Package org.objectweb.asm

Examples of org.objectweb.asm.ClassWriter

42
43
44
45
46
47
48
49
50
51
52
* @author Eric Bruneton
*/
public class ChangeVersionAdapterTest extends AbstractTestCase {

  public void test() throws Exception {
    ClassWriter cw = new ClassWriter(0);
    CheckClassAdapter ca = new CheckClassAdapter(cw);
    ChangeVersionAdapter cv = new ChangeVersionAdapter(ca);
    generateBasicClass(cv);
    defineClass("C", cw.toByteArray());
  }
View Full Code Here
43
44
45
46
47
48
49
50
51
52
53
54
* @author Eric Bruneton
*/
public class AddTimerTransformerTest extends AddTimerAdapterTest {

  public void test() throws Exception {
    ClassWriter cw = new ClassWriter(0);
    CheckClassAdapter ca = new CheckClassAdapter(cw);
    ClassNode cn = generateBasicClass();
    new AddTimerTransformer(null).transform(cn);
    cn.accept(ca);
    checkClass(defineClass("C", cw.toByteArray()));
  }
View Full Code Here
44
45
46
47
48
49
50
51
52
53
54
55
* @author Eric Bruneton
*/
public class AddAnnotationAdapterTest extends AbstractTestCase {

  public void test() throws Exception {
    ClassWriter cw = new ClassWriter(0);
    CheckClassAdapter ca = new CheckClassAdapter(cw);
    AddAnnotationAdapter aa = new AddAnnotationAdapter(ca,
        "Ljava/lang/Deprecated;");
    generateBasicClass(aa);
    checkClass(defineClass("C", cw.toByteArray()));
  }
View Full Code Here
44
45
46
47
48
49
50
51
52
53
54
55
56
57
* @author Eric Bruneton
*/
public class RemoveAnnotationAdapterTest extends AbstractTestCase {

  public void test() throws Exception {
    ClassWriter cw = new ClassWriter(0);
    CheckClassAdapter ca = new CheckClassAdapter(cw);
    RemoveAnnotationAdapter ra = new RemoveAnnotationAdapter(ca,
        "Ljava/lang/Deprecated;");
    AddAnnotationAdapter aa = new AddAnnotationAdapter(ra,
        "Ljava/lang/Deprecated;");
    generateBasicClass(aa);
    checkClass(defineClass("C", cw.toByteArray()));
  }
View Full Code Here
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
    for (int i = 0; i < 10; ++i) {
      long t = System.currentTimeMillis();
      for (int j = 0; j < classes.size(); ++j) {
        byte[] b = (byte[]) classes.get(j);
        ClassWriter cw = new ClassWriter(0);
        new ClassReader(b).accept(cw, 0);
        cw.toByteArray();
      }
      t = System.currentTimeMillis() - t;
      times[1] = Math.min(t, times[1]);
      System.out.println("Time to deserialize and reserialize "
          + classes.size() + " classes = " + t + " ms");
    }

    for (int i = 0; i < 10; ++i) {
      long t = System.currentTimeMillis();
      for (int j = 0; j < classes.size(); ++j) {
        byte[] b = (byte[]) classes.get(j);
        ClassReader cr = new ClassReader(b);
        ClassWriter cw = new ClassWriter(cr, 0);
        cr.accept(cw, 0);
        cw.toByteArray();
      }
      t = System.currentTimeMillis() - t;
      times[2] = Math.min(t, times[2]);
      System.out.println("Time to deserialize and reserialize "
          + classes.size() + " classes with copyPool = " + t + " ms");
    }

    for (int i = 0; i < 10; ++i) {
      long t = System.currentTimeMillis();
      for (int j = 0; j < classes.size(); ++j) {
        byte[] b = (byte[]) classes.get(j);
        ClassWriter cw = new ClassWriter(0);
        ClassVisitor cv = new AddTimerAdapter(cw);
        new ClassReader(b).accept(cv, 0);
        cw.toByteArray();
      }
      t = System.currentTimeMillis() - t;
      times[3] = Math.min(t, times[3]);
      System.out.println("Time to deserialize and reserialize "
          + classes.size() + " classes with AddTimerAdapter = " + t
          + " ms");
    }

    for (int i = 0; i < 10; ++i) {
      long t = System.currentTimeMillis();
      for (int j = 0; j < classes.size(); ++j) {
        byte[] b = (byte[]) classes.get(j);
        ClassReader cr = new ClassReader(b);
        ClassWriter cw = new ClassWriter(cr, 0);
        ClassVisitor cv = new AddTimerAdapter(cw);
        cr.accept(cv, 0);
        cw.toByteArray();
      }
      t = System.currentTimeMillis() - t;
      times[4] = Math.min(t, times[4]);
      System.out
          .println("Time to deserialize and reserialize "
              + classes.size()
              + " classes with AddTimerAdapter and copyPool = " + t
              + " ms");
    }

    for (int i = 0; i < 10; ++i) {
      long t = System.currentTimeMillis();
      for (int j = 0; j < classes.size(); ++j) {
        byte[] b = (byte[]) classes.get(j);
        ClassWriter cw = new ClassWriter(0);
        ClassVisitor cv = new ClassAdapter(cw) {
          public MethodVisitor visitMethod(int access, String name,
              String desc, String signature, String[] exceptions) {
            return new RemoveGetFieldPutFieldAdapter(cv.visitMethod(
                access, name, desc, signature, exceptions));
          }
        };
        new ClassReader(b).accept(cv, 0);
        cw.toByteArray();
      }
      t = System.currentTimeMillis() - t;
      times[5] = Math.min(t, times[5]);
      System.out.println("Time to deserialize and reserialize "
          + classes.size()
          + " classes with RemoveGetFieldPutFieldAdapter = " + t
          + " ms");
    }

    for (int i = 0; i < 10; ++i) {
      long t = System.currentTimeMillis();
      for (int j = 0; j < classes.size(); ++j) {
        byte[] b = (byte[]) classes.get(j);
        ClassReader cr = new ClassReader(b);
        ClassWriter cw = new ClassWriter(cr, 0);
        ClassVisitor cv = new ClassAdapter(cw) {
          public MethodVisitor visitMethod(int access, String name,
              String desc, String signature, String[] exceptions) {
            return new RemoveGetFieldPutFieldAdapter(cv.visitMethod(
                access, name, desc, signature, exceptions));
          }
        };
        cr.accept(cv, 0);
        cw.toByteArray();
      }
      t = System.currentTimeMillis() - t;
      times[6] = Math.min(t, times[6]);
      System.out
          .println("Time to deserialize and reserialize "
              + classes.size()
              + " classes with RemoveGetFieldPutFieldAdapter and copyPool = "
              + t + " ms");
    }

    for (int i = 0; i < 10; ++i) {
      long t = System.currentTimeMillis();
      for (int j = 0; j < classes.size(); ++j) {
        byte[] b = (byte[]) classes.get(j);
        ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS);
        new ClassReader(b).accept(cw, 0);
        cw.toByteArray();
      }
      t = System.currentTimeMillis() - t;
      times[7] = Math.min(t, times[7]);
      System.out
          .println("Time to deserialize and reserialize "
              + classes.size() + " classes with computeMaxs = " + t
              + " ms");
    }

    for (int i = 0; i < 10; ++i) {
      int errors = 0;
      long t = System.currentTimeMillis();
      for (int j = 0; j < classes.size(); ++j) {
        byte[] b = (byte[]) classes.get(j);
        ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_FRAMES);
        try {
          new ClassReader(b).accept(cw, 0);
        } catch (Throwable e) {
          ++errors;
        }
        cw.toByteArray();
      }
      t = System.currentTimeMillis() - t;
      times[8] = Math.min(t, times[8]);
      System.out.println("Time to deserialize and reserialize "
          + classes.size() + " classes with computeFrames = " + t
          + " ms (" + errors + " errors)");
    }

    System.out.println();

    for (int i = 0; i < 10; ++i) {
      long t = System.currentTimeMillis();
      for (int j = 0; j < classes.size(); ++j) {
        byte[] b = (byte[]) classes.get(j);
        new ClassReader(b).accept(new ClassNode(), 0);
      }
      t = System.currentTimeMillis() - t;
      times[9] = Math.min(t, times[9]);
      System.out.println("Time to deserialize " + classes.size()
          + " classes with tree package = " + t + " ms");
    }

    for (int i = 0; i < 10; ++i) {
      long t = System.currentTimeMillis();
      for (int j = 0; j < classes.size(); ++j) {
        byte[] b = (byte[]) classes.get(j);
        ClassWriter cw = new ClassWriter(0);
        ClassNode cn = new ClassNode();
        new ClassReader(b).accept(cn, 0);
        cn.accept(cw);
        cw.toByteArray();
      }
      t = System.currentTimeMillis() - t;
      times[10] = Math.min(t, times[10]);
      System.out.println("Time to deserialize and reserialize "
          + classes.size() + " classes with tree package = " + t
          + " ms");
    }

    for (int i = 0; i < 10; ++i) {
      long t = System.currentTimeMillis();
      for (int j = 0; j < classes.size(); ++j) {
        byte[] b = (byte[]) classes.get(j);
        ClassWriter cw = new ClassWriter(0);
        ClassNode cn = new ClassNode();
        new ClassReader(b).accept(cn, 0);
        new AddTimerTransformer(null).transform(cn);
        cn.accept(cw);
        cw.toByteArray();
      }
      t = System.currentTimeMillis() - t;
      times[11] = Math.min(t, times[11]);
      System.out.println("Time to deserialize and reserialize "
          + classes.size() + " classes with AddTimerTransformer = " + t
          + " ms");
    }

    for (int i = 0; i < 10; ++i) {
      long t = System.currentTimeMillis();
      for (int j = 0; j < classes.size(); ++j) {
        byte[] b = (byte[]) classes.get(j);
        ClassWriter cw = new ClassWriter(0);
        ClassNode cn = new ClassNode();
        new ClassReader(b).accept(cn, 0);
        Iterator it = cn.methods.iterator();
        while (it.hasNext()) {
          MethodNode mn = (MethodNode) it.next();
          new RemoveGetFieldPutFieldTransformer(null).transform(mn);
        }
        cn.accept(cw);
        cw.toByteArray();
      }
      t = System.currentTimeMillis() - t;
      times[12] = Math.min(t, times[12]);
      System.out.println("Time to deserialize and reserialize "
          + classes.size()
View Full Code Here
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
* @author Eric Bruneton
*/
public class ComparableGenerator {

  public byte[] generate(PrintWriter printWriter) {
    ClassWriter cw = new ClassWriter(0);
    TraceClassVisitor tcv = new TraceClassVisitor(cw, printWriter);
    CheckClassAdapter cv = new CheckClassAdapter(tcv);
    cv.visit(V1_5, ACC_PUBLIC + ACC_ABSTRACT + ACC_INTERFACE,
        "pkg/Comparable", null, "java/lang/Object",
        new String[] { "pkg/Mesurable" });
    cv.visitSource("Comparable.java", null);
    cv.visitField(ACC_PUBLIC + ACC_FINAL + ACC_STATIC, "LESS", "I",
        null, new Integer(-1)).visitEnd();
    cv.visitField(ACC_PUBLIC + ACC_FINAL + ACC_STATIC, "EQUAL", "I",
        null, new Integer(0)).visitEnd();
    cv.visitField(ACC_PUBLIC + ACC_FINAL + ACC_STATIC, "GREATER", "I",
        null, new Integer(1)).visitEnd();
    cv.visitMethod(ACC_PUBLIC + ACC_ABSTRACT, "compareTo",
        "(Ljava/lang/Object;)I", null, null).visitEnd();
    cv.visitEnd();
    byte[] b = cw.toByteArray();
    return b;
  }
View Full Code Here
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
* @author Eric Bruneton
*/
public class BeanGenerator2 {

  public byte[] generate(PrintWriter printWriter) {
    ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS);
    TraceClassVisitor tcv = new TraceClassVisitor(cw, printWriter);
    CheckClassAdapter cv = new CheckClassAdapter(tcv);
    cv.visit(V1_6, ACC_PUBLIC, "pkg/Bean", null, "java/lang/Object",
        null);
    cv.visitSource("Bean.java", null);
    FieldVisitor fv = cv.visitField(ACC_PRIVATE, "f", "I", null, null);
    if (fv != null) {
      fv.visitEnd();
    }
    MethodVisitor mv;
    mv = cv.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null);
    if (mv != null) {
      Method m = Method.getMethod("void <init>()");
      GeneratorAdapter ga = new GeneratorAdapter(ACC_PUBLIC, m, mv);
      ga.visitCode();
      ga.loadThis();
      ga.invokeConstructor(Type.getType("Ljava/lang/Object;"), m);
      ga.returnValue();
      ga.endMethod();
    }
    mv = cv.visitMethod(ACC_PUBLIC, "getF", "()I", null, null);
    if (mv != null) {
      Type bean = Type.getType("Lpkg/Bean;");
      Method m = Method.getMethod("int getF()");
      GeneratorAdapter ga = new GeneratorAdapter(ACC_PUBLIC, m, mv);
      ga.visitCode();
      ga.loadThis();
      ga.getField(bean, "f", Type.INT_TYPE);
      ga.returnValue();
      ga.endMethod();
    }
    mv = cv.visitMethod(ACC_PUBLIC, "setF", "(I)V", null, null);
    if (mv != null) {
      Type bean = Type.getType("Lpkg/Bean;");
      Method m = Method.getMethod("void setF(int)");
      GeneratorAdapter ga = new GeneratorAdapter(ACC_PUBLIC, m, mv);
      ga.visitCode();
      ga.loadThis();
      ga.loadArg(0);
      ga.putField(bean, "f", Type.INT_TYPE);
      ga.returnValue();
      ga.endMethod();
    }
    mv = cv.visitMethod(ACC_PUBLIC, "checkAndSetF", "(I)V", null, null);
    if (mv != null) {
      Type bean = Type.getType("Lpkg/Bean;");
      Method m = Method.getMethod("void checkAndSetF(int)");
      GeneratorAdapter ga = new GeneratorAdapter(ACC_PUBLIC, m, mv);
      ga.visitCode();
      ga.loadArg(0);
      Label label = new Label();
      ga.ifZCmp(GeneratorAdapter.LT, label);
      ga.loadThis();
      ga.loadArg(0);
      ga.putField(bean, "f", Type.INT_TYPE);
      Label end = new Label();
      ga.goTo(end);
      ga.mark(label);
      ga.throwException(Type.getType(IllegalArgumentException.class),
          "f");
      ga.mark(end);
      ga.returnValue();
      ga.endMethod();
    }
    cv.visitEnd();
    byte[] b = cw.toByteArray();
    return b;
  }
View Full Code Here
65
66
67
68
69
70
71
72
73
        "EQUAL", "I", null, new Integer(0)));
    cn.fields.add(new FieldNode(ACC_PUBLIC + ACC_FINAL + ACC_STATIC,
        "GREATER", "I", null, new Integer(1)));
    cn.methods.add(new MethodNode(ACC_PUBLIC + ACC_ABSTRACT,
        "compareTo", "(Ljava/lang/Object;)I", null, null));
    ClassWriter cw = new ClassWriter(0);
    cn.accept(cw);
    return cw.toByteArray();
  }
View Full Code Here
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
*/
public class RemoveAnnotationTransformerTest extends
    RemoveAnnotationAdapterTest {

  public void test() throws Exception {
    ClassWriter cw = new ClassWriter(0);
    CheckClassAdapter ca = new CheckClassAdapter(cw);
    ClassNode cn = generateBasicClass();
    ClassTransformer ct = null;
    ct = new RemoveAnnotationTransformer(ct, "Ljava/lang/Deprecated;");
    ct = new AddAnnotationTransformer(ct, "Ljava/lang/Deprecated;");
    ct.transform(cn);
    cn.accept(ca);
    checkClass(defineClass("C", cw.toByteArray()));
  }
View Full Code Here
135
136
137
138
139
140
141
142
143
    il.add(end);
    il.add(new FrameNode(F_SAME, 0, null, 0, null));
    il.add(new InsnNode(RETURN));
    mn.maxStack = 2;
    mn.maxLocals = 2;
    ClassWriter cw = new ClassWriter(0);
    cn.accept(cw);
    return cw.toByteArray();
  }
View Full Code Here
TOP

Related Classes of org.objectweb.asm.ClassWriter

  • ch.ethz.iks.r_osgi.impl.ProxyGenerator
  • co.paralleluniverse.data.record.DynamicGeneratedRecord
  • co.paralleluniverse.fibers.instrument.JavaAgent
  • co.paralleluniverse.fibers.instrument.QuasarInstrumentor
  • cofh.asm.ASMCore
  • com.artemis.weaver.packed.PackedStubs
  • com.esotericsoftware.reflectasm.ConstructorAccess
  • com.esotericsoftware.reflectasm.FieldAccess
  • com.esotericsoftware.reflectasm.MethodAccess
  • com.facebook.presto.operator.aggregation.state.StateCompiler
    • Copyright © 2018 www.massapicom. All rights reserved.
    All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.