8141144: Move NameCodec to jdk.nashorn.internal space

Reviewed-by: hannesw, sundar

nashorn/src/jdk.scripting.nashorn/share/classes/jdk/nashorn/internal/codegen/Compiler.java

@@ -49,7 +49,6 @@ import java.util.TreeMap;
 import java.util.concurrent.atomic.AtomicInteger;
 import java.util.function.Consumer;
 import java.util.logging.Level;
-import jdk.internal.dynalink.support.NameCodec;
 import jdk.nashorn.internal.codegen.types.Type;
 import jdk.nashorn.internal.ir.Expression;
 import jdk.nashorn.internal.ir.FunctionNode;
@@ -66,6 +65,7 @@ import jdk.nashorn.internal.runtime.ScriptEnvironment;
 import jdk.nashorn.internal.runtime.ScriptObject;
 import jdk.nashorn.internal.runtime.ScriptRuntime;
 import jdk.nashorn.internal.runtime.Source;
+import jdk.nashorn.internal.runtime.linker.NameCodec;
 import jdk.nashorn.internal.runtime.logging.DebugLogger;
 import jdk.nashorn.internal.runtime.logging.Loggable;
 import jdk.nashorn.internal.runtime.logging.Logger;

nashorn/src/jdk.scripting.nashorn/share/classes/jdk/nashorn/internal/codegen/MethodEmitter.java

@@ -69,6 +69,7 @@ import static jdk.nashorn.internal.codegen.CompilerConstants.methodDescriptor;
 import static jdk.nashorn.internal.codegen.CompilerConstants.staticField;
 import static jdk.nashorn.internal.codegen.CompilerConstants.virtualCallNoLookup;
 import static jdk.nashorn.internal.codegen.ObjectClassGenerator.PRIMITIVE_FIELD_TYPE;
+import static jdk.nashorn.internal.runtime.linker.NameCodec.EMPTY_NAME;
 import static jdk.nashorn.internal.runtime.linker.NashornCallSiteDescriptor.CALLSITE_OPTIMISTIC;
 import static jdk.nashorn.internal.runtime.linker.NashornCallSiteDescriptor.CALLSITE_PROGRAM_POINT_SHIFT;
 
@@ -79,7 +80,6 @@ import java.util.EnumSet;
 import java.util.IdentityHashMap;
 import java.util.List;
 import java.util.Map;
-import jdk.internal.dynalink.support.NameCodec;
 import jdk.internal.org.objectweb.asm.Handle;
 import jdk.internal.org.objectweb.asm.MethodVisitor;
 import jdk.nashorn.internal.codegen.ClassEmitter.Flag;
@@ -107,6 +107,7 @@ import jdk.nashorn.internal.runtime.ScriptObject;
 import jdk.nashorn.internal.runtime.ScriptRuntime;
 import jdk.nashorn.internal.runtime.UnwarrantedOptimismException;
 import jdk.nashorn.internal.runtime.linker.Bootstrap;
+import jdk.nashorn.internal.runtime.linker.NameCodec;
 import jdk.nashorn.internal.runtime.linker.NashornCallSiteDescriptor;
 import jdk.nashorn.internal.runtime.logging.DebugLogger;
 import jdk.nashorn.internal.runtime.options.Options;
@@ -125,8 +126,6 @@ import jdk.nashorn.internal.runtime.options.Options;
  * including bytecode stack contents
  */
 public class MethodEmitter {
-    private static final String EMPTY_NAME = NameCodec.encode("");
-
     /** The ASM MethodVisitor we are plugged into */
     private final MethodVisitor method;
 

nashorn/src/jdk.scripting.nashorn/share/classes/jdk/nashorn/internal/ir/debug/NashornTextifier.java

@@ -39,7 +39,6 @@ import java.util.LinkedHashSet;
 import java.util.List;
 import java.util.Map;
 import java.util.Set;
-import jdk.internal.dynalink.support.NameCodec;
 import jdk.internal.org.objectweb.asm.Attribute;
 import jdk.internal.org.objectweb.asm.Handle;
 import jdk.internal.org.objectweb.asm.Label;
@@ -50,6 +49,7 @@ import jdk.internal.org.objectweb.asm.util.Printer;
 import jdk.internal.org.objectweb.asm.util.TraceSignatureVisitor;
 import jdk.nashorn.internal.runtime.ScriptEnvironment;
 import jdk.nashorn.internal.runtime.linker.Bootstrap;
+import jdk.nashorn.internal.runtime.linker.NameCodec;
 import jdk.nashorn.internal.runtime.linker.NashornCallSiteDescriptor;
 
 /**

nashorn/src/jdk.scripting.nashorn/share/classes/jdk/nashorn/internal/parser/Parser.java

@@ -68,8 +68,6 @@ import java.util.HashSet;
 import java.util.Iterator;
 import java.util.List;
 import java.util.Map;
-
-import jdk.internal.dynalink.support.NameCodec;
 import jdk.nashorn.internal.codegen.CompilerConstants;
 import jdk.nashorn.internal.codegen.Namespace;
 import jdk.nashorn.internal.ir.AccessNode;
@@ -121,6 +119,7 @@ import jdk.nashorn.internal.runtime.ScriptEnvironment;
 import jdk.nashorn.internal.runtime.ScriptingFunctions;
 import jdk.nashorn.internal.runtime.Source;
 import jdk.nashorn.internal.runtime.Timing;
+import jdk.nashorn.internal.runtime.linker.NameCodec;
 import jdk.nashorn.internal.runtime.logging.DebugLogger;
 import jdk.nashorn.internal.runtime.logging.Loggable;
 import jdk.nashorn.internal.runtime.logging.Logger;

nashorn/src/jdk.scripting.nashorn/share/classes/jdk/nashorn/internal/runtime/RecompilableScriptFunctionData.java

@@ -44,7 +44,6 @@ import java.util.concurrent.ExecutorService;
 import java.util.concurrent.LinkedBlockingDeque;
 import java.util.concurrent.ThreadPoolExecutor;
 import java.util.concurrent.TimeUnit;
-import jdk.internal.dynalink.support.NameCodec;
 import jdk.nashorn.internal.codegen.Compiler;
 import jdk.nashorn.internal.codegen.Compiler.CompilationPhases;
 import jdk.nashorn.internal.codegen.CompilerConstants;
@@ -67,6 +66,7 @@ import jdk.nashorn.internal.objects.Global;
 import jdk.nashorn.internal.parser.Parser;
 import jdk.nashorn.internal.parser.Token;
 import jdk.nashorn.internal.parser.TokenType;
+import jdk.nashorn.internal.runtime.linker.NameCodec;
 import jdk.nashorn.internal.runtime.logging.DebugLogger;
 import jdk.nashorn.internal.runtime.logging.Loggable;
 import jdk.nashorn.internal.runtime.logging.Logger;

nashorn/src/jdk.scripting.nashorn/share/classes/jdk/nashorn/internal/runtime/linker/Bootstrap.java

@@ -45,7 +45,6 @@ import jdk.internal.dynalink.linker.LinkRequest;
 import jdk.internal.dynalink.linker.LinkerServices;
 import jdk.internal.dynalink.linker.MethodTypeConversionStrategy;
 import jdk.internal.dynalink.linker.support.TypeUtilities;
-import jdk.internal.dynalink.support.NameCodec;
 import jdk.nashorn.api.scripting.JSObject;
 import jdk.nashorn.internal.codegen.CompilerConstants.Call;
 import jdk.nashorn.internal.lookup.MethodHandleFactory;

nashorn/src/jdk.scripting.nashorn/share/classes/jdk/nashorn/internal/runtime/linker/NameCodec.java

@@ -23,66 +23,7 @@
  * questions.
  */
 
-/*
+package jdk.nashorn.internal.runtime.linker;
- * This file is available under and governed by the GNU General Public
- * License version 2 only, as published by the Free Software Foundation.
- * However, the following notice accompanied the original version of this
- * file, and Oracle licenses the original version of this file under the BSD
- * license:
- */
-/*
-   Copyright 2009-2013 Attila Szegedi
-
-   Licensed under both the Apache License, Version 2.0 (the "Apache License")
-   and the BSD License (the "BSD License"), with licensee being free to
-   choose either of the two at their discretion.
-
-   You may not use this file except in compliance with either the Apache
-   License or the BSD License.
-
-   If you choose to use this file in compliance with the Apache License, the
-   following notice applies to you:
-
-       You may obtain a copy of the Apache License at
-
-           http://www.apache.org/licenses/LICENSE-2.0
-
-       Unless required by applicable law or agreed to in writing, software
-       distributed under the License is distributed on an "AS IS" BASIS,
-       WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
-       implied. See the License for the specific language governing
-       permissions and limitations under the License.
-
-   If you choose to use this file in compliance with the BSD License, the
-   following notice applies to you:
-
-       Redistribution and use in source and binary forms, with or without
-       modification, are permitted provided that the following conditions are
-       met:
-       * Redistributions of source code must retain the above copyright
-         notice, this list of conditions and the following disclaimer.
-       * Redistributions in binary form must reproduce the above copyright
-         notice, this list of conditions and the following disclaimer in the
-         documentation and/or other materials provided with the distribution.
-       * Neither the name of the copyright holder nor the names of
-         contributors may be used to endorse or promote products derived from
-         this software without specific prior written permission.
-
-       THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
-       IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
-       TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
-       PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDER
-       BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
-       CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
-       SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
-       BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
-       WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
-       OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-       ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-*/
-
-package jdk.internal.dynalink.support;
-
 
 /**
  * Implements the name mangling and demangling as specified by John Rose's
@@ -94,7 +35,10 @@ package jdk.internal.dynalink.support;
 public final class NameCodec {
     private static final char ESCAPE_CHAR = '\\';
     private static final char EMPTY_ESCAPE = '=';
-    private static final String EMPTY_NAME = new String(new char[] { ESCAPE_CHAR, EMPTY_ESCAPE });
+    /**
+     * Canonical encoding for the empty name.
+     */
+    public static final String EMPTY_NAME = new String(new char[] { ESCAPE_CHAR, EMPTY_ESCAPE });
     private static final char EMPTY_CHAR = 0xFEFF;
 
     private static final int MIN_ENCODING = '$';

nashorn/src/jdk.scripting.nashorn/share/classes/jdk/nashorn/internal/runtime/linker/NashornCallSiteDescriptor.java

@@ -38,7 +38,6 @@ import jdk.internal.dynalink.CompositeOperation;
 import jdk.internal.dynalink.NamedOperation;
 import jdk.internal.dynalink.Operation;
 import jdk.internal.dynalink.StandardOperation;
-import jdk.internal.dynalink.support.NameCodec;
 import jdk.nashorn.internal.ir.debug.NashornTextifier;
 import jdk.nashorn.internal.runtime.AccessControlContextFactory;
 import jdk.nashorn.internal.runtime.ScriptRuntime;