Struct fuel_storage::StorageMut

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pub struct StorageMut<'a, T: 'a + ?Sized, Type: Mappable>(_, _);
Expand description

The wrapper around the storage that supports methods from StorageInspect and StorageMutate.

Implementations§

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impl<'a, T: StorageInspect<Type>, Type: Mappable> StorageMut<'a, T, Type>

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pub fn get(
self,
key: &Type::Key
) -> Result<Option<Cow<'a, Type::OwnedValue>>, T::Error>

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pub fn contains_key(self, key: &Type::Key) -> Result<bool, T::Error>

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impl<'a, T: StorageMutate<Type>, Type: Mappable> StorageMut<'a, T, Type>

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pub fn insert(
self,
key: &Type::Key,
value: &Type::Value
) -> Result<Option<Type::OwnedValue>, T::Error>

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pub fn remove(
self,
key: &Type::Key
) -> Result<Option<Type::OwnedValue>, T::Error>

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impl<'a, T, Type: Mappable> StorageMut<'a, T, Type>

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pub fn root<Key>(self, key: &Key) -> Result<MerkleRoot, T::Error>where
T: MerkleRootStorage<Key, Type>,

Auto Trait Implementations§

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impl<'a, T: ?Sized, Type> RefUnwindSafe for StorageMut<'a, T, Type>where
T: RefUnwindSafe,
Type: RefUnwindSafe,

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impl<'a, T: ?Sized, Type> Send for StorageMut<'a, T, Type>where
T: Send,
Type: Send,

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impl<'a, T: ?Sized, Type> Sync for StorageMut<'a, T, Type>where
T: Sync,
Type: Sync,

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impl<'a, T: ?Sized, Type> Unpin for StorageMut<'a, T, Type>where
Type: Unpin,

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impl<'a, T, Type> !UnwindSafe for StorageMut<'a, T, Type>

Blanket Implementations§

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impl<T> Any for Twhere
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 Twhere
T: ?Sized,

const: unstable · source§

fn borrow(&self) -> &T

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

const: unstable · source§

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

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

const: unstable · source§

fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for Twhere
U: From<T>,

const: unstable · source§

fn into(self) -> U

Calls U::from(self).

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

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impl<T> StorageAsMut for T

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fn storage<Type>(&mut self) -> StorageMut<'_, Self, Type>where
Type: Mappable,

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fn storage_as_mut<Type>(&mut self) -> StorageMut<'_, Self, Type>where
Type: Mappable,

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impl<T> StorageAsRef for T

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fn storage<Type>(&self) -> StorageRef<'_, Self, Type>where
Type: Mappable,

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fn storage_as_ref<Type>(&self) -> StorageRef<'_, Self, Type>where
Type: Mappable,

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impl<T, U> TryFrom<U> for Twhere
U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
const: unstable · source§

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for Twhere
U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
const: unstable · source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.