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authorMatthias Krüger <matthias.krueger@famsik.de>2024-09-28 09:35:10 +0200
committerGitHub <noreply@github.com>2024-09-28 09:35:10 +0200
commit2df6b0773e802b08d1c244e6d07ccb16fecdf209 (patch)
tree4febcef1c9789e24b748dd4f78db29c086794ca0 /compiler
parent9c4b81c2385bea85e3b3cf17db53dcbb70e62fe4 (diff)
parent0bf928968bf442ba0e4d50e8d716edf2dd43cbbc (diff)
downloadrust-2df6b0773e802b08d1c244e6d07ccb16fecdf209.tar.gz
rust-2df6b0773e802b08d1c244e6d07ccb16fecdf209.zip
Rollup merge of #130924 - surechen:fix_130851, r=compiler-errors
Make clashing_extern_declarations considering generic args for ADT field

In following example, G<u16> should be recognized as different from G<u32> :

```rust
#[repr(C)] pub struct G<T> { g: [T; 4] }

pub mod x { extern "C" { pub fn g(_: super::G<u16>); } }
pub mod y { extern "C" { pub fn g(_: super::G<u32>); } }
```

fixes #130851
Diffstat (limited to 'compiler')
-rw-r--r--compiler/rustc_lint/src/foreign_modules.rs6
1 files changed, 3 insertions, 3 deletions
diff --git a/compiler/rustc_lint/src/foreign_modules.rs b/compiler/rustc_lint/src/foreign_modules.rs
index 1ead377607f..816882962be 100644
--- a/compiler/rustc_lint/src/foreign_modules.rs
+++ b/compiler/rustc_lint/src/foreign_modules.rs
@@ -280,7 +280,7 @@ fn structurally_same_type_impl<'tcx>(
 
         ensure_sufficient_stack(|| {
             match (a.kind(), b.kind()) {
-                (&Adt(a_def, _), &Adt(b_def, _)) => {
+                (&Adt(a_def, a_gen_args), &Adt(b_def, b_gen_args)) => {
                     // Only `repr(C)` types can be compared structurally.
                     if !(a_def.repr().c() && b_def.repr().c()) {
                         return false;
@@ -304,8 +304,8 @@ fn structurally_same_type_impl<'tcx>(
                                 seen_types,
                                 tcx,
                                 param_env,
-                                tcx.type_of(a_did).instantiate_identity(),
-                                tcx.type_of(b_did).instantiate_identity(),
+                                tcx.type_of(a_did).instantiate(tcx, a_gen_args),
+                                tcx.type_of(b_did).instantiate(tcx, b_gen_args),
                                 ckind,
                             )
                         },