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[NFC][tests] Add regression tests for SR-14499 #37471

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Merged
merged 1 commit into from
May 18, 2021
Merged

[NFC][tests] Add regression tests for SR-14499 #37471

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39 changes: 39 additions & 0 deletions test/expr/unary/keypath/keypath.swift
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Original file line number Diff line number Diff line change
Expand Up @@ -1111,3 +1111,42 @@ func test_kp_as_function_mismatch() {
_ = a.filter(\String.filterOut) // expected-error{{key path value type '(String) throws -> Bool' cannot be converted to contextual type 'Bool'}}

}

// SR-14499
struct SR14499_A { }
struct SR14499_B { }

func sr14499() {
func reproduceA() -> [(SR14499_A, SR14499_B)] {
[
(true, .init(), SR14499_B.init()) // expected-error {{cannot infer contextual base in reference to member 'init'}}
]
.filter(\.0) // expected-error {{value of type 'Any' has no member '0'}}
// expected-note@-1 {{cast 'Any' to 'AnyObject' or use 'as!' to force downcast to a more specific type to access members}}
.prefix(3)
.map { ($0.1, $0.2) } // expected-error {{value of type 'Any' has no member '1'}} expected-error{{value of type 'Any' has no member '2'}}
// expected-note@-1 2 {{cast 'Any' to 'AnyObject' or use 'as!' to force downcast to a more specific type to access members}}
}

func reproduceB() -> [(SR14499_A, SR14499_B)] {
[
(true, SR14499_A.init(), .init()) // expected-error {{cannot infer contextual base in reference to member 'init'}}
]
.filter(\.0) // expected-error {{value of type 'Any' has no member '0'}}
// expected-note@-1 {{cast 'Any' to 'AnyObject' or use 'as!' to force downcast to a more specific type to access members}}
.prefix(3)
.map { ($0.1, $0.2) } // expected-error {{value of type 'Any' has no member '1'}} expected-error{{value of type 'Any' has no member '2'}}
// expected-note@-1 2 {{cast 'Any' to 'AnyObject' or use 'as!' to force downcast to a more specific type to access members}}
}

func reproduceC() -> [(SR14499_A, SR14499_B)] {
[
(true, .init(), .init()) // expected-error 2 {{cannot infer contextual base in reference to member 'init'}}
]
.filter(\.0) // expected-error {{value of type 'Any' has no member '0'}}
// expected-note@-1 {{cast 'Any' to 'AnyObject' or use 'as!' to force downcast to a more specific type to access members}}
.prefix(3)
.map { ($0.1, $0.2) } // expected-error {{value of type 'Any' has no member '1'}} expected-error{{value of type 'Any' has no member '2'}}
// expected-note@-1 2 {{cast 'Any' to 'AnyObject' or use 'as!' to force downcast to a more specific type to access members}}
}
}