1 use encoder::EncodeContext;
2 use schema::{Lazy, LazySeq};
4 use rustc_serialize::Encodable;
6 /// The IsolatedEncoder provides facilities to write to crate metadata while
7 /// making sure that anything going through it is also feed into an ICH hasher.
8 pub struct IsolatedEncoder<'a, 'b: 'a, 'tcx: 'b> {
9 pub tcx: TyCtxt<'b, 'tcx, 'tcx>,
10 ecx: &'a mut EncodeContext<'b, 'tcx>,
13 impl<'a, 'b: 'a, 'tcx: 'b> IsolatedEncoder<'a, 'b, 'tcx> {
15 pub fn new(ecx: &'a mut EncodeContext<'b, 'tcx>) -> Self {
23 pub fn lazy<T>(&mut self, value: &T) -> Lazy<T>
29 pub fn lazy_seq<I, T>(&mut self, iter: I) -> LazySeq<T>
30 where I: IntoIterator<Item = T>,
33 self.ecx.lazy_seq(iter)
36 pub fn lazy_seq_ref<'x, I, T>(&mut self, iter: I) -> LazySeq<T>
37 where I: IntoIterator<Item = &'x T>,
40 self.ecx.lazy_seq_ref(iter)
43 pub fn lazy_seq_from_slice<T>(&mut self, slice: &[T]) -> LazySeq<T>
46 self.ecx.lazy_seq_ref(slice.iter())