Generate UniFFI bindings for Go. uniffi-bindgen-go lives
as a separate project from uniffi-go, as per
uniffi-rs #1355. Currently, uniffi-bindgen-go
uses uniffi-rs version 0.25.0.
Minimum Rust version required to install uniffi-bindgen-go is 1.70.
Newer Rust versions should also work fine.
cargo install uniffi-bindgen-go --git https://github.com/NordSecurity/uniffi-bindgen-go --tag v0.2.1+v0.25.0
uniffi-bindgen-go path/to/definitions.udl
Generates bindings file path/to/uniffi/definitions/definitions.go
You will need to make sure the compiled Rust binaries are in your LD_LIBRARY_PATH (set this to target/release/ if you have built with the --release flag, for instance).
You can also create a script to properly link these bindings - see test_bindings.sh in the root of this repository for an example.
To integrate the bindings into your projects, simply add the generated bindings file to your project. Generated bindings require Go 1.19 or later to compile.
It's possible to configure some settings by passing --config argument to
the generator
uniffi-bindgen-go path/to/definitions.udl --config path/to/uniffi.tomluniffi-bindgen-go is versioned separately from uniffi-rs. UniFFI follows the SemVer rules from
the Cargo Book
which states "Versions are considered compatible if their left-most non-zero
major/minor/patch component is the same". A breaking change is any modification to the Go bindings
that demands the consumer of the bindings to make corresponding changes to their code to ensure that
the bindings continue to function properly. uniffi-bindgen-go is young, and its unclear how stable
the generated bindings are going to be between versions. For this reason, major version is currently
0, and most changes are probably going to bump minor version.
To ensure consistent feature set across external binding generators, uniffi-bindgen-go targets
a specific uniffi-rs version. A consumer using Go bindings (in uniffi-bindgen-go) and Go
bindings (in uniffi-bindgen-go) expects the same features to be available across multiple bindings
generators. This means that the consumer should choose external binding generator versions such that
each generator targets the same uniffi-rs version.
To simplify this choice uniffi-bindgen-cs and uniffi-bindgen-go use tag naming convention
as follows: vX.Y.Z+vA.B.C, where X.Y.Z is the version of the generator itself, and A.B.C is
the version of uniffi-rs it is based on.
The table shows uniffi-rs version history for tags that were published before tag naming convention described above was introduced.
| uniffi-bindgen-go version | uniffi-rs version |
|---|---|
| v0.2.0 | v0.25.0 |
| v0.1.0 | v0.23.0 |
More documentation is available in docs directory.
For contribution guidelines, read CONTRIBUTING.md.