# HG changeset patch
# User Jaroslav Tulach <jaroslav.tulach@apidesign.org>
# Date 1358169649 -3600
# Node ID 5b3d5ed03014aa5455bfec576d815b7c972d43b9
# Parent  9e4f01dd6acb75e64a9295a4fdb4c6e2e48ccd2a
Fill object arrays with null, otherwise use 0

diff -r 9e4f01dd6acb -r 5b3d5ed03014 emul/src/main/resources/org/apidesign/vm4brwsr/emul/java_lang_String.js
--- a/emul/src/main/resources/org/apidesign/vm4brwsr/emul/java_lang_String.js	Mon Jan 14 13:21:40 2013 +0100
+++ b/emul/src/main/resources/org/apidesign/vm4brwsr/emul/java_lang_String.js	Mon Jan 14 14:20:49 2013 +0100
@@ -2,8 +2,8 @@
 vm.java_lang_String(false);
 
 // we need initialized arrays
-Array.prototype.fillNulls = function() {
-  for(var i = 0; i < this.length; i++) this[i] = null;
+Array.prototype.fillWith = function(value) {
+  for(var i = 0; i < this.length; i++) this[i] = value;
   return this;
 };
 Array.prototype.clone__Ljava_lang_Object_2 = function() {
diff -r 9e4f01dd6acb -r 5b3d5ed03014 vm/src/main/java/org/apidesign/vm4brwsr/ByteCodeToJavaScript.java
--- a/vm/src/main/java/org/apidesign/vm4brwsr/ByteCodeToJavaScript.java	Mon Jan 14 13:21:40 2013 +0100
+++ b/vm/src/main/java/org/apidesign/vm4brwsr/ByteCodeToJavaScript.java	Mon Jan 14 14:20:49 2013 +0100
@@ -910,19 +910,19 @@
                 }
                 case opc_newarray:
                     ++i; // skip type of array
-                    emit(out, "@2 = new Array(@1).fillNulls();",
+                    emit(out, "@2 = new Array(@1).fillWith(0);",
                          smapper.popI(), smapper.pushA());
                     break;
                 case opc_anewarray:
                     i += 2; // skip type of array
-                    emit(out, "@2 = new Array(@1).fillNulls();",
+                    emit(out, "@2 = new Array(@1).fillWith(null);",
                          smapper.popI(), smapper.pushA());
                     break;
                 case opc_multianewarray: {
                     i += 2;
                     int dim = readByte(byteCodes, ++i);
                     out.append("{ var a0 = new Array(").append(smapper.popI())
-                       .append(").fillNulls();");
+                       .append(").fillWith(null);");
                     for (int d = 1; d < dim; d++) {
                         out.append("\n  var l" + d).append(" = ")
                            .append(smapper.popI()).append(';');
@@ -930,7 +930,7 @@
                             append(" < a" + (d - 1)).
                             append(".length; i" + d).append("++) {");
                         out.append("\n    var a" + d).
-                            append (" = new Array(l" + d).append(").fillNulls();");
+                            append (" = new Array(l" + d).append(").fillWith(null);");
                         out.append("\n    a" + (d - 1)).append("[i" + d).append("] = a" + d).
                             append(";");
                     }
diff -r 9e4f01dd6acb -r 5b3d5ed03014 vm/src/test/java/org/apidesign/vm4brwsr/Array.java
--- a/vm/src/test/java/org/apidesign/vm4brwsr/Array.java	Mon Jan 14 13:21:40 2013 +0100
+++ b/vm/src/test/java/org/apidesign/vm4brwsr/Array.java	Mon Jan 14 14:20:49 2013 +0100
@@ -98,6 +98,11 @@
         return sum;
     }
     
+    public static int sum(int size) {
+        int[] arr = new int[size];
+        return arr[0] + arr[1];
+    }
+    
     static void arraycopy(char[] value, int srcBegin, char[] dst, int dstBegin, int count) {
         while (count-- > 0) {
             dst[dstBegin++] = value[srcBegin++];
diff -r 9e4f01dd6acb -r 5b3d5ed03014 vm/src/test/java/org/apidesign/vm4brwsr/ArrayTest.java
--- a/vm/src/test/java/org/apidesign/vm4brwsr/ArrayTest.java	Mon Jan 14 13:21:40 2013 +0100
+++ b/vm/src/test/java/org/apidesign/vm4brwsr/ArrayTest.java	Mon Jan 14 14:20:49 2013 +0100
@@ -27,6 +27,11 @@
  * @author Jaroslav Tulach <jtulach@netbeans.org>
  */
 public class ArrayTest {
+    @Test public void intArrayShouldBeFilledWithZeroes() throws Exception {
+            assertExec("0 + 0", Array.class, "sum__II", 
+            Double.valueOf(0), 2
+        );
+    }
     @Test public void verifySimpleIntOperation() throws Exception {
             assertExec("CheckTheSum", Array.class, "simple__IZ", 
             Double.valueOf(15), false