Proposal: Add Encoder and Decoder

[johnynek]

Something like:

trait Encoder[T, U] {
  def apply(t: T): U
  // and andThen, toFn, 
}

trait Decoder[U, T] {
  def apply(u: U): Try[T]
}

// composition might be clearer than inheritance here.
trait Injection[T, U] {
  def encoder: Encoder[T, U]
  def decoder: Decoder[U, T]
}

trait Bijection[T, U] {
  def encoder: Encoder[T, U]
  def inverseEncoder: Encoder[U, T]
}

[ianoc]

+1

On Monday, January 27, 2014, P. Oscar Boykin notifications@github.com
wrote:

Something like:

trait Encoder[T, U] {
def apply(t: T): U
// and andThen, toFn, }
trait Decoder[U, T] {
def apply(u: U): Try[T]}
// composition might be clearer than inheritance here.trait Injection[T, U] {
def encoder: Encoder[T, U]
def decoder: Decoder[U, T]}
trait Bijection[T, U] {
def encoder: Encoder[T, U]
def inverseEncoder: Encoder[U, T]}

—
Reply to this email directly or view it on GitHubhttps://github.com//issues/158
.

[sritchie]

It all comes back again :)

ianoc mailto:notifications@github.com
January 27, 2014 2:08 PM
+1

On Monday, January 27, 2014, P. Oscar Boykin notifications@github.com
wrote:

Something like:

trait Encoder[T, U] {
def apply(t: T): U
// and andThen, toFn, }
trait Decoder[U, T] {
def apply(u: U): Try[T]}
// composition might be clearer than inheritance here.trait
Injection[T, U] {
def encoder: Encoder[T, U]
def decoder: Decoder[U, T]}
trait Bijection[T, U] {
def encoder: Encoder[T, U]
def inverseEncoder: Encoder[U, T]}

—
Reply to this email directly or view it on
GitHubhttps://github.com//issues/158
.

—
Reply to this email directly or view it on GitHub
#158 (comment).

P. Oscar Boykin mailto:notifications@github.com
January 27, 2014 11:25 AM

Something like:

trait Encoder[T, U] {
def apply(t: T): U
// and andThen, toFn,
}

trait Decoder[U, T] {
def apply(u: U): Try[T]
}

// composition might be clearer than inheritance here.
trait Injection[T, U] {
def encoder: Encoder[T, U]
def decoder: Decoder[U, T]
}

trait Bijection[T, U] {
def encoder: Encoder[T, U]
def inverseEncoder: Encoder[U, T]
}

—
Reply to this email directly or view it on GitHub
#158.

Sam Ritchie (@sritchie)
Paddleguru Co-Founder
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[johnynek]

@sritchie yep…. twitter.bijection looks like an worse and worse package name. :)

[sritchie]

Tony boy had it right all along!!

[sritchie]

@softprops liked Kodiak

[softprops]

Thanks @sritchie .I mentioned "Codiak" on the twttrs: think Kodiak the bear but with a C for codec ( for transformations to and fro ). I had a similar idea for a library like bijection a few years back with Codiak as name because I realized there were so many interfaces for client libraries that could be implemented in terms of something like what you guys did actually did a good job of flushing out :) Free free to take this name. I never did anything with that repo as you can probably tell. It may go against twttrs bird rule for names though :). Anyway, feel free to take this name if it make sense.