GraphQL\Language\Parser::parseDocument PHP Method

    function parseDocument()
    {
        $start = $this->lexer->token;
        $this->expect(Token::SOF);
        $definitions = [];
        do {
            $definitions[] = $this->parseDefinition();
        } while (!$this->skip(Token::EOF));
        return new DocumentNode(['definitions' => $definitions, 'loc' => $this->loc($start)]);
    }