gvar

package
v1.13.4 Latest Latest
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 Go to latest Published: Aug 26, 2020 License: MIT Imports: 7 Imported by: 64

Documentation

Overview

Package gvar provides an universal variable type, like generics.

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

This section is empty.

Types

type Var 

type Var struct {
	// contains filtered or unexported fields
}

Var is an universal variable type implementer.

func Create added in v1.9.7 

func Create(value interface{}, safe ...bool) Var

Create creates and returns a new Var with given <value>. The optional parameter <safe> specifies whether Var is used in concurrent-safety, which is false in default.

func New 

func New(value interface{}, safe ...bool) *Var

New creates and returns a new Var with given <value>. The optional parameter <safe> specifies whether Var is used in concurrent-safety, which is false in default.

func (*Var) Array 

func (v *Var) Array() []interface{}

Array is alias of Interfaces.

func (*Var) Bool 

func (v *Var) Bool() bool

Bool converts and returns <v> as bool.

func (*Var) Bytes 

func (v *Var) Bytes() []byte

Bytes converts and returns <v> as []byte.

func (*Var) Clone added in v1.12.0 

func (v *Var) Clone() *Var

Clone does a shallow copy of current Var and returns a pointer to this Var.

func (*Var) Duration 

func (v *Var) Duration() time.Duration

Duration converts and returns <v> as time.Duration. If value of <v> is string, then it uses time.ParseDuration for conversion.

func (*Var) Float32 

func (v *Var) Float32() float32

Float32 converts and returns <v> as float32.

func (*Var) Float64 

func (v *Var) Float64() float64

Float64 converts and returns <v> as float64.

func (*Var) Floats 

func (v *Var) Floats() []float64

Floats converts and returns <v> as []float64.

func (*Var) GTime 

func (v *Var) GTime(format ...string) *gtime.Time

GTime converts and returns <v> as *gtime.Time. The parameter <format> specifies the format of the time string using gtime, eg: Y-m-d H:i:s.

func (*Var) Int 

func (v *Var) Int() int

Int converts and returns <v> as int.

func (*Var) Int16 

func (v *Var) Int16() int16

Int16 converts and returns <v> as int16.

func (*Var) Int32 

func (v *Var) Int32() int32

Int32 converts and returns <v> as int32.

func (*Var) Int64 

func (v *Var) Int64() int64

Int64 converts and returns <v> as int64.

func (*Var) Int8 

func (v *Var) Int8() int8

Int8 converts and returns <v> as int8.

func (*Var) Interface 

func (v *Var) Interface() interface{}

Interface is alias of Val.

func (*Var) Interfaces 

func (v *Var) Interfaces() []interface{}

Interfaces converts and returns <v> as []interfaces{}.

func (*Var) Ints 

func (v *Var) Ints() []int

Ints converts and returns <v> as []int.

func (*Var) IsEmpty 

func (v *Var) IsEmpty() bool

IsEmpty checks whether <v> is empty.

func (*Var) IsNil 

func (v *Var) IsNil() bool

IsNil checks whether <v> is nil.

func (*Var) ListItemValues added in v1.13.2 

func (v *Var) ListItemValues(key interface{}) (values []interface{})

ListItemValues retrieves and returns the elements of all item struct/map with key <key>. Note that the parameter <list> should be type of slice which contains elements of map or struct, or else it returns an empty slice.

func (*Var) ListItemValuesUnique added in v1.13.2 

func (v *Var) ListItemValuesUnique(key string) []interface{}

ListItemValuesUnique retrieves and returns the unique elements of all struct/map with key <key>. Note that the parameter <list> should be type of slice which contains elements of map or struct, or else it returns an empty slice.

func (*Var) Map 

func (v *Var) Map(tags ...string) map[string]interface{}

Map converts and returns <v> as map[string]interface{}.

func (*Var) MapDeep 

func (v *Var) MapDeep(tags ...string) map[string]interface{}

MapDeep converts and returns <v> as map[string]interface{} recursively.

func (*Var) MapStrAny added in v1.13.2 

func (v *Var) MapStrAny() map[string]interface{}

MapStrAny is like function Map, but implements the interface of MapStrAny.

func (*Var) MapStrStr added in v1.9.3 

func (v *Var) MapStrStr(tags ...string) map[string]string

MapStrStr converts and returns <v> as map[string]string.

func (*Var) MapStrStrDeep added in v1.9.3 

func (v *Var) MapStrStrDeep(tags ...string) map[string]string

MapDeep converts and returns <v> as map[string]string recursively.

func (*Var) MapStrVar added in v1.9.3 

func (v *Var) MapStrVar(tags ...string) map[string]*Var

MapStrVar converts and returns <v> as map[string]Var.

func (*Var) MapStrVarDeep added in v1.9.3 

func (v *Var) MapStrVarDeep(tags ...string) map[string]*Var

MapStrVarDeep converts and returns <v> as map[string]*Var recursively.

func (*Var) MapToMap added in v1.9.3 

func (v *Var) MapToMap(pointer interface{}, mapping ...map[string]string) (err error)

MapToMap converts any map type variable <params> to another map type variable <pointer>. See gconv.MapToMap.

func (*Var) MapToMapDeep added in v1.9.3 

func (v *Var) MapToMapDeep(pointer interface{}, mapping ...map[string]string) (err error)

MapToMapDeep converts any map type variable <params> to another map type variable <pointer> recursively. See gconv.MapToMapDeep.

func (*Var) MapToMaps added in v1.9.3 

func (v *Var) MapToMaps(pointer interface{}, mapping ...map[string]string) (err error)

MapToMaps converts any map type variable <params> to another map type variable <pointer>. See gconv.MapToMaps.

func (*Var) MapToMapsDeep added in v1.9.3 

func (v *Var) MapToMapsDeep(pointer interface{}, mapping ...map[string]string) (err error)

MapToMapsDeep converts any map type variable <params> to another map type variable <pointer> recursively. See gconv.MapToMapsDeep.

func (*Var) Maps added in v1.12.3 

func (v *Var) Maps(tags ...string) []map[string]interface{}

Maps converts and returns <v> as map[string]string. See gconv.Maps.

func (*Var) MarshalJSON 

func (v *Var) MarshalJSON() ([]byte, error)

MarshalJSON implements the interface MarshalJSON for json.Marshal.

func (*Var) Scan added in v1.13.2 

func (v *Var) Scan(pointer interface{}, mapping ...map[string]string) error

Scan automatically calls Struct or Structs function according to the type of parameter <pointer> to implement the converting. It calls function Struct if <pointer> is type of *struct/**struct to do the converting. It calls function Structs if <pointer> is type of *[]struct/*[]*struct to do the converting.

func (*Var) ScanDeep added in v1.13.2 

func (v *Var) ScanDeep(pointer interface{}, mapping ...map[string]string) error

ScanDeep automatically calls StructDeep or StructsDeep function according to the type of parameter <pointer> to implement the converting. It calls function StructDeep if <pointer> is type of *struct/**struct to do the converting. It calls function StructsDeep if <pointer> is type of *[]struct/*[]*struct to do the converting.

func (*Var) Set 

func (v *Var) Set(value interface{}) (old interface{})

Set sets <value> to <v>, and returns the old value.

func (*Var) Slice 

func (v *Var) Slice() []interface{}

Slice is alias of Interfaces.

func (*Var) String 

func (v *Var) String() string

String converts and returns <v> as string.

func (*Var) Strings 

func (v *Var) Strings() []string

Strings converts and returns <v> as []string.

func (*Var) Struct 

func (v *Var) Struct(pointer interface{}, mapping ...map[string]string) error

Struct maps value of <v> to <pointer>. The parameter <pointer> should be a pointer to a struct instance. The parameter <mapping> is used to specify the key-to-attribute mapping rules.

func (*Var) StructDeep 

func (v *Var) StructDeep(pointer interface{}, mapping ...map[string]string) error

Struct maps value of <v> to <pointer> recursively. The parameter <pointer> should be a pointer to a struct instance. The parameter <mapping> is used to specify the key-to-attribute mapping rules.

func (*Var) Structs 

func (v *Var) Structs(pointer interface{}, mapping ...map[string]string) error

Structs converts and returns <v> as given struct slice.

func (*Var) StructsDeep 

func (v *Var) StructsDeep(pointer interface{}, mapping ...map[string]string) error

StructsDeep converts and returns <v> as given struct slice recursively.

func (*Var) Time 

func (v *Var) Time(format ...string) time.Time

Time converts and returns <v> as time.Time. The parameter <format> specifies the format of the time string using gtime, eg: Y-m-d H:i:s.

func (*Var) Uint 

func (v *Var) Uint() uint

Uint converts and returns <v> as uint.

func (*Var) Uint16 

func (v *Var) Uint16() uint16

Uint16 converts and returns <v> as uint16.

func (*Var) Uint32 

func (v *Var) Uint32() uint32

Uint32 converts and returns <v> as uint32.

func (*Var) Uint64 

func (v *Var) Uint64() uint64

Uint64 converts and returns <v> as uint64.

func (*Var) Uint8 

func (v *Var) Uint8() uint8

Uint8 converts and returns <v> as uint8.

func (*Var) Uints added in v1.9.7 

func (v *Var) Uints() []uint

Uints converts and returns <v> as []uint.

func (*Var) UnmarshalJSON added in v1.9.7 

func (v *Var) UnmarshalJSON(b []byte) error

UnmarshalJSON implements the interface UnmarshalJSON for json.Unmarshal.

func (*Var) UnmarshalValue added in v1.11.5 

func (v *Var) UnmarshalValue(value interface{}) error

UnmarshalValue is an interface implement which sets any type of value for Var.

func (*Var) Val 

func (v *Var) Val() interface{}

Val returns the current value of <v>.

func (*Var) Vars 

func (v *Var) Vars() []*Var

Vars converts and returns <v> as []Var.

Source Files

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