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equal.go
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equal.go
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package reflect
import (
"reflect"
)
const EQUALMETHOD = "Equal"
func Equal(v1, v2 interface{}) bool {
return EqualValue(reflect.ValueOf(v1), reflect.ValueOf(v2))
}
func EqualValue(v1, v2 reflect.Value) bool {
if v1.Kind() != v2.Kind() {
return false
}
switch v1.Kind() {
case reflect.Bool:
return v1.Bool() == v2.Bool()
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
return v1.Int() == v2.Int()
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
return v1.Uint() == v2.Uint()
case reflect.Float32, reflect.Float64:
return v1.Float() == v2.Float()
case reflect.Complex64, reflect.Complex128:
return v1.Complex() == v2.Complex()
case reflect.Array, reflect.Slice: //集合类型,首先进行程度和集合类型检测,一致进行后续判断
if v1.Len() != v2.Len() || v1.Type().Elem() != v2.Type().Elem() {
return false
}
if checkEqualFunc(v1, v2) {
return true
}
for i := 0; i < v1.Len(); i++ {
if !EqualValue(v1.Index(i), v2.Index(i)) {
return false
}
}
return true
case reflect.Chan:
panic(Err_Equal_UnsupportType)
case reflect.Func:
return v1.Type() == v2.Type()
case reflect.Interface:
v := v2.Convert(v1.Type())
if v.IsNil() {
return false
}
return true
case reflect.Map:
if v1.Len() != v2.Len() || v1.Type().Key() != v2.Type().Key() || v1.Type().Elem() != v2.Type().Elem() {
return false
}
if checkEqualFunc(v1, v2) {
return true
}
keys := v1.MapKeys()
for _, key := range keys {
v1item := v1.MapIndex(key)
v2item := v2.MapIndex(key)
if !v2item.IsValid() {
return false
}
if !EqualValue(v1item, v2item) {
return false
}
}
return true
case reflect.Ptr:
if v1.Pointer() == v2.Pointer() {
return true
} else if v1.Elem().Type() == v2.Elem().Type() {
if checkEqualFunc(v1, v2) {
return true
} else {
return EqualValue(v1.Elem(), v2.Elem())
}
}
case reflect.String:
return v1.String() == v2.String()
case reflect.Struct:
if v1.Type() != v2.Type() {
return false
}
if checkEqualFunc(v1, v2) {
return true
}
numfile := v1.NumField()
for i := 0; i < numfile; i++ {
if !EqualValue(v1.Field(i), v2.Field(i)) {
return false
}
}
return true
case reflect.UnsafePointer:
panic(Err_Equal_UnsupportType)
}
return false
}
func checkEqualFunc(v1, v2 reflect.Value) (outputresult bool) {
defer func() {
if err := recover(); err != nil {
outputresult = false
}
}()
if f, has := v1.Type().MethodByName(EQUALMETHOD); has {
inlen := f.Type.NumIn()
outlen := f.Type.NumOut()
if inlen != 2 || outlen != 1 {
return false
}
if f.Type.In(1) != v1.Type() || f.Type.Out(0).Kind() != reflect.Bool {
return false
}
result := f.Func.Call([]reflect.Value{v1, v2})
return result[0].Bool()
} else {
return false
}
}
func EqualValueMust(v1, v2 reflect.Value) bool {
defer func() {}()
return EqualValue(v1, v2)
}
func EqualMust(v1, v2 interface{}) bool {
defer func() {}()
return Equal(v1, v2)
}