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# Description Adds a `profile` command that profiles each pipeline element of a block and can also recursively step into child blocks. # Limitations * It is implemented using pipeline metadata which currently get lost in some circumstances (e.g., https://github.com/nushell/nushell/issues/4501). This means that the profiler will lose data coming from subexpressions. This issue will hopefully be solved in the future. * It also does not step into individual loop iteration which I'm not sure why but maybe that's a good thing. # User-Facing Changes Shouldn't change any existing behavior. # 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` to check that you're using the standard code style - `cargo test --workspace` to check that all tests pass # 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. --------- Co-authored-by: Darren Schroeder <343840+fdncred@users.noreply.github.com> |
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