@chainsafe/lodestar-utils - npm Package Compare versions

Comparing version 0.6.0 to 0.7.0

lib/bytes.d.ts

 /// <reference types="node" />
+declare type Endianness = "le" | "be";
 /**
  * Return a byte array from a number or BigInt
  */
-export declare function intToBytes(value: bigint | number, length: number): Buffer;
+export declare function intToBytes(value: bigint | number, length: number, endianness?: Endianness): Buffer;
 /**
  * Convert byte array in LE to integer.
  */
-export declare function bytesToInt(value: Uint8Array): number;
-export declare function bytesToBigInt(value: Uint8Array): bigint;
-export declare function bigIntToBytes(value: bigint, length: number): Uint8Array;
+export declare function bytesToInt(value: Uint8Array, endianness?: Endianness): number;
+export declare function bigIntToBytes(value: bigint, length: number, endianness?: Endianness): Buffer;
+export declare function bytesToBigInt(value: Uint8Array, endianness?: Endianness): bigint;
 export declare function toHex(buffer: Uint8Array): string;
 export declare function fromHex(hex: string): Uint8Array;
+export {};

lib/bytes.js

@@ -8,4 +8,4 @@ "use strict";
 exports.bytesToInt = bytesToInt;
+exports.bigIntToBytes = bigIntToBytes;
 exports.bytesToBigInt = bytesToBigInt;
-exports.bigIntToBytes = bigIntToBytes;
 exports.toHex = toHex;
@@ -19,13 +19,4 @@ exports.fromHex = fromHex;
  */
-function intToBytes(value, length) {
-  if (typeof value === "number" && length <= 6) {
-    // value is a number and length is at most 6 bytes
-    const b = Buffer.alloc(length);
-    b.writeUIntLE(value, 0, length);
-    return b;
-  } else {
-    // value is number and is too large, or a BigInt
-    value = BigInt(value);
-    return (0, _bigintBuffer.toBufferLE)(value, length);
-  }
+function intToBytes(value, length, endianness = "le") {
+  return bigIntToBytes(BigInt(value), length, endianness);
 }
@@ -37,20 +28,24 @@ /**
 
-function bytesToInt(value) {
-  const length = value.length;
-  let result = 0;
+function bytesToInt(value, endianness = "le") {
+  return Number(bytesToBigInt(value, endianness));
+}
 
-  for (let i = 0; i < length; i++) {
-    result += value[i] * 2 ** (8 * i);
+function bigIntToBytes(value, length, endianness = "le") {
+  if (endianness === "le") {
+    return (0, _bigintBuffer.toBufferLE)(value, length);
+  } else if (endianness === "be") {
+    return (0, _bigintBuffer.toBufferBE)(value, length);
   }
 
-  return result;
+  throw new Error("endianness must be either 'le' or 'be'");
 }
 
-function bytesToBigInt(value) {
-  return (0, _bigintBuffer.toBigIntLE)(value);
-}
+function bytesToBigInt(value, endianness = "le") {
+  if (endianness === "le") {
+    return (0, _bigintBuffer.toBigIntLE)(value);
+  } else if (endianness === "be") {
+    return (0, _bigintBuffer.toBigIntBE)(value);
+  }
 
-function bigIntToBytes(value, length) {
-  const b = (0, _bigintBuffer.toBufferLE)(value, length);
-  return new Uint8Array(b.buffer, b.byteOffset, length);
+  throw new Error("endianness must be either 'le' or 'be'");
 }
@@ -57,0 +52,0 @@

package.json

@@ -14,3 +14,3 @@ {
   },
-  "version": "0.6.0",
+  "version": "0.7.0",
   "main": "lib/index.js",
@@ -38,3 +38,3 @@ "files": [
   "dependencies": {
-    "@chainsafe/ssz": "^0.6.2",
+    "@chainsafe/ssz": "^0.6.4",
     "bigint-buffer": "^1.1.5",
@@ -61,3 +61,3 @@ "camelcase": "^5.3.1",
   ],
-  "gitHead": "0e426d2e5816b88d2d1508f42a127a4f89082781"
+  "gitHead": "6d82733185253e922300cbeca7cd56f778b30008"
 }

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Improved metrics

Total package byte prevSize

69695

increased by0.25%

Worsened metrics

Lines of code

798

decreased by-0.37%

Dependency changes

• Updated@chainsafe/ssz@^0.6.4