Use META_PYTHON for MetaPython specific features

Summary: Currently we use ENABLE_LAZY_IMPORTs to toggle lazy imports. That works great but I'm about to need a 2nd ifdef... rather than adding a new thing and needing to update a lot of places let's use a single ifdef for meta Python.

Reviewed By: alexmalyshev, yoney

Differential Revision: D87464662

fbshipit-source-id: bb4c5e1250b389fb9074ff4a64c23fd975702b29

Author: DinoV

Include/cpython/compile.h

@@ -20,7 +20,7 @@
 #define PyCF_ALLOW_TOP_LEVEL_AWAIT 0x2000
 #define PyCF_ALLOW_INCOMPLETE_INPUT 0x4000
 #define PyCF_OPTIMIZED_AST (0x8000 | PyCF_ONLY_AST)
-#ifdef ENABLE_LAZY_IMPORTS
+#ifdef META_PYTHON
 #define PyCF_DISABLE_LAZY_IMPORTS 0x10000
 #define PyCF_COMPILE_MASK (PyCF_ONLY_AST | PyCF_ALLOW_TOP_LEVEL_AWAIT | \
                            PyCF_TYPE_COMMENTS | PyCF_DONT_IMPLY_DEDENT | \

Include/cpython/dictobject.h

@@ -75,7 +75,7 @@ Py_DEPRECATED(3.14) PyAPI_FUNC(PyObject *) _PyDict_Pop(
     PyObject *key,
     PyObject *default_value);
 
-#ifdef ENABLE_LAZY_IMPORTS
+#ifdef META_PYTHON
 PyAPI_FUNC(int) _PyDict_NextKeepLazy(
     PyObject *mp, Py_ssize_t *pos, PyObject **key, PyObject **value);
 PyAPI_FUNC(int) PyDict_NextWithError(

Include/cpython/import.h

@@ -2,7 +2,7 @@
 #  error "this header file must not be included directly"
 #endif
 
-#ifdef ENABLE_LAZY_IMPORTS
+#ifdef META_PYTHON
 PyAPI_FUNC(PyObject *) _PyImport_GetModule(PyThreadState *tstate, PyObject *name);
 PyAPI_FUNC(PyObject *) PyImport_SetLazyImports(
     PyObject *enabled, PyObject *excluding, PyObject *eager);

Include/cpython/initconfig.h

@@ -242,7 +242,7 @@ typedef struct PyConfig {
     wchar_t *run_presite;
 #endif
 
-#ifdef ENABLE_LAZY_IMPORTS
+#ifdef META_PYTHON
     int lazy_imports;
 #endif
 } PyConfig;

Include/cpython/pyerrors.h

@@ -131,6 +131,6 @@ PyAPI_DATA(PyObject *) PyExc_PythonFinalizationError;
 
 #define Py_FatalError(message) _Py_FatalErrorFunc(__func__, (message))
 
-#ifdef ENABLE_LAZY_IMPORTS
+#ifdef META_PYTHON
 PyAPI_DATA(PyObject *) PyExc_ImportCycleError;
 #endif

Include/internal/pycore_ceval.h

@@ -88,7 +88,7 @@ extern void _PyEval_Fini(void);
 
 
 extern PyObject* _PyEval_GetBuiltins(PyThreadState *tstate);
-#ifdef ENABLE_LAZY_IMPORTS
+#ifdef META_PYTHON
 extern PyObject* _PyEval_GetGlobals(PyThreadState *tstate);
 #endif
 

Include/internal/pycore_compile.h

@@ -151,7 +151,7 @@ int _PyCompile_ResolveNameop(struct _PyCompiler *c, PyObject *mangled, int scope
 int _PyCompile_IsInteractiveTopLevel(struct _PyCompiler *c);
 int _PyCompile_IsInInlinedComp(struct _PyCompiler *c);
 int _PyCompile_ScopeType(struct _PyCompiler *c);
-#ifdef ENABLE_LAZY_IMPORTS
+#ifdef META_PYTHON
 int _PyCompile_NFBlocks(struct _PyCompiler *c);
 int _PyCompile_CFFlags(struct _PyCompiler *c);
 #endif

Include/internal/pycore_dict.h

@@ -117,7 +117,7 @@ extern void _PyDictKeys_DecRef(PyDictKeysObject *keys);
  */
 extern Py_ssize_t _Py_dict_lookup(PyDictObject *mp, PyObject *key, Py_hash_t hash, PyObject **value_addr);
 
-#ifdef ENABLE_LAZY_IMPORTS
+#ifdef META_PYTHON
 /* _Py_dict_lookup_keep_lazy() is the same as _Py_dict_lookup(), but keeps lazy objects unresolved */
 extern Py_ssize_t _Py_dict_lookup_keep_lazy(PyDictObject *mp, PyObject *key, Py_hash_t hash, PyObject **value_addr);
 extern int _PyDict_GetItemRefKeepLazy(PyObject *, PyObject *, PyObject **);
@@ -173,7 +173,7 @@ PyAPI_FUNC(void) _PyDict_EnsureSharedOnRead(PyDictObject *mp);
 #define DKIX_DUMMY (-2)  /* Used internally */
 #define DKIX_ERROR (-3)
 #define DKIX_KEY_CHANGED (-4) /* Used internally */
-#ifdef ENABLE_LAZY_IMPORTS
+#ifdef META_PYTHON
 #define DKIX_VALUE_ERROR (-5) /* Used internally */
 #endif
 
@@ -187,7 +187,7 @@ typedef enum {
 #define DICT_KEYS_KIND_MASK 0x03
 #define DICT_KEYS_LAZY_IMPORTS_MASK 0x80
 
-#ifdef ENABLE_LAZY_IMPORTS
+#ifdef META_PYTHON
 #define LOAD_SHARED_UCHAR(obj) _Py_atomic_load_uchar_acquire(&obj)
 #define STORE_SHARED_UCHAR(obj, value) _Py_atomic_store_uchar_release(&obj, value)
 #define DK_KIND(dk) (LOAD_SHARED_UCHAR(dk->dk_kind) & DICT_KEYS_KIND_MASK)

Include/internal/pycore_import.h

@@ -117,7 +117,7 @@ extern const struct _module_alias * _PyImport_FrozenAliases;
 extern int _PyImport_CheckSubinterpIncompatibleExtensionAllowed(
     const char *name);
 
-#ifdef ENABLE_LAZY_IMPORTS
+#ifdef META_PYTHON
 PyAPI_FUNC(PyObject *) _PyImport_ImportName(PyThreadState *tstate,
                                             PyObject *builtins,
                                             PyObject *globals,

Include/internal/pycore_interp_structs.h

@@ -970,7 +970,7 @@ struct _is {
     // _initial_thread should be the last field of PyInterpreterState.
     // See https://github.com/python/cpython/issues/127117.
 
-#ifdef ENABLE_LAZY_IMPORTS
+#ifdef META_PYTHON
     // Lazy Imports
     int lazy_imports;  /* whether lazy imports was enabled at runtime */
     PyObject *lazy_import_verbose_seen;