Enum cargo::core::features::Edition

pub enum Edition {
    Edition2015,
    Edition2018,
    Edition2021,
}

The edition of the compiler (RFC 2052)

Variants

Edition2015

The 2015 edition

Edition2018

The 2018 edition

Edition2021

The 2021 edition

Implementations

impl Edition

pub const LATEST_UNSTABLE: Option<Edition> = None

The latest edition that is unstable.

This is None if there is no next unstable edition.

pub const LATEST_STABLE: Edition = Edition::Edition2021

The latest stable edition.

pub const CLI_VALUES: &'static [&'static str] = &["2015", "2018", "2021"]

Possible values allowed for the --edition CLI flag.

This requires a static value due to the way clap works, otherwise I would have built this dynamically.

pub fn is_stable(&self) -> bool

Returns true if this edition is stable in this release.

pub fn previous(&self) -> Option<Edition>

Returns the previous edition from this edition.

Returns None for 2015.

pub fn saturating_next(&self) -> Edition

Returns the next edition from this edition, returning the last edition if this is already the last one.

Trait Implementations

impl Clone for Edition

fn clone(&self) -> Edition

Returns a copy 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<'de> Deserialize<'de> for Edition

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error> where
    __D: Deserializer<'de>, 

Deserialize this value from the given Serde deserializer.

impl Display for Edition

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

Formats the value using the given formatter.

impl FromStr for Edition

type Err = Error

The associated error which can be returned from parsing.

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

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, 

Feeds a slice of this type into the given Hasher.

impl Ord for Edition

fn cmp(&self, other: &Edition) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

Restrict a value to a certain interval.

impl PartialEq<Edition> for Edition

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=.

impl PartialOrd<Edition> 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

This method tests less than (for self and other) and is used by the < operator.

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

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

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

This method tests greater than (for self and other) and is used by the > operator.

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

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

impl Serialize for Edition

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error> where
    __S: Serializer, 

Serialize this value into the given Serde serializer.

impl Copy for Edition

impl Eq for Edition

impl StructuralEq for Edition

impl StructuralPartialEq for Edition