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Diffstat (limited to 'dependencies/pkg/mod/go.uber.org/zap@v1.27.0/field.go')
| -rw-r--r-- | dependencies/pkg/mod/go.uber.org/zap@v1.27.0/field.go | 615 |
1 files changed, 615 insertions, 0 deletions
diff --git a/dependencies/pkg/mod/go.uber.org/zap@v1.27.0/field.go b/dependencies/pkg/mod/go.uber.org/zap@v1.27.0/field.go new file mode 100644 index 0000000..6743930 --- /dev/null +++ b/dependencies/pkg/mod/go.uber.org/zap@v1.27.0/field.go @@ -0,0 +1,615 @@ +// 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" + "math" + "time" + + "go.uber.org/zap/internal/stacktrace" + "go.uber.org/zap/zapcore" +) + +// Field is an alias for Field. Aliasing this type dramatically +// improves the navigability of this package's API documentation. +type Field = zapcore.Field + +var ( + _minTimeInt64 = time.Unix(0, math.MinInt64) + _maxTimeInt64 = time.Unix(0, math.MaxInt64) +) + +// Skip constructs a no-op field, which is often useful when handling invalid +// inputs in other Field constructors. +func Skip() Field { + return Field{Type: zapcore.SkipType} +} + +// nilField returns a field which will marshal explicitly as nil. See motivation +// in https://github.com/uber-go/zap/issues/753 . If we ever make breaking +// changes and add zapcore.NilType and zapcore.ObjectEncoder.AddNil, the +// implementation here should be changed to reflect that. +func nilField(key string) Field { return Reflect(key, nil) } + +// Binary constructs a field that carries an opaque binary blob. +// +// Binary data is serialized in an encoding-appropriate format. For example, +// zap's JSON encoder base64-encodes binary blobs. To log UTF-8 encoded text, +// use ByteString. +func Binary(key string, val []byte) Field { + return Field{Key: key, Type: zapcore.BinaryType, Interface: val} +} + +// Bool constructs a field that carries a bool. +func Bool(key string, val bool) Field { + var ival int64 + if val { + ival = 1 + } + return Field{Key: key, Type: zapcore.BoolType, Integer: ival} +} + +// Boolp constructs a field that carries a *bool. The returned Field will safely +// and explicitly represent `nil` when appropriate. +func Boolp(key string, val *bool) Field { + if val == nil { + return nilField(key) + } + return Bool(key, *val) +} + +// ByteString constructs a field that carries UTF-8 encoded text as a []byte. +// To log opaque binary blobs (which aren't necessarily valid UTF-8), use +// Binary. +func ByteString(key string, val []byte) Field { + return Field{Key: key, Type: zapcore.ByteStringType, Interface: val} +} + +// Complex128 constructs a field that carries a complex number. Unlike most +// numeric fields, this costs an allocation (to convert the complex128 to +// interface{}). +func Complex128(key string, val complex128) Field { + return Field{Key: key, Type: zapcore.Complex128Type, Interface: val} +} + +// Complex128p constructs a field that carries a *complex128. The returned Field will safely +// and explicitly represent `nil` when appropriate. +func Complex128p(key string, val *complex128) Field { + if val == nil { + return nilField(key) + } + return Complex128(key, *val) +} + +// Complex64 constructs a field that carries a complex number. Unlike most +// numeric fields, this costs an allocation (to convert the complex64 to +// interface{}). +func Complex64(key string, val complex64) Field { + return Field{Key: key, Type: zapcore.Complex64Type, Interface: val} +} + +// Complex64p constructs a field that carries a *complex64. The returned Field will safely +// and explicitly represent `nil` when appropriate. +func Complex64p(key string, val *complex64) Field { + if val == nil { + return nilField(key) + } + return Complex64(key, *val) +} + +// Float64 constructs a field that carries a float64. The way the +// floating-point value is represented is encoder-dependent, so marshaling is +// necessarily lazy. +func Float64(key string, val float64) Field { + return Field{Key: key, Type: zapcore.Float64Type, Integer: int64(math.Float64bits(val))} +} + +// Float64p constructs a field that carries a *float64. The returned Field will safely +// and explicitly represent `nil` when appropriate. +func Float64p(key string, val *float64) Field { + if val == nil { + return nilField(key) + } + return Float64(key, *val) +} + +// Float32 constructs a field that carries a float32. The way the +// floating-point value is represented is encoder-dependent, so marshaling is +// necessarily lazy. +func Float32(key string, val float32) Field { + return Field{Key: key, Type: zapcore.Float32Type, Integer: int64(math.Float32bits(val))} +} + +// Float32p constructs a field that carries a *float32. The returned Field will safely +// and explicitly represent `nil` when appropriate. +func Float32p(key string, val *float32) Field { + if val == nil { + return nilField(key) + } + return Float32(key, *val) +} + +// Int constructs a field with the given key and value. +func Int(key string, val int) Field { + return Int64(key, int64(val)) +} + +// Intp constructs a field that carries a *int. The returned Field will safely +// and explicitly represent `nil` when appropriate. +func Intp(key string, val *int) Field { + if val == nil { + return nilField(key) + } + return Int(key, *val) +} + +// Int64 constructs a field with the given key and value. +func Int64(key string, val int64) Field { + return Field{Key: key, Type: zapcore.Int64Type, Integer: val} +} + +// Int64p constructs a field that carries a *int64. The returned Field will safely +// and explicitly represent `nil` when appropriate. +func Int64p(key string, val *int64) Field { + if val == nil { + return nilField(key) + } + return Int64(key, *val) +} + +// Int32 constructs a field with the given key and value. +func Int32(key string, val int32) Field { + return Field{Key: key, Type: zapcore.Int32Type, Integer: int64(val)} +} + +// Int32p constructs a field that carries a *int32. The returned Field will safely +// and explicitly represent `nil` when appropriate. +func Int32p(key string, val *int32) Field { + if val == nil { + return nilField(key) + } + return Int32(key, *val) +} + +// Int16 constructs a field with the given key and value. +func Int16(key string, val int16) Field { + return Field{Key: key, Type: zapcore.Int16Type, Integer: int64(val)} +} + +// Int16p constructs a field that carries a *int16. The returned Field will safely +// and explicitly represent `nil` when appropriate. +func Int16p(key string, val *int16) Field { + if val == nil { + return nilField(key) + } + return Int16(key, *val) +} + +// Int8 constructs a field with the given key and value. +func Int8(key string, val int8) Field { + return Field{Key: key, Type: zapcore.Int8Type, Integer: int64(val)} +} + +// Int8p constructs a field that carries a *int8. The returned Field will safely +// and explicitly represent `nil` when appropriate. +func Int8p(key string, val *int8) Field { + if val == nil { + return nilField(key) + } + return Int8(key, *val) +} + +// String constructs a field with the given key and value. +func String(key string, val string) Field { + return Field{Key: key, Type: zapcore.StringType, String: val} +} + +// Stringp constructs a field that carries a *string. The returned Field will safely +// and explicitly represent `nil` when appropriate. +func Stringp(key string, val *string) Field { + if val == nil { + return nilField(key) + } + return String(key, *val) +} + +// Uint constructs a field with the given key and value. +func Uint(key string, val uint) Field { + return Uint64(key, uint64(val)) +} + +// Uintp constructs a field that carries a *uint. The returned Field will safely +// and explicitly represent `nil` when appropriate. +func Uintp(key string, val *uint) Field { + if val == nil { + return nilField(key) + } + return Uint(key, *val) +} + +// Uint64 constructs a field with the given key and value. +func Uint64(key string, val uint64) Field { + return Field{Key: key, Type: zapcore.Uint64Type, Integer: int64(val)} +} + +// Uint64p constructs a field that carries a *uint64. The returned Field will safely +// and explicitly represent `nil` when appropriate. +func Uint64p(key string, val *uint64) Field { + if val == nil { + return nilField(key) + } + return Uint64(key, *val) +} + +// Uint32 constructs a field with the given key and value. +func Uint32(key string, val uint32) Field { + return Field{Key: key, Type: zapcore.Uint32Type, Integer: int64(val)} +} + +// Uint32p constructs a field that carries a *uint32. The returned Field will safely +// and explicitly represent `nil` when appropriate. +func Uint32p(key string, val *uint32) Field { + if val == nil { + return nilField(key) + } + return Uint32(key, *val) +} + +// Uint16 constructs a field with the given key and value. +func Uint16(key string, val uint16) Field { + return Field{Key: key, Type: zapcore.Uint16Type, Integer: int64(val)} +} + +// Uint16p constructs a field that carries a *uint16. The returned Field will safely +// and explicitly represent `nil` when appropriate. +func Uint16p(key string, val *uint16) Field { + if val == nil { + return nilField(key) + } + return Uint16(key, *val) +} + +// Uint8 constructs a field with the given key and value. +func Uint8(key string, val uint8) Field { + return Field{Key: key, Type: zapcore.Uint8Type, Integer: int64(val)} +} + +// Uint8p constructs a field that carries a *uint8. The returned Field will safely +// and explicitly represent `nil` when appropriate. +func Uint8p(key string, val *uint8) Field { + if val == nil { + return nilField(key) + } + return Uint8(key, *val) +} + +// Uintptr constructs a field with the given key and value. +func Uintptr(key string, val uintptr) Field { + return Field{Key: key, Type: zapcore.UintptrType, Integer: int64(val)} +} + +// Uintptrp constructs a field that carries a *uintptr. The returned Field will safely +// and explicitly represent `nil` when appropriate. +func Uintptrp(key string, val *uintptr) Field { + if val == nil { + return nilField(key) + } + return Uintptr(key, *val) +} + +// Reflect constructs a field with the given key and an arbitrary object. It uses +// an encoding-appropriate, reflection-based function to lazily serialize nearly +// any object into the logging context, but it's relatively slow and +// allocation-heavy. Outside tests, Any is always a better choice. +// +// If encoding fails (e.g., trying to serialize a map[int]string to JSON), Reflect +// includes the error message in the final log output. +func Reflect(key string, val interface{}) Field { + return Field{Key: key, Type: zapcore.ReflectType, Interface: val} +} + +// Namespace creates a named, isolated scope within the logger's context. All +// subsequent fields will be added to the new namespace. +// +// This helps prevent key collisions when injecting loggers into sub-components +// or third-party libraries. +func Namespace(key string) Field { + return Field{Key: key, Type: zapcore.NamespaceType} +} + +// Stringer constructs a field with the given key and the output of the value's +// String method. The Stringer's String method is called lazily. +func Stringer(key string, val fmt.Stringer) Field { + return Field{Key: key, Type: zapcore.StringerType, Interface: val} +} + +// Time constructs a Field with the given key and value. The encoder +// controls how the time is serialized. +func Time(key string, val time.Time) Field { + if val.Before(_minTimeInt64) || val.After(_maxTimeInt64) { + return Field{Key: key, Type: zapcore.TimeFullType, Interface: val} + } + return Field{Key: key, Type: zapcore.TimeType, Integer: val.UnixNano(), Interface: val.Location()} +} + +// Timep constructs a field that carries a *time.Time. The returned Field will safely +// and explicitly represent `nil` when appropriate. +func Timep(key string, val *time.Time) Field { + if val == nil { + return nilField(key) + } + return Time(key, *val) +} + +// Stack constructs a field that stores a stacktrace of the current goroutine +// under provided key. Keep in mind that taking a stacktrace is eager and +// expensive (relatively speaking); this function both makes an allocation and +// takes about two microseconds. +func Stack(key string) Field { + return StackSkip(key, 1) // skip Stack +} + +// StackSkip constructs a field similarly to Stack, but also skips the given +// number of frames from the top of the stacktrace. +func StackSkip(key string, skip int) Field { + // Returning the stacktrace as a string costs an allocation, but saves us + // from expanding the zapcore.Field union struct to include a byte slice. Since + // taking a stacktrace is already so expensive (~10us), the extra allocation + // is okay. + return String(key, stacktrace.Take(skip+1)) // skip StackSkip +} + +// Duration constructs a field with the given key and value. The encoder +// controls how the duration is serialized. +func Duration(key string, val time.Duration) Field { + return Field{Key: key, Type: zapcore.DurationType, Integer: int64(val)} +} + +// Durationp constructs a field that carries a *time.Duration. The returned Field will safely +// and explicitly represent `nil` when appropriate. +func Durationp(key string, val *time.Duration) Field { + if val == nil { + return nilField(key) + } + return Duration(key, *val) +} + +// Object constructs a field with the given key and ObjectMarshaler. It +// provides a flexible, but still type-safe and efficient, way to add map- or +// struct-like user-defined types to the logging context. The struct's +// MarshalLogObject method is called lazily. +func Object(key string, val zapcore.ObjectMarshaler) Field { + return Field{Key: key, Type: zapcore.ObjectMarshalerType, Interface: val} +} + +// Inline constructs a Field that is similar to Object, but it +// will add the elements of the provided ObjectMarshaler to the +// current namespace. +func Inline(val zapcore.ObjectMarshaler) Field { + return zapcore.Field{ + Type: zapcore.InlineMarshalerType, + Interface: val, + } +} + +// Dict constructs a field containing the provided key-value pairs. +// It acts similar to [Object], but with the fields specified as arguments. +func Dict(key string, val ...Field) Field { + return dictField(key, val) +} + +// We need a function with the signature (string, T) for zap.Any. +func dictField(key string, val []Field) Field { + return Object(key, dictObject(val)) +} + +type dictObject []Field + +func (d dictObject) MarshalLogObject(enc zapcore.ObjectEncoder) error { + for _, f := range d { + f.AddTo(enc) + } + return nil +} + +// We discovered an issue where zap.Any can cause a performance degradation +// when used in new goroutines. +// +// This happens because the compiler assigns 4.8kb (one zap.Field per arm of +// switch statement) of stack space for zap.Any when it takes the form: +// +// switch v := v.(type) { +// case string: +// return String(key, v) +// case int: +// return Int(key, v) +// // ... +// default: +// return Reflect(key, v) +// } +// +// To avoid this, we use the type switch to assign a value to a single local variable +// and then call a function on it. +// The local variable is just a function reference so it doesn't allocate +// when converted to an interface{}. +// +// A fair bit of experimentation went into this. +// See also: +// +// - https://github.com/uber-go/zap/pull/1301 +// - https://github.com/uber-go/zap/pull/1303 +// - https://github.com/uber-go/zap/pull/1304 +// - https://github.com/uber-go/zap/pull/1305 +// - https://github.com/uber-go/zap/pull/1308 +// +// See https://github.com/golang/go/issues/62077 for upstream issue. +type anyFieldC[T any] func(string, T) Field + +func (f anyFieldC[T]) Any(key string, val any) Field { + v, _ := val.(T) + // val is guaranteed to be a T, except when it's nil. + return f(key, v) +} + +// Any takes a key and an arbitrary value and chooses the best way to represent +// them as a field, falling back to a reflection-based approach only if +// necessary. +// +// Since byte/uint8 and rune/int32 are aliases, Any can't differentiate between +// them. To minimize surprises, []byte values are treated as binary blobs, byte +// values are treated as uint8, and runes are always treated as integers. +func Any(key string, value interface{}) Field { + var c interface{ Any(string, any) Field } + + switch value.(type) { + case zapcore.ObjectMarshaler: + c = anyFieldC[zapcore.ObjectMarshaler](Object) + case zapcore.ArrayMarshaler: + c = anyFieldC[zapcore.ArrayMarshaler](Array) + case []Field: + c = anyFieldC[[]Field](dictField) + case bool: + c = anyFieldC[bool](Bool) + case *bool: + c = anyFieldC[*bool](Boolp) + case []bool: + c = anyFieldC[[]bool](Bools) + case complex128: + c = anyFieldC[complex128](Complex128) + case *complex128: + c = anyFieldC[*complex128](Complex128p) + case []complex128: + c = anyFieldC[[]complex128](Complex128s) + case complex64: + c = anyFieldC[complex64](Complex64) + case *complex64: + c = anyFieldC[*complex64](Complex64p) + case []complex64: + c = anyFieldC[[]complex64](Complex64s) + case float64: + c = anyFieldC[float64](Float64) + case *float64: + c = anyFieldC[*float64](Float64p) + case []float64: + c = anyFieldC[[]float64](Float64s) + case float32: + c = anyFieldC[float32](Float32) + case *float32: + c = anyFieldC[*float32](Float32p) + case []float32: + c = anyFieldC[[]float32](Float32s) + case int: + c = anyFieldC[int](Int) + case *int: + c = anyFieldC[*int](Intp) + case []int: + c = anyFieldC[[]int](Ints) + case int64: + c = anyFieldC[int64](Int64) + case *int64: + c = anyFieldC[*int64](Int64p) + case []int64: + c = anyFieldC[[]int64](Int64s) + case int32: + c = anyFieldC[int32](Int32) + case *int32: + c = anyFieldC[*int32](Int32p) + case []int32: + c = anyFieldC[[]int32](Int32s) + case int16: + c = anyFieldC[int16](Int16) + case *int16: + c = anyFieldC[*int16](Int16p) + case []int16: + c = anyFieldC[[]int16](Int16s) + case int8: + c = anyFieldC[int8](Int8) + case *int8: + c = anyFieldC[*int8](Int8p) + case []int8: + c = anyFieldC[[]int8](Int8s) + case string: + c = anyFieldC[string](String) + case *string: + c = anyFieldC[*string](Stringp) + case []string: + c = anyFieldC[[]string](Strings) + case uint: + c = anyFieldC[uint](Uint) + case *uint: + c = anyFieldC[*uint](Uintp) + case []uint: + c = anyFieldC[[]uint](Uints) + case uint64: + c = anyFieldC[uint64](Uint64) + case *uint64: + c = anyFieldC[*uint64](Uint64p) + case []uint64: + c = anyFieldC[[]uint64](Uint64s) + case uint32: + c = anyFieldC[uint32](Uint32) + case *uint32: + c = anyFieldC[*uint32](Uint32p) + case []uint32: + c = anyFieldC[[]uint32](Uint32s) + case uint16: + c = anyFieldC[uint16](Uint16) + case *uint16: + c = anyFieldC[*uint16](Uint16p) + case []uint16: + c = anyFieldC[[]uint16](Uint16s) + case uint8: + c = anyFieldC[uint8](Uint8) + case *uint8: + c = anyFieldC[*uint8](Uint8p) + case []byte: + c = anyFieldC[[]byte](Binary) + case uintptr: + c = anyFieldC[uintptr](Uintptr) + case *uintptr: + c = anyFieldC[*uintptr](Uintptrp) + case []uintptr: + c = anyFieldC[[]uintptr](Uintptrs) + case time.Time: + c = anyFieldC[time.Time](Time) + case *time.Time: + c = anyFieldC[*time.Time](Timep) + case []time.Time: + c = anyFieldC[[]time.Time](Times) + case time.Duration: + c = anyFieldC[time.Duration](Duration) + case *time.Duration: + c = anyFieldC[*time.Duration](Durationp) + case []time.Duration: + c = anyFieldC[[]time.Duration](Durations) + case error: + c = anyFieldC[error](NamedError) + case []error: + c = anyFieldC[[]error](Errors) + case fmt.Stringer: + c = anyFieldC[fmt.Stringer](Stringer) + default: + c = anyFieldC[any](Reflect) + } + + return c.Any(key, value) +} |