Struct mysql_common::constants::CursorType
source · pub struct CursorType { /* private fields */ }
Expand description
Mysql cursor type.
Implementations§
source§impl CursorType
impl CursorType
pub const CURSOR_TYPE_NO_CURSOR: Self = _
pub const CURSOR_TYPE_READ_ONLY: Self = _
pub const CURSOR_TYPE_FOR_UPDATE: Self = _
pub const CURSOR_TYPE_SCROLLABLE: Self = _
sourcepub const fn from_bits(bits: u8) -> Option<Self>
pub const fn from_bits(bits: u8) -> Option<Self>
Convert from underlying bit representation, unless that representation contains bits that do not correspond to a flag.
sourcepub const fn from_bits_truncate(bits: u8) -> Self
pub const fn from_bits_truncate(bits: u8) -> Self
Convert from underlying bit representation, dropping any bits that do not correspond to flags.
sourcepub const unsafe fn from_bits_unchecked(bits: u8) -> Self
pub const unsafe fn from_bits_unchecked(bits: u8) -> Self
Convert from underlying bit representation, preserving all bits (even those not corresponding to a defined flag).
Safety
The caller of the bitflags!
macro can chose to allow or
disallow extra bits for their bitflags type.
The caller of from_bits_unchecked()
has to ensure that
all bits correspond to a defined flag or that extra bits
are valid for this bitflags type.
sourcepub const fn intersects(&self, other: Self) -> bool
pub const fn intersects(&self, other: Self) -> bool
Returns true
if there are flags common to both self
and other
.
sourcepub const fn contains(&self, other: Self) -> bool
pub const fn contains(&self, other: Self) -> bool
Returns true
if all of the flags in other
are contained within self
.
sourcepub fn set(&mut self, other: Self, value: bool)
pub fn set(&mut self, other: Self, value: bool)
Inserts or removes the specified flags depending on the passed value.
sourcepub const fn intersection(self, other: Self) -> Self
pub const fn intersection(self, other: Self) -> Self
Returns the intersection between the flags in self
and
other
.
Specifically, the returned set contains only the flags which are
present in both self
and other
.
This is equivalent to using the &
operator (e.g.
ops::BitAnd
), as in flags & other
.
sourcepub const fn union(self, other: Self) -> Self
pub const fn union(self, other: Self) -> Self
Returns the union of between the flags in self
and other
.
Specifically, the returned set contains all flags which are
present in either self
or other
, including any which are
present in both (see Self::symmetric_difference
if that
is undesirable).
This is equivalent to using the |
operator (e.g.
ops::BitOr
), as in flags | other
.
sourcepub const fn difference(self, other: Self) -> Self
pub const fn difference(self, other: Self) -> Self
Returns the difference between the flags in self
and other
.
Specifically, the returned set contains all flags present in
self
, except for the ones present in other
.
It is also conceptually equivalent to the “bit-clear” operation:
flags & !other
(and this syntax is also supported).
This is equivalent to using the -
operator (e.g.
ops::Sub
), as in flags - other
.
sourcepub const fn symmetric_difference(self, other: Self) -> Self
pub const fn symmetric_difference(self, other: Self) -> Self
Returns the symmetric difference between the flags
in self
and other
.
Specifically, the returned set contains the flags present which
are present in self
or other
, but that are not present in
both. Equivalently, it contains the flags present in exactly
one of the sets self
and other
.
This is equivalent to using the ^
operator (e.g.
ops::BitXor
), as in flags ^ other
.
sourcepub const fn complement(self) -> Self
pub const fn complement(self) -> Self
Returns the complement of this set of flags.
Specifically, the returned set contains all the flags which are
not set in self
, but which are allowed for this type.
Alternatively, it can be thought of as the set difference
between Self::all()
and self
(e.g. Self::all() - self
)
This is equivalent to using the !
operator (e.g.
ops::Not
), as in !flags
.
Trait Implementations§
source§impl Binary for CursorType
impl Binary for CursorType
source§impl BitAnd<CursorType> for CursorType
impl BitAnd<CursorType> for CursorType
source§impl BitAndAssign<CursorType> for CursorType
impl BitAndAssign<CursorType> for CursorType
source§fn bitand_assign(&mut self, other: Self)
fn bitand_assign(&mut self, other: Self)
Disables all flags disabled in the set.
source§impl BitOr<CursorType> for CursorType
impl BitOr<CursorType> for CursorType
source§fn bitor(self, other: CursorType) -> Self
fn bitor(self, other: CursorType) -> Self
Returns the union of the two sets of flags.
§type Output = CursorType
type Output = CursorType
|
operator.source§impl BitOrAssign<CursorType> for CursorType
impl BitOrAssign<CursorType> for CursorType
source§fn bitor_assign(&mut self, other: Self)
fn bitor_assign(&mut self, other: Self)
Adds the set of flags.
source§impl BitXor<CursorType> for CursorType
impl BitXor<CursorType> for CursorType
source§impl BitXorAssign<CursorType> for CursorType
impl BitXorAssign<CursorType> for CursorType
source§fn bitxor_assign(&mut self, other: Self)
fn bitxor_assign(&mut self, other: Self)
Toggles the set of flags.
source§impl Bitflags for CursorType
impl Bitflags for CursorType
type Repr = u8
fn empty() -> Self
fn all() -> Self
fn bits(&self) -> Self::Repr
fn from_bits(bits: Self::Repr) -> Option<Self>
fn from_bits_truncate(bits: Self::Repr) -> Self
source§unsafe fn from_bits_unchecked(bits: Self::Repr) -> Self
unsafe fn from_bits_unchecked(bits: Self::Repr) -> Self
fn is_empty(&self) -> bool
fn is_all(&self) -> bool
fn intersects(&self, other: Self) -> bool
fn contains(&self, other: Self) -> bool
fn insert(&mut self, other: Self)
fn remove(&mut self, other: Self)
fn toggle(&mut self, other: Self)
fn set(&mut self, other: Self, value: bool)
source§impl Clone for CursorType
impl Clone for CursorType
source§fn clone(&self) -> CursorType
fn clone(&self) -> CursorType
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read moresource§impl Debug for CursorType
impl Debug for CursorType
source§impl Default for CursorType
impl Default for CursorType
source§fn default() -> CursorType
fn default() -> CursorType
source§impl Extend<CursorType> for CursorType
impl Extend<CursorType> for CursorType
source§fn extend<T: IntoIterator<Item = Self>>(&mut self, iterator: T)
fn extend<T: IntoIterator<Item = Self>>(&mut self, iterator: T)
source§fn extend_one(&mut self, item: A)
fn extend_one(&mut self, item: A)
extend_one
)source§fn extend_reserve(&mut self, additional: usize)
fn extend_reserve(&mut self, additional: usize)
extend_one
)source§impl From<CursorType> for u8
impl From<CursorType> for u8
source§fn from(val: CursorType) -> u8
fn from(val: CursorType) -> u8
source§impl FromIterator<CursorType> for CursorType
impl FromIterator<CursorType> for CursorType
source§fn from_iter<T: IntoIterator<Item = Self>>(iterator: T) -> Self
fn from_iter<T: IntoIterator<Item = Self>>(iterator: T) -> Self
source§impl Hash for CursorType
impl Hash for CursorType
source§impl LowerHex for CursorType
impl LowerHex for CursorType
source§impl Not for CursorType
impl Not for CursorType
source§impl Octal for CursorType
impl Octal for CursorType
source§impl Ord for CursorType
impl Ord for CursorType
source§fn cmp(&self, other: &CursorType) -> Ordering
fn cmp(&self, other: &CursorType) -> Ordering
1.21.0 · source§fn max(self, other: Self) -> Selfwhere
Self: Sized,
fn max(self, other: Self) -> Selfwhere
Self: Sized,
source§impl PartialEq<CursorType> for CursorType
impl PartialEq<CursorType> for CursorType
source§fn eq(&self, other: &CursorType) -> bool
fn eq(&self, other: &CursorType) -> bool
source§impl PartialOrd<CursorType> for CursorType
impl PartialOrd<CursorType> for CursorType
source§fn partial_cmp(&self, other: &CursorType) -> Option<Ordering>
fn partial_cmp(&self, other: &CursorType) -> Option<Ordering>
1.0.0 · source§fn le(&self, other: &Rhs) -> bool
fn le(&self, other: &Rhs) -> bool
self
and other
) and is used by the <=
operator. Read moresource§impl Sub<CursorType> for CursorType
impl Sub<CursorType> for CursorType
source§impl SubAssign<CursorType> for CursorType
impl SubAssign<CursorType> for CursorType
source§fn sub_assign(&mut self, other: Self)
fn sub_assign(&mut self, other: Self)
Disables all flags enabled in the set.
source§impl TryFrom<u8> for CursorType
impl TryFrom<u8> for CursorType
§type Error = UnknownCursorType
type Error = UnknownCursorType
source§fn try_from(val: u8) -> Result<CursorType, UnknownCursorType>
fn try_from(val: u8) -> Result<CursorType, UnknownCursorType>
source§impl UpperHex for CursorType
impl UpperHex for CursorType
impl Copy for CursorType
impl Eq for CursorType
impl StructuralEq for CursorType
impl StructuralPartialEq for CursorType
Auto Trait Implementations§
impl RefUnwindSafe for CursorType
impl Send for CursorType
impl Sync for CursorType
impl Unpin for CursorType
impl UnwindSafe for CursorType
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impl<T> Conv for T
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impl<T> FmtForward for T
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