1 /* 2 ** $Id: lcode.h,v 1.1 2006/02/02 13:35:29 cavac 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, 30 OPR_LT, OPR_LE, OPR_GT, OPR_GE, 31 OPR_AND, OPR_OR, 32 OPR_NOBINOPR 33 } BinOpr; 34 35 #define binopistest(op) ((op) >= OPR_NE) 36 37 typedef enum UnOpr { OPR_MINUS, OPR_NOT, OPR_NOUNOPR } UnOpr; 38 39 40 #define getcode(fs,e) ((fs)->f->code[(e)->info]) 41 42 #define luaK_codeAsBx(fs,o,A,sBx) luaK_codeABx(fs,o,A,(sBx)+MAXARG_sBx) 43 44 int luaK_code (FuncState *fs, Instruction i, int line); 45 int luaK_codeABx (FuncState *fs, OpCode o, int A, unsigned int Bx); 46 int luaK_codeABC (FuncState *fs, OpCode o, int A, int B, int C); 47 void luaK_fixline (FuncState *fs, int line); 48 void luaK_nil (FuncState *fs, int from, int n); 49 void luaK_reserveregs (FuncState *fs, int n); 50 void luaK_checkstack (FuncState *fs, int n); 51 int luaK_stringK (FuncState *fs, TString *s); 52 int luaK_numberK (FuncState *fs, lua_Number r); 53 void luaK_dischargevars (FuncState *fs, expdesc *e); 54 int luaK_exp2anyreg (FuncState *fs, expdesc *e); 55 void luaK_exp2nextreg (FuncState *fs, expdesc *e); 56 void luaK_exp2val (FuncState *fs, expdesc *e); 57 int luaK_exp2RK (FuncState *fs, expdesc *e); 58 void luaK_self (FuncState *fs, expdesc *e, expdesc *key); 59 void luaK_indexed (FuncState *fs, expdesc *t, expdesc *k); 60 void luaK_goiftrue (FuncState *fs, expdesc *e); 61 void luaK_goiffalse (FuncState *fs, expdesc *e); 62 void luaK_storevar (FuncState *fs, expdesc *var, expdesc *e); 63 void luaK_setcallreturns (FuncState *fs, expdesc *var, int nresults); 64 int luaK_jump (FuncState *fs); 65 void luaK_patchlist (FuncState *fs, int list, int target); 66 void luaK_patchtohere (FuncState *fs, int list); 67 void luaK_concat (FuncState *fs, int *l1, int l2); 68 int luaK_getlabel (FuncState *fs); 69 void luaK_prefix (FuncState *fs, UnOpr op, expdesc *v); 70 void luaK_infix (FuncState *fs, BinOpr op, expdesc *v); 71 void luaK_posfix (FuncState *fs, BinOpr op, expdesc *v1, expdesc *v2); 72 73 74 #endif 75