jsx-assert.md

class _Main {
  static function main(args : string[]) : void {
    var x = 42;
    assert x == 0;
  }
}

$ jsx --run a.jsx 

/path/to/.jsx.a.jsx.58815.145f0a7062c.js:199
		throw new Error("[a.jsx:4:13] assertion failure\n    assert x == 0;\n       
		      ^
Error: [a.jsx:4:13] assertion failure
    assert x == 0;
             ^^