java version restriction has been lifted

benchmarks/fib.srns

@@ -1,3 +1,23 @@
+(def reduce
+     (fn (f xs initial-value)
+         (cond
+          ((first xs) (reduce f (rest xs) (f initial-value (first xs))))
+          (true initial-value))))
+
+(def map
+     (fn (f xs)
+         (reduce (fn (acc x) (cons acc (f x))) xs (list))))
+
+(def range-list
+     (fn (x y init)
+         (if (< y x)
+             (do
+                 (conj (range-list x (+ y 1) init) y))
+             init)))
+(def range
+     (fn (x)
+         (range-list x 0 (list))))
+
 (def fib
   (fn (n)
     (if (< n 2)
@@ -5,4 +25,20 @@
         (+ (fib (- n 1))
            (fib (- n 2))))))
 
-(println (fib 10))
+
+(def benchmark-fn
+     (fn (x)
+         (let ((start (now)))
+           (fib x)
+           (- (now) start))))
+
+
+(def run-benchmark
+     (fn (times)
+         (map (fn (x)
+                  (println "Benchmark: " x)
+                  (println "Took: " (benchmark-fn 30)))
+              (range times))))
+
+
+(run-benchmark 20)

src/main/java/serene/simple/Main.java

@@ -50,13 +50,7 @@ public class Main {
     "to redistribute it under certain conditions; \n" +
     "for details take a look at the LICENSE file.\n";
 
-  private static void isJava8() throws RuntimeException {
-    if (System.getProperty("java.vm.specification.version").equals("1.8"))
-      throw new RuntimeException("Minimume required version of JDK is 1.8");
-  }
-
   public static void main(String[] args) throws IOException, RuntimeException {
-    Main.isJava8();
 
     if (args.length == 0) {
       startRepl();
@@ -75,7 +69,6 @@ public class Main {
 
     while(true) {
       String inputData = console.readLine("serene-> ");
-      //String inputData = "(fn (x) x)";
 
       if (inputData == null) break;