Hygeine for #[pyclass] enums.

Author: jovenlin0527

pyo3-macros-backend/src/pyclass.rs

@@ -471,7 +471,7 @@ fn impl_enum_class(
             fn __pyo3__repr__(&self) -> &'static str {
                 match self {
                     #(#variants_repr)*
-                    _ => unreachable!("Unsupported variant type."),
+                    _ => ::core::unreachable!("Unsupported variant type."),
                 }
             }
         }

pyo3-macros-backend/src/pyimpl.rs

@@ -234,9 +234,9 @@ pub fn gen_default_slot_impls(cls: &syn::Ident, method_defs: Vec<TokenStream>) -
         impl #cls {
             #(#method_defs)*
         }
-        impl ::pyo3::class::impl_::PyClassDefaultSlots<#cls>
-            for ::pyo3::class::impl_::PyClassImplCollector<#cls> {
-                fn py_class_default_slots(self) -> &'static [::pyo3::ffi::PyType_Slot] {
+        impl _pyo3::class::impl_::PyClassDefaultSlots<#cls>
+            for _pyo3::class::impl_::PyClassImplCollector<#cls> {
+                fn py_class_default_slots(self) -> &'static [_pyo3::ffi::PyType_Slot] {
                     &[#(#proto_impls),*]
                 }
         }

src/test_hygiene/pyclass.rs

@@ -28,3 +28,9 @@ pub struct Bar {
     #[pyo3(get, set)]
     c: ::std::option::Option<crate::Py<Foo2>>,
 }
+
+#[crate::pyclass]
+#[pyo3(crate = "crate")]
+pub enum Enum {
+    Var0,
+}