private Operand ParseOperand()
{
var operand = TryExtractVariants(new Func <AstNode>[] {
ParseReceiver,
ParseReference,
() => ParseLiteral(false),
});
if (operand == null)
{
var t = NextToken();
throw SyntaxError.Make(SyntaxErrorMessages.OPERAND_EXPECTED, t);
}
var node = new Operand();
node.AddChild(operand);
return(node);
}
