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[SR-12407] Calling .toggle on a wrapped boolean no longer calls didSet #54845

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drewcrawford opened this issue Mar 25, 2020 · 0 comments
Closed

[SR-12407] Calling .toggle on a wrapped boolean no longer calls didSet #54845

drewcrawford opened this issue Mar 25, 2020 · 0 comments
Labels
bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. compiler The Swift compiler in itself property wrappers Feature: property wrappers type checker Area → compiler: Semantic analysis

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@drewcrawford
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Previous ID SR-12407
Radar None
Original Reporter @drewcrawford
Type Bug
Status Resolved
Resolution Duplicate
Additional Detail from JIRA
Votes 0
Component/s Compiler
Labels Bug, PropertyWrappers, TypeChecker
Assignee None
Priority Medium

md5: 9eba98ce07c54c0c602d9fc610fe2618

duplicates:

  • SR-12089 Swift 5.2 snapshot: didSet not called

Issue Description:

This is a regression in Swift 5.2.

@propertyWrapper
struct B<Type> {
    var wrappedValue: Type
}

struct S {
    @B
    var b: Bool = false {
        didSet {
            print("here")
        }
    }
}

var s = S()
s.b.toggle()

Expected: prints "here"
Actual: no print

Xcode Version 11.4 (11E146)
@swift-ci swift-ci transferred this issue from apple/swift-issues Apr 25, 2022
This issue was closed.
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Labels
bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. compiler The Swift compiler in itself property wrappers Feature: property wrappers type checker Area → compiler: Semantic analysis
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@drewcrawford