varintes - npm Package Compare versions

Comparing version 2.0.1 to 2.0.2

dist/decode.js

		@@ -0,15 +1,4 @@
		import { N4, N5, N6, N7 } from "./encoding-length.js";
		const MSB = 0x80; // 1000 0000
		const REST = 0x7f; // 0111 1111
		const SHIFTS = {
		0: Math.pow(2, 0),
		7: Math.pow(2, 7),
		14: Math.pow(2, 14),
		21: Math.pow(2, 21),
		28: Math.pow(2, 28),
		35: Math.pow(2, 35),
		42: Math.pow(2, 42),
		49: Math.pow(2, 49),
		56: Math.pow(2, 56),
		63: Math.pow(2, 63),
		};
		/**
		@@ -23,16 +12,43 @@ * Decode varint from input `buffer`. Return a decoded number and an amount of bytes read while decoding.
		export function decode(buffer, offset = 0) {
		let result = 0;
		let bytesRead = offset;
		let byte = 0;
		let shift = 0;
		do {
		byte = buffer[bytesRead++];
		// @ts-ignore
		result += shift < 28 ? (byte & REST) << shift : (byte & REST) * SHIFTS[shift];
		shift += 7;
		} while (byte >= MSB && shift <= 56);
		if (shift > 56 \|\| bytesRead > buffer.length) {
		throw new RangeError("Could not decode varint");
		let byte = buffer[offset];
		let result = byte & REST;
		if (byte < MSB) {
		return [result, 1];
		}
		return [result, bytesRead - offset];
		byte = buffer[offset + 1];
		result += (byte & REST) << 7;
		if (byte < MSB) {
		return [result, 2];
		}
		byte = buffer[offset + 2];
		result += (byte & REST) << 14;
		if (byte < MSB) {
		return [result, 3];
		}
		byte = buffer[offset + 3];
		result += (byte & REST) << 21;
		if (byte < MSB) {
		return [result, 4];
		}
		byte = buffer[offset + 4];
		result += (byte & REST) * N4;
		if (byte < MSB) {
		return [result, 5];
		}
		byte = buffer[offset + 5];
		result += (byte & REST) * N5;
		if (byte < MSB) {
		return [result, 6];
		}
		byte = buffer[offset + 6];
		result += (byte & REST) * N6;
		if (byte < MSB) {
		return [result, 7];
		}
		byte = buffer[offset + 7];
		result += (byte & REST) * N7;
		if (byte < MSB) {
		return [result, 8];
		}
		throw new RangeError("Could not decode varint");
		}

dist/encoding-length.d.ts

		@@ -0,1 +1,10 @@
		export declare const N1: number;
		export declare const N2: number;
		export declare const N3: number;
		export declare const N4: number;
		export declare const N5: number;
		export declare const N6: number;
		export declare const N7: number;
		export declare const N8: number;
		export declare const N9: number;
		/**
		@@ -2,0 +11,0 @@ * Calculate amount of bytes that it takes to represent a `value` as varint, in bytes.

dist/encoding-length.js

		@@ -1,10 +0,10 @@
		const N1 = Math.pow(2, 7);
		const N2 = Math.pow(2, 14);
		const N3 = Math.pow(2, 21);
		const N4 = Math.pow(2, 28);
		const N5 = Math.pow(2, 35);
		const N6 = Math.pow(2, 42);
		const N7 = Math.pow(2, 49);
		const N8 = Math.pow(2, 56);
		const N9 = Math.pow(2, 63);
		export const N1 = Math.pow(2, 7);
		export const N2 = Math.pow(2, 7 * 2);
		export const N3 = Math.pow(2, 7 * 3);
		export const N4 = Math.pow(2, 7 * 4);
		export const N5 = Math.pow(2, 7 * 5);
		export const N6 = Math.pow(2, 7 * 6);
		export const N7 = Math.pow(2, 7 * 7);
		export const N8 = Math.pow(2, 7 * 8);
		export const N9 = Math.pow(2, 7 * 9);
		/**
		@@ -11,0 +11,0 @@ * Calculate amount of bytes that it takes to represent a `value` as varint, in bytes.

package.json

		{
		"name": "varintes",
		"version": "2.0.1",
		"version": "2.0.2",
		"description": "Unsigned Varint encoding and decoding, exposed as ESModule",
		@@ -5,0 +5,0 @@ "keywords": [

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