@mysten/bcs - npm Package Compare versions

Comparing version 0.0.0-experimental-20240106194601 to 0.0.0-experimental-20240201191544

CHANGELOG.md

 # Change Log
 
-## 0.0.0-experimental-20240106194601
+## 0.0.0-experimental-20240201191544
 
+### Minor Changes
+
+- bae8802fe3: Update base64 encoding to use global `atob` and `btoa` functions.
+
+## 0.10.1
+
 ### Patch Changes
@@ -6,0 +12,0 @@

dist/cjs/b64.d.ts

@@ -1,2 +0,2 @@
-export declare function fromB64(sBase64: string, nBlocksSize?: number): Uint8Array;
-export declare function toB64(aBytes: Uint8Array): string;
+export declare function fromB64(base64String: string): Uint8Array;
+export declare function toB64(bytes: Uint8Array): string;

dist/cjs/b64.js

@@ -25,39 +25,17 @@ "use strict";
 module.exports = __toCommonJS(b64_exports);
-function b64ToUint6(nChr) {
-  return nChr > 64 && nChr < 91 ? nChr - 65 : nChr > 96 && nChr < 123 ? nChr - 71 : nChr > 47 && nChr < 58 ? nChr + 4 : nChr === 43 ? 62 : nChr === 47 ? 63 : 0;
+function fromB64(base64String) {
+  return Uint8Array.from(atob(base64String), (char) => char.charCodeAt(0));
 }
-function fromB64(sBase64, nBlocksSize) {
-  var sB64Enc = sBase64.replace(/[^A-Za-z0-9+/]/g, ""), nInLen = sB64Enc.length, nOutLen = nBlocksSize ? Math.ceil((nInLen * 3 + 1 >> 2) / nBlocksSize) * nBlocksSize : nInLen * 3 + 1 >> 2, taBytes = new Uint8Array(nOutLen);
-  for (var nMod3, nMod4, nUint24 = 0, nOutIdx = 0, nInIdx = 0; nInIdx < nInLen; nInIdx++) {
-    nMod4 = nInIdx & 3;
-    nUint24 |= b64ToUint6(sB64Enc.charCodeAt(nInIdx)) << 6 * (3 - nMod4);
-    if (nMod4 === 3 || nInLen - nInIdx === 1) {
-      for (nMod3 = 0; nMod3 < 3 && nOutIdx < nOutLen; nMod3++, nOutIdx++) {
-        taBytes[nOutIdx] = nUint24 >>> (16 >>> nMod3 & 24) & 255;
-      }
-      nUint24 = 0;
-    }
+const CHUNK_SIZE = 8192;
+function toB64(bytes) {
+  if (bytes.length < CHUNK_SIZE) {
+    return btoa(String.fromCharCode(...bytes));
   }
-  return taBytes;
-}
-function uint6ToB64(nUint6) {
-  return nUint6 < 26 ? nUint6 + 65 : nUint6 < 52 ? nUint6 + 71 : nUint6 < 62 ? nUint6 - 4 : nUint6 === 62 ? 43 : nUint6 === 63 ? 47 : 65;
-}
-function toB64(aBytes) {
-  var nMod3 = 2, sB64Enc = "";
-  for (var nLen = aBytes.length, nUint24 = 0, nIdx = 0; nIdx < nLen; nIdx++) {
-    nMod3 = nIdx % 3;
-    nUint24 |= aBytes[nIdx] << (16 >>> nMod3 & 24);
-    if (nMod3 === 2 || aBytes.length - nIdx === 1) {
-      sB64Enc += String.fromCodePoint(
-        uint6ToB64(nUint24 >>> 18 & 63),
-        uint6ToB64(nUint24 >>> 12 & 63),
-        uint6ToB64(nUint24 >>> 6 & 63),
-        uint6ToB64(nUint24 & 63)
-      );
-      nUint24 = 0;
-    }
+  let output = "";
+  for (var i = 0; i < bytes.length; i += CHUNK_SIZE) {
+    const chunk = bytes.slice(i, i + CHUNK_SIZE);
+    output += String.fromCharCode(...chunk);
   }
-  return sB64Enc.slice(0, sB64Enc.length - 2 + nMod3) + (nMod3 === 2 ? "" : nMod3 === 1 ? "=" : "==");
+  return btoa(output);
 }
 //# sourceMappingURL=b64.js.map

dist/esm/b64.d.ts

@@ -1,2 +0,2 @@
-export declare function fromB64(sBase64: string, nBlocksSize?: number): Uint8Array;
-export declare function toB64(aBytes: Uint8Array): string;
+export declare function fromB64(base64String: string): Uint8Array;
+export declare function toB64(bytes: Uint8Array): string;

dist/esm/b64.js

@@ -1,37 +0,15 @@
-function b64ToUint6(nChr) {
-  return nChr > 64 && nChr < 91 ? nChr - 65 : nChr > 96 && nChr < 123 ? nChr - 71 : nChr > 47 && nChr < 58 ? nChr + 4 : nChr === 43 ? 62 : nChr === 47 ? 63 : 0;
+function fromB64(base64String) {
+  return Uint8Array.from(atob(base64String), (char) => char.charCodeAt(0));
 }
-function fromB64(sBase64, nBlocksSize) {
-  var sB64Enc = sBase64.replace(/[^A-Za-z0-9+/]/g, ""), nInLen = sB64Enc.length, nOutLen = nBlocksSize ? Math.ceil((nInLen * 3 + 1 >> 2) / nBlocksSize) * nBlocksSize : nInLen * 3 + 1 >> 2, taBytes = new Uint8Array(nOutLen);
-  for (var nMod3, nMod4, nUint24 = 0, nOutIdx = 0, nInIdx = 0; nInIdx < nInLen; nInIdx++) {
-    nMod4 = nInIdx & 3;
-    nUint24 |= b64ToUint6(sB64Enc.charCodeAt(nInIdx)) << 6 * (3 - nMod4);
-    if (nMod4 === 3 || nInLen - nInIdx === 1) {
-      for (nMod3 = 0; nMod3 < 3 && nOutIdx < nOutLen; nMod3++, nOutIdx++) {
-        taBytes[nOutIdx] = nUint24 >>> (16 >>> nMod3 & 24) & 255;
-      }
-      nUint24 = 0;
-    }
+const CHUNK_SIZE = 8192;
+function toB64(bytes) {
+  if (bytes.length < CHUNK_SIZE) {
+    return btoa(String.fromCharCode(...bytes));
   }
-  return taBytes;
-}
-function uint6ToB64(nUint6) {
-  return nUint6 < 26 ? nUint6 + 65 : nUint6 < 52 ? nUint6 + 71 : nUint6 < 62 ? nUint6 - 4 : nUint6 === 62 ? 43 : nUint6 === 63 ? 47 : 65;
-}
-function toB64(aBytes) {
-  var nMod3 = 2, sB64Enc = "";
-  for (var nLen = aBytes.length, nUint24 = 0, nIdx = 0; nIdx < nLen; nIdx++) {
-    nMod3 = nIdx % 3;
-    nUint24 |= aBytes[nIdx] << (16 >>> nMod3 & 24);
-    if (nMod3 === 2 || aBytes.length - nIdx === 1) {
-      sB64Enc += String.fromCodePoint(
-        uint6ToB64(nUint24 >>> 18 & 63),
-        uint6ToB64(nUint24 >>> 12 & 63),
-        uint6ToB64(nUint24 >>> 6 & 63),
-        uint6ToB64(nUint24 & 63)
-      );
-      nUint24 = 0;
-    }
+  let output = "";
+  for (var i = 0; i < bytes.length; i += CHUNK_SIZE) {
+    const chunk = bytes.slice(i, i + CHUNK_SIZE);
+    output += String.fromCharCode(...chunk);
   }
-  return sB64Enc.slice(0, sB64Enc.length - 2 + nMod3) + (nMod3 === 2 ? "" : nMod3 === 1 ? "=" : "==");
+  return btoa(output);
 }
@@ -38,0 +16,0 @@ export {

package.json

 {
   "name": "@mysten/bcs",
-  "version": "0.0.0-experimental-20240106194601",
+  "version": "0.0.0-experimental-20240201191544",
   "description": "BCS - Canonical Binary Serialization implementation for JavaScript",
@@ -5,0 +5,0 @@ "license": "Apache-2.0",

src/b64.ts

 // Copyright (c) Mysten Labs, Inc.
 // SPDX-License-Identifier: Apache-2.0
 
-/*\
-|*|  Base64 / binary data / UTF-8 strings utilities
-|*|  https://developer.mozilla.org/en-US/docs/Web/JavaScript/Base64_encoding_and_decoding
-\*/
-
-/* Array of bytes to Base64 string decoding */
-
-function b64ToUint6(nChr: number) {
-	return nChr > 64 && nChr < 91
-		? nChr - 65
-		: nChr > 96 && nChr < 123
-		? nChr - 71
-		: nChr > 47 && nChr < 58
-		? nChr + 4
-		: nChr === 43
-		? 62
-		: nChr === 47
-		? 63
-		: 0;
+export function fromB64(base64String: string): Uint8Array {
+	return Uint8Array.from(atob(base64String), (char) => char.charCodeAt(0));
 }
 
-export function fromB64(sBase64: string, nBlocksSize?: number): Uint8Array {
-	var sB64Enc = sBase64.replace(/[^A-Za-z0-9+/]/g, ''),
-		nInLen = sB64Enc.length,
-		nOutLen = nBlocksSize
-			? Math.ceil(((nInLen * 3 + 1) >> 2) / nBlocksSize) * nBlocksSize
-			: (nInLen * 3 + 1) >> 2,
-		taBytes = new Uint8Array(nOutLen);
-
-	for (var nMod3, nMod4, nUint24 = 0, nOutIdx = 0, nInIdx = 0; nInIdx < nInLen; nInIdx++) {
-		nMod4 = nInIdx & 3;
-		nUint24 |= b64ToUint6(sB64Enc.charCodeAt(nInIdx)) << (6 * (3 - nMod4));
-		if (nMod4 === 3 || nInLen - nInIdx === 1) {
-			for (nMod3 = 0; nMod3 < 3 && nOutIdx < nOutLen; nMod3++, nOutIdx++) {
-				taBytes[nOutIdx] = (nUint24 >>> ((16 >>> nMod3) & 24)) & 255;
-			}
-			nUint24 = 0;
-		}
+const CHUNK_SIZE = 8192;
+export function toB64(bytes: Uint8Array): string {
+	// Special-case the simple case for speed's sake.
+	if (bytes.length < CHUNK_SIZE) {
+		return btoa(String.fromCharCode(...bytes));
 	}
 
-	return taBytes;
-}
-
-/* Base64 string to array encoding */
-
-function uint6ToB64(nUint6: number) {
-	return nUint6 < 26
-		? nUint6 + 65
-		: nUint6 < 52
-		? nUint6 + 71
-		: nUint6 < 62
-		? nUint6 - 4
-		: nUint6 === 62
-		? 43
-		: nUint6 === 63
-		? 47
-		: 65;
-}
-
-export function toB64(aBytes: Uint8Array): string {
-	var nMod3 = 2,
-		sB64Enc = '';
-
-	for (var nLen = aBytes.length, nUint24 = 0, nIdx = 0; nIdx < nLen; nIdx++) {
-		nMod3 = nIdx % 3;
-		nUint24 |= aBytes[nIdx] << ((16 >>> nMod3) & 24);
-		if (nMod3 === 2 || aBytes.length - nIdx === 1) {
-			sB64Enc += String.fromCodePoint(
-				uint6ToB64((nUint24 >>> 18) & 63),
-				uint6ToB64((nUint24 >>> 12) & 63),
-				uint6ToB64((nUint24 >>> 6) & 63),
-				uint6ToB64(nUint24 & 63),
-			);
-			nUint24 = 0;
-		}
+	let output = '';
+	for (var i = 0; i < bytes.length; i += CHUNK_SIZE) {
+		const chunk = bytes.slice(i, i + CHUNK_SIZE);
+		output += String.fromCharCode(...chunk);
 	}
 
-	return (
-		sB64Enc.slice(0, sB64Enc.length - 2 + nMod3) + (nMod3 === 2 ? '' : nMod3 === 1 ? '=' : '==')
-	);
+	return btoa(output);
 }

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Worsened metrics

Total package byte prevSize

573415

decreased by-1.52%

Lines of code

8394

decreased by-1.17%

No dependency changes