Struct Feature

pub struct Feature {
    name: &'static str,
    stability: Status,
    version: &'static str,
    docs: &'static str,
    get: fn(_: &Features) -> bool,
}

Status and metadata for a single unstable feature.

Fields

name: &'static str

Feature name. This is valid Rust identifier so no dash only underscore.

stability: Status

version: &'static str

Version that this feature was stabilized or removed.

docs: &'static str

Link to the unstable documentation.

get: fn(_: &Features) -> bool

Implementations

impl Feature

pub const fn test_dummy_stable() -> &'static Feature

A dummy feature that doesn’t actually gate anything, but it’s used in testing to ensure that we can enable stable features.

See https://doc.rust-lang.org/nightly/cargo/.

pub const fn test_dummy_unstable() -> &'static Feature

A dummy feature that gates the usage of the im-a-teapot manifest entry. This is basically just intended for tests.

See https://doc.rust-lang.org/nightly/cargo/reference/unstable.html.

pub const fn alternative_registries() -> &'static Feature

Downloading packages from alternative registry indexes.

See https://doc.rust-lang.org/nightly/cargo/reference/registries.html.

pub const fn edition() -> &'static Feature

Using editions

See https://doc.rust-lang.org/nightly/cargo/reference/manifest.html#the-edition-field.

pub const fn rename_dependency() -> &'static Feature

Renaming a package in the manifest via the package key.

See https://doc.rust-lang.org/nightly/cargo/reference/specifying-dependencies.html#renaming-dependencies-in-cargotoml.

pub const fn publish_lockfile() -> &'static Feature

Whether a lock file is published with this crate.

See https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#publish-lockfile.

pub const fn profile_overrides() -> &'static Feature

Overriding profiles for dependencies.

See https://doc.rust-lang.org/nightly/cargo/reference/profiles.html#overrides.

pub const fn default_run() -> &'static Feature

“default-run” manifest option.

See https://doc.rust-lang.org/nightly/cargo/reference/manifest.html#the-default-run-field.

pub const fn metabuild() -> &'static Feature

Declarative build scripts.

See https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#metabuild.

pub const fn public_dependency() -> &'static Feature

Specifying the ‘public’ attribute on dependencies.

See https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#public-dependency.

pub const fn named_profiles() -> &'static Feature

Allow to specify profiles other than ‘dev’, ‘release’, ‘test’, etc.

See https://doc.rust-lang.org/nightly/cargo/reference/profiles.html#custom-profiles.

pub const fn resolver() -> &'static Feature

Opt-in new-resolver behavior.

See https://doc.rust-lang.org/nightly/cargo/reference/resolver.html#resolver-versions.

pub const fn strip() -> &'static Feature

Allow to specify whether binaries should be stripped.

See https://doc.rust-lang.org/nightly/cargo/reference/profiles.html#strip-option.

pub const fn rust_version() -> &'static Feature

Specifying a minimal ‘rust-version’ attribute for crates.

See https://doc.rust-lang.org/nightly/cargo/reference/manifest.html#the-rust-version-field.

pub const fn edition2021() -> &'static Feature

Support for 2021 edition.

See https://doc.rust-lang.org/nightly/cargo/reference/manifest.html#the-edition-field.

pub const fn per_package_target() -> &'static Feature

Allow to specify per-package targets (compile kinds).

See https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#per-package-target.

pub const fn codegen_backend() -> &'static Feature

Allow to specify which codegen backend should be used.

See https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#codegen-backend.

pub const fn different_binary_name() -> &'static Feature

Allow specifying different binary name apart from the crate name.

See https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#different-binary-name.

pub const fn profile_rustflags() -> &'static Feature

Allow specifying rustflags directly in a profile.

See https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#profile-rustflags-option.

pub const fn workspace_inheritance() -> &'static Feature

Allow workspace members to inherit fields and dependencies from a workspace.

See https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#workspace-inheritance.

pub const fn edition2024() -> &'static Feature

Support for 2024 edition.

See https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#edition-2024.

pub const fn trim_paths() -> &'static Feature

Allow setting trim-paths in a profile to control the sanitisation of file paths in build outputs.

See https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#profile-trim-paths-option.

pub const fn open_namespaces() -> &'static Feature

Allow multiple packages to participate in the same API namespace

See https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#open-namespaces.

pub const fn path_bases() -> &'static Feature

Allow paths that resolve relatively to a base specified in the config.

See https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#path-bases.

fn is_enabled(&self, features: &Features) -> bool

Whether this feature is allowed to use in the given Features context.

pub(crate) fn name(&self) -> &str

Trait Implementations

impl Debug for Feature

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 64 bytes