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/* Definitions for bytecode */
#ifndef Py_COMPILE_H
#define Py_COMPILE_H
#ifdef __cplusplus
extern "C" {
#endif
/* Bytecode object */
typedef struct {
PyObject_HEAD
int co_argcount; /* #arguments, except *args */
int co_nlocals; /* #local variables */
int co_stacksize; /* #entries needed for evaluation stack */
int co_flags; /* CO_..., see below */
PyObject *co_code; /* instruction opcodes */
PyObject *co_consts; /* list (constants used) */
PyObject *co_names; /* list of strings (names used) */
PyObject *co_varnames; /* tuple of strings (local variable names) */
PyObject *co_freevars; /* tuple of strings (free variable names) */
PyObject *co_cellvars; /* tuple of strings (cell variable names) */
/* The rest doesn't count for hash/cmp */
PyObject *co_filename; /* string (where it was loaded from) */
PyObject *co_name; /* string (name, for reference) */
int co_firstlineno; /* first source line number */
PyObject *co_lnotab; /* string (encoding addr<->lineno mapping) */
} PyCodeObject;
/* Masks for co_flags above */
#define CO_OPTIMIZED 0x0001
#define CO_NEWLOCALS 0x0002
#define CO_VARARGS 0x0004
#define CO_VARKEYWORDS 0x0008
#define CO_NESTED 0x0010
#define CO_GENERATOR 0x0020
/* The CO_NOFREE flag is set if there are no free or cell variables.
This information is redundant, but it allows a single flag test
to determine whether there is any extra work to be done when the
call frame it setup.
*/
#define CO_NOFREE 0x0040
/* XXX Temporary hack. Until generators are a permanent part of the
language, we need a way for a code object to record that generators
were *possible* when it was compiled. This is so code dynamically
compiled *by* a code object knows whether to allow yield stmts. In
effect, this passes on the "from __future__ import generators" state
in effect when the code block was compiled. */
#define CO_GENERATOR_ALLOWED 0x1000 /* no longer used in an essential way */
#define CO_FUTURE_DIVISION 0x2000
PyAPI_DATA(PyTypeObject) PyCode_Type;
#define PyCode_Check(op) ((op)->ob_type == &PyCode_Type)
#define PyCode_GetNumFree(op) (PyTuple_GET_SIZE((op)->co_freevars))
#define CO_MAXBLOCKS 20 /* Max static block nesting within a function */
/* Public interface */
struct _node; /* Declare the existence of this type */
PyAPI_FUNC(PyCodeObject *) PyNode_Compile(struct _node *, const char *);
PyAPI_FUNC(PyCodeObject *) PyCode_New(
int, int, int, int, PyObject *, PyObject *, PyObject *, PyObject *,
PyObject *, PyObject *, PyObject *, PyObject *, int, PyObject *);
/* same as struct above */
PyAPI_FUNC(int) PyCode_Addr2Line(PyCodeObject *, int);
/* Future feature support */
typedef struct {
int ff_found_docstring;
int ff_last_lineno;
int ff_features;
} PyFutureFeatures;
PyAPI_FUNC(PyFutureFeatures *) PyNode_Future(struct _node *, const char *);
PyAPI_FUNC(PyCodeObject *) PyNode_CompileFlags(struct _node *, const char *,
PyCompilerFlags *);
#define FUTURE_NESTED_SCOPES "nested_scopes"
#define FUTURE_GENERATORS "generators"
#define FUTURE_DIVISION "division"
#ifdef __cplusplus
}
#endif
#endif /* !Py_COMPILE_H */
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