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# Description First part of SpanID refactoring series. This PR adds a `SpanId` type and a corresponding `span_id` field to `Expression`. Parser creating expressions will now add them to an array in `StateWorkingSet`, generates a corresponding ID and saves the ID to the Expression. The IDs are not used anywhere yet. For the rough overall plan, see https://github.com/nushell/nushell/issues/12963. # User-Facing Changes Hopefully none. This is only a refactor of Nushell's internals that shouldn't have visible side effects. # Tests + Formatting # After Submitting
Nushell core libraries and plugins
These sub-crates form both the foundation for Nu and a set of plugins which extend Nu with additional functionality.
Foundational libraries are split into two kinds of crates:
- Core crates - those crates that work together to build the Nushell language engine
- Support crates - a set of crates that support the engine with additional features like JSON support, ANSI support, and more.
Plugins are likewise also split into two types:
- Core plugins - plugins that provide part of the default experience of Nu, including access to the system properties, processes, and web-connectivity features.
- Extra plugins - these plugins run a wide range of different capabilities like working with different file types, charting, viewing binary data, and more.