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=== tests/cases/compiler/exhaustiveSwitchCheckCircularity.ts ===
// Repro from #47539
declare function isNever(n: never): boolean;
>isNever : Symbol(isNever, Decl(exhaustiveSwitchCheckCircularity.ts, 0, 0))
>n : Symbol(n, Decl(exhaustiveSwitchCheckCircularity.ts, 2, 25))
function f() {
>f : Symbol(f, Decl(exhaustiveSwitchCheckCircularity.ts, 2, 44))
let foo: "aaa" | "bbb" = "aaa";
>foo : Symbol(foo, Decl(exhaustiveSwitchCheckCircularity.ts, 5, 7))
while (true) {
switch (foo) {
>foo : Symbol(foo, Decl(exhaustiveSwitchCheckCircularity.ts, 5, 7))
case "aaa":
}
if (foo === "aaa") {
>foo : Symbol(foo, Decl(exhaustiveSwitchCheckCircularity.ts, 5, 7))
foo = "bbb";
>foo : Symbol(foo, Decl(exhaustiveSwitchCheckCircularity.ts, 5, 7))
}
else if (isNever(foo)) { // Error expected
>isNever : Symbol(isNever, Decl(exhaustiveSwitchCheckCircularity.ts, 0, 0))
>foo : Symbol(foo, Decl(exhaustiveSwitchCheckCircularity.ts, 5, 7))
break;
}
}
}
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