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bpo-46430: Intern strings in deep-frozen modules (GH-30683)
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@ -279,6 +279,8 @@ void _Py_Specialize_CompareOp(PyObject *lhs, PyObject *rhs, _Py_CODEUNIT *instr,
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/* Deallocator function for static codeobjects used in deepfreeze.py */
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void _PyStaticCode_Dealloc(PyCodeObject *co);
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/* Function to intern strings of codeobjects */
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void _PyStaticCode_InternStrings(PyCodeObject *co);
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#ifdef Py_STATS
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@ -0,0 +1 @@
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Intern strings in deep-frozen modules. Patch by Kumar Aditya.
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@ -1924,3 +1924,15 @@ _PyStaticCode_Dealloc(PyCodeObject *co)
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co->co_weakreflist = NULL;
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}
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}
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void
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_PyStaticCode_InternStrings(PyCodeObject *co)
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{
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int res = intern_strings(co->co_names);
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assert(res == 0);
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res = intern_string_constants(co->co_consts, NULL);
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assert(res == 0);
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res = intern_strings(co->co_localsplusnames);
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assert(res == 0);
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(void)res;
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}
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@ -279,6 +279,7 @@ def generate_code(self, name: str, code: types.CodeType) -> str:
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self.write(f".co_cellvars = {co_cellvars},")
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self.write(f".co_freevars = {co_freevars},")
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self.deallocs.append(f"_PyStaticCode_Dealloc(&{name});")
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self.patchups.append(f"_PyStaticCode_InternStrings(&{name});")
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return f"& {name}.ob_base"
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def generate_tuple(self, name: str, t: Tuple[object, ...]) -> str:
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