void Primary(out Expression e)
{
String name; int n; e = null;
if (la.kind == 1)
{
Ident(out name);
e = new VariableAccess(name);
}
else if (la.kind == 2)
{
Number(out n);
e = new Constant(n, Type.intType);
}
else if (la.kind == 3)
{
Get();
Expr(out e);
Expect(10);
}
else
{
SynErr(40);
}
}
void PostFixExp(out Expression e)
{
Expression e1; Expression[] es = new Expression[0];
Primary(out e);
if (la.kind == 3 || la.kind == 8)
{
if (la.kind == 8)
{
Get();
Expr(out e1);
e = new IndexAccess(e, e1);
Expect(9);
}
else
{
Get();
if (StartOf(4))
{
ActualPars(out es);
}
Expect(10);
VariableAccess varAcc = e as VariableAccess;
if (varAcc != null)
{
e = new Call(varAcc.name, es);
}
else
{
throw new Exception("Calling non-name expression");
}
}
}
}
