Enum cfg_expr::expr::TargetPredicate

pub enum TargetPredicate {
    Arch(Arch),
    Endian(Endian),
    Env(Option<Env>),
    Family(Option<Family>),
    Os(Option<Os>),
    PointerWidth(u8),
    Vendor(Option<Vendor>),
}

All predicates that pertains to a target, except for target_feature

Variants

Arch(Arch)

target_arch

Endian(Endian)

target_endian

Env(Option<Env>)

target_env

Family(Option<Family>)

target_family This also applies to the bare unix and windows predicates.

Os(Option<Os>)

target_os

PointerWidth(u8)

target_pointer_width

Vendor(Option<Vendor>)

target_vendor

Methods

impl TargetPredicate

pub fn matches(self, target: &TargetInfo) -> bool

Returns true of the predicate matches the specified target

use cfg_expr::{targets::*, expr::TargetPredicate as tp};
let win = get_target_by_triple("x86_64-pc-windows-msvc").unwrap();

assert!(
    tp::Arch(Arch::x86_64).matches(win) &&
    tp::Endian(Endian::little).matches(win) &&
    tp::Env(Some(Env::msvc)).matches(win) &&
    tp::Family(Some(Family::windows)).matches(win) &&
    tp::Os(Some(Os::windows)).matches(win) &&
    tp::PointerWidth(64).matches(win) &&
    tp::Vendor(Some(Vendor::pc)).matches(win)
);

Trait Implementations

impl Clone for TargetPredicate

fn clone(&self) -> TargetPredicate

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Copy for TargetPredicate

impl Debug for TargetPredicate

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

Formats the value using the given formatter.

impl PartialEq<TargetPredicate> for TargetPredicate

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

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

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

This method tests for !=.

impl StructuralPartialEq for TargetPredicate