Call Stack

Each "frame" in the call stack corresponds to one layer of [function] call (script-defined
or native Rust).

A call stack frame has the type `debugger::CallStackFrame`.

The debugger keeps a call stack of function calls with argument values.

This call stack can be examined to determine the control flow at any particular point.

The Debugger::call_stack method returns a slice of all call stack frames.

use rhai::debugger::*;

let debugger = &mut context.global_runtime_state_mut().debugger;

// Get depth of the call stack.
let depth = debugger.call_stack().len();

// Display all function calls
for frame in debugger.call_stack().iter() {
    println!("{}", frame);
}