Struct rustc_session::search_paths::SearchPathFile

source ·

pub struct SearchPathFile {
    pub path: PathBuf,
    pub file_name_str: String,
}

Expand description

The obvious implementation of SearchPath::files is a Vec<PathBuf>. But it is searched repeatedly by find_library_crate, and the searches involve checking the prefix and suffix of the filename of each PathBuf. This is doable, but very slow, because it involves calls to file_name and extension that are themselves slow.

This type augments the PathBuf with an String containing the PathBuf’s filename. The prefix and suffix checking is much faster on the String than the PathBuf. (The filename must be valid UTF-8. If it’s not, the entry should be skipped, because all Rust output files are valid UTF-8, and so a non-UTF-8 filename couldn’t be one we’re looking for.)

Fields§

§path: PathBuf§file_name_str: String

Struct rustc_session::search_paths::SearchPathFile

Fields§

Trait Implementations§

impl Clone for SearchPathFile

fn clone(&self) -> SearchPathFile

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

impl Debug for SearchPathFile

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

Auto Trait Implementations§

impl DynSend for SearchPathFile

impl DynSync for SearchPathFile

impl Freeze for SearchPathFile

impl RefUnwindSafe for SearchPathFile

impl Send for SearchPathFile

impl Sync for SearchPathFile

impl Unpin for SearchPathFile

impl UnwindSafe for SearchPathFile

Blanket Implementations§

impl<T> Aligned for T

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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,

fn collect_and_apply<I, F>(iter: I, f: F) -> R
where I: Iterator<Item = T>, F: FnOnce(&[T]) -> R,

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

impl<T> ToOwned for T
where T: Clone,

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>,

impl<'a, T> Captures<'a> for T
where T: ?Sized,

impl<T> ErasedDestructor for T
where T: 'static,

impl<T> MaybeSendSync for T
where T: Send + Sync,