Place

Struct Place

pub struct Place {
    pub base: PlaceBase,
    pub proj_start: u32,
    pub proj_len: u32,
}

Expand description

A memory location that can be read from or written to.

A place represents a path to a memory location, consisting of a base (local variable or parameter) and zero or more projections (field access, array indexing).

§Examples

x → Place { base: Local(0), proj_start: 0, proj_len: 0 }
arr[i] → Place { base: Local(0), proj_start: 0, proj_len: 1 } with Index projection
point.x → Place { base: Local(0), proj_start: 0, proj_len: 1 } with Field projection
arr[i].x → Place { base: Local(0), proj_start: 0, proj_len: 2 } with Index then Field

Fields§

§base: PlaceBase

The base of the place - either a local slot or parameter slot

§proj_start: u32

Start index into Cfg’s projections array

§proj_len: u32

Number of projections

Implementations§

impl Place

pub const fn local(slot: u32) -> Self

Create a place for a local variable with no projections.

pub const fn param(slot: u32) -> Self

Create a place for a parameter with no projections.

pub const fn is_simple(&self) -> bool

Returns true if this place has no projections (is just a variable).

pub const fn as_local(&self) -> Option<u32>

Returns the local slot if this is a simple local place with no projections.

pub const fn as_param(&self) -> Option<u32>

Returns the param slot if this is a simple param place with no projections.

Trait Implementations§

impl Clone for Place

fn clone(&self) -> Place

Returns a duplicate of the value. Read more

1.0.0 · Source§

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

Performs copy-assignment from source. Read more

impl Debug for Place

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

impl Display for Place

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

impl PartialEq for Place

fn eq(&self, other: &Place) -> bool

Tests for self and other values to be equal, and is used by ==.

1.0.0 · Source§

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for Place

impl Eq for Place

impl StructuralPartialEq for Place

Auto Trait Implementations§

impl Freeze for Place

impl RefUnwindSafe for Place

impl Send for Place

impl Sync for Place

impl Unpin for Place

impl UnwindSafe for Place

Blanket Implementations§

impl<T> Any for T
where T: 'static + ?Sized,

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T
where T: ?Sized,

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T
where T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

impl<T> CloneToUninit for T
where T: Clone,

unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)

Performs copy-assignment from self to dest. Read more

impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

fn equivalent(&self, key: &K) -> bool

Checks if this value is equivalent to the given key. Read more

impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

fn equivalent(&self, key: &K) -> bool

Compare self to key and return true if they are equal.

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

impl<T> Instrument for T

fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided [Span], returning an Instrumented wrapper. Read more

fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

impl<T, U> Into<U> for T
where U: From<T>,

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

impl<'src, T> IntoMaybe<'src, T> for T
where T: 'src,

type Proj<U: 'src> = U

fn map_maybe<R>( self, _f: impl FnOnce(&'src T) -> &'src R, g: impl FnOnce(T) -> R, ) -> <T as IntoMaybe<'src, T>>::Proj<R>
where R: 'src,

impl<'p, T> Seq<'p, T> for T
where T: Clone,

type Item<'a> = &'a T where T: 'a

The item yielded by the iterator.

type Iter<'a> = Once<&'a T> where T: 'a

An iterator over the items within this container, by reference.

fn seq_iter(&self) -> <T as Seq<'p, T>>::Iter<'_>

Iterate over the elements of the container.

fn contains(&self, val: &T) -> bool
where T: PartialEq,

Check whether an item is contained within this sequence.

fn to_maybe_ref<'b>(item: <T as Seq<'p, T>>::Item<'b>) -> Maybe<T, &'p T>
where 'p: 'b,

Convert an item of the sequence into a [MaybeRef].

impl<T> ToOwned for T
where T: Clone,

type Owned = T

The resulting type after obtaining ownership.

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more

impl<T> ToString for T
where T: Display + ?Sized,

fn to_string(&self) -> String

Converts the given value to a String. Read more

impl<T, U> TryFrom<U> for T
where U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.

impl<T> WithSubscriber for T

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a [WithDispatch] wrapper. Read more

fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a [WithDispatch] wrapper. Read more

impl<T> OrderedSeq<'_, T> for T
where T: Clone,