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This allows expressions such as ".foo" and ".foo(1)" to refer to static variables and static methods, respectively, as well as enum cases. To get here, rework the parsing of delayed identifier expressions a bit, so that the argument itself is part of the delayed argument expression rather than a separate call expression. This simplifies both the handling of patterns of this form and the type checker, which can now user simpler constraints. If we really want to support (.foo)(1), we can make that work, but it seems unnecessary and perhaps confusing. Swift SVN r10626
28 lines
631 B
Swift
28 lines
631 B
Swift
// RUN: %swift -parse %s -verify
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// Simple struct types
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struct X1 {
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static func create(i: Int) -> X1 { }
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static func createGeneric<T>(d: T) -> X1 { }
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static func notAFactory(i: Int) -> Int { }
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}
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// Static methods
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var x1: X1 = .create(5)
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x1 = .createGeneric(3.14159)
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// Non-matching data members
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x1 = .notAFactory(5) // expected-error{{'X1' is not identical to 'Int'}}
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// Generic struct types
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struct X2<T> {
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static func create(t: T) -> X2 { }
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static func createGeneric<U>(t: T, u:U) -> X2 { }
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}
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// Static methods
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var x2a: X2 = .create(5)
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x2a = .createGeneric(5, 3.14159)
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var x2b: X2 = .createGeneric(5, 3.14159)
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