bit-buffer - npm Package Compare versions

Comparing version 0.1.0 to 0.2.0

bit-buffer.d.ts

@@ -35,3 +35,3 @@ declare module 'bit-buffer' {
 
-		writeBoolean(value: number);
+		writeBoolean(value: boolean);
 
@@ -65,3 +65,7 @@ writeInt8(value: number);
 		readArrayBuffer(byteLength: number): Uint8Array;
+
+		writeBitStream(stream: BitStream, length?: number);
+
+		writeArrayBuffer(buffer: BitStream, length?: number);
 	}
 }

bit-buffer.js

@@ -418,2 +418,16 @@ (function (root) {
 };
+
+BitStream.prototype.writeBitStream = function(stream, length) {
+	if (!length) {
+		length = stream.bitsLeft;
+	}
+
+	var bitsToWrite;
+	while (length > 0) {
+		bitsToWrite = Math.min(length, 32);
+		this.writeBits(stream.readBits(bitsToWrite), bitsToWrite);
+		length -= bitsToWrite;
+	}
+};
+
 BitStream.prototype.readArrayBuffer = function(byteLength) {
@@ -425,2 +439,6 @@ var buffer = this._view.getArrayBuffer(this._index, byteLength);
 
+BitStream.prototype.writeArrayBuffer = function(buffer, byteLength) {
+	this.writeBitStream(new BitStream(buffer), byteLength * 8);
+};
+
 // AMD / RequireJS
@@ -427,0 +445,0 @@ if (typeof define !== 'undefined' && define.amd) {

package.json

 {
   "name": "bit-buffer",
-  "version": "0.1.0",
+  "version": "0.2.0",
   "description": "Bit-level reads and writes for ArrayBuffers",
@@ -5,0 +5,0 @@ "main": "bit-buffer.js",

test.js

@@ -297,2 +297,34 @@ var assert = require('assert'),
 
+	test('writeBitStream', function () {
+		var sourceStream = new BitStream(new ArrayBuffer(64));
+
+		sourceStream.writeBits(0xF0, 8); //0b11110000
+		sourceStream.writeBits(0xF1, 8); //0b11110001
+		sourceStream.index = 0;
+		sourceStream.readBits(3); //offset
+		bsr.writeBitStream(sourceStream, 8);
+		assert.equal(8, bsr.index);
+		bsr.index = 0;
+		assert.equal(bsr.readBits(6), 0x3E); //0b00111110
+		assert.equal(11, sourceStream.index);
+	});
+
+	test('writeBitStream long', function () {
+		var sourceStream = new BitStream(new ArrayBuffer(64));
+
+		sourceStream.writeBits(0xF0, 8);
+		sourceStream.writeBits(0xF1, 8);
+		sourceStream.writeBits(0xF1, 8);
+		sourceStream.writeBits(0xF1, 8);
+		sourceStream.writeBits(0xF1, 8);
+		sourceStream.index = 0;
+		sourceStream.readBits(3); //offset
+		bsr.index = 3;
+		bsr.writeBitStream(sourceStream, 35);
+		assert.equal(38, bsr.index);
+		bsr.index = 3;
+		assert.equal(bsr.readBits(35), 1044266558);
+		assert.equal(38, sourceStream.index);
+	});
+
 	test('readArrayBuffer', function () {
@@ -312,2 +344,17 @@ bsw.writeBits(0xF0, 8); //0b11110000
 
+	test('writeArrayBuffer', function () {
+		var source = new Uint8Array(4);
+		source[0]=0xF0;
+		source[1]=0xF1;
+		source[2]=0xF1;
+		bsr.readBits(3); //offset
+
+		bsr.writeArrayBuffer(source.buffer, 2);
+		assert.equal(19, bsr.index);
+
+		bsr.index = 0;
+
+		assert.equal(bsr.readBits(8), 128);
+	});
+
 	test('Get buffer from view', function() {
@@ -314,0 +361,0 @@ bv.setBits(0, 0xFFFFFFFF, 32);

Fixed alerts

New author

Supply chain risk

A new npm collaborator published a version of the package for the first time. New collaborators are usually benign additions to a project, but do indicate a change to the security surface area of a package.

Found 1 instance in 1 package

Improved metrics

Total package byte prevSize

80962

2.34%

Lines of code

718

8.3%

Number of medium supply chain risk alerts

0

-100%

No dependency changes