[package] name = "once_cell" version = "1.7.2" authors = ["Aleksey Kladov "] license = "MIT OR Apache-2.0" edition = "2018" 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.min", "/.travis.yml", "/run-miri-tests.sh", "rustfmt.toml"] [workspace] members = ["xtask"] [dependencies] # Uses parking_lot to implement once_cell::sync::OnceCell. # This makes not speed difference, but makes each OnceCell # for up to 16 bytes smaller, depending on the size of the T. parking_lot = { version = "0.11", optional = true, default_features = false } [dev-dependencies] lazy_static = "1.0.0" crossbeam-utils = "0.7.2" regex = "1.2.0" [features] default = ["std"] # Enables `once_cell::sync` module. std = ["alloc"] # Enables `once_cell::race::OnceBox` type. alloc = ["race"] # Enables `once_cell::race` module. race = [] # Enables semver-exempt APIs of this crate. # At the moment, this feature is unused. unstable = [] [[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