# Description
This PR creates a new `Record` type to reduce duplicate code and
possibly bugs as well. (This is an edited version of #9648.)
- `Record` implements `FromIterator` and `IntoIterator` and so can be
iterated over or collected into. For example, this helps with
conversions to and from (hash)maps. (Also, no more
`cols.iter().zip(vals)`!)
- `Record` has a `push(col, val)` function to help insure that the
number of columns is equal to the number of values. I caught a few
potential bugs thanks to this (e.g. in the `ls` command).
- Finally, this PR also adds a `record!` macro that helps simplify
record creation. It is used like so:
```rust
record! {
"key1" => some_value,
"key2" => Value::string("text", span),
"key3" => Value::int(optional_int.unwrap_or(0), span),
"key4" => Value::bool(config.setting, span),
}
```
Since macros hinder formatting, etc., the right hand side values should
be relatively short and sweet like the examples above.
Where possible, prefer `record!` or `.collect()` on an iterator instead
of multiple `Record::push`s, since the first two automatically set the
record capacity and do less work overall.
# User-Facing Changes
Besides the changes in `nu-protocol` the only other breaking changes are
to `nu-table::{ExpandedTable::build_map, JustTable::kv_table}`.
a recent addition must have removed the `create_default_context` command
from `nu_command`, which breaks the benchmarks 😮
## before this PR
```bash
cargo check --all-targets --workspace
```
gives a bunch of
```bash
error[E0425]: cannot find function `create_default_context` in crate `nu_command`
--> benches/benchmarks.rs:93:48
|
93 | let mut engine_state = nu_command::create_default_context();
| ^^^^^^^^^^^^^^^^^^^^^^ not found in `nu_command`
|
help: consider importing this function
|
1 | use nu_cmd_lang::create_default_context;
|
help: if you import `create_default_context`, refer to it directly
|
93 - let mut engine_state = nu_command::create_default_context();
93 + let mut engine_state = create_default_context();
|
```
and `cargo bench` does not run...
## with this PR
```bash
cargo check --all-targets --workspace
```
is not happy and the benchmarks run again with `cargo bench`
---------
Co-authored-by: sholderbach <sholderbach@users.noreply.github.com>
# Description
This improves the operation mismatch error in a few ways:
* We now detect if the left-hand side of the operation is at fault, and
show a simpler error/error message if it is
* Removed the unhelpful hint
* Updated the error text to make it clear what types are causing the
issue
# User-Facing Changes
Error texts and spans will change
# 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
- `cargo run -- crates/nu-utils/standard_library/tests.nu` 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.
# Description
Broken after #7415
We currently don't try to build the benchmarks in the CI thus this
slipped through the cracks.
# User-Facing Changes
None
# Tests + Formatting
Compile check is currently missing, but working towards that
I've been using the new Criterion benchmarks and I noticed that they
take a _long_ time to build before the benchmark can run. Turns out
`cargo build` was building 3 separate benchmarking binaries with most of
Nu's functionality in each one.
As a simple temporary fix, I've moved all the benchmarks into a single
file so that we only build 1 binary.
### Future work
Would be nice to split the unrelated benchmarks out into modules, but
when I did that a separate binary still got built for each one. I
suspect Criterion's macros are doing something funny with module or file
names. I've left a FIXME in the code to investigate this further.
A quick follow-up to https://github.com/nushell/nushell/pull/7686. This
adds benchmarks for evaluating `default_env.nu` and `default_config.nu`,
because evaluating config takes up the lion's share of Nushell's startup
time. The benchmarks will help us speed up Nu's startup and test
execution.
```
eval default_env.nu time: [4.2417 ms 4.2596 ms 4.2780 ms]
...
eval default_config.nu time: [1.9362 ms 1.9439 ms 1.9523 ms]
```
This PR sets up [Criterion](https://github.com/bheisler/criterion.rs)
for benchmarking in the main `nu` crate, and adds some simple parser
benchmarks.
To run the benchmarks, just do `cargo bench` or `cargo bench -- <regex
matching benchmark names>` in the repo root:
```bash
〉cargo bench -- parse
...
Running benches/parser_benchmark.rs (target/release/deps/parser_benchmark-75d224bac82d5b0b)
parse_default_env_file time: [221.17 µs 222.34 µs 223.61 µs]
Found 8 outliers among 100 measurements (8.00%)
5 (5.00%) high mild
3 (3.00%) high severe
parse_default_config_file
time: [1.4935 ms 1.4993 ms 1.5059 ms]
Found 11 outliers among 100 measurements (11.00%)
7 (7.00%) high mild
4 (4.00%) high severe
```
Existing benchmarks from `nu-plugin` have been moved into the main `nu`
crate to keep all our benchmarks in one place.
