Doug Gregor bc2e605b31 [Property wrappers] Improve enclosing-self subscript handling. ...

Extend handling of enclosing-self subscripts by differentiating
between the original wrapped property (which now goes through
`subscript(_enclosingInstance:wrapped:storage:)`) and the projected
property (which goes through
`subscript(_enclosingInstance:projected:storage:)`). The new middle
argument provides a key path to the property that was accessed,
allowing one to distinguish the property being updated.

2019-06-29 23:22:01 -07:00

107 KiB

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