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


/// `interface nsISubstitutionObserver : nsISupports`
///

/// ```text
/// /**
///  * An observer of substitutions being set or unset on a
///  * SubstitutingProtocolHandler. Useful for receiving asynchronous notification
///  * in a child process after a substitution has been set in the parent process
///  * and is propagated to the child.
///  */
/// ```
///

// 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 nsISubstitutionObserver {
    vtable: *const nsISubstitutionObserverVTable,

    /// 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 nsISubstitutionObserver.
unsafe impl XpCom for nsISubstitutionObserver {
    const IID: nsIID = nsID(0x492c9192, 0x3803, 0x4e2b,
        [0x83, 0x73, 0xd2, 0x5f, 0xe5, 0x5f, 0x55, 0x88]);
}

// 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 nsISubstitutionObserver {
    #[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 nsISubstitutionObserver.
// 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 nsISubstitutionObserverCoerce {
    /// Cheaply cast a value of this type from a `nsISubstitutionObserver`.
    fn coerce_from(v: &nsISubstitutionObserver) -> &Self;
}

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

impl nsISubstitutionObserver {
    /// Cast this `nsISubstitutionObserver` to one of its base interfaces.
    #[inline]
    pub fn coerce<T: nsISubstitutionObserverCoerce>(&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 nsISubstitutionObserver {
    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> nsISubstitutionObserverCoerce for T {
    #[inline]
    fn coerce_from(v: &nsISubstitutionObserver) -> &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 nsISubstitutionObserver
// 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 nsISubstitutionObserverVTable {
    /// We need to include the members from the base interface's vtable at the start
    /// of the VTable definition.
    pub __base: nsISupportsVTable,

    /* void onSetSubstitution (in ACString aRoot, in nsIURI aBaseURI); */
    pub OnSetSubstitution: unsafe extern "system" fn (this: *const nsISubstitutionObserver, aRoot: &::nsstring::nsACString, aBaseURI: *const nsIURI) -> 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 nsISubstitutionObserver {

    /// ```text
    /// /**
    ///      * To be called when a substition has been set or unset on a protocol
    ///      * handler. Unset operations are identified by a null URI argument.
    ///      *
    ///      * @param aRoot the root key of the mapping
    ///      * @param aBaseURI the base URI to be substituted for the root key by the
    ///      *        protocol handler. For notifications triggered by unset
    ///      *        operations (i.e., when is a substitution is removed from the
        ///      *        protocol handler) this argument is null.
    ///      */
    /// ```
    ///

    /// `void onSetSubstitution (in ACString aRoot, in nsIURI aBaseURI);`
    #[inline]
    pub unsafe fn OnSetSubstitution(&self, aRoot: &::nsstring::nsACString, aBaseURI: *const nsIURI) -> nsresult {
        ((*self.vtable).OnSetSubstitution)(self, aRoot, aBaseURI)
    }


}