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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 | 1x 41x 41x 41x 41x 41x | /**
* Savepoint-name generator. Shared between `client.ts` (which
* uses `pgrls_actor_` for the `asRole` scope) and
* `assertions.ts` (which uses `pgrls_check_` for the
* `assertRejected` scope).
*
* Centralizing avoids drift between the two random schemes —
* the next time we want to tweak the suffix length or the
* random source, there's one place to do it.
*
* 4-byte random suffix → 8 hex chars → 4 billion options.
* Collisions in the same transaction are astronomically
* unlikely.
*
* Mirrors Python's `secrets.token_hex(4)` call sites.
*/
/**
* Build a savepoint name with the given prefix and a 4-byte
* cryptographically-random hex suffix.
*
* Uses `globalThis.crypto.getRandomValues` (WHATWG standard;
* available in Node ≥18, so well within our `engines.node`
* floor). Reaching via globalThis avoids needing a
* `node:crypto` import or an ambient `crypto` global decl.
*/
export function newSavepointName(prefix: string): string {
const bytes = new Uint8Array(4);
globalThis.crypto.getRandomValues(bytes);
const hex = Array.from(bytes, (b) => b.toString(16).padStart(2, '0')).join('');
return `${prefix}_${hex}`;
}
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