buffer-crc32 - npm Package Compare versions

Comparing version 1.0.0-RC2 to 1.0.0-RC3

dist/index.d.ts

@@ -1,304 +0,50 @@
-function getDefaultExportFromCjs (x) {
-	return x && x.__esModule && Object.prototype.hasOwnProperty.call(x, 'default') ? x['default'] : x;
-}
+/**
+ * crc32 that works with binary data and fancy character sets.
+ *
+ * @example
+ * import crc32 = require('buffer-crc32');
+ *
+ * // works with buffers
+ * const buf = Buffer.from([0x00, 0x73, 0x75, 0x70, 0x20, 0x62, 0x72, 0x6f, 0x00]);
+ * crc32(buf); // -> <Buffer 94 5a ab 4a>
+ *
+ * // will cast to buffer if given a string, so you can
+ * // directly use foreign characters safely
+ * crc32('自動販売機'); // -> <Buffer cb 03 1a c5>
+ *
+ * // and works in append mode too
+ * let partialCrc = crc32('hey');
+ * partialCrc = crc32(' ', partialCrc);
+ * partialCrc = crc32('sup', partialCrc);
+ * partialCrc = crc32(' ', partialCrc);
+ * const finalCrc = crc32('bros', partialCrc); // -> <Buffer 47 fa 55 70>
+ */
+declare function crc32(input: string | Buffer, partialCrc?: Buffer | number): Buffer;
 
-const CRC_TABLE = new Int32Array([
-  0,
-  1996959894,
-  3993919788,
-  2567524794,
-  124634137,
-  1886057615,
-  3915621685,
-  2657392035,
-  249268274,
-  2044508324,
-  3772115230,
-  2547177864,
-  162941995,
-  2125561021,
-  3887607047,
-  2428444049,
-  498536548,
-  1789927666,
-  4089016648,
-  2227061214,
-  450548861,
-  1843258603,
-  4107580753,
-  2211677639,
-  325883990,
-  1684777152,
-  4251122042,
-  2321926636,
-  335633487,
-  1661365465,
-  4195302755,
-  2366115317,
-  997073096,
-  1281953886,
-  3579855332,
-  2724688242,
-  1006888145,
-  1258607687,
-  3524101629,
-  2768942443,
-  901097722,
-  1119000684,
-  3686517206,
-  2898065728,
-  853044451,
-  1172266101,
-  3705015759,
-  2882616665,
-  651767980,
-  1373503546,
-  3369554304,
-  3218104598,
-  565507253,
-  1454621731,
-  3485111705,
-  3099436303,
-  671266974,
-  1594198024,
-  3322730930,
-  2970347812,
-  795835527,
-  1483230225,
-  3244367275,
-  3060149565,
-  1994146192,
-  31158534,
-  2563907772,
-  4023717930,
-  1907459465,
-  112637215,
-  2680153253,
-  3904427059,
-  2013776290,
-  251722036,
-  2517215374,
-  3775830040,
-  2137656763,
-  141376813,
-  2439277719,
-  3865271297,
-  1802195444,
-  476864866,
-  2238001368,
-  4066508878,
-  1812370925,
-  453092731,
-  2181625025,
-  4111451223,
-  1706088902,
-  314042704,
-  2344532202,
-  4240017532,
-  1658658271,
-  366619977,
-  2362670323,
-  4224994405,
-  1303535960,
-  984961486,
-  2747007092,
-  3569037538,
-  1256170817,
-  1037604311,
-  2765210733,
-  3554079995,
-  1131014506,
-  879679996,
-  2909243462,
-  3663771856,
-  1141124467,
-  855842277,
-  2852801631,
-  3708648649,
-  1342533948,
-  654459306,
-  3188396048,
-  3373015174,
-  1466479909,
-  544179635,
-  3110523913,
-  3462522015,
-  1591671054,
-  702138776,
-  2966460450,
-  3352799412,
-  1504918807,
-  783551873,
-  3082640443,
-  3233442989,
-  3988292384,
-  2596254646,
-  62317068,
-  1957810842,
-  3939845945,
-  2647816111,
-  81470997,
-  1943803523,
-  3814918930,
-  2489596804,
-  225274430,
-  2053790376,
-  3826175755,
-  2466906013,
-  167816743,
-  2097651377,
-  4027552580,
-  2265490386,
-  503444072,
-  1762050814,
-  4150417245,
-  2154129355,
-  426522225,
-  1852507879,
-  4275313526,
-  2312317920,
-  282753626,
-  1742555852,
-  4189708143,
-  2394877945,
-  397917763,
-  1622183637,
-  3604390888,
-  2714866558,
-  953729732,
-  1340076626,
-  3518719985,
-  2797360999,
-  1068828381,
-  1219638859,
-  3624741850,
-  2936675148,
-  906185462,
-  1090812512,
-  3747672003,
-  2825379669,
-  829329135,
-  1181335161,
-  3412177804,
-  3160834842,
-  628085408,
-  1382605366,
-  3423369109,
-  3138078467,
-  570562233,
-  1426400815,
-  3317316542,
-  2998733608,
-  733239954,
-  1555261956,
-  3268935591,
-  3050360625,
-  752459403,
-  1541320221,
-  2607071920,
-  3965973030,
-  1969922972,
-  40735498,
-  2617837225,
-  3943577151,
-  1913087877,
-  83908371,
-  2512341634,
-  3803740692,
-  2075208622,
-  213261112,
-  2463272603,
-  3855990285,
-  2094854071,
-  198958881,
-  2262029012,
-  4057260610,
-  1759359992,
-  534414190,
-  2176718541,
-  4139329115,
-  1873836001,
-  414664567,
-  2282248934,
-  4279200368,
-  1711684554,
-  285281116,
-  2405801727,
-  4167216745,
-  1634467795,
-  376229701,
-  2685067896,
-  3608007406,
-  1308918612,
-  956543938,
-  2808555105,
-  3495958263,
-  1231636301,
-  1047427035,
-  2932959818,
-  3654703836,
-  1088359270,
-  936918e3,
-  2847714899,
-  3736837829,
-  1202900863,
-  817233897,
-  3183342108,
-  3401237130,
-  1404277552,
-  615818150,
-  3134207493,
-  3453421203,
-  1423857449,
-  601450431,
-  3009837614,
-  3294710456,
-  1567103746,
-  711928724,
-  3020668471,
-  3272380065,
-  1510334235,
-  755167117
-]);
-function ensureBuffer(input) {
-  if (Buffer.isBuffer(input)) {
-    return input;
-  }
-  if (typeof input === "number") {
-    return Buffer.alloc(input);
-  } else if (typeof input === "string") {
-    return Buffer.from(input);
-  } else {
-    throw new Error("input must be buffer, number, or string, received " + typeof input);
-  }
+declare namespace crc32 {
+  /**
+   * Convenience method that returns a signed int instead of a `Buffer`.
+   *
+   * @example
+   * import crc32 = require('buffer-crc32');
+   *
+   * // works with buffers
+   * const buf = Buffer.from([0x00, 0x73, 0x75, 0x70, 0x20, 0x62, 0x72, 0x6f, 0x00]);
+   * crc32.signed(buf); // -> -1805997238
+   */
+  function signed(buffer: string | Buffer, partialCrc?: Buffer | number): number;
+
+  /**
+   * Convenience method that returns an unsigned int instead of a `Buffer`.
+   *
+   * @example
+   * import crc32 = require('buffer-crc32');
+   *
+   * // works with buffers
+   * const buf = Buffer.from([0x00, 0x73, 0x75, 0x70, 0x20, 0x62, 0x72, 0x6f, 0x00]);
+   * crc32.unsigned(buf); // -> 2488970058
+   */
+  function unsigned(buffer: string | Buffer, partialCrc?: Buffer | number): number;
 }
-function bufferizeInt(num) {
-  const tmp = ensureBuffer(4);
-  tmp.writeInt32BE(num, 0);
-  return tmp;
-}
-function _crc32(buf, previous) {
-  buf = ensureBuffer(buf);
-  if (Buffer.isBuffer(previous)) {
-    previous = previous.readUInt32BE(0);
-  }
-  let crc = ~~previous ^ -1;
-  for (var n = 0; n < buf.length; n++) {
-    crc = CRC_TABLE[(crc ^ buf[n]) & 255] ^ crc >>> 8;
-  }
-  return crc ^ -1;
-}
-function crc32() {
-  return bufferizeInt(_crc32.apply(null, arguments));
-}
-crc32.signed = function() {
-  return _crc32.apply(null, arguments);
-};
-crc32.unsigned = function() {
-  return _crc32.apply(null, arguments) >>> 0;
-};
-var bufferCrc32 = crc32;
 
-var index = /*@__PURE__*/getDefaultExportFromCjs(bufferCrc32);
-
-export { index as default };
+export { crc32 as default };

package.json

@@ -5,3 +5,3 @@ {
   "description": "A pure javascript CRC32 algorithm that plays nice with binary data",
-  "version": "1.0.0-RC2",
+  "version": "1.0.0-RC3",
   "licenses": [
@@ -45,8 +45,16 @@ {
       "require": "./dist/index.cjs"
+    },
+    "./types": {
+      "import": "./dist/index.d.mts",
+      "require": "./dist/index.d.cts"
     }
   },
   "main": "./dist/index.cjs",
+  "types": "./dist/index.d.cts",
   "files": [
-    "dist"
+    "dist",
+    "index.d.ts",
+    "LICENSE",
+    "README.md"
   ]
 }

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Improved metrics

Number of package files

9

increased by12.5%

Worsened metrics

Total package byte prevSize

20212

decreased by-26.81%

Lines of code

701

decreased by-22.46%

No dependency changes