pub struct Statement { /* private fields */ }
Expand description

Statement structure.

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impl Statement

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pub fn new() -> Statement

Create a new empty statement with no proof.

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pub fn new_with_proof(proof: Proof) -> Statement

Create a new statement with a proof.

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pub fn sign_sr25519_public(&mut self, key: &Public) -> bool

Sign with a key that matches given public key in the keystore.

Returns true if signing worked (private key present etc).

NOTE: This can only be called from the runtime.

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pub fn sign_sr25519_private(&mut self, key: &Pair)

Sign with a given private key and add the signature proof field.

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pub fn sign_ed25519_public(&mut self, key: &Public) -> bool

Sign with a key that matches given public key in the keystore.

Returns true if signing worked (private key present etc).

NOTE: This can only be called from the runtime.

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pub fn sign_ed25519_private(&mut self, key: &Pair)

Sign with a given private key and add the signature proof field.

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pub fn sign_ecdsa_public(&mut self, key: &Public) -> bool

Sign with a key that matches given public key in the keystore.

Returns true if signing worked (private key present etc).

NOTE: This can only be called from the runtime.

Returns true if signing worked (private key present etc).

NOTE: This can only be called from the runtime.

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pub fn sign_ecdsa_private(&mut self, key: &Pair)

Sign with a given private key and add the signature proof field.

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pub fn verify_signature(&self) -> SignatureVerificationResult

Check proof signature, if any.

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pub fn hash(&self) -> [u8; 32]

Calculate statement hash.

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pub fn topic(&self, index: usize) -> Option<Topic>

Returns a topic by topic index.

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pub fn decryption_key(&self) -> Option<DecryptionKey>

Returns decryption key if any.

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pub fn into_data(self) -> Option<Vec<u8>>

Convert to internal data.

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pub fn proof(&self) -> Option<&Proof>

Get a reference to the statement proof, if any.

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pub fn account_id(&self) -> Option<AccountId>

Get proof account id, if any

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pub fn data(&self) -> Option<&Vec<u8>>

Get plain data.

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pub fn data_len(&self) -> usize

Get plain data len.

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pub fn channel(&self) -> Option<Channel>

Get channel, if any.

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pub fn priority(&self) -> Option<u32>

Get priority, if any.

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pub fn remove_proof(&mut self)

Remove the proof of this statement.

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pub fn set_proof(&mut self, proof: Proof)

Set statement proof. Any existing proof is overwritten.

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pub fn set_priority(&mut self, priority: u32)

Set statement priority.

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pub fn set_channel(&mut self, channel: Channel)

Set statement channel.

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pub fn set_topic(&mut self, index: usize, topic: Topic)

Set topic by index. Does noting if index is over MAX_TOPICS.

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pub fn set_decryption_key(&mut self, key: DecryptionKey)

Set decryption key.

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pub fn set_plain_data(&mut self, data: Vec<u8>)

Set unencrypted statement data.

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pub fn encrypt(&mut self, data: &[u8], key: &Public) -> Result<(), Error>

Encrypt give data with given key and store both in the statements.

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pub fn decrypt_private(&self, key: &Pair) -> Result<Option<Vec<u8>>, Error>

Decrypt data (if any) with the given private key.

Trait Implementations§

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impl Clone for Statement

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fn clone(&self) -> Statement

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for Statement

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

Formats the value using the given formatter. Read more
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impl Decode for Statement

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fn decode<I: Input>(input: &mut I) -> Result<Self, Error>

Attempt to deserialise the value from input.
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fn decode_into<I>( input: &mut I, dst: &mut MaybeUninit<Self> ) -> Result<DecodeFinished, Error>where I: Input,

Attempt to deserialize the value from input into a pre-allocated piece of memory. Read more
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fn skip<I>(input: &mut I) -> Result<(), Error>where I: Input,

Attempt to skip the encoded value from input. Read more
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fn encoded_fixed_size() -> Option<usize>

Returns the fixed encoded size of the type. Read more
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impl Default for Statement

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fn default() -> Statement

Returns the “default value” for a type. Read more
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impl Encode for Statement

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fn encode(&self) -> Vec<u8>

Convert self to an owned vector.
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fn size_hint(&self) -> usize

If possible give a hint of expected size of the encoding. Read more
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fn encode_to<T>(&self, dest: &mut T)where T: Output + ?Sized,

Convert self to a slice and append it to the destination.
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fn using_encoded<R, F>(&self, f: F) -> Rwhere F: FnOnce(&[u8]) -> R,

Convert self to a slice and then invoke the given closure with it.
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fn encoded_size(&self) -> usize

Calculates the encoded size. Read more
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impl PartialEq<Statement> for Statement

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fn eq(&self, other: &Statement) -> bool

This method tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl PassBy for Statement

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type PassBy = Codec<Statement>

The strategy that should be used to pass the type.
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impl TypeInfo for Statement

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type Identity = Statement

The type identifying for which type info is provided. Read more
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fn type_info() -> Type

Returns the static type identifier for Self.
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impl Eq for Statement

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impl StructuralEq for Statement

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impl StructuralPartialEq for Statement

Auto Trait Implementations§

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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,

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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 Twhere 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> CheckedConversion for T

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fn checked_from<T>(t: T) -> Option<Self>where Self: TryFrom<T>,

Convert from a value of T into an equivalent instance of Option<Self>. Read more
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fn checked_into<T>(self) -> Option<T>where Self: TryInto<T>,

Consume self to return Some equivalent value of Option<T>. Read more
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impl<T> Clear for Twhere T: Default + Eq + PartialEq<T>,

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fn is_clear(&self) -> bool

True iff no bits are set.
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fn clear() -> T

Return the value of Self that is clear.
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impl<T> DecodeAll for Twhere T: Decode,

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fn decode_all(input: &mut &[u8]) -> Result<T, Error>

Decode Self and consume all of the given input data. Read more
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impl<T> DecodeLimit for Twhere T: Decode,

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fn decode_all_with_depth_limit( limit: u32, input: &mut &[u8] ) -> Result<T, Error>

Decode Self and consume all of the given input data. Read more
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fn decode_with_depth_limit<I>(limit: u32, input: &mut I) -> Result<T, Error>where I: Input,

Decode Self with the given maximum recursion depth and advance input by the number of bytes consumed. Read more
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impl<T> DynClone for Twhere T: Clone,

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fn __clone_box(&self, _: Private) -> *mut ()

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impl<Q, K> Equivalent<K> for Qwhere Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Compare self to key and return true if they are equal.
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impl<Q, K> Equivalent<K> for Qwhere Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Checks if this value is equivalent to the given key. 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> FromFFIValue for Twhere T: PassBy,

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type SelfInstance = T

As Self can be an unsized type, it needs to be represented by a sized type at the host. This SelfInstance is the sized type.
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fn from_ffi_value( context: &mut dyn FunctionContext, arg: <<T as PassBy>::PassBy as RIType>::FFIType ) -> Result<T, String>

Create SelfInstance from the given
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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>,

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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> IntoFFIValue for Twhere T: PassBy,

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fn into_ffi_value( self, context: &mut dyn FunctionContext ) -> Result<<<T as PassBy>::PassBy as RIType>::FFIType, String>

Convert self into a ffi value.
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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> KeyedVec for Twhere T: Codec,

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fn to_keyed_vec(&self, prepend_key: &[u8]) -> Vec<u8, Global>

Return an encoding of Self prepended by given slice.
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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> RIType for Twhere T: PassBy,

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type FFIType = <<T as PassBy>::PassBy as RIType>::FFIType

The ffi type that is used to represent Self.
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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> SaturatedConversion for T

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fn saturated_from<T>(t: T) -> Selfwhere Self: UniqueSaturatedFrom<T>,

Convert from a value of T into an equivalent instance of Self. Read more
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fn saturated_into<T>(self) -> Twhere Self: UniqueSaturatedInto<T>,

Consume self to return an equivalent value of T. Read more
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impl<T> ToOwned for Twhere T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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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.
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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 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.
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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<T, S> UniqueSaturatedInto<T> for Swhere T: Bounded, S: TryInto<T>,

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fn unique_saturated_into(self) -> T

Consume self to return an equivalent value of T.
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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<S> Codec for Swhere S: Decode + Encode,

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impl<T> EncodeLike<&&T> for Twhere T: Encode,

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impl<T> EncodeLike<&T> for Twhere T: Encode,

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impl<T> EncodeLike<&mut T> for Twhere T: Encode,

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impl<T> EncodeLike<Arc<T>> for Twhere T: Encode,

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impl<T> EncodeLike<Box<T, Global>> for Twhere T: Encode,

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impl<'a, T> EncodeLike<Cow<'a, T>> for Twhere T: ToOwned + Encode,

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impl<T> EncodeLike<Rc<T>> for Twhere T: Encode,

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impl<T> JsonSchemaMaybe for T

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impl<T> MaybeDebug for Twhere T: Debug,

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impl<T> MaybeRefUnwindSafe for Twhere T: RefUnwindSafe,

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impl<T> Member for Twhere T: Send + Sync + Debug + Eq + PartialEq<T> + Clone + 'static,

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impl<T> StaticTypeInfo for Twhere T: TypeInfo + 'static,