Method ensure_user_func_name

cranelift/codegen/src/ir/function.rs:117–125

Retrieve a `UserExternalNameRef` for the given name, or add a new one. This method internally deduplicates same `UserExternalName` so they map to the same reference.

(&mut self, name: UserExternalName)

    /// This method internally deduplicates same `UserExternalName` so they map to the same
    /// reference.
    pub fn ensure_user_func_name(&mut self, name: UserExternalName) -> UserExternalNameRef {
        if let Some(reff) = self.user_ext_name_to_ref.get(&name) {
            *reff
        } else {
            let reff = self.user_named_funcs.push(name.clone());
            self.user_ext_name_to_ref.insert(name, reff);
            reff
        }
    }

    /// Resets an already existing user function name to a new value.
    pub fn reset_user_func_name(&mut self, index: UserExternalNameRef, name: UserExternalName) {