Trait frame_support::traits::EnsureOriginWithArg

pub trait EnsureOriginWithArg<OuterOrigin, Argument> {
    type Success;

    fn try_origin(
        o: OuterOrigin,
        a: &Argument
    ) -> Result<Self::Success, OuterOrigin>;
    fn try_successful_origin(a: &Argument) -> Result<OuterOrigin, ()>;

    fn ensure_origin(
        o: OuterOrigin,
        a: &Argument
    ) -> Result<Self::Success, BadOrigin> { ... }
}

Some sort of check on the origin is performed by this object.

Required Associated Types

type Success

A return type.

Required Methods

fn try_origin(o: OuterOrigin, a: &Argument) -> Result<Self::Success, OuterOrigin>

Perform the origin check, returning the origin value if unsuccessful. This allows chaining.

fn try_successful_origin(a: &Argument) -> Result<OuterOrigin, ()>

Attempt to get an outer origin capable of passing try_origin check. May return Err if it is impossible.

** Should be used for benchmarking only!!! **

Provided Methods

fn ensure_origin(
    o: OuterOrigin,
    a: &Argument
) -> Result<Self::Success, BadOrigin>

Perform the origin check.

Implementors

impl<OuterOrigin, Argument, EO: EnsureOrigin<OuterOrigin>> EnsureOriginWithArg<OuterOrigin, Argument> for AsEnsureOriginWithArg<EO>

type Success = <EO as EnsureOrigin<OuterOrigin>>::Success