Enum chalk_ir::WhereClause
source · [−]pub enum WhereClause<I: Interner> {
Implemented(TraitRef<I>),
AliasEq(AliasEq<I>),
LifetimeOutlives(LifetimeOutlives<I>),
TypeOutlives(TypeOutlives<I>),
}
Expand description
Where clauses that can be written by a Rust programmer.
Variants
Implemented(TraitRef<I>)
Type implements a trait.
AliasEq(AliasEq<I>)
Type is equal to an alias.
LifetimeOutlives(LifetimeOutlives<I>)
One lifetime outlives another.
TypeOutlives(TypeOutlives<I>)
Type outlives a lifetime.
Implementations
sourceimpl<I: Interner> WhereClause<I>
impl<I: Interner> WhereClause<I>
sourcepub fn into_well_formed_goal(self, interner: I) -> DomainGoal<I>
pub fn into_well_formed_goal(self, interner: I) -> DomainGoal<I>
Turn a where clause into the WF version of it i.e.:
Implemented(T: Trait)
maps toWellFormed(T: Trait)
ProjectionEq(<T as Trait>::Item = Foo)
maps toWellFormed(<T as Trait>::Item = Foo)
- any other clause maps to itself
sourcepub fn into_from_env_goal(self, interner: I) -> DomainGoal<I>
pub fn into_from_env_goal(self, interner: I) -> DomainGoal<I>
Same as into_well_formed_goal
but with the FromEnv
predicate instead of WellFormed
.
Trait Implementations
sourceimpl<I: Interner> CastTo<WhereClause<I>> for AliasEq<I>
impl<I: Interner> CastTo<WhereClause<I>> for AliasEq<I>
sourcefn cast_to(self, _interner: I) -> WhereClause<I>
fn cast_to(self, _interner: I) -> WhereClause<I>
Cast a value to type T
.
sourceimpl<I: Interner> CastTo<WhereClause<I>> for LifetimeOutlives<I>
impl<I: Interner> CastTo<WhereClause<I>> for LifetimeOutlives<I>
sourcefn cast_to(self, _interner: I) -> WhereClause<I>
fn cast_to(self, _interner: I) -> WhereClause<I>
Cast a value to type T
.
sourceimpl<I: Interner> CastTo<WhereClause<I>> for TraitRef<I>
impl<I: Interner> CastTo<WhereClause<I>> for TraitRef<I>
sourcefn cast_to(self, _interner: I) -> WhereClause<I>
fn cast_to(self, _interner: I) -> WhereClause<I>
Cast a value to type T
.
sourceimpl<I: Interner> CastTo<WhereClause<I>> for TypeOutlives<I>
impl<I: Interner> CastTo<WhereClause<I>> for TypeOutlives<I>
sourcefn cast_to(self, _interner: I) -> WhereClause<I>
fn cast_to(self, _interner: I) -> WhereClause<I>
Cast a value to type T
.
sourceimpl<I: Interner> CastTo<WhereClause<I>> for WhereClause<I>
impl<I: Interner> CastTo<WhereClause<I>> for WhereClause<I>
sourcefn cast_to(
self,
_interner: <WhereClause<I> as HasInterner>::Interner
) -> WhereClause<I>
fn cast_to(
self,
_interner: <WhereClause<I> as HasInterner>::Interner
) -> WhereClause<I>
Cast a value to type T
.
sourceimpl<I: Clone + Interner> Clone for WhereClause<I>
impl<I: Clone + Interner> Clone for WhereClause<I>
sourcefn clone(&self) -> WhereClause<I>
fn clone(&self) -> WhereClause<I>
Returns a copy of the value. Read more
1.0.0 · sourcefn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from source
. Read more
sourceimpl<I: Interner> Debug for WhereClause<I>
impl<I: Interner> Debug for WhereClause<I>
sourceimpl<I: Interner> HasInterner for WhereClause<I>
impl<I: Interner> HasInterner for WhereClause<I>
type Interner = I
type Interner = I
The interner associated with the type.
sourceimpl<I: Hash + Interner> Hash for WhereClause<I>
impl<I: Hash + Interner> Hash for WhereClause<I>
sourceimpl<I: PartialEq + Interner> PartialEq<WhereClause<I>> for WhereClause<I>
impl<I: PartialEq + Interner> PartialEq<WhereClause<I>> for WhereClause<I>
sourcefn eq(&self, other: &WhereClause<I>) -> bool
fn eq(&self, other: &WhereClause<I>) -> bool
This method tests for self
and other
values to be equal, and is used
by ==
. Read more
sourcefn ne(&self, other: &WhereClause<I>) -> bool
fn ne(&self, other: &WhereClause<I>) -> bool
This method tests for !=
.
sourceimpl<I: Interner> TypeFoldable<I> for WhereClause<I>
impl<I: Interner> TypeFoldable<I> for WhereClause<I>
sourcefn fold_with<E>(
self,
folder: &mut dyn TypeFolder<I, Error = E>,
outer_binder: DebruijnIndex
) -> Result<Self, E>
fn fold_with<E>(
self,
folder: &mut dyn TypeFolder<I, Error = E>,
outer_binder: DebruijnIndex
) -> Result<Self, E>
Apply the given folder folder
to self
; binders
is the
number of binders that are in scope when beginning the
folder. Typically binders
starts as 0, but is adjusted when
we encounter Binders<T>
in the IR or other similar
constructs. Read more
sourceimpl<I: Interner> TypeSuperVisitable<I> for WhereClause<I>
impl<I: Interner> TypeSuperVisitable<I> for WhereClause<I>
sourcefn super_visit_with<B>(
&self,
visitor: &mut dyn TypeVisitor<I, BreakTy = B>,
outer_binder: DebruijnIndex
) -> ControlFlow<B>
fn super_visit_with<B>(
&self,
visitor: &mut dyn TypeVisitor<I, BreakTy = B>,
outer_binder: DebruijnIndex
) -> ControlFlow<B>
Recursively visits the type contents.
sourceimpl<I: Interner> TypeVisitable<I> for WhereClause<I>
impl<I: Interner> TypeVisitable<I> for WhereClause<I>
sourcefn visit_with<B>(
&self,
visitor: &mut dyn TypeVisitor<I, BreakTy = B>,
outer_binder: DebruijnIndex
) -> ControlFlow<B>
fn visit_with<B>(
&self,
visitor: &mut dyn TypeVisitor<I, BreakTy = B>,
outer_binder: DebruijnIndex
) -> ControlFlow<B>
Apply the given visitor visitor
to self
; binders
is the
number of binders that are in scope when beginning the
visitor. Typically binders
starts as 0, but is adjusted when
we encounter Binders<T>
in the IR or other similar
constructs. Read more
sourceimpl<I: Interner> Zip<I> for WhereClause<I>
impl<I: Interner> Zip<I> for WhereClause<I>
impl<I: Interner> Copy for WhereClause<I> where
I::InternedSubstitution: Copy,
I::InternedLifetime: Copy,
I::InternedType: Copy,
impl<I: Eq + Interner> Eq for WhereClause<I>
impl<I: Interner> StructuralEq for WhereClause<I>
impl<I: Interner> StructuralPartialEq for WhereClause<I>
Auto Trait Implementations
impl<I> RefUnwindSafe for WhereClause<I> where
<I as Interner>::DefId: RefUnwindSafe,
<I as Interner>::InternedLifetime: RefUnwindSafe,
<I as Interner>::InternedSubstitution: RefUnwindSafe,
<I as Interner>::InternedType: RefUnwindSafe,
impl<I> Send for WhereClause<I> where
<I as Interner>::DefId: Send,
<I as Interner>::InternedLifetime: Send,
<I as Interner>::InternedSubstitution: Send,
<I as Interner>::InternedType: Send,
impl<I> Sync for WhereClause<I> where
<I as Interner>::DefId: Sync,
<I as Interner>::InternedLifetime: Sync,
<I as Interner>::InternedSubstitution: Sync,
<I as Interner>::InternedType: Sync,
impl<I> Unpin for WhereClause<I> where
<I as Interner>::DefId: Unpin,
<I as Interner>::InternedLifetime: Unpin,
<I as Interner>::InternedSubstitution: Unpin,
<I as Interner>::InternedType: Unpin,
impl<I> UnwindSafe for WhereClause<I> where
<I as Interner>::DefId: UnwindSafe,
<I as Interner>::InternedLifetime: UnwindSafe,
<I as Interner>::InternedSubstitution: UnwindSafe,
<I as Interner>::InternedType: UnwindSafe,
Blanket Implementations
sourceimpl<T> BorrowMut<T> for T where
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
sourceimpl<T> Cast for T
impl<T> Cast for T
sourcefn cast<U>(self, interner: U::Interner) -> U where
Self: CastTo<U>,
U: HasInterner,
fn cast<U>(self, interner: U::Interner) -> U where
Self: CastTo<U>,
U: HasInterner,
Cast a value to type U
using CastTo
.
sourceimpl<T, I> CastTo<DomainGoal<I>> for T where
T: CastTo<WhereClause<I>>,
I: Interner,
impl<T, I> CastTo<DomainGoal<I>> for T where
T: CastTo<WhereClause<I>>,
I: Interner,
sourcefn cast_to(self, interner: I) -> DomainGoal<I>
fn cast_to(self, interner: I) -> DomainGoal<I>
Cast a value to type T
.
sourceimpl<T, I> CastTo<ProgramClause<I>> for T where
T: CastTo<DomainGoal<I>>,
I: Interner,
impl<T, I> CastTo<ProgramClause<I>> for T where
T: CastTo<DomainGoal<I>>,
I: Interner,
sourcefn cast_to(self, interner: I) -> ProgramClause<I>
fn cast_to(self, interner: I) -> ProgramClause<I>
Cast a value to type T
.
sourceimpl<T, I> CouldMatch<T> for T where
T: Zip<I> + HasInterner<Interner = I> + ?Sized,
I: Interner,
impl<T, I> CouldMatch<T> for T where
T: Zip<I> + HasInterner<Interner = I> + ?Sized,
I: Interner,
sourcefn could_match(
&self,
interner: I,
db: &dyn UnificationDatabase<I>,
other: &T
) -> bool
fn could_match(
&self,
interner: I,
db: &dyn UnificationDatabase<I>,
other: &T
) -> bool
Checks whether self
and other
could possibly match.
sourceimpl<T, I> Shift<I> for T where
T: TypeFoldable<I>,
I: Interner,
impl<T, I> Shift<I> for T where
T: TypeFoldable<I>,
I: Interner,
sourcefn shifted_in(self, interner: I) -> T
fn shifted_in(self, interner: I) -> T
Shifts this term in one level of binders.
sourcefn shifted_in_from(self, interner: I, source_binder: DebruijnIndex) -> T
fn shifted_in_from(self, interner: I, source_binder: DebruijnIndex) -> T
Shifts a term valid at outer_binder
so that it is
valid at the innermost binder. See DebruijnIndex::shifted_in_from
for a detailed explanation. Read more
sourcefn shifted_out_to(
self,
interner: I,
target_binder: DebruijnIndex
) -> Result<T, NoSolution>
fn shifted_out_to(
self,
interner: I,
target_binder: DebruijnIndex
) -> Result<T, NoSolution>
Shifts a term valid at the innermost binder so that it is
valid at outer_binder
. See DebruijnIndex::shifted_out_to
for a detailed explanation. Read more
sourcefn shifted_out(self, interner: I) -> Result<T, NoSolution>
fn shifted_out(self, interner: I) -> Result<T, NoSolution>
Shifts this term out one level of binders.
sourceimpl<T, I> VisitExt<I> for T where
I: Interner,
T: TypeVisitable<I>,
impl<T, I> VisitExt<I> for T where
I: Interner,
T: TypeVisitable<I>,
sourcefn has_free_vars(&self, interner: I) -> bool
fn has_free_vars(&self, interner: I) -> bool
Check whether there are free (non-bound) variables.