Added simpletools script updated the example.

Author: boris-spas

example.js

@@ -0,0 +1,69 @@
+var N = 2000;
+var EXPECTED = 17393;
+
+function Natural() {
+    x = 2;
+    return {
+        'next' : function() { return x++; }
+    };
+}
+
+function Filter(number, filter) {
+    var self = this;
+    this.number = number;
+    this.filter = filter;
+    this.accept = function(n) {
+      var filter = self;
+      for (;;) {
+          if (n % filter.number === 0) {
+              return false;
+          }
+          filter = filter.filter;
+          if (filter === null) {
+              break;
+          }
+      }
+      return true;
+    };
+    return this;
+}
+
+function Primes(natural) {
+    var self = this;
+    this.natural = natural;
+    this.filter = null;
+    this.next = function() {
+        for (;;) {
+            var n = self.natural.next();
+            if (self.filter === null || self.filter.accept(n)) {
+                self.filter = new Filter(n, self.filter);
+                return n;
+            }
+        }
+    };
+}
+
+var holdsAFunctionThatIsNeverCalled = function(natural) {
+    var self = this;
+    this.natural = natural;
+    this.filter = null;
+    this.next = function() {
+        for (;;) {
+            var n = self.natural.next();
+            if (self.filter === null || self.filter.accept(n)) {
+                self.filter = new Filter(n, self.filter);
+                return n;
+            }
+        }
+    };
+}
+
+var holdsAFunctionThatIsNeverCalledOneLine = function() {return null;}
+
+function primesMain() {
+    var primes = new Primes(Natural());
+    var primArray = [];
+    for (var i=0;i<=N;i++) { primArray.push(primes.next()); }
+    if (primArray[N] != EXPECTED) { throw new Error('wrong prime found: ' + primArray[N]); }
+}
+primesMain();

runJsWithCoverage.sh

@@ -1,7 +1,2 @@
 #!/bin/bash
-
-$JAVA_HOME/bin/js \
-    --jvm \
-    --vm.Dtruffle.class.path.append=target/simpletool-19.0.2-SNAPSHOT.jar \
-    --simple-code-coverage \
-    src/test/java/com/oracle/simpletool/test/test.js
+./simpletool js example.js

simpletool

@@ -0,0 +1,20 @@
+#!/bin/bash
+
+function printUsage() {
+    echo "Usage:"
+    echo "$0 <GraalVM launcher> <launcher args>"
+    echo "Example:"
+    echo "$0 js example.js"
+    exit 0
+}
+
+[ -z $1 ] || [ $1 == "--help" ] || [ $1 == "-help" ] && printUsage
+
+LAUNCHER=$1
+shift
+
+"$JAVA_HOME/bin/$LAUNCHER" \
+    --jvm \
+    --vm.Dtruffle.class.path.append=target/simpletool-19.0.2-SNAPSHOT.jar \
+    --simple-code-coverage \
+    $@