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  1. Swift
  2. SR-4559

Method called 'self' can be confused with regular 'self'

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    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Medium
    • Resolution: Done
    • Component/s: Compiler
    • Labels:
      None
    • Environment:

      macOS 10.12.4, Xcode 8.3.1

      Description

      This compiles because instance method `self` is accessible as a static member: `self`(_ self: TypeWithSelfMethod) -> () -> Void

      func funcThatReturnsSomething(_ any: Any) -> Any {
    any
}

struct TypeWithSelfMethod {
    
    let property = self
    
    let propertyFromClosure: () = {
        print(self)
    }()
    
    let propertyFromFunc = funcThatReturnsSomething(self)
    
    func `self`() {
        
    }
}

      This is particularly problematic as NSObject has a method with this name, so code to add target is compiling and doesn't refer to the self the user likely expects

      import UIKit

class A: NSObject {

  private let control: UIControl = {
    let control = UIControl()
    control.addTarget(self, action: #selector(valueChanged), for: .valueChanged)
    return control
  }()


  @objc private func valueChanged() {

  }
}

        Attachments

          Issue Links

          is duplicated by

          Bug - A problem which impairs or prevents the functions of the product. SR-4865 target self should be illegal in property constructor

          • Medium - Has the potential to affect progress.
          • Resolved

          Bug - A problem which impairs or prevents the functions of the product. SR-6895 Timer property with initializer and `self` target causes crash at runtime

          • Medium - Has the potential to affect progress.
          • Resolved

          Bug - A problem which impairs or prevents the functions of the product. SR-7198 Using self in computed let

          • Medium - Has the potential to affect progress.
          • Resolved

          Bug - A problem which impairs or prevents the functions of the product. SR-7368 Bugs of self-referencing Default Property Values in subclasses

          • Medium - Has the potential to affect progress.
          • Resolved

          Bug - A problem which impairs or prevents the functions of the product. SR-7981 `self` available without backticks in let initialization closure of NSObject

          • Medium - Has the potential to affect progress.
          • Resolved

          Bug - A problem which impairs or prevents the functions of the product. SR-8440 Using self inside a let initializer

          • Medium - Has the potential to affect progress.
          • Resolved
          relates to

          Bug - A problem which impairs or prevents the functions of the product. SR-4138 Static properties are allowed to use without qualifier in initializer of instance property

          • Medium - Has the potential to affect progress.
          • Open

            Activity

              People

              Assignee:
              mouhcine Mouhcine El Amine
              Reporter:
              mouhcine Mouhcine El Amine
              Votes:
              8 Vote for this issue
              Watchers:
              18 Start watching this issue

                Dates

                Created:
                Updated:
                Resolved: