nushell/crates/nu-engine/src
Jakub Žádník 58529aa0b2
Benchmark each pipeline element (#7854)
# 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>
2023-02-11 21:35:48 +00:00
..
call_ext.rs Remove shape-directed import pattern parsing (#7570) 2022-12-22 16:36:13 +02:00
column.rs Add values command (see #7166) (#7583) 2022-12-23 12:49:19 -06:00
documentation.rs Use variable names directly in the format strings (#7906) 2023-01-29 19:37:54 -06:00
env.rs Use variable names directly in the format strings (#7906) 2023-01-29 19:37:54 -06:00
eval.rs Benchmark each pipeline element (#7854) 2023-02-11 21:35:48 +00:00
glob_from.rs Run a round of clippy --fix to fix a ton of lints (#7006) 2022-11-04 15:11:17 -05:00
lib.rs LazyRecord (#7619) 2023-01-18 19:27:26 -08:00
nu_variable.rs Fix $nu path separators on Windows (#7996) 2023-02-07 11:50:39 -08:00
scope.rs make help commands search term don't generate $nothing (#7896) 2023-01-28 18:57:26 -06:00