[−][src]Struct protobuf::SingularPtrField
Like Option<Box<T>>
, but keeps the actual element on clear
.
Methods
impl<T> SingularPtrField<T>
[src]
impl<T> SingularPtrField<T>
pub fn some(value: T) -> SingularPtrField<T> | [src] |
Construct SingularPtrField
from given object.
pub fn none() -> SingularPtrField<T> | [src] |
Construct an empty SingularPtrField
.
pub fn from_option(option: Option<T>) -> SingularPtrField<T> | [src] |
Construct SingularPtrField
from optional.
pub fn is_some(&self) -> bool | [src] |
True iff this object contains data.
pub fn is_none(&self) -> bool | [src] |
True iff this object contains no data.
pub fn into_option(self) -> Option<T> | [src] |
Convert into Option<T>
.
pub fn as_ref<'a>(&'a self) -> Option<&'a T> | [src] |
View data as reference option.
pub fn as_mut<'a>(&'a mut self) -> Option<&'a mut T> | [src] |
View data as mutable reference option.
pub fn get_ref<'a>(&'a self) -> &'a T | [src] |
Get data as reference. Panics if empty.
pub fn get_mut_ref<'a>(&'a mut self) -> &'a mut T | [src] |
Get data as mutable reference. Panics if empty.
pub fn unwrap(self) -> T | [src] |
Take the data. Panics if empty
pub fn unwrap_or(self, def: T) -> T | [src] |
Take the data or return supplied default element if empty.
pub fn unwrap_or_else<F>(self, f: F) -> T where | [src] |
Take the data or return supplied default element if empty.
pub fn map<U, F>(self, f: F) -> SingularPtrField<U> where | [src] |
Apply given function to contained data to construct another SingularPtrField
.
Returns empty SingularPtrField
if this object is empty.
pub fn iter<'a>(&'a self) -> IntoIter<&'a T> | [src] |
View data as iterator.
pub fn mut_iter<'a>(&'a mut self) -> IntoIter<&'a mut T> | [src] |
View data as mutable iterator.
pub fn take(&mut self) -> Option<T> | [src] |
Take data as option, leaving this object empty.
pub fn clear(&mut self) | [src] |
Clear this object, but do not call destructor of underlying data.
impl<T: Default + Clear> SingularPtrField<T>
[src]
impl<T: Default + Clear> SingularPtrField<T>
pub fn unwrap_or_default(self) -> T | [src] |
Get contained data, consume self. Return default value for type if this is empty.
pub fn set_default<'a>(&'a mut self) -> &'a mut T | [src] |
Initialize this object with default value. This operation can be more efficient then construction of clear element, because it may reuse previously contained object.
Trait Implementations
impl<T: Eq> Eq for SingularPtrField<T>
[src]
impl<T: Eq> Eq for SingularPtrField<T>
impl<T: Clone> Clone for SingularPtrField<T>
[src]
impl<T: Clone> Clone for SingularPtrField<T>
fn clone(&self) -> SingularPtrField<T> | [src] |
fn clone_from(&mut self, source: &Self) | 1.0.0 [src] |
Performs copy-assignment from source
. Read more
impl<T: PartialEq> PartialEq<SingularPtrField<T>> for SingularPtrField<T>
[src]
impl<T: PartialEq> PartialEq<SingularPtrField<T>> for SingularPtrField<T>
fn eq(&self, other: &SingularPtrField<T>) -> bool | [src] |
| 1.0.0 [src] |
This method tests for !=
.
impl<T> Default for SingularPtrField<T>
[src]
impl<T> Default for SingularPtrField<T>
fn default() -> SingularPtrField<T> | [src] |
impl<'a, T> IntoIterator for &'a SingularPtrField<T>
[src]
impl<'a, T> IntoIterator for &'a SingularPtrField<T>
type Item = &'a T
The type of the elements being iterated over.
type IntoIter = IntoIter<&'a T>
Which kind of iterator are we turning this into?
fn into_iter(self) -> IntoIter<&'a T> | [src] |
impl<T: Debug> Debug for SingularPtrField<T>
[src]
impl<T: Debug> Debug for SingularPtrField<T>
impl<T: Hash> Hash for SingularPtrField<T>
[src]
impl<T: Hash> Hash for SingularPtrField<T>
Auto Trait Implementations
impl<T> Send for SingularPtrField<T> where
T: Send,
impl<T> Send for SingularPtrField<T> where
T: Send,
impl<T> Sync for SingularPtrField<T> where
T: Sync,
impl<T> Sync for SingularPtrField<T> where
T: Sync,
Blanket Implementations
impl<T> From for T
[src]
impl<T> From for T
impl<T, U> Into for T where
U: From<T>,
[src]
impl<T, U> Into for T where
U: From<T>,
impl<T> ToOwned for T where
T: Clone,
[src]
impl<T> ToOwned for T where
T: Clone,
impl<T, U> TryFrom for T where
T: From<U>,
[src]
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] |
impl<T> Borrow for T where
T: ?Sized,
[src]
impl<T> Borrow for T where
T: ?Sized,
impl<T> Any for T where
T: 'static + ?Sized,
[src]
impl<T> Any for T where
T: 'static + ?Sized,
fn get_type_id(&self) -> TypeId | [src] |
impl<T> BorrowMut for T where
T: ?Sized,
[src]
impl<T> BorrowMut for T where
T: ?Sized,
fn borrow_mut(&mut self) -> &mut T | [src] |
impl<T, U> TryInto for T where
U: TryFrom<T>,
[src]
impl<T, U> TryInto for T where
U: TryFrom<T>,