[−][src]Struct rustc_mir::borrow_check::location::LocationTable
Maps between a MIR Location, which identifies a particular
statement within a basic block, to a "rich location", which
identifies at a finer granularity. In particular, we distinguish
the start of a statement and the mid-point. The mid-point is
the point just before the statement takes effect; in particular,
for an assignment A = B
, it is the point where B is about to be
written into A. This mid-point is a kind of hack to work around
our inability to track the position information at sufficient
granularity through outlives relations; however, the rich location
table serves another purpose: it compresses locations from
multiple words into a single u32.
Fields
num_points: usize
statements_before_block: IndexVec<BasicBlock, usize>
Implementations
impl LocationTable
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pub(crate) fn new(body: &Body<'_>) -> Self
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pub(crate) fn all_points(&self) -> impl Iterator<Item = LocationIndex>
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pub(crate) fn start_index(&self, location: Location) -> LocationIndex
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pub(crate) fn mid_index(&self, location: Location) -> LocationIndex
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pub(crate) fn to_location(&self, index: LocationIndex) -> RichLocation
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Auto Trait Implementations
impl RefUnwindSafe for LocationTable
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impl Send for LocationTable
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impl Sync for LocationTable
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impl Unpin for LocationTable
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impl UnwindSafe for LocationTable
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Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
pub fn borrow_mut(&mut self) -> &mut T
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impl<T> From<T> for T
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error
The type returned in the event of a conversion error.