pub struct StateMachine<'a, B, H, Exec>where
    H: Hasher,
    B: Backend<H>,{ /* private fields */ }
Expand description

The substrate state machine.

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impl<'a, B, H, Exec> StateMachine<'a, B, H, Exec>where H: Hasher, H::Out: Ord + 'static + Codec, Exec: CodeExecutor + Clone + 'static, B: Backend<H>,

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pub fn new( backend: &'a B, overlay: &'a mut OverlayedChanges<H>, exec: &'a Exec, method: &'a str, call_data: &'a [u8], extensions: &'a mut Extensions, runtime_code: &'a RuntimeCode<'_>, context: CallContext ) -> Self

Creates new substrate state machine.

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pub fn set_parent_hash(self, parent_hash: H::Out) -> Self

Set the given parent_hash as the hash of the parent block.

This will be used for improved logging.

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pub fn execute(&mut self) -> Result<Vec<u8>, Box<dyn Error>>

Execute a call using the given state backend, overlayed changes, and call executor.

On an error, no prospective changes are written to the overlay.

Note: changes to code will be in place if this call is made again. For running partial blocks (e.g. a transaction at a time), ensure a different method is used.

Returns the SCALE encoded result of the executed function.

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impl<'a, B, H, Exec> Drop for StateMachine<'a, B, H, Exec>where H: Hasher, B: Backend<H>,

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fn drop(&mut self)

Executes the destructor for this type. Read more

Auto Trait Implementations§

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impl<'a, B, H, Exec> !RefUnwindSafe for StateMachine<'a, B, H, Exec>

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impl<'a, B, H, Exec> !Send for StateMachine<'a, B, H, Exec>

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impl<'a, B, H, Exec> !Sync for StateMachine<'a, B, H, Exec>

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impl<'a, B, H, Exec> Unpin for StateMachine<'a, B, H, Exec>where <H as Hasher>::Out: Unpin,

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impl<'a, B, H, Exec> !UnwindSafe for StateMachine<'a, B, H, Exec>

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impl<T> Any for Twhere 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 Twhere T: ?Sized,

const: unstable · source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for Twhere T: ?Sized,

const: unstable · source§

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

const: unstable · source§

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<U> for Twhere U: From<T>,

const: unstable · source§

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, Outer> IsWrappedBy<Outer> for Twhere Outer: AsRef<T> + AsMut<T> + From<T>, T: From<Outer>,

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fn from_ref(outer: &Outer) -> &T

Get a reference to the inner from the outer.

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fn from_mut(outer: &mut Outer) -> &mut T

Get a mutable reference to the inner from the outer.

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impl<T> Pointable for T

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const ALIGN: usize = mem::align_of::<T>()

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<T> Same<T> for T

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type Output = T

Should always be Self
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impl<T, U> TryFrom<U> for Twhere U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
const: unstable · source§

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 Twhere U: TryFrom<T>,

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

The type returned in the event of a conversion error.
const: unstable · source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<S, T> UncheckedInto<T> for Swhere T: UncheckedFrom<S>,

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fn unchecked_into(self) -> T

The counterpart to unchecked_from.
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impl<V, T> VZip<V> for Twhere 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> JsonSchemaMaybe for T