Enum Edition

pub enum Edition {
    Edition2015,
    Edition2018,
    Edition2021,
    Edition2024,
    EditionFuture,
}

The edition of the compiler. (See RFC 2052.)

Variants

Edition2015

The 2015 edition

Edition2018

The 2018 edition

Edition2021

The 2021 edition

Edition2024

The 2024 edition

EditionFuture

The future edition - this variant will always exist and features associated with this edition can be moved to the next 20XX edition when it is established and it is confirmed that those features will be part of that edition.

This variant allows edition changes to be implemented before being assigned to a concrete edition - primarily when there are two different unstable behaviours that need tested across an edition boundary.

This edition will be permanently unstable and any features associated with this edition must also be behind a feature gate.

Implementations

impl Edition

pub fn lint_name(self) -> &'static str

pub fn is_stable(self) -> bool

pub fn is_rust_2015(self) -> bool

Is this edition 2015?

pub fn at_least_rust_2018(self) -> bool

Are we allowed to use features from the Rust 2018 edition?

pub fn at_least_rust_2021(self) -> bool

Are we allowed to use features from the Rust 2021 edition?

pub fn at_least_rust_2024(self) -> bool

Are we allowed to use features from the Rust 2024 edition?

pub fn at_least_edition_future(self) -> bool

Are we allowed to use features from the future edition?

Trait Implementations

impl Clone for Edition

fn clone(&self) -> Edition

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Edition

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

Formats the value using the given formatter.

impl<__D: SpanDecoder> Decodable<__D> for Edition

fn decode(__decoder: &mut __D) -> Self

impl Display for Edition

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

Formats the value using the given formatter.

impl<__E: SpanEncoder> Encodable<__E> for Edition

fn encode(&self, __encoder: &mut __E)

impl FromStr for Edition

type Err = ()

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Self, ()>

Parses a string s to return a value of this type.

impl Hash for Edition

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl<__CTX> HashStable<__CTX> for Edition

where __CTX: HashStableContext,

fn hash_stable(&self, __hcx: &mut __CTX, __hasher: &mut StableHasher)

impl PartialEq for Edition

fn eq(&self, other: &Edition) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for Edition

fn partial_cmp(&self, other: &Edition) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Copy for Edition

impl Eq for Edition

impl StructuralPartialEq for Edition

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: 1 byte

Size for each variant:

• Edition2015: 0 bytes
• Edition2018: 0 bytes
• Edition2021: 0 bytes
• Edition2024: 0 bytes
• EditionFuture: 0 bytes