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@foxglove/cdr

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@foxglove/cdr - npm Package Compare versions

Comparing version 1.1.1 to 1.2.0

4

dist/CdrReader.d.ts
import { EncapsulationKind } from "./encapsulationKind";
export declare class CdrReader {
private array;
private view;

@@ -10,5 +9,4 @@ private littleEndian;

get kind(): EncapsulationKind;
get data(): Uint8Array;
get decodedBytes(): number;
constructor(data: Uint8Array);
constructor(data: ArrayBufferView);
int8(): number;

@@ -15,0 +13,0 @@ uint8(): number;

22

dist/CdrReader.js

@@ -9,7 +9,6 @@ "use strict";

this.textDecoder = new TextDecoder("utf8");
this.hostLittleEndian = !isBigEndian_1.isBigEndian();
this.hostLittleEndian = !(0, isBigEndian_1.isBigEndian)();
if (data.byteLength < 4) {
throw new Error(`Invalid CDR data size ${data.byteLength}, must contain at least a 4-byte header`);
}
this.array = data;
this.view = new DataView(data.buffer, data.byteOffset, data.byteLength);

@@ -21,7 +20,4 @@ const kind = this.kind;

get kind() {
return this.array[1];
return this.view.getUint8(1);
}
get data() {
return this.array;
}
get decodedBytes() {

@@ -112,3 +108,3 @@ return this.offset;

}
const data = new Uint8Array(this.array.buffer, this.array.byteOffset + this.offset, length - 1);
const data = new Uint8Array(this.view.buffer, this.view.byteOffset + this.offset, length - 1);
const value = this.textDecoder.decode(data);

@@ -122,3 +118,3 @@ this.offset += length;

int8Array(count = this.sequenceLength()) {
const array = new Int8Array(this.data.buffer, this.data.byteOffset + this.offset, count);
const array = new Int8Array(this.view.buffer, this.view.byteOffset + this.offset, count);
this.offset += count;

@@ -128,3 +124,3 @@ return array;

uint8Array(count = this.sequenceLength()) {
const array = new Uint8Array(this.data.buffer, this.data.byteOffset + this.offset, count);
const array = new Uint8Array(this.view.buffer, this.view.byteOffset + this.offset, count);
this.offset += count;

@@ -171,3 +167,3 @@ return array;

const newOffset = this.offset + relativeOffset;
if (newOffset < 4 || newOffset >= this.data.byteLength) {
if (newOffset < 4 || newOffset >= this.view.byteLength) {
throw new Error(`seek(${relativeOffset}) failed, ${newOffset} is outside the data range`);

@@ -183,3 +179,3 @@ }

seekTo(offset) {
if (offset < 4 || offset >= this.data.byteLength) {
if (offset < 4 || offset >= this.view.byteLength) {
throw new Error(`seekTo(${offset}) failed, value is outside the data range`);

@@ -201,3 +197,3 @@ }

this.align(TypedArrayConstructor.BYTES_PER_ELEMENT);
const totalOffset = this.data.byteOffset + this.offset;
const totalOffset = this.view.byteOffset + this.offset;
if (this.littleEndian !== this.hostLittleEndian) {

@@ -209,3 +205,3 @@ // Slowest path

// Fastest path
const array = new TypedArrayConstructor(this.data.buffer, totalOffset, count);
const array = new TypedArrayConstructor(this.view.buffer, totalOffset, count);
this.offset += TypedArrayConstructor.BYTES_PER_ELEMENT * count;

@@ -212,0 +208,0 @@ return array;

5

dist/CdrReader.test.js

@@ -85,3 +85,3 @@ "use strict";

["uint32Array", "uint32", [0, 4294967295, 3]],
])("reads %s", (getter, setter, expected) => {
])("reads int %s", (getter, setter, expected) => {
const writer = new CdrWriter_1.CdrWriter();

@@ -97,3 +97,3 @@ writeArray(writer, setter, expected);

["float64Array", "float64", [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, -0.123456789121212121212], 15],
])("reads %s", (getter, setter, expected, numDigits) => {
])("reads float %s", (getter, setter, expected, numDigits) => {
const writer = new CdrWriter_1.CdrWriter();

@@ -121,2 +121,3 @@ writeArray(writer, setter, expected);

const reader = new CdrReader_1.CdrReader(writer.data);
expect(reader).toBeDefined();
expectToBeCloseToArray(Array.from(reader.float32Array().values()), [5.5, 6.5], 6);

@@ -123,0 +124,0 @@ expectToBeCloseToArray(Array.from(reader.float32Array().values()), [7.5, 8.5], 6);

2

dist/CdrWriter.js

@@ -20,3 +20,3 @@ "use strict";

this.littleEndian = kind === encapsulationKind_1.EncapsulationKind.CDR_LE || kind === encapsulationKind_1.EncapsulationKind.PL_CDR_LE;
this.hostLittleEndian = !isBigEndian_1.isBigEndian();
this.hostLittleEndian = !(0, isBigEndian_1.isBigEndian)();
this.array = new Uint8Array(this.buffer);

@@ -23,0 +23,0 @@ this.view = new DataView(this.buffer);

6

dist/CdrWriter.test.js

@@ -31,3 +31,3 @@ "use strict";

describe("CdrWriter", () => {
it("serializes an example message with size calculation", () => {
it("serializes an example message with internal preallocation", () => {
// Example tf2_msgs/TFMessage

@@ -39,3 +39,3 @@ const writer = new CdrWriter_1.CdrWriter({ size: 100 });

});
it("serializes an example message with preallocation", () => {
it("serializes an example message with external preallocation", () => {
// Example tf2_msgs/TFMessage

@@ -47,3 +47,3 @@ const writer = new CdrWriter_1.CdrWriter({ buffer: new ArrayBuffer(100) });

});
it("serializes an example message with size calculation", () => {
it("serializes an example message with no preallocation", () => {
// Example tf2_msgs/TFMessage

@@ -50,0 +50,0 @@ const writer = new CdrWriter_1.CdrWriter();

37

package.json
{
"name": "@foxglove/cdr",
"version": "1.1.1",
"version": "1.2.0",
"description": "Common Data Representation serialization and deserialization library",

@@ -32,3 +32,4 @@ "license": "MIT",

"scripts": {
"build": "tsc -b",
"build": "yarn clean && tsc -b",
"clean": "rimraf dist *.tsbuildinfo",
"lint:ci": "eslint --report-unused-disable-directives .",

@@ -44,21 +45,19 @@ "lint": "eslint --report-unused-disable-directives --fix .",

"devDependencies": {
"@foxglove/eslint-plugin": "0.13.0",
"@types/eslint": "^7",
"@types/eslint-plugin-prettier": "^3",
"@types/jest": "26.0.24",
"@types/prettier": "2.3.2",
"@typescript-eslint/eslint-plugin": "4.28.4",
"@typescript-eslint/parser": "4.28.4",
"esbuild": "0.12.15",
"esbuild-jest": "0.5.0",
"eslint": "7.31.0",
"@foxglove/eslint-plugin": "0.17.0",
"@types/jest": "27.0.1",
"@typescript-eslint/eslint-plugin": "4.31.1",
"@typescript-eslint/parser": "4.31.1",
"eslint": "7.32.0",
"eslint-config-prettier": "8.3.0",
"eslint-plugin-filenames": "^1.3.2",
"eslint-plugin-import": "2.23.4",
"eslint-plugin-jest": "24.3.6",
"eslint-plugin-prettier": "3.4.0",
"jest": "27.0.6",
"prettier": "2.3.2",
"typescript": "4.3.5"
"eslint-plugin-es": "4.1.0",
"eslint-plugin-filenames": "1.3.2",
"eslint-plugin-import": "2.24.2",
"eslint-plugin-jest": "24.4.0",
"eslint-plugin-prettier": "4.0.0",
"jest": "27.2.0",
"prettier": "2.4.0",
"rimraf": "3.0.2",
"ts-jest": "27.0.5",
"typescript": "4.4.3"
}
}

2

README.md

@@ -5,2 +5,4 @@ # @foxglove/cdr

[![npm version](https://img.shields.io/npm/v/@foxglove/cdr.svg?style=flat)](https://www.npmjs.com/package/@foxglove/cdr)
## Introduction

@@ -7,0 +9,0 @@

5

src/CdrReader.test.ts

@@ -117,3 +117,3 @@ import { CdrReader } from "./CdrReader";

["uint32Array", "uint32", [0, 4294967295, 3]],
])("reads %s", (getter: string, setter: string, expected: number[]) => {
])("reads int %s", (getter: string, setter: string, expected: number[]) => {
const writer = new CdrWriter();

@@ -131,3 +131,3 @@ writeArray(writer, setter as Setter, expected);

["float64Array", "float64", [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, -0.123456789121212121212], 15],
])("reads %s", (getter: string, setter: string, expected: number[], numDigits: number) => {
])("reads float %s", (getter: string, setter: string, expected: number[], numDigits: number) => {
const writer = new CdrWriter();

@@ -160,2 +160,3 @@ writeArray(writer, setter as Setter, expected);

const reader = new CdrReader(writer.data);
expect(reader).toBeDefined();
expectToBeCloseToArray(Array.from(reader.float32Array().values()), [5.5, 6.5], 6);

@@ -162,0 +163,0 @@ expectToBeCloseToArray(Array.from(reader.float32Array().values()), [7.5, 8.5], 6);

24

src/CdrReader.ts

@@ -27,3 +27,2 @@ import { EncapsulationKind } from "./encapsulationKind";

export class CdrReader {
private array: Uint8Array;
private view: DataView;

@@ -37,9 +36,5 @@ private littleEndian: boolean;

get kind(): EncapsulationKind {
return this.array[1] as EncapsulationKind;
return this.view.getUint8(1) as EncapsulationKind;
}
get data(): Uint8Array {
return this.array;
}
get decodedBytes(): number {

@@ -49,3 +44,3 @@ return this.offset;

constructor(data: Uint8Array) {
constructor(data: ArrayBufferView) {
this.hostLittleEndian = !isBigEndian();

@@ -58,3 +53,2 @@

}
this.array = data;
this.view = new DataView(data.buffer, data.byteOffset, data.byteLength);

@@ -161,3 +155,3 @@ const kind = this.kind;

}
const data = new Uint8Array(this.array.buffer, this.array.byteOffset + this.offset, length - 1);
const data = new Uint8Array(this.view.buffer, this.view.byteOffset + this.offset, length - 1);
const value = this.textDecoder.decode(data);

@@ -173,3 +167,3 @@ this.offset += length;

int8Array(count: number = this.sequenceLength()): Int8Array {
const array = new Int8Array(this.data.buffer, this.data.byteOffset + this.offset, count);
const array = new Int8Array(this.view.buffer, this.view.byteOffset + this.offset, count);
this.offset += count;

@@ -180,3 +174,3 @@ return array;

uint8Array(count: number = this.sequenceLength()): Uint8Array {
const array = new Uint8Array(this.data.buffer, this.data.byteOffset + this.offset, count);
const array = new Uint8Array(this.view.buffer, this.view.byteOffset + this.offset, count);
this.offset += count;

@@ -233,3 +227,3 @@ return array;

const newOffset = this.offset + relativeOffset;
if (newOffset < 4 || newOffset >= this.data.byteLength) {
if (newOffset < 4 || newOffset >= this.view.byteLength) {
throw new Error(`seek(${relativeOffset}) failed, ${newOffset} is outside the data range`);

@@ -246,3 +240,3 @@ }

seekTo(offset: number): void {
if (offset < 4 || offset >= this.data.byteLength) {
if (offset < 4 || offset >= this.view.byteLength) {
throw new Error(`seekTo(${offset}) failed, value is outside the data range`);

@@ -270,3 +264,3 @@ }

this.align(TypedArrayConstructor.BYTES_PER_ELEMENT);
const totalOffset = this.data.byteOffset + this.offset;
const totalOffset = this.view.byteOffset + this.offset;
if (this.littleEndian !== this.hostLittleEndian) {

@@ -277,3 +271,3 @@ // Slowest path

// Fastest path
const array = new TypedArrayConstructor(this.data.buffer, totalOffset, count);
const array = new TypedArrayConstructor(this.view.buffer, totalOffset, count);
this.offset += TypedArrayConstructor.BYTES_PER_ELEMENT * count;

@@ -280,0 +274,0 @@ return array;

6

src/CdrWriter.test.ts

@@ -34,3 +34,3 @@ import { CdrReader } from "./CdrReader";

describe("CdrWriter", () => {
it("serializes an example message with size calculation", () => {
it("serializes an example message with internal preallocation", () => {
// Example tf2_msgs/TFMessage

@@ -43,3 +43,3 @@ const writer = new CdrWriter({ size: 100 });

it("serializes an example message with preallocation", () => {
it("serializes an example message with external preallocation", () => {
// Example tf2_msgs/TFMessage

@@ -52,3 +52,3 @@ const writer = new CdrWriter({ buffer: new ArrayBuffer(100) });

it("serializes an example message with size calculation", () => {
it("serializes an example message with no preallocation", () => {
// Example tf2_msgs/TFMessage

@@ -55,0 +55,0 @@ const writer = new CdrWriter();

dist/CdrReader.d.ts.map

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dist/CdrReader.js.map

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dist/CdrReader.test.js.map

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dist/CdrWriter.js.map

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dist/CdrWriter.test.js.map

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LICENSE

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