Completion - Memberwise init

[MartTave]

The auto-completion suggestion when instancing a struct have an item for the memberwise init, but with no arguments.

The item should be filled with all members as arguments.

Example :

struct A {
  public memberwise init
  public init(arg1: Bool) {
    self.m1 = !arg1  
  }
  public let m1: Bool
}

A  // <-Trigger autcompletion here
// Results :
// - A()            <-- This should fill the different members of A as arguments of constructor
// - A(arg1: Bool)

[tothambrus11]

Not sure what the exact syntax is, but let a: A = .init(arg1: true) may be also a valid syntax, and maybe also let a: A = A.init(arg1: true).

[MartTave]

This has been fixed, in part thanks to the new expression extraction system.

Now, the completion for initializers is a little different (inspired from the swift LSP).

If we trigger the autocompletion in the scope, we see a single entry for the struct/class :

struct A {
  public memberwise init
  public init(l1 arg1: Bool) {
    self.m1 = !arg1  
  }
  public let m1: Bool
}
A // <- Trigger autocompletion here
// Results :
// - A

And then, when we type '(', there is a second shot of completion that gets called with :

A(    // <- trigger completion here
// Results : 
// - (l1: Bool)
// - (m1: Bool)  <- This is the memberwise init

[tothambrus11]

That's awesome! You can also look at their implementation techniques in https://github.com/swiftlang/sourcekit-lsp