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mirror of https://github.com/v2fly/v2ray-core.git synced 2024-12-14 06:06:39 -05:00
v2fly/common/type.go
2021-09-04 22:55:12 +01:00

32 lines
1.1 KiB
Go

package common
import (
"context"
"reflect"
)
// ConfigCreator is a function to create an object by a config.
type ConfigCreator func(ctx context.Context, config interface{}) (interface{}, error)
var typeCreatorRegistry = make(map[reflect.Type]ConfigCreator)
// RegisterConfig registers a global config creator. The config can be nil but must have a type.
func RegisterConfig(config interface{}, configCreator ConfigCreator) error {
configType := reflect.TypeOf(config)
if _, found := typeCreatorRegistry[configType]; found {
return newError(configType.Name() + " is already registered").AtError()
}
typeCreatorRegistry[configType] = configCreator
return nil
}
// CreateObject creates an object by its config. The config type must be registered through RegisterConfig().
func CreateObject(ctx context.Context, config interface{}) (interface{}, error) {
configType := reflect.TypeOf(config)
creator, found := typeCreatorRegistry[configType]
if !found {
return nil, newError(configType.String() + " is not registered").AtError()
}
return creator(ctx, config)
}