GraphQL\Language\Parser::parseScalarTypeDefinition PHP Method

    function parseScalarTypeDefinition()
    {
        $start = $this->lexer->token;
        $this->expectKeyword('scalar');
        $name = $this->parseName();
        $directives = $this->parseDirectives();
        return new ScalarTypeDefinitionNode(['name' => $name, 'directives' => $directives, 'loc' => $this->loc($start)]);
    }