CodeGenerator


1   /*
2    * JBET - Java Binary Enhancement Tool
3    * Copyright (c) 2003 Networks Associates Technology, Inc.
4    *
5    * This software was developed under DARPA/SPAWAR contract
6    * N66001-00-C-8602 "SPMA" as part of the
7    * DARPA OASIS research program.
8    *
9    * Redistribution and use in source and binary forms, with or without
10   * modification, are permitted provided that the following conditions
11   * are met:
12   * 1. Redistributions of source code must retain the above copyright
13   *    notice, this list of conditions and the following disclaimer.
14   * 2. Redistributions in binary form must reproduce the above copyright
15   *    notice, this list of conditions and the following disclaimer in the
16   *    documentation and/or other materials provided with the distribution.
17   *
18   * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19   * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21   * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22   * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23   * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24   * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25   * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26   * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27   * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28   * SUCH DAMAGE.
29   */
30  
31  /* Interface for JVM code generation. (Local allocation support was moved to LocalAccess)
32     @author Andrew Reisse */
33  
34  package jbet;
35  import java.util.*;
36  
37  public interface CodeGenerator
38  {
39      /* Generate JVM instructions from dags.
40  
41      @param dags    List of input basic blocks
42      @param outtype Specify type of return value
43      @return        Basic blocks as JVM instructions
44      */
45  
46      abstract public Block[] codegen (final DagSnippit dags, LocalAccess locals, Class   outt);
47  }
48
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