func()

in pkg/sdk/flags/strvals/parser.go [259:311]

• 47 lines of code
• 14 McCabe index (conditional complexity)

func (t *parser) listItem(list []interface{}, i int) ([]interface{}, error) {
	stop := runeSet([]rune{'[', '.', '='})
	switch k, last, err := runesUntil(t.sc, stop); {
	case len(k) > 0:
		return list, fmt.Errorf("unexpected data at end of array index: %q", k)
	case err != nil:
		return list, err
	case last == '=':
		vl, e := t.valList()
		switch e {
		case nil:
			return setIndex(list, i, vl), nil
		case io.EOF:
			return setIndex(list, i, ""), err
		case ErrNotList:
			rs, e := t.val()
			if e != nil && e != io.EOF {
				return list, e
			}
			v, e := t.reader(rs)
			return setIndex(list, i, v), e
		default:
			return list, e
		}
	case last == '[':
		// now we have a nested list. Read the index and handle.
		i, err := t.keyIndex()
		if err != nil {
			return list, fmt.Errorf("error parsing index: %w", err)
		}
		// Now we need to get the value after the ].
		list2, err := t.listItem(list, i)
		return setIndex(list, i, list2), err
	case last == '.':
		// We have a nested object. Send to t.key
		inner := map[string]interface{}{}
		if len(list) > i {
			var ok bool
			inner, ok = list[i].(map[string]interface{})
			if !ok {
				// We have indices out of order. Initialize empty value.
				list[i] = map[string]interface{}{}
				inner = list[i].(map[string]interface{})
			}
		}

		// Recurse
		e := t.key(inner)
		return setIndex(list, i, inner), e
	default:
		return nil, fmt.Errorf("parse error: unexpected token %v", last)
	}
}