github.com/sagernet/sing-box@v1.9.0-rc.20/log/nop.go (about)

     1  package log
     2  
     3  import (
     4  	"context"
     5  	"os"
     6  
     7  	"github.com/sagernet/sing/common/observable"
     8  )
     9  
    10  var _ ObservableFactory = (*nopFactory)(nil)
    11  
    12  type nopFactory struct{}
    13  
    14  func NewNOPFactory() ObservableFactory {
    15  	return (*nopFactory)(nil)
    16  }
    17  
    18  func (f *nopFactory) Start() error {
    19  	return nil
    20  }
    21  
    22  func (f *nopFactory) Close() error {
    23  	return nil
    24  }
    25  
    26  func (f *nopFactory) Level() Level {
    27  	return LevelTrace
    28  }
    29  
    30  func (f *nopFactory) SetLevel(level Level) {
    31  }
    32  
    33  func (f *nopFactory) Logger() ContextLogger {
    34  	return f
    35  }
    36  
    37  func (f *nopFactory) NewLogger(tag string) ContextLogger {
    38  	return f
    39  }
    40  
    41  func (f *nopFactory) Trace(args ...any) {
    42  }
    43  
    44  func (f *nopFactory) Debug(args ...any) {
    45  }
    46  
    47  func (f *nopFactory) Info(args ...any) {
    48  }
    49  
    50  func (f *nopFactory) Warn(args ...any) {
    51  }
    52  
    53  func (f *nopFactory) Error(args ...any) {
    54  }
    55  
    56  func (f *nopFactory) Fatal(args ...any) {
    57  }
    58  
    59  func (f *nopFactory) Panic(args ...any) {
    60  }
    61  
    62  func (f *nopFactory) TraceContext(ctx context.Context, args ...any) {
    63  }
    64  
    65  func (f *nopFactory) DebugContext(ctx context.Context, args ...any) {
    66  }
    67  
    68  func (f *nopFactory) InfoContext(ctx context.Context, args ...any) {
    69  }
    70  
    71  func (f *nopFactory) WarnContext(ctx context.Context, args ...any) {
    72  }
    73  
    74  func (f *nopFactory) ErrorContext(ctx context.Context, args ...any) {
    75  }
    76  
    77  func (f *nopFactory) FatalContext(ctx context.Context, args ...any) {
    78  }
    79  
    80  func (f *nopFactory) PanicContext(ctx context.Context, args ...any) {
    81  }
    82  
    83  func (f *nopFactory) Subscribe() (subscription observable.Subscription[Entry], done <-chan struct{}, err error) {
    84  	return nil, nil, os.ErrInvalid
    85  }
    86  
    87  func (f *nopFactory) UnSubscribe(subscription observable.Subscription[Entry]) {
    88  }