Rollup merge of #94493 - oribenshir:feature/ISSUE-78543_async_fn_in_foreign_crate_diag_2, r=davidtwco

Improved diagnostic on failure to meet send bound on future in a foreign crate

Provide a better diagnostic on failure to meet send bound on futures in a foreign crate.

fixes #78543

1 files changed, 19 insertions, 0 deletions

diff --git a/compiler/rustc_metadata/src/rmeta/decoder.rs b/compiler/rustc_metadata/src/rmeta/decoder.rs
index 611694a0d30..c0f2319f003 100644
--- a/compiler/rustc_metadata/src/rmeta/decoder.rs
+++ b/compiler/rustc_metadata/src/rmeta/decoder.rs
@@ -28,6 +28,7 @@ use rustc_middle::mir::interpret::{AllocDecodingSession, AllocDecodingState};
 use rustc_middle::thir;
 use rustc_middle::ty::codec::TyDecoder;
 use rustc_middle::ty::fast_reject::SimplifiedType;
+use rustc_middle::ty::GeneratorDiagnosticData;
 use rustc_middle::ty::{self, Ty, TyCtxt, Visibility};
 use rustc_serialize::{opaque, Decodable, Decoder};
 use rustc_session::cstore::{
@@ -1725,6 +1726,24 @@ impl<'a, 'tcx> CrateMetadataRef<'a> {
                 .collect()
         })
     }
+
+    fn get_generator_diagnostic_data(
+        self,
+        tcx: TyCtxt<'tcx>,
+        id: DefIndex,
+    ) -> Option<GeneratorDiagnosticData<'tcx>> {
+        self.root
+            .tables
+            .generator_diagnostic_data
+            .get(self, id)
+            .map(|param| param.decode((self, tcx)))
+            .map(|generator_data| GeneratorDiagnosticData {
+                generator_interior_types: generator_data.generator_interior_types,
+                hir_owner: generator_data.hir_owner,
+                nodes_types: generator_data.nodes_types,
+                adjustments: generator_data.adjustments,
+            })
+    }
 }
 
 impl CrateMetadata {