[swift-evolution] [swift-evolution-announce] [Review] SE-0189: Restrict Cross-module Struct Initializers
drew at sealedabstract.com
Mon Nov 20 12:58:00 CST 2017
I'm "weak oppose" on this proposal.
The core premise here is to increase the encapsulation of a struct around its member variables. But I think the purview of encapsulation is more classes than structs. e.g. a struct leaks information about the mutation of its member variables, even if those variables are private. Structs are the obvious implementation for a named tuple (CGPoint CGAffineTransform UIColor etc.) where there is inherently a fixed set of members that are more conveniently accessed directly. Structs and classes have different purposes and so the argument for consistency with classes is weak.
With regard to the BalancedPair problem, I would prefer to see a "final struct" or "required init".
On November 14, 2017 at 1:31:25 PM, Ted Kremenek (kremenek at apple.com) wrote:
The review of "SE-0189: Restrict Cross-module Struct Initializers" begins now and runs through November 21, 2017.
The proposal is available here:
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Proposal link: https://github.com/apple/swift-evolution/blob/master/proposals/0189-restrict-cross-module-struct-initializers.md
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