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// // DO NOT EDIT. THIS FILE IS GENERATED FROM ../../../dist/idl/nsINullChannel.idl // /// `interface nsINullChannel : nsISupports` /// /// ```text /// /** /// * This interface is only used in order to mark the fact that /// * an object isn't a complete implementation of its interfaces. /// * For example, a consumer can QI NullHttpChannel to nsINullChannel, /// * to determine if the object is just a dummy implementation of nsIHttpChannel. /// */ /// ``` /// // 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 nsINullChannel { vtable: *const nsINullChannelVTable, /// 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 nsINullChannel. unsafe impl XpCom for nsINullChannel { const IID: nsIID = nsID(0x4610b901, 0xdf41, 0x4bb4, [0xbd, 0x3f, 0xfd, 0x4d, 0x6b, 0x6d, 0x8d, 0x68]); } // 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 nsINullChannel { #[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 nsINullChannel. // 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 nsINullChannelCoerce { /// Cheaply cast a value of this type from a `nsINullChannel`. fn coerce_from(v: &nsINullChannel) -> &Self; } // The trivial implementation: We can obviously coerce ourselves to ourselves. impl nsINullChannelCoerce for nsINullChannel { #[inline] fn coerce_from(v: &nsINullChannel) -> &Self { v } } impl nsINullChannel { /// Cast this `nsINullChannel` to one of its base interfaces. #[inline] pub fn coerce<T: nsINullChannelCoerce>(&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 nsINullChannel { 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> nsINullChannelCoerce for T { #[inline] fn coerce_from(v: &nsINullChannel) -> &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 nsINullChannel // 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 nsINullChannelVTable { /// We need to include the members from the base interface's vtable at the start /// of the VTable definition. pub __base: nsISupportsVTable, } // The implementations of the function wrappers which are exposed to rust code. // Call these methods rather than manually calling through the VTable struct. impl nsINullChannel { }