> On Apr 5, 2017, at 9:41 PM, Brent Royal-Gordon via swift-evolution > <[email protected]> wrote: > > It's worth noting that, if you write `\Person.name.valueType`, this syntax is > ambiguous—it could mean "make a key path for the `valueType` property on > `name` property of `Person`", or it could mean "make a key path for the > `name` property of `Person`, then access the key path's `valueType` > property". We can solve this by always interpreting it as the former and > requiring parentheses for the latter—that is, `(\Person.name).valueType`—but > I thought it was worth calling out explicitly.
Good point. I'm thinking about the hypothetical code examples from previous emails: let isPuppyQualifier = \Pet.type == .dog && \Pet.age < 12 let familyQualifier = (\Family.pets).contains(where: isPuppyQualifier) let familiesWithPuppies = Family.fetch(editingContext, familyQualifier)
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