multiversx_sc_snippets::imports

Struct CallbackClosure

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pub struct CallbackClosure<M>
where
    M: ManagedTypeApi + ErrorApi,
{ /* private fields */ }
Expand description

Object that encodes full async callback data.

Should not be created manually, we have auto-generated call proxies that will create this object in a type-safe manner.

How it functions:

  • With the old async call mechanism, this data is serialized to storage.
  • With the new promises framework, the VM handles this data.

In both cases the framework hides all the magic, the developer shouldn’t worry about it.

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impl<M> CallbackClosure<M>
where M: ManagedTypeApi + ErrorApi,

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pub fn new(callback_name: &'static str) -> CallbackClosure<M>

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pub fn push_endpoint_arg<T>(&mut self, endpoint_arg: &T)
where T: TopEncodeMulti,

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pub fn save_to_storage<A>(&self)
where A: BlockchainApi + StorageWriteApi,

Trait Implementations§

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impl<M> TopEncode for CallbackClosure<M>
where M: ManagedTypeApi + ErrorApi,

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fn top_encode_or_handle_err<O, H>( &self, output: O, __h__: H, ) -> Result<(), <H as EncodeErrorHandler>::HandledErr>
where O: TopEncodeOutput, H: EncodeErrorHandler,

Version of top_encode that can handle errors as soon as they occur. For instance in can exit immediately and make sure that if it returns, it is a success. By not deferring error handling, this can lead to somewhat smaller bytecode.
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fn top_encode<O>(&self, output: O) -> Result<(), EncodeError>
where O: TopEncodeOutput,

Attempt to serialize the value to ouput.
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impl<Api> TxAsyncCallCallback<Api> for CallbackClosure<Api>
where Api: CallTypeApi + StorageWriteApi,

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fn save_callback_closure_to_storage(&self)

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impl<Api> TxPromisesCallback<Api> for CallbackClosure<Api>
where Api: CallTypeApi,

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fn callback_name(&self) -> &'static str

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fn overwrite_with_serialized_args( &self, cb_closure_args_serialized: &mut ManagedBuffer<Api>, )

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fn gas_for_callback(&self) -> u64

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impl<Api> TxResultHandler<TxScEnv<Api>> for CallbackClosure<Api>
where Api: CallTypeApi,

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type OriginalResult = ()

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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> From<T> for T

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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>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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impl<T> InterpretableFrom<T> for T

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fn interpret_from(from: T, _context: &InterpreterContext) -> T

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

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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> IntoEither for T

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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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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
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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impl<T> ReconstructableFrom<T> for T

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fn reconstruct_from(from: T, _builder: &ReconstructorContext) -> T

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impl<T> SCCodec for T
where T: TopEncode,

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fn fmt<F>(&self, f: &mut F)
where F: FormatByteReceiver,

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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> TopEncodeMulti for T
where T: TopEncode,

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fn multi_encode_or_handle_err<O, H>( &self, output: &mut O, h: H, ) -> Result<(), <H as EncodeErrorHandler>::HandledErr>
where O: TopEncodeMultiOutput, H: EncodeErrorHandler,

Version of top_encode that can handle errors as soon as they occur. For instance in can exit immediately and make sure that if it returns, it is a success. By not deferring error handling, this can lead to somewhat smaller bytecode.
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fn multi_encode<O>(&self, output: &mut O) -> Result<(), EncodeError>
where O: TopEncodeMultiOutput,

Attempt to serialize the value to ouput.
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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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 T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V

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impl<T> WithSubscriber for T

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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
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more
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impl<T> ErasedDestructor for T
where T: 'static,

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impl<T> MaybeSendSync for T

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impl<O, T> ProxyArg<O> for T
where O: TypeAbiFrom<T>, T: TopEncodeMulti,