Struct sp_state_machine::ReadOnlyExternalities
source · pub struct ReadOnlyExternalities<'a, H: Hasher, B: 'a + Backend<H>> { /* private fields */ }
Expand description
Simple read-only externalities for any backend.
To be used in test for state inspection. Will panic if something writes to the storage.
Implementations§
source§impl<'a, H: Hasher, B: 'a + Backend<H>> ReadOnlyExternalities<'a, H, B>where
H::Out: Encode,
impl<'a, H: Hasher, B: 'a + Backend<H>> ReadOnlyExternalities<'a, H, B>where
H::Out: Encode,
sourcepub fn execute_with<R>(&mut self, f: impl FnOnce() -> R) -> R
pub fn execute_with<R>(&mut self, f: impl FnOnce() -> R) -> R
Execute the given closure while self
is set as externalities.
Returns the result of the given closure.
Trait Implementations§
source§impl<'a, H: Debug + Hasher, B: Debug + 'a + Backend<H>> Debug for ReadOnlyExternalities<'a, H, B>
impl<'a, H: Debug + Hasher, B: Debug + 'a + Backend<H>> Debug for ReadOnlyExternalities<'a, H, B>
source§impl<'a, H: Hasher, B: 'a + Backend<H>> ExtensionStore for ReadOnlyExternalities<'a, H, B>
impl<'a, H: Hasher, B: 'a + Backend<H>> ExtensionStore for ReadOnlyExternalities<'a, H, B>
source§fn extension_by_type_id(&mut self, _type_id: TypeId) -> Option<&mut dyn Any>
fn extension_by_type_id(&mut self, _type_id: TypeId) -> Option<&mut dyn Any>
Tries to find a registered extension by the given
type_id
and returns it as a &mut dyn Any
. Read moresource§impl<'a, H: Hasher, B: 'a + Backend<H>> Externalities for ReadOnlyExternalities<'a, H, B>where
H::Out: Encode,
impl<'a, H: Hasher, B: 'a + Backend<H>> Externalities for ReadOnlyExternalities<'a, H, B>where
H::Out: Encode,
source§fn set_offchain_storage(&mut self, _key: &[u8], _value: Option<&[u8]>)
fn set_offchain_storage(&mut self, _key: &[u8], _value: Option<&[u8]>)
Write a key value pair to the offchain storage database.
source§fn child_storage(
&mut self,
child_info: &ChildInfo,
key: &[u8],
) -> Option<StorageValue>
fn child_storage( &mut self, child_info: &ChildInfo, key: &[u8], ) -> Option<StorageValue>
Read child runtime storage. Read more
source§fn child_storage_hash(
&mut self,
child_info: &ChildInfo,
key: &[u8],
) -> Option<Vec<u8>>
fn child_storage_hash( &mut self, child_info: &ChildInfo, key: &[u8], ) -> Option<Vec<u8>>
Get child storage value hash. Read more
source§fn next_storage_key(&mut self, key: &[u8]) -> Option<StorageKey>
fn next_storage_key(&mut self, key: &[u8]) -> Option<StorageKey>
Returns the key immediately following the given key, if it exists.
source§fn next_child_storage_key(
&mut self,
child_info: &ChildInfo,
key: &[u8],
) -> Option<StorageKey>
fn next_child_storage_key( &mut self, child_info: &ChildInfo, key: &[u8], ) -> Option<StorageKey>
Returns the key immediately following the given key, if it exists, in child storage.
source§fn place_storage(
&mut self,
_key: StorageKey,
_maybe_value: Option<StorageValue>,
)
fn place_storage( &mut self, _key: StorageKey, _maybe_value: Option<StorageValue>, )
Set or clear a storage entry (
key
) of current contract being called (effective
immediately).source§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.
source§fn kill_child_storage(
&mut self,
_child_info: &ChildInfo,
_maybe_limit: Option<u32>,
_maybe_cursor: Option<&[u8]>,
) -> MultiRemovalResults
fn kill_child_storage( &mut self, _child_info: &ChildInfo, _maybe_limit: Option<u32>, _maybe_cursor: Option<&[u8]>, ) -> MultiRemovalResults
Clear an entire child storage. Read more
source§fn clear_prefix(
&mut self,
_prefix: &[u8],
_maybe_limit: Option<u32>,
_maybe_cursor: Option<&[u8]>,
) -> MultiRemovalResults
fn clear_prefix( &mut self, _prefix: &[u8], _maybe_limit: Option<u32>, _maybe_cursor: Option<&[u8]>, ) -> MultiRemovalResults
Clear storage entries which keys are start with the given prefix. Read more
source§fn clear_child_prefix(
&mut self,
_child_info: &ChildInfo,
_prefix: &[u8],
_maybe_limit: Option<u32>,
_maybe_cursor: Option<&[u8]>,
) -> MultiRemovalResults
fn clear_child_prefix( &mut self, _child_info: &ChildInfo, _prefix: &[u8], _maybe_limit: Option<u32>, _maybe_cursor: Option<&[u8]>, ) -> MultiRemovalResults
Clear child storage entries which keys are start with the given prefix. Read more
source§fn storage_root(&mut self, _state_version: StateVersion) -> Vec<u8> ⓘ
fn storage_root(&mut self, _state_version: StateVersion) -> Vec<u8> ⓘ
Get the trie root of the current storage map. Read more
source§fn child_storage_root(
&mut self,
_child_info: &ChildInfo,
_state_version: StateVersion,
) -> Vec<u8> ⓘ
fn child_storage_root( &mut self, _child_info: &ChildInfo, _state_version: StateVersion, ) -> Vec<u8> ⓘ
Get the trie root of a child storage map. Read more
source§fn storage_start_transaction(&mut self)
fn storage_start_transaction(&mut self)
Start a new nested transaction. Read more
source§fn storage_rollback_transaction(&mut self) -> Result<(), ()>
fn storage_rollback_transaction(&mut self) -> Result<(), ()>
Rollback the last transaction started by
storage_start_transaction
. Read moresource§fn storage_commit_transaction(&mut self) -> Result<(), ()>
fn storage_commit_transaction(&mut self) -> Result<(), ()>
Commit the last transaction started by
storage_start_transaction
. Read moresource§fn wipe(&mut self)
fn wipe(&mut self)
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Benchmarking related functionality and shouldn’t be used anywhere else!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Read more
source§fn commit(&mut self)
fn commit(&mut self)
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Benchmarking related functionality and shouldn’t be used anywhere else!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Read more
source§fn read_write_count(&self) -> (u32, u32, u32, u32)
fn read_write_count(&self) -> (u32, u32, u32, u32)
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Benchmarking related functionality and shouldn’t be used anywhere else!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Read more
source§fn reset_read_write_count(&mut self)
fn reset_read_write_count(&mut self)
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Benchmarking related functionality and shouldn’t be used anywhere else!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Read more
source§fn get_whitelist(&self) -> Vec<TrackedStorageKey>
fn get_whitelist(&self) -> Vec<TrackedStorageKey>
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Benchmarking related functionality and shouldn’t be used anywhere else!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Read more
source§fn set_whitelist(&mut self, _: Vec<TrackedStorageKey>)
fn set_whitelist(&mut self, _: Vec<TrackedStorageKey>)
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Benchmarking related functionality and shouldn’t be used anywhere else!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Read more
source§fn get_read_and_written_keys(&self) -> Vec<(Vec<u8>, u32, u32, bool)>
fn get_read_and_written_keys(&self) -> Vec<(Vec<u8>, u32, u32, bool)>
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Benchmarking related functionality and shouldn’t be used anywhere else!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Read more
§fn set_storage(&mut self, key: Vec<u8>, value: Vec<u8>)
fn set_storage(&mut self, key: Vec<u8>, value: Vec<u8>)
Set storage entry
key
of current contract being called (effective immediately).§fn set_child_storage(
&mut self,
child_info: &ChildInfo,
key: Vec<u8>,
value: Vec<u8>,
)
fn set_child_storage( &mut self, child_info: &ChildInfo, key: Vec<u8>, value: Vec<u8>, )
Set child storage entry
key
of current contract being called (effective immediately).§fn clear_storage(&mut self, key: &[u8])
fn clear_storage(&mut self, key: &[u8])
Clear a storage entry (
key
) of current contract being called (effective immediately).§fn clear_child_storage(&mut self, child_info: &ChildInfo, key: &[u8])
fn clear_child_storage(&mut self, child_info: &ChildInfo, key: &[u8])
Clear a child storage entry (
key
) of current contract being called (effective
immediately).§fn exists_storage(&mut self, key: &[u8]) -> bool
fn exists_storage(&mut self, key: &[u8]) -> bool
Whether a storage entry exists.
§fn exists_child_storage(&mut self, child_info: &ChildInfo, key: &[u8]) -> bool
fn exists_child_storage(&mut self, child_info: &ChildInfo, key: &[u8]) -> bool
Whether a child storage entry exists.
§fn storage_index_transaction(&mut self, _index: u32, _hash: &[u8], _size: u32)
fn storage_index_transaction(&mut self, _index: u32, _hash: &[u8], _size: u32)
Index specified transaction slice and store it.
§fn storage_renew_transaction_index(&mut self, _index: u32, _hash: &[u8])
fn storage_renew_transaction_index(&mut self, _index: u32, _hash: &[u8])
Renew existing piece of transaction storage.
§fn proof_size(&self) -> Option<u32>
fn proof_size(&self) -> Option<u32>
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Benchmarking related functionality and shouldn’t be used anywhere else!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Read more
Auto Trait Implementations§
impl<'a, H, B> Freeze for ReadOnlyExternalities<'a, H, B>
impl<'a, H, B> RefUnwindSafe for ReadOnlyExternalities<'a, H, B>where
B: RefUnwindSafe,
H: RefUnwindSafe,
impl<'a, H, B> Send for ReadOnlyExternalities<'a, H, B>where
B: Sync,
impl<'a, H, B> Sync for ReadOnlyExternalities<'a, H, B>where
B: Sync,
impl<'a, H, B> Unpin for ReadOnlyExternalities<'a, H, B>where
H: Unpin,
impl<'a, H, B> UnwindSafe for ReadOnlyExternalities<'a, H, B>where
B: RefUnwindSafe,
H: UnwindSafe,
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