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793b3326af
The rule changes are as follows: * All functions (introduced with the 'func' keyword) have argument labels for arguments beyond the first, by default. Methods are no longer special in this regard. * The presence of a default argument no longer implies an argument label. The actual changes to the parser and printer are fairly simple; the rest of the noise is updating the standard library, overlays, tests, etc. With the standard library, this change is intended to be API neutral: I've added/removed #'s and _'s as appropriate to keep the user interface the same. If we want to separately consider using argument labels for more free functions now that the defaults in the language have shifted, we can tackle that separately. Fixes rdar://problem/17218256. Swift SVN r27704
73 lines
1.7 KiB
Swift
73 lines
1.7 KiB
Swift
// RUN: %target-parse-verify-swift
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struct A<B> { // expected-note{{generic type 'A' declared here}}
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init(x:Int) {}
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static func c() {}
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struct C<D> { // expected-error{{generic type 'C' nested in type}}
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static func e() {}
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}
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struct F {} // expected-error{{nested in generic type}}
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}
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struct B {}
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struct D {}
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protocol Runcible {}
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protocol Fungible {}
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func meta<T>(m: T.Type) {}
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func meta2<T>(m: T.Type, _ x: Int) {}
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func generic<T>(x: T) {}
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var a, b, c, d : Int
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a < b
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(a < b, c > d)
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// Parses as generic because of lparen after '>'
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(a < b, c > (d)) // expected-error{{use of undeclared type 'b'}} expected-note{{while parsing this '<' as a type parameter bracket}}
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// Parses as generic because of lparen after '>'
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(a<b, c>(d)) // expected-error{{use of undeclared type 'b'}} expected-note{{while parsing this '<' as a type parameter bracket}}
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a>(b)
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a > (b)
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generic<Int>(0) // expected-error{{cannot explicitly specialize a generic function}} expected-note{{while parsing this '<' as a type parameter bracket}}
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A<B>.c()
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A<A<B>>.c()
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A<A<B>.F>.c()
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A<(A<B>) -> B>.c()
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A<[[Int]]>.c()
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A<[[A<B>]]>.c()
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A<(Int, UnicodeScalar)>.c()
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A<(a:Int, b:UnicodeScalar)>.c()
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A<protocol<Runcible, Fungible>>.c()
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A<B>(x: 0)
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meta(A<B>.self)
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meta2(A<B>.self, 0)
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// FIXME: Nested generic types. Need to be able to express $T0<A, B, C> in the
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// typechecker.
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/*
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A<B>.C<D>.e()
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A<B>.C<D>(0)
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meta(A<B>.C<D>.self)
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meta2(A<B>.C<D>.self, 0)
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*/
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// TODO: parse empty <> list
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//A<>.c() // e/xpected-error{{xxx}}
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A<B, D>.c() // expected-error{{generic type 'A' specialized with too many type parameters (got 2, but expected 1)}} expected-error {{'<<error type>>.Type' does not have a member named 'c'}}
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A<B?>(x: 0) // parses as type
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a < b ? c : d
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