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jsx

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a faster, safer, easier JavaScript

jsx.github.io

jsx/JSX

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JSX HACKING GUIDE ================================================= Bootstrap ================================================= JSX compiler is self-hosted. `tool/bootstrap-compiler.js` is the bootstrap compiler, which is a version of pre-compiled JSX compiler. To update the bootstrap compiler, type `make bootstrap-compiler`. JSX compilation server ================================================= JSX has a compilation server, or persistent compilation daemon, to accelerate compilation. * bin/jsx - a wrapper script which runs compilation server automatically and requests compilation to the server * bin/jsx-compiler.js - the entity of JSX compiler Testing JSX compiler ================================================= `t/util/test-runner` dispatches test according to the test directory. * `t/run/*.jsx` are JSX language specification to test how JSX works * `t/compile_error/*.jsx` are also specification to test what should be errors * `t/complete/*.jsx` tests `--mode complete` * `t/web/*.jsx` are web stuff tested with `phantomjs` * `t/lib/*.jsx` and `t/src/*.jsx` are libraries and JSX sources tested with `test-case.jsx` Profiling JSX compiler with V8Profiler ================================================= NodeJS can profile applications with V8Profiler. * [V8Profiler](http://code.google.com/p/v8/wiki/V8Profiler) * [node-tick-profiler](https://github.com/sidorares/node-tick) Profiling ------------------------------------------------- 1. Run JSX compiler with `node --prof` e.g. `node --prof bin/jsx-compiler.js example/hello.jsx > /dev/null` 2. Parse v8.log with node-tick-processor e.g. `node-tick-processor > prof.txt` 3. Look into the result.