gtsocial-umbx

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registration.go (888B)

      1 package exifundefined
      2 
      3 import (
      4 	"github.com/dsoprea/go-logging"
      5 )
      6 
      7 // UndefinedTagHandle defines one undefined-type tag with a corresponding
      8 // decoder.
      9 type UndefinedTagHandle struct {
     10 	IfdPath string
     11 	TagId   uint16
     12 }
     13 
     14 func registerEncoder(entity EncodeableValue, encoder UndefinedValueEncoder) {
     15 	typeName := entity.EncoderName()
     16 
     17 	_, found := encoders[typeName]
     18 	if found == true {
     19 		log.Panicf("encoder already registered: %v", typeName)
     20 	}
     21 
     22 	encoders[typeName] = encoder
     23 }
     24 
     25 func registerDecoder(ifdPath string, tagId uint16, decoder UndefinedValueDecoder) {
     26 	uth := UndefinedTagHandle{
     27 		IfdPath: ifdPath,
     28 		TagId:   tagId,
     29 	}
     30 
     31 	_, found := decoders[uth]
     32 	if found == true {
     33 		log.Panicf("decoder already registered: %v", uth)
     34 	}
     35 
     36 	decoders[uth] = decoder
     37 }
     38 
     39 var (
     40 	encoders = make(map[string]UndefinedValueEncoder)
     41 	decoders = make(map[UndefinedTagHandle]UndefinedValueDecoder)
     42 )