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fix(ceval): synthesise __ne__ from __eq__ instead of raising TypeError

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This commit is contained in:
Nikhil Goyal 2026-04-29 02:51:41 +05:30
parent 826b6f40f9
commit 6def9aac84
1 changed files with 14 additions and 2 deletions
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16
src/interpreter/ceval.c
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@ -81,6 +81,19 @@ static bool unpack_dict_to_buffer(py_Ref key, py_Ref val, void* ctx) {
return TypeError("keywords must be strings, not '%t'", key->type);
}
static bool object__ne__default(int argc, py_Ref argv) {
PY_CHECK_ARGC(2);
py_Ref eq_slot = py_tpfindmagic(py_arg(0)->type, __eq__);
if(!eq_slot) {
py_newnotimplemented(py_retval());
return true;
}
if(!py_call(eq_slot, 2, argv)) return false;
if(py_istype(py_retval(), tp_NotImplementedType)) return true;
py_newbool(py_retval(), !py_tobool(py_retval()));
return true;
}
FrameResult VM__run_top_frame(VM* self) {
py_Frame* frame = self->top_frame;
Bytecode* co_codes;
@ -1081,8 +1094,7 @@ __NEXT_STEP:
py_TValue* slot_eq = py_getdict(&ti->self, __eq__);
py_TValue* slot_ne = py_getdict(&ti->self, __ne__);
if(slot_eq && !slot_ne) {
TypeError("'%n' implements '__eq__' but not '__ne__'", ti->name);
goto __ERROR;
py_bindmagic(ti->index, __ne__, object__ne__default);
}
}
// class with decorator is unsafe currently