mirror of
https://github.com/vercel-labs/scriptc.git
synced 2026-10-02 08:35:07 +08:00
Chris Tate
31332427b6
- Preserve fresh constructor identity and shared captures across local class instances. - Carry constructors through unknown values without a JavaScript engine. - Support runtime-length spreads into fixed and rest parameters.
33 lines
949 B
TypeScript
33 lines
949 B
TypeScript
function make(value: number) {
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return () => class Local {
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read(): number { return value; }
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async delayed(): Promise<number> { await Promise.resolve(); return ++value; }
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};
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}
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const evaluate = make(2);
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const First = evaluate();
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const Second = evaluate();
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const first = new First();
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const second = new Second();
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console.log(First === Second, await first.delayed(), second.read());
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function loop(): number[] {
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const reads: (() => number)[] = [];
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for (let i = 0; i < 3; i++) {
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const Local = class { read(): number { return i; } };
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const value = new Local();
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reads.push(() => value.read());
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}
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return reads.map((read) => read());
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}
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console.log(loop().join(","));
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function tdz(): void {
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const Local = class { read(): number { return later; } };
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const value = new Local();
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try { console.log(value.read()); } catch (error) { console.log((error as Error).name); }
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let later = 17;
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console.log(value.read());
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}
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tdz();
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