mirror of
https://github.com/vercel-labs/scriptc.git
synced 2026-10-28 06:53:42 +08:00
Chris Tate
0b168d5c23
- Borrow stable loop references and share guarded dense array reads. - Bound recursive cleanup across generated objects and runtime containers. - Preserve ownership through mutation, callbacks, sparse reads, and abrupt exits.
62 lines
1.7 KiB
TypeScript
62 lines
1.7 KiB
TypeScript
class Link { previous: Link | undefined = undefined; value = 0; }
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class DerivedLink extends Link { label = "node"; }
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function chain(length: number): void {
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let head: Link | undefined;
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for (let i = 0; i < length; i++) {
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const next = i % 2 === 0 ? new Link() : new DerivedLink();
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next.previous = head;
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next.value = i;
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head = next;
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}
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console.log(head?.value);
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}
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chain(250_000);
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console.log("released");
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class Branch { children: Branch[] = []; value = 0; }
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function branches(length: number): void {
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let head = new Branch();
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for (let i = 0; i < length; i++) {
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const next = new Branch();
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next.children.push(head);
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next.value = i;
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head = next;
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}
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console.log(head.value);
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}
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branches(100_000);
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console.log("containers released");
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function checkedContainers(length: number): void {
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let head: unknown = undefined;
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for (let i = 0; i < length; i++) head = [head];
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console.log(Array.isArray(head));
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head = undefined;
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for (let i = 0; i < length; i++) {
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const next = new Map<unknown, unknown>();
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next.set("previous", head);
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head = next;
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}
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console.log(head instanceof Map);
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}
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checkedContainers(5_000);
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console.log("checked containers released");
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function errorCauses(length: number): void {
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let head: unknown = undefined;
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for (let i = 0; i < length; i++) head = new Error("linked", { cause: head });
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console.log(head instanceof Error);
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}
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errorCauses(512);
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console.log("causes released");
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function capturedClosures(length: number): void {
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let head: () => number = () => 0;
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for (let i = 0; i < length; i++) {
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const previous = head;
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head = () => previous();
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}
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console.log(typeof head);
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}
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capturedClosures(5_000);
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console.log("captures released");
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