Enum chalk_ir::FromEnv [−][src]
Expand description
Checks whether a type or trait ref can be derived from the contents of the environment.
Variants
Trait(TraitRef<I>)
A predicate which enables deriving everything which should be true if we know that
some trait ref is well-formed. For example given the above trait definitions, we can use
FromEnv(T: Copy)
to derive that T: Clone
, like in:
forall<T> {
if (FromEnv(T: Copy)) {
T: Clone
}
}
Ty(Ty<I>)
A predicate which enables deriving everything which should be true if we know that
some type is well-formed. For example given the above type definition, we can use
FromEnv(Set<K>)
to derive that K: Hash
, like in:
forall<K> {
if (FromEnv(Set<K>)) {
K: Hash
}
}
Trait Implementations
impl<I: Interner> CastTo<DomainGoal<I>> for FromEnv<I>
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impl<I: Interner> CastTo<DomainGoal<I>> for FromEnv<I>
[src]fn cast_to(self, _interner: &I) -> DomainGoal<I>
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fn cast_to(self, _interner: &I) -> DomainGoal<I>
[src]Cast a value to type T
.
impl<I: Interner> Fold<I> for FromEnv<I>
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impl<I: Interner> Fold<I> for FromEnv<I>
[src]type Result = FromEnv<I>
type Result = FromEnv<I>
The type of value that will be produced once folding is done.
Typically this is Self
, unless Self
contains borrowed
values, in which case owned values are produced (for example,
one can fold over a &T
value where T: Fold
, in which case
you get back a T
, not a &T
). Read more
fn fold_with<'i>(
self,
folder: &mut dyn Folder<'i, I>,
outer_binder: DebruijnIndex
) -> Fallible<Self::Result> where
I: 'i,
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fn fold_with<'i>(
self,
folder: &mut dyn Folder<'i, I>,
outer_binder: DebruijnIndex
) -> Fallible<Self::Result> where
I: 'i,
[src]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
impl<I: Interner> HasInterner for FromEnv<I>
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impl<I: Interner> HasInterner for FromEnv<I>
[src]type Interner = I
type Interner = I
The interner associated with the type.
impl<I: Interner> Visit<I> for FromEnv<I>
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impl<I: Interner> Visit<I> for FromEnv<I>
[src]fn visit_with<'i, B>(
&self,
visitor: &mut dyn Visitor<'i, I, BreakTy = B>,
outer_binder: DebruijnIndex
) -> ControlFlow<B> where
I: 'i,
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fn visit_with<'i, B>(
&self,
visitor: &mut dyn Visitor<'i, I, BreakTy = B>,
outer_binder: DebruijnIndex
) -> ControlFlow<B> where
I: 'i,
[src]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
impl<I: Interner> Copy for FromEnv<I> where
I::InternedType: Copy,
I::InternedSubstitution: Copy,
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I::InternedType: Copy,
I::InternedSubstitution: Copy,
impl<I: Eq + Interner> Eq for FromEnv<I>
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impl<I: Interner> StructuralEq for FromEnv<I>
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impl<I: Interner> StructuralPartialEq for FromEnv<I>
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Auto Trait Implementations
impl<I> RefUnwindSafe for FromEnv<I> where
<I as Interner>::DefId: RefUnwindSafe,
<I as Interner>::InternedSubstitution: RefUnwindSafe,
<I as Interner>::InternedType: RefUnwindSafe,
<I as Interner>::DefId: RefUnwindSafe,
<I as Interner>::InternedSubstitution: RefUnwindSafe,
<I as Interner>::InternedType: RefUnwindSafe,
impl<I> Send for FromEnv<I> where
<I as Interner>::DefId: Send,
<I as Interner>::InternedSubstitution: Send,
<I as Interner>::InternedType: Send,
<I as Interner>::DefId: Send,
<I as Interner>::InternedSubstitution: Send,
<I as Interner>::InternedType: Send,
impl<I> Sync for FromEnv<I> where
<I as Interner>::DefId: Sync,
<I as Interner>::InternedSubstitution: Sync,
<I as Interner>::InternedType: Sync,
<I as Interner>::DefId: Sync,
<I as Interner>::InternedSubstitution: Sync,
<I as Interner>::InternedType: Sync,
impl<I> Unpin for FromEnv<I> where
<I as Interner>::DefId: Unpin,
<I as Interner>::InternedSubstitution: Unpin,
<I as Interner>::InternedType: Unpin,
<I as Interner>::DefId: Unpin,
<I as Interner>::InternedSubstitution: Unpin,
<I as Interner>::InternedType: Unpin,
impl<I> UnwindSafe for FromEnv<I> where
<I as Interner>::DefId: UnwindSafe,
<I as Interner>::InternedSubstitution: UnwindSafe,
<I as Interner>::InternedType: UnwindSafe,
<I as Interner>::DefId: UnwindSafe,
<I as Interner>::InternedSubstitution: UnwindSafe,
<I as Interner>::InternedType: UnwindSafe,
Blanket Implementations
impl<T> BorrowMut<T> for T where
T: ?Sized,
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impl<T> BorrowMut<T> for T where
T: ?Sized,
[src]pub fn borrow_mut(&mut self) -> &mut T
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pub fn borrow_mut(&mut self) -> &mut T
[src]Mutably borrows from an owned value. Read more
impl<T> Cast for T
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impl<T> Cast for T
[src]fn cast<U>(self, interner: &U::Interner) -> U where
Self: CastTo<U>,
U: HasInterner,
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fn cast<U>(self, interner: &U::Interner) -> U where
Self: CastTo<U>,
U: HasInterner,
[src]Cast a value to type U
using CastTo
.
impl<T, I> CastTo<ProgramClause<I>> for T where
T: CastTo<DomainGoal<I>>,
I: Interner,
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impl<T, I> CastTo<ProgramClause<I>> for T where
T: CastTo<DomainGoal<I>>,
I: Interner,
[src]pub fn cast_to(Self, &I) -> ProgramClause<I>
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pub fn cast_to(Self, &I) -> ProgramClause<I>
[src]Cast a value to type T
.
impl<T, I> CouldMatch<T> for T where
T: Zip<I> + HasInterner<Interner = I> + ?Sized,
I: Interner,
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impl<T, I> CouldMatch<T> for T where
T: Zip<I> + HasInterner<Interner = I> + ?Sized,
I: Interner,
[src]pub fn could_match(&Self, &I, &dyn UnificationDatabase<I>, &T) -> bool
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pub fn could_match(&Self, &I, &dyn UnificationDatabase<I>, &T) -> bool
[src]Checks whether self
and other
could possibly match.
impl<T, I> Shift<I> for T where
T: Fold<I>,
I: Interner,
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impl<T, I> Shift<I> for T where
T: Fold<I>,
I: Interner,
[src]pub fn shifted_in(Self, &I) -> <T as Fold<I>>::Result
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pub fn shifted_in(Self, &I) -> <T as Fold<I>>::Result
[src]Shifts this term in one level of binders.
pub fn shifted_in_from(Self, &I, DebruijnIndex) -> <T as Fold<I>>::Result
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pub fn shifted_in_from(Self, &I, DebruijnIndex) -> <T as Fold<I>>::Result
[src]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
pub fn shifted_out_to(
Self,
&I,
DebruijnIndex
) -> Result<<T as Fold<I>>::Result, NoSolution>
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pub fn shifted_out_to(
Self,
&I,
DebruijnIndex
) -> Result<<T as Fold<I>>::Result, NoSolution>
[src]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
pub fn shifted_out(Self, &I) -> Result<<T as Fold<I>>::Result, NoSolution>
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pub fn shifted_out(Self, &I) -> Result<<T as Fold<I>>::Result, NoSolution>
[src]Shifts this term out one level of binders.
impl<T> ToOwned for T where
T: Clone,
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impl<T> ToOwned for T where
T: Clone,
[src]type Owned = T
type Owned = T
The resulting type after obtaining ownership.
pub fn to_owned(&self) -> T
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pub fn to_owned(&self) -> T
[src]Creates owned data from borrowed data, usually by cloning. Read more
pub fn clone_into(&self, target: &mut T)
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pub fn clone_into(&self, target: &mut T)
[src]🔬 This is a nightly-only experimental API. (toowned_clone_into
)
recently added
Uses borrowed data to replace owned data, usually by cloning. Read more