impl pointee_info_at in TyLayout.

Author: wildarch

src/librustc_codegen_llvm/abi.rs

@@ -18,7 +18,7 @@ use rustc_target::abi::call::ArgType;
 use rustc_codegen_ssa::traits::*;
 
 use rustc_target::abi::{HasDataLayout, LayoutOf, Size, TyLayout, Abi as LayoutAbi};
-use rustc::ty::{self, Ty, Instance};
+use rustc::ty::{self, Ty, Instance, ParamEnv};
 use rustc::ty::layout::{self, PointerKind};
 
 use libc::c_uint;
@@ -484,7 +484,7 @@ impl<'tcx> FnTypeExt<'tcx> for FnType<'tcx, Ty<'tcx>> {
                 }
             }
 
-            if let Some(pointee) = layout.pointee_info_at(cx, offset) {
+            if let Some(pointee) = layout.pointee_info_at(cx, offset, ParamEnv::reveal_all()) {
                 if let Some(kind) = pointee.safe {
                     attrs.pointee_size = pointee.size;
                     attrs.pointee_align = Some(pointee.align);

src/librustc_target/abi/mod.rs

@@ -958,6 +958,10 @@ impl<'a, Ty> TyLayout<'a, Ty> {
     where Ty: TyLayoutMethods<'a, C>, C: LayoutOf<Ty = Ty> {
         Ty::field(self, cx, i)
     }
+    pub fn pointee_info_at<C>(self, cx: &C, offset: Size, param_env: Ty::ParamEnv) -> Option<PointeeInfo> 
+    where Ty: TyLayoutMethods<'a, C>, C: LayoutOf<Ty = Ty> {
+        Ty::pointee_info_at(self, cx, offset, param_env)
+    }
 }
 
 impl<'a, Ty> TyLayout<'a, Ty> {