New Feature Branch for TinyGo in fxamacker/cbor

[fxamacker]

Branch feature/cbor-tinygo-beta is now available!

This branch is based on fxamacker/cbor v2.7.0, so it has the latest features, memory improvements, and speedups. New features in v2.7.0 like cbor.MarshalToBuffer(), UserBufferEncMode interface, etc. can further reduce memory use.

It can be compiled using either TinyGo v0.33 or go1.20+. It passed unit tests with both compilers (for linux/amd64).

⚠️ The feature/cbor-tinygo-beta branch does not get fuzz tested yet. The branch is considered beta/experimental when using TinyGo.

When compiled with go1.22, this branch is basically the same as v2.7.0. Build tags were used for changes needed by TinyGo v0.33.

Changes from v2.7.0 main branch

• Default DecOptions.MaxNestedLevels is reduced to 16 (was 32). Users can specify higher limit but ⚠️ 24+ crashes tests when compiled with tinygo v0.33.

• Disabled decoding CBOR tag data to Go interface because tinygo v0.33 is missing needed feature.

• Encoding error message can be different when encoding function type.

Some changes can be reverted after related issues at TinyGo are resolved.