protected void CodeGen(ILGenerator il)
{
int n = 0, d = 0, c = 0;
Stack <FuncCall> stack = null;
FuncCall call = null;
for (int i = 0; ; i++)
{
Code op = this.code[i];
if (CodeHelper.IsOp(op))
{
if (this.emitChecks)
{
Generic.CheckedOp(il, (int)op);
}
else
{
Generic.Operation(il, (int)op);
}
}
else if (op == Code.Number) // ================================
{
if (SupportLiterals)
{
Generic.LoadConst(il, this.numbers[n++]);
}
else
{
EmitLoadObj(il, this.data[d++]);
}
}
else if (op == Code.Argument) // ==============================
{
EmitLoadArg(il, this.data[d++]);
}
else if (op == Code.Separator) // =============================
{
// separator needed only for params calls:
Debug.Assert(call != null);
if (call.VarCount >= 0)
{
EmitSeparator(il, call);
}
}
else if (op == Code.Function) // ==============================
{
EmitFunctionCall(il, call);
// parent call info:
if (stack == null || stack.Count == 0)
{
call = null;
}
else
{
call = stack.Pop();
}
}
else if (op == Code.BeginCall) // =============================
{
if (call != null)
{
// allocate if needed:
if (stack == null)
{
stack = new Stack <FuncCall>();
}
stack.Push(call);
}
call = this.calls[c++];
// need for local to store params array:
if (call.VarCount > 0)
{
call.Local = il.DeclareLocal(
TypeHelper <T> .ArrayType);
}
if (call.TargetID >= 0)
{
EmitLoadObj(il, call.TargetID);
}
if (call.Current == 0 && call.VarCount > 0)
{
EmitParamArr(il, call);
}
}
else // =======================================================
{
break;
}
}
}
