Struct rustc_infer::infer::InferCtxtBuilder
source · pub struct InferCtxtBuilder<'tcx> {
tcx: TyCtxt<'tcx>,
defining_use_anchor: DefiningAnchor,
considering_regions: bool,
skip_leak_check: bool,
intercrate: bool,
next_trait_solver: bool,
}
Expand description
Used to configure inference contexts before their creation.
Fields§
§tcx: TyCtxt<'tcx>
§defining_use_anchor: DefiningAnchor
§considering_regions: bool
§skip_leak_check: bool
§intercrate: bool
Whether we are in coherence mode.
next_trait_solver: bool
Whether we should use the new trait solver in the local inference context,
which affects things like which solver is used in predicate_may_hold
.
Implementations§
source§impl<'tcx> InferCtxtBuilder<'tcx>
impl<'tcx> InferCtxtBuilder<'tcx>
sourcepub fn with_opaque_type_inference(
self,
defining_use_anchor: DefiningAnchor
) -> Self
pub fn with_opaque_type_inference( self, defining_use_anchor: DefiningAnchor ) -> Self
Whenever the InferCtxt
should be able to handle defining uses of opaque types,
you need to call this function. Otherwise the opaque type will be treated opaquely.
It is only meant to be called in two places, for typeck
(via Inherited::build
) and for the inference context used
in mir borrowck.
pub fn with_next_trait_solver(self, next_trait_solver: bool) -> Self
pub fn intercrate(self, intercrate: bool) -> Self
pub fn ignoring_regions(self) -> Self
pub fn skip_leak_check(self, skip_leak_check: bool) -> Self
sourcepub fn build_with_canonical<T>(
&mut self,
span: Span,
canonical: &Canonical<'tcx, T>
) -> (InferCtxt<'tcx>, T, CanonicalVarValues<'tcx>)where
T: TypeFoldable<TyCtxt<'tcx>>,
pub fn build_with_canonical<T>( &mut self, span: Span, canonical: &Canonical<'tcx, T> ) -> (InferCtxt<'tcx>, T, CanonicalVarValues<'tcx>)where T: TypeFoldable<TyCtxt<'tcx>>,
Given a canonical value C
as a starting point, create an
inference context that contains each of the bound values
within instantiated as a fresh variable. The f
closure is
invoked with the new infcx, along with the instantiated value
V
and a substitution S
. This substitution S
maps from
the bound values in C
to their instantiated values in V
(in other words, S(C) = V
).
pub fn build(&mut self) -> InferCtxt<'tcx>
Auto Trait Implementations§
impl<'tcx> !RefUnwindSafe for InferCtxtBuilder<'tcx>
impl<'tcx> !Send for InferCtxtBuilder<'tcx>
impl<'tcx> !Sync for InferCtxtBuilder<'tcx>
impl<'tcx> Unpin for InferCtxtBuilder<'tcx>
impl<'tcx> !UnwindSafe for InferCtxtBuilder<'tcx>
Blanket Implementations§
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut 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: 16 bytes