Replace `once_cell` with `std::sync::OnceLock`/`core::cell::OnceCell` by youknowone · Pull Request #7077 · RustPython/RustPython

youknowone

- Replace `once_cell::sync::{Lazy, OnceCell}` with
  `std::sync::{LazyLock, OnceLock}`
- Replace `once_cell::unsync::{Lazy, OnceCell}` with
  `core::cell::{LazyCell, OnceCell}`
- Inline `get_or_try_init` at call sites (unstable in std as of 1.93)
- Replace `OnceCell::with_value()` with `OnceCell::from()` in codecs.rs
- Remove `once_cell` direct dependency from common and vm crates

marked this pull request as ready for review

February 11, 2026 01:58

youknowone added a commit to youknowone/RustPython that referenced this pull request

Mar 22, 2026

…RustPython#7077)

* Replace `once_cell` with `std::sync::OnceLock`/`core::cell::OnceCell`

- Replace `once_cell::sync::{Lazy, OnceCell}` with
  `std::sync::{LazyLock, OnceLock}`
- Replace `once_cell::unsync::{Lazy, OnceCell}` with
  `core::cell::{LazyCell, OnceCell}`
- Inline `get_or_try_init` at call sites (unstable in std as of 1.93)
- Replace `OnceCell::with_value()` with `OnceCell::from()` in codecs.rs
- Remove `once_cell` direct dependency from common and vm crates

* Auto-format: cargo fmt --all

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