Trait ErrCtxExt 

pub trait ErrCtxExt<T>: Sized {
    // Required methods
    fn err_ctx(self, context: &'static str) -> Result<T>;
    fn err_ctx_with(self, context: String) -> Result<T>;
}

Substrate extension trait over Result<T, E> for any E: std::fmt::Display — the ONE substrate owner of the generic .map_err(|e| anyhow::anyhow!("<ctx>: {e}")) display-prefix wrap-shape for consumers whose source error is a bare Display type NOT already covered by a per-error-type flatten-wrap peer. See the module docs for the specialized-peer partition + the naming rationale (why err_ctx and not context).

Required Methods

fn err_ctx(self, context: &'static str) -> Result<T>

Wrap the source error (if any) with a static context prefix, producing an anyhow::Result whose error Display reads exactly "<context>: <source display>".

fn err_ctx_with(self, context: String) -> Result<T>

Owned-string peer of Self::err_ctx — the escape hatch for consumers that compose the context slug via format!.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementations on Foreign Types

impl<T, E> ErrCtxExt<T> for Result<T, E>

where E: Display,

fn err_ctx(self, context: &'static str) -> Result<T>

fn err_ctx_with(self, context: String) -> Result<T>

Implementors