reflect

package
v0.17.0 Latest Latest
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 Go to latest Published: Mar 5, 2021 License: BSD-3-Clause Imports: 2 Imported by: 0

Documentation

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func Copy added in v0.14.0 

func Copy(dst, src Value) int

Copy copies the contents of src into dst until either dst has been filled or src has been exhausted.

func DeepEqual added in v0.14.0 

func DeepEqual(x, y interface{}) bool

func Swapper 

func Swapper(slice interface{}) func(i, j int)

Types

type Kind 

type Kind uintptr
const (
	Invalid Kind = iota
	Bool
	Int
	Int8
	Int16
	Int32
	Int64
	Uint
	Uint8
	Uint16
	Uint32
	Uint64
	Uintptr
	Float32
	Float64
	Complex64
	Complex128
	String
	UnsafePointer
	Chan
	Interface
	Ptr
	Slice
	Array
	Func
	Map
	Struct
)

Copied from reflect/type.go https://golang.org/src/reflect/type.go?s=8302:8316#L217

func (Kind) String 

func (k Kind) String() string

type MapIter added in v0.5.0 

type MapIter struct {
}

func (*MapIter) Key added in v0.5.0 

func (it *MapIter) Key() Value

func (*MapIter) Next added in v0.5.0 

func (it *MapIter) Next() bool

func (*MapIter) Value added in v0.5.0 

func (it *MapIter) Value() Value

type SliceHeader 

type SliceHeader struct {
	Data uintptr
	Len  uintptr
	Cap  uintptr
}

type StringHeader 

type StringHeader struct {
	Data uintptr
	Len  uintptr
}

type StructField 

type StructField struct {
	// Name indicates the field name.
	Name string

	// PkgPath is the package path where the struct containing this field is
	// declared for unexported fields, or the empty string for exported fields.
	PkgPath string

	Type      Type
	Tag       StructTag // field tag string
	Anonymous bool
	Offset    uintptr
}

A StructField describes a single field in a struct.

type StructTag added in v0.14.0 

type StructTag string

A StructTag is the tag string in a struct field.

func (StructTag) Get added in v0.14.0 

func (tag StructTag) Get(key string) string

Get returns the value associated with key in the tag string.

func (StructTag) Lookup added in v0.14.0 

func (tag StructTag) Lookup(key string) (value string, ok bool)

Lookup returns the value associated with key in the tag string.

type Type 

type Type uintptr

The typecode as used in an interface{}.

func PtrTo added in v0.17.0 

func PtrTo(t Type) Type

func TypeOf 

func TypeOf(i interface{}) Type

func (Type) Align added in v0.8.0 

func (t Type) Align() int

Align returns the alignment of this type. It is similar to calling unsafe.Alignof.

func (Type) AssignableTo added in v0.8.0 

func (t Type) AssignableTo(u Type) bool

AssignableTo returns whether a value of type u can be assigned to a variable of type t.

func (Type) Bits 

func (t Type) Bits() int

Bits returns the number of bits that this type uses. It is only valid for arithmetic types (integers, floats, and complex numbers). For other types, it will panic.

func (Type) Comparable added in v0.8.0 

func (t Type) Comparable() bool

Comparable returns whether values of this type can be compared to each other.

func (Type) ConvertibleTo added in v0.14.0 

func (t Type) ConvertibleTo(u Type) bool

func (Type) Elem 

func (t Type) Elem() Type

Elem returns the element type for channel, slice and array types, the pointed-to value for pointer types, and the key type for map types.

func (Type) Field 

func (t Type) Field(i int) StructField

Field returns the type of the i'th field of this struct type. It panics if t is not a struct type.

func (Type) FieldAlign added in v0.8.0 

func (t Type) FieldAlign() int

FieldAlign returns the alignment if this type is used in a struct field. It is currently an alias for Align() but this might change in the future.

func (Type) Implements added in v0.9.0 

func (t Type) Implements(u Type) bool

func (Type) Key added in v0.14.0 

func (t Type) Key() Type

func (Type) Kind 

func (t Type) Kind() Kind

func (Type) Len 

func (t Type) Len() int

Len returns the number of elements in this array. It panics of the type kind is not Array.

func (Type) Name added in v0.14.0 

func (t Type) Name() string

func (Type) NumField 

func (t Type) NumField() int

NumField returns the number of fields of a struct type. It panics for other type kinds.

func (Type) NumMethod added in v0.14.0 

func (t Type) NumMethod() int

func (Type) Size 

func (t Type) Size() uintptr

Size returns the size in bytes of a given type. It is similar to unsafe.Sizeof.

func (Type) String 

func (t Type) String() string

type TypeError added in v0.8.0 

type TypeError struct {
	Method string
}

TypeError is the error that is used in a panic when invoking a method on a type that is not applicable to that type.

func (*TypeError) Error added in v0.8.0 

func (e *TypeError) Error() string

type Value 

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

func Append added in v0.14.0 

func Append(s Value, x ...Value) Value

Append appends the values x to a slice s and returns the resulting slice. As in Go, each x's value must be assignable to the slice's element type.

func Indirect 

func Indirect(v Value) Value

func MakeMap added in v0.14.0 

func MakeMap(typ Type) Value

MakeMap creates a new map with the specified type.

func MakeSlice 

func MakeSlice(typ Type, len, cap int) Value

func New added in v0.7.0 

func New(typ Type) Value

func ValueOf 

func ValueOf(i interface{}) Value

func Zero added in v0.7.0 

func Zero(typ Type) Value

func (Value) Addr 

func (v Value) Addr() Value

func (Value) Bool 

func (v Value) Bool() bool

func (Value) Bytes 

func (v Value) Bytes() []byte

func (Value) CanAddr 

func (v Value) CanAddr() bool

func (Value) CanInterface 

func (v Value) CanInterface() bool

func (Value) CanSet 

func (v Value) CanSet() bool

func (Value) Cap 

func (v Value) Cap() int

Cap returns the capacity of this value for arrays, channels and slices. For other types, it panics.

func (Value) Complex 

func (v Value) Complex() complex128

func (Value) Convert added in v0.14.0 

func (v Value) Convert(t Type) Value

func (Value) Elem 

func (v Value) Elem() Value

func (Value) Field 

func (v Value) Field(i int) Value

Field returns the value of the i'th field of this struct.

func (Value) FieldByIndex added in v0.14.0 

func (v Value) FieldByIndex(index []int) Value

FieldByIndex returns the nested field corresponding to index.

func (Value) FieldByName added in v0.14.0 

func (v Value) FieldByName(name string) Value

func (Value) Float 

func (v Value) Float() float64

func (Value) Index 

func (v Value) Index(i int) Value

func (Value) Int 

func (v Value) Int() int64

func (Value) Interface 

func (v Value) Interface() interface{}

func (Value) IsNil 

func (v Value) IsNil() bool

IsNil returns whether the value is the nil value. It panics if the value Kind is not a channel, map, pointer, function, slice, or interface.

func (Value) IsValid 

func (v Value) IsValid() bool

func (Value) Kind 

func (v Value) Kind() Kind

func (Value) Len 

func (v Value) Len() int

Len returns the length of this value for slices, strings, arrays, channels, and maps. For other types, it panics.

func (Value) MapIndex 

func (v Value) MapIndex(key Value) Value

func (Value) MapKeys 

func (v Value) MapKeys() []Value

func (Value) MapRange added in v0.5.0 

func (v Value) MapRange() *MapIter

func (Value) NumField 

func (v Value) NumField() int

NumField returns the number of fields of this struct. It panics for other value types.

func (Value) OverflowInt added in v0.14.0 

func (v Value) OverflowInt(x int64) bool

func (Value) OverflowUint added in v0.14.0 

func (v Value) OverflowUint(x uint64) bool

func (Value) Pointer 

func (v Value) Pointer() uintptr

Pointer returns the underlying pointer of the given value for the following types: chan, map, pointer, unsafe.Pointer, slice, func.

func (Value) Set 

func (v Value) Set(x Value)

func (Value) SetBool 

func (v Value) SetBool(x bool)

func (Value) SetComplex 

func (v Value) SetComplex(x complex128)

func (Value) SetFloat 

func (v Value) SetFloat(x float64)

func (Value) SetInt 

func (v Value) SetInt(x int64)

func (Value) SetMapIndex added in v0.14.0 

func (v Value) SetMapIndex(key, elem Value)

func (Value) SetString 

func (v Value) SetString(x string)

func (Value) SetUint 

func (v Value) SetUint(x uint64)

func (Value) Slice 

func (v Value) Slice(i, j int) Value

func (Value) String 

func (v Value) String() string

func (Value) Type 

func (v Value) Type() Type

func (Value) Uint 

func (v Value) Uint() uint64

type ValueError 

type ValueError struct {
	Method string
}

func (*ValueError) Error 

func (e *ValueError) Error() string

Source Files

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