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# Description Allow NU_LIBS_DIR and friends to be const they can be updated within the same parse pass. This will allow us to remove having multiple config files eventually. Small implementation detail: I've changed `call.parser_info` to a hashmap with string keys, so the information can have names rather than indices, and we don't have to worry too much about the order in which we put things into it. Closes https://github.com/nushell/nushell/issues/8422 # User-Facing Changes In a single file, users can now do stuff like ``` const NU_LIBS_DIR = ['/some/path/here'] source script.nu ``` and the source statement will use the value of NU_LIBS_DIR declared the line before. Currently, if there is no `NU_LIBS_DIR` const, then we fallback to using the value of the `NU_LIBS_DIR` env-var, so there are no breaking changes (unless someone named a const NU_LIBS_DIR for some reason).  # Tests + Formatting ~~TODO: write tests~~ Done # After Submitting ~~TODO: update docs~~ Will do when we update default_env.nu/merge default_env.nu into default_config.nu. |
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nu-protocol
The nu-protocol crate holds the definitions of structs/traits that are used throughout Nushell. This gives us one way to expose them to many other crates, as well as make these definitions available to each other, without causing mutually recursive dependencies.