Method root

src/declare.rs:151–160

Constructs a `ClassDecl` declaring a new root class with the given name. Returns `None` if the class couldn't be allocated. An implementation for `+initialize` must also be given; the runtime calls this method for all classes, so it must be defined on root classes. Note that implementing a root class is not a simple endeavor. For example, your class probably cannot be passed

(name: &str, intitialize_fn: extern fn(&Class, Sel))

    used by ARC, will not be present otherwise.
    */
    pub fn root(name: &str, intitialize_fn: extern fn(&Class, Sel))
            -> Option<ClassDecl> {
        let mut decl = ClassDecl::with_superclass(name, None);
        if let Some(ref mut decl) = decl {
            unsafe {
                decl.add_class_method(sel!(initialize), intitialize_fn);
            }
        }
        decl
    }

    /// Adds a method with the given name and implementation to self.
    /// Panics if the method wasn't sucessfully added