Struct chalk_ir::SubtypeGoal [−][src]
Expand description
Subtype goal: tries to prove that a
is a subtype of b
Fields
a: Ty<I>
b: Ty<I>
Trait Implementations
type Result = SubtypeGoal<I>
type Result = SubtypeGoal<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
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
This method tests for self
and other
values to be equal, and is used
by ==
. Read more
This method tests for !=
.
fn visit_with<'i, B>(
&self,
visitor: &mut dyn Visitor<'i, I, BreakTy = B>,
outer_binder: DebruijnIndex
) -> ControlFlow<B> where
I: 'i,
fn visit_with<'i, B>(
&self,
visitor: &mut dyn Visitor<'i, I, BreakTy = B>,
outer_binder: DebruijnIndex
) -> ControlFlow<B> where
I: 'i,
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
Auto Trait Implementations
impl<I> RefUnwindSafe for SubtypeGoal<I> where
<I as Interner>::InternedType: RefUnwindSafe,
impl<I> Send for SubtypeGoal<I> where
<I as Interner>::InternedType: Send,
impl<I> Sync for SubtypeGoal<I> where
<I as Interner>::InternedType: Sync,
impl<I> Unpin for SubtypeGoal<I> where
<I as Interner>::InternedType: Unpin,
impl<I> UnwindSafe for SubtypeGoal<I> where
<I as Interner>::InternedType: UnwindSafe,
Blanket Implementations
Mutably borrows from an owned value. Read more
Cast a value to type U
using CastTo
.
Shifts this term in one level of binders.
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
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
Shifts this term out one level of binders.