1
  
2
  
3
  
4
  
5
  
6
  
7
  
8
  
9
  
10
  
11
  
12
  
13
  
14
  
15
  
16
  
17
  
18
  
19
  
20
  
21
  
22
  
23
  
24
  
25
  
26
  
27
  
28
  
29
  
30
  
31
  
32
  
33
  
34
  
35
  
36
  
37
  
38
  
39
  
40
  
41
  
42
  
43
  
44
  
45
  
46
  
47
  
48
  
49
  
50
  
51
  
52
  
53
  
54
  
55
  
56
  
57
  
58
  
59
  
60
  
61
  
62
  
63
  
64
  
65
  
66
  
67
  
68
  
69
  
70
  
71
  
72
  
73
  
74
  
75
  
76
  
77
  
78
  
79
  
80
  
81
  
82
  
83
  
84
  
85
  
86
  
87
  
88
  
89
  
90
  
91
  
92
  
93
  
94
  
95
  
96
  
97
  
98
  
99
  
100
  
101
  
102
  
103
  
104
  
105
  
106
  
107
  
108
  
/*\ 
||| This file a part of Pike, and is copyright by Fredrik Hubinette 
||| Pike is distributed as GPL (General Public License) 
||| See the files COPYING and DISCLAIMER for more information. 
\*/ 
#ifndef INTERPRET_H 
#define INTERPRET_H 
 
#include "program.h" 
#include "config.h" 
 
struct frame 
{ 
  unsigned char *pc; 
  struct frame *parent_frame; 
  struct svalue *locals; 
  INT32 args; 
  struct object *current_object; 
  struct inherit context; 
  char *current_storage; 
  INT32 fun; 
#ifdef DEBUG 
  INT16 num_locals; 
  INT16 num_args; 
#endif 
}; 
 
#ifdef DEBUG 
#define debug_check_stack() do{if(sp<evaluator_stack)fatal("Stack error.\n");}while(0) 
#else 
#define debug_check_stack()  
#endif 
 
#define pop_stack() do{ free_svalue(--sp); debug_check_stack(); }while(0) 
#define push_program(P) do{ struct program *_=(P); sp->u.program=_; sp++->type=T_PROGRAM; }while(0) 
#define push_int(I) do{ INT32 _=(I); sp->u.integer=_;sp->type=T_INT;sp++->subtype=NUMBER_NUMBER; }while(0) 
#define push_mapping(M) do{ struct mapping *_=(M); sp->u.mapping=_; sp++->type=T_MAPPING; }while(0) 
#define push_array(A) do{ struct array *_=(A); sp->u.array=_ ;sp++->type=T_ARRAY; }while(0) 
#define push_multiset(L) do{ struct multiset *_=(L); sp->u.multiset=_; sp++->type=T_MULTISET; }while(0) 
#define push_string(S) do{ struct pike_string *_=(S); sp->u.string=_; sp++->type=T_STRING; }while(0) 
#define push_object(O) do{ struct object  *_=(O); sp->u.object=_; sp++->type=T_OBJECT; }while(0) 
#define push_float(F) do{ float _=(F); sp->u.float_number=_; sp++->type=T_FLOAT; }while(0) 
#define push_text(T) push_string(make_shared_string((T))) 
#define push_svalue(S) do { struct svalue *_=(S); assign_svalue_no_free(sp,_); sp++; }while(0) 
 
#define APPLY_MASTER(FUN,ARGS) \ 
do{ \ 
  static int fun_,master_cnt=0; \ 
  struct object *master_ob=master(); \ 
  if(master_cnt != master_ob->prog->id) \ 
  { \ 
    fun_=find_identifier(FUN,master_ob->prog); \ 
    master_cnt = master_ob->prog->id; \ 
  } \ 
  apply_low(master_ob, fun_, ARGS); \ 
}while(0) 
 
#define SAFE_APPLY_MASTER(FUN,ARGS) \ 
do{ \ 
  static int fun_,master_cnt=0; \ 
  struct object *master_ob=master(); \ 
  if(master_cnt != master_ob->prog->id) \ 
  { \ 
    fun_=find_identifier(FUN,master_ob->prog); \ 
    master_cnt = master_ob->prog->id; \ 
  } \ 
  safe_apply_low(master_ob, fun_, ARGS); \ 
}while(0) 
 
/* Prototypes begin here */ 
void init_interpreter(); 
void check_stack(INT32 size); 
void check_mark_stack(INT32 size); 
void lvalue_to_svalue_no_free(struct svalue *to,struct svalue *lval); 
void assign_lvalue(struct svalue *lval,struct svalue *from); 
union anything *get_pointer_if_this_type(struct svalue *lval, TYPE_T t); 
void print_return_value(); 
void pop_n_elems(INT32 x); 
void check_threads_etc(); 
void reset_evaluator(); 
struct backlog; 
void dump_backlog(void); 
int apply_low_safe_and_stupid(struct object *o, INT32 offset); 
void apply_low(struct object *o, int fun, int args); 
void safe_apply_low(struct object *o,int fun,int args); 
void safe_apply(struct object *o, char *fun ,INT32 args); 
void apply_lfun(struct object *o, int fun, int args); 
void apply_shared(struct object *o, 
                  struct pike_string *fun, 
                  int args); 
void apply(struct object *o, char *fun, int args); 
void strict_apply_svalue(struct svalue *s, INT32 args); 
void apply_svalue(struct svalue *s, INT32 args); 
void slow_check_stack(); 
void cleanup_interpret(); 
/* Prototypes end here */ 
 
extern struct svalue *sp; 
extern struct svalue **mark_sp; 
extern struct svalue *evaluator_stack; 
extern struct svalue **mark_stack; 
extern struct frame *fp; /* frame pointer */ 
extern int stack_size; 
extern int evaluator_stack_malloced, mark_stack_malloced; 
#endif