Doug Gregor a8b61a52d3 Introduce new refactoring code actions based on the Swift syntax tree. ...

This change includes a number of new refactoring code actions that
build on the syntax refactorings for the SwiftRefactor module of swift-syntax:

  * Add digit separators to an integer literal, e.g., `1000000` ->
    `1_000_000`.
  * Remove digit separators from an integer literal, e.g., 1_000_000 ->
    1000000.
  * Format a raw string literal, e.g., `"Hello \#(world)"` ->
    `##"Hello\#(world)"##`
  * Migrate to new if let syntax, e.g., `if let x = x { ... }` ->
    `if let x { ... }`
  * Replace opaque parameters with generic parameters, e.g.,
    `func f(p: some P)` --> `func f<T1: P>(p: T1)`.

This is generally easy to do, requiring one conformance to provide a name for the refactoring:

    extension AddSeparatorsToIntegerLiteral: SyntaxRefactoringCodeActionProvider {
      public static var title: String { "Add digit separators" }
    }

2024-04-16 23:00:20 -07:00

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