```
milovidov-desktop :) SELECT -1::INT

Syntax error: failed at position 10 ('::')
```
{
    if (pos->type != TokenType::OpeningCurlyBrace)
        return false;
    ++pos;
    if (pos->type != TokenType::BareWord)
    {
        expected.add(pos, "substitution name (identifier)");
        return false;
    }
    String name(pos->begin, pos->end);