Struct rustc::infer::canonical::QueryResult [−][src]
pub struct QueryResult<'tcx, R> { pub var_values: CanonicalVarValues<'tcx>, pub region_constraints: Vec<QueryRegionConstraint<'tcx>>, pub certainty: Certainty, pub value: R, }
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After we execute a query with a canonicalized key, we get back a
Canonical<QueryResult<..>>
. You can use
instantiate_query_result
to access the data in this result.
Fields
var_values: CanonicalVarValues<'tcx>
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region_constraints: Vec<QueryRegionConstraint<'tcx>>
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certainty: Certainty
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value: R
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Methods
impl<'tcx, R> QueryResult<'tcx, R>
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impl<'tcx, R> QueryResult<'tcx, R>
pub fn is_proven(&self) -> bool
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pub fn is_proven(&self) -> bool
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pub fn is_ambiguous(&self) -> bool
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pub fn is_ambiguous(&self) -> bool
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Trait Implementations
impl<'a, 'tcx, R> HashStable<StableHashingContext<'a>> for QueryResult<'tcx, R> where
R: HashStable<StableHashingContext<'a>>,
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impl<'a, 'tcx, R> HashStable<StableHashingContext<'a>> for QueryResult<'tcx, R> where
R: HashStable<StableHashingContext<'a>>,
fn hash_stable<W: StableHasherResult>(
&self,
__ctx: &mut StableHashingContext<'a>,
__hasher: &mut StableHasher<W>
)
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fn hash_stable<W: StableHasherResult>(
&self,
__ctx: &mut StableHashingContext<'a>,
__hasher: &mut StableHasher<W>
)
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impl<'tcx, R: Clone> Clone for QueryResult<'tcx, R>
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impl<'tcx, R: Clone> Clone for QueryResult<'tcx, R>
fn clone(&self) -> QueryResult<'tcx, R>
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fn clone(&self) -> QueryResult<'tcx, R>
Returns a copy of the value. Read more
fn clone_from(&mut self, source: &Self)
1.0.0[src]
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from source
. Read more
impl<'tcx, R: Debug> Debug for QueryResult<'tcx, R>
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impl<'tcx, R: Debug> Debug for QueryResult<'tcx, R>
fn fmt(&self, f: &mut Formatter) -> Result
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fn fmt(&self, f: &mut Formatter) -> Result
Formats the value using the given formatter. Read more
impl<'tcx, R> TypeFoldable<'tcx> for QueryResult<'tcx, R> where
R: TypeFoldable<'tcx>,
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impl<'tcx, R> TypeFoldable<'tcx> for QueryResult<'tcx, R> where
R: TypeFoldable<'tcx>,
fn super_fold_with<'gcx: 'tcx, V: TypeFolder<'gcx, 'tcx>>(
&self,
folder: &mut V
) -> Self
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fn super_fold_with<'gcx: 'tcx, V: TypeFolder<'gcx, 'tcx>>(
&self,
folder: &mut V
) -> Self
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fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> bool
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fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> bool
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fn fold_with<'gcx: 'tcx, F: TypeFolder<'gcx, 'tcx>>(
&self,
folder: &mut F
) -> Self
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fn fold_with<'gcx: 'tcx, F: TypeFolder<'gcx, 'tcx>>(
&self,
folder: &mut F
) -> Self
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fn visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> bool
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fn visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> bool
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fn has_regions_escaping_depth(&self, depth: u32) -> bool
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fn has_regions_escaping_depth(&self, depth: u32) -> bool
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fn has_escaping_regions(&self) -> bool
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fn has_escaping_regions(&self) -> bool
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fn has_type_flags(&self, flags: TypeFlags) -> bool
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fn has_type_flags(&self, flags: TypeFlags) -> bool
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fn has_projections(&self) -> bool
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fn has_projections(&self) -> bool
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fn references_error(&self) -> bool
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fn references_error(&self) -> bool
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fn has_param_types(&self) -> bool
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fn has_param_types(&self) -> bool
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fn has_self_ty(&self) -> bool
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fn has_self_ty(&self) -> bool
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fn has_infer_types(&self) -> bool
[src]
fn has_infer_types(&self) -> bool
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fn needs_infer(&self) -> bool
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fn needs_infer(&self) -> bool
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fn has_skol(&self) -> bool
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fn has_skol(&self) -> bool
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fn needs_subst(&self) -> bool
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fn needs_subst(&self) -> bool
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fn has_re_skol(&self) -> bool
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fn has_re_skol(&self) -> bool
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fn has_closure_types(&self) -> bool
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fn has_closure_types(&self) -> bool
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fn has_free_regions(&self) -> bool
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fn has_free_regions(&self) -> bool
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"Free" regions in this context means that it has any region that is not (a) erased or (b) late-bound. Read more
fn has_erasable_regions(&self) -> bool
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fn has_erasable_regions(&self) -> bool
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True if there any any un-erased free regions.
fn is_global(&self) -> bool
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fn is_global(&self) -> bool
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Indicates whether this value references only 'global' types/lifetimes that are the same regardless of what fn we are in. This is used for caching. Errs on the side of returning false. Read more
impl<'a, 'tcx, R> Lift<'tcx> for QueryResult<'a, R> where
R: Lift<'tcx>,
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impl<'a, 'tcx, R> Lift<'tcx> for QueryResult<'a, R> where
R: Lift<'tcx>,
type Lifted = QueryResult<'tcx, R::Lifted>
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fn lift_to_tcx<'b, 'gcx>(
&self,
tcx: TyCtxt<'b, 'gcx, 'tcx>
) -> Option<QueryResult<'tcx, R::Lifted>>
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fn lift_to_tcx<'b, 'gcx>(
&self,
tcx: TyCtxt<'b, 'gcx, 'tcx>
) -> Option<QueryResult<'tcx, R::Lifted>>
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impl<'gcx: 'tcx, 'tcx> Canonicalize<'gcx, 'tcx> for QueryResult<'tcx, DropckOutlivesResult<'tcx>>
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impl<'gcx: 'tcx, 'tcx> Canonicalize<'gcx, 'tcx> for QueryResult<'tcx, DropckOutlivesResult<'tcx>>
type Canonicalized = Lrc<Canonical<'gcx, QueryResult<'gcx, DropckOutlivesResult<'gcx>>>>
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fn intern(
_gcx: TyCtxt<'_, 'gcx, 'gcx>,
value: Canonical<'gcx, Self::Lifted>
) -> Self::Canonicalized
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fn intern(
_gcx: TyCtxt<'_, 'gcx, 'gcx>,
value: Canonical<'gcx, Self::Lifted>
) -> Self::Canonicalized
🔬 This is a nightly-only experimental API. (rustc_private
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this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml
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After a value has been fully canonicalized and lifted, this method will allocate it in a global arena. Read more
impl<'gcx: 'tcx, 'tcx> Canonicalize<'gcx, 'tcx> for QueryResult<'tcx, NormalizationResult<'tcx>>
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impl<'gcx: 'tcx, 'tcx> Canonicalize<'gcx, 'tcx> for QueryResult<'tcx, NormalizationResult<'tcx>>
type Canonicalized = Lrc<Canonical<'gcx, QueryResult<'gcx, NormalizationResult<'gcx>>>>
🔬 This is a nightly-only experimental API. (rustc_private
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fn intern(
_gcx: TyCtxt<'_, 'gcx, 'gcx>,
value: Canonical<'gcx, Self::Lifted>
) -> Self::Canonicalized
[src]
fn intern(
_gcx: TyCtxt<'_, 'gcx, 'gcx>,
value: Canonical<'gcx, Self::Lifted>
) -> Self::Canonicalized
🔬 This is a nightly-only experimental API. (rustc_private
)
this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml
instead?
After a value has been fully canonicalized and lifted, this method will allocate it in a global arena. Read more
Auto Trait Implementations
impl<'tcx, R> !Send for QueryResult<'tcx, R>
impl<'tcx, R> !Send for QueryResult<'tcx, R>
impl<'tcx, R> !Sync for QueryResult<'tcx, R>
impl<'tcx, R> !Sync for QueryResult<'tcx, R>