langsmith/dist/utils/uuid/src/v35.js

Client library to connect to the LangSmith Observability and Evaluation Platform.

import parse from "./parse.js";
import { unsafeStringify } from "./stringify.js";
export function stringToBytes(str) {
    // TODO: Use TextEncoder (see https://stackoverflow.com/a/48762658/109538)
    str = unescape(encodeURIComponent(str));
    const bytes = new Uint8Array(str.length);
    for (let i = 0; i < str.length; ++i) {
        bytes[i] = str.charCodeAt(i);
    }
    return bytes;
}
export const DNS = "6ba7b810-9dad-11d1-80b4-00c04fd430c8";
export const URL = "6ba7b811-9dad-11d1-80b4-00c04fd430c8";
export default function v35(version, hash, value, namespace, buf, offset) {
    const valueBytes = typeof value === "string" ? stringToBytes(value) : value;
    const namespaceBytes = typeof namespace === "string" ? parse(namespace) : namespace;
    if (typeof namespace === "string") {
        namespace = parse(namespace);
    }
    if (namespace?.length !== 16) {
        throw TypeError("Namespace must be array-like (16 iterable integer values, 0-255)");
    }
    // Compute hash of namespace and value, Per 4.3
    // Future: Use spread syntax when supported on all platforms, e.g. `bytes =
    // hashfunc([...namespace, ... value])`
    let bytes = new Uint8Array(16 + valueBytes.length);
    bytes.set(namespaceBytes);
    bytes.set(valueBytes, namespaceBytes.length);
    // eslint-disable-next-line @typescript-eslint/no-explicit-any
    bytes = hash(bytes);
    bytes[6] = (bytes[6] & 0x0f) | version;
    bytes[8] = (bytes[8] & 0x3f) | 0x80;
    if (buf) {
        offset ??= 0;
        if (offset < 0 || offset + 16 > buf.length) {
            throw new RangeError(`UUID byte range ${offset}:${offset + 15} is out of buffer bounds`);
        }
        for (let i = 0; i < 16; ++i) {
            buf[offset + i] = bytes[i];
        }
        return buf;
    }
    return unsafeStringify(bytes);
}