Examples with ClassNode org.apache.tapestry5.internal.plastic.asm.tree.ClassNode used on opensource projects

Example 1 with ClassNode

use of org.apache.tapestry5.internal.plastic.asm.tree.ClassNode in project tapestry-5 by apache.

the class CheckClassAdapter method verify.

/**
 * Checks the given class.
 *
 * @param classReader the class to be checked.
 * @param loader a <code>ClassLoader</code> which will be used to load referenced classes. May be
 *     {@literal null}.
 * @param printResults whether to print the results of the bytecode verification.
 * @param printWriter where the results (or the stack trace in case of error) must be printed.
 */
public static void verify(final ClassReader classReader, final ClassLoader loader, final boolean printResults, final PrintWriter printWriter) {
    ClassNode classNode = new ClassNode();
    classReader.accept(new CheckClassAdapter(/*latest*/
    Opcodes.ASM10_EXPERIMENTAL, classNode, false) {
    }, ClassReader.SKIP_DEBUG);
    Type syperType = classNode.superName == null ? null : Type.getObjectType(classNode.superName);
    List<MethodNode> methods = classNode.methods;
    List<Type> interfaces = new ArrayList<>();
    for (String interfaceName : classNode.interfaces) {
        interfaces.add(Type.getObjectType(interfaceName));
    }
    for (MethodNode method : methods) {
        SimpleVerifier verifier = new SimpleVerifier(Type.getObjectType(classNode.name), syperType, interfaces, (classNode.access & Opcodes.ACC_INTERFACE) != 0);
        Analyzer<BasicValue> analyzer = new Analyzer<>(verifier);
        if (loader != null) {
            verifier.setClassLoader(loader);
        }
        try {
            analyzer.analyze(classNode.name, method);
        } catch (AnalyzerException e) {
            e.printStackTrace(printWriter);
        }
        if (printResults) {
            printAnalyzerResult(method, analyzer, printWriter);
        }
    }
    printWriter.flush();
}

Example 2 with ClassNode

use of org.apache.tapestry5.internal.plastic.asm.tree.ClassNode in project tapestry-5 by apache.

the class PlasticClassPool method toBytecode.

private byte[] toBytecode(ClassNode classNode) {
    ClassWriter writer = new ClassWriter(ClassWriter.COMPUTE_FRAMES | ClassWriter.COMPUTE_MAXS);
    classNode.accept(writer);
    return writer.toByteArray();
}

Example 3 with ClassNode

use of org.apache.tapestry5.internal.plastic.asm.tree.ClassNode in project tapestry-5 by apache.

the class PlasticClassPool method readClassNode.

static ClassNode readClassNode(String className, ClassLoader classLoader) throws IOException {
    ClassNode classNode = new ClassNode();
    final String location = PlasticInternalUtils.toInternalName(className) + ".class";
    InputStream inputStream = classLoader.getResourceAsStream(location);
    BufferedInputStream bis = new BufferedInputStream(inputStream);
    ClassReader classReader = new ClassReader(inputStream);
    inputStream.close();
    bis.close();
    classReader.accept(classNode, 0);
    return classNode;
}

Example 4 with ClassNode

use of org.apache.tapestry5.internal.plastic.asm.tree.ClassNode in project tapestry-5 by apache.

the class PlasticInternalUtils method convertBytecodeToClassNode.

public static ClassNode convertBytecodeToClassNode(byte[] bytecode) {
    ClassReader cr = new ClassReader(bytecode);
    ClassNode result = new ClassNode();
    ClassVisitor adapter = new ClassVisitor(Opcodes.ASM9, result) {

        @Override
        public MethodVisitor visitMethod(int access, String name, String desc, String signature, String[] exceptions) {
            MethodVisitor delegate = super.visitMethod(access, name, desc, signature, exceptions);
            return new JSRInlinerAdapter(delegate, access, name, desc, signature, exceptions);
        }
    };
    cr.accept(adapter, 0);
    return result;
}

Example 5 with ClassNode

use of org.apache.tapestry5.internal.plastic.asm.tree.ClassNode in project tapestry-5 by apache.

the class PlasticInternalUtils method dissasembleBytecode.

public static String dissasembleBytecode(ClassNode classNode) {
    StringWriter stringWriter = new StringWriter();
    PrintWriter writer = new PrintWriter(stringWriter);
    TraceClassVisitor visitor = new TraceClassVisitor(writer);
    classNode.accept(visitor);
    writer.close();
    return stringWriter.toString();
}