Struct frame_support::traits::StorageVersion
source · pub struct StorageVersion(_);
Expand description
The storage version of a pallet.
Each storage version of a pallet is stored in the state under a fixed key. See
STORAGE_VERSION_STORAGE_KEY_POSTFIX
for how this key is built.
Implementations
sourceimpl StorageVersion
impl StorageVersion
sourcepub fn storage_key<P: PalletInfoAccess>() -> [u8; 32]
pub fn storage_key<P: PalletInfoAccess>() -> [u8; 32]
Returns the storage key for a storage version.
See STORAGE_VERSION_STORAGE_KEY_POSTFIX
on how this key is built.
sourcepub fn put<P: PalletInfoAccess>(&self)
pub fn put<P: PalletInfoAccess>(&self)
Put this storage version for the given pallet into the storage.
It will use the storage key that is associated with the given Pallet
.
Panics
This function will panic iff Pallet
can not be found by PalletInfo
.
In a runtime that is put together using
construct_runtime!
this should never happen.
It will also panic if this function isn’t executed in an externalities provided environment.
sourcepub fn get<P: PalletInfoAccess>() -> Self
pub fn get<P: PalletInfoAccess>() -> Self
Get the storage version of the given pallet from the storage.
It will use the storage key that is associated with the given Pallet
.
Panics
This function will panic iff Pallet
can not be found by PalletInfo
.
In a runtime that is put together using
construct_runtime!
this should never happen.
It will also panic if this function isn’t executed in an externalities provided environment.
Trait Implementations
sourceimpl Clone for StorageVersion
impl Clone for StorageVersion
sourcefn clone(&self) -> StorageVersion
fn clone(&self) -> StorageVersion
1.0.0 · sourcefn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read moresourceimpl Debug for StorageVersion
impl Debug for StorageVersion
sourceimpl Decode for StorageVersion
impl Decode for StorageVersion
sourcefn decode<__CodecInputEdqy: Input>(
__codec_input_edqy: &mut __CodecInputEdqy
) -> Result<Self, Error>
fn decode<__CodecInputEdqy: Input>(
__codec_input_edqy: &mut __CodecInputEdqy
) -> Result<Self, Error>
fn skip<I>(input: &mut I) -> Result<(), Error>where
I: Input,
fn skip<I>(input: &mut I) -> Result<(), Error>where
I: Input,
fn encoded_fixed_size() -> Option<usize>
fn encoded_fixed_size() -> Option<usize>
sourceimpl Default for StorageVersion
impl Default for StorageVersion
sourcefn default() -> StorageVersion
fn default() -> StorageVersion
sourceimpl Encode for StorageVersion
impl Encode for StorageVersion
sourcefn encode_to<__CodecOutputEdqy: Output + ?Sized>(
&self,
__codec_dest_edqy: &mut __CodecOutputEdqy
)
fn encode_to<__CodecOutputEdqy: Output + ?Sized>(
&self,
__codec_dest_edqy: &mut __CodecOutputEdqy
)
sourcefn using_encoded<R, F: FnOnce(&[u8]) -> R>(&self, f: F) -> R
fn using_encoded<R, F: FnOnce(&[u8]) -> R>(&self, f: F) -> R
fn encoded_size(&self) -> usize
fn encoded_size(&self) -> usize
sourceimpl Ord for StorageVersion
impl Ord for StorageVersion
sourcefn cmp(&self, other: &StorageVersion) -> Ordering
fn cmp(&self, other: &StorageVersion) -> Ordering
1.21.0 · sourcefn max(self, other: Self) -> Selfwhere
Self: Sized,
fn max(self, other: Self) -> Selfwhere
Self: Sized,
1.21.0 · sourcefn min(self, other: Self) -> Selfwhere
Self: Sized,
fn min(self, other: Self) -> Selfwhere
Self: Sized,
1.50.0 · sourcefn clamp(self, min: Self, max: Self) -> Selfwhere
Self: Sized + PartialOrd<Self>,
fn clamp(self, min: Self, max: Self) -> Selfwhere
Self: Sized + PartialOrd<Self>,
sourceimpl PartialEq<StorageVersion> for StorageVersion
impl PartialEq<StorageVersion> for StorageVersion
sourcefn eq(&self, other: &StorageVersion) -> bool
fn eq(&self, other: &StorageVersion) -> bool
sourceimpl PartialOrd<StorageVersion> for StorageVersion
impl PartialOrd<StorageVersion> for StorageVersion
sourcefn partial_cmp(&self, other: &StorageVersion) -> Option<Ordering>
fn partial_cmp(&self, other: &StorageVersion) -> Option<Ordering>
1.0.0 · sourcefn le(&self, other: &Rhs) -> bool
fn le(&self, other: &Rhs) -> bool
self
and other
) and is used by the <=
operator. Read moresourceimpl PartialOrd<u16> for StorageVersion
impl PartialOrd<u16> for StorageVersion
sourcefn partial_cmp(&self, other: &u16) -> Option<Ordering>
fn partial_cmp(&self, other: &u16) -> Option<Ordering>
1.0.0 · sourcefn le(&self, other: &Rhs) -> bool
fn le(&self, other: &Rhs) -> bool
self
and other
) and is used by the <=
operator. Read moreimpl Copy for StorageVersion
impl EncodeLike<StorageVersion> for StorageVersion
impl Eq for StorageVersion
impl StructuralEq for StorageVersion
impl StructuralPartialEq for StorageVersion
Auto Trait Implementations
impl RefUnwindSafe for StorageVersion
impl Send for StorageVersion
impl Sync for StorageVersion
impl Unpin for StorageVersion
impl UnwindSafe for StorageVersion
Blanket Implementations
sourceimpl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
sourceimpl<T> CheckedConversion for T
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fn checked_from<T>(t: T) -> Option<Self>where
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impl<T> DecodeAll for Twhere
T: Decode,
impl<T> DecodeAll for Twhere
T: Decode,
fn decode_all(input: &mut &[u8]) -> Result<T, Error>
fn decode_all(input: &mut &[u8]) -> Result<T, Error>
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and consume all of the given input data. Read moreimpl<T> DecodeLimit for Twhere
T: Decode,
impl<T> DecodeLimit for Twhere
T: Decode,
fn decode_all_with_depth_limit(limit: u32, input: &mut &[u8]) -> Result<T, Error>
fn decode_all_with_depth_limit(limit: u32, input: &mut &[u8]) -> Result<T, Error>
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&Trait
(where Trait: Downcast
) to &Any
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fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
&mut Trait
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and return true
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