Fix return type assumption about optimised str() call in Py2.

f5f64f5b · Stefan Behnel · 5ab92ce5 · f5f64f5b
Commit f5f64f5b authored Apr 02, 2020 by Stefan Behnel
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Cython/Compiler/Optimize.py Cython/Compiler/Optimize.py +1 -1

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--- a/Cython/Compiler/Optimize.py
+++ b/Cython/Compiler/Optimize.py
@@ -2313,7 +2313,7 @@ class OptimizeBuiltinCalls(Visitor.NodeRefCleanupMixin,
            node, function.obj, attr_name, arg_list)
    PyObject_String_func_type = PyrexTypes.CFuncType(
-        Builtin.str_type, [
+        PyrexTypes.py_object_type, [  # Change this to Builtin.str_type when removing Py2 support.
            PyrexTypes.CFuncTypeArg("obj", PyrexTypes.py_object_type, None)
            ])