pub struct ExpressionId {
private_use_as_methods_instead: u32,
}
Expand description
ID of a coverage-counter expression. Values ascend from 0.
Before MIR inlining, expression IDs are local to their enclosing function. After MIR inlining, coverage statements may have been inlined into another function, so use the statement’s source-scope to find which function/instance its IDs are meaningful for.
Note that LLVM handles expression IDs as uint32_t
, so there is no need
to use a larger representation on the Rust side.
Fields§
§private_use_as_methods_instead: u32
Implementations§
Source§impl ExpressionId
impl ExpressionId
Sourcepub const MAX_AS_U32: u32 = 4_294_967_295u32
pub const MAX_AS_U32: u32 = 4_294_967_295u32
Maximum value the index can take, as a u32
.
Sourcepub const fn from_usize(value: usize) -> Self
pub const fn from_usize(value: usize) -> Self
Sourcepub const unsafe fn from_u32_unchecked(value: u32) -> Self
pub const unsafe fn from_u32_unchecked(value: u32) -> Self
Creates a new index from a given u32
.
§Safety
The provided value must be less than or equal to the maximum value for the newtype. Providing a value outside this range is undefined due to layout restrictions.
Prefer using from_u32
.
Trait Implementations§
Source§impl Add<usize> for ExpressionId
impl Add<usize> for ExpressionId
Source§impl Clone for ExpressionId
impl Clone for ExpressionId
Source§fn clone(&self) -> ExpressionId
fn clone(&self) -> ExpressionId
1.0.0 · Source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read moreSource§impl Debug for ExpressionId
impl Debug for ExpressionId
Source§impl From<ExpressionId> for u32
impl From<ExpressionId> for u32
Source§fn from(v: ExpressionId) -> u32
fn from(v: ExpressionId) -> u32
Source§impl From<ExpressionId> for usize
impl From<ExpressionId> for usize
Source§fn from(v: ExpressionId) -> usize
fn from(v: ExpressionId) -> usize
Source§impl From<u32> for ExpressionId
impl From<u32> for ExpressionId
Source§impl From<usize> for ExpressionId
impl From<usize> for ExpressionId
Source§impl Hash for ExpressionId
impl Hash for ExpressionId
Source§impl<'__ctx> HashStable<StableHashingContext<'__ctx>> for ExpressionId
impl<'__ctx> HashStable<StableHashingContext<'__ctx>> for ExpressionId
fn hash_stable( &self, __hcx: &mut StableHashingContext<'__ctx>, __hasher: &mut StableHasher, )
Source§impl Idx for ExpressionId
impl Idx for ExpressionId
Source§impl Ord for ExpressionId
impl Ord for ExpressionId
Source§fn cmp(&self, other: &ExpressionId) -> Ordering
fn cmp(&self, other: &ExpressionId) -> Ordering
1.21.0 · Source§fn max(self, other: Self) -> Selfwhere
Self: Sized,
fn max(self, other: Self) -> Selfwhere
Self: Sized,
Source§impl PartialEq for ExpressionId
impl PartialEq for ExpressionId
Source§impl PartialOrd for ExpressionId
impl PartialOrd for ExpressionId
Source§impl Step for ExpressionId
impl Step for ExpressionId
Source§fn steps_between(start: &Self, end: &Self) -> Option<usize>
fn steps_between(start: &Self, end: &Self) -> Option<usize>
step_trait
)Source§fn forward_checked(start: Self, u: usize) -> Option<Self>
fn forward_checked(start: Self, u: usize) -> Option<Self>
step_trait
)Source§fn backward_checked(start: Self, u: usize) -> Option<Self>
fn backward_checked(start: Self, u: usize) -> Option<Self>
step_trait
)Source§fn forward(start: Self, count: usize) -> Self
fn forward(start: Self, count: usize) -> Self
step_trait
)Source§unsafe fn forward_unchecked(start: Self, count: usize) -> Self
unsafe fn forward_unchecked(start: Self, count: usize) -> Self
step_trait
)Source§fn backward(start: Self, count: usize) -> Self
fn backward(start: Self, count: usize) -> Self
step_trait
)Source§unsafe fn backward_unchecked(start: Self, count: usize) -> Self
unsafe fn backward_unchecked(start: Self, count: usize) -> Self
step_trait
)Source§impl<'tcx> TypeFoldable<TyCtxt<'tcx>> for ExpressionId
impl<'tcx> TypeFoldable<TyCtxt<'tcx>> for ExpressionId
Source§fn try_fold_with<F: FallibleTypeFolder<TyCtxt<'tcx>>>(
self,
_: &mut F,
) -> Result<Self, F::Error>
fn try_fold_with<F: FallibleTypeFolder<TyCtxt<'tcx>>>( self, _: &mut F, ) -> Result<Self, F::Error>
Source§impl<'tcx> TypeVisitable<TyCtxt<'tcx>> for ExpressionId
impl<'tcx> TypeVisitable<TyCtxt<'tcx>> for ExpressionId
Source§fn visit_with<F: TypeVisitor<TyCtxt<'tcx>>>(&self, _: &mut F) -> F::Result
fn visit_with<F: TypeVisitor<TyCtxt<'tcx>>>(&self, _: &mut F) -> F::Result
impl Copy for ExpressionId
impl Eq for ExpressionId
impl StructuralPartialEq for ExpressionId
Auto Trait Implementations§
impl DynSend for ExpressionId
impl DynSync for ExpressionId
impl Freeze for ExpressionId
impl RefUnwindSafe for ExpressionId
impl Send for ExpressionId
impl Sync for ExpressionId
impl Unpin for ExpressionId
impl UnwindSafe for ExpressionId
Blanket Implementations§
Source§impl<'tcx, T> ArenaAllocatable<'tcx, IsCopy> for Twhere
T: Copy,
impl<'tcx, T> ArenaAllocatable<'tcx, IsCopy> for Twhere
T: Copy,
fn allocate_on(self, arena: &'tcx Arena<'tcx>) -> &'tcx mut T
fn allocate_from_iter( arena: &'tcx Arena<'tcx>, iter: impl IntoIterator<Item = T>, ) -> &'tcx mut [T]
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T: Copy,
impl<'tcx, T> ArenaAllocatable<'tcx, IsCopy> for Twhere
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fn allocate_on(self, arena: &'tcx Arena<'tcx>) -> &'tcx mut T
fn allocate_from_iter( arena: &'tcx Arena<'tcx>, iter: impl IntoIterator<Item = T>, ) -> &'tcx mut [T]
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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
Source§impl<T> CloneToUninit for Twhere
T: Clone,
impl<T> CloneToUninit for Twhere
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Source§unsafe fn clone_to_uninit(&self, dst: *mut T)
unsafe fn clone_to_uninit(&self, dst: *mut T)
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Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...)
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Size: 4 bytes