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Fix some mistakes + new doc

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ardi 2024-01-10 18:28:42 +01:00
parent 1bf3aee381
commit ee8510e4e1
1 changed files with 5 additions and 6 deletions
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11
compiler/rustc_index/src/vec.rs
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@ -17,15 +17,13 @@
/// While it's possible to use `u32` or `usize` directly for `I`, /// While it's possible to use `u32` or `usize` directly for `I`,
/// you almost certainly want to use a [`newtype_index!`]-generated type instead. /// you almost certainly want to use a [`newtype_index!`]-generated type instead.
/// ///
/// This allows to index the IndexVec with the new index type /// This allows to index the IndexVec with the new index type.
///
///
/// [`newtype_index!`]: ../macro.newtype_index.html /// [`newtype_index!`]: ../macro.newtype_index.html
#[derive(Clone, PartialEq, Eq, Hash)] #[derive(Clone, PartialEq, Eq, Hash)]
#[repr(transparent)] #[repr(transparent)]
pub struct IndexVec<I: Idx, T> { pub struct IndexVec<I: Idx, T> {
pub raw: Vec<T>, pub raw: Vec<T>,
_marker: PhantomData<I>, _marker: PhantomData<fn(&I)>,
} }
impl<I: Idx, T> IndexVec<I, T> { impl<I: Idx, T> IndexVec<I, T> {
@ -35,7 +33,7 @@ pub const fn new() -> Self {
IndexVec::from_raw(Vec::new()) IndexVec::from_raw(Vec::new())
} }
/// Constructs a new `IndexVec<I, T>` from a `Vec<T>` /// Constructs a new `IndexVec<I, T>` from a `Vec<T>`.
#[inline] #[inline]
pub const fn from_raw(raw: Vec<T>) -> Self { pub const fn from_raw(raw: Vec<T>) -> Self {
IndexVec { raw, _marker: PhantomData } IndexVec { raw, _marker: PhantomData }
@ -65,7 +63,7 @@ pub fn from_elem<S>(elem: T, universe: &IndexSlice<I, S>) -> Self
IndexVec::from_raw(vec![elem; universe.len()]) IndexVec::from_raw(vec![elem; universe.len()])
} }
/// Creates a new IndexVec /// Creates a new IndexVec with n copies of the `elem`.
#[inline] #[inline]
pub fn from_elem_n(elem: T, n: usize) -> Self pub fn from_elem_n(elem: T, n: usize) -> Self
where where
@ -92,6 +90,7 @@ pub fn as_mut_slice(&mut self) -> &mut IndexSlice<I, T> {
IndexSlice::from_raw_mut(&mut self.raw) IndexSlice::from_raw_mut(&mut self.raw)
} }
/// Pushes an element to the array returning the index where it was pushed to.
#[inline] #[inline]
pub fn push(&mut self, d: T) -> I { pub fn push(&mut self, d: T) -> I {
let idx = self.next_index(); let idx = self.next_index();