Example usage for org.objectweb.asm.tree ClassNode ClassNode

List of usage examples for org.objectweb.asm.tree ClassNode ClassNode

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In this page you can find the example usage for org.objectweb.asm.tree ClassNode ClassNode.

Prototype

public ClassNode()

Source Link

Document

Constructs a new ClassNode .

Usage

From source file:org.evosuite.instrumentation.DescriptorMapping.java

License:Open Source License

private boolean isOutsideField(String className, String fieldName, String desc) {
    Set<String> visited = new HashSet<String>();
    Queue<String> parents = new LinkedList<String>();
    parents.add(className);/*from   w ww  .  j  ava 2s . c  om*/

    while (!parents.isEmpty()) {
        String name = parents.poll();
        if (name == null)
            continue;

        visited.add(name);
        logger.info("Checking class {} while looking for definition of field {}", name, fieldName);

        ClassReader reader;
        try {
            reader = new ClassReader(name);
            ClassNode parent = new ClassNode();
            reader.accept(parent, ClassReader.EXPAND_FRAMES);

            boolean isInside = isInside(parent.name);

            //            boolean isInside = parent.name.startsWith(Properties.PROJECT_PREFIX.replace(".",
            //                                                                                        "/"))
            //                    | parent.name.startsWith(Properties.TARGET_CLASS_PREFIX.replace(".",
            //                                                                                    "/"));

            for (Object o : parent.fields) {
                FieldNode mn2 = (FieldNode) o;
                if (mn2.name.equals(fieldName) && mn2.desc.equals(desc)) {
                    //if ((mn2.access & Opcodes.ACC_SYNTHETIC) == Opcodes.ACC_SYNTHETIC) {
                    //   logger.info("Not transforming synthetic field " + mn2.name);
                    //   return true;
                    //}
                    if (!isInside) {
                        logger.info("Field {} was defined outside the test package - {}", name, parent.name);
                        return true;
                    } else {
                        logger.info("Field {} was defined inside the test package {}", name, parent.name);
                        return false;

                    }
                }
            }
            for (Object o : parent.interfaces) {
                String par = (String) o;
                if (!visited.contains(par) && !parents.contains(par)) {
                    parents.add(par);
                }
            }
            if (!visited.contains(parent.superName) && !parents.contains(parent.superName)) {
                parents.add(parent.superName);
            }
        } catch (IOException e) {
            logger.info("Error reading class {}", name);
        }
    }

    return false;
}

From source file:org.evosuite.instrumentation.testability.DescriptorMapping.java

License:Open Source License

private boolean isOutsideMethod(String className, String methodName, String desc) {
    Set<String> visited = new HashSet<String>();
    Queue<String> parents = new LinkedList<String>();
    parents.add(className);//from www  .  jav  a  2s . c o  m

    while (!parents.isEmpty()) {
        String name = parents.poll();
        if (name == null)
            continue;

        visited.add(name);
        logger.info("Visiting class " + name + " while looking for source of " + className + "." + methodName);
        ClassReader reader;
        try {
            reader = new ClassReader(
                    ResourceList.getInstance(TestGenerationContext.getInstance().getClassLoaderForSUT())
                            .getClassAsStream(name));
            ClassNode parent = new ClassNode();
            reader.accept(parent, ClassReader.EXPAND_FRAMES);

            boolean isInside = isInside(parent.name);

            //boolean isInside = parent.name.startsWith(Properties.PROJECT_PREFIX.replace(".",
            //                                                                            "/"))
            //        || (!Properties.TARGET_CLASS_PREFIX.isEmpty() && parent.name.startsWith(Properties.TARGET_CLASS_PREFIX.replace(".",
            //                                                                                                                                   "/")));

            logger.info("Checking " + parent.name);
            for (Object o : parent.methods) {
                MethodNode mn2 = (MethodNode) o;
                if (mn2.name.equals(methodName) && mn2.desc.equals(desc)) {
                    if (!isInside) {
                        logger.info("Method " + name + " was defined outside the test package");
                        return true;
                    } else {
                        logger.info("Method " + name + " was defined outside the test package");
                        //return false;
                    }
                }
            }

            for (Object o : parent.interfaces) {
                String par = (String) o;
                if (!visited.contains(par) && !parents.contains(par)) {
                    parents.add(par);
                }
            }
            if (!visited.contains(parent.superName) && !parents.contains(parent.superName)) {
                parents.add(parent.superName);
            }
        } catch (IOException e) {
            logger.info("Error reading class " + name);
        }
    }

    return false;
}

From source file:org.evosuite.instrumentation.testability.DescriptorMapping.java

License:Open Source License

private String transformMethodName(String className, String methodName, String desc, String transformedDesc) {
    Set<String> visited = new HashSet<String>();
    Queue<String> parents = new LinkedList<String>();
    parents.add(className);//from   w  w w .  j  ava  2  s  .  c  om

    while (!parents.isEmpty()) {
        String name = parents.poll();
        if (name == null)
            continue;

        visited.add(name);
        logger.info("Visiting class " + name + " while looking for name clashes of " + className + "."
                + methodName + transformedDesc);
        ClassReader reader;
        try {
            reader = new ClassReader(
                    ResourceList.getInstance(TestGenerationContext.getInstance().getClassLoaderForSUT())
                            .getClassAsStream(name));
            ClassNode parent = new ClassNode();
            reader.accept(parent, ClassReader.EXPAND_FRAMES);

            if (originalDesc.containsKey(className + "." + methodName + transformedDesc)) {
                logger.info("Method " + methodName + " has conflicting transformed method");
                return methodName + "_transformed" + (id++);
            }

            for (Object o : parent.methods) {
                MethodNode mn2 = (MethodNode) o;
                //logger.info("Checking " + parent.name + "." + mn2.name + mn2.desc);
                if (mn2.name.equals(methodName) && mn2.desc.equals(transformedDesc)) {
                    logger.info("Method " + methodName + " has conflicting method");
                    if (methodName.equals("<init>"))
                        return null; // TODO: This should be a bit nicer
                    return methodName + "_transformed" + (id++);
                }
            }

            for (Object o : parent.interfaces) {
                String par = (String) o;
                if (!visited.contains(par) && !parents.contains(par)) {
                    parents.add(par);
                }
            }
            if (!visited.contains(parent.superName) && !parents.contains(parent.superName)) {
                parents.add(parent.superName);
            }
        } catch (IOException e) {
            logger.info("Error reading class " + name);
        }
    }

    return methodName;
}

From source file:org.evosuite.instrumentation.testability.DescriptorMapping.java

License:Open Source License

private boolean isOutsideField(String className, String fieldName, String desc) {
    Set<String> visited = new HashSet<String>();
    Queue<String> parents = new LinkedList<String>();
    parents.add(className);//from   w w w. ja  va  2s  .co  m

    while (!parents.isEmpty()) {
        String name = parents.poll();
        if (name == null)
            continue;

        visited.add(name);
        logger.info("Checking class " + name + " while looking for definition of field " + fieldName);

        ClassReader reader;
        try {
            reader = new ClassReader(
                    ResourceList.getInstance(TestGenerationContext.getInstance().getClassLoaderForSUT())
                            .getClassAsStream(name));
            ClassNode parent = new ClassNode();
            reader.accept(parent, ClassReader.EXPAND_FRAMES);

            boolean isInside = isInside(parent.name);

            //            boolean isInside = parent.name.startsWith(Properties.PROJECT_PREFIX.replace(".",
            //                                                                                        "/"))
            //                    | parent.name.startsWith(Properties.TARGET_CLASS_PREFIX.replace(".",
            //                                                                                    "/"));

            for (Object o : parent.fields) {
                FieldNode mn2 = (FieldNode) o;
                if (mn2.name.equals(fieldName) && mn2.desc.equals(desc)) {
                    //if ((mn2.access & Opcodes.ACC_SYNTHETIC) == Opcodes.ACC_SYNTHETIC) {
                    //   logger.info("Not transforming synthetic field " + mn2.name);
                    //   return true;
                    //}
                    if (!isInside) {
                        logger.info("Field " + name + " was defined outside the test package - " + parent.name);
                        return true;
                    } else {
                        logger.info("Field " + name + " was defined inside the test package " + parent.name);
                        return false;

                    }
                }
            }
            for (Object o : parent.interfaces) {
                String par = (String) o;
                if (!visited.contains(par) && !parents.contains(par)) {
                    parents.add(par);
                }
            }
            if (!visited.contains(parent.superName) && !parents.contains(parent.superName)) {
                parents.add(parent.superName);
            }
        } catch (IOException e) {
            logger.info("Error reading class " + name);
        }
    }

    return false;
}

From source file:org.evosuite.instrumentation.testability.TestabilityTransformationClassLoader.java

License:Open Source License

private Class<?> instrumentClass(String fullyQualifiedTargetClass) throws ClassNotFoundException {
    logger.info("Instrumenting class '" + fullyQualifiedTargetClass + "'.");

    try {/*  w ww .  j  a  va 2s  .c o  m*/
        String className = fullyQualifiedTargetClass.replace('.', '/');

        InputStream is = ResourceList.getInstance(TestGenerationContext.getInstance().getClassLoaderForSUT())
                .getClassAsStream(className);
        if (is == null) {
            throw new ClassNotFoundException("Class '" + className + ".class"
                    + "' should be in target project, but could not be found!");
        }

        ClassReader reader = new ClassReader(is);
        ClassNode classNode = new ClassNode();
        reader.accept(classNode, ClassReader.SKIP_FRAMES);
        ClassVisitor cv = new CFGClassAdapter(classLoader, null, className);
        classNode.accept(cv);

        BooleanTestabilityTransformation tt = new BooleanTestabilityTransformation(classNode, this);
        // cv = new TraceClassVisitor(writer, new
        // PrintWriter(System.out));
        //cv = new TraceClassVisitor(cv, new PrintWriter(System.out));
        //cv = new CheckClassAdapter(cv);
        try {
            //tt.transform().accept(cv);
            //if (isTargetClassName(classNameWithDots))
            classNode = tt.transform();
        } catch (Throwable t) {
            throw new Error(t);
        }
        ClassWriter writer = new ClassWriter(ClassWriter.COMPUTE_FRAMES);
        classNode.accept(writer);
        byte[] byteBuffer = writer.toByteArray();

        Class<?> result = defineClass(fullyQualifiedTargetClass, byteBuffer, 0, byteBuffer.length);
        classes.put(fullyQualifiedTargetClass, result);
        logger.info("Keeping class: " + fullyQualifiedTargetClass);
        return result;
    } catch (Throwable t) {
        throw new ClassNotFoundException(t.getMessage(), t);
    }
}

From source file:org.evosuite.instrumentation.TestabilityTransformationClassLoader.java

License:Open Source License

private Class<?> instrumentClass(String fullyQualifiedTargetClass) throws ClassNotFoundException {
    logger.info("Instrumenting class '{}'.", fullyQualifiedTargetClass);

    try {/* ww  w.  j a v a 2 s  .c  o  m*/
        String className = fullyQualifiedTargetClass.replace('.', '/');

        InputStream is = ResourceList.getClassAsStream(className);
        if (is == null) {
            throw new ClassNotFoundException("Class '" + className + ".class"
                    + "' should be in target project, but could not be found!");
        }

        ClassReader reader = new ClassReader(is);
        ClassNode classNode = new ClassNode();
        reader.accept(classNode, ClassReader.SKIP_FRAMES);
        ClassVisitor cv = new CFGClassAdapter(classLoader, null, className);
        classNode.accept(cv);

        BooleanTestabilityTransformation tt = new BooleanTestabilityTransformation(classNode, this);
        // cv = new TraceClassVisitor(writer, new
        // PrintWriter(System.out));
        //cv = new TraceClassVisitor(cv, new PrintWriter(System.out));
        //cv = new CheckClassAdapter(cv);
        try {
            //tt.transform().accept(cv);
            //if (isTargetClassName(classNameWithDots))
            classNode = tt.transform();
        } catch (Throwable t) {
            throw new Error(t);
        }
        ClassWriter writer = new ClassWriter(ClassWriter.COMPUTE_FRAMES);
        classNode.accept(writer);
        byte[] byteBuffer = writer.toByteArray();

        Class<?> result = defineClass(fullyQualifiedTargetClass, byteBuffer, 0, byteBuffer.length);
        classes.put(fullyQualifiedTargetClass, result);
        logger.info("Keeping class: {}", fullyQualifiedTargetClass);
        return result;
    } catch (Throwable t) {
        throw new ClassNotFoundException(t.getMessage(), t);
    }
}

From source file:org.evosuite.junit.DetermineSUT.java

License:Open Source License

public Set<String> determineCalledClasses(String fullyQualifiedTargetClass, Set<String> targetClasses)
        throws ClassNotFoundException, NoJUnitClassException {
    Set<String> calledClasses = new HashSet<String>();

    String className = fullyQualifiedTargetClass.replace('.', '/');
    try {/*from  w  w  w .j  a va2  s  . c o m*/

        InputStream is = ClassLoader.getSystemResourceAsStream(className + ".class");
        if (is == null) {
            throw new ClassNotFoundException("Class '" + className + ".class"
                    + "' should be in target project, but could not be found!");
        }
        ClassReader reader = new ClassReader(is);
        ClassNode classNode = new ClassNode();
        reader.accept(classNode, ClassReader.SKIP_FRAMES);
        superClasses = getSuperClasses(classNode);

        if (isJUnitTest(classNode)) {
            handleClassNode(calledClasses, classNode, targetClasses);
        } else {
            throw new NoJUnitClassException();
        }
    } catch (IOException e) {
        e.printStackTrace();
    }

    calledClasses.remove("java.lang.Object");
    calledClasses.remove(fullyQualifiedTargetClass);

    return calledClasses;
}

From source file:org.evosuite.junit.DetermineSUT.java

License:Open Source License

private ClassNode loadClassNode(String className) throws IOException {
    ClassReader reader = new ClassReader(
            ResourceList.getInstance(TestGenerationContext.getInstance().getClassLoaderForSUT())
                    .getClassAsStream(className));

    ClassNode cn = new ClassNode();
    reader.accept(cn, ClassReader.SKIP_FRAMES); // | ClassReader.SKIP_DEBUG);   
    return cn;/*w  ww. j  a v a 2  s.  co  m*/
}

From source file:org.evosuite.regression.bytecode.RegressionClassDiff.java

License:Open Source License

private static Map<String, List<Integer>> getClassInstructions(InputStream classAsInputStream) {
    HashMap<String, List<Integer>> methodInstructionsMap = new HashMap<>();
    try {//from   w  w w  .j  a va 2 s. c om
        ClassReader reader = new ClassReader(classAsInputStream);
        ClassNode classNode = new ClassNode();
        reader.accept(classNode, 0);
        @SuppressWarnings("unchecked")
        final List<MethodNode> methods = classNode.methods;
        Printer printer = new Textifier();
        TraceMethodVisitor mp = new TraceMethodVisitor(printer);
        for (MethodNode m : methods) {
            List<Integer> instructions = new ArrayList<>();

            InsnList inList = m.instructions;

            String mathodID = m.name + ": " + m.desc;
            System.out.println(mathodID);
            int[] methodInstructions = new int[inList.size()];
            for (int i = 0; i < inList.size(); i++) {
                int op = inList.get(i).getOpcode();
                methodInstructions[i] = op;
                AbstractInsnNode insn = inList.get(i);
                insn.accept(mp);

                // Uncomment the following comment block to print the bytecode
                // instructions
                // StringWriter sw = new StringWriter();
                // printer.print(new PrintWriter(sw));
                // printer.getText().clear();
                // System.out.println(sw.toString());
                // logger.warn("{} -> {}", sw.toString(), op);
                if (op != -1)
                    instructions.add(op);
            }
            methodInstructionsMap.put(mathodID, instructions);
        }
    } catch (IOException e) {
        // Will fail if ClassReader fails
        e.printStackTrace();
    }
    return methodInstructionsMap;
}

From source file:org.evosuite.regression.RegressionClassDiff.java

License:Open Source License

public static Map<String, List<Integer>> getClassInstructions(InputStream classAsInputStream) {
    HashMap<String, List<Integer>> methodInstructionsMap = new HashMap<>();
    try {//from   w  ww. java2 s  .co m
        ClassReader reader = new ClassReader(classAsInputStream);
        ClassNode classNode = new ClassNode();
        reader.accept(classNode, 0);
        @SuppressWarnings("unchecked")
        final List<MethodNode> methods = classNode.methods;
        Printer printer = new Textifier();
        TraceMethodVisitor mp = new TraceMethodVisitor(printer);
        for (MethodNode m : methods) {
            List<Integer> instructions = new ArrayList<>();

            InsnList inList = m.instructions;

            String mathodID = m.name + ": " + m.desc;
            System.out.println(mathodID);
            int[] methodInstructions = new int[inList.size()];
            for (int i = 0; i < inList.size(); i++) {
                int op = inList.get(i).getOpcode();
                methodInstructions[i] = op;
                AbstractInsnNode insn = inList.get(i);
                insn.accept(mp);

                // Uncomment the following comment block to print the bytecode
                // instructions
                // StringWriter sw = new StringWriter();
                // printer.print(new PrintWriter(sw));
                // printer.getText().clear();
                // System.out.println(sw.toString());
                // logger.warn("{} -> {}", sw.toString(), op);
                if (op != -1)
                    instructions.add(op);
            }
            methodInstructionsMap.put(mathodID, instructions);
        }
    } catch (IOException e) {
        // Will fail if ClassReader fails
        e.printStackTrace();
    }
    return methodInstructionsMap;
}