Interface DictKey

crates/vm/src/dict_inner.rs:829–839

Types implementing this trait can be used to index the dictionary. Typical use-cases are: - PyObjectRef -> arbitrary python type used as key - str -> string reference used as key, this is often used internally

/// - PyObjectRef -> arbitrary python type used as key
/// - str -> string reference used as key, this is often used internally
pub trait DictKey {
    type Owned: ToPyObject;
    fn _to_owned(&self, vm: &VirtualMachine) -> Self::Owned;
    fn to_pyobject(&self, vm: &VirtualMachine) -> PyObjectRef {
        self._to_owned(vm).to_pyobject(vm)
    }
    fn key_hash(&self, vm: &VirtualMachine) -> PyResult<HashValue>;
    fn key_is(&self, other: &PyObject) -> bool;
    fn key_eq(&self, vm: &VirtualMachine, other_key: &PyObject) -> PyResult<bool>;
    fn key_as_isize(&self, vm: &VirtualMachine) -> PyResult<isize>;
}

/// Implement trait for PyObjectRef such that we can use python objects
/// to index dictionaries.