# Value
There are 3 levels values are made of
- `RefValue` is a reference-counted (Rc) `Value` with dynamic borrowing (RefCell)
- It implements `Object` for easier usage in common cases.
- It provides `borrow()` and `borrow_mut()` when explicit borrowing is wanted.
- It provides `unary_op()` and `binary_op()` functions to perform operations with values.
- There are fast-lane implementations for any Value-item, except Object.
- In case of an object, a builtin method named `<object>_<operation>()` is tried to be called.
- `Value` is an enum, either saving atomics, numeric values, or `dyn Object`.
- It implements `Object` as well.
- It implements `object::<T>()`, `object_mut::<T>()` and `into_object_::<T>()` to downcast an object to its specific type.
- `Object` is a trait serving an interface to any more specific type of data or information.
- Current implementation for `Builtin`, `Dict`, `List`, `Parselet`, `Str`, `Token`.
- It provides methods to quickly access Rust primary types, like `is_true()`, `to_i64()` or `to_string()`.
# Binary operation conversions
This is how Tokay builtin values are converted during binary operations.
| + * - / | **void** | **null** | **bool** | **int** | **float** | **addr** | **str** | **dict** | **list**
| **null** | int | int | int | int | float | addr | str | dict | list
| **bool** | int | int | int | int | float | addr | str | dict | list
| **int** | int | int | int | int | float | addr | str | dict | list
| **float** | float | float | float | float | float | addr | str | dict | list
| **str** | str | str | str | str | str | str | str | dict | list
| **dict** | dict | dict | dict | dict | dict | dict | dict | dict | list
| **list** | list | list | list | list | list | list | list | list | list
# Token severity
| 0 | `_`, `__`, `Touch` |
| 5 | Any token (`Char`, `Match`, `Int`, `Float`, `Number`), parselet default |
| 10 | Any explicitly pushed value |