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Struct pallet_identity::migration::v2::LazyMigrationV1ToV2

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pub struct LazyMigrationV1ToV2<T: Config>(/* private fields */);

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impl<T: Config> SteppedMigration for LazyMigrationV1ToV2<T>

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type Cursor = MigrationState<<T as Config>::AccountId, BoundedVec<u8, <T as Config>::MaxUsernameLength>, BoundedVec<u8, <T as Config>::MaxSuffixLength>>

The cursor type that stores the progress (aka. state) of this migration.
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type Identifier = MigrationId<15>

The unique identifier type of this migration.
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fn id() -> Self::Identifier

The unique identifier of this migration. Read more
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fn step( cursor: Option<Self::Cursor>, meter: &mut WeightMeter, ) -> Result<Option<Self::Cursor>, SteppedMigrationError>

Try to migrate as much as possible with the given weight. Read more
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fn pre_upgrade() -> Result<Vec<u8>, TryRuntimeError>

Hook for testing that is run before the migration is started. Read more
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fn post_upgrade(state: Vec<u8>) -> Result<(), TryRuntimeError>

Hook for testing that is run after the migration is completed. Read more
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fn max_steps() -> Option<u32>

The maximum number of steps that this migration can take. Read more
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fn transactional_step( cursor: Option<Self::Cursor>, meter: &mut WeightMeter, ) -> Result<Option<Self::Cursor>, SteppedMigrationError>

Same as [Self::step], but rolls back pending changes in the error case.

Auto Trait Implementations§

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impl<T> Freeze for LazyMigrationV1ToV2<T>

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impl<T> RefUnwindSafe for LazyMigrationV1ToV2<T>
where T: RefUnwindSafe,

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impl<T> Send for LazyMigrationV1ToV2<T>
where T: Send,

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impl<T> Sync for LazyMigrationV1ToV2<T>
where T: Sync,

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impl<T> Unpin for LazyMigrationV1ToV2<T>
where T: Unpin,

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impl<T> UnwindSafe for LazyMigrationV1ToV2<T>
where T: UnwindSafe,

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CheckedConversion for T

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fn checked_from<T>(t: T) -> Option<Self>
where Self: TryFrom<T>,

Convert from a value of T into an equivalent instance of Option<Self>. Read more
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fn checked_into<T>(self) -> Option<T>
where Self: TryInto<T>,

Consume self to return Some equivalent value of Option<T>. Read more
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impl<T> Conv for T

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fn conv<T>(self) -> T
where Self: Into<T>,

Converts self into T using Into<T>. Read more
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fn fmt_binary(self) -> FmtBinary<Self>
where Self: Binary,

Causes self to use its Binary implementation when Debug-formatted.
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where Self: Display,

Causes self to use its Display implementation when Debug-formatted.
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where Self: LowerExp,

Causes self to use its LowerExp implementation when Debug-formatted.
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fn fmt_lower_hex(self) -> FmtLowerHex<Self>
where Self: LowerHex,

Causes self to use its LowerHex implementation when Debug-formatted.
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fn fmt_octal(self) -> FmtOctal<Self>
where Self: Octal,

Causes self to use its Octal implementation when Debug-formatted.
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fn fmt_pointer(self) -> FmtPointer<Self>
where Self: Pointer,

Causes self to use its Pointer implementation when Debug-formatted.
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fn fmt_upper_exp(self) -> FmtUpperExp<Self>
where Self: UpperExp,

Causes self to use its UpperExp implementation when Debug-formatted.
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fn fmt_upper_hex(self) -> FmtUpperHex<Self>
where Self: UpperHex,

Causes self to use its UpperHex implementation when Debug-formatted.
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fn fmt_list(self) -> FmtList<Self>
where &'a Self: for<'a> IntoIterator,

Formats each item in a sequence. Read more
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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided [Span], returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

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where U: From<T>,

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That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn pipe<R>(self, func: impl FnOnce(Self) -> R) -> R
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Pipes by value. This is generally the method you want to use. Read more
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fn pipe_ref<'a, R>(&'a self, func: impl FnOnce(&'a Self) -> R) -> R
where R: 'a,

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where R: 'a,

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where Self: BorrowMut<B>, B: 'a + ?Sized, R: 'a,

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where Self: AsRef<U>, U: 'a + ?Sized, R: 'a,

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where Self: AsMut<U>, U: 'a + ?Sized, R: 'a,

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where Self: Deref<Target = T>, T: 'a + ?Sized, R: 'a,

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where Self: DerefMut<Target = T> + Deref, T: 'a + ?Sized, R: 'a,

Mutably borrows self, then passes self.deref_mut() into the pipe function.
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const ALIGN: usize = _

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<T> Same for T

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type Output = T

Should always be Self
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impl<T> SaturatedConversion for T

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fn saturated_from<T>(t: T) -> Self
where Self: UniqueSaturatedFrom<T>,

Convert from a value of T into an equivalent instance of Self. Read more
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fn saturated_into<T>(self) -> T
where Self: UniqueSaturatedInto<T>,

Consume self to return an equivalent value of T. Read more
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impl<T> SteppedMigrations for T
where T: SteppedMigration,

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fn len() -> u32

The number of migrations that Self aggregates.
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fn nth_id(n: u32) -> Option<Vec<u8>>

The nth [SteppedMigration::id]. Read more
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fn nth_max_steps(n: u32) -> Option<Option<u32>>

The [SteppedMigration::max_steps] of the nth migration. Read more
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fn nth_step( n: u32, cursor: Option<Vec<u8>>, meter: &mut WeightMeter, ) -> Option<Result<Option<Vec<u8>>, SteppedMigrationError>>

Do a [SteppedMigration::step] on the nth migration. Read more
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fn nth_transactional_step( n: u32, cursor: Option<Vec<u8>>, meter: &mut WeightMeter, ) -> Option<Result<Option<Vec<u8>>, SteppedMigrationError>>

Do a [SteppedMigration::transactional_step] on the nth migration. Read more
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fn nth_pre_upgrade(n: u32) -> Option<Result<Vec<u8>, DispatchError>>

Call the pre-upgrade hooks of the nth migration. Read more
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fn nth_post_upgrade(n: u32, state: Vec<u8>) -> Option<Result<(), DispatchError>>

Call the post-upgrade hooks of the nth migration. Read more
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fn cursor_max_encoded_len() -> usize

The maximal encoded length across all cursors.
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fn identifier_max_encoded_len() -> usize

The maximal encoded length across all identifiers.
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fn integrity_test() -> Result<(), &'static str>

Assert the integrity of the migrations. Read more
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impl<SS, SP> SupersetOf<SS> for SP
where SS: SubsetOf<SP>,

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fn to_subset(&self) -> Option<SS>

The inverse inclusion map: attempts to construct self from the equivalent element of its superset. Read more
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fn is_in_subset(&self) -> bool

Checks if self is actually part of its subset T (and can be converted to it).
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fn to_subset_unchecked(&self) -> SS

Use with care! Same as self.to_subset but without any property checks. Always succeeds.
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The inclusion map: converts self to the equivalent element of its superset.
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fn tap(self, func: impl FnOnce(&Self)) -> Self

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where Self: BorrowMut<B>, B: ?Sized,

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where Self: AsRef<R>, R: ?Sized,

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where Self: AsMut<R>, R: ?Sized,

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where Self: Deref<Target = T>, T: ?Sized,

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where Self: DerefMut<Target = T> + Deref, T: ?Sized,

Mutable access to the Deref::Target of a value. Read more
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fn tap_dbg(self, func: impl FnOnce(&Self)) -> Self

Calls .tap() only in debug builds, and is erased in release builds.
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Calls .tap_mut() only in debug builds, and is erased in release builds.
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where Self: Borrow<B>, B: ?Sized,

Calls .tap_borrow() only in debug builds, and is erased in release builds.
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where Self: AsRef<R>, R: ?Sized,

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where Self: AsMut<R>, R: ?Sized,

Calls .tap_ref_mut() only in debug builds, and is erased in release builds.
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fn tap_deref_dbg<T>(self, func: impl FnOnce(&T)) -> Self
where Self: Deref<Target = T>, T: ?Sized,

Calls .tap_deref() only in debug builds, and is erased in release builds.
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fn tap_deref_mut_dbg<T>(self, func: impl FnOnce(&mut T)) -> Self
where Self: DerefMut<Target = T> + Deref, T: ?Sized,

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fn try_conv<T>(self) -> Result<T, Self::Error>
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