gotosocial/vendor/github.com/uptrace/bun/schema/reflect.go
kim (grufwub) bdcc090851 update bun library -> v1.0.4
Signed-off-by: kim (grufwub) <grufwub@gmail.com>
2021-09-08 20:05:26 +01:00

71 lines
1.3 KiB
Go

package schema
import (
"database/sql/driver"
"encoding/json"
"net"
"reflect"
"time"
)
var (
bytesType = reflect.TypeOf((*[]byte)(nil)).Elem()
timeType = reflect.TypeOf((*time.Time)(nil)).Elem()
ipType = reflect.TypeOf((*net.IP)(nil)).Elem()
ipNetType = reflect.TypeOf((*net.IPNet)(nil)).Elem()
jsonRawMessageType = reflect.TypeOf((*json.RawMessage)(nil)).Elem()
driverValuerType = reflect.TypeOf((*driver.Valuer)(nil)).Elem()
queryAppenderType = reflect.TypeOf((*QueryAppender)(nil)).Elem()
)
func indirectType(t reflect.Type) reflect.Type {
if t.Kind() == reflect.Ptr {
t = t.Elem()
}
return t
}
func fieldByIndex(v reflect.Value, index []int) (_ reflect.Value, ok bool) {
if len(index) == 1 {
return v.Field(index[0]), true
}
for i, idx := range index {
if i > 0 {
if v.Kind() == reflect.Ptr {
if v.IsNil() {
return v, false
}
v = v.Elem()
}
}
v = v.Field(idx)
}
return v, true
}
func fieldByIndexAlloc(v reflect.Value, index []int) reflect.Value {
if len(index) == 1 {
return v.Field(index[0])
}
for i, idx := range index {
if i > 0 {
v = indirectNil(v)
}
v = v.Field(idx)
}
return v
}
func indirectNil(v reflect.Value) reflect.Value {
if v.Kind() == reflect.Ptr {
if v.IsNil() {
v.Set(reflect.New(v.Type().Elem()))
}
v = v.Elem()
}
return v
}