PyPy: the PyList_GET/SET macros are defined as functions, the PyTuple_ ones do not exist

CHANGELOG.md

@@ -12,6 +12,10 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 
 - Implement `IntoPy<PyObject>` for `&PathBuf` and `&OsString`. [#1721](https://github.com/PyO3/pyo3/pull/1712)
 
+### Fixed
+
+- Fix crashes on PyPy due to incorrect definitions of `PyList_SET_ITEM`. [#1713](https://github.com/PyO3/pyo3/pull/1713)
+
 ## [0.14.0] - 2021-07-03
 
 ### Packaging

src/ffi/cpython/listobject.rs

@@ -15,17 +15,20 @@ pub struct PyListObject {
 
 /// Macro, trading safety for speed
 #[inline]
+#[cfg(not(PyPy))]
 pub unsafe fn PyList_GET_ITEM(op: *mut PyObject, i: Py_ssize_t) -> *mut PyObject {
     *(*(op as *mut PyListObject)).ob_item.offset(i as isize)
 }
 
 /// Macro, *only* to be used to fill in brand new lists
 #[inline]
+#[cfg(not(PyPy))]
 pub unsafe fn PyList_SET_ITEM(op: *mut PyObject, i: Py_ssize_t, v: *mut PyObject) {
     *(*(op as *mut PyListObject)).ob_item.offset(i as isize) = v;
 }
 
 #[inline]
+#[cfg(not(PyPy))]
 pub unsafe fn PyList_GET_SIZE(op: *mut PyObject) -> Py_ssize_t {
     Py_SIZE(op)
 }

src/ffi/listobject.rs

@@ -52,4 +52,15 @@ extern "C" {
     pub fn PyList_Reverse(arg1: *mut PyObject) -> c_int;
     #[cfg_attr(PyPy, link_name = "PyPyList_AsTuple")]
     pub fn PyList_AsTuple(arg1: *mut PyObject) -> *mut PyObject;
+
+    // CPython macros exported as functions on PyPy
+    #[cfg(PyPy)]
+    #[cfg_attr(PyPy, link_name = "PyPyList_GET_ITEM")]
+    pub fn PyList_GET_ITEM(arg1: *mut PyObject, arg2: Py_ssize_t) -> *mut PyObject;
+    #[cfg(PyPy)]
+    #[cfg_attr(PyPy, link_name = "PyPyList_GET_SIZE")]
+    pub fn PyList_GET_SIZE(arg1: *mut PyObject) -> Py_ssize_t;
+    #[cfg(PyPy)]
+    #[cfg_attr(PyPy, link_name = "PyPyList_SET_ITEM")]
+    pub fn PyList_SET_ITEM(arg1: *mut PyObject, arg2: Py_ssize_t, arg3: *mut PyObject);
 }

src/ffi/tupleobject.rs

@@ -47,7 +47,7 @@ extern "C" {
 
 /// Macro, trading safety for speed
 #[inline]
-#[cfg(not(Py_LIMITED_API))]
+#[cfg(not(any(Py_LIMITED_API, PyPy)))]
 pub unsafe fn PyTuple_GET_ITEM(op: *mut PyObject, i: Py_ssize_t) -> *mut PyObject {
     *(*(op as *mut PyTupleObject))
         .ob_item
@@ -56,14 +56,14 @@ pub unsafe fn PyTuple_GET_ITEM(op: *mut PyObject, i: Py_ssize_t) -> *mut PyObjec
 }
 
 #[inline]
-#[cfg(not(Py_LIMITED_API))]
+#[cfg(not(any(Py_LIMITED_API, PyPy)))]
 pub unsafe fn PyTuple_GET_SIZE(op: *mut PyObject) -> Py_ssize_t {
     Py_SIZE(op)
 }
 
 /// Macro, *only* to be used to fill in brand new tuples
 #[inline]
-#[cfg(not(Py_LIMITED_API))]
+#[cfg(not(any(Py_LIMITED_API, PyPy)))]
 pub unsafe fn PyTuple_SET_ITEM(op: *mut PyObject, i: Py_ssize_t, v: *mut PyObject) {
     *(*(op as *mut PyTupleObject))
         .ob_item

src/types/tuple.rs

@@ -26,9 +26,9 @@ impl PyTuple {
         unsafe {
             let ptr = ffi::PyTuple_New(len as Py_ssize_t);
             for (i, e) in elements_iter.enumerate() {
-                #[cfg(not(Py_LIMITED_API))]
+                #[cfg(not(any(Py_LIMITED_API, PyPy)))]
                 ffi::PyTuple_SET_ITEM(ptr, i as Py_ssize_t, e.to_object(py).into_ptr());
-                #[cfg(Py_LIMITED_API)]
+                #[cfg(any(Py_LIMITED_API, PyPy))]
                 ffi::PyTuple_SetItem(ptr, i as Py_ssize_t, e.to_object(py).into_ptr());
             }
             py.from_owned_ptr(ptr)
@@ -43,9 +43,9 @@ impl PyTuple {
     /// Gets the length of the tuple.
     pub fn len(&self) -> usize {
         unsafe {
-            #[cfg(not(Py_LIMITED_API))]
+            #[cfg(not(any(Py_LIMITED_API, PyPy)))]
             let size = ffi::PyTuple_GET_SIZE(self.as_ptr());
-            #[cfg(Py_LIMITED_API)]
+            #[cfg(any(Py_LIMITED_API, PyPy))]
             let size = ffi::PyTuple_Size(self.as_ptr());
             // non-negative Py_ssize_t should always fit into Rust uint
             size as usize
@@ -79,9 +79,9 @@ impl PyTuple {
     pub fn get_item(&self, index: usize) -> &PyAny {
         assert!(index < self.len());
         unsafe {
-            #[cfg(not(Py_LIMITED_API))]
+            #[cfg(not(any(Py_LIMITED_API, PyPy)))]
             let item = ffi::PyTuple_GET_ITEM(self.as_ptr(), index as Py_ssize_t);
-            #[cfg(Py_LIMITED_API)]
+            #[cfg(any(Py_LIMITED_API, PyPy))]
             let item = ffi::PyTuple_GetItem(self.as_ptr(), index as Py_ssize_t);
 
             self.py().from_borrowed_ptr(item)