go-clickhouse/ch/reflect.go

package ch

import (
	"reflect"
)

func indirect(v reflect.Value) reflect.Value {
	switch v.Kind() {
	case reflect.Interface:
		return indirect(v.Elem())
	case reflect.Ptr:
		return v.Elem()
	default:
		return v
	}
}

func indirectType(t reflect.Type) reflect.Type {
	if t.Kind() == reflect.Ptr {
		t = t.Elem()
	}
	return t
}

func sliceElemType(v reflect.Value) reflect.Type {
	elemType := v.Type().Elem()
	if elemType.Kind() == reflect.Interface && v.Len() > 0 {
		return indirect(v.Index(0).Elem()).Type()
	}
	return indirectType(elemType)
}