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Diffstat (limited to '')
-rw-r--r-- | dependencies/pkg/mod/go.uber.org/zap@v1.23.0/sugar.go | 393 |
1 files changed, 393 insertions, 0 deletions
diff --git a/dependencies/pkg/mod/go.uber.org/zap@v1.23.0/sugar.go b/dependencies/pkg/mod/go.uber.org/zap@v1.23.0/sugar.go new file mode 100644 index 0000000..c450b2d --- /dev/null +++ b/dependencies/pkg/mod/go.uber.org/zap@v1.23.0/sugar.go @@ -0,0 +1,393 @@ +// Copyright (c) 2016 Uber Technologies, Inc. +// +// Permission is hereby granted, free of charge, to any person obtaining a copy +// of this software and associated documentation files (the "Software"), to deal +// in the Software without restriction, including without limitation the rights +// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +// copies of the Software, and to permit persons to whom the Software is +// furnished to do so, subject to the following conditions: +// +// The above copyright notice and this permission notice shall be included in +// all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +// THE SOFTWARE. + +package zap + +import ( + "fmt" + + "go.uber.org/zap/zapcore" + + "go.uber.org/multierr" +) + +const ( + _oddNumberErrMsg = "Ignored key without a value." + _nonStringKeyErrMsg = "Ignored key-value pairs with non-string keys." +) + +// A SugaredLogger wraps the base Logger functionality in a slower, but less +// verbose, API. Any Logger can be converted to a SugaredLogger with its Sugar +// method. +// +// Unlike the Logger, the SugaredLogger doesn't insist on structured logging. +// For each log level, it exposes four methods: +// +// - methods named after the log level for log.Print-style logging +// - methods ending in "w" for loosely-typed structured logging +// - methods ending in "f" for log.Printf-style logging +// - methods ending in "ln" for log.Println-style logging +// +// For example, the methods for InfoLevel are: +// +// Info(...any) Print-style logging +// Infow(...any) Structured logging (read as "info with") +// Infof(string, ...any) Printf-style logging +// Infoln(...any) Println-style logging +type SugaredLogger struct { + base *Logger +} + +// Desugar unwraps a SugaredLogger, exposing the original Logger. Desugaring +// is quite inexpensive, so it's reasonable for a single application to use +// both Loggers and SugaredLoggers, converting between them on the boundaries +// of performance-sensitive code. +func (s *SugaredLogger) Desugar() *Logger { + base := s.base.clone() + base.callerSkip -= 2 + return base +} + +// Named adds a sub-scope to the logger's name. See Logger.Named for details. +func (s *SugaredLogger) Named(name string) *SugaredLogger { + return &SugaredLogger{base: s.base.Named(name)} +} + +// WithOptions clones the current SugaredLogger, applies the supplied Options, +// and returns the result. It's safe to use concurrently. +func (s *SugaredLogger) WithOptions(opts ...Option) *SugaredLogger { + base := s.base.clone() + for _, opt := range opts { + opt.apply(base) + } + return &SugaredLogger{base: base} +} + +// With adds a variadic number of fields to the logging context. It accepts a +// mix of strongly-typed Field objects and loosely-typed key-value pairs. When +// processing pairs, the first element of the pair is used as the field key +// and the second as the field value. +// +// For example, +// +// sugaredLogger.With( +// "hello", "world", +// "failure", errors.New("oh no"), +// Stack(), +// "count", 42, +// "user", User{Name: "alice"}, +// ) +// +// is the equivalent of +// +// unsugared.With( +// String("hello", "world"), +// String("failure", "oh no"), +// Stack(), +// Int("count", 42), +// Object("user", User{Name: "alice"}), +// ) +// +// Note that the keys in key-value pairs should be strings. In development, +// passing a non-string key panics. In production, the logger is more +// forgiving: a separate error is logged, but the key-value pair is skipped +// and execution continues. Passing an orphaned key triggers similar behavior: +// panics in development and errors in production. +func (s *SugaredLogger) With(args ...interface{}) *SugaredLogger { + return &SugaredLogger{base: s.base.With(s.sweetenFields(args)...)} +} + +// Debug uses fmt.Sprint to construct and log a message. +func (s *SugaredLogger) Debug(args ...interface{}) { + s.log(DebugLevel, "", args, nil) +} + +// Info uses fmt.Sprint to construct and log a message. +func (s *SugaredLogger) Info(args ...interface{}) { + s.log(InfoLevel, "", args, nil) +} + +// Warn uses fmt.Sprint to construct and log a message. +func (s *SugaredLogger) Warn(args ...interface{}) { + s.log(WarnLevel, "", args, nil) +} + +// Error uses fmt.Sprint to construct and log a message. +func (s *SugaredLogger) Error(args ...interface{}) { + s.log(ErrorLevel, "", args, nil) +} + +// DPanic uses fmt.Sprint to construct and log a message. In development, the +// logger then panics. (See DPanicLevel for details.) +func (s *SugaredLogger) DPanic(args ...interface{}) { + s.log(DPanicLevel, "", args, nil) +} + +// Panic uses fmt.Sprint to construct and log a message, then panics. +func (s *SugaredLogger) Panic(args ...interface{}) { + s.log(PanicLevel, "", args, nil) +} + +// Fatal uses fmt.Sprint to construct and log a message, then calls os.Exit. +func (s *SugaredLogger) Fatal(args ...interface{}) { + s.log(FatalLevel, "", args, nil) +} + +// Debugf uses fmt.Sprintf to log a templated message. +func (s *SugaredLogger) Debugf(template string, args ...interface{}) { + s.log(DebugLevel, template, args, nil) +} + +// Infof uses fmt.Sprintf to log a templated message. +func (s *SugaredLogger) Infof(template string, args ...interface{}) { + s.log(InfoLevel, template, args, nil) +} + +// Warnf uses fmt.Sprintf to log a templated message. +func (s *SugaredLogger) Warnf(template string, args ...interface{}) { + s.log(WarnLevel, template, args, nil) +} + +// Errorf uses fmt.Sprintf to log a templated message. +func (s *SugaredLogger) Errorf(template string, args ...interface{}) { + s.log(ErrorLevel, template, args, nil) +} + +// DPanicf uses fmt.Sprintf to log a templated message. In development, the +// logger then panics. (See DPanicLevel for details.) +func (s *SugaredLogger) DPanicf(template string, args ...interface{}) { + s.log(DPanicLevel, template, args, nil) +} + +// Panicf uses fmt.Sprintf to log a templated message, then panics. +func (s *SugaredLogger) Panicf(template string, args ...interface{}) { + s.log(PanicLevel, template, args, nil) +} + +// Fatalf uses fmt.Sprintf to log a templated message, then calls os.Exit. +func (s *SugaredLogger) Fatalf(template string, args ...interface{}) { + s.log(FatalLevel, template, args, nil) +} + +// Debugw logs a message with some additional context. The variadic key-value +// pairs are treated as they are in With. +// +// When debug-level logging is disabled, this is much faster than +// +// s.With(keysAndValues).Debug(msg) +func (s *SugaredLogger) Debugw(msg string, keysAndValues ...interface{}) { + s.log(DebugLevel, msg, nil, keysAndValues) +} + +// Infow logs a message with some additional context. The variadic key-value +// pairs are treated as they are in With. +func (s *SugaredLogger) Infow(msg string, keysAndValues ...interface{}) { + s.log(InfoLevel, msg, nil, keysAndValues) +} + +// Warnw logs a message with some additional context. The variadic key-value +// pairs are treated as they are in With. +func (s *SugaredLogger) Warnw(msg string, keysAndValues ...interface{}) { + s.log(WarnLevel, msg, nil, keysAndValues) +} + +// Errorw logs a message with some additional context. The variadic key-value +// pairs are treated as they are in With. +func (s *SugaredLogger) Errorw(msg string, keysAndValues ...interface{}) { + s.log(ErrorLevel, msg, nil, keysAndValues) +} + +// DPanicw logs a message with some additional context. In development, the +// logger then panics. (See DPanicLevel for details.) The variadic key-value +// pairs are treated as they are in With. +func (s *SugaredLogger) DPanicw(msg string, keysAndValues ...interface{}) { + s.log(DPanicLevel, msg, nil, keysAndValues) +} + +// Panicw logs a message with some additional context, then panics. The +// variadic key-value pairs are treated as they are in With. +func (s *SugaredLogger) Panicw(msg string, keysAndValues ...interface{}) { + s.log(PanicLevel, msg, nil, keysAndValues) +} + +// Fatalw logs a message with some additional context, then calls os.Exit. The +// variadic key-value pairs are treated as they are in With. +func (s *SugaredLogger) Fatalw(msg string, keysAndValues ...interface{}) { + s.log(FatalLevel, msg, nil, keysAndValues) +} + +// Debugln uses fmt.Sprintln to construct and log a message. +func (s *SugaredLogger) Debugln(args ...interface{}) { + s.logln(DebugLevel, args, nil) +} + +// Infoln uses fmt.Sprintln to construct and log a message. +func (s *SugaredLogger) Infoln(args ...interface{}) { + s.logln(InfoLevel, args, nil) +} + +// Warnln uses fmt.Sprintln to construct and log a message. +func (s *SugaredLogger) Warnln(args ...interface{}) { + s.logln(WarnLevel, args, nil) +} + +// Errorln uses fmt.Sprintln to construct and log a message. +func (s *SugaredLogger) Errorln(args ...interface{}) { + s.logln(ErrorLevel, args, nil) +} + +// DPanicln uses fmt.Sprintln to construct and log a message. In development, the +// logger then panics. (See DPanicLevel for details.) +func (s *SugaredLogger) DPanicln(args ...interface{}) { + s.logln(DPanicLevel, args, nil) +} + +// Panicln uses fmt.Sprintln to construct and log a message, then panics. +func (s *SugaredLogger) Panicln(args ...interface{}) { + s.logln(PanicLevel, args, nil) +} + +// Fatalln uses fmt.Sprintln to construct and log a message, then calls os.Exit. +func (s *SugaredLogger) Fatalln(args ...interface{}) { + s.logln(FatalLevel, args, nil) +} + +// Sync flushes any buffered log entries. +func (s *SugaredLogger) Sync() error { + return s.base.Sync() +} + +// log message with Sprint, Sprintf, or neither. +func (s *SugaredLogger) log(lvl zapcore.Level, template string, fmtArgs []interface{}, context []interface{}) { + // If logging at this level is completely disabled, skip the overhead of + // string formatting. + if lvl < DPanicLevel && !s.base.Core().Enabled(lvl) { + return + } + + msg := getMessage(template, fmtArgs) + if ce := s.base.Check(lvl, msg); ce != nil { + ce.Write(s.sweetenFields(context)...) + } +} + +// logln message with Sprintln +func (s *SugaredLogger) logln(lvl zapcore.Level, fmtArgs []interface{}, context []interface{}) { + if lvl < DPanicLevel && !s.base.Core().Enabled(lvl) { + return + } + + msg := getMessageln(fmtArgs) + if ce := s.base.Check(lvl, msg); ce != nil { + ce.Write(s.sweetenFields(context)...) + } +} + +// getMessage format with Sprint, Sprintf, or neither. +func getMessage(template string, fmtArgs []interface{}) string { + if len(fmtArgs) == 0 { + return template + } + + if template != "" { + return fmt.Sprintf(template, fmtArgs...) + } + + if len(fmtArgs) == 1 { + if str, ok := fmtArgs[0].(string); ok { + return str + } + } + return fmt.Sprint(fmtArgs...) +} + +// getMessageln format with Sprintln. +func getMessageln(fmtArgs []interface{}) string { + msg := fmt.Sprintln(fmtArgs...) + return msg[:len(msg)-1] +} + +func (s *SugaredLogger) sweetenFields(args []interface{}) []Field { + if len(args) == 0 { + return nil + } + + // Allocate enough space for the worst case; if users pass only structured + // fields, we shouldn't penalize them with extra allocations. + fields := make([]Field, 0, len(args)) + var invalid invalidPairs + + for i := 0; i < len(args); { + // This is a strongly-typed field. Consume it and move on. + if f, ok := args[i].(Field); ok { + fields = append(fields, f) + i++ + continue + } + + // Make sure this element isn't a dangling key. + if i == len(args)-1 { + s.base.Error(_oddNumberErrMsg, Any("ignored", args[i])) + break + } + + // Consume this value and the next, treating them as a key-value pair. If the + // key isn't a string, add this pair to the slice of invalid pairs. + key, val := args[i], args[i+1] + if keyStr, ok := key.(string); !ok { + // Subsequent errors are likely, so allocate once up front. + if cap(invalid) == 0 { + invalid = make(invalidPairs, 0, len(args)/2) + } + invalid = append(invalid, invalidPair{i, key, val}) + } else { + fields = append(fields, Any(keyStr, val)) + } + i += 2 + } + + // If we encountered any invalid key-value pairs, log an error. + if len(invalid) > 0 { + s.base.Error(_nonStringKeyErrMsg, Array("invalid", invalid)) + } + return fields +} + +type invalidPair struct { + position int + key, value interface{} +} + +func (p invalidPair) MarshalLogObject(enc zapcore.ObjectEncoder) error { + enc.AddInt64("position", int64(p.position)) + Any("key", p.key).AddTo(enc) + Any("value", p.value).AddTo(enc) + return nil +} + +type invalidPairs []invalidPair + +func (ps invalidPairs) MarshalLogArray(enc zapcore.ArrayEncoder) error { + var err error + for i := range ps { + err = multierr.Append(err, enc.AppendObject(ps[i])) + } + return err +} |