Example usage for org.objectweb.asm Opcodes V1_7

Introduction

In this page you can find the example usage for org.objectweb.asm Opcodes V1_7.

Prototype

int V1_7

To view the source code for org.objectweb.asm Opcodes V1_7.

Click Source Link

Usage

From source file:org.elasticsearch.plan.a.Writer.java

License:Apache License

private void writeBegin() {
    final int compute = ClassWriter.COMPUTE_FRAMES | ClassWriter.COMPUTE_MAXS;
    final int version = Opcodes.V1_7;
    final int access = Opcodes.ACC_PUBLIC | Opcodes.ACC_SUPER | Opcodes.ACC_FINAL | Opcodes.ACC_SYNTHETIC;
    final String base = BASE_CLASS_TYPE.getInternalName();
    final String name = CLASS_TYPE.getInternalName();

    writer = new ClassWriter(compute);
    writer.visit(version, access, name, null, base, null);
    writer.visitSource(source, null);/*  www. jav a2 s  .c  o m*/
}

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From source file:org.fabric3.implementation.bytecode.reflection.BytecodeConsumerInvokerFactory.java

License:Open Source License

@SuppressWarnings("unchecked")
public ConsumerInvoker createInvoker(Method method) {
    BytecodeClassLoader classLoader = getClassLoader(method);

    Class<?> declaringClass = method.getDeclaringClass();

    // use the toString() hashcode of the method since more than one invoker may be created per class (if it has multiple methods)
    int code = Math.abs(method.toString().hashCode());
    String className = declaringClass.getName() + "_ConsumerInvoker" + code;

    try {//from www.j av  a2s  .  c  o m
        Class<ConsumerInvoker> invokerClass = (Class<ConsumerInvoker>) classLoader.loadClass(className);
        return invokerClass.newInstance();
    } catch (ClassNotFoundException e) {
        // ignore
    } catch (InstantiationException e) {
        throw new AssertionError(e);
    } catch (IllegalAccessException e) {
        throw new AssertionError(e);
    }

    String internalTargetName = Type.getInternalName(declaringClass);
    String internalInvokerName = internalTargetName + "_ConsumerInvoker" + code;

    ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS);

    cw.visit(Opcodes.V1_7, ACC_PUBLIC + ACC_SUPER, internalInvokerName, null, "java/lang/Object",
            TARGET_INVOKER_INTERFACES);

    cw.visitSource(className + ".java", null);

    // write the ctor
    BytecodeHelper.writeConstructor(cw, Object.class);

    // write the invoker method
    writeTargetInvoke(method, internalTargetName, cw);

    cw.visitEnd();

    return BytecodeHelper.instantiate(ConsumerInvoker.class, className, classLoader, cw);
}

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From source file:org.fabric3.monitor.impl.proxy.BytecodeMonitorProxyService.java

License:Open Source License

/**
 * Performs the actual bytecode generation to implement the given interface
 *
 * @param type  the interface to implement
 * @param flags the ClassWriter flags/*from  w ww . ja v a2  s  . co m*/
 * @return the generated bytecode
 * @throws MonitorCreationException if there is an error generating the class
 */
<T> byte[] generateClass(Class<T> type, int flags) throws MonitorCreationException {
    String proxyClassNameInternal = Type.getInternalName(type).replace("$", "") + "_Proxy";
    String proxyClassDescriptor = "L" + proxyClassNameInternal + ";";

    String interfazeName = Type.getInternalName(type);

    ClassWriter cw = new ClassWriter(flags);
    cw.visit(Opcodes.V1_7, ACC_PUBLIC + ACC_SUPER, proxyClassNameInternal, null, ABSTRACT_MONITOR_HANDLER,
            new String[] { interfazeName });

    cw.visitSource(type.getName() + "Proxy.java", null);
    if (type.isLocalClass()) {
        String enclosingName = Type.getInternalName(type.getEnclosingClass());

        cw.visitInnerClass(interfazeName, enclosingName, type.getSimpleName(),
                ACC_PUBLIC + ACC_STATIC + ACC_ABSTRACT + ACC_INTERFACE);
    }

    writeConstructor(cw, proxyClassDescriptor);

    Method[] methods = type.getMethods();
    int index = 0;
    for (Method method : methods) {
        String signature = calculateWriteParametersSignature(method);

        Class<?>[] parameterTypes = method.getParameterTypes();
        generateMethod(cw, method, index, proxyClassNameInternal, signature);
        writeGenerateParametersMethod(cw, index, signature, parameterTypes);
        index++;
    }

    cw.visitEnd();

    return cw.toByteArray();
}

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From source file:org.gradle.initialization.DefaultLegacyTypesSupport.java

License:Apache License

@Override
public byte[] generateSyntheticClass(String name) {
    ClassWriter visitor = new ClassWriter(0);
    visitor.visit(Opcodes.V1_7,
            Opcodes.ACC_PUBLIC | Opcodes.ACC_SYNTHETIC | Opcodes.ACC_INTERFACE | Opcodes.ACC_ABSTRACT,
            name.replace('.', '/'), null, OBJECT_TYPE.getInternalName(), null);
    visitor.visitEnd();//from  w  w w .j  a v a 2 s.c  om
    return visitor.toByteArray();
}

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From source file:org.icesquirrel.compiler.SquirrelCompiler.java

License:Open Source License

public void compile(InputStream in, String scriptName) throws Exception {
    SquirrelLexer l = new SquirrelLexer(new ANTLRInputStream(in));
    SquirrelParser p = new SquirrelParser(new CommonTokenStream(l));
    p.addErrorListener(new BaseErrorListener() {
        @Override/*from   ww w .  j a  v a 2 s  .  c  om*/
        public void syntaxError(Recognizer<?, ?> recognizer, Object offendingSymbol, int line,
                int charPositionInLine, String msg, RecognitionException e) {
            throw new IllegalStateException("failed to parse at line " + line + " due to " + msg, e);
        }
    });
    ScriptContext script = p.script();

    // Determine class name
    String className = convertClassName((namespace == null ? "" : namespace + ".") + scriptName);
    LOG.info(String.format("Generating class %s", className));

    // Write the class definition and main() method
    ClassWriter cw = new ClassWriter(0);
    cw.visit(Opcodes.V1_7, Opcodes.ACC_PUBLIC, className, null, "java/lang/Object",
            new String[] { convertClassName(SquirrelMain.class.getName()) });
    final MethodVisitor visitMethod = cw.visitMethod(Opcodes.ACC_PUBLIC + Opcodes.ACC_STATIC, "main",
            "(L[java/lang/String;)V", null, null);
    compileMain(cw, visitMethod, script);

    visitMethod.visitEnd();

    // Finish writing the main class
    cw.visitEnd();

    // Output the class file
    File dir = namespace == null ? output : new File(output, namespace.replace('.', File.separatorChar));
    if (!dir.exists() && !dir.mkdirs()) {
        throw new IOException(String.format("Could not create output directory %s", dir));
    }
    File classFile = new File(dir, scriptName + ".class");
    LOG.info(String.format("Writing class to %s", classFile.getPath()));
    FileOutputStream fos = new FileOutputStream(classFile);
    try {
        fos.write(cw.toByteArray());
    } finally {
        fos.close();
    }

}

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From source file:org.jacoco.core.internal.analysis.ContentTypeDetector.java

License:Open Source License

private static int determineType(final InputStream in) throws IOException {
    switch (readInt(in)) {
    case ZIPFILE:
        return ZIPFILE;
    case CLASSFILE:
        // also verify version to distinguish from Mach Object files:
        switch (readInt(in)) {
        case Opcodes.V1_1:
        case Opcodes.V1_2:
        case Opcodes.V1_3:
        case Opcodes.V1_4:
        case Opcodes.V1_5:
        case Opcodes.V1_6:
        case Opcodes.V1_7:
            return CLASSFILE;
        }//from www  .ja va 2  s  . c om
    }
    return UNKNOWN;
}

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From source file:org.jacoco.core.internal.ContentTypeDetector.java

License:Open Source License

private static int determineType(final InputStream in) throws IOException {
    final int header = readInt(in);
    switch (header) {
    case ZIPFILE:
        return ZIPFILE;
    case PACK200FILE:
        return PACK200FILE;
    case CLASSFILE:
        // also verify version to distinguish from Mach Object files:
        switch (readInt(in)) {
        case Opcodes.V1_1:
        case Opcodes.V1_2:
        case Opcodes.V1_3:
        case Opcodes.V1_4:
        case Opcodes.V1_5:
        case Opcodes.V1_6:
        case Opcodes.V1_7:
            return CLASSFILE;
        }//ww  w  .java2 s .  c  om
    }
    if ((header & 0xffff0000) == GZFILE) {
        return GZFILE;
    }
    return UNKNOWN;
}

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From source file:org.jacoco.core.internal.data.CRC64Test.java

License:Open Source License

@Test
public void except_java_9_checksums_should_be_different_for_different_bytecode_versions() {
    assertEquals(0x589E9080A572741EL, CRC64.classId(createClass(Opcodes.V10)));

    // should remove workaround for Java 9
    // during change of exec file version
    assertEquals(0x1007, ExecutionDataWriter.FORMAT_VERSION);

    assertEquals(0xB5284860A572741CL, CRC64.classId(createClass(Opcodes.V9)));

    assertEquals(0xB5284860A572741CL, CRC64.classId(createClass(Opcodes.V1_8)));

    assertEquals(0x45284D30A572741AL, CRC64.classId(createClass(Opcodes.V1_7)));
}

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From source file:org.jacoco.core.internal.instr.ProbeArrayStrategyFactoryTest.java

License:Open Source License

@Test
public void testClass7() {
    final IProbeArrayStrategy strategy = test(Opcodes.V1_7, 0, false, true, true);
    assertEquals(ClassFieldProbeArrayStrategy.class, strategy.getClass());
    assertDataField(InstrSupport.DATAFIELD_ACC);
    assertInitMethod(true);/*w w w.  jav  a2  s.  co m*/
}

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From source file:org.jacoco.core.internal.instr.ProbeArrayStrategyFactoryTest.java

License:Open Source License

@Test
public void testInterface7() {
    final IProbeArrayStrategy strategy = test(Opcodes.V1_7, Opcodes.ACC_INTERFACE, true, false, true);
    assertEquals(LocalProbeArrayStrategy.class, strategy.getClass());
    assertNoDataField();//  w w w.j  a  va 2 s . c o m
    assertNoInitMethod();
}

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