#[repr(transparent)]pub struct BitSel<R = usize> where
R: BitRegister, { /* private fields */ }
Expand description
One-Hot Bit Selection Mask
This type selects exactly one bit in a register. It is a BitPos
shifted from
a counter to a selector, and is used to apply test and write operations to real
memory.
Type Parameters
R
: The register element this selector governs.
Validity
Values of this type are required to have exactly one bit set and all others cleared. Any other value makes the program incorrect, and will cause memory corruption.
Construction
This type is only constructed from BitPos
, and is always equivalent to
1 << BitPos
.
The chain of custody from known-good BitIdx
values, through proven-good
BitOrder
implementations, into BitPos
and then BitSel
proves that values
of this type are always correct to apply to real memory.
Implementations
sourceimpl<R> BitSel<R> where
R: BitRegister,
impl<R> BitSel<R> where
R: BitRegister,
sourcepub fn new(sel: R) -> Option<Self>
pub fn new(sel: R) -> Option<Self>
Wraps a selector value as a known-good selection in an R
register.
Parameters
sel
: A one-hot selection mask of a bit in anR
register.
Returns
This returns Some(sel)
when it is a power of two (exactly one bit set
and all others cleared), and None
when it is not.
sourcepub unsafe fn new_unchecked(sel: R) -> Self
pub unsafe fn new_unchecked(sel: R) -> Self
Wraps a selector value as an assumed-good selection in an R
register.
Parameters
sel
: A one-hot selection mask of a bit in anR
register.
Returns
This unconditionally marks sel
as a one-hot bit selector.
Safety
If the sel
value has zero or multiple bits set, then it is invalid to
be used as a BitSel
and the program is incorrect. Debug builds will
panic; release builds do not inspect the value or specify a behavior.
sourcepub fn into_inner(self) -> R
pub fn into_inner(self) -> R
Removes the one-hot selection wrapper, leaving the internal mask.
sourcepub fn range_all(
) -> impl Iterator<Item = Self> + DoubleEndedIterator + ExactSizeIterator + FusedIterator
pub fn range_all(
) -> impl Iterator<Item = Self> + DoubleEndedIterator + ExactSizeIterator + FusedIterator
Iterates over all possible selector values.
Trait Implementations
sourceimpl<R> Binary for BitSel<R> where
R: BitRegister,
impl<R> Binary for BitSel<R> where
R: BitRegister,
sourceimpl<R: Clone> Clone for BitSel<R> where
R: BitRegister,
impl<R: Clone> Clone for BitSel<R> where
R: BitRegister,
sourceimpl<R> Debug for BitSel<R> where
R: BitRegister,
impl<R> Debug for BitSel<R> where
R: BitRegister,
sourceimpl<R: Default> Default for BitSel<R> where
R: BitRegister,
impl<R: Default> Default for BitSel<R> where
R: BitRegister,
sourceimpl<R> Display for BitSel<R> where
R: BitRegister,
impl<R> Display for BitSel<R> where
R: BitRegister,
sourceimpl<R: Hash> Hash for BitSel<R> where
R: BitRegister,
impl<R: Hash> Hash for BitSel<R> where
R: BitRegister,
sourceimpl<R: Ord> Ord for BitSel<R> where
R: BitRegister,
impl<R: Ord> Ord for BitSel<R> where
R: BitRegister,
sourceimpl<R: PartialOrd> PartialOrd<BitSel<R>> for BitSel<R> where
R: BitRegister,
impl<R: PartialOrd> PartialOrd<BitSel<R>> for BitSel<R> where
R: BitRegister,
sourcefn partial_cmp(&self, other: &BitSel<R>) -> Option<Ordering>
fn partial_cmp(&self, other: &BitSel<R>) -> Option<Ordering>
This method returns an ordering between self
and other
values if one exists. Read more
1.0.0 · sourcefn lt(&self, other: &Rhs) -> bool
fn lt(&self, other: &Rhs) -> bool
This method tests less than (for self
and other
) and is used by the <
operator. Read more
1.0.0 · sourcefn le(&self, other: &Rhs) -> bool
fn le(&self, other: &Rhs) -> bool
This method tests less than or equal to (for self
and other
) and is used by the <=
operator. Read more
sourceimpl<R> Sum<BitSel<R>> for BitMask<R> where
R: BitRegister,
impl<R> Sum<BitSel<R>> for BitMask<R> where
R: BitRegister,
impl<R: Copy> Copy for BitSel<R> where
R: BitRegister,
impl<R: Eq> Eq for BitSel<R> where
R: BitRegister,
impl<R> StructuralEq for BitSel<R> where
R: BitRegister,
impl<R> StructuralPartialEq for BitSel<R> where
R: BitRegister,
Auto Trait Implementations
impl<R> RefUnwindSafe for BitSel<R> where
R: RefUnwindSafe,
impl<R> Send for BitSel<R>
impl<R> Sync for BitSel<R>
impl<R> Unpin for BitSel<R>
impl<R> UnwindSafe for BitSel<R> where
R: 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> FmtForward for T
impl<T> FmtForward for T
sourcefn fmt_binary(self) -> FmtBinary<Self> where
Self: Binary,
fn fmt_binary(self) -> FmtBinary<Self> where
Self: Binary,
Causes self
to use its Binary
implementation when Debug
-formatted. Read more
sourcefn fmt_display(self) -> FmtDisplay<Self> where
Self: Display,
fn fmt_display(self) -> FmtDisplay<Self> where
Self: Display,
Causes self
to use its Display
implementation when
Debug
-formatted. Read more
sourcefn fmt_lower_exp(self) -> FmtLowerExp<Self> where
Self: LowerExp,
fn fmt_lower_exp(self) -> FmtLowerExp<Self> where
Self: LowerExp,
Causes self
to use its LowerExp
implementation when
Debug
-formatted. Read more
sourcefn fmt_lower_hex(self) -> FmtLowerHex<Self> where
Self: LowerHex,
fn fmt_lower_hex(self) -> FmtLowerHex<Self> where
Self: LowerHex,
Causes self
to use its LowerHex
implementation when
Debug
-formatted. Read more
sourcefn fmt_octal(self) -> FmtOctal<Self> where
Self: Octal,
fn fmt_octal(self) -> FmtOctal<Self> where
Self: Octal,
Causes self
to use its Octal
implementation when Debug
-formatted. Read more
sourcefn fmt_pointer(self) -> FmtPointer<Self> where
Self: Pointer,
fn fmt_pointer(self) -> FmtPointer<Self> where
Self: Pointer,
Causes self
to use its Pointer
implementation when
Debug
-formatted. Read more
sourcefn fmt_upper_exp(self) -> FmtUpperExp<Self> where
Self: UpperExp,
fn fmt_upper_exp(self) -> FmtUpperExp<Self> where
Self: UpperExp,
Causes self
to use its UpperExp
implementation when
Debug
-formatted. Read more
sourcefn fmt_upper_hex(self) -> FmtUpperHex<Self> where
Self: UpperHex,
fn fmt_upper_hex(self) -> FmtUpperHex<Self> where
Self: UpperHex,
Causes self
to use its UpperHex
implementation when
Debug
-formatted. Read more
sourceimpl<T> Pipe for T where
T: ?Sized,
impl<T> Pipe for T where
T: ?Sized,
sourcefn pipe<R>(self, func: impl FnOnce(Self) -> R) -> R
fn pipe<R>(self, func: impl FnOnce(Self) -> R) -> R
Pipes by value. This is generally the method you want to use. Read more
sourcefn pipe_ref<'a, R>(&'a self, func: impl FnOnce(&'a Self) -> R) -> R where
R: 'a,
fn pipe_ref<'a, R>(&'a self, func: impl FnOnce(&'a Self) -> R) -> R where
R: 'a,
Borrows self
and passes that borrow into the pipe function. Read more
sourcefn pipe_ref_mut<'a, R>(&'a mut self, func: impl FnOnce(&'a mut Self) -> R) -> R where
R: 'a,
fn pipe_ref_mut<'a, R>(&'a mut self, func: impl FnOnce(&'a mut Self) -> R) -> R where
R: 'a,
Mutably borrows self
and passes that borrow into the pipe function. Read more
sourcefn pipe_borrow<'a, B, R>(&'a self, func: impl FnOnce(&'a B) -> R) -> R where
Self: Borrow<B>,
B: 'a + ?Sized,
R: 'a,
fn pipe_borrow<'a, B, R>(&'a self, func: impl FnOnce(&'a B) -> R) -> R where
Self: Borrow<B>,
B: 'a + ?Sized,
R: 'a,
Borrows self
, then passes self.borrow()
into the pipe function. Read more
sourcefn pipe_borrow_mut<'a, B, R>(
&'a mut self,
func: impl FnOnce(&'a mut B) -> R
) -> R where
Self: BorrowMut<B>,
B: 'a + ?Sized,
R: 'a,
fn pipe_borrow_mut<'a, B, R>(
&'a mut self,
func: impl FnOnce(&'a mut B) -> R
) -> R where
Self: BorrowMut<B>,
B: 'a + ?Sized,
R: 'a,
Mutably borrows self
, then passes self.borrow_mut()
into the pipe
function. Read more
sourcefn pipe_as_ref<'a, U, R>(&'a self, func: impl FnOnce(&'a U) -> R) -> R where
Self: AsRef<U>,
U: 'a + ?Sized,
R: 'a,
fn pipe_as_ref<'a, U, R>(&'a self, func: impl FnOnce(&'a U) -> R) -> R where
Self: AsRef<U>,
U: 'a + ?Sized,
R: 'a,
Borrows self
, then passes self.as_ref()
into the pipe function.
sourcefn pipe_as_mut<'a, U, R>(&'a mut self, func: impl FnOnce(&'a mut U) -> R) -> R where
Self: AsMut<U>,
U: 'a + ?Sized,
R: 'a,
fn pipe_as_mut<'a, U, R>(&'a mut self, func: impl FnOnce(&'a mut U) -> R) -> R where
Self: AsMut<U>,
U: 'a + ?Sized,
R: 'a,
Mutably borrows self
, then passes self.as_mut()
into the pipe
function. Read more
sourceimpl<T> Tap for T
impl<T> Tap for T
sourcefn tap_borrow<B>(self, func: impl FnOnce(&B)) -> Self where
Self: Borrow<B>,
B: ?Sized,
fn tap_borrow<B>(self, func: impl FnOnce(&B)) -> Self where
Self: Borrow<B>,
B: ?Sized,
Immutable access to the Borrow<B>
of a value. Read more
sourcefn tap_borrow_mut<B>(self, func: impl FnOnce(&mut B)) -> Self where
Self: BorrowMut<B>,
B: ?Sized,
fn tap_borrow_mut<B>(self, func: impl FnOnce(&mut B)) -> Self where
Self: BorrowMut<B>,
B: ?Sized,
Mutable access to the BorrowMut<B>
of a value. Read more
sourcefn tap_ref<R>(self, func: impl FnOnce(&R)) -> Self where
Self: AsRef<R>,
R: ?Sized,
fn tap_ref<R>(self, func: impl FnOnce(&R)) -> Self where
Self: AsRef<R>,
R: ?Sized,
Immutable access to the AsRef<R>
view of a value. Read more
sourcefn tap_ref_mut<R>(self, func: impl FnOnce(&mut R)) -> Self where
Self: AsMut<R>,
R: ?Sized,
fn tap_ref_mut<R>(self, func: impl FnOnce(&mut R)) -> Self where
Self: AsMut<R>,
R: ?Sized,
Mutable access to the AsMut<R>
view of a value. Read more
sourcefn tap_deref<T>(self, func: impl FnOnce(&T)) -> Self where
Self: Deref<Target = T>,
T: ?Sized,
fn tap_deref<T>(self, func: impl FnOnce(&T)) -> Self where
Self: Deref<Target = T>,
T: ?Sized,
Immutable access to the Deref::Target
of a value. Read more
sourcefn tap_deref_mut<T>(self, func: impl FnOnce(&mut T)) -> Self where
Self: DerefMut<Target = T> + Deref,
T: ?Sized,
fn tap_deref_mut<T>(self, func: impl FnOnce(&mut T)) -> Self where
Self: DerefMut<Target = T> + Deref,
T: ?Sized,
Mutable access to the Deref::Target
of a value. Read more
sourcefn tap_dbg(self, func: impl FnOnce(&Self)) -> Self
fn tap_dbg(self, func: impl FnOnce(&Self)) -> Self
Calls .tap()
only in debug builds, and is erased in release builds.
sourcefn tap_mut_dbg(self, func: impl FnOnce(&mut Self)) -> Self
fn tap_mut_dbg(self, func: impl FnOnce(&mut Self)) -> Self
Calls .tap_mut()
only in debug builds, and is erased in release
builds. Read more
sourcefn tap_borrow_dbg<B>(self, func: impl FnOnce(&B)) -> Self where
Self: Borrow<B>,
B: ?Sized,
fn tap_borrow_dbg<B>(self, func: impl FnOnce(&B)) -> Self where
Self: Borrow<B>,
B: ?Sized,
Calls .tap_borrow()
only in debug builds, and is erased in release
builds. Read more
sourcefn tap_borrow_mut_dbg<B>(self, func: impl FnOnce(&mut B)) -> Self where
Self: BorrowMut<B>,
B: ?Sized,
fn tap_borrow_mut_dbg<B>(self, func: impl FnOnce(&mut B)) -> Self where
Self: BorrowMut<B>,
B: ?Sized,
Calls .tap_borrow_mut()
only in debug builds, and is erased in release
builds. Read more
sourcefn tap_ref_dbg<R>(self, func: impl FnOnce(&R)) -> Self where
Self: AsRef<R>,
R: ?Sized,
fn tap_ref_dbg<R>(self, func: impl FnOnce(&R)) -> Self where
Self: AsRef<R>,
R: ?Sized,
Calls .tap_ref()
only in debug builds, and is erased in release
builds. Read more
sourcefn tap_ref_mut_dbg<R>(self, func: impl FnOnce(&mut R)) -> Self where
Self: AsMut<R>,
R: ?Sized,
fn tap_ref_mut_dbg<R>(self, func: impl FnOnce(&mut R)) -> Self where
Self: AsMut<R>,
R: ?Sized,
Calls .tap_ref_mut()
only in debug builds, and is erased in release
builds. Read more