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//// [discriminantsAndNullOrUndefined.ts]
// Repro from #10228
interface A { kind: 'A'; }
interface B { kind: 'B'; }
type C = A | B | undefined;
function never(_: never): never {
throw new Error();
}
function useA(_: A): void { }
function useB(_: B): void { }
declare var c: C;
if (c !== undefined) {
switch (c.kind) {
case 'A': useA(c); break;
case 'B': useB(c); break;
default: never(c);
}
}
//// [discriminantsAndNullOrUndefined.js]
// Repro from #10228
function never(_) {
throw new Error();
}
function useA(_) { }
function useB(_) { }
if (c !== undefined) {
switch (c.kind) {
case 'A':
useA(c);
break;
case 'B':
useB(c);
break;
default: never(c);
}
}
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