void Primary(out OqlExpression expression)
{
OqlExpression result = null;
OqlExpression child;
if (la.kind == 1)
{
Get();
result = new IdentifierExpression(t.val, t.line, t.col);
if (la.kind == 20)
{
if (IsOidIdentifier(result))
{
Expect(20);
Expect(3);
result.UnaryOp = "";
result.Add(new IndexExpression(int.Parse(t.val), t.line, t.col));
Expect(21);
}
else
{
Get();
ParameterList(out child);
result = new FunctionExpression(result.Value, t.line, t.col);
result.UnaryOp = "";
result.Add(child);
Expect(21);
}
}
}
else if (StartOf(5))
{
Literal(out result);
}
else if (la.kind == 16)
{
Get();
result = new ParameterExpression(t.val, t.line, t.col);
}
else if (la.kind == 20)
{
Get();
RootExpr(out result);
result.HasBrackets = true;
Expect(21);
}
else
{
SynErr(44);
}
expression = result.Simplify();
}
