//
// DO NOT EDIT.  THIS FILE IS GENERATED FROM ../../../dist/idl/nsIRDFObserver.idl
//


/// `interface nsIRDFObserver : nsISupports`
///


// The actual type definition for the interface. This struct has methods
// declared on it which will call through its vtable. You never want to pass
// this type around by value, always pass it behind a reference.

#[repr(C)]
pub struct nsIRDFObserver {
    vtable: *const nsIRDFObserverVTable,

    /// This field is a phantomdata to ensure that the VTable type and any
    /// struct containing it is not safe to send across threads, as XPCOM is
    /// generally not threadsafe.
    ///
    /// XPCOM interfaces in general are not safe to send across threads.
    __nosync: ::std::marker::PhantomData<::std::rc::Rc<u8>>,
}

// Implementing XpCom for an interface exposes its IID, which allows for easy
// use of the `.query_interface<T>` helper method. This also defines that
// method for nsIRDFObserver.
unsafe impl XpCom for nsIRDFObserver {
    const IID: nsIID = nsID(0x3cc75360, 0x484a, 0x11d2,
        [0xbc, 0x16, 0x00, 0x80, 0x5f, 0x91, 0x2f, 0xe7]);
}

// We need to implement the RefCounted trait so we can be used with `RefPtr`.
// This trait teaches `RefPtr` how to manage our memory.
unsafe impl RefCounted for nsIRDFObserver {
    #[inline]
    unsafe fn addref(&self) {
        self.AddRef();
    }
    #[inline]
    unsafe fn release(&self) {
        self.Release();
    }
}

// This trait is implemented on all types which can be coerced to from nsIRDFObserver.
// It is used in the implementation of `fn coerce<T>`. We hide it from the
// documentation, because it clutters it up a lot.
#[doc(hidden)]
pub trait nsIRDFObserverCoerce {
    /// Cheaply cast a value of this type from a `nsIRDFObserver`.
    fn coerce_from(v: &nsIRDFObserver) -> &Self;
}

// The trivial implementation: We can obviously coerce ourselves to ourselves.
impl nsIRDFObserverCoerce for nsIRDFObserver {
    #[inline]
    fn coerce_from(v: &nsIRDFObserver) -> &Self {
        v
    }
}

impl nsIRDFObserver {
    /// Cast this `nsIRDFObserver` to one of its base interfaces.
    #[inline]
    pub fn coerce<T: nsIRDFObserverCoerce>(&self) -> &T {
        T::coerce_from(self)
    }
}

// Every interface struct type implements `Deref` to its base interface. This
// causes methods on the base interfaces to be directly avaliable on the
// object. For example, you can call `.AddRef` or `.QueryInterface` directly
// on any interface which inherits from `nsISupports`.
impl ::std::ops::Deref for nsIRDFObserver {
    type Target = nsISupports;
    #[inline]
    fn deref(&self) -> &nsISupports {
        unsafe {
            ::std::mem::transmute(self)
        }
    }
}

// Ensure we can use .coerce() to cast to our base types as well. Any type which
// our base interface can coerce from should be coercable from us as well.
impl<T: nsISupportsCoerce> nsIRDFObserverCoerce for T {
    #[inline]
    fn coerce_from(v: &nsIRDFObserver) -> &Self {
        T::coerce_from(v)
    }
}

// This struct represents the interface's VTable. A pointer to a statically
// allocated version of this struct is at the beginning of every nsIRDFObserver
// object. It contains one pointer field for each method in the interface. In
// the case where we can't generate a binding for a method, we include a void
// pointer.
#[doc(hidden)]
#[repr(C)]
pub struct nsIRDFObserverVTable {
    /// We need to include the members from the base interface's vtable at the start
    /// of the VTable definition.
    pub __base: nsISupportsVTable,

    /* void onAssert (in nsIRDFDataSource aDataSource, in nsIRDFResource aSource, in nsIRDFResource aProperty, in nsIRDFNode aTarget); */
    pub OnAssert: unsafe extern "system" fn (this: *const nsIRDFObserver, aDataSource: *const nsIRDFDataSource, aSource: *const nsIRDFResource, aProperty: *const nsIRDFResource, aTarget: *const nsIRDFNode) -> nsresult,

    /* void onUnassert (in nsIRDFDataSource aDataSource, in nsIRDFResource aSource, in nsIRDFResource aProperty, in nsIRDFNode aTarget); */
    pub OnUnassert: unsafe extern "system" fn (this: *const nsIRDFObserver, aDataSource: *const nsIRDFDataSource, aSource: *const nsIRDFResource, aProperty: *const nsIRDFResource, aTarget: *const nsIRDFNode) -> nsresult,

    /* void onChange (in nsIRDFDataSource aDataSource, in nsIRDFResource aSource, in nsIRDFResource aProperty, in nsIRDFNode aOldTarget, in nsIRDFNode aNewTarget); */
    pub OnChange: unsafe extern "system" fn (this: *const nsIRDFObserver, aDataSource: *const nsIRDFDataSource, aSource: *const nsIRDFResource, aProperty: *const nsIRDFResource, aOldTarget: *const nsIRDFNode, aNewTarget: *const nsIRDFNode) -> nsresult,

    /* void onMove (in nsIRDFDataSource aDataSource, in nsIRDFResource aOldSource, in nsIRDFResource aNewSource, in nsIRDFResource aProperty, in nsIRDFNode aTarget); */
    pub OnMove: unsafe extern "system" fn (this: *const nsIRDFObserver, aDataSource: *const nsIRDFDataSource, aOldSource: *const nsIRDFResource, aNewSource: *const nsIRDFResource, aProperty: *const nsIRDFResource, aTarget: *const nsIRDFNode) -> nsresult,

    /* void onBeginUpdateBatch (in nsIRDFDataSource aDataSource); */
    pub OnBeginUpdateBatch: unsafe extern "system" fn (this: *const nsIRDFObserver, aDataSource: *const nsIRDFDataSource) -> nsresult,

    /* void onEndUpdateBatch (in nsIRDFDataSource aDataSource); */
    pub OnEndUpdateBatch: unsafe extern "system" fn (this: *const nsIRDFObserver, aDataSource: *const nsIRDFDataSource) -> nsresult,
}


// The implementations of the function wrappers which are exposed to rust code.
// Call these methods rather than manually calling through the VTable struct.
impl nsIRDFObserver {

    /// ```text
    /// /**
    ///      * This method is called whenever a new assertion is made
    ///      * in the data source
    ///      * @param aDataSource the datasource that is issuing
    ///      *   the notification.
    ///      * @param aSource the subject of the assertion
    ///      * @param aProperty the predicate of the assertion
    ///      * @param aTarget the object of the assertion
    ///      */
    /// ```
    ///

    /// `void onAssert (in nsIRDFDataSource aDataSource, in nsIRDFResource aSource, in nsIRDFResource aProperty, in nsIRDFNode aTarget);`
    #[inline]
    pub unsafe fn OnAssert(&self, aDataSource: *const nsIRDFDataSource, aSource: *const nsIRDFResource, aProperty: *const nsIRDFResource, aTarget: *const nsIRDFNode) -> nsresult {
        ((*self.vtable).OnAssert)(self, aDataSource, aSource, aProperty, aTarget)
    }


    /// ```text
    /// /**
    ///      * This method is called whenever an assertion is removed
    ///      * from the data source
    ///      * @param aDataSource the datasource that is issuing
    ///      *   the notification.
    ///      * @param aSource the subject of the assertion
    ///      * @param aProperty the predicate of the assertion
    ///      * @param aTarget the object of the assertion
    ///      */
    /// ```
    ///

    /// `void onUnassert (in nsIRDFDataSource aDataSource, in nsIRDFResource aSource, in nsIRDFResource aProperty, in nsIRDFNode aTarget);`
    #[inline]
    pub unsafe fn OnUnassert(&self, aDataSource: *const nsIRDFDataSource, aSource: *const nsIRDFResource, aProperty: *const nsIRDFResource, aTarget: *const nsIRDFNode) -> nsresult {
        ((*self.vtable).OnUnassert)(self, aDataSource, aSource, aProperty, aTarget)
    }


    /// ```text
    /// /**
    ///      * This method is called when the object of an assertion
    ///      * changes from one value to another.
    ///      * @param aDataSource the datasource that is issuing
    ///      *   the notification.
    ///      * @param aSource the subject of the assertion
    ///      * @param aProperty the predicate of the assertion
    ///      * @param aOldTarget the old object of the assertion
    ///      * @param aNewTarget the new object of the assertion
    ///      */
    /// ```
    ///

    /// `void onChange (in nsIRDFDataSource aDataSource, in nsIRDFResource aSource, in nsIRDFResource aProperty, in nsIRDFNode aOldTarget, in nsIRDFNode aNewTarget);`
    #[inline]
    pub unsafe fn OnChange(&self, aDataSource: *const nsIRDFDataSource, aSource: *const nsIRDFResource, aProperty: *const nsIRDFResource, aOldTarget: *const nsIRDFNode, aNewTarget: *const nsIRDFNode) -> nsresult {
        ((*self.vtable).OnChange)(self, aDataSource, aSource, aProperty, aOldTarget, aNewTarget)
    }


    /// ```text
    /// /**
    ///      * This method is called when the subject of an assertion
    ///      * changes from one value to another.
    ///      * @param aDataSource the datasource that is issuing
    ///      *   the notification.
    ///      * @param aOldSource the old subject of the assertion
    ///      * @param aNewSource the new subject of the assertion
    ///      * @param aProperty the predicate of the assertion
    ///      * @param aTarget the object of the assertion
    ///      */
    /// ```
    ///

    /// `void onMove (in nsIRDFDataSource aDataSource, in nsIRDFResource aOldSource, in nsIRDFResource aNewSource, in nsIRDFResource aProperty, in nsIRDFNode aTarget);`
    #[inline]
    pub unsafe fn OnMove(&self, aDataSource: *const nsIRDFDataSource, aOldSource: *const nsIRDFResource, aNewSource: *const nsIRDFResource, aProperty: *const nsIRDFResource, aTarget: *const nsIRDFNode) -> nsresult {
        ((*self.vtable).OnMove)(self, aDataSource, aOldSource, aNewSource, aProperty, aTarget)
    }


    /// ```text
    /// /**
    ///      * This method is called when a datasource is about to
    ///      * send several notifications at once. The observer can
    ///      * use this as a cue to optimize its behavior. The observer
    ///      * can expect the datasource to call endUpdateBatch() when
    ///      * the group of notifications has completed.
    ///      * @param aDataSource the datasource that is going to
    ///      *   be issuing the notifications.
    ///      */
    /// ```
    ///

    /// `void onBeginUpdateBatch (in nsIRDFDataSource aDataSource);`
    #[inline]
    pub unsafe fn OnBeginUpdateBatch(&self, aDataSource: *const nsIRDFDataSource) -> nsresult {
        ((*self.vtable).OnBeginUpdateBatch)(self, aDataSource)
    }


    /// ```text
    /// /**
    ///      * This method is called when a datasource has completed
    ///      * issuing a notification group.
    ///      * @param aDataSource the datasource that has finished
    ///      *   issuing a group of notifications
    ///      */
    /// ```
    ///

    /// `void onEndUpdateBatch (in nsIRDFDataSource aDataSource);`
    #[inline]
    pub unsafe fn OnEndUpdateBatch(&self, aDataSource: *const nsIRDFDataSource) -> nsresult {
        ((*self.vtable).OnEndUpdateBatch)(self, aDataSource)
    }


}