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Merge pull request #85451 from xedin/rdar-164201746

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[CSOptimizer] Skip `??` if it's involved in optional chain with unres…
This commit is contained in:
Pavel Yaskevich
2025-11-12 17:30:51 -08:00
committed by GitHub
parent 669f6dc83f a01692ace1
commit 4bd370fe46
2 changed files with 41 additions and 0 deletions
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9
test/Constraints/nil-coalescing-favoring.swift
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@@ -62,3 +62,12 @@ func test_no_incorrect_favoring(v: Int?, o: Int) {
sameType(s1, as: Int?.self)
sameType(s2, as: Int?.self)
}
extension Int {
func test() -> Int { 42 }
}
func test_optional_chaining(v: Int?, defaultV: Int) {
// CHECK: declref_expr type="(consuming Int?, @autoclosure () throws -> Int?) throws -> Int?" {{.*}} decl="Swift.(file).??
_ = (v ?? defaultV)?.test() // Ok (no warnings)
}