1.1 --- a/rt/vm/src/main/java/org/apidesign/vm4brwsr/StackMapper.java	Mon Feb 17 12:08:31 2014 +0100
     1.2 +++ b/rt/vm/src/main/java/org/apidesign/vm4brwsr/StackMapper.java	Wed May 07 10:01:54 2014 +0200
     1.3 @@ -23,6 +23,7 @@
     1.4  final class StackMapper {
     1.5      private final TypeArray stackTypeIndexPairs;
     1.6      private final StringArray stackValues;
     1.7 +    private boolean dirty;
     1.8  
     1.9      public StackMapper() {
    1.10          stackTypeIndexPairs = new TypeArray();
    1.11 @@ -32,6 +33,7 @@
    1.12      public void clear() {
    1.13          stackTypeIndexPairs.clear();
    1.14          stackValues.clear();
    1.15 +        dirty = false;
    1.16      }
    1.17  
    1.18      public void syncWithFrameStack(final TypeArray frameStack) {
    1.19 @@ -70,7 +72,7 @@
    1.20      void assign(Appendable out, int varType, CharSequence s) throws IOException {
    1.21          pushTypeAndValue(varType, s);
    1.22      }
    1.23 -
    1.24 +    
    1.25      void replace(Appendable out, int varType, String format, CharSequence... arr) 
    1.26      throws IOException {
    1.27          StringBuilder sb = new StringBuilder();
    1.28 @@ -78,6 +80,7 @@
    1.29          String[] values = stackValues.toArray();
    1.30          final int last = stackTypeIndexPairs.getSize() - 1;
    1.31          values[last] = sb.toString();
    1.32 +        dirty = true;
    1.33          final int value = (last << 8) | (varType & 0xff);
    1.34          stackTypeIndexPairs.set(last, value);
    1.35      }
    1.36 @@ -92,6 +95,11 @@
    1.37              CharSequence var = getVariable(stackTypeIndexPairs.get(i));
    1.38              ByteCodeToJavaScript.emitImpl(out, "var @1 = @2;", var, val);
    1.39          }
    1.40 +        dirty = false;
    1.41 +    }
    1.42 +    
    1.43 +    public boolean isDirty() {
    1.44 +        return dirty;
    1.45      }
    1.46      
    1.47      public CharSequence popI() {
    1.48 @@ -216,6 +224,7 @@
    1.49          } else {
    1.50              stackValues.add(val);
    1.51          }
    1.52 +        dirty = true;
    1.53      }
    1.54  
    1.55      private void popImpl(final int count) {