pub struct FileId(/* private fields */);Expand description
Stable numeric identity for a source file within one analysis session.
Assigned when the file is first registered; never reused within that session.
Small, Copy, and cheap to hash — used as HashMap keys in hot-path structures
(cache entries, reverse-dep graph) instead of heap-allocated path strings.
Trait Implementations§
impl Copy for FileId
impl Eq for FileId
Source§impl Ord for FileId
impl Ord for FileId
1.21.0 (const: unstable) · Source§fn max(self, other: Self) -> Selfwhere
Self: Sized,
fn max(self, other: Self) -> Selfwhere
Self: Sized,
Compares and returns the maximum of two values. Read more
Source§impl PartialOrd for FileId
impl PartialOrd for FileId
impl StructuralPartialEq for FileId
Auto Trait Implementations§
impl Freeze for FileId
impl RefUnwindSafe for FileId
impl Send for FileId
impl Sync for FileId
impl Unpin for FileId
impl UnsafeUnpin for FileId
impl UnwindSafe for FileId
Blanket Implementations§
Source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
Source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
Source§impl<T> CloneToUninit for Twhere
T: Clone,
impl<T> CloneToUninit for Twhere
T: Clone,
Source§impl<Q, K> Comparable<K> for Q
impl<Q, K> Comparable<K> for Q
Source§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
Source§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
Source§fn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
Compare self to
key and return true if they are equal.