Commit Graph

14 Commits

Author SHA1 Message Date
Darren Schroeder
989a14709c
optimize aarch64 when able (#10433)
# Description

This PR optimizes for the aarch64 m1 processor when able.

# User-Facing Changes
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# Tests + Formatting
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2023-09-21 03:57:07 +12:00
Darren Schroeder
ef32e1ce1a
reset stack size to 10mb vs 2gb (#7103) 2022-11-11 15:22:26 -06:00
JT
13515c5eb0
Limited mutable variables (#7089)
This adds support for (limited) mutable variables. Mutable variables are created with mut much the same way immutable variables are made with let.

Mutable variables allow mutation via the assignment operator (=).

❯ mut x = 100
❯ $x = 200
❯ print $x
200

Mutable variables are limited in that they're only tended to be used in the local code block. Trying to capture a local variable will result in an error:

❯ mut x = 123; {|| $x }
Error: nu::parser::expected_keyword (link)

  × Capture of mutable variable.

The intent of this limitation is to reduce some of the issues with mutable variables in general: namely they make code that's harder to reason about. By reducing the scope that a mutable variable can be used it, we can help create local reasoning about them.

Mutation can occur with fields as well, as in this case:

❯ mut y = {abc: 123}
❯ $y.abc = 456
❯ $y

On a historical note: mutable variables are something that we resisted for quite a long time, leaning as much as we could on the functional style of pipelines and dataflow. That said, we've watched folks struggle to work with reduce as an approximation for patterns that would be trivial to express with local mutation. With that in mind, we're leaning towards the happy path.
2022-11-11 19:51:08 +13:00
Darren Schroeder
f1118020a1
add commented out mold linker usage (#7081) 2022-11-10 08:41:06 -06:00
Reilly Wood
17a5aa3052
Statically link the CRT on Windows (#5717) 2022-06-05 17:01:01 -07:00
Darren Schroeder
352cf31db2
update comments, add other targets (#4891)
keep these other targets in case we need them in the future
2022-03-22 08:27:48 -05:00
Darren Schroeder
75f8247af1
added .cargo/config.toml to build with bigger stack on windows (#2594)
* added .cargo/config.toml to build with bigger stack on windows

* updated comments
2020-09-24 15:55:33 +12:00
Andrés N. Robalino
028fc9b9cd
Data summarize reporting overhaul. (#2299)
Refactored out most of internal work for summarizing data opening
the door for generating charts from it. A model is introduced
to hold information needed for a summary, Histogram command is
an example of a partial usage. This is the beginning.

Removed implicit arithmetic traits on Value and Primitive to avoid
mixed types panics. The std operations traits can't fail and we
can't guarantee that. We can handle gracefully now since compute_values
was introduced after the parser changes four months ago. The handling
logic should be taken care of either explicitly or in compute_values.

The zero identity trait was also removed (and implementing this forced
us to also implement Add, Mult, etc)

Also: the `math` operations now remove in the output if a given column is not computable:

```
> ls | math sum
──────┬──────────
 size │ 150.9 KB
──────┴──────────
```
2020-08-03 17:47:19 -05:00
Andrés N. Robalino
b4761f9d8a
Remove commands meant for internal use. (#2182) 2020-07-14 21:49:46 -05:00
Andrés N. Robalino
b36d21e76f
Infer types from regular delimited plain text unstructured files. (#1494)
* Infer types from regular delimited plain text unstructured files.

* Nothing resolves to an empty string.
2020-03-16 15:50:45 -05:00
Yehuda Katz
3008434c0f Eliminate repetitive code and fix Unix failure 2019-11-25 11:09:59 -08:00
Andrés N. Robalino
f4d9975dab Clean up feature build flags. 2019-11-22 03:11:36 -05:00
Yehuda Katz
4be88ff572 Modernize external parse and improve trace
The original purpose of this PR was to modernize the external parser to
use the new Shape system.

This commit does include some of that change, but a more important
aspect of this change is an improvement to the expansion trace.

Previous commit 6a7c00ea adding trace infrastructure to the syntax coloring
feature. This commit adds tracing to the expander.

The bulk of that work, in addition to the tree builder logic, was an
overhaul of the formatter traits to make them more general purpose, and
more structured.

Some highlights:

- `ToDebug` was split into two traits (`ToDebug` and `DebugFormat`)
  because implementations needed to become objects, but a convenience
  method on `ToDebug` didn't qualify
- `DebugFormat`'s `fmt_debug` method now takes a `DebugFormatter` rather
  than a standard formatter, and `DebugFormatter` has a new (but still
  limited) facility for structured formatting.
- Implementations of `ExpandSyntax` need to produce output that
  implements `DebugFormat`.

Unlike the highlighter changes, these changes are fairly focused in the
trace output, so these changes aren't behind a flag.
2019-11-01 08:45:45 -07:00
Yehuda Katz
b74daa2e60 A real parser (lalrpop) 2019-05-26 00:17:35 -07:00