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2ae9ad8676
# Description This adds a `SharedCow` type as a transparent copy-on-write pointer that clones to unique on mutate. As an initial test, the `Record` within `Value::Record` is shared. There are some pretty big wins for performance. I'll post benchmark results in a comment. The biggest winner is nested access, as that would have cloned the records for each cell path follow before and it doesn't have to anymore. The reusability of the `SharedCow` type is nice and I think it could be used to clean up the previous work I did with `Arc` in `EngineState`. It's meant to be a mostly transparent clone-on-write that just clones on `.to_mut()` or `.into_owned()` if there are actually multiple references, but avoids cloning if the reference is unique. # User-Facing Changes - `Value::Record` field is a different type (plugin authors) # Tests + Formatting - 🟢 `toolkit fmt` - 🟢 `toolkit clippy` - 🟢 `toolkit test` - 🟢 `toolkit test stdlib` # After Submitting - [ ] use for `EngineState` - [ ] use for `Value::List`
32 lines
863 B
TOML
32 lines
863 B
TOML
[package]
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authors = ["The Nushell Project Developers"]
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description = "Nushell utility functions"
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edition = "2021"
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license = "MIT"
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name = "nu-utils"
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repository = "https://github.com/nushell/nushell/tree/main/crates/nu-utils"
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version = "0.92.3"
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# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
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[[bin]]
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name = "utils"
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path = "src/main.rs"
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bench = false
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[lib]
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bench = false
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[dependencies]
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lscolors = { workspace = true, default-features = false, features = ["nu-ansi-term"] }
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log = { workspace = true }
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num-format = { workspace = true }
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strip-ansi-escapes = { workspace = true }
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serde = { workspace = true }
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sys-locale = "0.3"
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unicase = "2.7.0"
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[target.'cfg(windows)'.dependencies]
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crossterm_winapi = "0.9"
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[target.'cfg(unix)'.dependencies]
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nix = { workspace = true, default-features = false, features = ["user"] } |