Mercurial > hg > icedtea9-forest > nashorn

changeset 663:144861e24260

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Merge
author sundar
date Mon, 04 Nov 2013 09:29:12 +0530
parents 5ce78473d6c3 (current diff) 98bab0cdd7bf (diff)
children b0d4ef6fb2db
files
diffstat 20 files changed, 416 insertions(+), 42 deletions(-) [+]
line wrap: on
line diff
--- a/src/jdk/nashorn/api/scripting/ScriptObjectMirror.java	Thu Oct 31 12:50:17 2013 +0530
+++ b/src/jdk/nashorn/api/scripting/ScriptObjectMirror.java	Mon Nov 04 09:29:12 2013 +0530
@@ -41,6 +41,7 @@
 import java.util.Set;
 import java.util.concurrent.Callable;
 import javax.script.Bindings;
+import jdk.nashorn.internal.runtime.ConsString;
 import jdk.nashorn.internal.runtime.Context;
 import jdk.nashorn.internal.runtime.GlobalObject;
 import jdk.nashorn.internal.runtime.JSType;
@@ -594,14 +595,20 @@
     }
 
     /**
-     * Make a script object mirror on given object if needed.
+     * Make a script object mirror on given object if needed. Also converts ConsString instances to Strings.
      *
-     * @param obj object to be wrapped
-     * @param homeGlobal global to which this object belongs
-     * @return wrapped object
+     * @param obj object to be wrapped/converted
+     * @param homeGlobal global to which this object belongs. Not used for ConsStrings.
+     * @return wrapped/converted object
      */
     public static Object wrap(final Object obj, final ScriptObject homeGlobal) {
-        return (obj instanceof ScriptObject && homeGlobal != null) ? new ScriptObjectMirror((ScriptObject)obj, homeGlobal) : obj;
+        if(obj instanceof ScriptObject) {
+            return homeGlobal != null ? new ScriptObjectMirror((ScriptObject)obj, homeGlobal) : obj;
+        }
+        if(obj instanceof ConsString) {
+            return obj.toString();
+        }
+        return obj;
     }
 
     /**
--- a/src/jdk/nashorn/internal/codegen/Attr.java	Thu Oct 31 12:50:17 2013 +0530
+++ b/src/jdk/nashorn/internal/codegen/Attr.java	Mon Nov 04 09:29:12 2013 +0530
@@ -271,6 +271,7 @@
                     functionNode.addDeclaredSymbol(symbol);
                     if (varNode.isFunctionDeclaration()) {
                         newType(symbol, FunctionNode.FUNCTION_TYPE);
+                        symbol.setIsFunctionDeclaration();
                     }
                     return varNode.setName((IdentNode)ident.setSymbol(lc, symbol));
                 }
--- a/src/jdk/nashorn/internal/codegen/MapCreator.java	Thu Oct 31 12:50:17 2013 +0530
+++ b/src/jdk/nashorn/internal/codegen/MapCreator.java	Mon Nov 04 09:29:12 2013 +0530
@@ -134,6 +134,10 @@
             flags |= Property.CAN_BE_UNDEFINED;
         }
 
+        if (symbol.isFunctionDeclaration()) {
+            flags |= Property.IS_FUNCTION_DECLARATION;
+        }
+
         return flags;
     }
 
--- a/src/jdk/nashorn/internal/ir/Symbol.java	Thu Oct 31 12:50:17 2013 +0530
+++ b/src/jdk/nashorn/internal/ir/Symbol.java	Mon Nov 04 09:29:12 2013 +0530
@@ -75,6 +75,8 @@
     public static final int IS_SPECIALIZED_PARAM = 1 << 13;
     /** Is this symbol a shared temporary? */
     public static final int IS_SHARED            = 1 << 14;
+    /** Is this a function declaration? */
+    public static final int IS_FUNCTION_DECLARATION = 1 << 15;
 
     /** Null or name identifying symbol. */
     private final String name;
@@ -360,6 +362,14 @@
     }
 
     /**
+     * Check if this symbol is a function declaration
+     * @return true if a function declaration
+     */
+    public boolean isFunctionDeclaration() {
+        return (flags & IS_FUNCTION_DECLARATION) == IS_FUNCTION_DECLARATION;
+    }
+
+    /**
      * Creates an unshared copy of a symbol. The symbol must be currently shared.
      * @param newName the name for the new symbol.
      * @return a new, unshared symbol.
@@ -396,6 +406,16 @@
 
 
     /**
+     * Mark this symbol as a function declaration.
+     */
+    public void setIsFunctionDeclaration() {
+        if (!isFunctionDeclaration()) {
+            trace("SET IS FUNCTION DECLARATION");
+            flags |= IS_FUNCTION_DECLARATION;
+        }
+    }
+
+    /**
      * Check if this symbol is a variable
      * @return true if variable
      */
--- a/src/jdk/nashorn/internal/objects/Global.java	Thu Oct 31 12:50:17 2013 +0530
+++ b/src/jdk/nashorn/internal/objects/Global.java	Mon Nov 04 09:29:12 2013 +0530
@@ -53,19 +53,19 @@
 import jdk.nashorn.internal.runtime.GlobalObject;
 import jdk.nashorn.internal.runtime.JSType;
 import jdk.nashorn.internal.runtime.NativeJavaPackage;
+import jdk.nashorn.internal.runtime.PropertyDescriptor;
 import jdk.nashorn.internal.runtime.PropertyMap;
+import jdk.nashorn.internal.runtime.Scope;
 import jdk.nashorn.internal.runtime.ScriptEnvironment;
-import jdk.nashorn.internal.runtime.PropertyDescriptor;
-import jdk.nashorn.internal.runtime.arrays.ArrayData;
-import jdk.nashorn.internal.runtime.regexp.RegExpResult;
-import jdk.nashorn.internal.runtime.Scope;
 import jdk.nashorn.internal.runtime.ScriptFunction;
 import jdk.nashorn.internal.runtime.ScriptObject;
 import jdk.nashorn.internal.runtime.ScriptRuntime;
 import jdk.nashorn.internal.runtime.ScriptingFunctions;
 import jdk.nashorn.internal.runtime.Source;
+import jdk.nashorn.internal.runtime.arrays.ArrayData;
 import jdk.nashorn.internal.runtime.linker.Bootstrap;
 import jdk.nashorn.internal.runtime.linker.InvokeByName;
+import jdk.nashorn.internal.runtime.regexp.RegExpResult;
 import jdk.nashorn.internal.scripts.JO;
 
 /**
--- a/src/jdk/nashorn/internal/objects/NativeObject.java	Thu Oct 31 12:50:17 2013 +0530
+++ b/src/jdk/nashorn/internal/objects/NativeObject.java	Mon Nov 04 09:29:12 2013 +0530
@@ -60,6 +60,7 @@
 import jdk.nashorn.internal.runtime.ScriptRuntime;
 import jdk.nashorn.internal.runtime.linker.Bootstrap;
 import jdk.nashorn.internal.runtime.linker.InvokeByName;
+import jdk.nashorn.internal.runtime.linker.NashornBeansLinker;
 
 /**
  * ECMA 15.2 Object objects
@@ -729,8 +730,7 @@
             final MethodType methodType, final Object source) {
         final GuardedInvocation inv;
         try {
-            inv = linker.getGuardedInvocation(createLinkRequest(operation, methodType, source),
-                Bootstrap.getLinkerServices());
+            inv = NashornBeansLinker.getGuardedInvocation(linker, createLinkRequest(operation, methodType, source), Bootstrap.getLinkerServices());
             assert passesGuard(source, inv.getGuard());
         } catch(RuntimeException|Error e) {
             throw e;
--- a/src/jdk/nashorn/internal/runtime/ConsString.java	Thu Oct 31 12:50:17 2013 +0530
+++ b/src/jdk/nashorn/internal/runtime/ConsString.java	Mon Nov 04 09:29:12 2013 +0530
@@ -57,10 +57,7 @@
 
     @Override
     public String toString() {
-        if (!flat) {
-            flatten();
-        }
-        return (String) left;
+        return (String) flattened();
     }
 
     @Override
@@ -70,18 +67,19 @@
 
     @Override
     public char charAt(final int index) {
-        if (!flat) {
-            flatten();
-        }
-        return left.charAt(index);
+        return flattened().charAt(index);
     }
 
     @Override
     public CharSequence subSequence(final int start, final int end) {
+        return flattened().subSequence(start, end);
+    }
+
+    private CharSequence flattened() {
         if (!flat) {
             flatten();
         }
-        return left.subSequence(start, end);
+        return left;
     }
 
     private void flatten() {
--- a/src/jdk/nashorn/internal/runtime/JSType.java	Thu Oct 31 12:50:17 2013 +0530
+++ b/src/jdk/nashorn/internal/runtime/JSType.java	Mon Nov 04 09:29:12 2013 +0530
@@ -883,7 +883,7 @@
      */
     public static Object toJavaArray(final Object obj, final Class<?> componentType) {
         if (obj instanceof ScriptObject) {
-            return convertArray(((ScriptObject)obj).getArray().asObjectArray(), componentType);
+            return ((ScriptObject)obj).getArray().asArrayOfType(componentType);
         } else if (obj instanceof JSObject) {
             final ArrayLikeIterator<?> itr = ArrayLikeIterator.arrayLikeIterator(obj);
             final int len = (int) itr.getLength();
@@ -908,6 +908,15 @@
      * @return converted Java array
      */
     public static Object convertArray(final Object[] src, final Class<?> componentType) {
+        if(componentType == Object.class) {
+            for(int i = 0; i < src.length; ++i) {
+                final Object e = src[i];
+                if(e instanceof ConsString) {
+                    src[i] = e.toString();
+                }
+            }
+        }
+
         final int l = src.length;
         final Object dst = Array.newInstance(componentType, l);
         final MethodHandle converter = Bootstrap.getLinkerServices().getTypeConverter(Object.class, componentType);
--- a/src/jdk/nashorn/internal/runtime/Property.java	Thu Oct 31 12:50:17 2013 +0530
+++ b/src/jdk/nashorn/internal/runtime/Property.java	Mon Nov 04 09:29:12 2013 +0530
@@ -56,33 +56,36 @@
     public static final int WRITABLE_ENUMERABLE_CONFIGURABLE = 0b0000_0000_0000;
 
     /** ECMA 8.6.1 - Is this property not writable? */
-    public static final int NOT_WRITABLE     = 0b0000_0000_0001;
+    public static final int NOT_WRITABLE     = 1 << 0;
 
     /** ECMA 8.6.1 - Is this property not enumerable? */
-    public static final int NOT_ENUMERABLE   = 0b0000_0000_0010;
+    public static final int NOT_ENUMERABLE   = 1 << 1;
 
     /** ECMA 8.6.1 - Is this property not configurable? */
-    public static final int NOT_CONFIGURABLE = 0b0000_0000_0100;
+    public static final int NOT_CONFIGURABLE = 1 << 2;
 
-    private static final int MODIFY_MASK     = 0b0000_0000_1111;
+    private static final int MODIFY_MASK     = (NOT_WRITABLE | NOT_ENUMERABLE | NOT_CONFIGURABLE);
 
     /** Is this a spill property? See {@link AccessorProperty} */
-    public static final int IS_SPILL         = 0b0000_0001_0000;
+    public static final int IS_SPILL         = 1 << 3;
 
     /** Is this a function parameter? */
-    public static final int IS_PARAMETER     = 0b0000_0010_0000;
+    public static final int IS_PARAMETER     = 1 << 4;
 
     /** Is parameter accessed thru arguments? */
-    public static final int HAS_ARGUMENTS    = 0b0000_0100_0000;
+    public static final int HAS_ARGUMENTS    = 1 << 5;
 
     /** Is this property always represented as an Object? See {@link ObjectClassGenerator} and dual fields flag. */
-    public static final int IS_ALWAYS_OBJECT = 0b0000_1000_0000;
+    public static final int IS_ALWAYS_OBJECT = 1 << 6;
 
     /** Can this property be primitive? */
-    public static final int CAN_BE_PRIMITIVE = 0b0001_0000_0000;
+    public static final int CAN_BE_PRIMITIVE = 1 << 7;
 
     /** Can this property be undefined? */
-    public static final int CAN_BE_UNDEFINED = 0b0010_0000_0000;
+    public static final int CAN_BE_UNDEFINED = 1 << 8;
+
+    /* Is this a function declaration property ? */
+    public static final int IS_FUNCTION_DECLARATION = 1 << 9;
 
     /** Property key. */
     private final String key;
@@ -522,4 +525,12 @@
     public boolean canBeUndefined() {
         return (flags & CAN_BE_UNDEFINED) == CAN_BE_UNDEFINED;
     }
+
+    /**
+     * Check whether this property represents a function declaration.
+     * @return whether this property is a function declaration or not.
+     */
+    public boolean isFunctionDeclaration() {
+        return (flags & IS_FUNCTION_DECLARATION) == IS_FUNCTION_DECLARATION;
+    }
 }
--- a/src/jdk/nashorn/internal/runtime/ScriptObject.java	Thu Oct 31 12:50:17 2013 +0530
+++ b/src/jdk/nashorn/internal/runtime/ScriptObject.java	Mon Nov 04 09:29:12 2013 +0530
@@ -226,14 +226,23 @@
 
         for (final Property property : properties) {
             final String key = property.getKey();
-
-            if (newMap.findProperty(key) == null) {
+            final Property oldProp = newMap.findProperty(key);
+            if (oldProp == null) {
                 if (property instanceof UserAccessorProperty) {
                     final UserAccessorProperty prop = this.newUserAccessors(key, property.getFlags(), property.getGetterFunction(source), property.getSetterFunction(source));
                     newMap = newMap.addProperty(prop);
                 } else {
                     newMap = newMap.addPropertyBind((AccessorProperty)property, source);
                 }
+            } else {
+                // See ECMA section 10.5 Declaration Binding Instantiation
+                // step 5 processing each function declaration.
+                if (property.isFunctionDeclaration() && !oldProp.isConfigurable()) {
+                     if (oldProp instanceof UserAccessorProperty ||
+                         !(oldProp.isWritable() && oldProp.isEnumerable())) {
+                         throw typeError("cant.redefine.property", key, ScriptRuntime.safeToString(this));
+                     }
+                }
             }
         }
 
--- a/src/jdk/nashorn/internal/runtime/linker/Bootstrap.java	Thu Oct 31 12:50:17 2013 +0530
+++ b/src/jdk/nashorn/internal/runtime/linker/Bootstrap.java	Mon Nov 04 09:29:12 2013 +0530
@@ -63,7 +63,7 @@
         final DynamicLinkerFactory factory = new DynamicLinkerFactory();
         factory.setPrioritizedLinkers(new NashornLinker(), new NashornPrimitiveLinker(), new NashornStaticClassLinker(),
                 new BoundDynamicMethodLinker(), new JavaSuperAdapterLinker(), new JSObjectLinker(), new ReflectionCheckLinker());
-        factory.setFallbackLinkers(new BeansLinker(), new NashornBottomLinker());
+        factory.setFallbackLinkers(new NashornBeansLinker(), new NashornBottomLinker());
         factory.setSyncOnRelink(true);
         final int relinkThreshold = Options.getIntProperty("nashorn.unstable.relink.threshold", -1);
         if (relinkThreshold > -1) {
--- a/src/jdk/nashorn/internal/runtime/linker/BoundDynamicMethodLinker.java	Thu Oct 31 12:50:17 2013 +0530
+++ b/src/jdk/nashorn/internal/runtime/linker/BoundDynamicMethodLinker.java	Mon Nov 04 09:29:12 2013 +0530
@@ -72,7 +72,7 @@
                 type.changeParameterType(0, dynamicMethodClass).changeParameterType(1, boundThis.getClass()));
 
         // Delegate to BeansLinker
-        final GuardedInvocation inv = BeansLinker.getLinkerForClass(dynamicMethodClass).getGuardedInvocation(
+        final GuardedInvocation inv = NashornBeansLinker.getGuardedInvocation(BeansLinker.getLinkerForClass(dynamicMethodClass),
                 linkRequest.replaceArguments(newDescriptor, args), linkerServices);
         if(inv == null) {
             return null;
--- a/src/jdk/nashorn/internal/runtime/linker/JavaSuperAdapterLinker.java	Thu Oct 31 12:50:17 2013 +0530
+++ b/src/jdk/nashorn/internal/runtime/linker/JavaSuperAdapterLinker.java	Mon Nov 04 09:29:12 2013 +0530
@@ -100,8 +100,9 @@
                 type.changeParameterType(0, adapterClass), 0);
 
         // Delegate to BeansLinker
-        final GuardedInvocation guardedInv = BeansLinker.getLinkerForClass(adapterClass).getGuardedInvocation(
-                linkRequest.replaceArguments(newDescriptor, args), linkerServices);
+        final GuardedInvocation guardedInv = NashornBeansLinker.getGuardedInvocation(
+                BeansLinker.getLinkerForClass(adapterClass), linkRequest.replaceArguments(newDescriptor, args),
+                linkerServices);
 
         final MethodHandle guard = IS_ADAPTER_OF_CLASS.bindTo(adapterClass);
         if(guardedInv == null) {
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/jdk/nashorn/internal/runtime/linker/NashornBeansLinker.java	Mon Nov 04 09:29:12 2013 +0530
@@ -0,0 +1,127 @@
+/*
+ * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+package jdk.nashorn.internal.runtime.linker;
+
+import java.lang.invoke.MethodHandle;
+import java.lang.invoke.MethodHandles;
+import java.lang.invoke.MethodType;
+import jdk.internal.dynalink.beans.BeansLinker;
+import jdk.internal.dynalink.linker.ConversionComparator.Comparison;
+import jdk.internal.dynalink.linker.GuardedInvocation;
+import jdk.internal.dynalink.linker.GuardingDynamicLinker;
+import jdk.internal.dynalink.linker.LinkRequest;
+import jdk.internal.dynalink.linker.LinkerServices;
+import jdk.internal.dynalink.support.Lookup;
+import jdk.nashorn.internal.runtime.ConsString;
+
+/**
+ * This linker delegates to a {@code BeansLinker} but passes it a special linker services object that has a modified
+ * {@code asType} method that will ensure that we never pass internal engine objects that should not be externally
+ * observable (currently only ConsString) to Java APIs, but rather that we flatten it into a String. We can't just add
+ * this functionality as custom converters via {@code GuaardingTypeConverterFactory}, since they are not consulted when
+ * the target method handle parameter signature is {@code Object}.
+ */
+public class NashornBeansLinker implements GuardingDynamicLinker {
+    private static final MethodHandle EXPORT_ARGUMENT = new Lookup(MethodHandles.lookup()).findOwnStatic("exportArgument", Object.class, Object.class);
+
+    private final BeansLinker beansLinker = new BeansLinker();
+
+    @Override
+    public GuardedInvocation getGuardedInvocation(final LinkRequest linkRequest, final LinkerServices linkerServices) throws Exception {
+        return getGuardedInvocation(beansLinker, linkRequest, linkerServices);
+    }
+
+    /**
+     * Delegates to the specified linker but injects its linker services wrapper so that it will apply all special
+     * conversions that this class does.
+     * @param delegateLinker the linker to which the actual work is delegated to.
+     * @param linkRequest the delegated link request
+     * @param linkerServices the original link services that will be augmented with special conversions
+     * @return the guarded invocation from the delegate, possibly augmented with special conversions
+     * @throws Exception if the delegate throws an exception
+     */
+    public static GuardedInvocation getGuardedInvocation(final GuardingDynamicLinker delegateLinker, final LinkRequest linkRequest, final LinkerServices linkerServices) throws Exception {
+        return delegateLinker.getGuardedInvocation(linkRequest, new NashornBeansLinkerServices(linkerServices));
+    }
+
+    @SuppressWarnings("unused")
+    private static Object exportArgument(final Object arg) {
+        return arg instanceof ConsString ? arg.toString() : arg;
+    }
+
+    private static class NashornBeansLinkerServices implements LinkerServices {
+        private final LinkerServices linkerServices;
+
+        NashornBeansLinkerServices(final LinkerServices linkerServices) {
+            this.linkerServices = linkerServices;
+        }
+
+        @Override
+        public MethodHandle asType(final MethodHandle handle, final MethodType fromType) {
+            final MethodHandle typed = linkerServices.asType(handle, fromType);
+
+            final MethodType handleType = handle.type();
+            final int paramCount = handleType.parameterCount();
+            assert fromType.parameterCount() == handleType.parameterCount();
+
+            MethodHandle[] filters = null;
+            for(int i = 0; i < paramCount; ++i) {
+                if(shouldConvert(handleType.parameterType(i), fromType.parameterType(i))) {
+                    if(filters == null) {
+                        filters = new MethodHandle[paramCount];
+                    }
+                    filters[i] = EXPORT_ARGUMENT;
+                }
+            }
+
+            return filters != null ? MethodHandles.filterArguments(typed, 0, filters) : typed;
+        }
+
+        private static boolean shouldConvert(final Class<?> handleType, final Class<?> fromType) {
+            return handleType == Object.class && fromType == Object.class;
+        }
+
+        @Override
+        public MethodHandle getTypeConverter(final Class<?> sourceType, final Class<?> targetType) {
+            return linkerServices.getTypeConverter(sourceType, targetType);
+        }
+
+        @Override
+        public boolean canConvert(final Class<?> from, final Class<?> to) {
+            return linkerServices.canConvert(from, to);
+        }
+
+        @Override
+        public GuardedInvocation getGuardedInvocation(final LinkRequest linkRequest) throws Exception {
+            return linkerServices.getGuardedInvocation(linkRequest);
+        }
+
+        @Override
+        public Comparison compareConversion(final Class<?> sourceType, final Class<?> targetType1, final Class<?> targetType2) {
+            return linkerServices.compareConversion(sourceType, targetType1, targetType2);
+        }
+    }
+}
--- a/src/jdk/nashorn/internal/runtime/linker/NashornStaticClassLinker.java	Thu Oct 31 12:50:17 2013 +0530
+++ b/src/jdk/nashorn/internal/runtime/linker/NashornStaticClassLinker.java	Mon Nov 04 09:29:12 2013 +0530
@@ -93,7 +93,7 @@
     }
 
     private static GuardedInvocation delegate(LinkerServices linkerServices, final LinkRequest request) throws Exception {
-        return staticClassLinker.getGuardedInvocation(request, linkerServices);
+        return NashornBeansLinker.getGuardedInvocation(staticClassLinker, request, linkerServices);
     }
 
     private static GuardedInvocation checkNullConstructor(final GuardedInvocation ctorInvocation, final Class<?> receiverClass) {
--- a/test/script/basic/JDK-8015355.js	Thu Oct 31 12:50:17 2013 +0530
+++ b/test/script/basic/JDK-8015355.js	Mon Nov 04 09:29:12 2013 +0530
@@ -28,10 +28,6 @@
  * @run
  */
 
-function fail(msg) {
-    print(msg);
-}
-
 function check(callback) {
     try {
         callback();
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/script/basic/JDK-8027236.js	Mon Nov 04 09:29:12 2013 +0530
@@ -0,0 +1,37 @@
+/*
+ * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ * 
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ * 
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ * 
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ * 
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/**
+ * JDK-8027236: Ensure ScriptObject and ConsString aren't visible to Java
+ *
+ * @test
+ * @run
+ */
+
+// Check that ConsString is flattened
+var m = new java.util.HashMap()
+var x = "f"
+x += "oo"
+m.put(x, "bar")
+print(m.get("foo"))
+// Note: many more tests are run by the JavaExportImportTest TestNG class.
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/script/basic/JDK-8027236.js.EXPECTED	Mon Nov 04 09:29:12 2013 +0530
@@ -0,0 +1,1 @@
+bar
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/script/basic/JDK-8027700.js	Mon Nov 04 09:29:12 2013 +0530
@@ -0,0 +1,54 @@
+/*
+ * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ * 
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ * 
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ * 
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ * 
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/**
+ * JDK-8027700: function redeclaration checks missing for declaration binding instantiation
+ *
+ * @test
+ * @run
+ */
+
+Object.defineProperty(this,"x", {
+        value:0,
+        writable:true,
+        enumerable:false
+})
+
+try {
+    eval("function x() {}");
+    fail("should have thrown TypeError");
+} catch (e) {
+    if (! (e instanceof TypeError)) {
+        fail("TypeError expected but got " + e);
+    }
+}
+
+Object.defineProperty(this, "foo", { value:0 }) 
+try {
+    eval("function foo() {}");
+    fail("should have thrown TypeError");
+} catch (e) {
+    if (! (e instanceof TypeError)) {
+        fail("TypeError expected but got " + e);
+    }
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/src/jdk/nashorn/api/javaaccess/ConsStringTest.java	Mon Nov 04 09:29:12 2013 +0530
@@ -0,0 +1,99 @@
+/*
+ * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+package jdk.nashorn.api.javaaccess;
+
+import static org.testng.AssertJUnit.assertEquals;
+
+import java.util.HashMap;
+import java.util.Map;
+import javax.script.Bindings;
+import javax.script.ScriptContext;
+import javax.script.ScriptEngine;
+import javax.script.ScriptEngineManager;
+import javax.script.ScriptException;
+import jdk.nashorn.api.scripting.JSObject;
+import org.testng.TestNG;
+import org.testng.annotations.AfterClass;
+import org.testng.annotations.BeforeClass;
+import org.testng.annotations.Test;
+
+public class ConsStringTest {
+    private static ScriptEngine e = null;
+
+    public static void main(final String[] args) {
+        TestNG.main(args);
+    }
+
+    @BeforeClass
+    public static void setUpClass() throws ScriptException {
+        e = new ScriptEngineManager().getEngineByName("nashorn");
+    }
+
+    @AfterClass
+    public static void tearDownClass() {
+        e = null;
+    }
+
+    @Test
+    public void testConsStringFlattening() throws ScriptException {
+        final Bindings b = e.getBindings(ScriptContext.ENGINE_SCOPE);
+        final Map<Object, Object> m = new HashMap<>();
+        b.put("m", m);
+        e.eval("var x = 'f'; x += 'oo'; var y = 'b'; y += 'ar'; m.put(x, y)");
+        assertEquals("bar", m.get("foo"));
+    }
+
+    @Test
+    public void testConsStringFromMirror() throws ScriptException {
+        final Bindings b = e.getBindings(ScriptContext.ENGINE_SCOPE);
+        final Map<Object, Object> m = new HashMap<>();
+        e.eval("var x = 'f'; x += 'oo'; var obj = {x: x};");
+        assertEquals("foo", ((JSObject)b.get("obj")).getMember("x"));
+    }
+
+    @Test
+    public void testArrayConsString() throws ScriptException {
+        final Bindings b = e.getBindings(ScriptContext.ENGINE_SCOPE);
+        final ArrayHolder h = new ArrayHolder();
+        b.put("h", h);
+        e.eval("var x = 'f'; x += 'oo'; h.array = [x];");
+        assertEquals(1, h.array.length);
+        assertEquals("foo", h.array[0]);
+    }
+
+
+    public static class ArrayHolder {
+        private Object[] array;
+
+        public void setArray(Object[] array) {
+            this.array = array;
+        }
+
+        public Object[] getArray() {
+            return array;
+        }
+    }
+}