| /* Frame object interface */ |
| |
| typedef struct { |
| int b_type; /* what kind of block this is */ |
| int b_handler; /* where to jump to find handler */ |
| int b_level; /* value stack level to pop to */ |
| } block; |
| |
| typedef struct _frame { |
| OB_HEAD |
| struct _frame *f_back; /* previous frame, or NULL */ |
| codeobject *f_code; /* code segment */ |
| object *f_globals; /* global symbol table (dictobject) */ |
| object *f_locals; /* local symbol table (dictobject) */ |
| object **f_valuestack; /* malloc'ed array */ |
| block *f_blockstack; /* malloc'ed array */ |
| int f_nvalues; /* size of f_valuestack */ |
| int f_nblocks; /* size of f_blockstack */ |
| int f_iblock; /* index in f_blockstack */ |
| } frameobject; |
| |
| |
| /* Standard object interface */ |
| |
| extern typeobject Frametype; |
| |
| #define is_frameobject(op) ((op)->ob_type == &Frametype) |
| |
| frameobject * newframeobject PROTO( |
| (frameobject *, codeobject *, object *, object *, int, int)); |
| |
| |
| /* The rest of the interface is specific for frame objects */ |
| |
| /* List access macros */ |
| |
| #ifdef NDEBUG |
| #define GETITEM(v, i) GETLISTITEM((listobject *)(v), (i)) |
| #define GETITEMNAME(v, i) GETSTRINGVALUE((stringobject *)GETITEM((v), (i))) |
| #else |
| #define GETITEM(v, i) getlistitem((v), (i)) |
| #define GETITEMNAME(v, i) getstringvalue(getlistitem((v), (i))) |
| #endif |
| |
| #define GETUSTRINGVALUE(s) ((unsigned char *)GETSTRINGVALUE(s)) |
| |
| /* Code access macros */ |
| |
| #define Getconst(f, i) (GETITEM((f)->f_code->co_consts, (i))) |
| #define Getname(f, i) (GETITEMNAME((f)->f_code->co_names, (i))) |
| |
| |
| /* Block management functions */ |
| |
| void setup_block PROTO((frameobject *, int, int, int)); |
| block *pop_block PROTO((frameobject *)); |