump proc-macro2 from 1.0.84 to 1.0.85 by @dependabot in #604
• Bump proc-macro2 from 1.0.85 to 1.0.86 by @dependabot in #606
• Bump proptest from 1.3.1 to 1.5.0 by @dependabot in #607
• Bump serde from 1.0.203 to 1.0.204 by @dependabot in #611
• Bump trybuild from 1.0.96 to 1.0.97 by @dependabot in #612
• Bump bytes from 1.6.0 to 1.6.1 by @dependabot in #614
• Use MAX_PREALLOCATION consistently by @serban300 in #605
• Follow-up on #605 by @serban300 in #615
• Bump trybuild from 1.0.97 to 1.0.98 by @dependabot in #617
• Bump bytes from 1.6.1 to 1.7.1 by @dependabot in #620
• Bump trybuild from 1.0.98 to 1.0.99 by @dependabot in #619
• Fix MaxEncodedLen derive macro for enum with skipped variant by @gui1117 in #622
• Bump serde from 1.0.204 to 1.0.209 by @dependabot in #625
• Bump arrayvec from 0.7.4 to 0.7.6 by @dependabot in #624
• Bump quote from 1.0.36 to 1.0.37 by @dependabot in #626
• Bump serde from 1.0.209 to 1.0.210 by @dependabot in #627
• Bump bytes from 1.7.1 to 1.7.2 by @dependabot in #629
• Introduce CountedInput. a wrapper which counts the number of bytes successfully read by @gui1117 in #630
• Bump proc-macro2 from 1.0.86 to 1.0.87 by @dependabot in #632
• Decode with mem limit by @serban300 in #616
• Bump trybuild from 1.0.99 to 1.0.100 by @dependabot in #635
• Bump rustversion from 1.0.17 to 1.0.18 by @dependabot in #634
• Bump proc-macro2 from 1.0.87 to 1.0.88 by @dependabot in #636
• Bump trybuild from 1.0.100 to 1.0.101 by @dependabot in #637
• Bump bytes from 1.7.2 to 1.8.0 by @dependabot in #638
• Bump serde from 1.0.210 to 1.0.211 by @dependabot in #639
• Bump serde from 1.0.211 to 1.0.213 by @dependabot in #644
• Bump proc-macro2 from 1.0.88 to 1.0.89 by @dependabot in #642
• chore(deps): Update to syn 2 by @jsdw in #640
• Bump syn from 2.0.82 to 2.0.85 by @dependabot in #647
• Bump arbitrary from 1.3.2 to 1.4.0 by @dependabot in #651
• Bump syn from 2.0.85 to 2.0.87 by @dependabot in #650
• Bump arbitrary from 1.4.0 to 1.4.1 by @dependabot in #652
• Bump serde from 1.0.213 to 1.0.214 by @dependabot in #648
• Bump serde from 1.0.214 to 1.0.215 by @dependabot in #654
• Prep to release 3.7.0 by @jsdw in #646

New Contributors

• @mutantcornholio made their first contribution in #537
• @kalaninja made their first contribution in #583
• @szabgab made their first contribution in #595
• @serban300 made their first contribution in #605

Full Changelog: v3.6.8...v3.7.0

Added

• Allow decoding with a memory limit. (616)
• Introduce CountedInput, an wrapper on Input that counts the bytes read. (630)

Changed

• This release bumps some dependencies, primarily bumping syn to 2. (#640).

Fixed

• Fix MaxEncodedLen derive macro for enum with skipped variant (#622)
• Use MAX_PREALLOCATION consistently #605

Full Changelog: v3.6.11...v3.6.12

Full Changelog: v3.6.10...v3.6.11

What's Changed

• chore(docs): Restore missing doc for codec-crate attribute by @gshep in #576
• Bump proc-macro-crate to v3.1.0 in 3.6.x branch by @tdimitrov in #590

New Contributors

• @tdimitrov made their first contribution in #590

Full Changelog: v3.6.9...v3.6.10

What's Changed

• Bump trybuild from 1.0.83 to 1.0.84 by @dependabot in #519
• Bump proc-macro2 from 1.0.66 to 1.0.67 by @dependabot in #523
• Bump trybuild from 1.0.84 to 1.0.85 by @dependabot in #524
• Bump proptest from 1.2.0 to 1.3.1 by @dependabot in #525
• Bump bytes from 1.4.0 to 1.5.0 by @dependabot in #513
• Bump proc-macro2 from 1.0.67 to 1.0.68 by @dependabot in #526
• Update UI tests for 1.73.0 by @bkchr in #530
• Bump arbitrary from 1.0.3 to 1.3.1 by @dependabot in #528
• Bump serde from 1.0.188 to 1.0.189 by @dependabot in #531
• Bump proc-macro2 from 1.0.68 to 1.0.69 by @dependabot in #527
• Bump rustix from 0.37.18 to 0.37.25 by @dependabot in #533
• [ci] Add job to publish crates by @alvicsam in #517
• Bump serde from 1.0.189 to 1.0.190 by @dependabot in #534
• Bump proc-macro-crate to 2.0.0 by @ascjones in #535
• Adding gitspiegel-trigger workflow by @mutantcornholio in #537
• Bump arbitrary from 1.3.1 to 1.3.2 by @dependabot in #538
• Bump serde from 1.0.190 to 1.0.192 by @dependabot in #540
• Fixing gitspiegel trigger workflow by @mutantcornholio in #541
• Bump serde from 1.0.192 to 1.0.193 by @dependabot in #543
• Bump proc-macro2 from 1.0.69 to 1.0.70 by @dependabot in #544
• Revert breaking changes, bump version to 3.6.9 by @ascjones in #545

New Contributors

• @mutantcornholio made their first contribution in #537

Full Changelog: v3.6.8...v3.6.9

What's Changed

• impl compact<()> for MaxEncodedLen by @pgherveou in #516
• bump 3.6.8 by @pgherveou in #518

Full Changelog: v3.6.7...v3.6.8

What's Changed

• Update MaxEncodedLen derive macro by @pgherveou in #512
• Bump to 3.6.7 by @pgherveou in #515

Full Changelog: v.3.6.6...v3.6.7

Added

• Now #[derive(Encode)] implements the size_hint() method for structures and enumerations. This improves the performance of the encode() method by pre-allocating memory.

Fixed

• Provide full path to elements from ::core in Decode derivation (caused compilation error when no-implicit-prelude was used).

Fixed

• Trying to deserialize a boxed newtype containing a big array won't overflow the stack anymore.

Fixed

• Deriving Decode will not trigger clippy warnings anymore

Added

• Added Decode::decode_into to allow deserializing into unitialized memory.
• Added a DecodeFinished type to be used with Decode::decode_into.

Fixed

• Trying to deserialize a big boxed array (e.g. Box<[u8; 1024 * 1024 * 1024]>) won't overflow the stack anymore.
• Trying to deserialize big nested enums with many variants won't overflow the stack anymore.
• Elements of partially read arrays will now be properly dropped if the whole array wasn't decoded.

Changed

• The derive macros will now be reexported only when the derive feature is enabled, as opposed to how it was previously where enabling parity-scale-codec-derive would suffice.
• The max-encoded-len feature won't automatically enable the derive macros nor pull in the parity-scale-codec-derive dependency.

This release fixes compilation on no-std envs.

Changed

• Use core RangeInclusive instead of std #378

This release (specifically #375) bumps the MSRV to 1.60.0 as it depends on the Cargo.toml weak dependency feature.

Changed

• Don't include bitvec with std feature unless asked for explicitly. #375
• Implement MaxEncodedLen on more core lib types. #350

A quick release to fix an issue introduced in 3.1.4 that broke compiling on no-std.

Changed

• Fix compiling on no-std. (see https://github.com/paritytech/parity-scale-codec/commit/c25f14a46546c75e4208363ced9d89aa81c85e7f)

Changed

• Impl MaxEncodedLen for Box<T>. #349
• Add decode_from_bytes. #342

Be aware that version 3.0.0. up to 3.1.1 contained some bugs in the BitVec encoder that could lead to an invalid encoding. Thus, we yanked these crate version and it is advised to upgrade to 3.1.2. Any release before 3.0.0 wasn't affected by this bug.

Changed

• Optimised the Decode::decode for [T; N] by @xgreenx. #299
• Add some doc for the derive macro by @thiolliere. #301
• Add bytes::Bytes implementation by @vorot93. #309
• Upgrade to BitVec 1.0 by @bkchr. #311
• BREAKING CHANGE: DecodeLimit and DecodeAll extensions now advance input by @wigy-opensource-developer. #314
• Make CompactRef public by @andrenth. #321
• Add ability to re-export parity-scale-codec crate by @gshep. #325
• BitVec: Improve the encoding and consolidate the implementations by @bkchr. #327
• Fix crate access by putting a leading :: by @bkchr. #328

Fix

• Optimised the Decode::decode for [T; N] #299

Changed

• Migrated to 2021 edition, enforcing MSRV of 1.56.1. #298
• Upgrade to BitVec 1.0 #311
• DecodeLimit and DecodeAll extensions now advance input #314

Added

• Add bytes::Bytes implementation #309

Fix

• Improve macro hygiene of Encode and Decode proc. macro expansions. (#291, #293)

Added

• decode_and_advance_with_depth_limit to the DecodeLimit trait. This allows advancing the cursor while decoding the input. PR #286

Added

• Add support for custom where bounds codec(mel_bound(T: MaxEncodedLen)) when deriving the traits. PR #279
• MaxEncodedLen trait for items that have a statically known maximum encoded size. (#268)
• #[codec(crate = <path>)] top-level attribute to be used with the new MaxEncodedLen trait, which allows to specify a different path to the crate that contains the MaxEncodedLen trait. Useful when using generating a type through a macro and this type should implement MaxEncodedLen and the final crate doesn't have parity-scale-codec as dependency.

Changed

• Lint attributes now pass through to the derived impls of Encode, Decode and CompactAs. PR #272

Fix

• Add support for custom where bounds codec(encode_bound(T: Encode)) and codec(decode_bound(T: Decode)) when deriving the traits. Pr #262
• Switch to const generics for array implementations. Pr #261

Fix

• Fix type inference issue in Decode derive macro. Pr #254

Added

• Decode::skip allows to skip some encoded types. Pr #243
• Decode::encoded_fixed_size allows to get the fixed encoded size of a type. PR #243
• Error now contains a chain of causes. This full error description can also be activated on no std using the feature chain-error. PR #242
• Encode::encoded_size allows to get the encoded size of a type more efficiently. PR #245

Changed

• CompactAs::decode_from now returns result. This allow for decoding to fail from their compact form.
• derive macro use literal index e.g. #[codec(index = 15)] instead of #[codec(index = "15")]
• Version of crates bitvec and generic-array is updated.
• Encode::encode_to now bounds the generic W: Output + ?Sized instead of W: Output.
• Output can now be used as a trait object.

Removed

• EncodeAppend::append is removed in favor of EncodeAppend::append_or_new.
• Output::push is removed in favor of Encode::encode_to.
• Some bounds on HasCompact::Type are removed.
• Error::what is removed in favor of Error::to_string (implemented through trait Display).
• Error::description is removed in favor of Error::to_string (implemented through trait Display).