Jeremy Fitzhardinge jsgf

I hereby claim:

To claim this, I am signing this object:

	-- Simplified Rust crate model
	--
	-- Crates form a dependency DAG, starting from single top-level target (Binary)
	-- Traits implemented for Types
	-- Simple impls (no blanket/parameterized impls)
	-- Orphan rule
	-- assertion that implementations are globally coherent

	-- Trait is define in exactly one crate
	sig Trait {

	use futures::{Async, AsyncSink, Future, Poll};
	use futures::stream::{Fuse, Stream};
	use futures::sink::Sink;

	/// Fork a Stream into two
	///
	/// Returns a Future for a process that consumes items from a Stream and
	/// forwards them to two sinks depending on a predicate. If the predicate
	/// returns false, send the value to out1, otherwise out2.
	pub fn streamfork<In, Out1, Out2, F, E>(inp: In, out1: Out1, out2: Out2, pred: F)

	/* automatically generated by rust-bindgen */

	#[repr(C)]
	pub struct __BindgenUnionField<T>(::std::marker::PhantomData<T>);
	impl <T> __BindgenUnionField<T> {
	#[inline]
	pub fn new() -> Self { __BindgenUnionField(::std::marker::PhantomData) }
	#[inline]
	pub unsafe fn as_ref(&self) -> &T { ::std::mem::transmute(self) }
	#[inline]

	/* automatically generated by rust-bindgen */

	#[repr(C)]
	pub struct _bindgen_mod_id_1_basic_ostream__bindgen_vtable {
	}
	#[repr(C)]
	#[derive(Debug, Copy, Clone)]
	pub struct _bindgen_mod_id_1_basic_ostream<_CharT, _Traits> {
	pub vtable_: *const _bindgen_mod_id_1_basic_ostream__bindgen_vtable,
	pub _phantom_0: ::std::marker::PhantomData<_CharT>,