New public API Context.getDebuggableView to extract DebuggableScript implementation.

js/rhino/src/org/mozilla/javascript/Context.java

@@ -2123,6 +2123,19 @@ public class Context
         debuggerData = contextData;
     }
 
+    /**
+     * Return DebuggableScript instance if any associated with the script.
+     * If callable supports DebuggableScript implementation, the method
+     * returns it. Otherwise null is returned.
+     */
+    public static DebuggableScript getDebuggableView(Script script)
+    {
+        if (script instanceof NativeFunction) {
+            return ((NativeFunction)script).getDebuggableView();
+        }
+        return null;
+    }
+
     /**
      * Controls certain aspects of script semantics.
      * Should be overwritten to alter default behavior.

js/rhino/src/org/mozilla/javascript/InterpretedFunction.java

@@ -36,6 +36,8 @@
 
 package org.mozilla.javascript;
 
+import org.mozilla.javascript.debug.DebuggableScript;
+
 final class InterpretedFunction extends NativeFunction implements Script
 {
     InterpreterData idata;
@@ -153,5 +155,10 @@ final class InterpretedFunction extends NativeFunction implements Script
     {
         return Interpreter.getEncodedSource(idata);
     }
+
+    public DebuggableScript getDebuggableView()
+    {
+        return idata;
+    }
 }
 

js/rhino/src/org/mozilla/javascript/NativeFunction.java

@@ -38,6 +38,8 @@
 
 package org.mozilla.javascript;
 
+import org.mozilla.javascript.debug.DebuggableScript;
+
 /**
  * This class implements the Function native object.
  * See ECMA 15.3.
@@ -137,6 +139,11 @@ public class NativeFunction extends BaseFunction
         return null;
     }
 
+    public DebuggableScript getDebuggableView()
+    {
+        return null;
+    }
+
     /**
      * The "argsNames" array has the following information:
      * argNames[0] through argNames[argCount - 1]: the names of the parameters