mirror of
https://github.com/vercel-labs/scriptc.git
synced 2026-10-21 05:50:55 +08:00
Chris Tate
97a489845a
- Carry BigInts, Sets, and regular expressions through checked native storage without a JavaScript engine. - Preserve dictionary aliases, spreads, frozen metadata, and fluent initialization helpers. - Collect checked object and closure cycles while preserving live references.
29 lines
1.2 KiB
JavaScript
29 lines
1.2 KiB
JavaScript
function identity(value) { return value; }
|
|
function make() { return { values: new Set() }; }
|
|
const state = identity(make());
|
|
const values = state.values;
|
|
console.log(values.add(18446744073709551615n) === values, values.size);
|
|
values.add(0n).add(1).add("one");
|
|
console.log(values.has(18446744073709551615n), values.delete(0n), values.has(0n));
|
|
const visited = [];
|
|
values.forEach((value, duplicate, owner) => {
|
|
visited.push(String(value) + ":" + (value === duplicate) + ":" + (owner === values));
|
|
if (value === 1) { values.delete("one"); values.add(2); }
|
|
});
|
|
console.log(visited.join(","), values.size);
|
|
values.clear();
|
|
console.log(values.size);
|
|
|
|
for (const callback of [undefined, null, 1, "x", {}, 1n, false]) {
|
|
try { values.forEach(callback); } catch (error) { console.log(error.name, error.message); }
|
|
}
|
|
values.add(1).add(2);
|
|
values.forEach(function (value) { console.log(this.label, value); }, { label: "owner" });
|
|
try { values.forEach(() => { throw new Error("stop"); }); } catch (error) { console.log(error.message); }
|
|
const cleared = [];
|
|
values.forEach((value) => {
|
|
cleared.push(value);
|
|
if (value === 1) { values.clear(); values.add(3); }
|
|
});
|
|
console.log(cleared.join(","), values.size, values instanceof Set);
|