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GH-120507: Lower the BEFORE_WITH and BEFORE_ASYNC_WITH instructions. (#120640)

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* Remove BEFORE_WITH and BEFORE_ASYNC_WITH instructions.

* Add LOAD_SPECIAL instruction

* Reimplement `with` and `async with` statements using LOAD_SPECIAL
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Mark Shannon 2024-06-18 12:17:46 +01:00 • committed by GitHub
parent 73dc1c678e
commit 9cefcc0ee7
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22 changed files with 663 additions and 651 deletions
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23
Python/ceval.c
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@ -343,6 +343,29 @@ const conversion_func _PyEval_ConversionFuncs[4] = {
[FVC_ASCII] = PyObject_ASCII
};
const _Py_SpecialMethod _Py_SpecialMethods[] = {
[SPECIAL___ENTER__] = {
.name = &_Py_ID(__enter__),
.error = "'%.200s' object does not support the "
"context manager protocol (missed __enter__ method)",
},
[SPECIAL___EXIT__] = {
.name = &_Py_ID(__exit__),
.error = "'%.200s' object does not support the "
"context manager protocol (missed __exit__ method)",
},
[SPECIAL___AENTER__] = {
.name = &_Py_ID(__aenter__),
.error = "'%.200s' object does not support the asynchronous "
"context manager protocol (missed __aenter__ method)",
},
[SPECIAL___AEXIT__] = {
.name = &_Py_ID(__aexit__),
.error = "'%.200s' object does not support the asynchronous "
"context manager protocol (missed __aexit__ method)",
}
};
// PEP 634: Structural Pattern Matching