Commit 5df03991 authored by Emilio Cobos Álvarez's avatar Emilio Cobos Álvarez
Browse files

Bug 1832065 - Remove HasSimpleFFI. r=boris 

It's completely unsused and we don't want to use it any time soon, see
bug 1831539 and related.

Differential Revision: https://phabricator.services.mozilla.com/D177497
parent e506fbfa

servo/components/style/gecko_bindings/sugar/ownership.rs

+0 −37
Original line number Diff line number Diff line
@@ -19,43 +19,6 @@ pub unsafe trait HasFFI: Sized + 'static { 
    type FFIType: Sized;

}



/// Indicates that a given Servo type has the same layout as the corresponding

/// `HasFFI::FFIType` type.

pub unsafe trait HasSimpleFFI: HasFFI {

    #[inline]

    /// Given a Servo-side reference, converts it to an FFI-safe reference which

    /// can be passed to Gecko.

    ///

    /// &ServoType -> &GeckoType

    fn as_ffi(&self) -> &Self::FFIType {

        unsafe { transmute(self) }

    }

    #[inline]

    /// Given a Servo-side mutable reference, converts it to an FFI-safe mutable

    /// reference which can be passed to Gecko.

    ///

    /// &mut ServoType -> &mut GeckoType

    fn as_ffi_mut(&mut self) -> &mut Self::FFIType {

        unsafe { transmute(self) }

    }

    #[inline]

    /// Given an FFI-safe reference obtained from Gecko converts it to a

    /// Servo-side reference.

    ///

    /// &GeckoType -> &ServoType

    fn from_ffi(ffi: &Self::FFIType) -> &Self {

        unsafe { transmute(ffi) }

    }

    #[inline]

    /// Given an FFI-safe mutable reference obtained from Gecko converts it to a

    /// Servo-side mutable reference.

    ///

    /// &mut GeckoType -> &mut ServoType

    fn from_ffi_mut(ffi: &mut Self::FFIType) -> &mut Self {

        unsafe { transmute(ffi) }

    }

}



/// Helper trait for conversions between FFI Strong/Borrowed types and Arcs

///

/// Should be implemented by types which are passed over FFI as Arcs via Strong