Trait Context 

pub trait Context {
    type WithContext;

    // Required methods
    fn context<D>(self, context: D) -> Self::WithContext
       where D: Display;
    fn with_context<D, F>(self, cfn: F) -> Self::WithContext
       where D: Display,
             F: FnOnce() -> D;
}

The FVM’s equivalent of anyhow::Context. This is intentionally only implemented on ExecutionError and Result<T, ExecutionError> so anyhow::Context can be imported at the same time.

Required Associated Types

type WithContext

Required Methods

fn context<D>(self, context: D) -> Self::WithContext

where D: Display,

fn with_context<D, F>(self, cfn: F) -> Self::WithContext

where D: Display, F: FnOnce() -> D,

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl<T> Context for Result<T, ExecutionError>

type WithContext = Result<T, ExecutionError>

fn context<D>( self, context: D, ) -> <Result<T, ExecutionError> as Context>::WithContext

where D: Display,

fn with_context<D, F>( self, cfn: F, ) -> <Result<T, ExecutionError> as Context>::WithContext

where D: Display, F: FnOnce() -> D,

Implementors

impl Context for ExecutionError

type WithContext = ExecutionError