Struct protobuf::SingularPtrField [−][src]
pub struct SingularPtrField<T> { /* fields omitted */ }
Like Option<Box<T>>
, but keeps the actual element on clear
.
Implementations
impl<T> SingularPtrField<T>
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impl<T> SingularPtrField<T>
[src]pub fn some(value: T) -> SingularPtrField<T>
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Construct SingularPtrField
from given object.
pub fn none() -> SingularPtrField<T>
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Construct an empty SingularPtrField
.
pub fn from_option(option: Option<T>) -> SingularPtrField<T>
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Construct SingularPtrField
from optional.
pub fn is_some(&self) -> bool
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True iff this object contains data.
pub fn is_none(&self) -> bool
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True iff this object contains no data.
pub fn into_option(self) -> Option<T>
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Convert into Option<T>
.
pub fn as_ref<'a>(&'a self) -> Option<&'a T>
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View data as reference option.
pub fn as_mut<'a>(&'a mut self) -> Option<&'a mut T>
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View data as mutable reference option.
pub fn get_ref<'a>(&'a self) -> &'a T
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Get data as reference. Panics if empty.
pub fn get_mut_ref<'a>(&'a mut self) -> &'a mut T
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Get data as mutable reference. Panics if empty.
pub fn unwrap(self) -> T
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Take the data. Panics if empty
pub fn unwrap_or(self, def: T) -> T
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Take the data or return supplied default element if empty.
pub fn unwrap_or_else<F>(self, f: F) -> T where
F: FnOnce() -> T,
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F: FnOnce() -> T,
Take the data or return supplied default element if empty.
pub fn map<U, F>(self, f: F) -> SingularPtrField<U> where
F: FnOnce(T) -> U,
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F: FnOnce(T) -> U,
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>
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View data as iterator.
pub fn mut_iter<'a>(&'a mut self) -> IntoIter<&'a mut T>
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View data as mutable iterator.
pub fn take(&mut self) -> Option<T>
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Take data as option, leaving this object empty.
pub fn clear(&mut self)
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Clear this object, but do not call destructor of underlying data.
impl<T: Default + Clear> SingularPtrField<T>
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impl<T: Default + Clear> SingularPtrField<T>
[src]pub fn unwrap_or_default(self) -> T
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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
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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: Clone> Clone for SingularPtrField<T>
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impl<T: Clone> Clone for SingularPtrField<T>
[src]fn clone(&self) -> SingularPtrField<T>
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pub fn clone_from(&mut self, source: &Self)
1.0.0[src]
impl<T: Debug> Debug for SingularPtrField<T>
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impl<T: Debug> Debug for SingularPtrField<T>
[src]impl<T> Default for SingularPtrField<T>
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impl<T> Default for SingularPtrField<T>
[src]fn default() -> SingularPtrField<T>
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impl<'de, T: Deserialize<'de>> Deserialize<'de> for SingularPtrField<T>
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impl<'de, T: Deserialize<'de>> Deserialize<'de> for SingularPtrField<T>
[src]fn deserialize<D>(
deserializer: D
) -> Result<Self, <D as Deserializer<'de>>::Error> where
D: Deserializer<'de>,
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deserializer: D
) -> Result<Self, <D as Deserializer<'de>>::Error> where
D: Deserializer<'de>,
impl<T: Eq> Eq for SingularPtrField<T>
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impl<T: Eq> Eq for SingularPtrField<T>
[src]impl<T: Hash> Hash for SingularPtrField<T>
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impl<T: Hash> Hash for SingularPtrField<T>
[src]impl<'a, T> IntoIterator for &'a SingularPtrField<T>
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impl<'a, T> IntoIterator for &'a SingularPtrField<T>
[src]impl<T: PartialEq> PartialEq<SingularPtrField<T>> for SingularPtrField<T>
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impl<T: PartialEq> PartialEq<SingularPtrField<T>> for SingularPtrField<T>
[src]impl<T: Serialize> Serialize for SingularPtrField<T>
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impl<T: Serialize> Serialize for SingularPtrField<T>
[src]fn serialize<S>(
&self,
serializer: S
) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error> where
S: Serializer,
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&self,
serializer: S
) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error> where
S: Serializer,
Auto Trait Implementations
impl<T> RefUnwindSafe for SingularPtrField<T> where
T: RefUnwindSafe,
impl<T> RefUnwindSafe for SingularPtrField<T> where
T: RefUnwindSafe,
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,
impl<T> Unpin for SingularPtrField<T>
impl<T> Unpin for SingularPtrField<T>
impl<T> UnwindSafe for SingularPtrField<T> where
T: UnwindSafe,
impl<T> UnwindSafe for SingularPtrField<T> where
T: UnwindSafe,
Blanket Implementations
impl<T> DeserializeOwned for T where
T: for<'de> Deserialize<'de>,
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impl<T> DeserializeOwned for T where
T: for<'de> Deserialize<'de>,
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