protected ObjectDef EmitShiftExpression(CParser.ShiftExpressionContext shiftExpression)
{
ObjectDef returnObjectDef = null;
if (shiftExpression.additiveExpression() != null)
{
returnObjectDef = EmitAdditiveExpression(shiftExpression.additiveExpression());
}
if (shiftExpression.additiveExpression() != null &&
shiftExpression.shiftExpression() != null)
{
var shiftObj = EmitShiftExpression(shiftExpression.shiftExpression());
shiftObj.Load();
returnObjectDef.Load();
if (shiftExpression.LeftShift() != null)
{
_generatorIL.Emit(OpCodes.Shl);
}
else if (shiftExpression.RightShift() != null)
{
_generatorIL.Emit(OpCodes.Shr);
}
returnObjectDef = LocalObjectDef.AllocateLocal(typeof(int));
}
return(returnObjectDef);
}
public override void ExitShiftExpression(CParser.ShiftExpressionContext context)
{
if (context.shiftExpression() != null)
{
string operation = context.GetText().Substring(context.shiftExpression().GetText().Length, 2);
if (operation == "<<")
{
//shiftExpression '<<' additiveExpression
SafeCall(context, CExpression.BitwiseLeftShiftOperator);
}
else if (operation == ">>")
{
//shiftExpression '>>' additiveExpression
SafeCall(context, CExpression.BitwiseRightShiftOperator);
}
}
}
