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# Description This PR removes the compile-time overload system. Unfortunately, this system never worked correctly because in a gradual type system where types can be `Any`, you don't have enough information to correctly resolve function calls with overloads. These resolutions must be done at runtime, if they're supported. That said, there's a bit of work that needs to go into resolving input/output types (here overloads do not execute separate commands, but the same command and each overload explains how each output type corresponds to input types). This PR also removes the type scope, which would give incorrect answers in cases where multiple subexpressions were used in a pipeline. # User-Facing Changes Finishes removing compile-time overloads. These were only used in a few places in the code base, but it's possible it may impact user code. I'll mark this as breaking change so we can review. # Tests + Formatting <!-- Don't forget to add tests that cover your changes. Make sure you've run and fixed any issues with these commands: - `cargo fmt --all -- --check` to check standard code formatting (`cargo fmt --all` applies these changes) - `cargo clippy --workspace -- -D warnings -D clippy::unwrap_used -A clippy::needless_collect -A clippy::result_large_err` to check that you're using the standard code style - `cargo test --workspace` to check that all tests pass - `cargo run -- -c "use std testing; testing run-tests --path crates/nu-std"` to run the tests for the standard library > **Note** > from `nushell` you can also use the `toolkit` as follows > ```bash > use toolkit.nu # or use an `env_change` hook to activate it automatically > toolkit check pr > ``` --> # After Submitting <!-- If your PR had any user-facing changes, update [the documentation](https://github.com/nushell/nushell.github.io) after the PR is merged, if necessary. This will help us keep the docs up to date. --> |
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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.