Function check_unused

Tools/cases_generator/analyzer.py:365–374

Unused items cannot be on the stack above used, non-peek items

(stack: list[StackItem], input_names: dict[str, lexer.Token])

    return StackItem(item.name, item.size)

def check_unused(stack: list[StackItem], input_names: dict[str, lexer.Token]) -> None:
    "Unused items cannot be on the stack above used, non-peek items"
    seen_unused = False
    for item in reversed(stack):
        if item.name == "unused":
            seen_unused = True
        elif item.peek:
            break
        elif seen_unused:
            raise analysis_error(f"Cannot have used input '{item.name}' below an unused value on the stack", input_names[item.name])


def analyze_stack(