💯Go Struct and Field validation, including Cross Field, Cross Struct, Map, Slice and Array diving
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validator/util.go

82 lines
1.4 KiB

package validator
import (
"reflect"
"strconv"
)
const (
namespaceSeparator = "."
leftBracket = "["
rightBracket = "]"
)
func (v *Validate) extractType(current reflect.Value) (reflect.Value, reflect.Kind) {
switch current.Kind() {
case reflect.Ptr:
if current.IsNil() {
return current, reflect.Ptr
}
return v.extractType(current.Elem())
case reflect.Interface:
if current.IsNil() {
return current, reflect.Interface
}
return v.extractType(current.Elem())
case reflect.Invalid:
return current, reflect.Invalid
default:
if v.config.hasCustomFuncs {
if fn, ok := v.config.CustomTypeFuncs[current.Type()]; ok {
return v.extractType(reflect.ValueOf(fn(current)))
}
}
return current, current.Kind()
}
}
// asInt retuns the parameter as a int64
// or panics if it can't convert
func asInt(param string) int64 {
i, err := strconv.ParseInt(param, 0, 64)
panicIf(err)
return i
}
// asUint returns the parameter as a uint64
// or panics if it can't convert
func asUint(param string) uint64 {
i, err := strconv.ParseUint(param, 0, 64)
panicIf(err)
return i
}
// asFloat returns the parameter as a float64
// or panics if it can't convert
func asFloat(param string) float64 {
i, err := strconv.ParseFloat(param, 64)
panicIf(err)
return i
}
func panicIf(err error) {
if err != nil {
panic(err.Error())
}
}