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
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
|
// ASM: a very sm14all and fast Java bytecode manipulation framework
// Copyright (c) 2000-2011 INRIA, France Telecom
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
// 1. Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// 2. Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
// 3. Neither the name of the copyright holders nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
// THE POSSIBILITY OF SUCH DAMAGE.
package org.objectweb.asm.util;
import java.util.Arrays;
import org.objectweb.asm.Label;
import org.objectweb.asm.Opcodes;
import org.objectweb.asm.tree.FrameNode;
import org.objectweb.asm.tree.MethodNode;
/**
* A builder of {@link MethodNode}, to construct test cases for unit tests.
*
* @author Eric Bruneton
*/
final class MethodNodeBuilder {
private final MethodNode methodNode;
MethodNodeBuilder() {
this(/* maxStack = */ 10, /* maxLocals = */ 10);
}
MethodNodeBuilder(final int maxStack, final int maxLocals) {
methodNode = new MethodNode(Opcodes.ACC_PUBLIC, "m", "()V", null, null);
methodNode.maxStack = maxStack;
methodNode.maxLocals = maxLocals;
methodNode.visitCode();
}
MethodNodeBuilder nop() {
methodNode.visitInsn(Opcodes.NOP);
return this;
}
MethodNodeBuilder iconst_0() {
methodNode.visitInsn(Opcodes.ICONST_0);
return this;
}
MethodNodeBuilder vreturn() {
methodNode.visitInsn(Opcodes.RETURN);
return this;
}
MethodNodeBuilder label(final Label label) {
methodNode.visitLabel(label);
return this;
}
MethodNodeBuilder go(final Label label) {
methodNode.visitJumpInsn(Opcodes.GOTO, label);
return this;
}
MethodNodeBuilder jsr(final Label label) {
methodNode.visitJumpInsn(Opcodes.JSR, label);
return this;
}
MethodNodeBuilder ret(final int varIndex) {
methodNode.visitVarInsn(Opcodes.RET, varIndex);
return this;
}
MethodNodeBuilder ifne(final Label label) {
methodNode.visitJumpInsn(Opcodes.IFNE, label);
return this;
}
MethodNodeBuilder frame(final int type, final Object[] local, final Object[] stack) {
FrameNode frameNode = new FrameNode(Opcodes.F_NEW, 0, null, 0, null);
frameNode.type = type;
frameNode.local = local == null ? null : Arrays.asList(local);
frameNode.stack = stack == null ? null : Arrays.asList(stack);
methodNode.instructions.add(frameNode);
return this;
}
MethodNode build() {
methodNode.visitEnd();
return methodNode;
}
}
|
