Nashorn support (Java 8)

Java 8 includes a new javascript engine, Nashorn that provides a massive performance improvement over Rhino. Nashorn’s Java interop is sufficiently different from Rhino that the existing Rhino versions don’t work in Nashorn, even in Nashorn’s Rhino interop mode.

It would be good to have a separate build similar to less-rhino, e.g. less-nashorn that provides the bindings required with work in the nashorn engine. This would support lessc integration into Java-based build tools.

[artfiedler]

I don’t know about the browserify workarounds etc mentioned here… but I put together a nashorn implementation. At this moment here are the stats… running this on windows 10, jdk1.8.0_102… I didn’t test on Linux yet but it should be working. Is there still interest in this?

c:…\less.js-2.7.1\bin>jjs lessjjsc – …\benchmark\benchmark.less Finished: 6185.745009ms I don’t have node installed so I don’t know how fast this runs on node, can someone post some timings? I’m measuring from just before less.render and first line in .then()

c:…\less.js-2.7.1\test\nashorn>jjs index.js – 13 Failed, 147 passed I believe some of the failed tests actually pass just the output doesn’t match, and a few minor tweaks might make a few more tests run successfully. Right now I know svg image size and source maps aren’t implemented so those tests fail

(I have not posted code or made a pull request yet, FYI)

[stale[bot]]

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