| [package] |
| name = "once_cell" |
| version = "1.17.1" |
| authors = ["Aleksey Kladov <aleksey.kladov@gmail.com>"] |
| license = "MIT OR Apache-2.0" |
| edition = "2021" |
| rust-version = "1.56" |
| |
| description = "Single assignment cells and lazy values." |
| readme = "README.md" |
| documentation = "https://docs.rs/once_cell" |
| |
| repository = "https://github.com/matklad/once_cell" |
| keywords = ["lazy", "static"] |
| categories = ["rust-patterns", "memory-management"] |
| |
| exclude = ["*.png", "*.svg", "/Cargo.lock.msrv", "rustfmt.toml"] |
| |
| [workspace] |
| members = ["xtask"] |
| |
| [dependencies] |
| # These optional dependencies are considered private impl details, |
| # only features from `[features]` table are a part of semver-guarded API. |
| parking_lot_core = { version = "0.9.3", optional = true, default_features = false } |
| atomic_polyfill = { package = "atomic-polyfill", version = "1", optional = true } |
| critical_section = { package = "critical-section", version = "1", optional = true } |
| |
| [dev-dependencies] |
| lazy_static = "1.0.0" |
| crossbeam-utils = "0.8.7" |
| regex = "1.2.0" |
| critical_section = { package = "critical-section", version = "1.1.1", features = ["std"] } |
| |
| [features] |
| default = ["std"] |
| |
| # Enables `once_cell::sync` module. |
| std = ["alloc"] |
| |
| # Enables `once_cell::race::OnceBox` type. |
| alloc = ["race"] |
| |
| # Enables `once_cell::race` module. |
| race = [] |
| |
| # Uses parking_lot to implement once_cell::sync::OnceCell. |
| # This makes no speed difference, but makes each OnceCell<T> |
| # up to 16 bytes smaller, depending on the size of the T. |
| parking_lot = ["parking_lot_core"] |
| |
| # Uses `critical-section` to implement `sync` and `race` modules. in |
| # `#![no_std]` mode. Please read `critical-section` docs carefully |
| # before enabling this feature. |
| critical-section = ["critical_section", "atomic_polyfill" ] |
| |
| # Enables semver-exempt APIs of this crate. |
| # At the moment, this feature is unused. |
| unstable = [] |
| |
| # Only for backwards compatibility. |
| atomic-polyfill = ["critical-section"] |
| |
| [[example]] |
| name = "bench" |
| required-features = ["std"] |
| |
| [[example]] |
| name = "bench_acquire" |
| required-features = ["std"] |
| |
| [[example]] |
| name = "bench_vs_lazy_static" |
| required-features = ["std"] |
| |
| [[example]] |
| name = "lazy_static" |
| required-features = ["std"] |
| |
| [[example]] |
| name = "reentrant_init_deadlocks" |
| required-features = ["std"] |
| |
| [[example]] |
| name = "regex" |
| required-features = ["std"] |
| |
| [[example]] |
| name = "test_synchronization" |
| required-features = ["std"] |
| |
| [package.metadata.docs.rs] |
| all-features = true |