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2b78e16224
In some situations it is possible to determine that a particular associated value is completely covered by a given `switch` statement before running main checker algorithm, so let's not include sizes of such cases into "total" search space size estimate. Resolves: rdar://problem/40400251
38 lines
788 B
Swift
38 lines
788 B
Swift
// RUN: %target-typecheck-verify-swift
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enum E1 {
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case v1
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case v2
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case v3
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case v4
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case v5
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case v6
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indirect case v7(E1)
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}
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enum E2 {
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case foo((E1, E1, E1)) // total size of this case is 7 ^ 3 + 1
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case bar(E1)
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case baz
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}
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func foo(_ e: E2) {
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switch e {
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// expected-error@-1 {{switch must be exhaustive}}
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// expected-note@-2 {{add missing case: '.bar(_)'}}
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case .foo(let tuple): break // expected-warning {{immutable value 'tuple' was never used; consider replacing with '_' or removing it}}
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case .baz: break
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}
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}
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func bar(_ e: E2) {
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switch e {
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// expected-error@-1 {{switch must be exhaustive}}
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// expected-note@-2 {{add missing case: '.bar(_)'}}
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// expected-note@-3 {{add missing case: '.baz'}}
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case .foo((_, _, _)): break
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}
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}
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