下面列出了org.objectweb.asm.util.Textifier#print ( ) 实例代码,或者点击链接到github查看源代码,也可以在右侧发表评论。
@Override
public void visitEnd() {
try {
accept(inner);
super.visitEnd();
} catch(Exception e){
Textifier t = new Textifier();
accept(new TraceMethodVisitor(t));
StringBuilderWriter sw = new StringBuilderWriter();
PrintWriter pw = new PrintWriter(sw);
t.print(pw);
pw.flush();
String bytecode = sw.getBuilder().toString();
logger.error(String.format("Failure while rendering method %s, %s, %s. ByteCode:\n %s", name, desc, signature, bytecode), e);
throw new RuntimeException(String.format("Failure while rendering method %s, %s, %s. ByteCode:\n %s", name, desc, signature, bytecode), e);
}
}
public String toString() {
Textifier t = new Textifier();
accept(new TraceMethodVisitor(t));
StringWriter sw = new StringWriter();
t.print(new PrintWriter(sw));
return sw.toString();
}
@Override
public MethodVisitor visitMethod(final int access, final String name,
final String desc, final String signature, final String[] exceptions)
{
// Unused?
/*
final MethodVisitor mv = super.visitMethod(access, name, desc,
signature, exceptions);
*/
return new MethodNode(Opcodes.ASM5, access, name, desc, signature,
exceptions)
{
@Override
public void visitEnd()
{
super.visitEnd();
try {
final BasicInterpreter basicInterpreter
= new BasicInterpreter();
final Analyzer<BasicValue> analyzer
= new Analyzer<>(basicInterpreter);
final AbstractInsnNode[] nodes = instructions.toArray();
final Frame<BasicValue>[] frames
= analyzer.analyze(className, this);
int areturn = -1;
for (int i = nodes.length -1; i >= 0; i--)
{
if (nodes[i].getOpcode() == Opcodes.ARETURN) {
areturn = i;
System.out.println(className + "." + name + desc);
System.out.println("Found areturn at: " + i);
} else if (areturn != -1
&& nodes[i].getOpcode() != -1
&& frames[i].getStackSize() == 0) {
System.out.println("Found start of block at: " + i);
final InsnList list = new InsnList();
for (int j = i; j <= areturn; j++)
list.add(nodes[j]);
final Textifier textifier = new Textifier();
final PrintWriter pw = new PrintWriter(System.out);
list.accept(new TraceMethodVisitor(textifier));
textifier.print(pw);
pw.flush();
System.out.println("\n\n");
areturn = -1;
}
}
}
catch (AnalyzerException e) {
e.printStackTrace();
}
if (mv != null)
accept(mv);
}
};
}