private void writeGroovyMethods(ClassVisitor visitor, Class<?> managedTypeClass) {
    // Object propertyMissing(String name)
    MethodVisitor methodVisitor =
        declareMethod(
            visitor, "propertyMissing", GET_PROPERTY_MISSING_METHOD_DESCRIPTOR, CONCRETE_SIGNATURE);

    // throw new MissingPropertyException(name, <managed-type>.class)
    methodVisitor.visitTypeInsn(NEW, MISSING_PROPERTY_EXCEPTION_TYPE);
    methodVisitor.visitInsn(DUP);
    putFirstMethodArgumentOnStack(methodVisitor);
    putClassOnStack(methodVisitor, managedTypeClass);
    methodVisitor.visitMethodInsn(
        INVOKESPECIAL,
        MISSING_PROPERTY_EXCEPTION_TYPE,
        "<init>",
        MISSING_PROPERTY_CONSTRUCTOR_DESCRIPTOR,
        false);
    finishVisitingMethod(methodVisitor, ATHROW);

    // Object propertyMissing(String name, Object value)

    methodVisitor =
        declareMethod(
            visitor, "propertyMissing", SET_PROPERTY_MISSING_METHOD_DESCRIPTOR, CONCRETE_SIGNATURE);

    // throw new MissingPropertyException(name, <managed-type>.class)
    methodVisitor.visitTypeInsn(NEW, MISSING_PROPERTY_EXCEPTION_TYPE);
    methodVisitor.visitInsn(DUP);
    putFirstMethodArgumentOnStack(methodVisitor);
    putClassOnStack(methodVisitor, managedTypeClass);
    methodVisitor.visitMethodInsn(
        INVOKESPECIAL,
        MISSING_PROPERTY_EXCEPTION_TYPE,
        "<init>",
        MISSING_PROPERTY_CONSTRUCTOR_DESCRIPTOR,
        false);
    finishVisitingMethod(methodVisitor, ATHROW);

    // Object methodMissing(String name, Object args)
    methodVisitor =
        declareMethod(
            visitor, "methodMissing", METHOD_MISSING_METHOD_DESCRIPTOR, CONCRETE_SIGNATURE);

    // throw new MissingMethodException(name, <managed-type>.class, args)
    methodVisitor.visitTypeInsn(NEW, MISSING_METHOD_EXCEPTION_TYPE);
    methodVisitor.visitInsn(DUP);
    putMethodArgumentOnStack(methodVisitor, 1);
    putClassOnStack(methodVisitor, managedTypeClass);
    putMethodArgumentOnStack(methodVisitor, 2);
    methodVisitor.visitTypeInsn(CHECKCAST, OBJECT_ARRAY_TYPE);
    methodVisitor.visitMethodInsn(
        INVOKESPECIAL,
        MISSING_METHOD_EXCEPTION_TYPE,
        "<init>",
        MISSING_METHOD_EXCEPTION_CONSTRUCTOR_DESCRIPTOR,
        false);
    finishVisitingMethod(methodVisitor, ATHROW);
  }
  // the overload of type Object for Groovy coercions:  public void setFoo(Object foo)
  private void createTypeConvertingSetter(
      ClassVisitor visitor, Type generatedType, ModelProperty<?> property) {
    if (!property.isWritable() || !(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 = property.getSetter().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
    methodVisitor.visitMethodInsn(
        INVOKEINTERFACE,
        TYPE_CONVERTER_TYPE.getInternalName(),
        "convert",
        COERCE_TO_SCALAR_DESCRIPTOR,
        true);
    methodVisitor.visitTypeInsn(CHECKCAST, boxedType.getInternalName());

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

    // invoke the typed setter, popping 'this' and 'converted' from the stack
    methodVisitor.visitMethodInsn(
        INVOKEVIRTUAL,
        generatedType.getInternalName(),
        setter.getName(),
        Type.getMethodDescriptor(Type.VOID_TYPE, propertyType),
        false);
    finishVisitingMethod(methodVisitor);
  }
 private void writeHashCodeMethod(ClassVisitor visitor, Type generatedType) {
   MethodVisitor methodVisitor =
       declareMethod(visitor, "hashCode", HASH_CODE_METHOD_DESCRIPTOR, null);
   methodVisitor.visitVarInsn(ALOAD, 0);
   methodVisitor.visitMethodInsn(
       INVOKEVIRTUAL,
       generatedType.getInternalName(),
       "getBackingNode",
       GET_BACKING_NODE_METHOD_DESCRIPTOR,
       false);
   methodVisitor.visitMethodInsn(
       INVOKEINTERFACE, MUTABLE_MODEL_NODE_TYPE, "hashCode", HASH_CODE_METHOD_DESCRIPTOR, true);
   methodVisitor.visitInsn(IRETURN);
   finishVisitingMethod(methodVisitor, Opcodes.IRETURN);
 }
 private void invokeStateSetMethod(MethodVisitor methodVisitor) {
   methodVisitor.visitMethodInsn(
       INVOKEINTERFACE,
       MODEL_ELEMENT_STATE_TYPE_INTERNAL_NAME,
       "set",
       STATE_SET_METHOD_DESCRIPTOR,
       true);
 }
 private void invokeSuperMethod(MethodVisitor methodVisitor, Class<?> superClass, Method method) {
   putThisOnStack(methodVisitor);
   methodVisitor.visitMethodInsn(
       INVOKESPECIAL,
       Type.getInternalName(superClass),
       method.getName(),
       Type.getMethodDescriptor(method),
       false);
 }
 private void boxType(MethodVisitor methodVisitor, Class<?> primitiveType) {
   Class<?> boxedType = BOXED_TYPES.get(primitiveType);
   methodVisitor.visitMethodInsn(
       INVOKESTATIC,
       Type.getInternalName(boxedType),
       "valueOf",
       "(" + Type.getDescriptor(primitiveType) + ")" + Type.getDescriptor(boxedType),
       false);
 }
 private void invokeSuperConstructor(MethodVisitor constructorVisitor, Type superclassType) {
   putThisOnStack(constructorVisitor);
   constructorVisitor.visitMethodInsn(
       INVOKESPECIAL,
       superclassType.getInternalName(),
       CONSTRUCTOR_NAME,
       Type.getMethodDescriptor(Type.VOID_TYPE),
       false);
 }
 private void writeManagedTypeStaticField(
     Type generatedType, Class<?> managedTypeClass, MethodVisitor constructorVisitor) {
   constructorVisitor.visitLdcInsn(Type.getType(managedTypeClass));
   constructorVisitor.visitMethodInsn(
       INVOKESTATIC, MODELTYPE_INTERNAL_NAME, "of", MODELTYPE_OF_METHOD_DESCRIPTOR, false);
   constructorVisitor.visitFieldInsn(
       PUTSTATIC,
       generatedType.getInternalName(),
       MANAGED_TYPE_FIELD_NAME,
       Type.getDescriptor(ModelType.class));
 }
  private void throwExceptionBecauseCalledOnItself(MethodVisitor methodVisitor) {
    String exceptionInternalName = Type.getInternalName(UnsupportedOperationException.class);
    methodVisitor.visitTypeInsn(NEW, exceptionInternalName);
    methodVisitor.visitInsn(DUP);
    putConstantOnStack(methodVisitor, "Calling setters of a managed type on itself is not allowed");

    String constructorDescriptor = Type.getMethodDescriptor(Type.VOID_TYPE, STRING_TYPE);
    methodVisitor.visitMethodInsn(
        INVOKESPECIAL, exceptionInternalName, CONSTRUCTOR_NAME, constructorDescriptor, false);
    methodVisitor.visitInsn(ATHROW);
  }
Exemplo n.º 10
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 private void writeDefaultToString(ClassVisitor visitor, Type generatedType) {
   MethodVisitor methodVisitor =
       declareMethod(visitor, "toString", TO_STRING_METHOD_DESCRIPTOR, CONCRETE_SIGNATURE);
   putStateFieldValueOnStack(methodVisitor, generatedType);
   methodVisitor.visitMethodInsn(
       INVOKEINTERFACE,
       MODEL_ELEMENT_STATE_TYPE_INTERNAL_NAME,
       "getDisplayName",
       TO_STRING_METHOD_DESCRIPTOR,
       true);
   finishVisitingMethod(methodVisitor, ARETURN);
 }
Exemplo n.º 11
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 private void writeDelegatingToString(
     ClassVisitor visitor, Type generatedType, Type delegateType) {
   MethodVisitor methodVisitor =
       declareMethod(visitor, "toString", TO_STRING_METHOD_DESCRIPTOR, CONCRETE_SIGNATURE);
   putDelegateFieldValueOnStack(methodVisitor, generatedType, delegateType);
   methodVisitor.visitMethodInsn(
       INVOKEVIRTUAL,
       delegateType.getInternalName(),
       "getDisplayName",
       TO_STRING_METHOD_DESCRIPTOR,
       false);
   finishVisitingMethod(methodVisitor, ARETURN);
 }
Exemplo n.º 12
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 private void invokeDelegateMethod(
     MethodVisitor methodVisitor, Type generatedType, Type delegateType, Method method) {
   putDelegateFieldValueOnStack(methodVisitor, generatedType, delegateType);
   Class<?>[] parameterTypes = method.getParameterTypes();
   for (int paramNo = 0; paramNo < parameterTypes.length; paramNo++) {
     putMethodArgumentOnStack(methodVisitor, Type.getType(parameterTypes[paramNo]), paramNo + 1);
   }
   methodVisitor.visitMethodInsn(
       INVOKEVIRTUAL,
       delegateType.getInternalName(),
       method.getName(),
       Type.getMethodDescriptor(method),
       false);
 }
Exemplo n.º 13
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 private void writeEqualsMethod(ClassVisitor cw, Type generatedType) {
   MethodVisitor methodVisitor =
       cw.visitMethod(Opcodes.ACC_PUBLIC, "equals", EQUALS_METHOD_DESCRIPTOR, null, null);
   methodVisitor.visitCode();
   methodVisitor.visitVarInsn(ALOAD, 0);
   methodVisitor.visitVarInsn(ALOAD, 1);
   Label notSameLabel = new Label();
   methodVisitor.visitJumpInsn(IF_ACMPNE, notSameLabel);
   methodVisitor.visitInsn(ICONST_1);
   methodVisitor.visitInsn(IRETURN);
   methodVisitor.visitLabel(notSameLabel);
   methodVisitor.visitVarInsn(ALOAD, 1);
   methodVisitor.visitTypeInsn(INSTANCEOF, MANAGED_INSTANCE_TYPE);
   Label notManagedInstanceLabel = new Label();
   methodVisitor.visitJumpInsn(IFNE, notManagedInstanceLabel);
   methodVisitor.visitInsn(ICONST_0);
   methodVisitor.visitInsn(IRETURN);
   methodVisitor.visitLabel(notManagedInstanceLabel);
   methodVisitor.visitVarInsn(ALOAD, 0);
   methodVisitor.visitMethodInsn(
       INVOKEVIRTUAL,
       generatedType.getInternalName(),
       "getBackingNode",
       GET_BACKING_NODE_METHOD_DESCRIPTOR,
       false);
   methodVisitor.visitVarInsn(ALOAD, 1);
   methodVisitor.visitTypeInsn(CHECKCAST, MANAGED_INSTANCE_TYPE);
   methodVisitor.visitMethodInsn(
       INVOKEINTERFACE,
       MANAGED_INSTANCE_TYPE,
       "getBackingNode",
       GET_BACKING_NODE_METHOD_DESCRIPTOR,
       true);
   methodVisitor.visitMethodInsn(
       INVOKEINTERFACE, MUTABLE_MODEL_NODE_TYPE, "equals", EQUALS_METHOD_DESCRIPTOR, true);
   finishVisitingMethod(methodVisitor, Opcodes.IRETURN);
 }
Exemplo n.º 14
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 private void writeManagedInstanceGetBackingNodeMethod(ClassVisitor visitor, Type generatedType) {
   MethodVisitor methodVisitor =
       declareMethod(
           visitor,
           "getBackingNode",
           GET_BACKING_NODE_METHOD_DESCRIPTOR,
           CONCRETE_SIGNATURE,
           ACC_PUBLIC | ACC_SYNTHETIC);
   putStateFieldValueOnStack(methodVisitor, generatedType);
   methodVisitor.visitMethodInsn(
       INVOKEINTERFACE,
       MODEL_ELEMENT_STATE_TYPE_INTERNAL_NAME,
       "getBackingNode",
       GET_BACKING_NODE_METHOD_DESCRIPTOR,
       true);
   finishVisitingMethod(methodVisitor, ARETURN);
 }
Exemplo n.º 15
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 private void unboxType(MethodVisitor methodVisitor, Class<?> primitiveClass) {
   // Float f = (Float) tmp
   // f==null?0:f.floatValue()
   Class<?> boxedType = BOXED_TYPES.get(primitiveClass);
   Type primitiveType = Type.getType(primitiveClass);
   methodVisitor.visitTypeInsn(CHECKCAST, Type.getInternalName(boxedType));
   methodVisitor.visitInsn(DUP);
   Label exit = new Label();
   Label elseValue = new Label();
   methodVisitor.visitJumpInsn(IFNONNULL, elseValue);
   methodVisitor.visitInsn(POP);
   pushDefaultValue(methodVisitor, primitiveClass);
   methodVisitor.visitJumpInsn(GOTO, exit);
   methodVisitor.visitLabel(elseValue);
   methodVisitor.visitMethodInsn(
       INVOKEVIRTUAL,
       Type.getInternalName(boxedType),
       primitiveClass.getSimpleName() + "Value",
       Type.getMethodDescriptor(primitiveType),
       false);
   methodVisitor.visitLabel(exit);
 }
Exemplo n.º 16
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  private void writeSetMethod(ClassVisitor visitor, Type generatedType, ModelProperty<?> property) {
    if (property.isWritable() && property.getSchema() instanceof ScalarValueSchema) {

      // TODO - should we support this?
      // Adds a void $propName(Object value) method that sets the value
      MethodVisitor methodVisitor =
          declareMethod(
              visitor,
              property.getName(),
              Type.getMethodDescriptor(Type.VOID_TYPE, OBJECT_TYPE),
              null);
      putThisOnStack(methodVisitor);
      putFirstMethodArgumentOnStack(methodVisitor);
      methodVisitor.visitMethodInsn(
          INVOKEVIRTUAL,
          generatedType.getInternalName(),
          property.getSetter().getName(),
          Type.getMethodDescriptor(Type.VOID_TYPE, OBJECT_TYPE),
          false);
      finishVisitingMethod(methodVisitor);
    }
  }
Exemplo n.º 17
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 private void putClassOnStack(MethodVisitor methodVisitor, Class<?> managedTypeClass) {
   putConstantOnStack(methodVisitor, managedTypeClass.getName());
   methodVisitor.visitMethodInsn(
       INVOKESTATIC, CLASS_INTERNAL_NAME, "forName", FOR_NAME_METHOD_DESCRIPTOR, false);
 }
Exemplo n.º 18
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  private void writeConfigureMethod(
      ClassVisitor visitor, Type generatedType, ModelProperty<?> property) {
    if (!property.isWritable() && property.getSchema() instanceof CompositeSchema) {
      // Adds a void $propName(Closure<?> cl) method that delegates to model state

      MethodVisitor methodVisitor =
          declareMethod(
              visitor,
              property.getName(),
              Type.getMethodDescriptor(Type.VOID_TYPE, CLOSURE_TYPE),
              null);
      putStateFieldValueOnStack(methodVisitor, generatedType);
      putConstantOnStack(methodVisitor, property.getName());
      putFirstMethodArgumentOnStack(methodVisitor);
      methodVisitor.visitMethodInsn(
          INVOKEINTERFACE,
          MODEL_ELEMENT_STATE_TYPE_INTERNAL_NAME,
          "apply",
          STATE_APPLY_METHOD_DESCRIPTOR,
          true);
      finishVisitingMethod(methodVisitor);
      return;
    }
    if (!property.isWritable() && property.getSchema() instanceof UnmanagedImplStructSchema) {
      UnmanagedImplStructSchema<?> structSchema =
          (UnmanagedImplStructSchema<?>) property.getSchema();
      if (!structSchema.isAnnotated()) {
        return;
      }

      // Adds a void $propName(Closure<?> cl) method that executes the closure
      MethodVisitor methodVisitor =
          declareMethod(
              visitor,
              property.getName(),
              Type.getMethodDescriptor(Type.VOID_TYPE, CLOSURE_TYPE),
              null);
      putThisOnStack(methodVisitor);
      methodVisitor.visitMethodInsn(
          INVOKEVIRTUAL,
          generatedType.getInternalName(),
          property.getGetters().get(0).getName(),
          Type.getMethodDescriptor(Type.getType(property.getType().getConcreteClass())),
          false);
      putFirstMethodArgumentOnStack(methodVisitor);
      methodVisitor.visitMethodInsn(
          INVOKESTATIC,
          Type.getInternalName(ClosureBackedAction.class),
          "execute",
          Type.getMethodDescriptor(Type.VOID_TYPE, OBJECT_TYPE, CLOSURE_TYPE),
          false);
      finishVisitingMethod(methodVisitor);
      return;
    }

    // Adds a void $propName(Closure<?> cl) method that throws MME, to avoid attempts to convert
    // closure to something else
    MethodVisitor methodVisitor =
        declareMethod(
            visitor,
            property.getName(),
            Type.getMethodDescriptor(Type.VOID_TYPE, CLOSURE_TYPE),
            null);
    putThisOnStack(methodVisitor);
    putConstantOnStack(methodVisitor, property.getName());
    methodVisitor.visitInsn(Opcodes.ICONST_1);
    methodVisitor.visitTypeInsn(Opcodes.ANEWARRAY, OBJECT_TYPE.getInternalName());
    methodVisitor.visitInsn(Opcodes.DUP);
    methodVisitor.visitInsn(Opcodes.ICONST_0);
    putFirstMethodArgumentOnStack(methodVisitor);
    methodVisitor.visitInsn(Opcodes.AASTORE);
    methodVisitor.visitMethodInsn(
        INVOKEVIRTUAL,
        generatedType.getInternalName(),
        "methodMissing",
        METHOD_MISSING_METHOD_DESCRIPTOR,
        false);
    finishVisitingMethod(methodVisitor);
  }