v8worker2

This is a minimal binding between Go (golang) and V8 JavaScript. Basic concept is to only expose two methods to JavaScript: send and receive.

V8 Version: 6.8.275.3 (May 2018)

A rather dated presentation on this project

Installing

Due to the complexity of building V8, this package is not buildable with go get.

To install:

go get github.com/ry/v8worker2
cd `go env GOPATH`/src/github.com/ry/v8worker2
./build.py # Will take ~30 minutes to compile.
go test

If you have ccache installed, ./build.py --use_ccache will take advantage of it. This is useful to avoid rebuilding V8 so much.

JavaScript API

The JavaScript interface is exposed thru a single global namespace V8Worker2. The interface has just three methods V8Worker2.print(), V8Worker2.send(), and V8Worker2.recv(). See v8worker2.d.ts for the details.

Golang API

Documentation is at https://godoc.org/github.com/ry/v8worker2 and example usage is at worker_test.go

Difference from the original v8worker

The original v8worker passed strings between Go and V8. v8worker2 instead communicates using ArrayBuffer, which is more efficient.
The original included recvSync and sendSync methods. These were deemed unnecessary. Now send() can operate both sychronously by returning another ArrayBuffer. Simply return a []byte from the golang recv callback.
This version is compatible with modern V8, has a better build setup, and uses Travis for CI.
The original prefixed the methods with dollar signs, this version uses a global name space object and provides a typescript declaration file.

License

MIT License. Contributions welcome.

	Copyright 2015-2018 Ryan Dahl <ry@tinyclouds.org>. All rights reserved.

	Permission is hereby granted, free of charge, to any person obtaining a copy
	of this software and associated documentation files (the "Software"), to
	deal in the Software without restriction, including without limitation the
	rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
	sell copies of the Software, and to permit persons to whom the Software is
	furnished to do so, subject to the following conditions:

	The above copyright notice and this permission notice shall be included in
	all copies or substantial portions of the Software.

	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
	AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
	LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
	FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
	IN THE SOFTWARE.

jkcfg / v8worker2