1 /*
2 ** $Id: lcode.h,v 1.1 2002/02/14 10:46:59 jcatki Exp $
3 ** Code generator for Lua
4 ** See Copyright Notice in lua.h
5 */
6 
7 #ifndef lcode_h
8 #define lcode_h
9 
10 #include "llex.h"
11 #include "lobject.h"
12 #include "lopcodes.h"
13 #include "lparser.h"
14 
15 
16 /*
17 ** Marks the end of a patch list. It is an invalid value both as an absolute
18 ** address, and as a list link (would link an element to itself).
19 */
20 #define NO_JUMP (-1)
21 
22 
23 /*
24 ** grep "ORDER OPR" if you change these enums
25 */
26 typedef enum BinOpr {
27   OPR_ADD, OPR_SUB, OPR_MULT, OPR_DIV, OPR_POW,
28   OPR_CONCAT,
29   OPR_NE, OPR_EQ, OPR_LT, OPR_LE, OPR_GT, OPR_GE,
30   OPR_AND, OPR_OR,
31   OPR_NOBINOPR
32 } BinOpr;
33 
34 typedef enum UnOpr { OPR_MINUS, OPR_NOT, OPR_NOUNOPR } UnOpr;
35 
36 
37 enum Mode {iO, iU, iS, iAB};  /* instruction format */
38 
39 #define VD	100	/* flag for variable delta */
40 
41 extern const struct OpProperties {
42   char mode;
43   unsigned char push;
44   unsigned char pop;
45 } luaK_opproperties[];
46 
47 
48 void luaK_error (LexState *ls, const char *msg);
49 int luaK_code0 (FuncState *fs, OpCode o);
50 int luaK_code1 (FuncState *fs, OpCode o, int arg1);
51 int luaK_code2 (FuncState *fs, OpCode o, int arg1, int arg2);
52 int luaK_jump (FuncState *fs);
53 void luaK_patchlist (FuncState *fs, int list, int target);
54 void luaK_concat (FuncState *fs, int *l1, int l2);
55 void luaK_goiftrue (FuncState *fs, expdesc *v, int keepvalue);
56 int luaK_getlabel (FuncState *fs);
57 void luaK_deltastack (FuncState *fs, int delta);
58 void luaK_kstr (LexState *ls, int c);
59 void luaK_number (FuncState *fs, Number f);
60 void luaK_adjuststack (FuncState *fs, int n);
61 int luaK_lastisopen (FuncState *fs);
62 void luaK_setcallreturns (FuncState *fs, int nresults);
63 void luaK_tostack (LexState *ls, expdesc *v, int onlyone);
64 void luaK_storevar (LexState *ls, const expdesc *var);
65 void luaK_prefix (LexState *ls, UnOpr op, expdesc *v);
66 void luaK_infix (LexState *ls, BinOpr op, expdesc *v);
67 void luaK_posfix (LexState *ls, BinOpr op, expdesc *v1, expdesc *v2);
68 
69 
70 #endif
71