Example usage for org.objectweb.asm Opcodes RETURN

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

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int RETURN

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Usage

From source file:com.asakusafw.dag.compiler.codegen.AsmUtil.java

License:Apache License

/**
 * Adds an empty constructor.//from   ww  w .j  ava2s. c  o m
 * @param writer the target class
 * @param superClass the super class
 * @param body the constructor body
 */
public static void defineEmptyConstructor(ClassWriter writer, Class<?> superClass,
        Consumer<MethodVisitor> body) {
    MethodVisitor method = writer.visitMethod(Opcodes.ACC_PUBLIC, CONSTRUCTOR_NAME,
            Type.getMethodDescriptor(Type.VOID_TYPE), null, null);
    method.visitVarInsn(Opcodes.ALOAD, 0);
    method.visitMethodInsn(Opcodes.INVOKESPECIAL, typeOf(superClass).getInternalName(), CONSTRUCTOR_NAME,
            Type.getMethodDescriptor(Type.VOID_TYPE), false);
    body.accept(method);
    method.visitInsn(Opcodes.RETURN);
    method.visitMaxs(0, 0);
    method.visitEnd();
}

From source file:com.asakusafw.dag.compiler.codegen.AsmUtil.java

License:Apache License

/**
 * Adds an adapter constructor./*from ww w. j a  va 2 s .c  o m*/
 * @param writer the target class
 * @param superClass the super class
 * @param body the constructor body
 */
public static void defineAdapterConstructor(ClassWriter writer, Class<?> superClass,
        Consumer<MethodVisitor> body) {
    MethodVisitor method = writer.visitMethod(Opcodes.ACC_PUBLIC, CONSTRUCTOR_NAME,
            Type.getMethodDescriptor(Type.VOID_TYPE, typeOf(VertexProcessorContext.class)), null, null);
    method.visitVarInsn(Opcodes.ALOAD, 0);
    method.visitVarInsn(Opcodes.ALOAD, 1);
    method.visitMethodInsn(Opcodes.INVOKESPECIAL, typeOf(superClass).getInternalName(), CONSTRUCTOR_NAME,
            Type.getMethodDescriptor(Type.VOID_TYPE, typeOf(VertexProcessorContext.class)), false);
    body.accept(method);
    method.visitInsn(Opcodes.RETURN);
    method.visitMaxs(0, 0);
    method.visitEnd();
}

From source file:com.asakusafw.dag.compiler.codegen.AsmUtil.java

License:Apache License

/**
 * Adds {@link Result#add(Object)} method.
 * @param writer the current writer//from   ww  w.  j  a  v  a 2 s .  c om
 * @param callback the callback
 */
public static void defineResultAdd(ClassVisitor writer, Consumer<MethodVisitor> callback) {
    MethodVisitor method = writer.visitMethod(Opcodes.ACC_PUBLIC, "add",
            Type.getMethodDescriptor(Type.VOID_TYPE, typeOf(Object.class)), null, null);
    callback.accept(method);
    method.visitInsn(Opcodes.RETURN);
    method.visitMaxs(0, 0);
    method.visitEnd();
}

From source file:com.asakusafw.dag.compiler.codegen.AsmUtil.java

License:Apache License

private static List<Tuple<VertexElement, FieldRef>> defineDependenciesConstructor0(ClassDescription aClass,
        ClassVisitor writer, Iterable<? extends VertexElement> dependencies,
        Consumer<MethodVisitor> superConstructor, Consumer<MethodVisitor> callback) {
    List<Tuple<VertexElement, FieldRef>> results = new ArrayList<>();
    int index = 0;
    int varIndex = 1;
    List<Type> parameterTypes = new ArrayList<>();
    List<Consumer<MethodVisitor>> ctor = new ArrayList<>();
    for (VertexElement element : dependencies) {
        int current = index++;
        int currentVar = varIndex;
        String name = getDependencyId(current);
        Type type = typeOf(element.getRuntimeType());
        parameterTypes.add(type);// w  w w.  j  a v a  2s.  c om
        FieldRef ref = defineField(writer, aClass, name, type);
        ctor.add(v -> {
            v.visitVarInsn(Opcodes.ALOAD, 0);
            v.visitVarInsn(loadOpcodeOf(element.getRuntimeType()), currentVar);
            putField(v, ref);
        });
        varIndex += categoryOf(element.getRuntimeType());
        results.add(new Tuple<>(element, ref));
    }
    MethodVisitor method = writer.visitMethod(Opcodes.ACC_PUBLIC, CONSTRUCTOR_NAME,
            Type.getMethodDescriptor(Type.VOID_TYPE, parameterTypes.stream().toArray(Type[]::new)), null, null);
    superConstructor.accept(method);
    ctor.forEach(c -> c.accept(method));
    callback.accept(method);
    method.visitInsn(Opcodes.RETURN);
    method.visitMaxs(0, 0);
    method.visitEnd();
    return results;
}

From source file:com.asakusafw.dag.compiler.codegen.EdgeDataTableAdapterGenerator.java

License:Apache License

private static void defineBuildKey(ClassGeneratorContext context, ClassWriter writer, TypeDescription dataType,
        Group group) {/*from  w  ww.j  a  v a2s  . com*/
    DataModelReference type = context.getDataModelLoader().load(dataType);
    List<PropertyReference> props = group.getGrouping().stream()
            .map(p -> Invariants.requireNonNull(type.findProperty(p))).collect(Collectors.toList());

    MethodVisitor v = writer.visitMethod(Opcodes.ACC_PUBLIC | Opcodes.ACC_FINAL, "buildKey",
            Type.getMethodDescriptor(Type.VOID_TYPE, typeOf(KeyBuffer.class), typeOf(Object.class)), null,
            null);

    LocalVarRef key = new LocalVarRef(Opcodes.ALOAD, 1);
    LocalVarRef object = cast(v, 2, dataType);
    for (PropertyReference p : props) {
        key.load(v);
        object.load(v);
        getOption(v, p);
        v.visitMethodInsn(Opcodes.INVOKEINTERFACE, typeOf(KeyBuffer.class).getInternalName(), "append",
                Type.getMethodDescriptor(typeOf(KeyBuffer.class), typeOf(Object.class)), true);
        v.visitInsn(Opcodes.POP);
    }

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

From source file:com.asakusafw.dag.compiler.codegen.KeyValueSerDeGenerator.java

License:Apache License

private static void putSerialize(String methodName, DataModelReference reference,
        List<PropertyReference> properties, ClassWriter writer) {
    MethodVisitor v = writer.visitMethod(Opcodes.ACC_PUBLIC, methodName,
            Type.getMethodDescriptor(Type.VOID_TYPE, typeOf(Object.class), typeOf(DataOutput.class)), null,
            new String[] { typeOf(IOException.class).getInternalName(),
                    typeOf(InterruptedException.class).getInternalName(), });
    if (properties.isEmpty()) {
        LocalVarRef output = new LocalVarRef(Opcodes.ALOAD, 2);
        output.load(v);//from  w w w.  j av  a  2 s  .  com
        getConst(v, 0);
        v.visitMethodInsn(Opcodes.INVOKEINTERFACE, typeOf(DataOutput.class).getInternalName(), "writeByte",
                Type.getMethodDescriptor(Type.VOID_TYPE, Type.INT_TYPE), true);
    } else {
        LocalVarRef object = cast(v, 1, reference.getDeclaration());
        LocalVarRef output = new LocalVarRef(Opcodes.ALOAD, 2);
        for (PropertyReference property : properties) {
            object.load(v);
            getOption(v, property);
            output.load(v);
            v.visitMethodInsn(Opcodes.INVOKESTATIC, SERDE.getInternalName(), "serialize", Type
                    .getMethodDescriptor(Type.VOID_TYPE, typeOf(property.getType()), typeOf(DataOutput.class)),
                    false);
        }
    }
    v.visitInsn(Opcodes.RETURN);
    v.visitMaxs(0, 0);
    v.visitEnd();
}

From source file:com.asakusafw.dag.compiler.codegen.OperationGenerator.java

License:Apache License

private static void addConstructor(ClassWriter writer, ClassDescription target, List<VertexElement> elements,
        Function<VertexElement, String> ids) {
    MethodVisitor method = writer.visitMethod(Opcodes.ACC_PUBLIC, "<init>",
            Type.getMethodDescriptor(Type.VOID_TYPE, typeOf(OperationAdapter.Context.class)), null, null);
    method.visitVarInsn(Opcodes.ALOAD, 0);
    method.visitMethodInsn(Opcodes.INVOKESPECIAL, typeOf(Object.class).getInternalName(), "<init>",
            Type.getMethodDescriptor(Type.VOID_TYPE), false);

    method.visitVarInsn(Opcodes.ALOAD, 0);
    method.visitVarInsn(Opcodes.ALOAD, 1);
    method.visitFieldInsn(Opcodes.PUTFIELD, target.getInternalName(), FIELD_CONTEXT,
            typeOf(OperationAdapter.Context.class).getDescriptor());

    for (VertexElement element : elements) {
        method.visitVarInsn(Opcodes.ALOAD, 0);
        method.visitMethodInsn(Opcodes.INVOKESPECIAL, target.getInternalName(), ids.apply(element),
                Type.getMethodDescriptor(Type.VOID_TYPE), false);
    }//from   ww w.j  a va2s. c  o m
    method.visitInsn(Opcodes.RETURN);
    method.visitMaxs(0, 0);
    method.visitEnd();
}

From source file:com.asakusafw.dag.compiler.codegen.OperationGenerator.java

License:Apache License

private static void addProcessMethod(ClassWriter writer, ClassDescription target, OperationSpec graph) {
    VertexElement consumer = graph.getInput().getConsumer();
    MethodVisitor method = writer.visitMethod(Opcodes.ACC_PUBLIC, "process",
            Type.getMethodDescriptor(Type.VOID_TYPE, typeOf(Object.class)), null, null);
    method.visitVarInsn(Opcodes.ALOAD, 0);
    method.visitFieldInsn(Opcodes.GETFIELD, target.getInternalName(), graph.getId(consumer),
            typeOf(consumer.getRuntimeType()).getDescriptor());
    method.visitVarInsn(Opcodes.ALOAD, 1);
    invokeResultAdd(method);//from   w w w.  jav a2  s .  c  om
    method.visitInsn(Opcodes.RETURN);
    method.visitMaxs(0, 0);
    method.visitEnd();
}

From source file:com.asakusafw.dag.compiler.codegen.OperationGenerator.java

License:Apache License

private static void addElementMethods(ClassWriter writer, ClassDescription target, List<VertexElement> elements,
        Function<VertexElement, String> ids) {
    for (VertexElement element : elements) {
        String id = ids.apply(element);
        MethodVisitor method = writer.visitMethod(Opcodes.ACC_PRIVATE, id,
                Type.getMethodDescriptor(Type.VOID_TYPE), null, null);
        method.visitVarInsn(Opcodes.ALOAD, 0);
        switch (element.getElementKind()) {
        case VALUE:
            getValue(method, target, (ValueElement) element, ids);
            break;
        case OPERATOR:
        case AGGREGATE:
            getClass(method, target, (ClassNode) element, ids);
            break;
        case OUTPUT:
            getOutput(method, target, (OutputNode) element, ids);
            break;
        case DATA_TABLE:
            getDataTable(method, target, (DataTableNode) element, ids);
            break;
        case CONTEXT:
            getContext(method, target, ids);
            break;
        case EMPTY_DATA_TABLE:
            getEmptyDataTable(method, target, ids);
            break;
        default://from  w w w. ja  v a2  s.  co m
            throw new AssertionError(element.getElementKind());
        }
        method.visitFieldInsn(Opcodes.PUTFIELD, target.getInternalName(), id,
                typeOf(element.getRuntimeType()).getDescriptor());
        method.visitInsn(Opcodes.RETURN);
        method.visitMaxs(0, 0);
        method.visitEnd();
    }
}

From source file:com.asakusafw.dag.compiler.codegen.ValueSerDeGenerator.java

License:Apache License

private static void putSerialize(DataModelReference reference, ClassWriter writer) {
    MethodVisitor v = writer.visitMethod(Opcodes.ACC_PUBLIC, "serialize",
            Type.getMethodDescriptor(Type.VOID_TYPE, typeOf(Object.class), typeOf(DataOutput.class)), null,
            new String[] { typeOf(IOException.class).getInternalName(),
                    typeOf(InterruptedException.class).getInternalName(), });
    LocalVarRef object = cast(v, 1, reference.getDeclaration());
    LocalVarRef output = new LocalVarRef(Opcodes.ALOAD, 2);
    for (PropertyReference property : reference.getProperties()) {
        object.load(v);//from  www .j ava  2s  .co  m
        getOption(v, property);
        output.load(v);
        v.visitMethodInsn(Opcodes.INVOKESTATIC, SERDE.getInternalName(), "serialize",
                Type.getMethodDescriptor(Type.VOID_TYPE, typeOf(property.getType()), typeOf(DataOutput.class)),
                false);
    }
    v.visitInsn(Opcodes.RETURN);
    v.visitMaxs(0, 0);
    v.visitEnd();
}