protected ObjectDef EmitAdditiveExpression(CParser.AdditiveExpressionContext additiveExpression)
{
ObjectDef returnObjectDef = null;
if (additiveExpression.multiplicativeExpression() != null)
{
returnObjectDef = EmitMultiplicativeExpression(additiveExpression.multiplicativeExpression());
}
if (additiveExpression.multiplicativeExpression() != null &&
additiveExpression.additiveExpression() != null)
{
var additiveObj = EmitAdditiveExpression(additiveExpression.additiveExpression());
additiveObj.Load();
returnObjectDef.Load();
if (additiveExpression.Plus() != null)
{
_generatorIL.Emit(OpCodes.Add);
}
else if (additiveExpression.Minus() != null)
{
_generatorIL.Emit(OpCodes.Sub);
}
returnObjectDef = LocalObjectDef.AllocateLocal(typeof(int));
}
return(returnObjectDef);
}
public override void ExitAdditiveExpression(CParser.AdditiveExpressionContext context)
{
if (context.additiveExpression() != null)
{
string operation = context.GetText().Substring(context.additiveExpression().GetText().Length, 1);
if (operation == "+")
{
//additiveExpression '+' multiplicativeExpression
SafeCall(context, CExpression.AdditionOperator);
}
else if (operation == "-")
{
//additiveExpression '-' multiplicativeExpression
SafeCall(context, CExpression.SubtractionOperator);
}
}
}
