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// // DO NOT EDIT. THIS FILE IS GENERATED FROM ../../../dist/idl/nsIHashable.idl // /// `interface nsIHashable : nsISupports` /// /// ```text /// /** /// * Represents an object that can be stored in a hashtable. /// */ /// ``` /// // 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 nsIHashable { vtable: *const nsIHashableVTable, /// 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 nsIHashable. unsafe impl XpCom for nsIHashable { const IID: nsIID = nsID(0x17e595fa, 0xb57a, 0x4933, [0xbd, 0x0f, 0xb1, 0x81, 0x2e, 0x8a, 0xb1, 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 nsIHashable { #[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 nsIHashable. // 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 nsIHashableCoerce { /// Cheaply cast a value of this type from a `nsIHashable`. fn coerce_from(v: &nsIHashable) -> &Self; } // The trivial implementation: We can obviously coerce ourselves to ourselves. impl nsIHashableCoerce for nsIHashable { #[inline] fn coerce_from(v: &nsIHashable) -> &Self { v } } impl nsIHashable { /// Cast this `nsIHashable` to one of its base interfaces. #[inline] pub fn coerce<T: nsIHashableCoerce>(&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 nsIHashable { 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> nsIHashableCoerce for T { #[inline] fn coerce_from(v: &nsIHashable) -> &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 nsIHashable // 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 nsIHashableVTable { /// We need to include the members from the base interface's vtable at the start /// of the VTable definition. pub __base: nsISupportsVTable, /* boolean equals (in nsIHashable aOther); */ pub Equals: unsafe extern "system" fn (this: *const nsIHashable, aOther: *const nsIHashable, _retval: *mut bool) -> nsresult, /* readonly attribute unsigned long hashCode; */ pub GetHashCode: unsafe extern "system" fn (this: *const nsIHashable, aHashCode: *mut libc::uint32_t) -> 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 nsIHashable { /// ```text /// /** /// * Is this object the equivalent of the other object? /// */ /// ``` /// /// `boolean equals (in nsIHashable aOther);` #[inline] pub unsafe fn Equals(&self, aOther: *const nsIHashable, _retval: *mut bool) -> nsresult { ((*self.vtable).Equals)(self, aOther, _retval) } /// ```text /// /** /// * A generated hashcode for this object. Objects that are equivalent /// * must have the same hash code. Getting this property should never /// * throw an exception! /// */ /// ``` /// /// `readonly attribute unsigned long hashCode;` #[inline] pub unsafe fn GetHashCode(&self, aHashCode: *mut libc::uint32_t) -> nsresult { ((*self.vtable).GetHashCode)(self, aHashCode) } }