Wrap method vs chain method

up vote
0
down vote

favorite

Imagine we have the following:

sealed trait Foo

case class FullFoo[A](foo: A) extends Foo

case object EmptyFoo extends Foo

and

def liftToFoo[A](opt: Option[A]): Foo = 

  opt.map(a => FullFoo(a)).getOrElse(EmptyFoo)

We can easily do:

liftToFoo(Some(123)) // FullFoo(123)

liftToFoo(None)      // EmptyFoo

But I'm curious if there's some "chainable" way to call this (rather than wrapping the method like above):

Some(123).someFunction(liftToFoo)  // FullFoo(123)

asked Nov 11 at 0:34

user451151

23119

I'm trying to avoid using an implicit class to achieve this style. Curious if there's something I can use already.
– user451151
Nov 11 at 0:41

add a comment |

up vote
0
down vote

favorite

Imagine we have the following:

sealed trait Foo

case class FullFoo[A](foo: A) extends Foo

case object EmptyFoo extends Foo

and

def liftToFoo[A](opt: Option[A]): Foo = 

  opt.map(a => FullFoo(a)).getOrElse(EmptyFoo)

We can easily do:

liftToFoo(Some(123)) // FullFoo(123)

liftToFoo(None)      // EmptyFoo

But I'm curious if there's some "chainable" way to call this (rather than wrapping the method like above):

Some(123).someFunction(liftToFoo)  // FullFoo(123)

asked Nov 11 at 0:34

user451151

23119

I'm trying to avoid using an implicit class to achieve this style. Curious if there's something I can use already.
– user451151
Nov 11 at 0:41

add a comment |

up vote
0
down vote

favorite

Imagine we have the following:

sealed trait Foo

case class FullFoo[A](foo: A) extends Foo

case object EmptyFoo extends Foo

and

def liftToFoo[A](opt: Option[A]): Foo = 

  opt.map(a => FullFoo(a)).getOrElse(EmptyFoo)

We can easily do:

liftToFoo(Some(123)) // FullFoo(123)

liftToFoo(None)      // EmptyFoo

But I'm curious if there's some "chainable" way to call this (rather than wrapping the method like above):

Some(123).someFunction(liftToFoo)  // FullFoo(123)

asked Nov 11 at 0:34

user451151

23119

Imagine we have the following:

sealed trait Foo

case class FullFoo[A](foo: A) extends Foo

case object EmptyFoo extends Foo

and

def liftToFoo[A](opt: Option[A]): Foo = 

  opt.map(a => FullFoo(a)).getOrElse(EmptyFoo)

We can easily do:

liftToFoo(Some(123)) // FullFoo(123)

liftToFoo(None)      // EmptyFoo

But I'm curious if there's some "chainable" way to call this (rather than wrapping the method like above):

Some(123).someFunction(liftToFoo)  // FullFoo(123)

scala

asked Nov 11 at 0:34

user451151

23119

asked Nov 11 at 0:34

user451151

23119

asked Nov 11 at 0:34

user451151

23119

asked Nov 11 at 0:34

user451151

23119

asked Nov 11 at 0:34

user451151

23119

I'm trying to avoid using an implicit class to achieve this style. Curious if there's something I can use already.
– user451151
Nov 11 at 0:41

add a comment |

I'm trying to avoid using an implicit class to achieve this style. Curious if there's something I can use already.
– user451151
Nov 11 at 0:41

I'm trying to avoid using an implicit class to achieve this style. Curious if there's something I can use already.
– user451151
Nov 11 at 0:41

add a comment |

1 Answer
1

active

oldest

votes

up vote
2
down vote

Not exactly what you're looking for but perhaps a little closer than what you've got.

Some(123).fold(EmptyFoo:Foo)(FullFoo(_))

answered Nov 11 at 1:33

jwvh

24.8k52038

A) Yeah, but you said you were "trying to avoid an implicit class". B) Success()? Failure()? That's a Try, not a Foo.
– jwvh
Nov 11 at 1:42

Re: implicits, yeah totally! Lol I hacked together this "Foo" example, but was really thinking of applying it with a Try :P You caught me in some Frankenstein copy/paste :)
– user451151
Nov 11 at 1:51

Thanks again for your feedback and help!
– user451151
Nov 11 at 1:53

add a comment |

Your Answer

StackExchange.ifUsing("editor", function () {
StackExchange.using("externalEditor", function () {
StackExchange.using("snippets", function () {
StackExchange.snippets.init();
});
});
}, "code-snippets");

StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);

StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});

function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});

}
});

draft saved

draft discarded

Sign up or log in

StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});

Post as a guest

Name

Required, but never shown

StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53244784%2fwrap-method-vs-chain-method%23new-answer', 'question_page');
}
);

Post as a guest

Name

Required, but never shown

1 Answer
1

active

oldest

votes

1 Answer
1

active

oldest

votes

up vote
2
down vote

Not exactly what you're looking for but perhaps a little closer than what you've got.

Some(123).fold(EmptyFoo:Foo)(FullFoo(_))

answered Nov 11 at 1:33

jwvh

24.8k52038

A) Yeah, but you said you were "trying to avoid an implicit class". B) Success()? Failure()? That's a Try, not a Foo.
– jwvh
Nov 11 at 1:42

Re: implicits, yeah totally! Lol I hacked together this "Foo" example, but was really thinking of applying it with a Try :P You caught me in some Frankenstein copy/paste :)
– user451151
Nov 11 at 1:51

Thanks again for your feedback and help!
– user451151
Nov 11 at 1:53

add a comment |

up vote
2
down vote

Not exactly what you're looking for but perhaps a little closer than what you've got.

Some(123).fold(EmptyFoo:Foo)(FullFoo(_))

answered Nov 11 at 1:33

jwvh

24.8k52038

A) Yeah, but you said you were "trying to avoid an implicit class". B) Success()? Failure()? That's a Try, not a Foo.
– jwvh
Nov 11 at 1:42

Re: implicits, yeah totally! Lol I hacked together this "Foo" example, but was really thinking of applying it with a Try :P You caught me in some Frankenstein copy/paste :)
– user451151
Nov 11 at 1:51

Thanks again for your feedback and help!
– user451151
Nov 11 at 1:53

add a comment |

up vote
2
down vote

Not exactly what you're looking for but perhaps a little closer than what you've got.

Some(123).fold(EmptyFoo:Foo)(FullFoo(_))

answered Nov 11 at 1:33

jwvh

24.8k52038

Not exactly what you're looking for but perhaps a little closer than what you've got.

Some(123).fold(EmptyFoo:Foo)(FullFoo(_))

answered Nov 11 at 1:33

jwvh

24.8k52038

answered Nov 11 at 1:33

jwvh

24.8k52038

answered Nov 11 at 1:33

jwvh

24.8k52038

answered Nov 11 at 1:33

jwvh

24.8k52038

A) Yeah, but you said you were "trying to avoid an implicit class". B) Success()? Failure()? That's a Try, not a Foo.
– jwvh
Nov 11 at 1:42

Re: implicits, yeah totally! Lol I hacked together this "Foo" example, but was really thinking of applying it with a Try :P You caught me in some Frankenstein copy/paste :)
– user451151
Nov 11 at 1:51

Thanks again for your feedback and help!
– user451151
Nov 11 at 1:53

add a comment |

A) Yeah, but you said you were "trying to avoid an implicit class". B) Success()? Failure()? That's a Try, not a Foo.
– jwvh
Nov 11 at 1:42

Re: implicits, yeah totally! Lol I hacked together this "Foo" example, but was really thinking of applying it with a Try :P You caught me in some Frankenstein copy/paste :)
– user451151
Nov 11 at 1:51

Thanks again for your feedback and help!
– user451151
Nov 11 at 1:53

A) Yeah, but you said you were "trying to avoid an implicit class". B) Success()? Failure()? That's a Try, not a Foo.
– jwvh
Nov 11 at 1:42

Re: implicits, yeah totally! Lol I hacked together this "Foo" example, but was really thinking of applying it with a Try :P You caught me in some Frankenstein copy/paste :)
– user451151
Nov 11 at 1:51

Thanks again for your feedback and help!
– user451151
Nov 11 at 1:53

add a comment |

draft saved

draft discarded

Thanks for contributing an answer to Stack Overflow!

Please be sure to answer the question. Provide details and share your research!

But avoid …

Asking for help, clarification, or responding to other answers.

Making statements based on opinion; back them up with references or personal experience.

To learn more, see our tips on writing great answers.

Some of your past answers have not been well-received, and you're in danger of being blocked from answering.

Please pay close attention to the following guidance:

Please be sure to answer the question. Provide details and share your research!

But avoid …

Asking for help, clarification, or responding to other answers.

Making statements based on opinion; back them up with references or personal experience.

To learn more, see our tips on writing great answers.

draft saved

draft discarded

Sign up or log in

StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});

Post as a guest

Name

Required, but never shown

Post as a guest

Name

Required, but never shown

Sign up or log in

StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});

Post as a guest

Name

Required, but never shown

Sign up or log in

StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});

Post as a guest

Name

Required, but never shown

Sign up or log in

StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});

Post as a guest

Name

Required, but never shown

Name

Required, but never shown

Name

Required, but never shown

This page is only for reference, If you need detailed information, please check here

搜尋此網誌

Ndtyjky