private void CodeUnary(UnaryExpression unary, List<LocalVariable> locals, List<GlobalVariable> globals, FuncParam[] parameters, ILGenerator il, List<Function> allFuncs, LocalBuilder tmpVar)
{
CodeExpression(unary.Expression, locals, globals, parameters, il, allFuncs, tmpVar);
if (unary.Operator == Terminals.Minus)
il.Emit(OpCodes.Neg);
else
{
il.Emit(OpCodes.Ldc_I4_0);
il.Emit(OpCodes.Ceq);
}
}
private Expression SimExpr()
{
Expression ex = null;
if (_la == Terminals.Minus || _la == Terminals.Inv)
{
var op = UnaryOp();
var e = Expr();
ex = new UnaryExpression(op, e);
}
else if (_la == Terminals.LPar)
{
Get();
ex = Expr();
Expect(Terminals.RPar);
}
else if (_la == Terminals.Num)
{
var num = _la as Num;
Get();
ex = new NumberExpression(num);
}
else if (_la == Terminals.Id)
{
if (IsAssign())
{
ex = Assign();
}
else
{
ex = Access();
}
}
else SynErr(38);
return ex;
}