Michael Schimmel
8c865681ff
This commit introduces a new mechanism for calculating the required stack size for closures at bind time, rather than storing it in the AST. This is achieved by adding a `calculate_stack_size` method to `BoundNode`. Key changes include: - `BoundNode::calculate_stack_size`: Recursively traverses the bound AST to find the maximum `LocalSlot` index used. - Recursion blocker for lambdas: Ensures that nested lambdas are not visited during stack size calculation for the outer closure, preventing incorrect stack size estimations. - VM update: The `VM::run` method now accepts and uses the pre-calculated stack size for setting up call frames. - `Closure` struct update: Stores the `stack_size` directly within the `Closure` struct. - Binder and TypeChecker updates: Minor adjustments to accommodate the new strategy and error reporting. - Optimizer enhancements: Constant and pure-lambda propagation for `Define` statements within blocks to ensure inlinability. This refactoring addresses issues related to accurate stack size management and improves the overall robustness of the binder and VM.