Module eval_function 

Function evaluation module

This module handles all function-related operations in the interpreter. Provides function definition, calling, closure capture, and parameter binding. Extracted for maintainability and following Toyota Way principles. All functions maintain <10 cyclomatic complexity.

Structs

Closure

Function closure with captured environment

Functions

check_recursion_depth

Check recursion depth before entering function

create_partial_application

Create a partial application of a function

decrement_depth

Decrement recursion depth after exiting function

eval_function_call

Call a function with given arguments

eval_function_composition

Evaluate function composition (f ∘ g)

eval_function_def

Evaluate a function definition and return a closure

eval_lambda

Evaluate a lambda expression and return a closure

eval_method_call_value

Evaluate a method call on a value

get_arity

Get arity (number of parameters) of a callable value

get_current_depth

Get current recursion depth (for debugging/monitoring)

is_callable

Check if a value is callable (function, builtin, etc.)

set_max_recursion_depth

Set the maximum recursion depth limit