func int_()

in starlark/library.go [540:583]

• 40 lines of code
• 12 McCabe index (conditional complexity)

func int_(thread *Thread, _ *Builtin, args Tuple, kwargs []Tuple) (Value, error) {
	var x Value = zero
	var base Value
	if err := UnpackArgs("int", args, kwargs, "x", &x, "base?", &base); err != nil {
		return nil, err
	}

	if s, ok := AsString(x); ok {
		b := 10
		if base != nil {
			var err error
			b, err = AsInt32(base)
			if err != nil {
				return nil, fmt.Errorf("int: for base, got %s, want int", base.Type())
			}
			if b != 0 && (b < 2 || b > 36) {
				return nil, fmt.Errorf("int: base must be an integer >= 2 && <= 36")
			}
		}
		res := parseInt(s, b)
		if res == nil {
			return nil, fmt.Errorf("int: invalid literal with base %d: %s", b, s)
		}
		return res, nil
	}

	if base != nil {
		return nil, fmt.Errorf("int: can't convert non-string with explicit base")
	}

	if b, ok := x.(Bool); ok {
		if b {
			return one, nil
		} else {
			return zero, nil
		}
	}

	i, err := NumberToInt(x)
	if err != nil {
		return nil, fmt.Errorf("int: %s", err)
	}
	return i, nil
}