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:org.gradle.api.internal.tasks.compile.MethodStubbingApiMemberAdapter.java

License:Apache License

/**
 * Generates an exception which is going to be thrown in each method.
 * The reason it is in a separate method is because it reduces the bytecode size.
 *///w w  w .j  a  v  a 2  s .com
private void generateUnsupportedOperationExceptionMethod() {
    MethodVisitor mv = cv.visitMethod(ACC_PRIVATE | ACC_STATIC | ACC_SYNTHETIC, UOE_METHOD,
            "()Ljava/lang/UnsupportedOperationException;", null, null);
    mv.visitCode();
    mv.visitTypeInsn(NEW, "java/lang/UnsupportedOperationException");
    mv.visitInsn(DUP);
    mv.visitLdcInsn(
            "You tried to call a method on an API class. Is the API jar on the classpath instead of the runtime jar?");
    mv.visitMethodInsn(INVOKESPECIAL, "java/lang/UnsupportedOperationException", "<init>",
            "(Ljava/lang/String;)V", false);
    mv.visitInsn(ARETURN);
    mv.visitMaxs(3, 0);
    mv.visitEnd();
}

From source file:org.gradle.language.base.internal.tasks.apigen.StubClassWriter.java

License:Apache License

/**
 * Generates an exception which is going to be thrown in each method. The reason it is in a separate method is because it reduces the bytecode size.
 *//*  w  w  w . j a v a  2  s.c o m*/
private void generateUnsupportedOperationExceptionMethod() {
    MethodVisitor mv = cv.visitMethod(ACC_PRIVATE | ACC_STATIC | ACC_SYNTHETIC, UOE_METHOD,
            "()Ljava/lang/UnsupportedOperationException;", null, null);
    mv.visitCode();
    mv.visitTypeInsn(NEW, "java/lang/UnsupportedOperationException");
    mv.visitInsn(DUP);
    mv.visitLdcInsn(
            "You tried to call a method on an API class. You probably added the API jar on classpath instead of the implementation jar.");
    mv.visitMethodInsn(INVOKESPECIAL, "java/lang/UnsupportedOperationException", "<init>",
            "(Ljava/lang/String;)V", false);
    mv.visitInsn(ARETURN);
    mv.visitMaxs(3, 0);
    mv.visitEnd();
}

From source file:org.gradle.model.internal.manage.schema.extract.ManagedProxyClassGenerator.java

License:Apache License

private void writeManagedTypeStaticField(Type generatedType, Class<?> managedTypeClass,
        MethodVisitor constructorVisitor) {
    constructorVisitor.visitLdcInsn(Type.getType(managedTypeClass));
    constructorVisitor.visitMethodInsn(INVOKESTATIC, MODEL_TYPE_INTERNAL_NAME, "of",
            MODEL_TYPE_OF_METHOD_DESCRIPTOR, false);
    constructorVisitor.visitFieldInsn(PUTSTATIC, generatedType.getInternalName(), MANAGED_TYPE_FIELD_NAME,
            Type.getDescriptor(ModelType.class));
}

From source file:org.gradle.model.internal.manage.schema.extract.ManagedProxyClassGenerator.java

License:Apache License

private void setCanCallSettersField(MethodVisitor methodVisitor, Type generatedType, boolean canCallSetters) {
    putThisOnStack(methodVisitor);//  www  .  j a v  a2 s  .c  o m
    methodVisitor.visitLdcInsn(canCallSetters);
    methodVisitor.visitFieldInsn(PUTFIELD, generatedType.getInternalName(), CAN_CALL_SETTERS_FIELD_NAME,
            Type.BOOLEAN_TYPE.getDescriptor());
}

From source file:org.gradle.model.internal.manage.schema.extract.ManagedProxyClassGenerator.java

License:Apache License

private void writeTypeConvertingSetter(ClassVisitor visitor, Type generatedType, Class<?> viewClass,
        ModelProperty<?> property) {
    WeaklyTypeReferencingMethod<?, ?> weakSetter = property.getAccessor(SETTER);
    // There is no setter for this property
    if (weakSetter == null) {
        return;//from   ww  w  .j  a va  2  s. c om
    }
    if (!(property.getSchema() instanceof ScalarValueSchema)) {
        return;
    }

    Class<?> propertyClass = property.getType().getConcreteClass();
    Type propertyType = Type.getType(propertyClass);
    Class<?> boxedClass = propertyClass.isPrimitive() ? BOXED_TYPES.get(propertyClass) : propertyClass;
    Type boxedType = Type.getType(boxedClass);

    Method setter = weakSetter.getMethod();
    MethodVisitor methodVisitor = declareMethod(visitor, setter.getName(), SET_OBJECT_PROPERTY_DESCRIPTOR,
            SET_OBJECT_PROPERTY_DESCRIPTOR);

    putThisOnStack(methodVisitor);
    putTypeConverterFieldValueOnStack(methodVisitor, generatedType);

    // Object converted = $typeConverter.convert(foo, Float.class, false);
    methodVisitor.visitVarInsn(ALOAD, 1); // put var #1 ('foo') on the stack
    methodVisitor.visitLdcInsn(boxedType); // push the constant Class onto the stack
    methodVisitor.visitInsn(propertyClass.isPrimitive() ? ICONST_1 : ICONST_0); // push int 1 or 0 (interpreted as true or false) onto the stack
    Label startTry = new Label();
    methodVisitor.visitLabel(startTry);
    methodVisitor.visitMethodInsn(INVOKEINTERFACE, TYPE_CONVERTER_TYPE.getInternalName(), "convert",
            COERCE_TO_SCALAR_DESCRIPTOR, true);
    Label endTry = new Label();
    methodVisitor.visitLabel(endTry);
    methodVisitor.visitTypeInsn(CHECKCAST, boxedType.getInternalName());

    if (propertyClass.isPrimitive()) {
        unboxType(methodVisitor, propertyClass);
    }

    // invoke the typed setter
    methodVisitor.visitMethodInsn(INVOKEVIRTUAL, generatedType.getInternalName(), setter.getName(),
            Type.getMethodDescriptor(Type.VOID_TYPE, propertyType), false);
    methodVisitor.visitInsn(RETURN);

    // catch(TypeConversionException e) { throw ... }
    Label startCatch = new Label();
    methodVisitor.visitLabel(startCatch);
    methodVisitor.visitTryCatchBlock(startTry, endTry, startCatch,
            TYPE_CONVERSION_EXCEPTION_TYPE.getInternalName());
    methodVisitor.visitVarInsn(ASTORE, 2); // store thrown exception
    putClassOnStack(methodVisitor, viewClass);
    methodVisitor.visitLdcInsn(property.getName());
    putFirstMethodArgumentOnStack(methodVisitor);
    methodVisitor.visitVarInsn(ALOAD, 2);
    methodVisitor.visitMethodInsn(INVOKESTATIC, Type.getInternalName(ManagedProxyClassGenerator.class),
            "propertyValueConvertFailure", Type.getMethodDescriptor(Type.VOID_TYPE, CLASS_TYPE, STRING_TYPE,
                    OBJECT_TYPE, TYPE_CONVERSION_EXCEPTION_TYPE),
            false);
    finishVisitingMethod(methodVisitor);
}

From source file:org.gradle.model.internal.manage.schema.extract.ManagedProxyClassGenerator.java

License:Apache License

private void putConstantOnStack(MethodVisitor methodVisitor, Object value) {
    methodVisitor.visitLdcInsn(value);
}

From source file:org.iobserve.mobile.instrument.bytecode.ActivitiyBytecodeInstrumenter.java

License:Apache License

/**
 * {@inheritDoc}//from  w w  w . j ava  2 s.c  o m
 */
@Override
public void onMethodEnter(final String owner, final String name, final String desc, final AdviceAdapter parent,
        final MethodVisitor mv) {
    if (ACTIVITY_ONCREATE.equals(name)) {
        final String belAgentPoint = activityPointMapping.get("onCreate");

        // INSERT CONFIG CALLS
        mv.visitLdcInsn(connectionConfig.getBeaconUrl());
        mv.visitMethodInsn(Opcodes.INVOKESTATIC, EXTCONFIGURATION_TYPE.getInternalName(),
                setBeaconUrlMethod.getName(), setBeaconUrlType.getDescriptor(), false);

        mv.visitLdcInsn(connectionConfig.getHelloUrl());
        mv.visitMethodInsn(Opcodes.INVOKESTATIC, EXTCONFIGURATION_TYPE.getInternalName(),
                setHelloUrlMethod.getName(), setHelloUrlType.getDescriptor(), false);

        // INIT AGENT
        mv.visitVarInsn(Opcodes.ALOAD, 0);
        mv.visitMethodInsn(Opcodes.INVOKESTATIC, ANDROIDAGENT_TYPE.getInternalName(), belAgentPoint,
                "(Landroid/app/Activity;)V", false);
    } else if (ACTIVITY_ONDESTROY.equals(name)) {
        final String belAgentPoint = activityPointMapping.get("onDestroy");

        mv.visitMethodInsn(Opcodes.INVOKESTATIC, ANDROIDAGENT_TYPE.getInternalName(), belAgentPoint, "()V",
                false);
    } else if (ACTIVITY_ONSTART.equals(name)) {
        mv.visitVarInsn(Opcodes.ALOAD, 0);
        mv.visitMethodInsn(Opcodes.INVOKESTATIC, ANDROIDAGENT_TYPE.getInternalName(),
                onStartActivityMethod.getName(), onStartActivityType.getDescriptor(), false);
    } else if (ACTIVITY_ONSTOP.equals(name)) {
        mv.visitVarInsn(Opcodes.ALOAD, 0);
        mv.visitMethodInsn(Opcodes.INVOKESTATIC, ANDROIDAGENT_TYPE.getInternalName(),
                onStopActivityMethod.getName(), onStopActivityType.getDescriptor(), false);
    }
}

From source file:org.iobserve.mobile.instrument.bytecode.SensorBytecodeInstrumenter.java

License:Apache License

/**
 * {@inheritDoc}/*ww w  . j a v a2s  . c  o m*/
 */
@Override
public void onMethodEnter(final String owner, final String name, final String desc, final AdviceAdapter parent,
        final MethodVisitor mv) {
    // add sensor call
    mv.visitLdcInsn(sensor);
    mv.visitLdcInsn(name + desc);
    mv.visitLdcInsn(owner);
    mv.visitMethodInsn(Opcodes.INVOKESTATIC, ANDROIDAGENT_TYPE.getInternalName(), enterBodyMethod.getName(),
            enterBodyType.getDescriptor(), false);
    index = parent.newLocal(Type.LONG_TYPE);
    mv.visitVarInsn(Opcodes.LSTORE, index);
}

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

License:Open Source License

public int storeInstance(final MethodVisitor mv, final boolean clinit, final int variable) {
    final Handle bootstrapMethod = new Handle(Opcodes.H_INVOKESTATIC, className, InstrSupport.INITMETHOD_NAME,
            B_DESC, isInterface);//from   w  w  w .  j ava 2s .  c  om
    // As a workaround for https://bugs.openjdk.java.net/browse/JDK-8216970
    // constant should have type Object
    mv.visitLdcInsn(new ConstantDynamic(InstrSupport.DATAFIELD_NAME, "Ljava/lang/Object;", bootstrapMethod));
    mv.visitTypeInsn(Opcodes.CHECKCAST, "[Z");
    mv.visitVarInsn(Opcodes.ASTORE, variable);
    return 1;
}

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

License:Open Source License

@Before
public void setup() {
    actual = new MethodRecorder();
    actualVisitor = actual.getVisitor();
    expected = new MethodRecorder();
    expectedVisitor = expected.getVisitor();
    arrayStrategy = new IProbeArrayStrategy() {

        public int storeInstance(MethodVisitor mv, int variable) {
            mv.visitLdcInsn("init");
            return 5;
        }//  ww  w . j a v  a  2s .  c o  m

        public void addMembers(ClassVisitor delegate) {
        }
    };
}