/
array.go
50 lines (41 loc) · 869 Bytes
/
array.go
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package types
import (
"fmt"
"reflect"
)
type Array struct {
v reflect.Value
append AppenderFunc
scan ScannerFunc
}
var _ ValueAppender = (*Array)(nil)
var _ ValueScanner = (*Array)(nil)
func NewArray(vi interface{}) *Array {
v := reflect.ValueOf(vi)
if !v.IsValid() {
panic(fmt.Errorf("pg: Array(nil)"))
}
return &Array{
v: v,
append: ArrayAppender(v.Type()),
scan: ArrayScanner(v.Type()),
}
}
func (a *Array) AppendValue(b []byte, quote int) []byte {
if a.append == nil {
panic(fmt.Errorf("pg: Array(unsupported %s)", a.v.Type()))
}
return a.append(b, a.v, quote)
}
func (a *Array) ScanValue(rd Reader, n int) error {
if a.scan == nil {
return fmt.Errorf("pg: Array(unsupported %s)", a.v.Type())
}
return a.scan(a.v, rd, n)
}
func (a *Array) Value() interface{} {
if a.v.IsValid() {
return a.v.Interface()
}
return nil
}