pub trait Action: Sized {
type Target;
// Required methods
fn target(&self) -> Self::Target;
fn len(&self) -> u32;
// Provided methods
fn is_empty(&self) -> bool { ... }
fn modify<T, S, F, R, E>(self, f: F) -> Result<R, E>
where F: FnOnce(Self, &mut S) -> Result<R, E>,
<Self::Target as Associated<T>>::Value: TryInto<S>,
S: Into<<Self::Target as Associated<T>>::Value>,
E: From<ActionExecutionError> + From<NonceError>,
Self::Target: StorageRef<T> { ... }
fn view<T, S, F, R, E>(self, f: F) -> Result<R, E>
where F: FnOnce(Self, S) -> Result<R, E>,
<Self::Target as Associated<T>>::Value: TryInto<S>,
S: Into<<Self::Target as Associated<T>>::Value>,
E: From<ActionExecutionError> + From<NonceError>,
Self::Target: StorageRef<T> { ... }
fn modify_removable<T, S, F, R, E>(self, f: F) -> Result<R, E>
where F: FnOnce(Self, &mut Option<S>) -> Result<R, E>,
<Self::Target as Associated<T>>::Value: TryInto<S>,
S: Into<<Self::Target as Associated<T>>::Value>,
E: From<ActionExecutionError> + From<NonceError>,
Self::Target: StorageRef<T> { ... }
fn multi_signed<T, S, SI>(
self,
signatures: SI
) -> MultiSignedAction<T, Self, S, SI::IntoIter>
where T: Types,
S: Signature,
SI: IntoIterator,
SI::IntoIter: FusedIterator<Item = SignatureWithNonce<T::BlockNumber, S>> { ... }
}Expand description
Describes an action which can be performed on some Target.
Required Associated Types§
Required Methods§
Provided Methods§
sourcefn modify<T, S, F, R, E>(self, f: F) -> Result<R, E>where
F: FnOnce(Self, &mut S) -> Result<R, E>,
<Self::Target as Associated<T>>::Value: TryInto<S>,
S: Into<<Self::Target as Associated<T>>::Value>,
E: From<ActionExecutionError> + From<NonceError>,
Self::Target: StorageRef<T>,
fn modify<T, S, F, R, E>(self, f: F) -> Result<R, E>where F: FnOnce(Self, &mut S) -> Result<R, E>, <Self::Target as Associated<T>>::Value: TryInto<S>, S: Into<<Self::Target as Associated<T>>::Value>, E: From<ActionExecutionError> + From<NonceError>, Self::Target: StorageRef<T>,
Calls supplied function accepting an action along with a mutable reference to the value associated with the target.
sourcefn view<T, S, F, R, E>(self, f: F) -> Result<R, E>where
F: FnOnce(Self, S) -> Result<R, E>,
<Self::Target as Associated<T>>::Value: TryInto<S>,
S: Into<<Self::Target as Associated<T>>::Value>,
E: From<ActionExecutionError> + From<NonceError>,
Self::Target: StorageRef<T>,
fn view<T, S, F, R, E>(self, f: F) -> Result<R, E>where F: FnOnce(Self, S) -> Result<R, E>, <Self::Target as Associated<T>>::Value: TryInto<S>, S: Into<<Self::Target as Associated<T>>::Value>, E: From<ActionExecutionError> + From<NonceError>, Self::Target: StorageRef<T>,
Calls supplied function accepting an action along with a value associated with the target.
sourcefn modify_removable<T, S, F, R, E>(self, f: F) -> Result<R, E>where
F: FnOnce(Self, &mut Option<S>) -> Result<R, E>,
<Self::Target as Associated<T>>::Value: TryInto<S>,
S: Into<<Self::Target as Associated<T>>::Value>,
E: From<ActionExecutionError> + From<NonceError>,
Self::Target: StorageRef<T>,
fn modify_removable<T, S, F, R, E>(self, f: F) -> Result<R, E>where F: FnOnce(Self, &mut Option<S>) -> Result<R, E>, <Self::Target as Associated<T>>::Value: TryInto<S>, S: Into<<Self::Target as Associated<T>>::Value>, E: From<ActionExecutionError> + From<NonceError>, Self::Target: StorageRef<T>,
Calls supplied function accepting an action along with a mutable reference
to the option possibly containing a value associated with the target.
Modifying supplied Option<_> to None will lead to the value removal.
sourcefn multi_signed<T, S, SI>(
self,
signatures: SI
) -> MultiSignedAction<T, Self, S, SI::IntoIter>where
T: Types,
S: Signature,
SI: IntoIterator,
SI::IntoIter: FusedIterator<Item = SignatureWithNonce<T::BlockNumber, S>>,
fn multi_signed<T, S, SI>( self, signatures: SI ) -> MultiSignedAction<T, Self, S, SI::IntoIter>where T: Types, S: Signature, SI: IntoIterator, SI::IntoIter: FusedIterator<Item = SignatureWithNonce<T::BlockNumber, S>>,
Combines underlying action with the provided signatures.