utils

package
v1.0.3 Latest Latest
Warning

This package is not in the latest version of its module.

 Go to latest Published: Nov 7, 2023 License: MIT Imports: 44 Imported by: 6

Documentation

Index

Constants

View Source 
const (
	UnmarshalTypeJson unmarshalType = "json"
	UnmarshalTypeYaml unmarshalType = "yaml"
	UnmarshalTypeToml unmarshalType = "toml"
)

Variables

View Source 
var (
	// BytesBufferPool 64 is bytes.Buffer smallBufferSize, which is an initial allocation minimal capacity.
	BytesBufferPool = NewPool(
		func() *bytes.Buffer { return bytes.NewBuffer(make([]byte, 0, 64)) },
		PoolableEvictFunc(poolBytesBufferEvict),
	)
	BytesPool = NewPool(
		func() poolBytes { return make([]byte, 0, 64) },
		PoolableEvictFunc(poolBytesEvict),
	)
)
View Source 
var (
	ErrEmptyArray = errors.New("empty array")
)
View Source 
var (
	ErrOutOfRange = errors.New("out of range")
)
View Source 
var LocalIP = &localIP{
	str: ClientIP(),
	bytes: func() []byte {
		reverse := func(bs []byte) {
			i, j := 0, len(bs)-1
			for i < j {
				bs[i], bs[j] = bs[j], bs[i]
				i++
				j--
			}
		}

		if ipAddr := ClientIP(); ipAddr != "" {
			realIP := []byte("000000000000")
			idx := 0
			for i := len(ipAddr) - 1; i >= 0; i-- {
				c := ipAddr[i]
				if c == '.' {
					idx = (((idx - 1) / 3) + 1) * 3
					continue
				}
				realIP[idx] = c
				idx++
			}
			reverse(realIP)
			return realIP
		}
		return []byte("000000000000")
	}(),
}

Functions

func AnyPtr 

func AnyPtr[T any](s T) *T

func ApplyOptions 

func ApplyOptions[T any](opts ...OptionExtender) (t *T)

func Catch 

func Catch(fn any) (isPanic bool, err error)

func CheckIfAny 

func CheckIfAny(fnList ...func() error) error

func ClientIP 

func ClientIP() (ip string)

func CloseAnyway 

func CloseAnyway[T any](closer T)

func ComparableToSortable 

func ComparableToSortable[T comparable](s T) (d any)

ComparableToSortable convert generic type to sortable type

func CryptoRandom 

func CryptoRandom(b []byte) (n int, err error)

func CryptoRandomBytes 

func CryptoRandomBytes(size int) ([]byte, error)

func CryptoRandomLetterAndNumber 

func CryptoRandomLetterAndNumber(n int) (string, error)

func CryptoRandomNumbers 

func CryptoRandomNumbers(n int) (string, error)

func DecimalPlaces 

func DecimalPlaces(num float64) int

func EmbedsType 

func EmbedsType(i any, e reflect.Type) bool

EmbedsType Returns true if t embeds e or if any of the types embedded by t embed e. Forked from go.uber.org/dig@v1.16.1/inout.embedsType

func ErrIgnore 

func ErrIgnore(src error, ignored ...error) (dst error)

func FlushAnyway 

func FlushAnyway[T any](flusher T)

func FuzzyKeyword 

func FuzzyKeyword(keyword string) []string

func GetCaller 

func GetCaller(maximumCallerDepth int, opts ...OptionExtender) (frame *runtime.Frame)

GetCaller retrieves the name after stack skip

func GetCtxAny 

func GetCtxAny[T any](ctx context.Context, key string, args ...T) (val T)

GetCtxAny with a default value

func GetFieldByTag 

func GetFieldByTag(data any, tag, key string) (r reflect.Value, e error)

func GetFieldByTagWithKeys 

func GetFieldByTagWithKeys(data any, tag string, keys []string) (r reflect.Value, e error)

func GetFieldTagValue 

func GetFieldTagValue(data any, tag string, pattern *regexp.Regexp) (tagValue string, e error)

func GetFuncName 

func GetFuncName(fn any) string

func GetGormColumnValue 

func GetGormColumnValue(data any, column string) (columnVal reflect.Value, ok bool)

func GetTime 

func GetTime(timestampMs int64) time.Time

GetTime 将毫秒级的时间戳转换成时间

func GetTimeStamp 

func GetTimeStamp(t time.Time) int64

GetTimeStamp 将时间转换成毫秒级的时间戳

func HostIPInDocker 

func HostIPInDocker() (ip string)

func IfAny 

func IfAny(fnList ...func() bool)

func IgnoreEnumStringCase 

func IgnoreEnumStringCase() enumStringOptFn

func IndirectType 

func IndirectType(s reflect.Type) (d reflect.Type)

func IndirectValue 

func IndirectValue(s reflect.Value) (d reflect.Value)

func IntNarrow 

func IntNarrow(num int) (result any)

func IsBlank 

func IsBlank(object any) bool

IsBlank gets whether the specified object is considered empty or not. fork from: github.com/stretchr/testify@v1.8.0/assert/assertions.go

func IsChannelClosed 

func IsChannelClosed[T any](ch <-chan T) (data T, ok bool)

func IsInRange 

func IsInRange[T constraint.Sortable](num, min, max T) bool

func IsStrBlank 

func IsStrBlank(s string) bool

func IsStrNotBlank 

func IsStrNotBlank(s string) bool

func IsStrPtrBlank 

func IsStrPtrBlank(s *string) bool

func IsStrPtrNotBlank 

func IsStrPtrNotBlank(s *string) bool

func IsValidTimestamp 

func IsValidTimestamp(timeMS int64) bool

IsValidTimestamp 返回 false 表示无法对毫秒时间戳和 time.Time 进行精确转换

func LookupByFuzzyKeyword 

func LookupByFuzzyKeyword[T any, F lookupByFuzzyKeywordFuncType[T]](lookup F, keyword string) (v T)

func LoopWithInterval 

func LoopWithInterval(ctx context.Context, interval time.Duration,
	fn func() bool, opts ...OptionExtender) (err error)

LoopWithInterval Deprecated, try github.com/rican7/retry.Retry instead

func MapKeys 

func MapKeys[T comparable, K any](m map[T]K) (keys []T)

func MapMerge 

func MapMerge[T comparable, K any](a, b map[T]K) (r map[T]K)

func MapSliceToMap 

func MapSliceToMap[T comparable, K any](s []map[T]K) (d map[T]K)

func MapValues 

func MapValues[T comparable, K any](m map[T]K) (vals []K)

func MapValuesByKeys 

func MapValuesByKeys[T comparable, K any, TS ~[]T](m map[T]K, keys TS) (vals []K)

func Max 

func Max[T constraint.Sortable](arr ...T) T

func Min 

func Min[T constraint.Sortable](arr ...T) T

func Must 

func Must[T any](out T, err error) T

func MustJsonMarshal 

func MustJsonMarshal(s any) []byte

func MustJsonMarshalString 

func MustJsonMarshalString(s any) string

func MustJsonUnmarshal 

func MustJsonUnmarshal[T any](s []byte) (t *T)

func MustOk 

func MustOk[T any](out T, ok bool) T

func MustSuccess 

func MustSuccess(err error)

func NewSafeRand 

func NewSafeRand(seed int64) *rand.Rand

func NextJitterIntervalFunc 

func NextJitterIntervalFunc(base, max time.Duration, ratio, exp float64, symmetric bool) func() time.Duration

NextJitterIntervalFunc generate a jitter and exponential power duration, inspired by net/http.(*Server).Shutdown

func NginxID 

func NginxID() string

func ParseTag 

func ParseTag(data any, opts ...OptionExtender) (err error)

func ParseVariadicFuncResult 

func ParseVariadicFuncResult[T any](rs []reflect.Value, idx int) (t T)

func Random 

func Random(b []byte, seed int64) (n int, err error)

func RandomLetterAndNumber 

func RandomLetterAndNumber(n int) string

func RandomNumbers 

func RandomNumbers(n int) string

func SetCtxAny 

func SetCtxAny[T any](ctx context.Context, key string, val T) context.Context

SetCtxAny with any value

func ShortUUID 

func ShortUUID() string

ShortUUID returns a new short UUID with base57

func SliceConvert 

func SliceConvert(src any, dstType reflect.Type) any

SliceConvert >= go1.18 recommend to use SliceMapping

func SliceMapping 

func SliceMapping[T, K any](s []T, mapFn func(t T) K) (d []K)

SliceMapping Mapping slice convert go1.18 version

func SliceRemove 

func SliceRemove[T any, TS ~[]T](s TS, filter func(t T) bool) (d TS)

func SliceReverse 

func SliceReverse[T any, TS ~[]T](s TS)

func SliceToMap 

func SliceToMap[K comparable, V any](s []V, groupFn func(v V) K) (d map[K]V)

func Sort 

func Sort[E any](data []E, cmp func(e1, e2 E) int)

func SortStable 

func SortStable[E any](data []E, cmp func(e1, e2 E) int)

func SortableToGeneric 

func SortableToGeneric[T, K constraint.Sortable](s T) (d K)

SortableToGeneric convert sortable type to generic type

func Timeout 

func Timeout(timeout time.Duration, opts ...OptionExtender) bool

func TravelCtx 

func TravelCtx(child context.Context, fn func(ctx context.Context) bool)

TravelCtx context parent traversal

func TraverseValue 

func TraverseValue(data any, indirect bool, handler func(reflect.StructField, reflect.Value) (end, stepIn bool))

func ULID 

func ULID() string

ULID returns a new ULID.

func UUID 

func UUID() string

func UUID20 

func UUID20() string

func UUID22 

func UUID22() string

func UUID_ 

func UUID_() string

UUID_ nolint: revive // uuid without hyphen function issue

func UintNarrow 

func UintNarrow(num uint) (result any)

func Unmarshal 

func Unmarshal(s, d any, tag unmarshalType) (err error)

func UnsafeBytesToString 

func UnsafeBytesToString(b []byte) string

UnsafeBytesToString converts byte slice to string without a memory allocation. Fork from github.com/gin-gonic/gin@v1.7.7/internal/bytesconv/bytesconv.go

func UnsafeStringToBytes 

func UnsafeStringToBytes(s string) []byte

UnsafeStringToBytes converts string to byte slice without a memory allocation. Fork from github.com/gin-gonic/gin@v1.7.7/internal/bytesconv/bytesconv.go

func WrapFunc 

func WrapFunc(fn any) func(...any)

func WrapFunc1 

func WrapFunc1[T any](fn any) func(...any) T

func WrapFunc2 

func WrapFunc2[T1, T2 any](fn any) func(...any) (T1, T2)

WrapFunc2 wrap a function with any number inputs and 2 generic type return, return nothing if function has 0 outputs return T1 if function only has 1 output return function first output and last output if function has more than 2 outputs

func WrapFunc3 

func WrapFunc3[T1, T2, T3 any](fn any) func(...any) (T1, T2, T3)

func WrapFunc4 

func WrapFunc4[T1, T2, T3, T4 any](fn any) func(...any) (T1, T2, T3, T4)

func WrapFunc5 

func WrapFunc5[T1, T2, T3, T4, T5 any](fn any) func(...any) (T1, T2, T3, T4, T5)

func WrapFunc6 

func WrapFunc6[T1, T2, T3, T4, T5, T6 any](fn any) func(...any) (T1, T2, T3, T4, T5, T6)

func WrapFunc7 

func WrapFunc7[T1, T2, T3, T4, T5, T6, T7 any](fn any) func(...any) (T1, T2, T3, T4, T5, T6, T7)

func WrapFuncAny 

func WrapFuncAny(fn any) func(...any) []any

Types

type Enumerable 

type Enumerable[T comparable, TS ~[]T] interface {
	Enum(s string) TS
	String(k any) string
	IsValid(t T) bool
}

func NewEnumString 

func NewEnumString[T comparable, TS ~[]T](mapping map[T]string, opts ...OptionExtender) Enumerable[T, TS]

type Error 

type Error string

func (Error) Error 

func (e Error) Error() string

type Heap 

type Heap[E any] struct {
	// contains filtered or unexported fields
}

Heap base on generics to build a heap tree for any type

func NewHeap 

func NewHeap[E any](t []E, cmp func(e1, e2 E) int) *Heap[E]

NewHeap return an initial Heap pointer

func (*Heap[E]) Copy 

func (h *Heap[E]) Copy() *Heap[E]

Copy heap

func (*Heap[E]) Element 

func (h *Heap[E]) Element(index int) (e E, err error)

func (*Heap[E]) Len 

func (h *Heap[E]) Len() int

func (*Heap[E]) Pop 

func (h *Heap[E]) Pop() E

Pop removes and returns the minimum element (according to Less) from the heap. The complexity is O(log n) where n = h.Len(). Pop is equivalent to Remove(h, 0).

func (*Heap[E]) Push 

func (h *Heap[E]) Push(v E)

Push pushes the element x onto the heap. The complexity is O(log n) where n = h.Len().

func (*Heap[E]) Remove 

func (h *Heap[E]) Remove(index int) E

Remove removes and returns the element at index i from the heap. The complexity is O(log n) where n = h.Len().

type InvalidUnmarshalError 

type InvalidUnmarshalError struct {
	Type reflect.Type
}

An InvalidUnmarshalError describes an invalid argument passed to Unmarshal. (The argument to Unmarshal must be a non-nil pointer.)

func (*InvalidUnmarshalError) Error 

func (e *InvalidUnmarshalError) Error() string

type JsonStringify 

type JsonStringify[T any] struct {
	Value T
}

JsonStringify for k8s ConfigMap, Secret

func (*JsonStringify[T]) MarshalJSON 

func (j *JsonStringify[T]) MarshalJSON() (output []byte, err error)

func (*JsonStringify[T]) UnmarshalJSON 

func (j *JsonStringify[T]) UnmarshalJSON(input []byte) (err error)

type OptionExtender 

type OptionExtender interface {
	// contains filtered or unexported methods
}

type OptionFunc 

type OptionFunc[T any] func(*T)

func LoopJitterInterval 

func LoopJitterInterval(base, max time.Duration, ratio, exp float64,
	symmetric bool) OptionFunc[loopWithIntervalOption]

LoopJitterInterval Deprecated, try github.com/rican7/retry.Retry instead

func LoopMaxTimes 

func LoopMaxTimes(maxTimes uint) OptionFunc[loopWithIntervalOption]

LoopMaxTimes Deprecated, try github.com/rican7/retry.Retry instead

func ParseTagName 

func ParseTagName(tag string) OptionFunc[parseTagOption]

func ParseTagOverwrite 

func ParseTagOverwrite(overwrite bool) OptionFunc[parseTagOption]

func ParseTagUnmarshalType 

func ParseTagUnmarshalType(unmarshalTag unmarshalType) OptionFunc[parseTagOption]

func PoolableEvictFunc 

func PoolableEvictFunc[T any](fn func(obj T) bool) OptionFunc[poolableOption[T]]

func SkipGlobs 

func SkipGlobs(patterns ...string) OptionFunc[getCallerOption]

func SkipKnownDepth 

func SkipKnownDepth(minimumCallerDepth int) OptionFunc[getCallerOption]

func SkipRegexps 

func SkipRegexps(patterns ...string) OptionFunc[getCallerOption]

func TimeoutWg 

func TimeoutWg(wg *sync.WaitGroup) OptionFunc[timeoutOption]

type Poolable 

type Poolable[T any] interface {
	Get(initialized any) (T, func())
	Put(obj T)
}

func NewPool 

func NewPool[T any](newFn func() T, opts ...OptionExtender) Poolable[T]

type Set 

type Set[T comparable] struct {
	// contains filtered or unexported fields
}

func NewSet 

func NewSet[T comparable](arr ...T) (s *Set[T])

func (*Set[T]) Clone 

func (s *Set[T]) Clone() (r *Set[T])

func (*Set[T]) Contains 

func (s *Set[T]) Contains(val T) bool

func (*Set[T]) Equals 

func (s *Set[T]) Equals(o *Set[T]) bool

func (*Set[T]) Filter 

func (s *Set[T]) Filter(fn func(T) bool) *Set[T]

func (*Set[T]) Insert 

func (s *Set[T]) Insert(val ...T) *Set[T]

func (*Set[T]) IntersectsWith 

func (s *Set[T]) IntersectsWith(set *Set[T]) bool

func (*Set[T]) IsSubsetOf 

func (s *Set[T]) IsSubsetOf(set *Set[T]) bool

func (*Set[T]) Items 

func (s *Set[T]) Items() []T

func (*Set[T]) Reject 

func (s *Set[T]) Reject(fn func(T) bool) *Set[T]

func (*Set[T]) Remove 

func (s *Set[T]) Remove(val ...T) *Set[T]

func (*Set[T]) Size 

func (s *Set[T]) Size() int

Source Files

View all Source files

Directories

Path Synopsis
Package clone provides functions to deep clone any Go data.
 Package clone provides functions to deep clone any Go data.
creflect
dsl
json
Package sqlparser fork from github.com/longbridgeapp/sqlparser@v0.3.1
 Package sqlparser fork from github.com/longbridgeapp/sqlparser@v0.3.1

Jump to

Keyboard shortcuts

? : This menu
/ : Search site
f or F : Jump to
y or Y : Canonical URL
go.dev uses cookies from Google to deliver and enhance the quality of its services and to analyze traffic. Learn more.