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Malte UblandClaude Opus 5.5
b831d840d7
A getter that only throws (`get page(): never`, or Next.js's unannotated removed-API getters) or has no return statement declared a VOID property type, so the class was refused (SC2001). No read of such a getter produces a value other than undefined; the property now takes the checked-dynamic slot, and each read throws the getter's error or answers undefined. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
37 lines
907 B
TypeScript
37 lines
907 B
TypeScript
// A getter that never returns a value compiles: annotated `never` or
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// unannotated (the removed-API getter idiom, which throws), and a getter
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// without a return statement, whose reads answer undefined.
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class Req {
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ok = 1;
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get page(): never {
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throw new Error("page has been removed");
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}
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get ua(): never {
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throw new TypeError("ua has been removed");
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}
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public get legacy() {
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throw new RangeError("legacy has been removed");
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}
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get nothing() {
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return;
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}
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}
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const r = new Req();
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try {
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console.log(r.page);
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} catch (e) {
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console.log(e instanceof Error ? `${e.name}: ${e.message}` : e);
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}
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try {
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const ua = r.ua;
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console.log("unreachable", ua);
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} catch (e) {
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console.log(e instanceof Error ? `${e.name}: ${e.message}` : e);
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}
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try {
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console.log(r.legacy);
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} catch (e) {
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console.log(e instanceof Error ? `${e.name}: ${e.message}` : e);
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}
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console.log(r.ok, r.nothing);
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