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