multiversx_sc_snippets::imports

Struct ReturnsHandledOrError

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pub struct ReturnsHandledOrError<Env, Original, NHList>
where
    Env: TxEnv,
    NHList: RHList<Env>,
{
    pub nested_handlers: NHList,
    /* private fields */
}
Expand description

Indicates that a Result will be returned, either with the handled result, according to the nested result handlers, or with an error in case of a failed transaction.

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§nested_handlers: NHList

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impl<Env, Original> ReturnsHandledOrError<Env, Original, OriginalResultMarker<Original>>
where Env: TxEnv,

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pub fn new() -> ReturnsHandledOrError<Env, Original, OriginalResultMarker<Original>>

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impl<Env, Original, NHList> ReturnsHandledOrError<Env, Original, NHList>
where Env: TxEnv, NHList: RHListExec<TxResponse, Env>,

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pub fn returns<RH>( self, item: RH, ) -> ReturnsHandledOrError<Env, Original, <NHList as RHListAppendRet<Env, RH>>::RetOutput>
where RH: RHListItem<Env, <NHList as TxResultHandler<Env>>::OriginalResult>, NHList: RHListAppendRet<Env, RH>,

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impl<Env, Original> Default for ReturnsHandledOrError<Env, Original, OriginalResultMarker<Original>>
where Env: TxEnv,

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fn default() -> ReturnsHandledOrError<Env, Original, OriginalResultMarker<Original>>

Returns the “default value” for a type. Read more
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impl<Env, Original, NHList> RHListItem<Env, Original> for ReturnsHandledOrError<Env, Original, NHList>
where Env: TxEnv, NHList: RHListExec<TxResponse, Env>, <NHList as RHList<Env>>::ListReturns: NestedTupleFlatten,

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type Returns = Result<<<NHList as RHList<Env>>::ListReturns as NestedTupleFlatten>::Unpacked, TxResponseStatus>

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impl<Env, Original, NHList> RHListItemExec<TxResponse, Env, Original> for ReturnsHandledOrError<Env, Original, NHList>
where Env: TxEnv<RHExpect = TxExpect>, NHList: RHListExec<TxResponse, Env>, <NHList as RHList<Env>>::ListReturns: NestedTupleFlatten,

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fn item_tx_expect(&self, prev: TxExpect) -> TxExpect

Part of the execution pre-processing, each result handler needs to produce an “expect” field, as defined in the environment. Read more
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fn item_process_result( self, raw_result: &TxResponse, ) -> <ReturnsHandledOrError<Env, Original, NHList> as RHListItem<Env, Original>>::Returns

The main functionality of a result handler, it either does some computation internally (e.g. execution of a lambda function), or produces a result, or both.

Auto Trait Implementations§

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impl<Env, Original, NHList> Freeze for ReturnsHandledOrError<Env, Original, NHList>
where NHList: Freeze,

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impl<Env, Original, NHList> RefUnwindSafe for ReturnsHandledOrError<Env, Original, NHList>
where NHList: RefUnwindSafe, Env: RefUnwindSafe, Original: RefUnwindSafe,

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impl<Env, Original, NHList> Send for ReturnsHandledOrError<Env, Original, NHList>
where NHList: Send, Env: Send, Original: Send,

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impl<Env, Original, NHList> Sync for ReturnsHandledOrError<Env, Original, NHList>
where NHList: Sync, Env: Sync, Original: Sync,

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impl<Env, Original, NHList> Unpin for ReturnsHandledOrError<Env, Original, NHList>
where NHList: Unpin, Env: Unpin, Original: Unpin,

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impl<Env, Original, NHList> UnwindSafe for ReturnsHandledOrError<Env, Original, NHList>
where NHList: UnwindSafe, Env: UnwindSafe, Original: UnwindSafe,

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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

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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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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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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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type Output = T

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

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

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where S: Into<Dispatch>,

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