Dec 9, 2015 10:11 AM PT
It will be available next month on GitHub under the MIT license.
Microsoft will work with Intel, AMD and NodeSource to develop the ChakraCore community.
"Like other core infrastructure open source software products, Chakra has the potential to turn the standards world on its head, putting de facto implementation ahead of de jure standardization," he told LinuxInsider.
"Releasing Chakra as open source paves the way for adoption by other software products and projects across the ecosystem, from the cloud to desktop to IoT," Weinberg said.
More About Chakra
Chakra powers Universal Windows applications across all form factors supporting Windows 10.
It's optimized for TypeScript, and Node.js runs with it.
Chakra supports most of the ECMAScript 2015 features, and it supports some future ECMAScript proposals, such as Async Functions. It supports asm.js and is a key player in helping evolve WebAssembly and its associated infrastructure, Microsoft said.
Unlike Chakra in Microsoft Edge, ChakraCore doesn't expose Chakra's private bindings to the browser or the Universal Windows Platform. Further, ChakraCore will support a new set of modern diagnostic APIs, which will be platform-agnostic and could be standardized or made interoperable across different implementations.
The initial release of ChakraCore will be for Windows only, but Microsoft will bring it to other platforms.
"Developers should find advantages in using this toolset" because "it's focused on developers, and Microsoft makes a decent set of tools," remarked Rob Enderle, principal analyst at the Enderle Group.
There's little risk to Microsoft in going this route, and, at worst, its tool would be trivialized, he told LinuxInsider.
Why ChakraCore Has the Juice
ChakraCore enables the "ultrapopular" Node.js on both Windows 10 and Windows 10 IoT Core and has a pre-existing end-user and interoperability base from Chakra's proprietary database, LinuxPundit's Weinberg said. It also has strong benchmarking performance from day one of its open source release and has early, selective implementation of ECMAScript 2015 capabilities.
ECMA standards have been a battleground, with Adobe, Mozilla, Opera and Google primarily developing ECMAScript 4 specs. Microsoft and Yahoo led another working group to implement some changes and bug fixes in ECMAScript 3 while retaining it as a subset of ECMAScript 4.
Nobody was happy with the result, and ECMAScript 4 was abandoned. Work then began on ECMAScript 5, dubbed "Harmony."