Struct cosmwasm_vm::Backend

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§

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

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Gets the TypeId of self. Read more

impl<T> ArchivePointee for T

type ArchivedMetadata = ()

The archived version of the pointer metadata for this type.

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Converts some archived metadata to the pointer metadata for itself.

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where T: CastFrom<U>,

Casts self to type T. The semantics of numeric casting with the as operator are followed, so <T as As>::as_::<U> can be used in the same way as T as U for numeric conversions. Read more

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impl<F, W, T, D> Deserialize<With<T, W>, D> for F
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That is, this conversion is whatever the implementation of From<T> for U chooses to do.

impl<T> LayoutRaw for T

fn layout_raw(_: <T as Pointee>::Metadata) -> Result<Layout, LayoutError>

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impl<T> Pointable for T

const ALIGN: usize = _

The alignment of pointer.

type Init = T

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

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Dereferences the given pointer. Read more

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

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impl<T> Same for T

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Should always be Self

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Performs the conversion.

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Performs the conversion.

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

upcast ref

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upcast mut ref

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upcast boxed dyn

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