nushell/crates/nuon
Stefan Holderbach ba6f38510c
Shrink Value by boxing Range/Closure (#12784)
# Description
On 64-bit platforms the current size of `Value` is 56 bytes. The
limiting variants were `Closure` and `Range`. Boxing the two reduces the
size of Value to 48 bytes. This is the minimal size possible with our
current 16-byte `Span` and any 24-byte `Vec` container which we use in
several variants. (Note the extra full 8-bytes necessary for the
discriminant or other smaller values due to the 8-byte alignment of
`usize`)

This is leads to a size reduction of ~15% for `Value` and should overall
be beneficial as both `Range` and `Closure` are rarely used compared to
the primitive types or even our general container types.

# User-Facing Changes
Less memory used, potential runtime benefits.

(Too late in the evening to run the benchmarks myself right now)
2024-05-09 08:10:58 +08:00
..
src Shrink Value by boxing Range/Closure (#12784) 2024-05-09 08:10:58 +08:00
Cargo.toml Bump version to 0.93.1 (#12710) 2024-05-01 17:19:20 -05:00
LICENSE create nuon crate from from nuon and to nuon (#12553) 2024-04-19 13:54:16 +02:00
README.md improve NUON documentation (#12717) 2024-05-05 15:34:22 +02:00

Support for the NUON format.

The NUON format is a superset of JSON designed to fit the feel of Nushell. Some of its extra features are

  • trailing commas are allowed
  • commas are optional in lists
  • quotes are not required around keys or any bare string that do not contain spaces
  • comments are allowed, though not preserved when using [from_nuon]

Example

below is some data in the JSON format

{
    "name": "Some One",
    "birth": "1970-01-01",
    "stats": [
      2544729499973429198,
      687051042647753531,
      6702443901704799912
    ]
}

and an equivalent piece of data written in NUON

{
    name: "Some One",       # the name of the person
    birth: "1970-01-01",    # their date of birth
    stats: [                # some dummy "stats" about them
      2544729499973429198,
      687051042647753531,
      6702443901704799912, # note the trailing comma here...
    ], # and here
} # wait, are these comments in a JSON-like document?!?!