mirror of
https://github.com/vercel-labs/scriptc.git
synced 2026-10-02 08:35:07 +08:00
Chris Tate
7d5a471c67
- Preserve unbound class methods, call-time receivers, and bound callback arguments. - Keep native factory results, fallback functions, and mutable JavaScript renderer state intact. - Support live Error.cause assignment, deletion, and property descriptors across aliases.
28 lines
1.2 KiB
TypeScript
28 lines
1.2 KiB
TypeScript
class Counter {
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value: number;
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callback: (increment: number) => number;
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constructor(value: number) { this.value = value; this.callback = this.add; }
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add(increment: number): number { this.value += increment; return this.value; }
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constant(): number { return 11; }
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fail(): number { throw new Error("callback failed"); }
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}
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const first = new Counter(1);
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const second = new Counter(10);
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console.log(first.callback(2));
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second.callback = first.callback;
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console.log(second.callback(3), first.value);
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console.log(first.callback === first.add, first.add === second.add);
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const detached = first.callback;
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try { detached(1); } catch (error) { if (error instanceof Error) console.log(error.name); }
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const constant = first.constant;
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console.log(constant());
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const arrow = (value: number): number => value + 1;
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const alias = arrow.bind(null);
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const ordinary = (function(value: number): number { return value + 2; }).bind(null);
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console.log(alias(4), ordinary(4));
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const bound = first.add.bind(second);
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console.log(bound(2), second.value, first.value);
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console.log(first.add.call(second, 1), first.add.apply(first, [4]));
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try { first.fail.bind(first)(); } catch (error) { if (error instanceof Error) console.log(error.message); }
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console.log(bound(1));
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