protected virtual void EmitEventInvocationWithTryCatchIfNeeded(
EventInvocation invocationStyle,
Type exceptionType,
CompositeMethodGenerationInfo invokeMethod,
CILMethod eventMethodToInvoke,
Action <MethodIL> loadEventAction,
Boolean storeResult
)
{
invokeMethod.IL.EmitTryCatch(
EXCEPTION_TYPE,
il2 =>
{
loadEventAction(il2);
for (Int32 idx = 0; idx < invokeMethod.Parameters.Count; ++idx)
{
il2.EmitLoadArg(invokeMethod.Parameters[idx].Position + 1);
}
il2.EmitCall(eventMethodToInvoke);
if (storeResult && !VOID_TYPE.Equals(eventMethodToInvoke.GetReturnType()))
{
var resultB = invokeMethod.GetOrCreateLocal(LB_RESULT, invokeMethod.ReturnType);
il2.EmitStoreLocal(resultB);
}
},
EventInvocation.INVOKE_DIRECTLY.Equals(invocationStyle) ? (Action <MethodIL>)null : il2 =>
{
if (exceptionType != null)
{
this.EmitStoreExceptionListWithinCatch(invokeMethod);
}
else
{
throw new InternalException("Non-direct event invocation style, but no exception type specified.");
}
},
false
);
}
protected override void Visit_VOID_TYPE(VOID_TYPE node)
{
/* MOVE CODE HERE */
}
protected virtual void Visit_VOID_TYPE(VOID_TYPE node)
{
}
protected virtual void EmitEventInvocationMethodCore(
EventModel eventModel,
CompositeTypeGenerationInfo thisGenerationInfo,
CILField eventField,
CILTypeBase fieldType,
CompositeMethodGenerationInfo invokeMethod,
CILMethod eventMethodToInvoke,
Action <LocalBuilder, EventInvocation, Type> actualEventInvoking
)
{
var eventInfo = eventModel.NativeInfo;
var il = invokeMethod.IL;
var eventLB = il.DeclareLocal(fieldType);
var afterNullCheckLabel = il.DefineLabel();
il
.EmitLoadThisField(eventField)
.EmitStoreLocal(eventLB)
.EmitLoadLocal(eventLB)
.EmitBranch(BranchType.IF_FALSE, afterNullCheckLabel);
EventInvocation invocationStyle;
Type exceptionType;
this.GetEventInvocationStyle(eventModel, out invocationStyle, out exceptionType);
actualEventInvoking(eventLB, invocationStyle, exceptionType);
// Throw exception if needed
if (EventInvocation.INVOKE_ALL.Equals(invocationStyle))
{
// TODO TODO TODO
this.EmitThrowIfExceptionListHasAny(invokeMethod, exceptionType.GetConstructor(EXCEPTION_ENUMERABLE_ARRAY).NewWrapper(this.ctx));
}
if (!VOID_TYPE.Equals(eventMethodToInvoke.GetReturnType()))
{
//LocalBuilder amountOfDeadB;
//if ( invokeMethod.TryGetLocal( LB_AMOUNT_OF_DEAD_EVENT_INFOS, out amountOfDeadB ) )
//{
// il
// .EmitLoadLocal( amountOfDeadB )
// .EmitBranch( BranchType.IF_FALSE, afterNullCheckLabel );
//}
LocalBuilder resultB;
if (invokeMethod.TryGetLocal(LB_RESULT, out resultB))
{
il.EmitLoadLocal(resultB);
}
var returnLabel = il.DefineLabel();
il
.EmitBranch(BranchType.ALWAYS, returnLabel)
.MarkLabel(afterNullCheckLabel)
.EmitLoadString("The event " + eventInfo.Name + " in ")
.EmitReflectionObjectOf(TypeGenerationUtils.CreateTypeForEmitting(eventInfo.DeclaringType.NewWrapper(this.ctx), thisGenerationInfo.GenericArguments, null))
.EmitCall(TO_STRING_METHOD)
.EmitLoadString(" is not set.")
.EmitCall(STRING_CONCAT_METHOD_3)
.EmitThrowNewException(INVALID_OPERATION_EXCEPTION_CTOR_WITH_STRING)
.MarkLabel(returnLabel);
}
else
{
il.MarkLabel(afterNullCheckLabel);
}
il.EmitReturn();
}
