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https://github.com/vercel-labs/scriptc.git
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Chris Tate
bf21f47827
- Preserve async factory results and mixed table layouts through inference and destructuring. - Support checked Map and Object.fromEntries construction with native weak collections. - Keep native weak-key lifetimes and engine-backed collection identities intact.
15 lines
614 B
JavaScript
15 lines
614 B
JavaScript
let calls = 0;
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let x;
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let y;
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function make(value) { calls++; return value; }
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const source = { nested: { make } };
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const record = { x: 3, y: 7 };
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const result = ({ x, y } = make(record));
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console.log(calls, x, y, result === record);
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({ x, y } = source.nested.make({ x: 11, y: 13 }));
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console.log(calls, x, y);
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try { ({ x } = make(null)); } catch (error) { console.log(error.name, error.message); }
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try { ({ x } = source.nested.make(undefined)); } catch (error) { console.log(error.name, error.message); }
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try { ({} = make(undefined)); } catch (error) { console.log(error.name, error.message); }
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console.log(calls);
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