Enum cargo_platform::Platform

pub enum Platform {
    Name(String),
    Cfg(CfgExpr),
}

Platform definition.

Variants

Name(String)

A named platform, like x86_64-apple-darwin.

Cfg(CfgExpr)

A cfg expression, like cfg(windows).

Implementations

impl Platform

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

Returns whether the Platform matches the given target and cfg.

The named target and cfg values should be obtained from rustc.

Examples found in repository

examples/matches.rs (line 29)

fn main() {
    let target = get_target();
    let cfgs = get_cfgs();
    println!("host target={} cfgs:", target);
    for cfg in &cfgs {
        println!("  {}", cfg);
    }
    let mut examples: Vec<&str> = EXAMPLES.iter().copied().collect();
    examples.push(target.as_str());
    for example in examples {
        let p = Platform::from_str(example).unwrap();
        println!("{:?} matches: {:?}", example, p.matches(&target, &cfgs));
    }
}

pub fn check_cfg_attributes(&self, warnings: &mut Vec<String>)

Trait Implementations

impl Clone for Platform

fn clone(&self) -> Platform

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Platform

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Platform

fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>

where D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for Platform

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

Formats the value using the given formatter.

impl FromStr for Platform

type Err = ParseError

The associated error which can be returned from parsing.

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

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

impl Hash for Platform

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 Ord for Platform

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

This method returns an Ordering between self and other.

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

where Self: Sized,

Compares and returns the maximum of two values.

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

where Self: Sized,

Compares and returns the minimum of two values.

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

where Self: Sized + PartialOrd,

Restrict a value to a certain interval.

impl PartialEq for Platform

fn eq(&self, other: &Platform) -> 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 for Platform

fn partial_cmp(&self, other: &Platform) -> 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 Platform

fn serialize<S>(&self, s: S) -> Result<S::Ok, S::Error>

where S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for Platform

impl StructuralPartialEq for Platform