mirror of
https://github.com/vercel-labs/scriptc.git
synced 2026-10-21 05:50:55 +08:00
Chris Tate
932ef772f2
- Borrow string inputs through proven helpers while preserving owned call boundaries. - Keep temporary array arguments on the stack with safe snapshots and compact lookups. - Bound shared LLVM shard growth and cover evaluation order, escaping values, and cleanup.
68 lines
2.4 KiB
TypeScript
68 lines
2.4 KiB
TypeScript
class Item {
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amount: number;
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constructor(amount: number) { this.amount = amount; }
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}
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function amount(value: Item | undefined): number { return value === undefined ? -1 : value.amount; }
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function pair(left: Item | undefined, right: Item | undefined): string {
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return String(amount(left)) + ":" + String(amount(right));
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}
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const values = [new Item(3), new Item(5)];
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function replace(): Item | undefined {
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values[0] = new Item(7);
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return values[0];
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}
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console.log(pair(values[0], replace()), amount(values[0]));
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function clear(): Item | undefined {
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values.length = 0;
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return undefined;
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}
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console.log(pair(values[0], clear()), values.length);
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values.push(new Item(11));
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function mutatePayload(): Item | undefined {
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values[0]!.amount = 13;
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return values[0];
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}
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console.log(pair(values[0], mutatePayload()));
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function clearInside(value: Item | undefined, source: Item[]): number {
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source.length = 0;
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return amount(value);
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}
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console.log(clearInside(values[0], values), values.length);
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function mutateIndex(source: Item[]): number {
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source[0] = new Item(17);
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return 0;
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}
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values.push(new Item(19));
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console.log(amount(values[mutateIndex(values)]), amount(values[0]));
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let binding = [new Item(23)];
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function replaceBinding(): number {
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binding = [new Item(29)];
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return 0;
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}
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console.log(amount(binding[replaceBinding()]), amount(binding[0]));
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function nested(source: Item[]): string {
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const earlier = new Item(31);
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source.push(earlier);
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return pair(source[0], source.pop());
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}
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console.log(nested([new Item(37)]));
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console.log(nested([]));
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function triplet(a: Item | undefined, b: Item | undefined, c: Item | undefined): string {
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return pair(a, b) + ":" + String(amount(c));
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}
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const three = [new Item(41), new Item(43), new Item(47)];
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function removeFirst(): Item | undefined { return three.shift(); }
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console.log(triplet(three[0], removeFirst(), three[0]), three.length);
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const records = [{ text: "first" }];
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function text(value: { text: string } | undefined, unused: number): string {
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return value === undefined ? "missing" : value.text + String(unused);
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}
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function removeRecord(): number { records.length = 0; return 1; }
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console.log(text(records[0], removeRecord()));
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const words = ["kept"];
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function word(value: string | undefined, unused: number): string {
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return value === undefined ? "missing" : value + String(unused);
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}
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function removeWord(): number { words.length = 0; return 2; }
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console.log(word(words[0], removeWord()));
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