Set and Dictionary should have `remove(where:)`.

[dabrahams]

Motivation

It's not possible to implement this operation efficiently from outside the library. You either iterate a snapshot and end up silently copying the collection, or you have to collect the items to be removed in a separate collection and then .subtract that.

Proposed solution

Add remove(where:) to Set and Dictionary.

Alternatives considered

No response

Additional information

No response

[natecook1000]

Agreed, with the name removeAll(where:) to match the RangeReplaceableCollection requirement.

[krishpranav]

Hi, is this still open?

[krishpranav]

@ maintainers if possible can you assign it to me so that i will raise an PR for this.

[AnthonyLatsis]

@krishpranav Please note that this addition requires a Swift evolution proposal — hence the corresponding label.

[krishpranav]

so should i need to create a new proposal like that?

[AnthonyLatsis]

You are welcome to! Make sure to follow the process document that is linked there.

[krishpranav]

pitch: (swiftlang/swift-evolution#2647)