static void rhino(String parser, String code) { String source = "speedtest"; int line = 1; Context context = Context.enter(); context.setOptimizationLevel(9); try { Scriptable scope = context.initStandardObjects(); context.evaluateString(scope, parser, source, line, null); ScriptableObject.putProperty(scope, "$code", Context.javaToJS(code, scope)); Object tree = new Object(); Object tokens = new Object(); for (int i = 0; i < RUNS; ++i) { long start = System.nanoTime(); tree = context.evaluateString(scope, "esprima.parse($code)", source, line, null); tokens = context.evaluateString(scope, "esprima.tokenize($code)", source, line, null); long stop = System.nanoTime(); System.out.println("Run #" + (i + 1) + ": " + Math.round((stop - start) / 1e6) + " ms"); } } finally { Context.exit(); System.gc(); } } static void nashorn(String parser, String code) throws ScriptException,NoSuchMethodException { ScriptEngineManager factory = new ScriptEngineManager(); ScriptEngine engine = factory.getEngineByName("nashorn"); engine.eval(parser); Invocable inv = (Invocable) engine; Object esprima = engine.get("esprima"); Object tree = new Object(); Object tokens = new Object(); for (int i = 0; i < RUNS; ++i) { long start = System.nanoTime(); tree = inv.invokeMethod(esprima, "parse", code); tokens = inv.invokeMethod(esprima, "tokenize", code); long stop = System.nanoTime(); System.out.println("Run #" + (i + 1) + ": " + Math.round((stop - start) / 1e6) + " ms"); } // System.out.println("Data is " + tokens.toString() + " and " + tree.toString()); } |