Struct rustc_middle::ty::RvalueScopes
source · pub struct RvalueScopes {
map: FxHashMap<ItemLocalId, Option<Scope>>,
}Expand description
RvalueScopes is a mapping from sub-expressions to extended lifetime as determined by
rules laid out in rustc_hir_analysis::check::rvalue_scopes.
Fields§
§map: FxHashMap<ItemLocalId, Option<Scope>>Implementations§
source§impl RvalueScopes
impl RvalueScopes
pub fn new() -> Self
sourcepub fn temporary_scope(
&self,
region_scope_tree: &ScopeTree,
expr_id: ItemLocalId
) -> Option<Scope>
pub fn temporary_scope(
&self,
region_scope_tree: &ScopeTree,
expr_id: ItemLocalId
) -> Option<Scope>
Returns the scope when the temp created by expr_id will be cleaned up.
sourcepub fn record_rvalue_scope(&mut self, var: ItemLocalId, lifetime: Option<Scope>)
pub fn record_rvalue_scope(&mut self, var: ItemLocalId, lifetime: Option<Scope>)
Make an association between a sub-expression and an extended lifetime
Trait Implementations§
source§impl Clone for RvalueScopes
impl Clone for RvalueScopes
source§fn clone(&self) -> RvalueScopes
fn clone(&self) -> RvalueScopes
Returns a copy of the value. Read more
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from
source. Read moresource§impl Debug for RvalueScopes
impl Debug for RvalueScopes
source§impl Default for RvalueScopes
impl Default for RvalueScopes
source§fn default() -> RvalueScopes
fn default() -> RvalueScopes
Returns the “default value” for a type. Read more
source§impl<'__ctx> HashStable<StableHashingContext<'__ctx>> for RvalueScopes
impl<'__ctx> HashStable<StableHashingContext<'__ctx>> for RvalueScopes
fn hash_stable(
&self,
__hcx: &mut StableHashingContext<'__ctx>,
__hasher: &mut StableHasher
)
source§impl PartialEq<RvalueScopes> for RvalueScopes
impl PartialEq<RvalueScopes> for RvalueScopes
source§fn eq(&self, other: &RvalueScopes) -> bool
fn eq(&self, other: &RvalueScopes) -> bool
impl Eq for RvalueScopes
impl StructuralEq for RvalueScopes
impl StructuralPartialEq for RvalueScopes
Auto Trait Implementations§
impl RefUnwindSafe for RvalueScopes
impl Send for RvalueScopes
impl Sync for RvalueScopes
impl Unpin for RvalueScopes
impl UnwindSafe for RvalueScopes
Blanket Implementations§
source§impl<Tcx, T> DepNodeParams<Tcx> for Twhere
Tcx: DepContext,
T: for<'a> HashStable<StableHashingContext<'a>> + Debug,
impl<Tcx, T> DepNodeParams<Tcx> for Twhere
Tcx: DepContext,
T: for<'a> HashStable<StableHashingContext<'a>> + Debug,
default fn fingerprint_style() -> FingerprintStyle
source§default fn to_fingerprint(&self, tcx: Tcx) -> Fingerprint
default fn to_fingerprint(&self, tcx: Tcx) -> Fingerprint
This method turns the parameters of a DepNodeConstructor into an opaque
Fingerprint to be used in DepNode.
Not all DepNodeParams support being turned into a Fingerprint (they
don’t need to if the corresponding DepNode is anonymous). Read more
default fn to_debug_str(&self, _: Tcx) -> String
source§default fn recover(
_: Tcx,
_: &DepNode<<Tcx as DepContext>::DepKind>
) -> Option<T>
default fn recover(
_: Tcx,
_: &DepNode<<Tcx as DepContext>::DepKind>
) -> Option<T>
This method tries to recover the query key from the given
DepNode,
something which is needed when forcing DepNodes during red-green
evaluation. The query system will only call this method if
fingerprint_style() is not FingerprintStyle::Opaque.
It is always valid to return None here, in which case incremental
compilation will treat the query as having changed instead of forcing it. Read moresource§impl<T, R> InternIteratorElement<T, R> for T
impl<T, R> InternIteratorElement<T, R> for T
type Output = R
fn intern_with<I, F>(iter: I, f: F) -> <T as InternIteratorElement<T, R>>::Outputwhere
I: Iterator<Item = T>,
F: FnOnce(&[T]) -> R,
source§impl<T> MaybeResult<T> for T
impl<T> MaybeResult<T> for T
source§impl<'tcx, T> ToPredicate<'tcx, T> for T
impl<'tcx, T> ToPredicate<'tcx, T> for T
fn to_predicate(self, _tcx: TyCtxt<'tcx>) -> T
source§impl<Tcx, T> Value<Tcx> for Twhere
Tcx: DepContext,
impl<Tcx, T> Value<Tcx> for Twhere
Tcx: DepContext,
default fn from_cycle_error(tcx: Tcx, _: &[QueryInfo]) -> T
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: 32 bytes