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"Stateless" code is a function or code object which does not rely on external state or internal state. It may rely on arguments and builtins, but not globals or a closure. I've left a comment in pycore_code.h that provides more detail. We also add _PyFunction_VerifyStateless(). The new functions will be used in several later changes that facilitate "sharing" functions and code objects between interpreters.
48 lines
1.2 KiB
C
48 lines
1.2 KiB
C
#ifndef Py_INTERNAL_FUNCTION_H
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#define Py_INTERNAL_FUNCTION_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#ifndef Py_BUILD_CORE
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# error "this header requires Py_BUILD_CORE define"
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#endif
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extern PyObject* _PyFunction_Vectorcall(
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PyObject *func,
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PyObject *const *stack,
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size_t nargsf,
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PyObject *kwnames);
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#define FUNC_VERSION_UNSET 0
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#define FUNC_VERSION_CLEARED 1
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#define FUNC_VERSION_FIRST_VALID 2
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extern PyFunctionObject* _PyFunction_FromConstructor(PyFrameConstructor *constr);
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static inline int
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_PyFunction_IsVersionValid(uint32_t version)
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{
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return version >= FUNC_VERSION_FIRST_VALID;
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}
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extern uint32_t _PyFunction_GetVersionForCurrentState(PyFunctionObject *func);
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PyAPI_FUNC(void) _PyFunction_SetVersion(PyFunctionObject *func, uint32_t version);
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void _PyFunction_ClearCodeByVersion(uint32_t version);
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PyFunctionObject *_PyFunction_LookupByVersion(uint32_t version, PyObject **p_code);
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extern PyObject *_Py_set_function_type_params(
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PyThreadState* unused, PyObject *func, PyObject *type_params);
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/* See pycore_code.h for explanation about what "stateless" means. */
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PyAPI_FUNC(int)
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_PyFunction_VerifyStateless(PyThreadState *, PyObject *);
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#ifdef __cplusplus
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}
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#endif
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#endif /* !Py_INTERNAL_FUNCTION_H */
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