Example usage for org.objectweb.asm Opcodes INVOKESPECIAL

List of usage examples for org.objectweb.asm Opcodes INVOKESPECIAL

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Introduction

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

Prototype

int INVOKESPECIAL

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

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Usage

From source file:org.apache.deltaspike.proxy.impl.AsmDeltaSpikeProxyClassGenerator.java

License:Apache License

private static void defineSuperAccessorMethod(ClassWriter cw, java.lang.reflect.Method method, Type superType,
        String superAccessorMethodSuffix) {
    Method originalAsmMethod = Method.getMethod(method);
    Method newAsmMethod = new Method(method.getName() + superAccessorMethodSuffix,
            originalAsmMethod.getReturnType(), originalAsmMethod.getArgumentTypes());
    GeneratorAdapter mg = new GeneratorAdapter(Opcodes.ACC_PUBLIC, newAsmMethod, null, null, cw);

    mg.visitCode();/*from   w  w w . j a  va 2s  . com*/

    // call super method
    mg.loadThis();
    mg.loadArgs();
    mg.visitMethodInsn(Opcodes.INVOKESPECIAL, superType.getInternalName(), method.getName(),
            Type.getMethodDescriptor(method), false);
    mg.returnValue();

    // finish the method
    mg.endMethod();
    mg.visitMaxs(10, 10);
    mg.visitEnd();
}

From source file:org.apache.s4.core.gen.OverloadDispatcherGenerator.java

License:Apache License

public Class<?> generate() {
    Random rand = new Random(System.currentTimeMillis());
    String dispatcherClassName = "OverloadDispatcher" + (Math.abs(rand.nextInt() % 3256));

    // class headers
    ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_FRAMES);
    // CheckClassAdapter cw = new CheckClassAdapter(cw1);
    cw.visit(V1_6, ACC_PUBLIC + ACC_SUPER, dispatcherClassName, null, Type.getInternalName(Object.class),
            new String[] { Type.getInternalName(OverloadDispatcher.class) });

    // constructor
    MethodVisitor mv1 = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null);
    mv1.visitCode();/*  ww  w. j av a 2s . c o  m*/
    Label l0 = new Label();
    mv1.visitLabel(l0);
    mv1.visitVarInsn(ALOAD, 0);
    mv1.visitMethodInsn(Opcodes.INVOKESPECIAL, "java/lang/Object", "<init>", "()V");
    Label l1 = new Label();
    mv1.visitLabel(l1);
    mv1.visitInsn(RETURN);
    Label l2 = new Label();
    mv1.visitLabel(l2);
    mv1.visitLocalVariable("this", "Lio/s4/core/" + dispatcherClassName + ";", null, l0, l2, 0);
    mv1.visitMaxs(1, 1);

    mv1.visitEnd();

    // dispatch input events method
    generateEventDispatchMethod(cw, "dispatchEvent", inputEventHierarchies, "onEvent");
    // dispatch output events method
    generateEventDispatchMethod(cw, "dispatchTrigger", outputEventHierarchies, "onTrigger");

    cw.visitEnd();

    if (DUMP) {
        try {
            LoggerFactory.getLogger(getClass())
                    .debug("Dumping generated overload dispatcher class for PE of class [" + targetClass + "]");
            Files.write(cw.toByteArray(),
                    new File(System.getProperty("java.io.tmpdir") + "/" + dispatcherClassName + ".class"));
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
    return new OverloadDispatcherClassLoader(targetClass.getClassLoader())
            .loadClassFromBytes(dispatcherClassName, cw.toByteArray());

}

From source file:org.batoo.jpa.core.impl.instance.Enhancer.java

License:Open Source License

private static void createContainerConstructor(final String enhancingClassName, final String enhancedClassName,
        final String descEnhancer, final ClassWriter cw) {
    final MethodVisitor mv = cw.visitMethod(Opcodes.ACC_PUBLIC, Enhancer.CONSTRUCTOR_INIT,
            Enhancer.makeDescription(Void.TYPE, Class.class, SessionImpl.class, Object.class, Boolean.TYPE),
            null, null);// w w  w . ja v  a 2  s.  c  o m
    mv.visitCode();

    final Label l0 = new Label();
    mv.visitLabel(l0);
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitMethodInsn(Opcodes.INVOKESPECIAL, enhancingClassName, Enhancer.CONSTRUCTOR_INIT,
            Enhancer.makeDescription(Void.TYPE));

    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitVarInsn(Opcodes.ALOAD, 1);
    mv.visitFieldInsn(Opcodes.PUTFIELD, enhancedClassName, Enhancer.FIELD_ENHANCED_TYPE,
            Enhancer.DESCRIPTOR_CLASS);

    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitVarInsn(Opcodes.ALOAD, 2);
    mv.visitFieldInsn(Opcodes.PUTFIELD, enhancedClassName, Enhancer.FIELD_ENHANCED_SESSION,
            Enhancer.DESCRIPTOR_SESSION);

    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitVarInsn(Opcodes.ALOAD, 3);
    mv.visitFieldInsn(Opcodes.PUTFIELD, enhancedClassName, Enhancer.FIELD_ENHANCED_ID,
            Enhancer.DESCRIPTOR_OBJECT);

    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitVarInsn(Opcodes.ILOAD, 4);
    mv.visitFieldInsn(Opcodes.PUTFIELD, enhancedClassName, Enhancer.FIELD_ENHANCED_INITIALIZED,
            Enhancer.DESCRIPTOR_BOOLEAN);

    mv.visitInsn(Opcodes.RETURN);

    final Label l1 = new Label();
    mv.visitLabel(l1);
    mv.visitLocalVariable(Enhancer.THIS, descEnhancer, null, l0, l1, 0);
    mv.visitLocalVariable("type", Enhancer.DESCRIPTOR_CLASS, null, l0, l1, 1);
    mv.visitLocalVariable("session", Enhancer.DESCRIPTOR_SESSION, null, l0, l1, 2);
    mv.visitLocalVariable("id", Enhancer.DESCRIPTOR_OBJECT, null, l0, l1, 3);
    mv.visitLocalVariable("initialized", Enhancer.DESCRIPTOR_BOOLEAN, null, l0, l1, 4);
    mv.visitMaxs(0, 0);

    mv.visitEnd();
}

From source file:org.batoo.jpa.core.impl.instance.Enhancer.java

License:Open Source License

private static void createMethodCheck(final String enhancedClassName, final String descEnhancer,
        final ClassWriter cw) {
    final MethodVisitor mv = cw.visitMethod(Opcodes.ACC_PRIVATE, Enhancer.METHOD_ENHANCED_CHECK,
            Enhancer.makeDescription(Void.TYPE), null, null);
    mv.visitCode();//from   w w  w. j  a  va 2  s.c om

    final Label lCheckInternal = new Label();
    final Label lCheckInitialized = new Label();
    final Label lReturn = new Label();
    final Label lFind = new Label();
    final Label lInitialized = new Label();
    final Label lChanged = new Label();
    final Label lOut = new Label();

    // if (!this.__enhanced__$$__internal) { return }
    mv.visitLabel(lCheckInternal);
    mv.visitFrame(Opcodes.F_NEW, 1, new Object[] { enhancedClassName }, 0, new Object[] {});
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitFieldInsn(Opcodes.GETFIELD, enhancedClassName, Enhancer.FIELD_ENHANCED_INTERNAL,
            Enhancer.DESCRIPTOR_BOOLEAN);
    mv.visitJumpInsn(Opcodes.IFEQ, lCheckInitialized);
    mv.visitInsn(Opcodes.RETURN);

    // if (!this.__enhanced__$$__initialized) {
    mv.visitLabel(lCheckInitialized);
    mv.visitFrame(Opcodes.F_NEW, 1, new Object[] { enhancedClassName }, 0, new Object[] {});
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitFieldInsn(Opcodes.GETFIELD, enhancedClassName, Enhancer.FIELD_ENHANCED_INITIALIZED,
            Enhancer.DESCRIPTOR_BOOLEAN);
    mv.visitJumpInsn(Opcodes.IFNE, lChanged);

    //     if (this.__enhanced_$$__session == null)
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitFieldInsn(Opcodes.GETFIELD, enhancedClassName, Enhancer.FIELD_ENHANCED_SESSION,
            Enhancer.DESCRIPTOR_SESSION);
    mv.visitJumpInsn(Opcodes.IFNONNULL, lFind);

    //         throw new PersistenceException("No session to initialize the instance");
    mv.visitTypeInsn(Opcodes.NEW, Enhancer.INTERNAL_PERSISTENCE_EXCEPTION);
    mv.visitInsn(Opcodes.DUP);
    mv.visitLdcInsn("No session to initialize the instance");
    mv.visitMethodInsn(Opcodes.INVOKESPECIAL, Enhancer.INTERNAL_PERSISTENCE_EXCEPTION,
            Enhancer.CONSTRUCTOR_INIT, Enhancer.makeDescription(Void.TYPE, String.class));
    mv.visitInsn(Opcodes.ATHROW);

    //       this.__enhanced_$$__session.getEntityManager().find(this.__enhanced_$$__type, this.__enhanced__$$__id);
    mv.visitLabel(lFind);
    mv.visitFrame(Opcodes.F_NEW, 1, new Object[] { enhancedClassName }, 0, new Object[] {});
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitFieldInsn(Opcodes.GETFIELD, enhancedClassName, Enhancer.FIELD_ENHANCED_SESSION,
            Enhancer.DESCRIPTOR_SESSION);
    mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, Enhancer.INTERNAL_SESSION, Enhancer.METHOD_GET_ENTITY_MANAGER,
            Enhancer.makeDescription(EntityManagerImpl.class));
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitFieldInsn(Opcodes.GETFIELD, enhancedClassName, Enhancer.FIELD_ENHANCED_TYPE,
            Enhancer.DESCRIPTOR_CLASS);
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitFieldInsn(Opcodes.GETFIELD, enhancedClassName, Enhancer.FIELD_ENHANCED_ID,
            Enhancer.DESCRIPTOR_OBJECT);
    mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, Enhancer.INTERNAL_ENTITY_MANAGER, Enhancer.METHOD_FIND,
            Enhancer.makeDescription(Object.class, Class.class, Object.class));
    mv.visitInsn(Opcodes.POP);

    //   this.__enhanced__$$__initialized = true;
    mv.visitLabel(lInitialized);
    mv.visitFrame(Opcodes.F_NEW, 1, new Object[] { enhancedClassName }, 0, new Object[] {});
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitInsn(Opcodes.ICONST_1);
    mv.visitFieldInsn(Opcodes.PUTFIELD, enhancedClassName, Enhancer.FIELD_ENHANCED_INITIALIZED,
            Enhancer.DESCRIPTOR_BOOLEAN);

    // if (this.__enhanced_$$__session != null)
    mv.visitLabel(lChanged);
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitFieldInsn(Opcodes.GETFIELD, enhancedClassName, Enhancer.FIELD_ENHANCED_SESSION,
            Enhancer.DESCRIPTOR_SESSION);
    mv.visitJumpInsn(Opcodes.IFNULL, lReturn);

    //     this.__enhanced__$$__managedInstance.changed();
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitFieldInsn(Opcodes.GETFIELD, enhancedClassName, Enhancer.FIELD_ENHANCED_MANAGED_INSTANCE,
            Enhancer.DESCRIPTOR_MANAGED_INSTANCE);
    mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, Enhancer.INTERNAL_MANAGED_INSTANCE, Enhancer.METHOD_CHANGED,
            Enhancer.makeDescription(Void.TYPE));

    // return;
    mv.visitLabel(lReturn);
    mv.visitFrame(Opcodes.F_NEW, 1, new Object[] { enhancedClassName }, 0, new Object[] {});
    mv.visitInsn(Opcodes.RETURN);

    mv.visitLabel(lOut);
    mv.visitLocalVariable(Enhancer.THIS, descEnhancer, null, lCheckInternal, lOut, 0);
    mv.visitMaxs(0, 0);
    mv.visitEnd();
}

From source file:org.batoo.jpa.core.impl.instance.Enhancer.java

License:Open Source License

private static void createNoArgConstructor(final String enhancingClassName, final String enhancedClassName,
        final String descEnhancer, final ClassWriter cw) {
    final MethodVisitor mv = cw.visitMethod(Opcodes.ACC_PUBLIC, Enhancer.CONSTRUCTOR_INIT,
            Enhancer.makeDescription(Void.TYPE), null, null);
    mv.visitCode();//w  w w.ja v a 2 s.  co  m

    final Label l0 = new Label();
    mv.visitLabel(l0);
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitMethodInsn(Opcodes.INVOKESPECIAL, enhancingClassName, Enhancer.CONSTRUCTOR_INIT,
            Enhancer.makeDescription(Void.TYPE));

    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitInsn(Opcodes.ACONST_NULL);
    mv.visitFieldInsn(Opcodes.PUTFIELD, enhancedClassName, Enhancer.FIELD_ENHANCED_ID,
            Enhancer.DESCRIPTOR_OBJECT);

    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitInsn(Opcodes.ACONST_NULL);
    mv.visitFieldInsn(Opcodes.PUTFIELD, enhancedClassName, Enhancer.FIELD_ENHANCED_TYPE,
            Enhancer.DESCRIPTOR_CLASS);

    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitInsn(Opcodes.ACONST_NULL);
    mv.visitFieldInsn(Opcodes.PUTFIELD, enhancedClassName, Enhancer.FIELD_ENHANCED_SESSION,
            Enhancer.DESCRIPTOR_SESSION);

    mv.visitInsn(Opcodes.RETURN);

    final Label l1 = new Label();
    mv.visitLabel(l1);
    mv.visitLocalVariable(Enhancer.THIS, descEnhancer, null, l0, l1, 0);
    mv.visitMaxs(0, 0);
    mv.visitEnd();
}

From source file:org.batoo.jpa.core.impl.instance.Enhancer.java

License:Open Source License

private static void createOverrriddenMethod(final String enhancingClassName, final String enhancedClassName,
        final String descEnhancer, final ClassWriter cw, Method method) {
    final String methodDescription = Enhancer.makeDescription(method.getReturnType(),
            method.getParameterTypes());

    // TODO Exception types
    for (int i = 0; i < method.getExceptionTypes().length; i++) {
    }/*from www .  j a va 2  s.c om*/

    final MethodVisitor mv = cw.visitMethod(method.getModifiers(), method.getName(), methodDescription, null,
            null);
    mv.visitCode();

    // this.__enhanced_$$__check();
    final Label lCheck = new Label();
    mv.visitLabel(lCheck);
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitMethodInsn(Opcodes.INVOKESPECIAL, enhancedClassName, Enhancer.METHOD_ENHANCED_CHECK,
            Enhancer.makeDescription(Void.TYPE));

    mv.visitVarInsn(Opcodes.ALOAD, 0); // load this

    // infer the method parameters
    for (int i = 0, r = 1; i < method.getParameterTypes().length; i++, r++) {
        final Class<?> paramClass = method.getParameterTypes()[i];
        mv.visitVarInsn(Enhancer.getLoadType(paramClass), r); // load parameter

        if ((paramClass == Double.TYPE) || (paramClass == Long.TYPE)) {
            r++;
        }
    }

    // super.method(...);
    mv.visitMethodInsn(Opcodes.INVOKESPECIAL, enhancingClassName, method.getName(), methodDescription);

    if (method.getReturnType() != Void.TYPE) {
        // non void return
        mv.visitInsn(Enhancer.getReturnType(method.getReturnType()));
    } else {
        // void return
        mv.visitInsn(Opcodes.RETURN);
    }

    final Label lOut = new Label();
    mv.visitLabel(lOut);
    Enhancer.registerLocals(descEnhancer, method, mv, lCheck, lOut);
    mv.visitMaxs(0, 0);
    mv.visitEnd();
}

From source file:org.boretti.drools.integration.drools5.DroolsAbstractMethodVisitor.java

License:Open Source License

private void addCondition(boolean preCondition, String type, String resourceName, Type error) {
    droolsGoalExecutionLog.getLogs()/*from  w  w  w . j  a  v a  2 s  .  c  o  m*/
            .add(new DroolsGoalExecutionLog(droolsGoalExecutionLog.getFileName(),
                    droolsGoalExecutionLog.getAction(), "Method instrumentalization for "
                            + ((preCondition) ? "pre" : "post") + "-condition " + name + "/" + desc));
    visitor.setMethodChange(true);
    Type types[] = Type.getArgumentTypes(super.methodDesc);
    //runPreCondition
    this.visitVarInsn(Opcodes.ALOAD, 0);
    this.visitMethodInsn(Opcodes.INVOKEVIRTUAL, Type.getObjectType(parent).getInternalName(), "getClass",
            "()Ljava/lang/Class;");
    if (type == null)
        type = "COMPILED";
    this.visitFieldInsn(Opcodes.GETSTATIC, Type.getInternalName(DroolsServiceType.class), type,
            Type.getDescriptor(DroolsServiceType.class));
    this.visitLdcInsn(resourceName);
    this.visitLdcInsn(error);
    this.visitVarInsn(Opcodes.ALOAD, 0);
    this.visitIntInsn(Opcodes.BIPUSH, types.length);
    this.visitTypeInsn(Opcodes.ANEWARRAY, "java/lang/Object");
    int position = 1;
    for (int i = 0; i < types.length; i++) {
        this.visitInsn(Opcodes.DUP);
        this.visitIntInsn(Opcodes.BIPUSH, i);
        if (types[i].equals(Type.BOOLEAN_TYPE)) {
            this.visitVarInsn(Opcodes.ILOAD, position);
            this.visitMethodInsn(Opcodes.INVOKESTATIC, Type.getInternalName(Boolean.class), "valueOf",
                    "(Z)Ljava/lang/Boolean;");
            position += 1;
        } else if (types[i].equals(Type.BYTE_TYPE)) {
            this.visitTypeInsn(Opcodes.NEW, "java/lang/Byte");
            this.visitInsn(Opcodes.DUP);
            this.visitVarInsn(Opcodes.ILOAD, position);
            this.visitMethodInsn(Opcodes.INVOKESPECIAL, Type.getInternalName(Byte.class), "<init>", "(B)V");
            position += 1;
        } else if (types[i].equals(Type.CHAR_TYPE)) {
            this.visitTypeInsn(Opcodes.NEW, "java/lang/Character");
            this.visitInsn(Opcodes.DUP);
            this.visitVarInsn(Opcodes.ILOAD, position);
            this.visitMethodInsn(Opcodes.INVOKESPECIAL, Type.getInternalName(Character.class), "<init>",
                    "(C)V");
            position += 1;
        } else if (types[i].equals(Type.DOUBLE_TYPE)) {
            this.visitTypeInsn(Opcodes.NEW, "java/lang/Double");
            this.visitInsn(Opcodes.DUP);
            this.visitVarInsn(Opcodes.DLOAD, position);
            this.visitMethodInsn(Opcodes.INVOKESPECIAL, Type.getInternalName(Double.class), "<init>", "(D)V");
            position += 2;
        } else if (types[i].equals(Type.FLOAT_TYPE)) {
            this.visitTypeInsn(Opcodes.NEW, "java/lang/Float");
            this.visitInsn(Opcodes.DUP);
            this.visitVarInsn(Opcodes.FLOAD, position);
            this.visitMethodInsn(Opcodes.INVOKESPECIAL, Type.getInternalName(Float.class), "<init>", "(F)V");
            position += 1;
        } else if (types[i].equals(Type.INT_TYPE)) {
            this.visitTypeInsn(Opcodes.NEW, "java/lang/Integer");
            this.visitInsn(Opcodes.DUP);
            this.visitVarInsn(Opcodes.ILOAD, position);
            this.visitMethodInsn(Opcodes.INVOKESPECIAL, Type.getInternalName(Integer.class), "<init>", "(I)V");
            position += 1;
        } else if (types[i].equals(Type.LONG_TYPE)) {
            this.visitTypeInsn(Opcodes.NEW, "java/lang/Long");
            this.visitInsn(Opcodes.DUP);
            this.visitVarInsn(Opcodes.LLOAD, position);
            this.visitMethodInsn(Opcodes.INVOKESPECIAL, Type.getInternalName(Long.class), "<init>", "(J)V");
            position += 2;
        } else if (types[i].equals(Type.SHORT_TYPE)) {
            this.visitTypeInsn(Opcodes.NEW, "java/lang/Short");
            this.visitInsn(Opcodes.DUP);
            this.visitVarInsn(Opcodes.ILOAD, position);
            this.visitMethodInsn(Opcodes.INVOKESPECIAL, Type.getInternalName(Short.class), "<init>", "(S)V");
            position += 1;
        } else {
            this.visitVarInsn(Opcodes.ALOAD, position);
            position += 1;
        }
        this.visitInsn(Opcodes.AASTORE);
    }
    if (preCondition)
        this.visitMethodInsn(Opcodes.INVOKESTATIC, Type.getInternalName(DroolsProvider.class),
                "runPreCondition",
                "(Ljava/lang/Class;Lorg/boretti/drools/integration/drools5/DroolsServiceType;Ljava/lang/String;Ljava/lang/Class;Ljava/lang/Object;[Ljava/lang/Object;)V");
    else
        this.visitMethodInsn(Opcodes.INVOKESTATIC, Type.getInternalName(DroolsProvider.class),
                "runPostCondition",
                "(Ljava/lang/Class;Lorg/boretti/drools/integration/drools5/DroolsServiceType;Ljava/lang/String;Ljava/lang/Class;Ljava/lang/Object;[Ljava/lang/Object;)V");
}

From source file:org.boretti.drools.integration.drools5.DroolsAddConstructorMethodVisitor.java

License:Open Source License

@Override
protected void onMethodEnter() {
    this.visitVarInsn(Opcodes.ALOAD, 0);
    this.visitInsn(Opcodes.DUP);
    this.visitInsn(Opcodes.DUP);
    this.visitInsn(Opcodes.ICONST_0);
    this.visitFieldInsn(Opcodes.PUTFIELD, Type.getObjectType(parent).getInternalName(), droolsName,
            Type.BOOLEAN_TYPE.getDescriptor());
    this.visitTypeInsn(Opcodes.NEW, Type.getType(DroolsProvider.class).getInternalName());
    this.visitInsn(Opcodes.DUP);
    this.visitMethodInsn(Opcodes.INVOKESPECIAL, Type.getType(DroolsProvider.class).getInternalName(), "<init>",
            "()V");
    this.visitInsn(Opcodes.SWAP);
    this.visitMethodInsn(Opcodes.INVOKEVIRTUAL, Type.getObjectType(parent).getInternalName(), "getClass",
            "()Ljava/lang/Class;");
    if (overrideNameJVMIndex >= 0) {
        this.visitVarInsn(Opcodes.ALOAD, overrideNameJVMIndex);
    }//from   w w w.j av a 2s  . c  o  m
    if (overrideTypeJVMIndex >= 0) {
        this.visitVarInsn(Opcodes.ALOAD, overrideTypeJVMIndex);
    }
    if (overrideNameJVMIndex < 0 && overrideTypeJVMIndex < 0) {
        this.visitMethodInsn(Opcodes.INVOKEVIRTUAL, Type.getType(DroolsProvider.class).getInternalName(),
                "getRuleBase", "(Ljava/lang/Class;)Lorg/drools/RuleBase;");
    } else if (overrideNameJVMIndex < 0 && overrideTypeJVMIndex >= 0) {
        this.visitMethodInsn(Opcodes.INVOKEVIRTUAL, Type.getType(DroolsProvider.class).getInternalName(),
                "getRuleBaseOverride",
                "(Ljava/lang/Class;Lorg/boretti/drools/integration/drools5/DroolsServiceType;)Lorg/drools/RuleBase;");
    } else if (overrideNameJVMIndex >= 0 && overrideTypeJVMIndex < 0) {
        this.visitMethodInsn(Opcodes.INVOKEVIRTUAL, Type.getType(DroolsProvider.class).getInternalName(),
                "getRuleBaseOverride", "(Ljava/lang/Class;Ljava/lang/String;)Lorg/drools/RuleBase;");
    } else {
        this.visitMethodInsn(Opcodes.INVOKEVIRTUAL, Type.getType(DroolsProvider.class).getInternalName(),
                "getRuleBaseOverride",
                "(Ljava/lang/Class;Ljava/lang/String;Lorg/boretti/drools/integration/drools5/DroolsServiceType;)Lorg/drools/RuleBase;");
    }
    this.visitFieldInsn(Opcodes.PUTFIELD, Type.getObjectType(parent).getInternalName(), droolsRule,
            Type.getType(RuleBase.class).getDescriptor());
}

From source file:org.codehaus.groovy.reflection.MethodHandleFactory.java

License:Apache License

private static void genConstructor(ClassWriter cw, final String superClass) {
    MethodVisitor mv;//from w ww .ja va 2 s. c o m
    mv = cw.visitMethod(Opcodes.ACC_PUBLIC, "<init>", "()V", null, null);
    mv.visitCode();
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitMethodInsn(Opcodes.INVOKESPECIAL, superClass, "<init>", "()V");
    mv.visitInsn(Opcodes.RETURN);
    mv.visitMaxs(0, 0);
    mv.visitEnd();
}

From source file:org.codehaus.groovy.runtime.callsite.CallSiteGenerator.java

License:Apache License

private static void genConstructor(ClassWriter cw, final String superClass, String internalName) {
    MethodVisitor mv;/*ww w.jav a  2  s .  c  om*/
    mv = cw.visitMethod(Opcodes.ACC_PUBLIC, "<init>",
            "(Lorg/codehaus/groovy/runtime/callsite/CallSite;Lgroovy/lang/MetaClassImpl;Lgroovy/lang/MetaMethod;[Ljava/lang/Class;Ljava/lang/reflect/Constructor;)V",
            null, null);
    mv.visitCode();
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitVarInsn(Opcodes.ALOAD, 1);
    mv.visitVarInsn(Opcodes.ALOAD, 2);
    mv.visitVarInsn(Opcodes.ALOAD, 3);
    mv.visitVarInsn(Opcodes.ALOAD, 4);
    mv.visitMethodInsn(Opcodes.INVOKESPECIAL, superClass, "<init>",
            "(Lorg/codehaus/groovy/runtime/callsite/CallSite;Lgroovy/lang/MetaClassImpl;Lgroovy/lang/MetaMethod;[Ljava/lang/Class;)V",
            false);

    mv.visitVarInsn(Opcodes.ALOAD, 5);
    mv.visitFieldInsn(Opcodes.PUTSTATIC, internalName, "__constructor__", "Ljava/lang/reflect/Constructor;");

    mv.visitInsn(Opcodes.RETURN);
    mv.visitMaxs(0, 0);
    mv.visitEnd();
}