cargo::util::rustc

Struct Cache

struct Cache {
    cache_location: Option<PathBuf>,
    dirty: bool,
    data: CacheData,
}

Expand description

It is a well known fact that rustc is not the fastest compiler in the world. What is less known is that even rustc --version --verbose takes about a hundred milliseconds! Because we need compiler version info even for no-op builds, we cache it here, based on compiler’s mtime and rustup’s current toolchain.

https://github.com/rust-lang/cargo/issues/5315 https://github.com/rust-lang/rust/issues/49761

Fields§

§cache_location: Option<PathBuf>§dirty: bool§data: CacheData

Struct CacheCopy item path

Fields§

Implementations§

impl Cache

fn load( wrapper: Option<&Path>, workspace_wrapper: Option<&Path>, rustc: &Path, rustup_rustc: &Path, cache_location: Option<PathBuf>, gctx: &GlobalContext, ) -> Cache

fn cached_output( &mut self, cmd: &ProcessBuilder, extra_fingerprint: u64, ) -> CargoResult<(String, String)>

Trait Implementations§

impl Debug for Cache

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

impl Drop for Cache

fn drop(&mut self)

Auto Trait Implementations§

impl Freeze for Cache

impl RefUnwindSafe for Cache

impl Send for Cache

impl Sync for Cache

impl Unpin for Cache

impl UnwindSafe for Cache

Blanket Implementations§

impl<T> Any for Twhere T: 'static + ?Sized,

fn type_id(&self) -> TypeId

impl<T> Borrow<T> for Twhere T: ?Sized,

fn borrow(&self) -> &T

impl<T> BorrowMut<T> for Twhere T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

impl<T> From<T> for T

fn from(t: T) -> T

impl<T> Instrument for T

fn instrument(self, span: Span) -> Instrumented<Self>

fn in_current_span(self) -> Instrumented<Self>

impl<T, U> Into<U> for Twhere U: From<T>,

fn into(self) -> U

impl<T> Pointable for T

const ALIGN: usize

type Init = T

unsafe fn init(init: <T as Pointable>::Init) -> usize

unsafe fn deref<'a>(ptr: usize) -> &'a T

unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

unsafe fn drop(ptr: usize)

impl<T> Same for T

type Output = T

impl<T, U> TryFrom<U> for Twhere U: Into<T>,

type Error = Infallible

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

impl<V, T> VZip<V> for Twhere V: MultiLane<T>,

fn vzip(self) -> V

impl<T> WithSubscriber for T

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>where S: Into<Dispatch>,

fn with_current_subscriber(self) -> WithDispatch<Self>

Layout§

Struct Cache

impl<T> Any for T
where T: 'static + ?Sized,

impl<T> Borrow<T> for T
where T: ?Sized,

impl<T> BorrowMut<T> for T
where T: ?Sized,

impl<T, U> Into<U> for T
where U: From<T>,

impl<T, U> TryFrom<U> for T
where U: Into<T>,

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

impl<V, T> VZip<V> for T
where V: MultiLane<T>,

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,