casper_storage::data_access_layer::query

Enum QueryResult

pub enum QueryResult {
    RootNotFound,
    ValueNotFound(String),
    Success {
        value: Box<StoredValue>,
        proofs: Vec<TrieMerkleProof<Key, StoredValue>>,
    },
    Failure(TrackingCopyError),
}

Expand description

Result of a global state query request.

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RootNotFound

Invalid state root hash.

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ValueNotFound(String)

Value not found.

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Success

Successful query.

Fields

§value: Box<StoredValue>

Stored value under a path.

§proofs: Vec<TrieMerkleProof<Key, StoredValue>>

Merkle proof of the query.

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Failure(TrackingCopyError)

Tracking Copy Error

Trait Implementations§

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impl Debug for QueryResult

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

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impl From<TrackingCopyQueryResult> for QueryResult

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fn from(tracking_copy_query_result: TrackingCopyQueryResult) -> Self

Converts to this type from the input type.

Auto Trait Implementations§

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impl UnwindSafe for QueryResult

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> 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, U> Into 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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