Example usage for org.objectweb.asm MethodVisitor visitLdcInsn

List of usage examples for org.objectweb.asm MethodVisitor visitLdcInsn

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Introduction

In this page you can find the example usage for org.objectweb.asm MethodVisitor visitLdcInsn.

Prototype

public void visitLdcInsn(final Object value)

Source Link

Document

Visits a LDC instruction.

Usage

From source file:com.gmail.socraticphoenix.nebula.event.wrappers.BytecodeEventListenerGeneration.java

License:Open Source License

public static void firstCause(FirstCause firstCause, Class type, int param, int event, MethodVisitor visitor) {
    Label returnLabel = new Label();
    Label continueLabel = new Label();

    visitor.visitVarInsn(ALOAD, event);/*ww  w  .  j ava 2 s  .c  o m*/
    visitor.visitMethodInsn(INVOKEINTERFACE, BytecodeEventListenerGeneration.eventType.getInternalName(),
            "cause", BytecodeEventListenerGeneration.eventCauseMethod.getDescriptor(), true);
    visitor.visitLdcInsn(Type.getType(type));
    visitor.visitMethodInsn(INVOKEVIRTUAL, BytecodeEventListenerGeneration.causeType.getInternalName(), "first",
            BytecodeEventListenerGeneration.causeFirstMethod.getDescriptor(), false);
    visitor.visitInsn(DUP);
    visitor.visitMethodInsn(INVOKEVIRTUAL, BytecodeEventListenerGeneration.optionalType.getInternalName(),
            "isPresent", BytecodeEventListenerGeneration.isPresentMethod.getDescriptor(), false);
    visitor.visitJumpInsn(IFEQ, returnLabel);
    visitor.visitMethodInsn(INVOKEVIRTUAL, BytecodeEventListenerGeneration.optionalType.getInternalName(),
            "get", BytecodeEventListenerGeneration.getMethod.getDescriptor(), false);
    BytecodeEventListenerGeneration.checkCast(Type.getType(type), visitor);
    visitor.visitVarInsn(ASTORE, param);
    visitor.visitJumpInsn(GOTO, continueLabel);
    visitor.visitLabel(returnLabel);
    visitor.visitInsn(RETURN);
    visitor.visitLabel(continueLabel);
}

From source file:com.gmail.socraticphoenix.nebula.event.wrappers.BytecodeEventListenerGeneration.java

License:Open Source License

public static void lastCause(LastCause lastCause, Class type, int param, int event, MethodVisitor visitor) {
    Label returnLabel = new Label();
    Label continueLabel = new Label();

    visitor.visitVarInsn(ALOAD, event);/* ww  w .  j  ava 2  s .c  o m*/
    visitor.visitMethodInsn(INVOKEINTERFACE, BytecodeEventListenerGeneration.eventType.getInternalName(),
            "cause", BytecodeEventListenerGeneration.eventCauseMethod.getDescriptor(), true);
    visitor.visitLdcInsn(Type.getType(type));
    visitor.visitMethodInsn(INVOKEVIRTUAL, BytecodeEventListenerGeneration.causeType.getInternalName(), "last",
            BytecodeEventListenerGeneration.causeLastMethod.getDescriptor(), false);
    visitor.visitInsn(DUP);
    visitor.visitMethodInsn(INVOKEVIRTUAL, BytecodeEventListenerGeneration.optionalType.getInternalName(),
            "isPresent", BytecodeEventListenerGeneration.isPresentMethod.getDescriptor(), false);
    visitor.visitJumpInsn(IFEQ, returnLabel);
    visitor.visitMethodInsn(INVOKEVIRTUAL, BytecodeEventListenerGeneration.optionalType.getInternalName(),
            "get", BytecodeEventListenerGeneration.getMethod.getDescriptor(), false);
    BytecodeEventListenerGeneration.checkCast(Type.getType(type), visitor);
    visitor.visitVarInsn(ASTORE, param);
    visitor.visitJumpInsn(GOTO, continueLabel);
    visitor.visitLabel(returnLabel);
    visitor.visitInsn(RETURN);
    visitor.visitLabel(continueLabel);
}

From source file:com.gmail.socraticphoenix.nebula.event.wrappers.BytecodeEventListenerGeneration.java

License:Open Source License

public static void getContext(GetContext getContext, String paramName, Class type, int param, int event,
        MethodVisitor visitor) {
    Label returnLabel = new Label();
    Label continueLabel = new Label();

    visitor.visitVarInsn(ALOAD, event);//from  w ww  .ja v  a 2  s. co m
    visitor.visitMethodInsn(INVOKEINTERFACE, BytecodeEventListenerGeneration.eventType.getInternalName(),
            "context", BytecodeEventListenerGeneration.eventContextMethod.getDescriptor(), true);
    visitor.visitLdcInsn(getContext.value().equals(GetContext.REFER_TO_PARAM) ? param : getContext.value());
    visitor.visitLdcInsn(Type.getType(type));
    visitor.visitMethodInsn(INVOKEVIRTUAL, BytecodeEventListenerGeneration.contextType.getInternalName(), "get",
            BytecodeEventListenerGeneration.contextGetMethod.getDescriptor(), false);
    visitor.visitInsn(DUP);
    visitor.visitMethodInsn(INVOKEVIRTUAL, BytecodeEventListenerGeneration.optionalType.getInternalName(),
            "isPresent", BytecodeEventListenerGeneration.isPresentMethod.getDescriptor(), false);
    visitor.visitJumpInsn(IFEQ, returnLabel);
    visitor.visitMethodInsn(INVOKEVIRTUAL, BytecodeEventListenerGeneration.optionalType.getInternalName(),
            "get", BytecodeEventListenerGeneration.getMethod.getDescriptor(), false);
    BytecodeEventListenerGeneration.checkCast(Type.getType(type), visitor);
    visitor.visitVarInsn(ASTORE, param);
    visitor.visitJumpInsn(GOTO, continueLabel);
    visitor.visitLabel(returnLabel);
    visitor.visitInsn(RETURN);
    visitor.visitLabel(continueLabel);
}

From source file:com.gmail.socraticphoenix.nebula.event.wrappers.BytecodeEventListenerGeneration.java

License:Open Source License

public static void allContexts(AllContexts contexts, boolean asPair, Class type, int param, int event,
        MethodVisitor visitor) {
    visitor.visitVarInsn(ALOAD, event);/*from  w  ww.  j  a  v a  2  s  .  c o  m*/
    visitor.visitMethodInsn(INVOKEINTERFACE, BytecodeEventListenerGeneration.eventType.getInternalName(),
            "context", BytecodeEventListenerGeneration.eventContextMethod.getDescriptor(), true);
    visitor.visitLdcInsn(Type.getType(type));
    if (asPair) {
        visitor.visitMethodInsn(INVOKEVIRTUAL, BytecodeEventListenerGeneration.contextType.getInternalName(),
                "all", BytecodeEventListenerGeneration.allContextMethod.getDescriptor(), false);
    } else {
        visitor.visitMethodInsn(INVOKEVIRTUAL, BytecodeEventListenerGeneration.contextType.getInternalName(),
                "allSimple", BytecodeEventListenerGeneration.allContextSimpleMethod.getDescriptor(), false);
    }
    visitor.visitVarInsn(ASTORE, param);
}

From source file:com.gmail.socraticphoenix.nebula.event.wrappers.BytecodeEventListenerGeneration.java

License:Open Source License

public static void firstContext(FirstContext firstContext, boolean asPair, Class type, int param, int event,
        MethodVisitor visitor) {
    Label returnLabel = new Label();
    Label continueLabel = new Label();

    visitor.visitVarInsn(ALOAD, event);// w  ww  .ja va  2s  . c  o m
    visitor.visitMethodInsn(INVOKEINTERFACE, BytecodeEventListenerGeneration.eventType.getInternalName(),
            "context", BytecodeEventListenerGeneration.eventContextMethod.getDescriptor(), true);
    visitor.visitLdcInsn(Type.getType(type));
    if (asPair) {
        visitor.visitMethodInsn(INVOKEVIRTUAL, BytecodeEventListenerGeneration.contextType.getInternalName(),
                "first", BytecodeEventListenerGeneration.contextFirstMethod.getDescriptor(), false);
    } else {
        visitor.visitMethodInsn(INVOKEVIRTUAL, BytecodeEventListenerGeneration.contextType.getInternalName(),
                "firstSimple", BytecodeEventListenerGeneration.contextSimpleFirstMethod.getDescriptor(), false);
    }
    visitor.visitInsn(DUP);
    visitor.visitMethodInsn(INVOKEVIRTUAL, BytecodeEventListenerGeneration.optionalType.getInternalName(),
            "isPresent", BytecodeEventListenerGeneration.isPresentMethod.getDescriptor(), false);
    visitor.visitJumpInsn(IFEQ, returnLabel);
    visitor.visitMethodInsn(INVOKEVIRTUAL, BytecodeEventListenerGeneration.optionalType.getInternalName(),
            "get", BytecodeEventListenerGeneration.getMethod.getDescriptor(), false);
    BytecodeEventListenerGeneration.checkCast(asPair ? Type.getType(Pair.class) : Type.getType(type), visitor);
    visitor.visitVarInsn(ASTORE, param);
    visitor.visitJumpInsn(GOTO, continueLabel);
    visitor.visitLabel(returnLabel);
    visitor.visitInsn(RETURN);
    visitor.visitLabel(continueLabel);
}

From source file:com.gmail.socraticphoenix.nebula.event.wrappers.BytecodeEventListenerGeneration.java

License:Open Source License

public static void lastContext(LastContext lastContext, boolean asPair, Class type, int param, int event,
        MethodVisitor visitor) {
    Label returnLabel = new Label();
    Label continueLabel = new Label();

    visitor.visitVarInsn(ALOAD, event);/*from  ww w . jav  a  2s  .  c  om*/
    visitor.visitMethodInsn(INVOKEINTERFACE, BytecodeEventListenerGeneration.eventType.getInternalName(),
            "context", BytecodeEventListenerGeneration.eventContextMethod.getDescriptor(), true);
    visitor.visitLdcInsn(Type.getType(type));
    if (asPair) {
        visitor.visitMethodInsn(INVOKEVIRTUAL, BytecodeEventListenerGeneration.contextType.getInternalName(),
                "last", BytecodeEventListenerGeneration.contextLastMethod.getDescriptor(), false);
    } else {
        visitor.visitMethodInsn(INVOKEVIRTUAL, BytecodeEventListenerGeneration.contextType.getInternalName(),
                "lastSimple", BytecodeEventListenerGeneration.contextSimpleLastMethod.getDescriptor(), false);
    }
    visitor.visitInsn(DUP);
    visitor.visitMethodInsn(INVOKEVIRTUAL, BytecodeEventListenerGeneration.optionalType.getInternalName(),
            "isPresent", BytecodeEventListenerGeneration.isPresentMethod.getDescriptor(), false);
    visitor.visitJumpInsn(IFEQ, returnLabel);
    visitor.visitMethodInsn(INVOKEVIRTUAL, BytecodeEventListenerGeneration.optionalType.getInternalName(),
            "get", BytecodeEventListenerGeneration.getMethod.getDescriptor(), false);
    BytecodeEventListenerGeneration.checkCast(asPair ? Type.getType(Pair.class) : Type.getType(type), visitor);
    visitor.visitVarInsn(ASTORE, param);
    visitor.visitJumpInsn(GOTO, continueLabel);
    visitor.visitLabel(returnLabel);
    visitor.visitInsn(RETURN);
    visitor.visitLabel(continueLabel);
}

From source file:com.gmail.socraticphoenix.occurence.wrappers.BytecodeEventListenerGeneration.java

License:Open Source License

public static String listener(EventListener eventListener, Class eventClass, Object listener, Method method,
        ClassVisitor visitor) {/*from   w  ww  .  j a v a2  s.c  o m*/
    Type listenerType = Type.getType(listener.getClass());
    Type eventType = Type.getType(eventClass);
    String internalImplName = listenerType.getInternalName() + "$listener$" + method.getName() + "$"
            + BytecodeEventListenerGeneration.index++;
    String simpleName = listener.getClass().getName() + "#" + method.getName() + "("
            + Stream.of(method.getParameters()).map(p -> p.getType().getSimpleName())
                    .reduce((a, b) -> a + ", " + b).orElse("")
            + ")";

    visitor.visit(V1_8, ACC_PUBLIC | ACC_SYNTHETIC | ACC_FINAL, internalImplName, null,
            BytecodeEventListenerGeneration.objectType.getInternalName(),
            new String[] { BytecodeEventListenerGeneration.eventWrapperType.getInternalName() });
    visitor.visitField(ACC_PRIVATE | ACC_FINAL, "listener", listenerType.getDescriptor(), null, null)
            .visitEnd();

    MethodVisitor constructor = visitor.visitMethod(ACC_PUBLIC, "<init>",
            Type.getMethodDescriptor(Type.VOID_TYPE, Type.getType(Object.class)), null, null);
    constructor.visitParameter("listener", ACC_FINAL);
    constructor.visitCode();
    constructor.visitVarInsn(ALOAD, 0);
    constructor.visitMethodInsn(INVOKESPECIAL, BytecodeEventListenerGeneration.objectType.getInternalName(),
            "<init>", Type.getMethodDescriptor(Type.VOID_TYPE), false);
    constructor.visitVarInsn(ALOAD, 0);
    constructor.visitVarInsn(ALOAD, 1);
    constructor.visitTypeInsn(CHECKCAST, listenerType.getInternalName());
    constructor.visitFieldInsn(PUTFIELD, internalImplName, "listener", listenerType.getDescriptor());
    constructor.visitInsn(RETURN);
    constructor.visitMaxs(0, 0);
    constructor.visitEnd();

    MethodVisitor name = visitor.visitMethod(ACC_PUBLIC, "name",
            Type.getMethodDescriptor(Type.getType(String.class)), null, null);
    name.visitLdcInsn(simpleName);
    name.visitInsn(ARETURN);
    name.visitMaxs(0, 0);
    name.visitEnd();

    MethodVisitor priority = visitor.visitMethod(ACC_PUBLIC | ACC_FINAL, "priority",
            BytecodeEventListenerGeneration.priorityMethod.getDescriptor(), null, null);
    priority.visitCode();
    priority.visitLdcInsn(eventListener.value());
    priority.visitInsn(IRETURN);
    priority.visitMaxs(0, 0);
    priority.visitEnd();

    MethodVisitor getListener = visitor.visitMethod(ACC_PUBLIC | ACC_FINAL, "listener",
            BytecodeEventListenerGeneration.listenerMethod.getDescriptor(), null, null);
    getListener.visitVarInsn(ALOAD, 0);
    getListener.visitFieldInsn(GETFIELD, internalImplName, "listener", listenerType.getDescriptor());
    getListener.visitInsn(ARETURN);
    getListener.visitMaxs(0, 0);
    getListener.visitEnd();

    MethodVisitor event = visitor.visitMethod(ACC_PUBLIC | ACC_FINAL, "mainEvent",
            BytecodeEventListenerGeneration.mainEventMethod.getDescriptor(), null, null);
    event.visitCode();
    event.visitLdcInsn(eventType);
    event.visitInsn(ARETURN);
    event.visitMaxs(0, 0);
    event.visitEnd();

    return internalImplName;
}

From source file:com.google.gag.agent.ThisHadBetterGenerator.java

License:Apache License

/**
 * The given Property needs to be either {@link Property#THE_BLUE_PILL} or
 * {@link Property#THE_RED_PILL}./* w w w  . j  ava 2s. c  o m*/
 */
private static void visitPill(MethodVisitor mv, boolean be, Property property, LocalVarInfo param, Label okay) {

    if (param.getType().getSort() != Type.OBJECT) {
        throw new AnnotationStateError("Unsupported type: " + param.getType());
    }

    // TODO: Also handle if parameter is null.

    Label notOkay = new Label();

    // See if the param type matches a Pill type
    mv.visitVarInsn(ALOAD, param.getIndex());
    mv.visitMethodInsn(INVOKEVIRTUAL, param.getType().getInternalName(), "getClass", "()Ljava/lang/Class;");
    mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Class", "getName", "()Ljava/lang/String;");
    mv.visitLdcInsn("Pill|ThePill|.*[\\.$]Pill|.*[\\.$]ThePill");
    mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/String", "matches", "(Ljava/lang/String;)Z");

    if (be) {
        // If the param type does not match a Pill type, that's not okay, go to exception.
        mv.visitJumpInsn(FALSE, notOkay);
    } else {
        // If the param type does not match a Pill type, then that's okay, skip exception.
        mv.visitJumpInsn(FALSE, okay);
    }

    // At this point, the param type matches a Pill type.
    // So check if the param type is an enum type.
    mv.visitVarInsn(ALOAD, param.getIndex());
    mv.visitTypeInsn(INSTANCEOF, "java/lang/Enum");

    if (be) {
        // If the param type is not an enum, that's not okay, go to exception.
        mv.visitJumpInsn(FALSE, notOkay);
    } else {
        // If the param type is not an enum, that's okay, skip exception.
        mv.visitJumpInsn(FALSE, okay);
    }

    // Check that the Pill type has the property specified in the annotation.
    // First try to match on "BLUE" (or "RED").
    mv.visitVarInsn(ALOAD, param.getIndex());
    mv.visitTypeInsn(CHECKCAST, "java/lang/Enum");
    mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Enum", "name", "()Ljava/lang/String;");
    mv.visitLdcInsn(property == Property.THE_BLUE_PILL ? "BLUE" : "RED");
    mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/String", "equals", "(Ljava/lang/Object;)Z");
    mv.visitJumpInsn(TRUE, be ? okay : notOkay);

    // Then try to see if the value ends with "BLUE_PILL" (or "RED_PILL").
    mv.visitVarInsn(ALOAD, param.getIndex());
    mv.visitTypeInsn(CHECKCAST, "java/lang/Enum");
    mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Enum", "name", "()Ljava/lang/String;");
    mv.visitLdcInsn(property == Property.THE_BLUE_PILL ? "BLUE_PILL" : "RED_PILL");
    mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/String", "endsWith", "(Ljava/lang/String;)Z");
    mv.visitJumpInsn(be ? TRUE : FALSE, okay);

    mv.visitLabel(notOkay);
}

From source file:com.google.gwtorm.jdbc.AccessGen.java

License:Apache License

private void implementGetString(final String methodName, final String returnValue) {
    final MethodVisitor mv = cw.visitMethod(ACC_PUBLIC | ACC_FINAL, methodName,
            Type.getMethodDescriptor(Type.getType(String.class), new Type[] {}), null, null);
    mv.visitCode();/*  ww  w. j  av a  2s .c o m*/
    mv.visitLdcInsn(returnValue);
    mv.visitInsn(ARETURN);
    mv.visitMaxs(-1, -1);
    mv.visitEnd();
}

From source file:com.google.gwtorm.jdbc.AccessGen.java

License:Apache License

private void throwUnsupported(final MethodVisitor mv, final String message) {
    final Type eType = Type.getType(UnsupportedOperationException.class);
    mv.visitTypeInsn(NEW, eType.getInternalName());
    mv.visitInsn(DUP);//from   w w w  . jav a  2 s .  c  o  m
    mv.visitLdcInsn(message);
    mv.visitMethodInsn(INVOKESPECIAL, eType.getInternalName(), "<init>",
            Type.getMethodDescriptor(Type.VOID_TYPE, new Type[] { Type.getType(String.class) }));
    mv.visitInsn(ATHROW);
}