Method reduce_stack

src/canonicalize.rs:3474–3483

(&self, parse_stack: &'s mut Vec<StackInfo<'a, 'op>>, current_priority: usize)

	
	
	fn reduce_stack<'s, 'a:'s, 'op:'a>(&self, parse_stack: &'s mut Vec<StackInfo<'a, 'op>>, current_priority: usize) {
		let mut prev_priority = top(parse_stack).priority();
		// debug!(" reduce_stack: stack len={}, priority: prev={}, cur={}", parse_stack.len(), prev_priority, current_priority);
		while current_priority < prev_priority {					// pop off operators until we are back to the right level
			if parse_stack.len() == 1 {
				break;			// something went wrong -- break before popping too much
			}
			prev_priority = self.reduce_stack_one_time(parse_stack);
		};
	}

	fn reduce_stack_one_time<'s, 'a:'s, 'op:'a>(&self, parse_stack: &'s mut Vec<StackInfo<'a, 'op>>) -> usize {
		let mut top_of_stack = parse_stack.pop().unwrap();