[−][src]Struct rustc_mir::hair::pattern::_match::MatchCheckCtxt
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)
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Fields
tcx: TyCtxt<'a, 'tcx, 'tcx>
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module: DefId
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)
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The module in which the match occurs. This is necessary for
checking inhabited-ness of types because whether a type is (visibly)
inhabited can depend on whether it was defined in the current module or
not. eg. struct Foo { _private: ! }
cannot be seen to be empty
outside it's module and should not be matchable with an empty match
statement.
pattern_arena: &'a TypedArena<Pattern<'tcx>>
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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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byte_array_map: FxHashMap<*const Pattern<'tcx>, Vec<&'a Pattern<'tcx>>>
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Methods
impl<'a, 'tcx> MatchCheckCtxt<'a, 'tcx>
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impl<'a, 'tcx> MatchCheckCtxt<'a, 'tcx>
pub fn create_and_enter<F, R>(
tcx: TyCtxt<'a, 'tcx, 'tcx>,
module: DefId,
f: F
) -> R where
F: for<'b> FnOnce(MatchCheckCtxt<'b, 'tcx>) -> R,
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pub fn create_and_enter<F, R>(
tcx: TyCtxt<'a, 'tcx, 'tcx>,
module: DefId,
f: F
) -> R where
F: for<'b> FnOnce(MatchCheckCtxt<'b, 'tcx>) -> R,
🔬 This is a nightly-only experimental API. (rustc_private
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fn lower_byte_str_pattern<'p>(
&mut self,
pat: &'p Pattern<'tcx>
) -> Vec<&'p Pattern<'tcx>> where
'a: 'p,
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fn lower_byte_str_pattern<'p>(
&mut self,
pat: &'p Pattern<'tcx>
) -> Vec<&'p Pattern<'tcx>> where
'a: 'p,
🔬 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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fn is_uninhabited(&self, ty: Ty<'tcx>) -> bool
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fn is_uninhabited(&self, ty: Ty<'tcx>) -> bool
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fn is_non_exhaustive_enum(&self, ty: Ty<'tcx>) -> bool
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fn is_non_exhaustive_enum(&self, ty: Ty<'tcx>) -> bool
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fn is_local(&self, ty: Ty<'tcx>) -> bool
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fn is_local(&self, ty: Ty<'tcx>) -> bool
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fn is_variant_uninhabited(
&self,
variant: &'tcx VariantDef,
substs: &'tcx Substs<'tcx>
) -> bool
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fn is_variant_uninhabited(
&self,
variant: &'tcx VariantDef,
substs: &'tcx Substs<'tcx>
) -> bool
🔬 This is a nightly-only experimental API. (rustc_private
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Auto Trait Implementations
impl<'a, 'tcx> !Send for MatchCheckCtxt<'a, 'tcx>
impl<'a, 'tcx> !Send for MatchCheckCtxt<'a, 'tcx>
impl<'a, 'tcx> !Sync for MatchCheckCtxt<'a, 'tcx>
impl<'a, 'tcx> !Sync for MatchCheckCtxt<'a, 'tcx>
Blanket Implementations
impl<T> From for T
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impl<T> From for T
impl<T, U> Into for T where
U: From<T>,
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impl<T, U> Into for T where
U: From<T>,
impl<T, U> TryFrom for T where
T: From<U>,
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impl<T, U> TryFrom for T where
T: From<U>,
type Error = !
try_from
)The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
[src]
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
try_from
)Performs the conversion.
impl<T> Borrow for T where
T: ?Sized,
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impl<T> Borrow for T where
T: ?Sized,
ⓘImportant traits for &'a mut Rfn borrow(&self) -> &T
[src]
fn borrow(&self) -> &T
Immutably borrows from an owned value. Read more
impl<T, U> TryInto for T where
U: TryFrom<T>,
[src]
impl<T, U> TryInto for T where
U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error
try_from
)The type returned in the event of a conversion error.
fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>
[src]
fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>
try_from
)Performs the conversion.
impl<T> BorrowMut for T where
T: ?Sized,
[src]
impl<T> BorrowMut for T where
T: ?Sized,
ⓘImportant traits for &'a mut Rfn borrow_mut(&mut self) -> &mut T
[src]
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
impl<T> Any for T where
T: 'static + ?Sized,
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impl<T> Any for T where
T: 'static + ?Sized,
fn get_type_id(&self) -> TypeId
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fn get_type_id(&self) -> TypeId
🔬 This is a nightly-only experimental API. (get_type_id
)
this method will likely be replaced by an associated static
Gets the TypeId
of self
. Read more
impl<E> SpecializationError for E
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impl<E> SpecializationError for E
fn not_found<S, T>(trait_name: &'static str, method_name: &'static str) -> E where
T: ?Sized,
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fn not_found<S, T>(trait_name: &'static str, method_name: &'static str) -> E where
T: ?Sized,
🔬 This is a nightly-only experimental API. (rustc_private
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Create an error for a missing method specialization. Defaults to panicking with type, trait & method names. S
is the encoder/decoder state type, T
is the type being encoded/decoded, and the arguments are the names of the trait and method that should've been overridden. Read more
impl<T> Erased for T
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impl<T> Erased for T
impl<T> Send for T where
T: ?Sized,
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impl<T> Send for T where
T: ?Sized,
impl<T> Sync for T where
T: ?Sized,
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impl<T> Sync for T where
T: ?Sized,
impl<T> Erased for T
impl<T> Erased for T
impl<T> MaybeResult for T
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impl<T> MaybeResult for T
fn from_ok(x: T) -> T
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fn from_ok(x: T) -> T
🔬 This is a nightly-only experimental API. (rustc_private
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fn map_same<F>(self, f: F) -> T where
F: FnOnce(T) -> T,
[src]
fn map_same<F>(self, f: F) -> T where
F: FnOnce(T) -> T,
🔬 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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impl<'a, T> Captures for T where
T: ?Sized,
[src]
impl<'a, T> Captures for T where
T: ?Sized,