Mercurial > lasercutter
comparison src/clojure/asm/commons/package.html @ 10:ef7dbbd6452c
added clojure source goodness
| author | Robert McIntyre <rlm@mit.edu> |
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| date | Sat, 21 Aug 2010 06:25:44 -0400 |
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| 9:35cf337adfcf | 10:ef7dbbd6452c |
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| 1 <html> | |
| 2 <!-- | |
| 3 * ASM: a very small and fast Java bytecode manipulation framework | |
| 4 * Copyright (c) 2000-2005 INRIA, France Telecom | |
| 5 * All rights reserved. | |
| 6 * | |
| 7 * Redistribution and use in source and binary forms, with or without | |
| 8 * modification, are permitted provided that the following conditions | |
| 9 * are met: | |
| 10 * 1. Redistributions of source code must retain the above copyright | |
| 11 * notice, this list of conditions and the following disclaimer. | |
| 12 * 2. Redistributions in binary form must reproduce the above copyright | |
| 13 * notice, this list of conditions and the following disclaimer in the | |
| 14 * documentation and/or other materials provided with the distribution. | |
| 15 * 3. Neither the name of the copyright holders nor the names of its | |
| 16 * contributors may be used to endorse or promote products derived from | |
| 17 * this software without specific prior written permission. | |
| 18 * | |
| 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | |
| 20 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
| 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE | |
| 23 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
| 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
| 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |
| 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | |
| 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
| 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF | |
| 29 * THE POSSIBILITY OF SUCH DAMAGE. | |
| 30 --> | |
| 31 <body> | |
| 32 Provides some useful class and method adapters. <i>The preferred way of using | |
| 33 these adapters is by chaining them together and to custom adapters (instead of | |
| 34 inheriting from them)</i>. Indeed this approach provides more combination | |
| 35 possibilities than inheritance. For instance, suppose you want to implement an | |
| 36 adapter MyAdapter than needs sorted local variables and intermediate stack map | |
| 37 frame values taking into account the local variables sort. By using inheritance, | |
| 38 this would require MyAdapter to extend AnalyzerAdapter, itself extending | |
| 39 LocalVariablesSorter. But AnalyzerAdapter is not a subclass of | |
| 40 LocalVariablesSorter, so this is not possible. On the contrary, by using | |
| 41 delegation, you can make LocalVariablesSorter delegate to AnalyzerAdapter, | |
| 42 itself delegating to MyAdapter. In this case AnalyzerAdapter computes | |
| 43 intermediate frames based on the output of LocalVariablesSorter, and MyAdapter | |
| 44 can add new locals by calling the newLocal method on LocalVariablesSorter, and | |
| 45 can get the stack map frame state before each instruction by reading the locals | |
| 46 and stack fields in AnalyzerAdapter (this requires references from MyAdapter | |
| 47 back to LocalVariablesSorter and AnalyzerAdapter). | |
| 48 </body> |