Function racer::get_rust_src_path

pub fn get_rust_src_path() -> Result<PathBuf, RustSrcPathError>

Get the path for Rust standard library source code. Checks first the paths in the RUST_SRC_PATH environment variable.

If the environment variable is not set, it checks the rust sys root for the rust-src component.

If that isn’t available, checks /usr/local/src/rust/src and /usr/src/rust/src as default values.

If the Rust standard library source code cannot be found, returns Err(racer::RustSrcPathError::Missing).

If the path in RUST_SRC_PATH or the path in rust sys root is invalid, returns a corresponding error. If a valid path is found, returns that path.

Examples

extern crate racer;

match racer::get_rust_src_path() {
    Ok(_path) => {
        // RUST_SRC_PATH is valid
    },
    Err(racer::RustSrcPathError::Missing) => {
        // path is not set
    },
    Err(racer::RustSrcPathError::DoesNotExist(_path)) => {
        // provided path doesnt point to valid file
    },
    Err(racer::RustSrcPathError::NotRustSourceTree(_path)) => {
        // provided path doesn't have rustc src
    }
}