swift

d2cdf0fe - [Playground] Missing playground results for property accessors in a class wrapped in a struct (#77530)

[Playground] Missing playground results for property accessors in a class wrapped in a struct (#77530) When a decl that has properties with accessors (`get`, `set`, `willSet`, `didSet`, `subscript()`, etc) is nested inside another type, those accessor implementations aren't playground-transformed. The reason is that the playground transform uses an `ASTWalker` to get to the top-level structure, but then once it’s inside a type, it does directly nested `transformDecl()` calls. And that inner check is missing a case for accessors. This change adds an else-clause that checks if the declaration is a `AbstractVarDecl`, and if so, calls `transformDecl()` on each accessor. It's unfortunate that the playground transform reaches decls in two different ways (using an `ASTWalker` to get to the top-level decls but then using directly nested calls below). That issue seems to be worth resolving at some point (perhaps by using the `ASTWalker` for the whole traversal?)... but that would be a larger change requiring more thought, and so the missing results being fixed here are worth addressing with a safer short-term fix. rdar://139656464