src/java.base/share/classes/sun/reflect/ConstantPool.java

@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 2003, 2011, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2003, 2015, 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

@@ -34,26 +34,73 @@
 public class ConstantPool {
   // Number of entries in this constant pool (= maximum valid constant pool index)
   public int      getSize()                      { return getSize0            (constantPoolOop);        }
   public Class<?> getClassAt         (int index) { return getClassAt0         (constantPoolOop, index); }
   public Class<?> getClassAtIfLoaded (int index) { return getClassAtIfLoaded0 (constantPoolOop, index); }
+  // Returns a class reference index for a method or a field.
+  public int getClassRefIndexAt(int index) {
+      return getClassRefIndexAt0(constantPoolOop, index);
+  }
   // Returns either a Method or Constructor.
   // Static initializers are returned as Method objects.
   public Member   getMethodAt        (int index) { return getMethodAt0        (constantPoolOop, index); }
   public Member   getMethodAtIfLoaded(int index) { return getMethodAtIfLoaded0(constantPoolOop, index); }
   public Field    getFieldAt         (int index) { return getFieldAt0         (constantPoolOop, index); }
   public Field    getFieldAtIfLoaded (int index) { return getFieldAtIfLoaded0 (constantPoolOop, index); }
   // Fetches the class name, member (field, method or interface
   // method) name, and type descriptor as an array of three Strings
   public String[] getMemberRefInfoAt (int index) { return getMemberRefInfoAt0 (constantPoolOop, index); }
+  // Returns a name and type reference index for a method, a field or an invokedynamic.
+  public int getNameAndTypeRefIndexAt(int index) {
+      return getNameAndTypeRefIndexAt0(constantPoolOop, index);
+  }
+  // Fetches the name and type from name_and_type index as an array of two Strings
+  public String[] getNameAndTypeRefInfoAt(int index) {
+      return getNameAndTypeRefInfoAt0(constantPoolOop, index);
+  }
   public int      getIntAt           (int index) { return getIntAt0           (constantPoolOop, index); }
   public long     getLongAt          (int index) { return getLongAt0          (constantPoolOop, index); }
   public float    getFloatAt         (int index) { return getFloatAt0         (constantPoolOop, index); }
   public double   getDoubleAt        (int index) { return getDoubleAt0        (constantPoolOop, index); }
   public String   getStringAt        (int index) { return getStringAt0        (constantPoolOop, index); }
   public String   getUTF8At          (int index) { return getUTF8At0          (constantPoolOop, index); }
+  public Tag getTagAt(int index) {
+      return Tag.valueOf(getTagAt0(constantPoolOop, index));
+  }
+
+  public static enum Tag {
+      UTF8(1),
+      INTEGER(3),
+      FLOAT(4),
+      LONG(5),
+      DOUBLE(6),
+      CLASS(7),
+      STRING(8),
+      FIELDREF(9),
+      METHODREF(10),
+      INTERFACEMETHODREF(11),
+      NAMEANDTYPE(12),
+      METHODHANDLE(15),
+      METHODTYPE(16),
+      INVOKEDYNAMIC(18),
+      INVALID(0);
+
+      private final int tagCode;
 
+      private Tag(int tagCode) {
+          this.tagCode = tagCode;
+      }
+      
+      private static Tag valueOf(byte v) {
+          for (Tag tag : Tag.values()) {
+              if (tag.tagCode == v) {
+                  return tag;
+              }
+          }
+          throw new IllegalArgumentException("Unknown constant pool tag code " + v);
+      }
+   }
   //---------------------------------------------------------------------------
   // Internals only below this point
   //
 
   static {

@@ -64,17 +111,21 @@
   private Object constantPoolOop;
 
   private native int      getSize0            (Object constantPoolOop);
   private native Class<?> getClassAt0         (Object constantPoolOop, int index);
   private native Class<?> getClassAtIfLoaded0 (Object constantPoolOop, int index);
+  private native int      getClassRefIndexAt0 (Object constantPoolOop, int index);
   private native Member   getMethodAt0        (Object constantPoolOop, int index);
   private native Member   getMethodAtIfLoaded0(Object constantPoolOop, int index);
   private native Field    getFieldAt0         (Object constantPoolOop, int index);
   private native Field    getFieldAtIfLoaded0 (Object constantPoolOop, int index);
   private native String[] getMemberRefInfoAt0 (Object constantPoolOop, int index);
+  private native int      getNameAndTypeRefIndexAt0(Object constantPoolOop, int index);
+  private native String[] getNameAndTypeRefInfoAt0(Object constantPoolOop, int index);
   private native int      getIntAt0           (Object constantPoolOop, int index);
   private native long     getLongAt0          (Object constantPoolOop, int index);
   private native float    getFloatAt0         (Object constantPoolOop, int index);
   private native double   getDoubleAt0        (Object constantPoolOop, int index);
   private native String   getStringAt0        (Object constantPoolOop, int index);
   private native String   getUTF8At0          (Object constantPoolOop, int index);
+  private native byte     getTagAt0           (Object constantPoolOop, int index);
 }