1 /*
 2  * Copyright (c) 2024, 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.code.tools.renderer;
27 
28 import java.lang.reflect.code.Block;
29 import java.lang.reflect.code.Value;
30 import java.util.HashMap;
31 import java.util.Map;
32 
33 public final class GlobalValueBlockNaming {
34     final Map<Value, String> gvn;
35     final Map<Block, String> gbn;
36     int valueOrdinal = 0;
37     int blockOrdinal = 0;
38 
39     GlobalValueBlockNaming() {
40         this.gvn = new HashMap<>();
41         this.gbn = new HashMap<>();
42     }
43 
44     String getValueName(Value _v) {
45         return gvn.computeIfAbsent(_v, v -> String.valueOf(valueOrdinal++));
46     }
47 
48     String getBlockName(Block _b) {
49         return gbn.computeIfAbsent(_b, b -> "block_" + blockOrdinal++);
50     }
51 }