gh-100227: Move _str_replace_inf to PyInterpreterState (gh-102333)

https://github.com/python/cpython/issues/100227

1 files changed, 14 insertions, 5 deletions

diff --git a/Python/ast_unparse.c b/Python/ast_unparse.c
index 79b2e2f..8aff045 100644
--- a/Python/ast_unparse.c
+++ b/Python/ast_unparse.c
@@ -1,5 +1,6 @@
 #include "Python.h"
 #include "pycore_ast.h"           // expr_ty
+#include "pycore_pystate.h"       // _PyInterpreterState_GET()
 #include "pycore_runtime.h"       // _Py_ID()
 #include <float.h>                // DBL_MAX_10_EXP
 #include <stdbool.h>
@@ -13,7 +14,10 @@ _Py_DECLARE_STR(open_br, "{");
 _Py_DECLARE_STR(dbl_open_br, "{{");
 _Py_DECLARE_STR(close_br, "}");
 _Py_DECLARE_STR(dbl_close_br, "}}");
-#define _str_replace_inf _Py_CACHED_OBJECT(str_replace_inf)
+
+/* We would statically initialize this if doing so were simple enough. */
+#define _str_replace_inf(interp) \
+    _Py_INTERP_CACHED_OBJECT(interp, str_replace_inf)
 
 /* Forward declarations for recursion via helper functions. */
 static PyObject *
@@ -78,10 +82,11 @@ append_repr(_PyUnicodeWriter *writer, PyObject *obj)
     if ((PyFloat_CheckExact(obj) && Py_IS_INFINITY(PyFloat_AS_DOUBLE(obj))) ||
        PyComplex_CheckExact(obj))
     {
+        PyInterpreterState *interp = _PyInterpreterState_GET();
         PyObject *new_repr = PyUnicode_Replace(
             repr,
             &_Py_ID(inf),
-            _str_replace_inf,
+            _str_replace_inf(interp),
             -1
         );
         Py_DECREF(repr);
@@ -916,9 +921,13 @@ append_ast_expr(_PyUnicodeWriter *writer, expr_ty e, int level)
 static int
 maybe_init_static_strings(void)
 {
-    if (!_str_replace_inf &&
-        !(_str_replace_inf = PyUnicode_FromFormat("1e%d", 1 + DBL_MAX_10_EXP))) {
-        return -1;
+    PyInterpreterState *interp = _PyInterpreterState_GET();
+    if (_str_replace_inf(interp) == NULL) {
+        PyObject *tmp = PyUnicode_FromFormat("1e%d", 1 + DBL_MAX_10_EXP);
+        if (tmp == NULL) {
+            return -1;
+        }
+        _str_replace_inf(interp) = tmp;
     }
     return 0;
 }