0.9.0 (June 5, 2023)

There were over one thousand commits since the last release, with the main areas of change including:

• Add Module.names to get the symbols in a module.
• Change iterators on Value to support reduced stack space and enable future garbage collection, removing iterate_collect and with_iterator.
• Improve DAP (debugger) support.
• Improve the performance and fix a few bugs in % string formatting.
• Introduce StarlarkTypeRepr as a trait for things that have a type representation.
• Optimise and increase standards conformance of the Starlark standard library.
• Rework how List/Dict are specified, making their internals private and introducing ListRef/DictRef for pointers to them.
• Add AllocStruct, AllocList and AllocDict as helpers to allocate the various types more efficiently.
• Remove the dedupe Starlark function.
• Integrate with the allocative crate to support the Allocative trait.
• Add more Trace implementations.
• Support type annotations on assignments.
• Make Module.loads also return the FileSpan.
• Add FrozenModule.get_option.
• Add support for integers greater than 32 bits.
• Move to a separate starlark_map crate for SmallMap and optimise it.
• Require the starlark_type! macro.
• Change Module.extra_v to be Value<'v>.
• Expose FrozenHeap from Freezer and GlobalsBuilder.
• Remove Value::new_int.
• In starlark_module functions must be more explicit - return anyhow::Result, have an explicit 'v parameter, explicit heap/eval arguments.
• Add StringValueLike to cover string types that are values.
• Change the json extension method to be json.encode and json.decode.
• Support stable Rust.
• Inline all the relevant pieces of the gazebo library.
• Change all starlark_module annotations to be #[starlark(...)], #[starlark(require = named)] for name-only parameters.
• Many performance optimisations.
• Change the API for profiling and add new profiling features.
• Make the starlark binary spawn the REPL by default.
• Many improvements and API changes to the documentation generation code.
• Many improvements to the LSP code.
• Add a Dialect option to enable types.