Trait Loader 

pub trait Loader {
    // Required method
    fn load(&self, name: &str) -> Result<Vec<(String, String)>, String>;
}

Supplies the source of a named bidama.

One method, because resolution needs exactly one thing: given a name, the blue source that name refers to. Where it came from — a working tree, a nix store path, a git object, memory — is the implementation’s business and deliberately invisible here.

Required Methods

fn load(&self, name: &str) -> Result<Vec<(String, String)>, String>

The .b sources of name, as (label, source) pairs.

The label is for diagnostics only; nothing keys on it. A package with several files returns several pairs, and their relative order is the implementation’s to fix — FsLoader sorts by filename so a load is reproducible rather than directory-order-dependent.

Err is a human-readable reason the package could not be loaded. It must name what was looked for, because “package not found” without a name sends the reader grepping a distribution to find which one.

Dyn Compatibility

This trait is dyn compatible.

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

Implementors

impl Loader for NoLoader