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Signed-off-by: Daniil Stepanenko <daniil.stepanenko.96@gmail.com>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,12 @@ | ||
| package funcs | ||
|
|
||
| import ( | ||
| "context" | ||
| "log/slog" | ||
| ) | ||
|
|
||
| const TraceFuncsLevel = slog.LevelDebug - 1 | ||
|
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| func trace(ctx context.Context, msg string, attrs ...slog.Attr) { | ||
| slog.LogAttrs(ctx, TraceFuncsLevel, msg, attrs...) | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,65 @@ | ||
| package funcs | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "reflect" | ||
| "strings" | ||
| ) | ||
|
|
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| var _ fmt.Stringer = (*namespace)(nil) | ||
|
|
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| type namespace struct { | ||
| self any //must be pointer to outer struct | ||
| } | ||
|
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| func (n *namespace) String() string { | ||
| ns := n.self | ||
| if ns == nil { | ||
| return "<namespace>" | ||
| } | ||
|
|
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| nsType := reflect.TypeOf(ns) | ||
| if nsType.Kind() != reflect.Pointer || nsType.Elem().Kind() != reflect.Struct { | ||
| panic("invalid namespace type " + nsType.String() + ": must be pointer to struct") | ||
| } | ||
|
|
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| var public []string | ||
| public = appendPublicMethods(nsType, public) | ||
| nsType = nsType.Elem() | ||
| public = appendPublicFields(nsType, public) | ||
|
|
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| nsName := nsType.String() | ||
| nsName = strings.TrimPrefix(nsName, "funcs.") | ||
| nsName = strings.TrimSuffix(nsName, "Funcs") | ||
|
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| return fmt.Sprintf("<namespace %s %s>", nsName, public) | ||
| } | ||
|
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| func appendPublicFields(nsType reflect.Type, public []string) []string { | ||
| for _, field := range reflect.VisibleFields(nsType) { | ||
| if !field.IsExported() { | ||
| continue | ||
| } | ||
|
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| public = append(public, field.Name) | ||
| } | ||
|
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| return public | ||
| } | ||
|
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| func appendPublicMethods(nsType reflect.Type, public []string) []string { | ||
| for i := range nsType.NumMethod() { | ||
| method := nsType.Method(i) | ||
| if !method.IsExported() { | ||
| continue | ||
| } | ||
|
|
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| if method.Name == "String" && nsType.Implements(reflect.TypeFor[fmt.Stringer]()) { | ||
| continue | ||
| } | ||
|
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| public = append(public, method.Name) | ||
| } | ||
|
|
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| return public | ||
| } |
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