use `TypingEnv` when no `infcx` is available

the behavior of the type system not only depends on the current
assumptions, but also the currentnphase of the compiler. This is
mostly necessary as we need to decide whether and how to reveal
opaque types. We track this via the `TypingMode`.

1 files changed, 3 insertions, 3 deletions

diff --git a/src/librustdoc/html/render/type_layout.rs b/src/librustdoc/html/render/type_layout.rs
index d85ba3a2b14..9317844956d 100644
--- a/src/librustdoc/html/render/type_layout.rs
+++ b/src/librustdoc/html/render/type_layout.rs
@@ -37,9 +37,9 @@ pub(crate) fn document_type_layout<'a, 'cx: 'a>(
         }
 
         let tcx = cx.tcx();
-        let param_env = tcx.param_env(ty_def_id);
+        let typing_env = ty::TypingEnv::post_analysis(tcx, ty_def_id);
         let ty = tcx.type_of(ty_def_id).instantiate_identity();
-        let type_layout = tcx.layout_of(param_env.and(ty));
+        let type_layout = tcx.layout_of(typing_env.as_query_input(ty));
 
         let variants = if let Ok(type_layout) = type_layout
             && let Variants::Multiple { variants, tag, tag_encoding, .. } =
@@ -71,7 +71,7 @@ pub(crate) fn document_type_layout<'a, 'cx: 'a>(
             Vec::new()
         };
 
-        let type_layout_size = tcx.layout_of(param_env.and(ty)).map(|layout| {
+        let type_layout_size = tcx.layout_of(typing_env.as_query_input(ty)).map(|layout| {
             let is_unsized = layout.is_unsized();
             let is_uninhabited = layout.is_uninhabited();
             let size = layout.size.bytes();