Struct exonum_middleware_service::ArtifactReq

pub struct ArtifactReq(pub ArtifactReq);

A wrapper around an artifact requirement.

Necessary as a separate type because of Rust orphaning rules: we want to use the requirement as a stub, but the return type (CheckedCall) is defined in this crate.

Examples

let req: ArtifactReq = "some.Service@^1.3.0".parse().unwrap();

// Suppose the interface for `some.Service` is defined as follows:
#[exonum_interface]
trait SomeService<Ctx> {
    type Output;
    #[interface_method(id = 0)]
    fn do_something(&self, ctx: Ctx, arg: String) -> Self::Output;
}

// Then, requirements can be used to perform a checked call to the service.
const SERVICE_ID: InstanceId = 100;
let checked_call: CheckedCall = req.do_something(SERVICE_ID, "Arg".into());

Trait Implementations

impl Clone for ArtifactReq

fn clone(&self) -> ArtifactReq

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ArtifactReq

fn fmt(&self, formatter: &mut Formatter) -> Result

Formats the value using the given formatter.

impl Display for ArtifactReq

fn fmt(&self, formatter: &mut Formatter) -> Result

Formats the value using the given formatter.

impl From<ArtifactReq> for ArtifactReq

fn from(value: ArtifactReq) -> Self

Performs the conversion.

impl From<ArtifactReq> for ArtifactReq

fn from(value: ArtifactReq) -> Self

Performs the conversion.

impl FromStr for ArtifactReq

type Err = <ArtifactReq as FromStr>::Err

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Self, Self::Err>

Parses a string s to return a value of this type.

impl GenericCall<u32> for ArtifactReq

type Output = CheckedCall

Type of values output by the stub.

fn generic_call(
    &self,
    instance_id: InstanceId,
    method: MethodDescriptor,
    args: Vec<u8>
) -> Self::Output

Calls a stub method.

impl PartialEq<ArtifactReq> for ArtifactReq

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=.

impl StructuralPartialEq for ArtifactReq