[swift-users] Crash in generic struct

[Jan E. Schotsman]

On May 4, 2016, at 5:02 PM, Ryan Lovelett wrote:

> Drop the extension and move the initializer to the MyHeap struct and  
> it
> compiles for me on Swift 3.0. To me that indicates the answer to your
> first question: I would think you do not have a syntax error. That is:
>
> struct MyHeapElement <T:Comparable> {
>  var index: Int
>  var key: T
> }
>
> struct MyHeap <T:Comparable> {
>  var elements = [MyHeapElement<T>]()
>
>  init(withElements elements: [MyHeapElement<T>]) {
>    self.elements = elements
>  }
> }
>
> Regardless of whether it is or not you should file the bug at
> bugs.swift.org. As you say the compiler should never crash.

That way I lose the memberwise initializer and the default initializer.
This is yet another crashing bug related to the position of an  
extension.

In December I reported this bug which looks similar:

bug 23998571

If the struct definition and the extension are placed in two different  
files of a framework project the compiler crashes.

struct Description
	{
	var property:Int32 = 0
	}

extension Description
	{
	init( startPtr: UnsafePointer<Int32> )
		{
			property = startPtr[0]
			}
	}

Still open, still crashing.

Jan E.