Adds a new `Binder` struct that traverses the AST and resolves variable
references to concrete `Address` types (Local, Upvalue, Global). This
information is crucial for the Virtual Machine's execution phase.
Introduces the `BoundKind` enum to represent the AST after binding.
The `VM` is updated to handle `BoundKind` nodes and execute the bound
AST.
It now manages a call stack, local variables, and closures for function
calls and upvalue capturing.
The `Environment` struct is enhanced to manage global variables and
provide
a unified interface for parsing, binding, and executing scripts. It also
includes basic standard library functions.
Introduces the lexer and parser modules, enabling the conversion of
source code into an Abstract Syntax Tree (AST).
This includes:
- Defining token kinds and structures.
- Implementing lexer logic to tokenize input.
- Defining AST node kinds and structures.
- Implementing parser logic to construct the AST from tokens.
- Adding support for basic expressions, lists, keywords, and
identifiers.
- Adding the `lazy_static` dependency for keyword interning.
- Refactoring `Value::Nil` to `Value::Void`.
Sets up the basic structure for the compiler GUI application using
eframe.
This includes the main application loop, a default UI layout with a
source code editor and an output log panel, and the foundational AST
(Abstract Syntax Tree) definitions for types, nodes, and an evaluation
mechanism.