void MulExpr(out NBase res)
{
res = null; NBase right = null;
UnaryExpr(out res);
while (la.kind == 35 || la.kind == 36 || la.kind == 37)
{
if (la.kind == 35)
{
Get();
UnaryExpr(out right);
res = new NBinary(NBinary.NKind.Mul, res, right);
}
else if (la.kind == 36)
{
Get();
UnaryExpr(out right);
res = new NBinary(NBinary.NKind.Div, res, right);
}
else
{
Get();
UnaryExpr(out right);
res = new NBinary(NBinary.NKind.Mod, res, right);
}
}
}
void EqlExpr(out NBase res)
{
res = null; NBase right = null;
RelExpr(out res);
while (StartOf(2))
{
if (la.kind == 15 || la.kind == 16)
{
if (la.kind == 15)
{
Get();
}
else
{
Get();
}
RelExpr(out right);
res = new NBinary(NBinary.NKind.NotEqual, res, right);
}
else
{
if (la.kind == 17)
{
Get();
}
else
{
Get();
}
RelExpr(out right);
res = new NBinary(NBinary.NKind.Equal, res, right);
}
}
}
void ShiftExpr(out NBase res)
{
res = null; NBase right = null;
AddExpr(out res);
while (StartOf(4))
{
if (la.kind == 29 || la.kind == 30)
{
if (la.kind == 29)
{
Get();
}
else
{
Get();
}
AddExpr(out right);
res = new NBinary(NBinary.NKind.ShiftLeft, res, right);
}
else
{
if (la.kind == 31)
{
Get();
}
else
{
Get();
}
AddExpr(out right);
res = new NBinary(NBinary.NKind.ShiftRight, res, right);
}
}
}
void RelExpr(out NBase res) {
res = null; NBase right = null;
ShiftExpr(out res);
while (StartOf(3)) {
switch (la.kind) {
case 19: case 20: {
if (la.kind == 19) {
Get();
} else {
Get();
}
ShiftExpr(out right);
res = new NBinary(NBinary.NKind.Less, res, right);
break;
}
case 21: case 22: {
if (la.kind == 21) {
Get();
} else {
Get();
}
ShiftExpr(out right);
res = new NBinary(NBinary.NKind.Greater, res, right);
break;
}
case 23: case 24: {
if (la.kind == 23) {
Get();
} else {
Get();
}
ShiftExpr(out right);
res = new NBinary(NBinary.NKind.LessOrEqual, res, right);
break;
}
case 25: case 26: {
if (la.kind == 25) {
Get();
} else {
Get();
}
ShiftExpr(out right);
res = new NBinary(NBinary.NKind.GreaterOrEqual, res, right);
break;
}
case 27: {
Get();
TypeExpr(out right);
res = new NCast(NCast.NKind.Is, res, (NType)right);
break;
}
case 28: {
Get();
TypeExpr(out right);
res = new NCast(NCast.NKind.As, res, (NType)right);
break;
}
}
}
}
void BitAndExpr(out NBase res) {
res = null; NBase right = null;
EqlExpr(out res);
while (la.kind == 14) {
Get();
EqlExpr(out right);
res = new NBinary(NBinary.NKind.And, res, right);
}
}
void BitXorExpr(out NBase res) {
res = null; NBase right = null;
BitAndExpr(out res);
while (la.kind == 13) {
Get();
BitAndExpr(out right);
res = new NBinary(NBinary.NKind.Xor, res, right);
}
}
void NullCoalescingExpr(out NBase res) {
res = null; NBase right = null;
OrExpr(out res);
while (la.kind == 7) {
Get();
OrExpr(out right);
res = new NBinary(NBinary.NKind.Coalesce, res, right);
}
}
void AndExpr(out NBase res) {
res = null; NBase right = null;
BitOrExpr(out res);
while (la.kind == 10 || la.kind == 11) {
if (la.kind == 10) {
Get();
} else {
Get();
}
BitOrExpr(out right);
res = new NBinary(NBinary.NKind.AndAlso, res, right);
}
}
void OrExpr(out NBase res) {
res = null; NBase right = null;
AndExpr(out res);
while (la.kind == 8 || la.kind == 9) {
if (la.kind == 8) {
Get();
} else {
Get();
}
AndExpr(out right);
res = new NBinary(NBinary.NKind.OrElse, res, right);
}
}
void AddExpr(out NBase res) {
res = null; NBase right = null;
MulExpr(out res);
while (la.kind == 33 || la.kind == 34) {
if (la.kind == 33) {
Get();
MulExpr(out right);
res = new NBinary(NBinary.NKind.Plus, res, right);
} else {
Get();
MulExpr(out right);
res = new NBinary(NBinary.NKind.Minus, res, right);
}
}
}
