Enum cargo_platform::CfgExpr

pub enum CfgExpr {
    Not(Box<CfgExpr>),
    All(Vec<CfgExpr>),
    Any(Vec<CfgExpr>),
    Value(Cfg),
}

A cfg expression.

Variants

Not(Box<CfgExpr>)

All(Vec<CfgExpr>)

Any(Vec<CfgExpr>)

Value(Cfg)

Implementations

impl CfgExpr

pub fn matches_key(key: &str, target_cfg: &[Cfg]) -> bool

Utility function to check if the key, “cfg(..)” matches the target_cfg

pub fn matches(&self, cfg: &[Cfg]) -> bool

Trait Implementations

impl Clone for CfgExpr

fn clone(&self) -> CfgExpr

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for CfgExpr

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

Formats the value using the given formatter.

impl Display for CfgExpr

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

Formats the value using the given formatter.

impl FromStr for CfgExpr

type Err = ParseError

The associated error which can be returned from parsing.

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

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

impl Hash for CfgExpr

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 CfgExpr

fn cmp(&self, other: &CfgExpr) -> 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) -> Selfwhere
    Self: PartialOrd<Self>,

Restrict a value to a certain interval.

impl PartialEq<CfgExpr> for CfgExpr

fn eq(&self, other: &CfgExpr) -> 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 !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd<CfgExpr> for CfgExpr

fn partial_cmp(&self, other: &CfgExpr) -> 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 Eq for CfgExpr

impl StructuralEq for CfgExpr

impl StructuralPartialEq for CfgExpr