nulltype/nullarrayfloat.go at master · ringover/nulltype · GitHub

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package nulltype

import (
"database/sql/driver"
"strings"
"unsafe"

	jsoniter "github.com/json-iterator/go"
)

/* SQL and JSon null.ArrayFloat */

typeArrayFloat[Tfloat32|float64] struct {
Array []T
Validbool
}

funcNewArrayFloat[Tfloat32|float64](i []T) ArrayFloat[T] {
n:=ArrayFloat[T]{}
n.Valid=true
n.Array=i
returnn
}

func (ni*ArrayFloat[T]) Encode(ptr unsafe.Pointer, stream*jsoniter.Stream) {
val:= (*ArrayFloat[T])(ptr)

ifval.Valid {
stream.WriteVal(val.Array)
	} else {
stream.WriteVal(nil)
	}
}

// IsEmpty detect whether primitive.ObjectID is empty.
func (ni*ArrayFloat[T]) IsEmpty(ptr unsafe.Pointer) bool {
val:= (*ArrayFloat[T])(ptr)
return!val.Valid
}

func (ni*ArrayFloat[T]) UnmarshalCSV(bstring) error {
vari []T
iferr:=json.Unmarshal([]byte(b), &i); err!=nil {
returnerr
	}
ifstrings.Compare(b, "null") ==0 {
ni.Valid=false
returnnil
	}
ni.Array=i
ni.Valid=true
returnnil
}

// MarshalCSV marshals CSV
func (niArrayFloat[T]) MarshalCSV() (string, error) {
ifni.Valid {
b, err:=json.Marshal(ni.Array)
returnstring(b), err
	}
return"", nil
}

func (ni*ArrayFloat[T]) UnmarshalJSON(b []byte) error {
vari []T
iferr:=json.Unmarshal([]byte(b), &i); err!=nil {
returnerr
	}
ifstrings.Compare(string(b), "null") ==0 {
ni.Valid=false
returnnil
	}
ni.Array=i
ni.Valid=true

returnnil
}

func (niArrayFloat[T]) MarshalJSON() ([]byte, error) {
ifni.Valid {
returnjson.Marshal(ni.Array)
	}
returnjson.Marshal(nil)
}

func (ni*ArrayFloat[T]) Scan(valueany) error {
ifvalue==nil {
ni.Array, ni.Valid=make([]T, 0), false
returnnil
	}
ni.Valid=true
returnconvertAssignRows(&ni.Array, value)
}

func (niArrayFloat[T]) Value() (driver.Value, error) {
if!ni.Valid {
returnnil, nil
	}
returnni.Array, nil
}