[swift-evolution] [Pitch] Add an all algorithm to Sequence

[Adam Bridge]

Perhaps

 

allMembersMatch()

 

or

 

everyMemberMatches()

 

This reads well in use.

 

On 2017-04-02, 6:18 PM, "Ricardo Parada via swift-evolution" <swift-evolution-bounces at swift.org on behalf of swift-evolution at swift.org> wrote:

 

    or perhaps containsOnly()

    or maybe allMatch()

    or membersMatch()

    

    :-)

    

    Sent from my iPhone

    

    > On Apr 2, 2017, at 1:57 AM, Rien via swift-evolution <swift-evolution at swift.org> wrote:

    > 

    > 

    >> On 02 Apr 2017, at 07:51, Karl Wagner via swift-evolution <swift-evolution at swift.org> wrote:

    >> 

    >> Given the relationship to contains, why not keep it simple and go with:

    >> 

    >> onlyContains(_ element:)

    >> onlyContains(_ matching:)

    >> 

    >> [9, 9, 9, 9, 9].onlyContains(9) // true

    >> [1, 2, 3, 2, 3].onlyContains { $0 < 3 } // false

    >> 

    >> - Karl

    > 

    > IMO, we have a winner!

    > 

    > Rien.

    > 

    >> 

    >>> On 1 Apr 2017, at 10:47, Xiaodi Wu via swift-evolution <swift-evolution at swift.org> wrote:

    >>> 

    >>> On Sat, Apr 1, 2017 at 3:40 AM, David Hart via swift-evolution <swift-evolution at swift.org> wrote:

    >>> 

    >>>> On 1 Apr 2017, at 09:50, Brandon Trussell <brandon2k3 at gmail.com> wrote:

    >>>> 

    >>>> I agree that based on the method name, I thought a collection would be returned.  

    >>> 

    >>> Now that I think more about it, I think you're right. It is confusing. Perhaps:

    >>> 

    >>> allAre(equalTo: )

    >>> allAre(matching: )

    >>> 

    >>> Well, if we're going to go full stdlib naming guidelines, shouldn't they be--

    >>> 

    >>> ```

    >>> areAll(equalTo:)

    >>> areAll(matching:)

    >>> ```

    >>> 

    >>>> On Sat, Apr 1, 2017 at 12:36 AM, David Hart via swift-evolution <swift-evolution at swift.org> wrote:

    >>>> 

    >>>> 

    >>>>> On 1 Apr 2017, at 06:02, Will Stanton via swift-evolution <swift-evolution at swift.org> wrote:

    >>>>> 

    >>>>> +1 to adding, but the name `all` suggests (to me) the return of another sequence, not a Bool.

    >>>> 

    >>>> I'm not too concerned because the mandatory labels makes it clear.

    >>>> 

    >>>>> Perhaps the function name should be question-like?

    >>>>> 

    >>>>> Suggesting: `membersSatisfy(condition:)` or `allSatisfy(condition:)` or maybe even just `satisfies(condition:)`

    >>>>> The question-like modifier/verb is necessary to suggest a Bool and IMO not a needless word.

    >>>>> 

    >>>>> Regards,

    >>>>> Will Stanton

    >>>>> 

    >>>>>> On Mar 31, 2017, at 11:28, Ben Cohen via swift-evolution <swift-evolution at swift.org> wrote:

    >>>>>> 

    >>>>>> Hopefully non-controversial, aside from the naming of the method and arguments, about which controversy abounds

    >>>>> 

    >>>>> _______________________________________________

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    >>>> 

    >>>> 

    >>>> -- 

    >>>> Brandon

    >>> 

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    >>> 

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