1 /*
   2  * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package jdk.nashorn.internal.codegen;
  27 
  28 import jdk.nashorn.internal.codegen.types.Type;
  29 import jdk.nashorn.internal.ir.Symbol;
  30 
  31 /**
  32  * A tuple of values used for map creation
  33  * @param <T> value type
  34  */
  35 class MapTuple<T> {
  36     final String key;
  37     final Symbol symbol;
  38     final Type   type;
  39     final T      value;
  40 
  41     MapTuple(final String key, final Symbol symbol, final Type type) {
  42         this(key, symbol, type, null);
  43     }
  44 
  45     MapTuple(final String key, final Symbol symbol, final Type type, final T value) {
  46         this.key    = key;
  47         this.symbol = symbol;
  48         this.type   = type;
  49         this.value  = value;
  50     }
  51 
  52     public Class<?> getValueType() {
  53         return null; //until proven otherwise we are undefined, see NASHORN-592 int.class;
  54     }
  55 
  56     boolean isPrimitive() {
  57         return getValueType() != null && getValueType().isPrimitive() && getValueType() != boolean.class;
  58     }
  59 
  60     @Override
  61     public String toString() {
  62         return "[key=" + key + ", symbol=" + symbol + ", value=" + value + " (" + (value == null ? "null" : value.getClass().getSimpleName()) +")]";
  63     }
  64 }