Method register_scheme

std/src/storage/mod.rs:399–403

Registers a new drive `factory` to handle the `scheme`. Must not have previously been registered and the `scheme` must be in lowercase.

(&mut self, scheme: &str, factory: Box<dyn DriveFactory>)

    /// Registers a new drive `factory` to handle the `scheme`.  Must not have previously been
    /// registered and the `scheme` must be in lowercase.
    pub fn register_scheme(&mut self, scheme: &str, factory: Box<dyn DriveFactory>) {
        assert_eq!(scheme.to_lowercase(), scheme);
        let previous = self.factories.insert(scheme.to_owned(), factory);
        assert!(previous.is_none(), "Tried to register {} twice", scheme);
    }

    /// Returns true if the `scheme` is already registered.
    pub fn has_scheme(&self, scheme: &str) -> bool {