reflection

package module
v0.0.0-...-299589b Latest Latest
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 Go to latest Published: Apr 6, 2023 License: Apache-2.0 Imports: 7 Imported by: 5

README

reflection

Documentation

Index

Constants

View Source 
const (
	ObjectUnknown = iota
	ObjectSimpletype
	ObjectStruct
	ObjectSlice
	ObjectMap

	ObjectCustom = 50000
)

Variables

View Source 
var (
	EMPTY_STRING       string
	BOOL_DEFAULT       bool
	BYTE_DEFAULT       byte
	COMPLEX64_DEFAULT  complex64
	COMPLEX128_DEFAULT complex128
	FLOAT32_DEFAULT    float32
	FLOAT64_DEFAULT    float64
	INT64_DEFAULT      int64
	UINT64_DEFAULT     uint64
	INT32_DEFAULT      int32
	UINT32_DEFAULT     uint32
	INT16_DEFAULT      int16
	UINT16_DEFAULT     uint16
	INT8_DEFAULT       int8
	UINT8_DEFAULT      uint8
	INT_DEFAULT        int
	UINT_DEFAULT       uint
	TIME_DEFAULT       time.Time
)
View Source 
var (
	IntType   = reflect.TypeOf(INT_DEFAULT)
	Int8Type  = reflect.TypeOf(INT8_DEFAULT)
	Int16Type = reflect.TypeOf(INT16_DEFAULT)
	Int32Type = reflect.TypeOf(INT32_DEFAULT)
	Int64Type = reflect.TypeOf(INT64_DEFAULT)

	UintType   = reflect.TypeOf(UINT_DEFAULT)
	Uint8Type  = reflect.TypeOf(UINT8_DEFAULT)
	Uint16Type = reflect.TypeOf(UINT16_DEFAULT)
	Uint32Type = reflect.TypeOf(UINT32_DEFAULT)
	Uint64Type = reflect.TypeOf(UINT64_DEFAULT)

	Float32Type = reflect.TypeOf(FLOAT32_DEFAULT)
	Float64Type = reflect.TypeOf(FLOAT64_DEFAULT)

	Complex64Type  = reflect.TypeOf(COMPLEX64_DEFAULT)
	Complex128Type = reflect.TypeOf(COMPLEX128_DEFAULT)

	StringType = reflect.TypeOf(EMPTY_STRING)
	BoolType   = reflect.TypeOf(BOOL_DEFAULT)
	ByteType   = reflect.TypeOf(BYTE_DEFAULT)
	BytesType  = reflect.SliceOf(ByteType)

	TimeType = reflect.TypeOf(TIME_DEFAULT)
)
View Source 
var (
	IntKind   = IntType.Kind()
	Int8Kind  = Int8Type.Kind()
	Int16Kind = Int16Type.Kind()
	Int32Kind = Int32Type.Kind()
	Int64Kind = Int64Type.Kind()

	UintKind   = UintType.Kind()
	Uint8Kind  = Uint8Type.Kind()
	Uint16Kind = Uint16Type.Kind()
	Uint32Kind = Uint32Type.Kind()
	Uint64Kind = Uint64Type.Kind()

	Float32Kind = Float32Type.Kind()
	Float64Kind = Float64Type.Kind()

	Complex64Kind  = Complex64Type.Kind()
	Complex128Kind = Complex128Type.Kind()

	StringKind = StringType.Kind()
	BoolKind   = BoolType.Kind()
	ByteKind   = ByteType.Kind()
	BytesKind  = BytesType.Kind()

	TimeKind = TimeType.Kind()
)
View Source 
var SqlType2GoType = map[string]reflect.Type{
	"int":                IntType,
	"integer":            IntType,
	"tinyint":            IntType,
	"smallint":           IntType,
	"mediumint":          IntType,
	"bigint":             Int64Type,
	"int unsigned":       UintType,
	"integer unsigned":   UintType,
	"tinyint unsigned":   UintType,
	"smallint unsigned":  UintType,
	"mediumint unsigned": UintType,
	"bigint unsigned":    Uint64Type,
	"bit":                Int8Type,
	"bool":               BoolType,
	"enum":               StringType,
	"set":                StringType,
	"varchar":            StringType,
	"char":               StringType,
	"tinytext":           StringType,
	"mediumtext":         StringType,
	"text":               StringType,
	"longtext":           StringType,
	"blob":               StringType,
	"tinyblob":           StringType,
	"mediumblob":         StringType,
	"longblob":           StringType,
	"date":               TimeType,
	"datetime":           TimeType,
	"timestamp":          TimeType,
	"time":               TimeType,
	"float":              Float64Type,
	"double":             Float64Type,
	"decimal":            Float64Type,
	"binary":             StringType,
	"varbinary":          StringType,
}
View Source 
var (
	StructAliasTag = "alias"
)

Functions

func CanSet 

func CanSet(i interface{}) bool

func CheckValueNilSafe 

func CheckValueNilSafe(vi reflect.Value) bool

func CopyMap 

func CopyMap(dest, src reflect.Value) (int, error)

func CopyMapInterface 

func CopyMapInterface(dest, src interface{}) (int, error)

func CopySlice 

func CopySlice(dest, src reflect.Value) (int, error)

func CopySliceInterface 

func CopySliceInterface(dest, src interface{}) (int, error)

func GetBeanClassName 

func GetBeanClassName(model interface{}) string

func GetTypeClassName 

func GetTypeClassName(rt reflect.Type) string

func IsNil 

func IsNil(i interface{}) bool

func IsSimpleType 

func IsSimpleType(t reflect.Type) bool

IsSimpleType 是否是数据库使用的简单类型，注意不能是PTR

func MustPtr 

func MustPtr(bean interface{}) error

func MustPtrValue 

func MustPtrValue(beanValue reflect.Value) error

func New 

func New(t reflect.Type) interface{}

func NewValue 

func NewValue(t reflect.Type) reflect.Value

func SetFieldValue 

func SetFieldValue(dst reflect.Value, fieldName string, value reflect.Value) error

func SetFieldValueByTag 

func SetFieldValueByTag(dst reflect.Value, tags string, value reflect.Value, tagName string) error

func SetFieldValueEx 

func SetFieldValueEx(v reflect.Value, fieldName string, value reflect.Value, tagName string, modifier func(string) string) error

func SetModelNameType 

func SetModelNameType(mtype reflect.Type)

func SetOrCopyMap 

func SetOrCopyMap(dest, src reflect.Value, set bool) (int, error)

func SetOrCopySlice 

func SetOrCopySlice(dest, src reflect.Value, set bool) (int, error)

func SetStrcutFieldValue 

func SetStrcutFieldValue(o interface{}, fieldStr string, value interface{}) error

func SetStrcutFieldValueByTag 

func SetStrcutFieldValueByTag(o interface{}, matchStr string, value interface{}, tagName string) error

func SetStrcutFieldValueEx 

func SetStrcutFieldValueEx(o interface{}, fieldName string, value interface{}, tagName string, modifier func(string) string) error

func SetValue 

func SetValue(dst reflect.Value, value reflect.Value) bool

func SetValueInterface 

func SetValueInterface(dst interface{}, v interface{}) error

Types

type MapInfo 

type MapInfo struct {
	//包含pkg的名称
	ClassName string
	//元素类型
	ElemType reflect.Type

	Settable
	Newable
}

func (*MapInfo) AddValue 

func (mapInfo *MapInfo) AddValue(v reflect.Value) bool

func (*MapInfo) CanAddValue 

func (mapInfo *MapInfo) CanAddValue() bool

func (*MapInfo) CanSet 

func (mapInfo *MapInfo) CanSet(v reflect.Value) bool

func (*MapInfo) CanSetField 

func (mapInfo *MapInfo) CanSetField() bool

func (*MapInfo) GetClassName 

func (mapInfo *MapInfo) GetClassName() string

func (*MapInfo) Kind 

func (mapInfo *MapInfo) Kind() int

func (*MapInfo) New 

func (mapInfo *MapInfo) New() Object

func (*MapInfo) NewElem 

func (mapInfo *MapInfo) NewElem() Object

NewElem FIXME: return nil，需要对map元素解析

func (*MapInfo) SetField 

func (mapInfo *MapInfo) SetField(name string, vv reflect.Value) bool

func (*MapInfo) SetValue 

func (mapInfo *MapInfo) SetValue(v reflect.Value) bool

SetValue TODO: 目前仅支持map[string]interface{}，需增加其他类型支持

type Newable 

type Newable struct {
	Type reflect.Type
}

func (*Newable) NewValue 

func (newable *Newable) NewValue() reflect.Value

type Object 

type Object interface {
	Kind() int
	// New 生成克隆空对象
	New() Object
	// NewElem 获得对象的元素
	NewElem() Object
	// SetField 设置字段
	SetField(name string, v reflect.Value) bool
	// AddValue 添加元素值
	AddValue(v reflect.Value) bool
	// GetClassName 获得对象名称
	GetClassName() string
	// CanSetField 是否能设置field
	CanSetField() bool
	// CanAddValue 是否能添加值
	CanAddValue() bool

	// NewValue 获得值
	NewValue() reflect.Value

	// CanSet 是否能够设置
	CanSet(v reflect.Value) bool
	// SetValue 设置值
	SetValue(v reflect.Value) bool
	// GetValue 获得值
	GetValue() reflect.Value
	// ResetValue 变换value对象
	ResetValue(v reflect.Value)
}

func GetObjectInfo 

func GetObjectInfo(model interface{}) (Object, error)

func GetReflectMapInfo 

func GetReflectMapInfo(rt reflect.Type, rv reflect.Value) (Object, error)

func GetReflectObjectInfo 

func GetReflectObjectInfo(rt reflect.Type, rv reflect.Value) (Object, error)

func GetReflectSimpleTypeInfo 

func GetReflectSimpleTypeInfo(rt reflect.Type, rv reflect.Value) (Object, error)

func GetReflectSliceInfo 

func GetReflectSliceInfo(rt reflect.Type, rv reflect.Value) (Object, error)

type Settable 

type Settable struct {
	//值
	Value reflect.Value
}

func (*Settable) CanSet 

func (settable *Settable) CanSet(v reflect.Value) bool

func (*Settable) GetValue 

func (settable *Settable) GetValue() reflect.Value

func (*Settable) ResetValue 

func (settable *Settable) ResetValue(v reflect.Value)

func (*Settable) SetValue 

func (settable *Settable) SetValue(v reflect.Value) bool

type SimpleTypeInfo 

type SimpleTypeInfo struct {
	//包含pkg的名称
	ClassName string

	Settable
	Newable
}

func (*SimpleTypeInfo) AddValue 

func (simpleTypeInfo *SimpleTypeInfo) AddValue(v reflect.Value) bool

func (*SimpleTypeInfo) CanAddValue 

func (simpleTypeInfo *SimpleTypeInfo) CanAddValue() bool

func (*SimpleTypeInfo) CanSet 

func (simpleTypeInfo *SimpleTypeInfo) CanSet(v reflect.Value) bool

CanSet 直接返回true，需要通过SetValue判断

func (*SimpleTypeInfo) CanSetField 

func (simpleTypeInfo *SimpleTypeInfo) CanSetField() bool

func (*SimpleTypeInfo) GetClassName 

func (simpleTypeInfo *SimpleTypeInfo) GetClassName() string

func (*SimpleTypeInfo) Kind 

func (simpleTypeInfo *SimpleTypeInfo) Kind() int

func (*SimpleTypeInfo) New 

func (simpleTypeInfo *SimpleTypeInfo) New() Object

func (*SimpleTypeInfo) NewElem 

func (simpleTypeInfo *SimpleTypeInfo) NewElem() Object

func (*SimpleTypeInfo) SetField 

func (simpleTypeInfo *SimpleTypeInfo) SetField(name string, vv reflect.Value) bool

func (*SimpleTypeInfo) SetValue 

func (simpleTypeInfo *SimpleTypeInfo) SetValue(v reflect.Value) bool

type SliceInfo 

type SliceInfo struct {
	//包含pkg的名称
	ClassName string
	Elem      Object

	Settable
	Newable
}

func (*SliceInfo) AddValue 

func (sliceInfo *SliceInfo) AddValue(v reflect.Value) bool

func (*SliceInfo) CanAddValue 

func (sliceInfo *SliceInfo) CanAddValue() bool

func (*SliceInfo) CanSetField 

func (sliceInfo *SliceInfo) CanSetField() bool

func (*SliceInfo) GetClassName 

func (sliceInfo *SliceInfo) GetClassName() string

func (*SliceInfo) Kind 

func (sliceInfo *SliceInfo) Kind() int

func (*SliceInfo) New 

func (sliceInfo *SliceInfo) New() Object

func (*SliceInfo) NewElem 

func (sliceInfo *SliceInfo) NewElem() Object

func (*SliceInfo) SetField 

func (sliceInfo *SliceInfo) SetField(name string, v reflect.Value) bool

type StructInfo 

type StructInfo struct {
	//包含pkg的名称
	ClassName string
	//Model名称（目前用于xml解析是struct的前缀：#{x.username} 中的x）
	Name string
	//表字段和实体字段映射关系
	FieldNameMap map[string]string

	Settable

	Newable
}

func GetReflectStructInfo 

func GetReflectStructInfo(rt reflect.Type, rv reflect.Value, aliasTag ...string) (*StructInfo, error)

func GetStructInfo 

func GetStructInfo(bean interface{}) (*StructInfo, error)

GetStructInfo 解析结构体，使用： 1、如果结构体中含有gobatis.ModelName类型的字段，则： a)、如果含有tag，则使用tag作为tablename； b)、如果不含有tag，则使用fieldName作为tablename。 2、如果结构体中不含有gobatis.ModelName类型的字段，则使用结构体名称作为tablename 3、如果结构体中含有column的tag，则： a）、如果tag为‘-’，则不进行columne与field的映射； b）、如果tag不为‘-’使用tag name作为column名称与field映射。 4、如果结构体中不含有column的tag，则使用field name作为column名称与field映射 5、如果字段的tag为‘-’，则不进行columne与field的映射；

func (*StructInfo) AddValue 

func (structInfo *StructInfo) AddValue(v reflect.Value) bool

func (*StructInfo) CanAddValue 

func (structInfo *StructInfo) CanAddValue() bool

func (*StructInfo) CanSetField 

func (structInfo *StructInfo) CanSetField() bool

func (*StructInfo) FillMapValue 

func (structInfo *StructInfo) FillMapValue(paramMap *map[string]interface{})

func (*StructInfo) GetClassName 

func (structInfo *StructInfo) GetClassName() string

func (*StructInfo) Kind 

func (structInfo *StructInfo) Kind() int

func (*StructInfo) MapValue 

func (structInfo *StructInfo) MapValue() map[string]interface{}

func (*StructInfo) New 

func (structInfo *StructInfo) New() Object

func (*StructInfo) NewElem 

func (structInfo *StructInfo) NewElem() Object

func (*StructInfo) SetField 

func (structInfo *StructInfo) SetField(name string, vv reflect.Value) bool

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