Expose lower register functions

Added RegisterLow and RegisterUntilLow

this gives more power to the user
This commit is contained in:
adman
2026-04-05 16:07:05 +02:00
parent 4cc4b6af5b
commit 45287f47d2
2 changed files with 32 additions and 42 deletions
+19 -24
View File
@@ -67,8 +67,6 @@ func (e MainHandlerErr) Unwrap() error {
// DontForwardErr will stop the event from being forwarded to other handlers, including anything handlers.
var DontForwardErr = errors.New("dont forward")
var WhileClosingErr = errors.New("error while closing")
// CloseNonCriticalErr will close even when the event is non-critical
var ContextDoneErr = errors.New("context done")
var RecvNotOkErr = errors.New("recv not ok")
@@ -114,40 +112,37 @@ func (l *Loop) RegisterEventSource(ch <-chan any) {
// Instead, it will log it to slog.Error
// Warning: If a bad handler is passed in the program will panic.
func (l *Loop) Register(h any) {
l.RegisterCustomType(ValidateHandler(h))
eventType, hv := ValidateHandler(h)
l.RegisterLow(eventType, hv, false)
}
// RegisterCustomType registers a handler that will not close the loop if it returns an error.
// RegisterLow registers a handler that will not close the loop if it returns an error.
// Instead, it will log it to slog.Error
// This does not hold true for signaling errors like HandlerDoneErr or DontForwardErr
// Warning: If a bad handler is passed in the program will panic.
func (l *Loop) RegisterCustomType(eventType reflect.Type, hv reflect.Value) {
handleFunc := func(packet any) error {
v := hv.Call([]reflect.Value{reflect.ValueOf(packet)})[0]
if !v.IsNil() {
err := v.Interface().(error)
if errors.As(err, &HandlerDoneErr{}) || errors.Is(err, DontForwardErr) {
return err
func (l *Loop) RegisterLow(eventType reflect.Type, hv reflect.Value, critical bool) {
handleFunc := hv
if !critical {
handleFunc = reflect.ValueOf(func(packet any) error {
v := hv.Call([]reflect.Value{reflect.ValueOf(packet)})[0]
if !v.IsNil() {
err := v.Interface().(error)
if errors.As(err, &HandlerDoneErr{}) || errors.Is(err, DontForwardErr) {
return err
}
slog.Error("handler failed", "err", err)
}
slog.Error("handler failed", "err", err)
}
return nil
return nil
})
}
l.RegisterDirect(eventType, reflect.ValueOf(handleFunc))
l.HandlerFunctions[eventType] = append(l.HandlerFunctions[eventType], handleFunc)
}
// RegisterCritical registers a handler that will close the loop if it returns an error.
// Warning: If a bad handler is passed in the program will panic.
func (l *Loop) RegisterCritical(h any) {
eventType, hv := ValidateHandler(h)
l.RegisterDirect(eventType, hv)
}
func (l *Loop) RegisterDirect(k reflect.Type, h reflect.Value) {
l.HandlerFunctions[k] = append(l.HandlerFunctions[k], h)
}
func (l *Loop) RegisterIgnore(t any) {
l.RegisterDirect(reflect.TypeOf(t), reflect.ValueOf(func(any) error { return nil }))
l.HandlerFunctions[eventType] = append(l.HandlerFunctions[eventType], hv)
}
// FireFound triggers all handlers registered for the specified event type and returns if handlers were found or an error occurred.