Derive Macro ExecutionFail

#[derive(ExecutionFail)]
{
    // Attributes available to this derive:
    #[execution_fail]
}

Implements ExecutionFail trait for the given enum. Additionally, From<MyEnum> for ExecutionError conversion is implemented, allowing to use errors in the service code.

Enumeration should have an explicit discriminant for each error kind. The documentation comments for each error kind are used to derive the Display trait.

Container Attributes

crate

#[execution_fail(crate = "path")]

Prefix of the exonum crate has two main values - crate or exonum. The default value is exonum.

kind

#[execution_fail(kind = "runtime")]

Error kind with the following possible values: service, runtime. The default value is service.