8
typedef enum _block_type { FunctionBlock, ClassBlock, ModuleBlock }
11
struct _symtable_entry;
14
const char *st_filename; /* name of file being compiled */
15
struct _symtable_entry *st_cur; /* current symbol table entry */
16
struct _symtable_entry *st_top; /* module entry */
17
PyObject *st_symbols; /* dictionary of symbol table entries */
18
PyObject *st_stack; /* stack of namespace info */
19
PyObject *st_global; /* borrowed ref to MODULE in st_symbols */
20
int st_nblocks; /* number of blocks */
21
PyObject *st_private; /* name of current class or NULL */
22
PyFutureFeatures *st_future; /* module's future features */
25
typedef struct _symtable_entry {
27
PyObject *ste_id; /* int: key in st_symbols */
28
PyObject *ste_symbols; /* dict: name to flags */
29
PyObject *ste_name; /* string: name of block */
30
PyObject *ste_varnames; /* list of variable names */
31
PyObject *ste_children; /* list of child ids */
32
_Py_block_ty ste_type; /* module, class, or function */
33
int ste_unoptimized; /* false if namespace is optimized */
34
int ste_nested; /* true if block is nested */
35
unsigned ste_free : 1; /* true if block has free variables */
36
unsigned ste_child_free : 1; /* true if a child block has free vars,
37
including free refs to globals */
38
unsigned ste_generator : 1; /* true if namespace is a generator */
39
unsigned ste_varargs : 1; /* true if block has varargs */
40
unsigned ste_varkeywords : 1; /* true if block has varkeywords */
41
unsigned ste_returns_value : 1; /* true if namespace uses return with
43
int ste_lineno; /* first line of block */
44
int ste_opt_lineno; /* lineno of last exec or import * */
45
int ste_tmpname; /* counter for listcomp temp vars */
46
struct symtable *ste_table;
49
PyAPI_DATA(PyTypeObject) PySTEntry_Type;
51
#define PySTEntry_Check(op) (Py_TYPE(op) == &PySTEntry_Type)
53
PyAPI_FUNC(int) PyST_GetScope(PySTEntryObject *, PyObject *);
55
PyAPI_FUNC(struct symtable *) PySymtable_Build(mod_ty, const char *,
57
PyAPI_FUNC(PySTEntryObject *) PySymtable_Lookup(struct symtable *, void *);
59
PyAPI_FUNC(void) PySymtable_Free(struct symtable *);
61
/* Flags for def-use information */
63
#define DEF_GLOBAL 1 /* global stmt */
64
#define DEF_LOCAL 2 /* assignment in code block */
65
#define DEF_PARAM 2<<1 /* formal parameter */
66
#define USE 2<<2 /* name is used */
67
#define DEF_FREE 2<<3 /* name used but not defined in nested block */
68
#define DEF_FREE_CLASS 2<<4 /* free variable from class's method */
69
#define DEF_IMPORT 2<<5 /* assignment occurred via import */
71
#define DEF_BOUND (DEF_LOCAL | DEF_PARAM | DEF_IMPORT)
73
/* GLOBAL_EXPLICIT and GLOBAL_IMPLICIT are used internally by the symbol
74
table. GLOBAL is returned from PyST_GetScope() for either of them.
75
It is stored in ste_symbols at bits 12-14.
81
#define GLOBAL_EXPLICIT 2
82
#define GLOBAL_IMPLICIT 3
86
/* The following three names are used for the ste_unoptimized bit field */
87
#define OPT_IMPORT_STAR 1
89
#define OPT_BARE_EXEC 4
90
#define OPT_TOPLEVEL 8 /* top-level names, including eval and exec */
93
#define GENERATOR_EXPRESSION 2
98
#endif /* !Py_SYMTABLE_H */
8
typedef enum _block_type { FunctionBlock, ClassBlock, ModuleBlock }
11
struct _symtable_entry;
14
const char *st_filename; /* name of file being compiled */
15
struct _symtable_entry *st_cur; /* current symbol table entry */
16
struct _symtable_entry *st_top; /* module entry */
17
PyObject *st_symbols; /* dictionary of symbol table entries */
18
PyObject *st_stack; /* stack of namespace info */
19
PyObject *st_global; /* borrowed ref to MODULE in st_symbols */
20
int st_nblocks; /* number of blocks */
21
PyObject *st_private; /* name of current class or NULL */
22
PyFutureFeatures *st_future; /* module's future features */
25
typedef struct _symtable_entry {
27
PyObject *ste_id; /* int: key in st_symbols */
28
PyObject *ste_symbols; /* dict: name to flags */
29
PyObject *ste_name; /* string: name of block */
30
PyObject *ste_varnames; /* list of variable names */
31
PyObject *ste_children; /* list of child ids */
32
_Py_block_ty ste_type; /* module, class, or function */
33
int ste_unoptimized; /* false if namespace is optimized */
34
int ste_nested; /* true if block is nested */
35
unsigned ste_free : 1; /* true if block has free variables */
36
unsigned ste_child_free : 1; /* true if a child block has free vars,
37
including free refs to globals */
38
unsigned ste_generator : 1; /* true if namespace is a generator */
39
unsigned ste_varargs : 1; /* true if block has varargs */
40
unsigned ste_varkeywords : 1; /* true if block has varkeywords */
41
unsigned ste_returns_value : 1; /* true if namespace uses return with
43
int ste_lineno; /* first line of block */
44
int ste_opt_lineno; /* lineno of last exec or import * */
45
int ste_tmpname; /* counter for listcomp temp vars */
46
struct symtable *ste_table;
49
PyAPI_DATA(PyTypeObject) PySTEntry_Type;
51
#define PySTEntry_Check(op) (Py_TYPE(op) == &PySTEntry_Type)
53
PyAPI_FUNC(int) PyST_GetScope(PySTEntryObject *, PyObject *);
55
PyAPI_FUNC(struct symtable *) PySymtable_Build(mod_ty, const char *,
57
PyAPI_FUNC(PySTEntryObject *) PySymtable_Lookup(struct symtable *, void *);
59
PyAPI_FUNC(void) PySymtable_Free(struct symtable *);
61
/* Flags for def-use information */
63
#define DEF_GLOBAL 1 /* global stmt */
64
#define DEF_LOCAL 2 /* assignment in code block */
65
#define DEF_PARAM 2<<1 /* formal parameter */
66
#define USE 2<<2 /* name is used */
67
#define DEF_FREE 2<<3 /* name used but not defined in nested block */
68
#define DEF_FREE_CLASS 2<<4 /* free variable from class's method */
69
#define DEF_IMPORT 2<<5 /* assignment occurred via import */
71
#define DEF_BOUND (DEF_LOCAL | DEF_PARAM | DEF_IMPORT)
73
/* GLOBAL_EXPLICIT and GLOBAL_IMPLICIT are used internally by the symbol
74
table. GLOBAL is returned from PyST_GetScope() for either of them.
75
It is stored in ste_symbols at bits 12-14.
81
#define GLOBAL_EXPLICIT 2
82
#define GLOBAL_IMPLICIT 3
86
/* The following three names are used for the ste_unoptimized bit field */
87
#define OPT_IMPORT_STAR 1
89
#define OPT_BARE_EXEC 4
90
#define OPT_TOPLEVEL 8 /* top-level names, including eval and exec */
93
#define GENERATOR_EXPRESSION 2
98
#endif /* !Py_SYMTABLE_H */
added
removed
python/include/symtable.h
