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1
30 package org.objectweb.asm.tree.analysis;
31
32 import org.objectweb.asm.ClassReader;
33 import org.objectweb.asm.ClassWriterComputeMaxsUnitTest;
34 import org.objectweb.asm.MethodVisitor;
35 import org.objectweb.asm.commons.EmptyVisitor;
36 import org.objectweb.asm.tree.MethodNode;
37
38
43 public class AnalyzerUnitTest extends ClassWriterComputeMaxsUnitTest {
44
45 protected boolean isComputeMaxs() {
46 return false;
47 }
48
49 protected void assertMaxs(final int maxStack, final int maxLocals) {
50 mv.visitMaxs(maxStack, maxLocals);
51 mv.visitEnd();
52 cw.visitEnd();
53 byte[] b = cw.toByteArray();
54 ClassReader cr = new ClassReader(b);
55 cr.accept(new EmptyVisitor() {
56 public MethodVisitor visitMethod(
57 final int access,
58 final String  name,
59 final String desc,
60 final String signature,
61 final String [] exceptions)
62 {
63 if (name.equals("m")) {
64 return new MethodNode(access,
65 name,
66 desc,
67 signature,
68 exceptions)
69 {
70 public void visitEnd() {
71 Analyzer a = new Analyzer(new BasicInterpreter());
72 try {
73 Frame[] frames = a.analyze("C", this);
74 int mStack = 0;
75 int mLocals = 0;
76 for (int i = 0; i < frames.length; ++i) {
77 if (frames[i] != null) {
78 mStack = Math.max(mStack,
79 frames[i].getStackSize());
80 mLocals = Math.max(mLocals,
81 frames[i].getLocals());
82 }
83 }
84 assertEquals("maxStack", maxStack, mStack);
85 assertEquals("maxLocals", maxLocals, mLocals);
86 } catch (Exception e) {
87 fail(e.getMessage());
88 }
89 }
90 };
91 } else {
92 return new EmptyVisitor();
93 }
94 }
95 }, 0);
96
97 try {
98 TestClassLoader loader = new TestClassLoader();
99 Class c = loader.defineClass("C", b);
100 c.newInstance();
101 } catch (Throwable t) {
102 fail(t.getMessage());
103 }
104 }
105
106 protected void assertGraph(final String graph) {
107 }
108 }
109
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