Struct cosmwasm_vm::Backend

source · 
pub struct Backend<A: BackendApi, S: Storage, Q: Querier> {
    pub api: A,
    pub storage: S,
    pub querier: Q,
}
Expand description

Holds all external dependencies of the contract. Designed to allow easy dependency injection at runtime. This cannot be copied or cloned since it would behave differently for mock storages and a bridge storage in the VM.

Fields§

§api: A§storage: S§querier: Q

Auto Trait Implementations§

§

impl<A, S, Q> RefUnwindSafe for Backend<A, S, Q>where
    A: RefUnwindSafe,
    Q: RefUnwindSafe,
    S: RefUnwindSafe,

§

impl<A, S, Q> Send for Backend<A, S, Q>where
    Q: Send,
    S: Send,

§

impl<A, S, Q> Sync for Backend<A, S, Q>where
    A: Sync,
    Q: Sync,
    S: Sync,

§

impl<A, S, Q> Unpin for Backend<A, S, Q>where
    A: Unpin,
    Q: Unpin,
    S: Unpin,

§

impl<A, S, Q> UnwindSafe for Backend<A, S, Q>where
    A: UnwindSafe,
    Q: UnwindSafe,
    S: UnwindSafe,

Blanket Implementations§

source§

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

source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
§

impl<T> ArchivePointee for T

§

type ArchivedMetadata = ()

The archived version of the pointer metadata for this type.
§

fn pointer_metadata(
    _: &<T as ArchivePointee>::ArchivedMetadata
) -> <T as Pointee>::Metadata

Converts some archived metadata to the pointer metadata for itself.
source§

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

const: unstable · source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
source§

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
§

impl<F, W, T, D> Deserialize<With<T, W>, D> for Fwhere
    W: DeserializeWith<F, T, D>,
    D: Fallible + ?Sized,
    F: ?Sized,

§

fn deserialize(
    &self,
    deserializer: &mut D
) -> Result<With<T, W>, <D as Fallible>::Error>

Deserializes using the given deserializer
source§

impl<T> From<T> for T

const: unstable · source§

fn from(t: T) -> T

Returns the argument unchanged.

source§

impl<T> Instrument for T

source§

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

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
source§

fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
source§

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.

§

impl<T> Pointable for T

§

const ALIGN: usize = mem::align_of::<T>()

The alignment of pointer.
§

type Init = T

The type for initializers.
§

unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
§

unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
§

unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
§

unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
§

impl<T> Pointee for T

§

type Metadata = ()

The type for metadata in pointers and references to Self.
source§

impl<T> Same<T> for T

§

type Output = T

Should always be Self
source§

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

§

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.
source§

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

§

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.
§

impl<T> Upcastable for Twhere
    T: Any + Send + Sync + 'static,

§

fn upcast_any_ref(&self) -> &(dyn Any + 'static)

upcast ref
§

fn upcast_any_mut(&mut self) -> &mut (dyn Any + 'static)

upcast mut ref
§

fn upcast_any_box(self: Box<T, Global>) -> Box<dyn Any + 'static, Global>

upcast boxed dyn
source§

impl<T> WithSubscriber for T

source§

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>where
    S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
source§

fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more