# HG changeset patch
# User Jaroslav Tulach <jaroslav.tulach@apidesign.org>
# Date 1353272324 -3600
# Node ID 51d08c49e9b6f620056d59b1f0909a2f69757da0
# Parent  391a5d25c0e1e052303d3b2f480b4eaec2e8716e
ByteCodeToJavaScript can run insided bck2brwsr VM

diff -r 391a5d25c0e1 -r 51d08c49e9b6 emul/src/main/java/java/lang/AbstractStringBuilder.java
--- a/emul/src/main/java/java/lang/AbstractStringBuilder.java	Sun Nov 18 19:54:40 2012 +0100
+++ b/emul/src/main/java/java/lang/AbstractStringBuilder.java	Sun Nov 18 21:58:44 2012 +0100
@@ -1417,7 +1417,7 @@
 
     static void arraycopy(char[] value, int srcBegin, char[] dst, int dstBegin, int count) {
         while (count-- > 0) {
-            dst[dstBegin++] = value[srcBegin++];
+            dst[dstBegin + count] = value[srcBegin + count];
         }
     }
 
diff -r 391a5d25c0e1 -r 51d08c49e9b6 vm/src/test/java/org/apidesign/vm4brwsr/StringSample.java
--- a/vm/src/test/java/org/apidesign/vm4brwsr/StringSample.java	Sun Nov 18 19:54:40 2012 +0100
+++ b/vm/src/test/java/org/apidesign/vm4brwsr/StringSample.java	Sun Nov 18 21:58:44 2012 +0100
@@ -60,6 +60,13 @@
         return s.replace(a, b);
     }
     
+    public static String insertBuffer() {
+        StringBuilder sb = new StringBuilder();
+        sb.append("Jardo!");
+        sb.insert(0, "Ahoj ");
+        return sb.toString().toString();
+    }
+    
     public static int countAB(String txt) {
         int cnt = 0;
         for (int i = 0; i < txt.length(); i++) {
diff -r 391a5d25c0e1 -r 51d08c49e9b6 vm/src/test/java/org/apidesign/vm4brwsr/StringTest.java
--- a/vm/src/test/java/org/apidesign/vm4brwsr/StringTest.java	Sun Nov 18 19:54:40 2012 +0100
+++ b/vm/src/test/java/org/apidesign/vm4brwsr/StringTest.java	Sun Nov 18 21:58:44 2012 +0100
@@ -108,6 +108,14 @@
             "x_y_z", "x/y/z", (int)'/', (int)'_'
         );
     }
+
+    @Test public void insertBuilder() throws Exception {
+        assertExec(
+            "Can insert something into a buffer?",
+            "org_apidesign_vm4brwsr_StringSample_insertBufferLjava_lang_String",
+            "Ahoj Jardo!"
+        );
+    }
     
     @Test public void countAB() throws Exception {
         assertEquals(StringSample.countAB("Ahoj Bedo!"), 3, "Verify Java code is sane");