Example usage for org.objectweb.asm Opcodes INVOKEVIRTUAL

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

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Introduction

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

Prototype

int INVOKEVIRTUAL

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

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Usage

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 a  va2 s.co 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.boretti.drools.integration.drools5.DroolsAddGeneratedGetMethodVisitor.java

License:Open Source License

@Override
protected void onMethodEnter() {
    super.onMethodEnter();
    this.visitVarInsn(Opcodes.ALOAD, 0);
    this.visitMethodInsn(Opcodes.INVOKEVIRTUAL, Type.getObjectType(parent).getInternalName(), droolsRun, "()V");
}

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

License:Open Source License

@Override
public void visitEnd() {
    FieldVisitor fv = null;/*from   w  ww. j a  v  a2  s  .  c o  m*/
    if (isNeedChangeForBoth()) {
        fv = super.visitField(Opcodes.ACC_PRIVATE, DROOLS_FIELD_NAME, Type.BOOLEAN_TYPE.getDescriptor(), null,
                null);
        if (fv != null) {
            AnnotationVisitor av = fv.visitAnnotation(Type.getType(Generated.class).getDescriptor(), true);
            AnnotationVisitor value = av.visitArray("value");
            value.visit("", "Generated by Drools5IntegrationHelper Maven plugin");
            value.visitEnd();
            av.visit("date", new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ssz").format(current));
            av.visitEnd();
            fv.visitEnd();
        }
    }
    if (isNeedChangeForField()) {
        fv = super.visitField(Opcodes.ACC_PRIVATE, DROOLS_FIELD_RULE,
                Type.getType(RuleBase.class).getDescriptor(), null, null);
        if (fv != null) {
            AnnotationVisitor av = fv.visitAnnotation(Type.getType(Generated.class).getDescriptor(), true);
            AnnotationVisitor value = av.visitArray("value");
            value.visit("", "Generated by Drools5IntegrationHelper Maven plugin");
            value.visitEnd();
            av.visit("date", new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ssz").format(current));
            av.visitEnd();
            fv.visitEnd();
        }
        MethodVisitor mv = super.visitMethod(Opcodes.ACC_PRIVATE, DROOLS_METHOD_RUN, "()V", null, null);
        AnnotationVisitor av = mv.visitAnnotation(Type.getType(Generated.class).getDescriptor(), true);
        AnnotationVisitor value = av.visitArray("value");
        value.visit("", "Generated by Drools5IntegrationHelper Maven plugin");
        value.visitEnd();
        av.visit("date", new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ssz").format(current));
        av.visitEnd();
        mv.visitCode();
        Label start = new Label();
        mv.visitLabel(start);
        Label doIt = new Label();
        mv.visitVarInsn(Opcodes.ALOAD, 0);
        mv.visitFieldInsn(Opcodes.GETFIELD, Type.getObjectType(me).getInternalName(), DROOLS_FIELD_NAME,
                Type.BOOLEAN_TYPE.getDescriptor());
        mv.visitJumpInsn(Opcodes.IFEQ, doIt);
        mv.visitInsn(Opcodes.RETURN);
        mv.visitLabel(doIt);
        mv.visitFrame(Opcodes.F_SAME, 1, new Object[] { Type.getObjectType(me).getInternalName() }, 0,
                new Object[] {});
        mv.visitVarInsn(Opcodes.ALOAD, 0);
        mv.visitFieldInsn(Opcodes.GETFIELD, Type.getObjectType(me).getInternalName(), DROOLS_FIELD_RULE,
                Type.getType(RuleBase.class).getDescriptor());
        mv.visitMethodInsn(Opcodes.INVOKEINTERFACE, Type.getType(RuleBase.class).getInternalName(),
                "newStatelessSession", "()Lorg/drools/StatelessSession;");
        mv.visitInsn(Opcodes.DUP);
        mv.visitLdcInsn(FIELD_NAME_LOGGER);
        mv.visitVarInsn(Opcodes.ALOAD, 0);
        mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, Type.getType(Object.class).getInternalName(), "getClass",
                "()Ljava/lang/Class;");
        mv.visitMethodInsn(Opcodes.INVOKESTATIC, Type.getType(org.apache.log4j.Logger.class).getInternalName(),
                "getLogger", "(Ljava/lang/Class;)Lorg/apache/log4j/Logger;");
        mv.visitMethodInsn(Opcodes.INVOKEINTERFACE, Type.getType(StatelessSession.class).getInternalName(),
                "setGlobal", "(Ljava/lang/String;Ljava/lang/Object;)V");
        mv.visitVarInsn(Opcodes.ALOAD, 0);
        mv.visitMethodInsn(Opcodes.INVOKEINTERFACE, Type.getType(StatelessSession.class).getInternalName(),
                "execute", "(Ljava/lang/Object;)V");
        mv.visitVarInsn(Opcodes.ALOAD, 0);
        mv.visitInsn(Opcodes.ICONST_1);
        mv.visitFieldInsn(Opcodes.PUTFIELD, Type.getObjectType(me).getInternalName(), DROOLS_FIELD_NAME,
                Type.BOOLEAN_TYPE.getDescriptor());
        mv.visitInsn(Opcodes.RETURN);
        Label end = new Label();
        mv.visitLabel(end);
        mv.visitLocalVariable("this", Type.getObjectType(me).getDescriptor(), null, start, end, 0);
        mv.visitMaxs(4, 1);
        mv.visitEnd();
    }
    super.visitEnd();
}

From source file:org.brutusin.instrumentation.Instrumentator.java

License:Apache License

private void addTraceStart() {
    InsnList il = new InsnList();
    int methodParametersIndex = addMethodParametersVariable(il);
    addGetMethodInvocation(il);/*from ww w  . j a  v a  2s .  c o  m*/
    addStoreMethod(il);
    addGetCallback(il);

    il.add(new VarInsnNode(Opcodes.ALOAD, this.methodVarIndex));
    il.add(new VarInsnNode(Opcodes.ALOAD, methodParametersIndex));
    il.add(new MethodInsnNode(Opcodes.INVOKEVIRTUAL, "org/brutusin/instrumentation/Callback", "onStart",
            "(Ljava/lang/Object;[Ljava/lang/Object;)Ljava/lang/String;", false));

    this.executionIdIndex = getFistAvailablePosition();
    il.add(new VarInsnNode(Opcodes.ASTORE, this.executionIdIndex));
    this.mn.maxLocals++;
    this.startNode = new LabelNode();
    this.mn.instructions.insert(startNode);
    this.mn.instructions.insert(il);
}

From source file:org.brutusin.instrumentation.Instrumentator.java

License:Apache License

private void addCatchBlock(LabelNode startNode, LabelNode endNode) {

    InsnList il = new InsnList();
    LabelNode handlerNode = new LabelNode();
    il.add(handlerNode);//from   w  w w . ja v  a2  s  .  c om

    int exceptionVariablePosition = getFistAvailablePosition();
    il.add(new VarInsnNode(Opcodes.ASTORE, exceptionVariablePosition));
    this.methodOffset++; // Actualizamos el offset
    addGetCallback(il);
    il.add(new VarInsnNode(Opcodes.ALOAD, this.methodVarIndex));
    il.add(new VarInsnNode(Opcodes.ALOAD, exceptionVariablePosition));
    il.add(new VarInsnNode(Opcodes.ALOAD, this.executionIdIndex));
    il.add(new MethodInsnNode(Opcodes.INVOKEVIRTUAL, "org/brutusin/instrumentation/Callback",
            "onThrowableUncatched", "(Ljava/lang/Object;Ljava/lang/Throwable;Ljava/lang/String;)V", false));

    il.add(new VarInsnNode(Opcodes.ALOAD, exceptionVariablePosition));
    il.add(new InsnNode(Opcodes.ATHROW));

    TryCatchBlockNode blockNode = new TryCatchBlockNode(startNode, endNode, handlerNode, null);

    this.mn.tryCatchBlocks.add(blockNode);
    this.mn.instructions.add(il);
}

From source file:org.brutusin.instrumentation.Instrumentator.java

License:Apache License

private InsnList getVoidReturnTraceInstructions() {
    InsnList il = new InsnList();
    addGetCallback(il);//from  w  w w.j ava  2 s . com
    il.add(new VarInsnNode(Opcodes.ALOAD, this.methodVarIndex));
    il.add(new VarInsnNode(Opcodes.ALOAD, this.executionIdIndex));
    il.add(new MethodInsnNode(Opcodes.INVOKEVIRTUAL, "org/brutusin/instrumentation/Callback", "onVoidFinish",
            "(Ljava/lang/Object;Ljava/lang/String;)V", false));

    return il;
}

From source file:org.brutusin.instrumentation.Instrumentator.java

License:Apache License

private InsnList getThrowTraceInstructions() {
    InsnList il = new InsnList();

    int exceptionVariablePosition = getFistAvailablePosition();
    il.add(new VarInsnNode(Opcodes.ASTORE, exceptionVariablePosition));

    this.methodOffset++; // Actualizamos el offset
    addGetCallback(il);//from www  .j a va  2 s .  c o m
    il.add(new VarInsnNode(Opcodes.ALOAD, this.methodVarIndex));
    il.add(new VarInsnNode(Opcodes.ALOAD, exceptionVariablePosition));
    il.add(new VarInsnNode(Opcodes.ALOAD, this.executionIdIndex));
    il.add(new MethodInsnNode(Opcodes.INVOKEVIRTUAL, "org/brutusin/instrumentation/Callback",
            "onThrowableThrown", "(Ljava/lang/Object;Ljava/lang/Throwable;Ljava/lang/String;)V", false));

    il.add(new VarInsnNode(Opcodes.ALOAD, exceptionVariablePosition));

    return il;
}

From source file:org.brutusin.instrumentation.Instrumentator.java

License:Apache License

private InsnList getReturnTraceInstructions() {

    InsnList il = new InsnList();

    int retunedVariablePosition = getFistAvailablePosition();
    il.add(TreeInstructions.getStoreInst(this.methodReturnType, retunedVariablePosition));

    this.variableCreated(this.methodReturnType); // Actualizamos el offset
    addGetCallback(il);/*from w w  w .j av a 2  s  .co  m*/
    il.add(new VarInsnNode(Opcodes.ALOAD, this.methodVarIndex));
    il.add(TreeInstructions.getLoadInst(this.methodReturnType, retunedVariablePosition));
    MethodInsnNode mNode = TreeInstructions.getWrapperContructionInst(this.methodReturnType);
    if (mNode != null) {
        il.add(mNode);
    }
    il.add(new VarInsnNode(Opcodes.ALOAD, this.executionIdIndex));
    il.add(new MethodInsnNode(Opcodes.INVOKEVIRTUAL, "org/brutusin/instrumentation/Callback", "onFinish",
            "(Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/String;)V", false));

    il.add(TreeInstructions.getLoadInst(this.methodReturnType, retunedVariablePosition));

    return il;

}

From source file:org.cacheonix.impl.transformer.CacheonixMethodGenerator.java

License:LGPL

/**
 * Generated the byte instructions to write the message to System out stream
 *
 * @param mv      Method Visitor that writes byte instructions
 * @param message message that needs to be written to the out stream
 *//*from   w  w  w  . ja  v a 2 s.  com*/
public static void printingToSysout(final MethodVisitor mv, final String message) {

    mv.visitFieldInsn(Opcodes.GETSTATIC, "java/lang/System", "out", "Ljava/io/PrintStream;");
    mv.visitLdcInsn(message);
    mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/io/PrintStream", "println", "(Ljava/lang/String;)V");
}

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

License:Apache License

@Deprecated
public static void genInvokeXxxWithArray(ClassWriter cw, Method method) {
    MethodVisitor mv;//from  w  w w .  j a v a  2s  . c  o  m
    mv = cw.visitMethod(Opcodes.ACC_PUBLIC, "invoke",
            "(Ljava/lang/Object;[Ljava/lang/Object;)Ljava/lang/Object;", null, EXCEPTIONS);
    mv.visitCode();

    Class callClass = method.getDeclaringClass();
    boolean useInterface = callClass.isInterface();

    String type = BytecodeHelper.getClassInternalName(callClass.getName());
    String descriptor = BytecodeHelper.getMethodDescriptor(method.getReturnType(), method.getParameterTypes());

    // make call
    if (Modifier.isStatic(method.getModifiers())) {
        genLoadParameters(2, mv, method);
        mv.visitMethodInsn(Opcodes.INVOKESTATIC, type, method.getName(), descriptor);
    } else {
        mv.visitVarInsn(Opcodes.ALOAD, 1);
        BytecodeHelper.doCast(mv, callClass);
        genLoadParameters(2, mv, method);
        mv.visitMethodInsn((useInterface) ? Opcodes.INVOKEINTERFACE : Opcodes.INVOKEVIRTUAL, type,
                method.getName(), descriptor);
    }

    BytecodeHelper.box(mv, method.getReturnType());
    if (method.getReturnType() == void.class) {
        mv.visitInsn(Opcodes.ACONST_NULL);
    }

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