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-rw-r--r--compiler/rustc_middle/src/ty/generics.rs12
1 files changed, 7 insertions, 5 deletions
diff --git a/compiler/rustc_middle/src/ty/generics.rs b/compiler/rustc_middle/src/ty/generics.rs
index 70a35f137d8..8e6c1cd4bbb 100644
--- a/compiler/rustc_middle/src/ty/generics.rs
+++ b/compiler/rustc_middle/src/ty/generics.rs
@@ -12,7 +12,7 @@ use super::{Clause, EarlyBoundRegion, InstantiatedPredicates, ParamConst, ParamT
 pub enum GenericParamDefKind {
     Lifetime,
     Type { has_default: bool, synthetic: bool },
-    Const { has_default: bool },
+    Const { has_default: bool, is_host_effect: bool },
 }
 
 impl GenericParamDefKind {
@@ -87,7 +87,7 @@ impl GenericParamDef {
             GenericParamDefKind::Type { has_default, .. } if has_default => {
                 Some(tcx.type_of(self.def_id).map_bound(|t| t.into()))
             }
-            GenericParamDefKind::Const { has_default } if has_default => {
+            GenericParamDefKind::Const { has_default, .. } if has_default => {
                 Some(tcx.const_param_default(self.def_id).map_bound(|c| c.into()))
             }
             _ => None,
@@ -187,7 +187,7 @@ impl<'tcx> Generics {
                 GenericParamDefKind::Type { has_default, .. } => {
                     own_defaults.types += has_default as usize;
                 }
-                GenericParamDefKind::Const { has_default } => {
+                GenericParamDefKind::Const { has_default, .. } => {
                     own_defaults.consts += has_default as usize;
                 }
             }
@@ -212,10 +212,12 @@ impl<'tcx> Generics {
     pub fn own_requires_monomorphization(&self) -> bool {
         for param in &self.params {
             match param.kind {
-                GenericParamDefKind::Type { .. } | GenericParamDefKind::Const { .. } => {
+                GenericParamDefKind::Type { .. }
+                | GenericParamDefKind::Const { is_host_effect: false, .. } => {
                     return true;
                 }
-                GenericParamDefKind::Lifetime => {}
+                GenericParamDefKind::Lifetime
+                | GenericParamDefKind::Const { is_host_effect: true, .. } => {}
             }
         }
         false