Struct odra_core :: Mapping Copy item path

impl<K: ToBytes, V: FromBytes + CLTyped> Mapping<K, V>

pub fn get(&self, key: &K) -> Option<V>

Retrieves the value associated with the given key.

Returns an Option<V> representing the value associated with the key, or None if the key is not found.

impl<K: ToBytes, V: FromBytes + CLTyped + Default> Mapping<K, V>

pub fn get_or_default(&self, key: &K) -> V

Retrieves the value associated with the given key from the mapping. If the key does not exist, returns the default value of type V.

impl<K: ToBytes, V: ToBytes + CLTyped> Mapping<K, V>

pub fn set(&mut self, key: &K, value: V)

Sets the value associated with the given key in the mapping.

impl<K: ToBytes, V: Module> Mapping<K, V>

pub fn module(&self, key: &K) -> SubModule<V>

Retrieves the module associated with the given key.

A SubModule instance containing the module associated with the key.

impl<K: ToBytes, V: ToBytes + FromBytes + CLTyped + OverflowingAdd + Default> Mapping<K, V>

pub fn add(&mut self, key: &K, value: V)

Utility function that gets the current value and adds the passed value and sets the new value to the storage.

If the operation fails due to overflow, the currently executing contract reverts.

impl<K: ToBytes, V: ToBytes + FromBytes + CLTyped + OverflowingSub + Default + Debug + PartialOrd> Mapping<K, V>

pub fn subtract(&mut self, key: &K, value: V)

Utility function that gets the current value and subtracts the passed value and sets the new value to the storage.

If the operation fails due to overflow, the currently executing contract reverts.

Trait Implementations§

impl<K: ToBytes, V> ModuleComponent for Mapping<K, V>

fn instance(env: Rc<ContractEnv>, index: u8) -> Self

Creates a new instance of Mapping with the given environment and index.

impl<K: ToBytes, V> ModulePrimitive for Mapping<K, V>

Auto Trait Implementations§

impl<K, V> !UnwindSafe for Mapping<K, V>

Blanket Implementations§

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

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T
where T: ?Sized,

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T
where T: ?Sized,

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

Mutably borrows from an owned value. Read more

impl<T> Conv for T

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

Converts self into a target type. Read more

impl<T> FmtForward for T

fn fmt_binary(self) -> FmtBinary<Self>
where Self: Binary,

Causes self to use its Binary implementation when Debug-formatted.

fn fmt_display(self) -> FmtDisplay<Self>
where Self: Display,

Causes self to use its Display implementation when Debug-formatted.

fn fmt_lower_exp(self) -> FmtLowerExp<Self>
where Self: LowerExp,

Causes self to use its LowerExp implementation when Debug-formatted.

fn fmt_lower_hex(self) -> FmtLowerHex<Self>
where Self: LowerHex,

Causes self to use its LowerHex implementation when Debug-formatted.

fn fmt_octal(self) -> FmtOctal<Self>
where Self: Octal,

Causes self to use its Octal implementation when Debug-formatted.

fn fmt_pointer(self) -> FmtPointer<Self>
where Self: Pointer,

Causes self to use its Pointer implementation when Debug-formatted.

fn fmt_upper_exp(self) -> FmtUpperExp<Self>
where Self: UpperExp,

Causes self to use its UpperExp implementation when Debug-formatted.

fn fmt_upper_hex(self) -> FmtUpperHex<Self>
where Self: UpperHex,

Causes self to use its UpperHex implementation when Debug-formatted.

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

impl<M> HasEvents for M
where M: ModulePrimitive,

fn events() -> Vec<Event>

Returns a list of Events used by the contract.

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

fn into(self) -> U

Calls U::from(self).

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

impl<T> Pipe for T

fn pipe<R>(self, func: impl FnOnce(Self) -> R) -> R

Pipes a value into a function that cannot ordinarily be called in suffix position. Read more

impl<T> PipeAsRef for T

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_as_mut<'a, T, R>(&'a mut self, func: impl FnOnce(&'a mut T) -> R) -> R
where Self: AsMut<T>, T: 'a, R: 'a,

Pipes a trait mutable borrow into a function that cannot normally be called in suffix position. Read more

impl<T> PipeBorrow for T

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_borrow_mut<'a, T, R>( &'a mut self, func: impl FnOnce(&'a mut T) -> R ) -> R
where Self: BorrowMut<T>, T: 'a, R: 'a,

Pipes a trait mutable borrow into a function that cannot normally be called in suffix position. Read more

impl<T> PipeDeref for T

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

fn pipe_deref_mut<'a, R>( &'a mut self, func: impl FnOnce(&'a mut Self::Target) -> R ) -> R
where Self: DerefMut, R: 'a,

Pipes a mutable dereference into a function that cannot normally be called in suffix position. Read more

impl<T> PipeRef for T

fn pipe_ref<'a, R>(&'a self, func: impl FnOnce(&'a Self) -> R) -> R
where R: 'a,

Pipes a reference into a function that cannot ordinarily be called in suffix position. Read more

fn pipe_mut<'a, R>(&'a mut self, func: impl FnOnce(&'a mut Self) -> R) -> R
where R: 'a,

Pipes a mutable reference into a function that cannot ordinarily be called in suffix position. Read more

impl<T> Same for T

type Output = T

Should always be Self

impl<T> Tap for T

fn tap<F, R>(self, func: F) -> Self
where F: FnOnce(&Self) -> R,

Provides immutable access for inspection. Read more

fn tap_dbg<F, R>(self, func: F) -> Self
where F: FnOnce(&Self) -> R,

Calls tap in debug builds, and does nothing in release builds.

fn tap_mut<F, R>(self, func: F) -> Self
where F: FnOnce(&mut Self) -> R,

Provides mutable access for modification. Read more

fn tap_mut_dbg<F, R>(self, func: F) -> Self
where F: FnOnce(&mut Self) -> R,

Calls tap_mut in debug builds, and does nothing in release builds.

impl<T, U> TapAsRef for T
where U: ?Sized,

fn tap_ref<F, R>(self, func: F) -> Self
where Self: AsRef<T>, F: FnOnce(&T) -> R,

Provides immutable access to the reference for inspection.

fn tap_ref_dbg<F, R>(self, func: F) -> Self
where Self: AsRef<T>, F: FnOnce(&T) -> R,

Calls tap_ref in debug builds, and does nothing in release builds.

fn tap_ref_mut<F, R>(self, func: F) -> Self
where Self: AsMut<T>, F: FnOnce(&mut T) -> R,

Provides mutable access to the reference for modification.

fn tap_ref_mut_dbg<F, R>(self, func: F) -> Self
where Self: AsMut<T>, F: FnOnce(&mut T) -> R,

Calls tap_ref_mut in debug builds, and does nothing in release builds.

impl<T, U> TapBorrow for T
where U: ?Sized,

fn tap_borrow<F, R>(self, func: F) -> Self
where Self: Borrow<T>, F: FnOnce(&T) -> R,

Provides immutable access to the borrow for inspection. Read more

fn tap_borrow_dbg<F, R>(self, func: F) -> Self
where Self: Borrow<T>, F: FnOnce(&T) -> R,

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,

Provides mutable access to the borrow for modification.

fn tap_borrow_mut_dbg<F, R>(self, func: F) -> Self
where Self: BorrowMut<T>, F: FnOnce(&mut T) -> R,

Calls tap_borrow_mut in debug builds, and does nothing in release builds.

impl<T> TapDeref for T

fn tap_deref<F, R>(self, func: F) -> Self
where Self: Deref, F: FnOnce(&Self::Target) -> R,

Immutably dereferences self for inspection.

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,

Mutably dereferences self for modification.

fn tap_deref_mut_dbg<F, R>(self, func: F) -> Self
where Self: DerefMut, F: FnOnce(&mut Self::Target) -> R,

Calls tap_deref_mut in debug builds, and does nothing in release builds.

impl<T> TryConv for T

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

Attempts to convert self into a target type. Read more

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

type Error = Infallible

The type returned in the event of a conversion error.

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

Performs the conversion.

impl<T, U> TryInto for T
where U: TryFrom<T>,

type Error = >::Error

The type returned in the event of a conversion error.

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

Performs the conversion.

impl<V, T> VZip<V> for T
where V: MultiLane<T>,