INDEV: Stack Overvlow with loops

Stack Overflow

The current implementation of loops throws the following error

Code (executed by the interpreter):

+[>+<-]

Error

thread 'main' has overflowed its stack
fatal runtime error: stack overflow

main.rs file:

mod brainfuck;
use brainfuck::interpreter::*;
fn main() {
    let init_ptr: usize = 0;
    let init_mem: Vec<u8> = vec![0; 16];
    let state: ProgramState = ProgramState::new(init_mem, init_ptr);
    let new_state = execute_statements(&vec![
            '+',
            '[',
            '>',
            '+',
            '<',
            '-',
            ']'],
            &state);
    dbg!(new_state);
}

It probably comes down to the implementation of the looping system in brainfuck.rs