Method GetInt

options/options.go:191–230

GetInt retrieves an int value from the options. If the key does not exist, GetInt returns the provided default value. If the key exists but the value is of a different integer type, GetInt converts it to int. If the key exists but the value is not an integer type, GetInt panics.

(key string, def int)

// GetInt converts it to int.
// If the key exists but the value is not an integer type, GetInt panics.
func (o *Options) GetInt(key string, def int) int {
	v, ok := o.m[key]
	if !ok {
		return def
	}

	switch t := v.(type) {
	case int:
		return t
	case int8:
		return int(t)
	case int16:
		return int(t)
	case int32:
		return int(t)
	case int64:
		if t > int64(math.MaxInt) || t < int64(math.MinInt) {
			panic(fmt.Errorf("value %d for key %q exceeds int range", t, key))
		}
		return int(t)
	case uint:
		if t > uint(math.MaxInt) {
			panic(fmt.Errorf("value %d for key %q exceeds int range", t, key))
		}
		return int(t)
	case uint8:
		return int(t)
	case uint16:
		return int(t)
	case uint32:
		return int(t)
	case uint64:
		if t > uint64(math.MaxInt) {
			panic(fmt.Errorf("value %d for key %q exceeds int range", t, key))
		}
		return int(t)
	default:
		panic(newTypeMismatchError(key, v, def))
	}
}

// GetFloat retrieves a float64 value from the options.
// If the key does not exist, GetFloat returns the provided default value.