Struct rustc_session::config::Externs
source · [−]pub struct Externs(BTreeMap<String, ExternEntry>);Expand description
Use tree-based collections to cheaply get a deterministic Hash implementation.
Do not switch BTreeMap or BTreeSet out for an unsorted container type! That
would break dependency tracking for command-line arguments.
Tuple Fields
0: BTreeMap<String, ExternEntry>Implementations
sourceimpl Externs
impl Externs
pub fn get(&self, key: &str) -> Option<&ExternEntry>
pub fn iter(&self) -> BTreeMapIter<'_, String, ExternEntry>
pub fn len(&self) -> usize
Trait Implementations
Auto Trait Implementations
impl RefUnwindSafe for Externs
impl Send for Externs
impl Sync for Externs
impl Unpin for Externs
impl UnwindSafe for Externs
Blanket Implementations
sourceimpl<T> BorrowMut<T> for T where
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
const: unstable · sourcepub fn borrow_mut(&mut self) -> &mut T
pub fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
sourceimpl<T> ToOwned for T where
T: Clone,
impl<T> ToOwned for T where
T: Clone,
type Owned = T
type Owned = T
The resulting type after obtaining ownership.
sourcepub fn to_owned(&self) -> T
pub fn to_owned(&self) -> T
Creates owned data from borrowed data, usually by cloning. Read more
sourcepub fn clone_into(&self, target: &mut T)
pub fn clone_into(&self, target: &mut T)
🔬 This is a nightly-only experimental API. (
toowned_clone_into)Uses borrowed data to replace owned data, usually by cloning. Read more
Layout
Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference’s “Type Layout” chapter for details on type layout guarantees.
Size: 24 bytes