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