Struct sp_state_machine::Ext [−][src]
pub struct Ext<'a, H, B> where
H: Hasher,
B: 'a + Backend<H>, {
pub id: u16,
// some fields omitted
}
Expand description
Wraps a read-only backend, call executor, and current overlayed changes.
Fields
id: u16
Pseudo-unique id used for tracing.
Implementations
pub fn new(
overlay: &'a mut OverlayedChanges,
storage_transaction_cache: &'a mut StorageTransactionCache<B::Transaction, H>,
backend: &'a B,
extensions: Option<&'a mut Extensions>
) -> Self
pub fn new(
overlay: &'a mut OverlayedChanges,
storage_transaction_cache: &'a mut StorageTransactionCache<B::Transaction, H>,
backend: &'a B,
extensions: Option<&'a mut Extensions>
) -> Self
Create a new Ext
from overlayed changes and read-only backend
Trait Implementations
Renew existing piece of data storage.
Write a key value pair to the offchain storage database.
Read child runtime storage. Read more
Get child storage value hash. Read more
Whether a child storage entry exists.
Returns the key immediately following the given key, if it exists.
Returns the key immediately following the given key, if it exists, in child storage.
Set or clear a storage entry (key
) of current contract being called (effective
immediately). Read more
fn place_child_storage(
&mut self,
child_info: &ChildInfo,
key: StorageKey,
value: Option<StorageValue>
)
fn place_child_storage(
&mut self,
child_info: &ChildInfo,
key: StorageKey,
value: Option<StorageValue>
)
Set or clear a child storage entry.
Clear an entire child storage. Read more
Clear storage entries which keys are start with the given prefix. Read more
Clear child storage entries which keys are start with the given prefix. Read more
Get the trie root of the current storage map. Read more
Get the trie root of a child storage map. Read more
Index specified transaction slice and store it.
Start a new nested transaction. Read more
Rollback the last transaction started by storage_start_transaction
. Read more
Commit the last transaction started by storage_start_transaction
. Read more
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Benchmarking related functionality and shouldn’t be used anywhere else! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Read more
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Benchmarking related functionality and shouldn’t be used anywhere else! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Read more
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Benchmarking related functionality and shouldn’t be used anywhere else! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Read more
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Benchmarking related functionality and shouldn’t be used anywhere else! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Read more
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Benchmarking related functionality and shouldn’t be used anywhere else! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Read more
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Benchmarking related functionality and shouldn’t be used anywhere else! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Read more
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Benchmarking related functionality and shouldn’t be used anywhere else! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Read more
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Benchmarking related functionality and shouldn’t be used anywhere else! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Read more
Set storage entry key
of current contract being called (effective immediately).
Set child storage entry key
of current contract being called (effective immediately).
Clear a storage entry (key
) of current contract being called (effective immediately).
Auto Trait Implementations
impl<'a, H, B> !RefUnwindSafe for Ext<'a, H, B>
impl<'a, H, B> !UnwindSafe for Ext<'a, H, B>
Blanket Implementations
Mutably borrows from an owned value. Read more
Convert Box<dyn Trait>
(where Trait: Downcast
) to Box<dyn Any>
. Box<dyn Any>
can
then be further downcast
into Box<ConcreteType>
where ConcreteType
implements Trait
. Read more
Convert Rc<Trait>
(where Trait: Downcast
) to Rc<Any>
. Rc<Any>
can then be
further downcast
into Rc<ConcreteType>
where ConcreteType
implements Trait
. Read more
Convert &Trait
(where Trait: Downcast
) to &Any
. This is needed since Rust cannot
generate &Any
’s vtable from &Trait
’s. Read more
Convert &mut Trait
(where Trait: Downcast
) to &Any
. This is needed since Rust cannot
generate &mut Any
’s vtable from &mut Trait
’s. Read more
Causes self
to use its Binary
implementation when Debug
-formatted.
Causes self
to use its Display
implementation when
Debug
-formatted. Read more
Causes self
to use its LowerExp
implementation when
Debug
-formatted. Read more
Causes self
to use its LowerHex
implementation when
Debug
-formatted. Read more
Causes self
to use its Octal
implementation when Debug
-formatted.
Causes self
to use its Pointer
implementation when
Debug
-formatted. Read more
Causes self
to use its UpperExp
implementation when
Debug
-formatted. Read more
Causes self
to use its UpperHex
implementation when
Debug
-formatted. Read more
Pipes by value. This is generally the method you want to use. Read more
Borrows self
and passes that borrow into the pipe function. Read more
Mutably borrows self
and passes that borrow into the pipe function. Read more
Borrows self
, then passes self.borrow()
into the pipe function. Read more
Mutably borrows self
, then passes self.borrow_mut()
into the pipe
function. Read more
Borrows self
, then passes self.as_ref()
into the pipe function.
Mutably borrows self
, then passes self.as_mut()
into the pipe
function. Read more
Borrows self
, then passes self.deref()
into the pipe function.
fn pipe_as_ref<'a, T, R>(&'a self, func: impl FnOnce(&'a T) -> R) -> R where
Self: AsRef<T>,
T: 'a,
R: 'a,
fn pipe_as_ref<'a, T, R>(&'a self, func: impl FnOnce(&'a T) -> R) -> R where
Self: AsRef<T>,
T: 'a,
R: 'a,
Pipes a trait borrow into a function that cannot normally be called in suffix position. Read more
fn pipe_borrow<'a, T, R>(&'a self, func: impl FnOnce(&'a T) -> R) -> R where
Self: Borrow<T>,
T: 'a,
R: 'a,
fn pipe_borrow<'a, T, R>(&'a self, func: impl FnOnce(&'a T) -> R) -> R where
Self: Borrow<T>,
T: 'a,
R: 'a,
Pipes a trait borrow into a function that cannot normally be called in suffix position. Read more
fn pipe_deref<'a, R>(&'a self, func: impl FnOnce(&'a Self::Target) -> R) -> R where
Self: Deref,
R: 'a,
fn pipe_deref<'a, R>(&'a self, func: impl FnOnce(&'a Self::Target) -> R) -> R where
Self: Deref,
R: 'a,
Pipes a dereference into a function that cannot normally be called in suffix position. Read more
Pipes a reference into a function that cannot ordinarily be called in suffix position. Read more
Immutable access to the Borrow<B>
of a value. Read more
Mutable access to the BorrowMut<B>
of a value. Read more
Immutable access to the AsRef<R>
view of a value. Read more
Mutable access to the AsMut<R>
view of a value. Read more
Immutable access to the Deref::Target
of a value. Read more
Mutable access to the Deref::Target
of a value. Read more
Calls .tap()
only in debug builds, and is erased in release builds.
Calls .tap_mut()
only in debug builds, and is erased in release
builds. Read more
Calls .tap_borrow()
only in debug builds, and is erased in release
builds. Read more
Calls .tap_borrow_mut()
only in debug builds, and is erased in release
builds. Read more
Calls .tap_ref()
only in debug builds, and is erased in release
builds. Read more
Calls .tap_ref_mut()
only in debug builds, and is erased in release
builds. Read more
Calls .tap_deref()
only in debug builds, and is erased in release
builds. Read more
Provides immutable access to the reference for inspection.
Calls tap_ref
in debug builds, and does nothing in release builds.
Provides mutable access to the reference for modification.
Calls tap_ref_mut
in debug builds, and does nothing in release builds.
Provides immutable access to the borrow for inspection. Read more
Calls tap_borrow
in debug builds, and does nothing in release builds.
fn tap_borrow_mut<F, R>(self, func: F) -> Self where
Self: BorrowMut<T>,
F: FnOnce(&mut T) -> R,
fn tap_borrow_mut<F, R>(self, func: F) -> Self where
Self: BorrowMut<T>,
F: FnOnce(&mut T) -> R,
Provides mutable access to the borrow for modification.
Immutably dereferences self
for inspection.
fn tap_deref_dbg<F, R>(self, func: F) -> Self where
Self: Deref,
F: FnOnce(&Self::Target) -> R,
fn tap_deref_dbg<F, R>(self, func: F) -> Self where
Self: Deref,
F: FnOnce(&Self::Target) -> R,
Calls tap_deref
in debug builds, and does nothing in release builds.
fn tap_deref_mut<F, R>(self, func: F) -> Self where
Self: DerefMut,
F: FnOnce(&mut Self::Target) -> R,
fn tap_deref_mut<F, R>(self, func: F) -> Self where
Self: DerefMut,
F: FnOnce(&mut Self::Target) -> R,
Mutably dereferences self
for modification.
The counterpart to unchecked_from
.
Attaches the provided Subscriber
to this type, returning a
WithDispatch
wrapper. Read more
Attaches the current default Subscriber
to this type, returning a
WithDispatch
wrapper. Read more