Function parseVarName

dql/parser.go:898–920

parseVarName returns the variable name.

(it *lex.ItemIterator)

// parseVarName returns the variable name.
func parseVarName(it *lex.ItemIterator) (string, error) {
	val := "$"
	var consumeAtLeast bool
	for {
		items, err := it.Peek(1)
		if err != nil {
			return val, err
		}
		if items[0].Typ != itemName {
			if !consumeAtLeast {
				return "", it.Errorf("Expected variable name after $")
			}
			break
		}
		consumeAtLeast = true
		val += items[0].Val
		// Consume the current item.
		if !it.Next() {
			break
		}
	}
	return val, nil
}

func parseRecurseArgs(it *lex.ItemIterator, gq *GraphQuery) error {
	if ok := trySkipItemTyp(it, itemLeftRound); !ok {