[swift-evolution] "where" on a switch case with multiple items is misleading

Amir Michail a.michail at me.com
Fri Mar 11 06:42:21 CST 2016


switch x { 
	case a, b where …: ...

this currently means:

switch x { 
	case a where true, b where …: ...

Most people would probably think the “where" applies to both a and b.

To avoid this confusion, maybe if “where" is used for one item then it should be required for all items in that case?

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