Mercurial > hg > truffle
annotate agent/src/share/classes/sun/jvm/hotspot/bugspot/PackageScanner.java @ 1913:3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
Summary: Allow CONSTANT_InvokeDynamic nodes to have any number of extra operands.
Reviewed-by: twisti
| author | jrose |
|---|---|
| date | Sat, 30 Oct 2010 13:08:23 -0700 |
| parents | c18cbe5936b8 |
| children |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved. |
| 0 | 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. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
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6941466: Oracle rebranding changes for Hotspot repositories
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
|
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
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20 * or visit www.oracle.com if you need additional information or have any |
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c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 25 package sun.jvm.hotspot.bugspot; | |
| 26 | |
| 27 import java.io.*; | |
| 28 | |
| 29 /** Scans a .java file for the package that it is in. */ | |
| 30 | |
| 31 public class PackageScanner { | |
| 32 | |
| 33 public PackageScanner() { | |
| 34 } | |
| 35 | |
| 36 public String scan(String filename) { | |
| 37 return scan(new File(filename)); | |
| 38 } | |
| 39 | |
| 40 /** Returns the String comprising the package name of the classes in | |
| 41 this .java file. Returns the (non-null) empty string if any | |
| 42 error occurs or if the classes are in the unnamed package. */ | |
| 43 public String scan(File file) { | |
| 44 BufferedReader buf = null; | |
| 45 String res = ""; | |
| 46 try { | |
| 47 buf = new BufferedReader(new FileReader(file)); | |
| 48 StreamTokenizer tok = new StreamTokenizer(buf); | |
| 49 tok.slashStarComments(true); | |
| 50 tok.slashSlashComments(true); | |
| 51 if (tok.nextToken() != StreamTokenizer.TT_WORD) { | |
| 52 return res; | |
| 53 } | |
| 54 if (!tok.sval.equals("package")) { | |
| 55 return res; | |
| 56 } | |
| 57 if (tok.nextToken() != StreamTokenizer.TT_WORD) { | |
| 58 return res; | |
| 59 } | |
| 60 res = tok.sval; | |
| 61 return res; | |
| 62 } catch (FileNotFoundException e) { | |
| 63 return res; | |
| 64 } catch (IOException e) { | |
| 65 return res; | |
| 66 } finally { | |
| 67 try { | |
| 68 if (buf != null) { | |
| 69 buf.close(); | |
| 70 } | |
| 71 } catch (IOException e) { | |
| 72 } | |
| 73 } | |
| 74 } | |
| 75 | |
| 76 public static void main(String[] args) { | |
| 77 if (args.length != 1) { | |
| 78 usage(); | |
| 79 } | |
| 80 | |
| 81 System.out.println(new PackageScanner().scan(args[0])); | |
| 82 } | |
| 83 | |
| 84 private static void usage() { | |
| 85 System.err.println("Usage: java PackageScanner <.java file name>"); | |
| 86 System.err.println("Prints package the .java file is in to stdout."); | |
| 87 System.exit(1); | |
| 88 } | |
| 89 } |