nushell/crates
JT 6872d2ac2a
Speed up tight loop benchmarks (#8609)
# Description

This does a few speedups for tight loops:
* Caches the DeclId for `table` so we don't look it up. This means users
can't easily replace the default one, we might want to talk about this
tradeoff. The lookup for finding `table` in a tight loop is currently
pretty heavy. Might be another way to speed this up.
* `table` no longer pre-calculates the width. Instead, it only
calculates the width when printing a table or record.
* Use more efficient way of collecting the block of each loop
* When printing output, only get the config when needed

Combined, this drops the runtime from a million loop tight iteration
from 1sec 8ms to 236ms.

# User-Facing Changes

_(List of all changes that impact the user experience here. This helps
us keep track of breaking changes.)_

# 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

> **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.
2023-03-26 06:12:57 +13:00
..
nu_plugin_custom_values bump to 0.77.2 (#8496) 2023-03-17 21:29:15 +13:00
nu_plugin_example bump to 0.77.2 (#8496) 2023-03-17 21:29:15 +13:00
nu_plugin_formats bump to 0.77.2 (#8496) 2023-03-17 21:29:15 +13:00
nu_plugin_gstat bump to 0.77.2 (#8496) 2023-03-17 21:29:15 +13:00
nu_plugin_inc bump to 0.77.2 (#8496) 2023-03-17 21:29:15 +13:00
nu_plugin_python update nu_plugin_python due to signature changes (#8107) 2023-02-18 13:27:24 +00:00
nu_plugin_query bump to 0.77.2 (#8496) 2023-03-17 21:29:15 +13:00
nu-cli Clean up unnecessary macro use (#8607) 2023-03-25 20:17:20 +13:00
nu-cmd-lang Speed up tight loop benchmarks (#8609) 2023-03-26 06:12:57 +13:00
nu-color-config Clean up unnecessary macro use (#8607) 2023-03-25 20:17:20 +13:00
nu-command Speed up tight loop benchmarks (#8609) 2023-03-26 06:12:57 +13:00
nu-engine Move variables to var stack (#8604) 2023-03-25 12:56:45 +13:00
nu-explore Clean up unnecessary macro use (#8607) 2023-03-25 20:17:20 +13:00
nu-glob bump to 0.77.2 (#8496) 2023-03-17 21:29:15 +13:00
nu-json bump to 0.77.2 (#8496) 2023-03-17 21:29:15 +13:00
nu-parser type-check default values of list annotations (#8600) 2023-03-25 08:57:18 +13:00
nu-path bump to 0.77.2 (#8496) 2023-03-17 21:29:15 +13:00
nu-plugin bump to 0.77.2 (#8496) 2023-03-17 21:29:15 +13:00
nu-pretty-hex bump to 0.77.2 (#8496) 2023-03-17 21:29:15 +13:00
nu-protocol Speed up tight loop benchmarks (#8609) 2023-03-26 06:12:57 +13:00
nu-system bump to 0.77.2 (#8496) 2023-03-17 21:29:15 +13:00
nu-table bump to 0.77.2 (#8496) 2023-03-17 21:29:15 +13:00
nu-term-grid bump to 0.77.2 (#8496) 2023-03-17 21:29:15 +13:00
nu-test-support Remove once_cell dependency from nu-test-support create. (#8568) 2023-03-22 19:36:52 +01:00
nu-utils Add pattern matching (#8590) 2023-03-24 14:52:01 +13:00
README.md Remove old nushell/merge engine-q 2022-02-07 14:54:06 -05:00

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.