diff options
Diffstat (limited to '')
-rw-r--r-- | compiler/rustc_trait_selection/src/traits/error_reporting/on_unimplemented.rs | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/compiler/rustc_trait_selection/src/traits/error_reporting/on_unimplemented.rs b/compiler/rustc_trait_selection/src/traits/error_reporting/on_unimplemented.rs index e11a42201..5eef54c63 100644 --- a/compiler/rustc_trait_selection/src/traits/error_reporting/on_unimplemented.rs +++ b/compiler/rustc_trait_selection/src/traits/error_reporting/on_unimplemented.rs @@ -1,17 +1,17 @@ use super::{ ObligationCauseCode, OnUnimplementedDirective, OnUnimplementedNote, PredicateObligation, }; -use crate::infer::InferCtxt; +use crate::infer::error_reporting::TypeErrCtxt; use rustc_hir as hir; use rustc_hir::def_id::DefId; -use rustc_middle::ty::subst::{Subst, SubstsRef}; +use rustc_middle::ty::SubstsRef; use rustc_middle::ty::{self, GenericParamDefKind}; use rustc_span::symbol::sym; use std::iter; use super::InferCtxtPrivExt; -pub trait InferCtxtExt<'tcx> { +pub trait TypeErrCtxtExt<'tcx> { /*private*/ fn impl_similar_to( &self, @@ -29,7 +29,7 @@ pub trait InferCtxtExt<'tcx> { ) -> OnUnimplementedNote; } -impl<'a, 'tcx> InferCtxtExt<'tcx> for InferCtxt<'a, 'tcx> { +impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { fn impl_similar_to( &self, trait_ref: ty::PolyTraitRef<'tcx>, @@ -164,6 +164,10 @@ impl<'a, 'tcx> InferCtxtExt<'tcx> for InferCtxt<'a, 'tcx> { flags.push((sym::from_desugaring, Some(format!("{:?}", k)))); } + if let ObligationCauseCode::MainFunctionType = obligation.cause.code() { + flags.push((sym::cause, Some("MainFunctionType".to_string()))); + } + // Add all types without trimmed paths. ty::print::with_no_trimmed_paths!({ let generics = self.tcx.generics_of(def_id); |