01: /***
02: * ASM Guide
03: * Copyright (c) 2007 Eric Bruneton
04: * All rights reserved.
05: *
06: * Redistribution and use in source and binary forms, with or without
07: * modification, are permitted provided that the following conditions
08: * are met:
09: * 1. Redistributions of source code must retain the above copyright
10: * notice, this list of conditions and the following disclaimer.
11: * 2. Redistributions in binary form must reproduce the above copyright
12: * notice, this list of conditions and the following disclaimer in the
13: * documentation and/or other materials provided with the distribution.
14: * 3. Neither the name of the copyright holders nor the names of its
15: * contributors may be used to endorse or promote products derived from
16: * this software without specific prior written permission.
17: *
18: * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
19: * AND 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 COPYRIGHT OWNER OR CONTRIBUTORS BE
22: * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
23: * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
24: * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
25: * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
26: * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
27: * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
28: * THE POSSIBILITY OF SUCH DAMAGE.
29: */package ch3.sec2;
30:
31: import static org.objectweb.asm.Opcodes.ALOAD;
32: import static org.objectweb.asm.Opcodes.GETFIELD;
33: import static org.objectweb.asm.Opcodes.IRETURN;
34: import static org.objectweb.asm.Opcodes.PUTFIELD;
35:
36: import org.objectweb.asm.ClassAdapter;
37: import org.objectweb.asm.ClassVisitor;
38: import org.objectweb.asm.MethodVisitor;
39: import org.objectweb.asm.util.TraceMethodVisitor;
40:
41: import util.AbstractTestCase;
42:
43: /**
44: * ASM Guide example test class.
45: *
46: * @author Eric Bruneton
47: */
48: public class RemoveGetFieldPutFieldAdapterTest extends AbstractTestCase {
49:
50: public void test() {
51: TraceMethodVisitor tmv = new TraceMethodVisitor(null);
52: MethodVisitor mv = new RemoveGetFieldPutFieldAdapter(tmv);
53: mv.visitCode();
54: mv.visitVarInsn(ALOAD, 0);
55: mv.visitVarInsn(ALOAD, 0);
56: mv.visitVarInsn(ALOAD, 0);
57: mv.visitFieldInsn(GETFIELD, "C", "f", "I");
58: mv.visitFieldInsn(PUTFIELD, "C", "f", "I");
59: mv.visitFieldInsn(GETFIELD, "C", "f", "I");
60: mv.visitInsn(IRETURN);
61: mv.visitMaxs(0, 0);
62: mv.visitEnd();
63: checkMethod(tmv);
64: }
65:
66: protected void checkMethod(TraceMethodVisitor tmv) {
67: TraceMethodVisitor mv = new TraceMethodVisitor(null);
68: mv.visitCode();
69: mv.visitVarInsn(ALOAD, 0);
70: mv.visitFieldInsn(GETFIELD, "C", "f", "I");
71: mv.visitInsn(IRETURN);
72: mv.visitMaxs(0, 0);
73: mv.visitEnd();
74: assertEquals(mv, tmv);
75: }
76:
77: @Override
78: protected ClassVisitor getClassAdapter(ClassVisitor cv) {
79: return new ClassAdapter(cv) {
80: @Override
81: public MethodVisitor visitMethod(int access, String name,
82: String desc, String signature, String[] exceptions) {
83: return new RemoveGetFieldPutFieldAdapter(cv
84: .visitMethod(access, name, desc, signature,
85: exceptions));
86: }
87: };
88: }
89: }
|