apiReflect

package
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 Go to latest Published: Sep 11, 2022 License: GPL-2.0 Imports: 12 Imported by: 0

Documentation

Overview

Package apiReflect - Snaffooed from https://github.com/fatih/structs

Package apiReflect - Snaffooed from https://github.com/fatih/structs Package apiReflect contains various utilities functions to work with structs.

Package apiReflect - Snaffooed from https://github.com/fatih/structs

Index

Constants

This section is empty.

Variables

View Source 
var (
	// DefaultTagName is the default tag name for struct fields which provides
	// a more granular to tweak certain structs. Lookup the necessary functions
	// for more info.
	DefaultTagName = "structs" // struct's field default tag name
)

Functions

func AsArray 

func AsArray(ref interface{}) []interface{}

func DoPkgTypesMatch 

func DoPkgTypesMatch(a interface{}, b interface{}) error

func DoTypesMatch 

func DoTypesMatch(a interface{}, b interface{}) error

func FillMap 

func FillMap(s interface{}, out map[string]interface{})

FillMap is the same as Map. Instead of returning the output, it fills the given map.

func FindInStruct 

func FindInStruct(ref interface{}, name string) interface{}

FindInStruct Search a given structure for the State object and return its pointer.

func FindRequestData 

func FindRequestData(ref interface{}) string

func GetArea 

func GetArea(trim string, v interface{}) string

GetArea Return an Area name if we are given an Area or EndPoint struct.

func GetCallerPackage 

func GetCallerPackage(skip int) string

func GetCmdName2 

func GetCmdName2(ref interface{}) string

func GetFingerprint 

func GetFingerprint(ref interface{}) string

func GetName 

func GetName(trim string, v interface{}) string

GetName Return an endpoint name if we are given an Area or EndPoint struct.

func GetNameOld 

func GetNameOld(ref interface{}) (string, string)

func GetPackageName 

func GetPackageName(ref interface{}) string

func GetPkgType 

func GetPkgType(v interface{}) string

func GetRequestString 

func GetRequestString(ref interface{}) string

func GetStructName 

func GetStructName(v interface{}) (string, string)

func GetStructName2 

func GetStructName2(ref interface{}) string

func GetType 

func GetType(v interface{}) string

func HasZero 

func HasZero(s interface{}) bool

HasZero returns true if any field is equal to a zero value. For more info refer to Struct types HasZero() method. It panics if s's kind is not struct.

func HeaderAsArray 

func HeaderAsArray(i interface{}) []interface{}

func HelpOptions 

func HelpOptions(ref interface{}) string

func IsStruct 

func IsStruct(s interface{}) bool

IsStruct returns true if the given variable is a struct or a pointer to struct.

func IsZero 

func IsZero(s interface{}) bool

IsZero returns true if all fields is equal to a zero value. For more info refer to Struct types IsZero() method. It panics if s's kind is not struct.

func Map 

func Map(s interface{}) map[string]interface{}

Map converts the given struct to a map[string]interface{}. For more info refer to Struct types Map() method. It panics if s's kind is not struct.

func Name 

func Name(s interface{}) string

Name returns the structs's type name within its package. It returns an empty string for unnamed types. It panics if s's kind is not struct.

func Names 

func Names(s interface{}) []string

Names returns a slice of field names. For more info refer to Struct types Names() method. It panics if s's kind is not struct.

func PackageName 

func PackageName(trim string, v interface{}) string

func PrintAsJson 

func PrintAsJson(ref interface{}) (string, error)

func PrintHeader 

func PrintHeader(i interface{}) string

func PrintValue 

func PrintValue(i interface{}) string

func Query 

func Query(i interface{}) string

func ReflectAsJson 

func ReflectAsJson(ref interface{}) string

func Values 

func Values(s interface{}) []interface{}

Values converts the given struct to a []interface{}. For more info refer to Struct types Values() method. It panics if s's kind is not struct.

func VerifyOptionsRequired 

func VerifyOptionsRequired(ref interface{}) error

VerifyOptionsRequired Verify fields within the structure that are required.

Types

type DataStructure 

type DataStructure struct {
	Json        string
	PointId     string
	PointType   string
	PointUnit   string
	PointDevice string
	PointName   string
}

type DataStructureMap 

type DataStructureMap map[string]DataStructure

func GetTagPointType 

func GetTagPointType(ref interface{}) DataStructureMap

type Field 

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

Field represents a single struct field that encapsulates high level functions around the field.

func Fields 

func Fields(s interface{}) []*Field

Fields returns a slice of *Field. For more info refer to Struct types Fields() method. It panics if s's kind is not struct.

func (*Field) Field 

func (f *Field) Field(name string) *Field

Field returns the field from a nested struct. It panics if the nested struct is not exported or if the field was not found.

func (*Field) FieldOk 

func (f *Field) FieldOk(name string) (*Field, bool)

FieldOk returns the field from a nested struct. The boolean returns whether the field was found (true) or not (false).

func (*Field) Fields 

func (f *Field) Fields() []*Field

Fields returns a slice of Fields. This is particular handy to get the fields of a nested struct . A struct tag with the content of "-" ignores the checking of that particular field. Example: 

// Field is ignored by this package.
Field *http.Request `structs:"-"`

It panics if field is not exported or if field's kind is not struct

func (*Field) IsEmbedded 

func (f *Field) IsEmbedded() bool

IsEmbedded returns true if the given field is an anonymous field (embedded)

func (*Field) IsExported 

func (f *Field) IsExported() bool

IsExported returns true if the given field is exported.

func (*Field) IsZero 

func (f *Field) IsZero() bool

IsZero returns true if the given field is not initialized (has a zero value). It panics if the field is not exported.

func (*Field) Kind 

func (f *Field) Kind() reflect.Kind

Kind returns the fields kind, such as "string", "map", "bool", etc ..

func (*Field) Name 

func (f *Field) Name() string

Name returns the name of the given field

func (*Field) Set 

func (f *Field) Set(val interface{}) error

Set sets the field to given value v. It returns an error if the field is not settable (not addressable or not exported) or if the given value's type doesn't match the fields type.

func (*Field) Tag 

func (f *Field) Tag(key string) string

Tag returns the value associated with key in the tag string. If there is no such key in the tag, Tag returns the empty string.

func (*Field) Value 

func (f *Field) Value() interface{}

Value returns the underlying value of the field. It panics if the field is not exported.

func (*Field) Zero 

func (f *Field) Zero() error

Zero sets the field to its zero value. It returns an error if the field is not settable (not addressable or not exported).

type Required 

type Required []string

func GetOptionsRequired 

func GetOptionsRequired(ref interface{}) Required

func (*Required) IsNotRequired 

func (r *Required) IsNotRequired(field string) bool

func (*Required) IsRequired 

func (r *Required) IsRequired(field string) bool

type Struct 

type Struct struct {
	TagName string
	// contains filtered or unexported fields
}

Struct encapsulates a struct type to provide several high level functions around the struct.

func New 

func New(s interface{}) *Struct

New returns a new *Struct with the struct s. It panics if the s's kind is not struct.

func (*Struct) Field 

func (s *Struct) Field(name string) *Field

Field returns a new Field struct that provides several high level functions around a single struct field entity. It panics if the field is not found.

func (*Struct) FieldOk 

func (s *Struct) FieldOk(name string) (*Field, bool)

FieldOk returns a new Field struct that provides several high level functions around a single struct field entity. The boolean returns true if the field was found.

func (*Struct) Fields 

func (s *Struct) Fields() []*Field

Fields returns a slice of Fields. A struct tag with the content of "-" ignores the checking of that particular field. Example: 

// Field is ignored by this package.
Field bool `structs:"-"`

It panics if s's kind is not struct.

func (*Struct) FillMap 

func (s *Struct) FillMap(out map[string]interface{})

FillMap is the same as Map. Instead of returning the output, it fills the given map.

func (*Struct) HasZero 

func (s *Struct) HasZero() bool

HasZero returns true if a field in a struct is not initialized (zero value). A struct tag with the content of "-" ignores the checking of that particular field. Example: 

// Field is ignored by this package.
Field bool `structs:"-"`

A value with the option of "omitnested" stops iterating further if the type is a struct. Example: 

// Field is not processed further by this package.
Field time.Time     `structs:"myName,omitnested"`
Field *http.Request `structs:",omitnested"`

Note that only exported fields of a struct can be accessed, non exported fields will be neglected. It panics if s's kind is not struct.

func (*Struct) IsZero 

func (s *Struct) IsZero() bool

IsZero returns true if all fields in a struct is a zero value (not initialized) A struct tag with the content of "-" ignores the checking of that particular field. Example: 

// Field is ignored by this package.
Field bool `structs:"-"`

A value with the option of "omitnested" stops iterating further if the type is a struct. Example: 

// Field is not processed further by this package.
Field time.Time     `structs:"myName,omitnested"`
Field *http.Request `structs:",omitnested"`

Note that only exported fields of a struct can be accessed, non exported fields will be neglected. It panics if s's kind is not struct.

func (*Struct) Map 

func (s *Struct) Map() map[string]interface{}

Map converts the given struct to a map[string]interface{}, where the keys of the map are the field names and the values of the map the associated values of the fields. The default key string is the struct field name but can be changed in the struct field's tag value. The "structs" key in the struct's field tag value is the key name. Example: 

// Field appears in map as key "myName".
Name string `structs:"myName"`

A tag value with the content of "-" ignores that particular field. Example: 

// Field is ignored by this package.
Field bool `structs:"-"`

A tag value with the content of "string" uses the stringer to get the value. Example: 

// The value will be output of Animal's String() func.
// Map will panic if Animal does not implement String().
Field *Animal `structs:"field,string"`

A tag value with the option of "flatten" used in a struct field is to flatten its fields in the output map. Example: 

// The FieldStruct's fields will be flattened into the output map.
FieldStruct time.Time `structs:",flatten"`

A tag value with the option of "omitnested" stops iterating further if the type is a struct. Example: 

// Field is not processed further by this package.
Field time.Time     `structs:"myName,omitnested"`
Field *http.Request `structs:",omitnested"`

A tag value with the option of "omitempty" ignores that particular field if the field value is empty. Example: 

// Field appears in map as key "myName", but the field is
// skipped if empty.
Field string `structs:"myName,omitempty"`

// Field appears in map as key "Field" (the default), but
// the field is skipped if empty.
Field string `structs:",omitempty"`

Note that only exported fields of a struct can be accessed, non exported fields will be neglected.

func (*Struct) Name 

func (s *Struct) Name() string

Name returns the structs's type name within its package. For more info refer to Name() function.

func (*Struct) Names 

func (s *Struct) Names() []string

Names returns a slice of field names. A struct tag with the content of "-" ignores the checking of that particular field. Example: 

// Field is ignored by this package.
Field bool `structs:"-"`

It panics if s's kind is not struct.

func (*Struct) Values 

func (s *Struct) Values() []interface{}

Values converts the given s struct's field values to a []interface{}. A struct tag with the content of "-" ignores the that particular field. Example: 

// Field is ignored by this package.
Field int `structs:"-"`

A value with the option of "omitnested" stops iterating further if the type is a struct. Example: 

// Fields is not processed further by this package.
Field time.Time     `structs:",omitnested"`
Field *http.Request `structs:",omitnested"`

A tag value with the option of "omitempty" ignores that particular field and is not added to the values if the field value is empty. Example: 

// Field is skipped if empty
Field string `structs:",omitempty"`

Note that only exported fields of a struct can be accessed, non exported fields will be neglected.

type StructKey 

type StructKey struct {
	Name      string
	JsonName  string
	JsonValue string
	Required  string
	Value     string
	Type      reflect.Type
	Interface interface{}
}

type StructKeys 

type StructKeys map[string]StructKey

func GetStructKeys 

func GetStructKeys(ref interface{}, keys ...string) StructKeys

Source Files

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