onflow/cadence v0.39.0

on GitHub

What's Changed

⭐ Features

Capability Controllers

FLIP 798: Capability controllers got implemented.

You can start migrating existing uses of the linking-based capability API to the new Capability Controller API. The linking-based capability API is now deprecated and will be removed in a future release.

• Capability controllers by @turbolent in #2501

Compact Cadence Format

A codec for the new Cadence Compact Format (CCF) got implemented,
a more efficient format for encoding Cadence values. It is an alternative to the current JSON-Cadence format, and will eventually replace it.

• Add CCF codec implementing CCF Specification (RC1) by @fxamacker in #2364
• Support 2 new attachment types in CCF codec by @fxamacker in #2516

Standard Library

Thanks to a Developer Grant, new contributor @darkdrag00nv2 improved the standard library with many new features: 👏

• Add Address.fromBytes to create Address from [UInt8] by @darkdrag00nv2 in #2452
• Extend ordering comparisons (<, <=, >, >=) to Bool and Character by @darkdrag00nv2 in #2430
• Extend ordering comparison (<, <=, >, >=) to String by @darkdrag00nv2 in #2470
• Allow equality comparisons for dictionaries by @darkdrag00nv2 in #2414
• Implement Address.fromString by @darkdrag00nv2 in #2491
• Add fromBigEndianBytes conversion function to Number types by @darkdrag00nv2 in #2496
• Introduce Word128 integer type by @darkdrag00nv2 in #2497
• Introduce Word256 integer type by @darkdrag00nv2 in #2510
• Implement check functionality in AuthAccount by @darkdrag00nv2 in #2492

Tooling

• Introduce the Test.expectFailure function by @m-Peter in #2468
• Enrich test framework interface by @m-Peter in #2505
• Introduce a LocationFilter field on CoverageReport type by @m-Peter in #2474
• Add basic support for multiline input to REPL by @turbolent in #2434
• Add history support to REPL by @turbolent in #2442

🛠 Improvements

• Improve external types and JSON codec by @turbolent in #2401
• Add support for generating code of nested types by @turbolent in #2417
• Refactor AuthAccount and PublicAccount types to Cadence by @turbolent in #2418
• Refactor and optimize types by @turbolent in #2419
• Update handling of user errors returned by atree by @fxamacker in #2426
• Add more built-in matchers to the Cadence Testing Framework by @m-Peter in #2420
• Add reference tracking for the result variable by @SupunS in #2447
• Various improvements by @turbolent in #2451
• Refactor console REPL into type, add type command and command completion by @turbolent in #2450
• Initialize stdlib values of Test contract lazily by @m-Peter in #2403
• Handle wrapped errors during storage iteration by @SupunS in #2488
• Improve code generation for members by @turbolent in #2489
• Improve errors by @turbolent in #2502
• Add tests for test framework blockchain by @SupunS in #2514
• Improve export and encoding by @turbolent in #2517
• Add support for restricted types to Go code generator by @turbolent in #2475

🐞 Bug Fixes

• Check for potential resource loss in reference expression by @turbolent in #2437
• Fix built-in result variable for optional resource typed returns by @SupunS in #2444
• Add validation for exporting references to destroyed resources by @SupunS in #2453
• Fix and test sema to static type conversion by @turbolent in #2465
• Fix race conditions in CCF tests caused by shared usage of types by @turbolent in #2467
• Properly wrap nil in optionals depending on the nested optional type by @turbolent in #2469
• Don't truncate error message stack early in case of multiline errors by @dsainati1 in #2486
• Fix userPanicToError to handle wrapped user error. by @pattyshack in #2498

📖 Documentation

• Remove parameter name from API documentation when argument label is given by @MaxStalker in #2406
• Update crypto doc by @tarakby in #2439
• Improve documentation sidebar by @turbolent in #2456
• Add an Examples section on the Cadence Testing Framework doc by @m-Peter in #2493
• replace docs with links by @nialexsan in #2487

💥 Go API Breaking Chance

• Improve cadence.Path by @turbolent in #2427
• Introduce a CoverageReport field on runtime.Config type by @m-Peter in #2416

Other Changes

• Update dependencies by @turbolent in #2407
• Fix release notes configuration by @turbolent in #2435
• Add integration tests (in Cadence) for Crypto contract and generate code coverage by @m-Peter in #2485
• Improve linting by @turbolent in #2512

New Contributors

• @darkdrag00nv2 made their first contribution in #2414
• @nialexsan made their first contribution in #2487

Full Changelog: v0.38.0...v0.39.0