Enum sp_rpc::list::ListOrValue
source · pub enum ListOrValue<T> {
List(Vec<T>),
Value(T),
}
Expand description
RPC list or value wrapper.
For some RPCs it’s convenient to call them with either a single value or a whole list of values to get a proper response. In theory you could do a batch query, but it’s:
- Less convenient in client libraries
- If the response value is small, the protocol overhead might be dominant.
Also it’s nice to be able to maintain backward compatibility for methods that were initially taking a value and now we want to expand them to take a list.
Variants§
Implementations§
source§impl<T> ListOrValue<T>
impl<T> ListOrValue<T>
sourcepub fn map<F: Fn(T) -> X, X>(self, f: F) -> ListOrValue<X>
pub fn map<F: Fn(T) -> X, X>(self, f: F) -> ListOrValue<X>
Map every contained value using function F
.
This allows to easily convert all values in any of the variants.
Trait Implementations§
source§impl<T: Clone> Clone for ListOrValue<T>
impl<T: Clone> Clone for ListOrValue<T>
source§fn clone(&self) -> ListOrValue<T>
fn clone(&self) -> ListOrValue<T>
Returns a copy of the value. Read more
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from
source
. Read moresource§impl<T: Debug> Debug for ListOrValue<T>
impl<T: Debug> Debug for ListOrValue<T>
source§impl<'de, T> Deserialize<'de> for ListOrValue<T>where
T: Deserialize<'de>,
impl<'de, T> Deserialize<'de> for ListOrValue<T>where
T: Deserialize<'de>,
source§fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>where
__D: Deserializer<'de>,
fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>where
__D: Deserializer<'de>,
Deserialize this value from the given Serde deserializer. Read more
source§impl<T> From<T> for ListOrValue<T>
impl<T> From<T> for ListOrValue<T>
source§impl<T> From<Vec<T>> for ListOrValue<T>
impl<T> From<Vec<T>> for ListOrValue<T>
source§impl<T: PartialEq> PartialEq for ListOrValue<T>
impl<T: PartialEq> PartialEq for ListOrValue<T>
source§fn eq(&self, other: &ListOrValue<T>) -> bool
fn eq(&self, other: &ListOrValue<T>) -> bool
This method tests for
self
and other
values to be equal, and is used
by ==
.source§impl<T> Serialize for ListOrValue<T>where
T: Serialize,
impl<T> Serialize for ListOrValue<T>where
T: Serialize,
impl<T> StructuralPartialEq for ListOrValue<T>
Auto Trait Implementations§
impl<T> Freeze for ListOrValue<T>where
T: Freeze,
impl<T> RefUnwindSafe for ListOrValue<T>where
T: RefUnwindSafe,
impl<T> Send for ListOrValue<T>where
T: Send,
impl<T> Sync for ListOrValue<T>where
T: Sync,
impl<T> Unpin for ListOrValue<T>where
T: Unpin,
impl<T> UnwindSafe for ListOrValue<T>where
T: UnwindSafe,
Blanket Implementations§
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
source§impl<T> CloneToUninit for Twhere
T: Clone,
impl<T> CloneToUninit for Twhere
T: Clone,
source§default unsafe fn clone_to_uninit(&self, dst: *mut T)
default unsafe fn clone_to_uninit(&self, dst: *mut T)
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clone_to_uninit
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