Struct rustc_session::config::Externs

pub struct Externs(BTreeMap<String, ExternEntry>);

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

impl Externs

pub fn new(data: BTreeMap<String, ExternEntry>) -> Externs

Used for testing.

pub fn get(&self, key: &str) -> Option<&ExternEntry>

pub fn iter(&self) -> BTreeMapIter<'_, String, ExternEntry>

pub fn len(&self) -> usize

Trait Implementations

impl Clone for Externs

fn clone(&self) -> Externs

Returns a copy of the value.

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

Performs copy-assignment from source.

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