1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
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
|
/*******************************************************************************
* Copyright (c) 2009, 2016 Mountainminds GmbH & Co. KG and Contributors
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Marc R. Hoffmann - initial API and implementation
*
*******************************************************************************/
package org.jacoco.core.internal.instr;
import org.jacoco.core.internal.flow.ClassProbesVisitor;
import org.jacoco.core.internal.flow.MethodProbesVisitor;
import org.objectweb.asm.ClassVisitor;
import org.objectweb.asm.FieldVisitor;
import org.objectweb.asm.MethodVisitor;
/**
* Adapter that instruments a class for coverage tracing.
*/
public class ClassInstrumenter extends ClassProbesVisitor {
private final IProbeArrayStrategy probeArrayStrategy;
private String className;
/**
* Emits a instrumented version of this class to the given class visitor.
*
* @param probeArrayStrategy
* this strategy will be used to access the probe array
* @param cv
* next delegate in the visitor chain will receive the
* instrumented class
*/
public ClassInstrumenter(final IProbeArrayStrategy probeArrayStrategy,
final ClassVisitor cv) {
super(cv);
this.probeArrayStrategy = probeArrayStrategy;
}
@Override
public void visit(final int version, final int access, final String name,
final String signature, final String superName,
final String[] interfaces) {
this.className = name;
super.visit(version, access, name, signature, superName, interfaces);
}
@Override
public FieldVisitor visitField(final int access, final String name,
final String desc, final String signature, final Object value) {
InstrSupport.assertNotInstrumented(name, className);
return super.visitField(access, name, desc, signature, value);
}
@Override
public MethodProbesVisitor visitMethod(final int access, final String name,
final String desc, final String signature, final String[] exceptions) {
InstrSupport.assertNotInstrumented(name, className);
final MethodVisitor mv = cv.visitMethod(access, name, desc, signature,
exceptions);
if (mv == null) {
return null;
}
final MethodVisitor frameEliminator = new DuplicateFrameEliminator(mv);
final ProbeInserter probeVariableInserter = new ProbeInserter(access,
desc, frameEliminator, probeArrayStrategy);
return new MethodInstrumenter(probeVariableInserter,
probeVariableInserter);
}
@Override
public void visitTotalProbeCount(final int count) {
probeArrayStrategy.addMembers(cv, count);
}
}
|
