[swift-evolution] Proposal: Unicode visualization annotations in declarations.

[Amir Michail]

Example source:

let alpha/𝛼 = 5
print(“alpha=\(alpha)”)

An IDE/editor that understands these visualization annotations would show this source as:

let alpha/𝛼 = 5
print(“alpha=\(𝛼)”)

Moving the cursor over 𝛼 would tell you in the status bar that this is a visualization for “alpha”.

Note that in the source, the unicode character only appears in the visualization annotation. 

Here’s another example:

enum Suit { case Heart/♡, Diamond/♢, Spade/♠︎, Club/♣︎ }
let x = Suit.Heart

In an IDE/editor that supports visualization annotations, the following would be shown:

enum Suit { case Heart/♡, Diamond/♢, Spade/♠︎, Club/♣︎ }
let x = Suit.♡

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