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[SR-15265] callAsFunction only works with methods, and not closures #57587

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davedelong opened this issue Sep 30, 2021 · 1 comment
Open

[SR-15265] callAsFunction only works with methods, and not closures #57587

davedelong opened this issue Sep 30, 2021 · 1 comment
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bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. compiler The Swift compiler in itself type checker Area → compiler: Semantic analysis

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@davedelong
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Previous ID SR-15265
Radar rdar://problem/83741546
Original Reporter @davedelong
Type Bug
Additional Detail from JIRA
Votes 0
Component/s Compiler
Labels Bug, TypeChecker
Assignee None
Priority Medium

md5: 40b0a063f8cd60ce1bf23223e06f45e9

Issue Description:

Given that things like string interpolation and result builders are syntactic transformations, I would've expected this to work:

struct Call1 {
    func callAsFunction() { print("hello, 1") }
}

struct Call2 {
    var callAsFunction: () -> Void
}

let c1 = Call1()
c1()
// should be rewritten to be c1.callAsFunction()

let c2 = Call2(callAsFunction: { print("hello, 2") })
c2() // error: Cannot call value of non-function type 'Call2'
// should be rewritten to be c2.callAsFunction()
@beccadax
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@swift-ci create

@swift-ci swift-ci transferred this issue from apple/swift-issues Apr 25, 2022
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Labels
bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. compiler The Swift compiler in itself type checker Area → compiler: Semantic analysis
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@davedelong @beccadax