Enum Statement

pub enum Statement {
    IdentityCredential {
        platform: Social,
        evidence: Data,
    },
    UsernameValid {
        username: Data,
    },
    Custom {
        id: u8,
        data: CustomStatement,
    },
}

A statement upon which a StatementOracle can provide judgement.

Variants

IdentityCredential

Ask for whether evidence exists to confirm that a particular social credential on a supported platform belongs to a person.

Fields

platform: Social

evidence: Data

UsernameValid

Ask for whether a username meets certain standards.

It is up to the oracle to decide upon username validity, but it may be assumed that a username is considered acceptable if it:

• contains no offensive, discriminatory, or inappropriate content,
• is visually distinct and readable in user interfaces,
• complies with other oracle guidelines.

Fields

username: Data

Custom

Ask for a custom statement to be judged. The responsibility of correctly interpreting the encoded bytes falls on the StatementOracle implementation handling this. If no custom statements are allowed, the implementation should reject this variant altogether.

Fields

id: u8

data: CustomStatement

Trait Implementations

impl Clone for Statement

fn clone(&self) -> Statement

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Statement

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

Formats the value using the given formatter.

impl Decode for Statement

fn decode<__CodecInputEdqy: Input>( __codec_input_edqy: &mut __CodecInputEdqy, ) -> Result<Self, Error>

Attempt to deserialise the value from input.

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.

fn skip<I>(input: &mut I) -> Result<(), Error>

where I: Input,

Attempt to skip the encoded value from input.

fn encoded_fixed_size() -> Option<usize>

Returns the fixed encoded size of the type.

impl Encode for Statement

fn size_hint(&self) -> usize

If possible give a hint of expected size of the encoding.

fn encode_to<__CodecOutputEdqy: Output + ?Sized>( &self, __codec_dest_edqy: &mut __CodecOutputEdqy, )

Convert self to a slice and append it to the destination.

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

Convert self to an owned vector.

fn using_encoded<R, F>(&self, f: F) -> R

where F: FnOnce(&[u8]) -> R,

Convert self to a slice and then invoke the given closure with it.

fn encoded_size(&self) -> usize

Calculates the encoded size.

impl MaxEncodedLen for Statement

fn max_encoded_len() -> usize

Upper bound, in bytes, of the maximum encoded size of this item.

impl PartialEq for Statement

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

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl TypeInfo for Statement

type Identity = Statement

The type identifying for which type info is provided.

fn type_info() -> Type

Returns the static type identifier for Self.

impl EncodeLike for Statement

impl Eq for Statement

impl StructuralPartialEq for Statement