Apply static mut array decay fix

Author: Copilot

cpp2rust/converter/converter.cpp

@@ -1986,15 +1986,22 @@ bool Converter::VisitImplicitCastExpr(clang::ImplicitCastExpr *expr) {
       StrCat(keyword::kAs, dest_pointee_const ? "*const u8" : "*mut u8");
       break;
     }
-    Convert(sub_expr);
-    if (clang::isa<clang::StringLiteral>(sub_expr) ||
-        clang::isa<clang::PredefinedExpr>(sub_expr)) {
-      StrCat(".as_ptr()");
-      if (!dest_pointee_const) {
-        StrCat(".cast_mut()");
-      }
+    if (IsGlobalVar(sub_expr)) {
+      StrCat("(&raw", dest_pointee_const ? keyword::kConst : keyword_mut_);
+      Convert(sub_expr);
+      StrCat(").cast::<", GetUnsafeTypeAsString(expr->getType()->getPointeeType()),
+             ">()");
     } else {
-      StrCat(dest_pointee_const ? ".as_ptr()" : ".as_mut_ptr()");
+      Convert(sub_expr);
+      if (clang::isa<clang::StringLiteral>(sub_expr) ||
+          clang::isa<clang::PredefinedExpr>(sub_expr)) {
+        StrCat(".as_ptr()");
+        if (!dest_pointee_const) {
+          StrCat(".cast_mut()");
+        }
+      } else {
+        StrCat(dest_pointee_const ? ".as_ptr()" : ".as_mut_ptr()");
+      }
     }
     break;
   }

tests/unit/out/unsafe/union_tagged_struct_arms.rs

@@ -83,7 +83,7 @@ unsafe fn main_0() -> i32 {
     let mut p_list: Branch = <Branch>::default();
     p_list.choice = Choice_enum::C_LIST;
     p_list.index = 0;
-    p_list.v.list.items = items_4.as_mut_ptr();
+    p_list.v.list.items = (&raw mut items_4).cast::<*mut u8>();
     p_list.v.list.count = 3_i64;
     p_list.v.list.cursor = 1_i64;
     assert!(((((p_list.v.list.count) == (3_i64)) as i32) != 0));