Struct multiversx_sc::types::CallbackClosure

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pub struct CallbackClosure<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: ManagedTypeApi + ErrorApi> CallbackClosure<M>

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pub fn new(callback_name: &'static str) -> Self

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

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

Trait Implementations§

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

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fn top_encode_or_handle_err<O, H>( &self, output: O, h: H ) -> Result<(), H::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.

Auto Trait Implementations§

Blanket Implementations§

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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, 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> 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> 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<F, I> CodecInto<F> for I
where I: TopEncodeMulti, F: CodecFrom<I>,