1 /* 2 ** $Id: lcode.h,v 1.64.1.1 2017/04/19 17:20:42 roberto 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 (ORDER OP) 25 */ 26 typedef enum BinOpr { 27 OPR_ADD, OPR_SUB, OPR_MUL, OPR_MOD, OPR_POW, 28 OPR_DIV, 29 OPR_IDIV, 30 OPR_BAND, OPR_BOR, OPR_BXOR, 31 OPR_SHL, OPR_SHR, 32 OPR_CONCAT, 33 OPR_EQ, OPR_LT, OPR_LE, 34 OPR_NE, OPR_GT, OPR_GE, 35 OPR_AND, OPR_OR, 36 OPR_NOBINOPR 37 } BinOpr; 38 39 40 typedef enum UnOpr { OPR_MINUS, OPR_BNOT, OPR_NOT, OPR_LEN, OPR_NOUNOPR } UnOpr; 41 42 43 /* get (pointer to) instruction of given 'expdesc' */ 44 #define getinstruction(fs,e) ((fs)->f->code[(e)->u.info]) 45 46 #define luaK_codeAsBx(fs,o,A,sBx) luaK_codeABx(fs,o,A,(sBx)+MAXARG_sBx) 47 48 #define luaK_setmultret(fs,e) luaK_setreturns(fs, e, LUA_MULTRET) 49 50 #define luaK_jumpto(fs,t) luaK_patchlist(fs, luaK_jump(fs), t) 51 52 LUAI_FUNC int luaK_codeABx (FuncState *fs, OpCode o, int A, unsigned int Bx); 53 LUAI_FUNC int luaK_codeABC (FuncState *fs, OpCode o, int A, int B, int C); 54 LUAI_FUNC int luaK_codek (FuncState *fs, int reg, int k); 55 LUAI_FUNC void luaK_fixline (FuncState *fs, int line); 56 LUAI_FUNC void luaK_nil (FuncState *fs, int from, int n); 57 LUAI_FUNC void luaK_reserveregs (FuncState *fs, int n); 58 LUAI_FUNC void luaK_checkstack (FuncState *fs, int n); 59 LUAI_FUNC int luaK_stringK (FuncState *fs, TString *s); 60 LUAI_FUNC int luaK_intK (FuncState *fs, lua_Integer n); 61 LUAI_FUNC void luaK_dischargevars (FuncState *fs, expdesc *e); 62 LUAI_FUNC int luaK_exp2anyreg (FuncState *fs, expdesc *e); 63 LUAI_FUNC void luaK_exp2anyregup (FuncState *fs, expdesc *e); 64 LUAI_FUNC void luaK_exp2nextreg (FuncState *fs, expdesc *e); 65 LUAI_FUNC void luaK_exp2val (FuncState *fs, expdesc *e); 66 LUAI_FUNC int luaK_exp2RK (FuncState *fs, expdesc *e); 67 LUAI_FUNC void luaK_self (FuncState *fs, expdesc *e, expdesc *key); 68 LUAI_FUNC void luaK_indexed (FuncState *fs, expdesc *t, expdesc *k); 69 LUAI_FUNC void luaK_goiftrue (FuncState *fs, expdesc *e); 70 LUAI_FUNC void luaK_goiffalse (FuncState *fs, expdesc *e); 71 LUAI_FUNC void luaK_storevar (FuncState *fs, expdesc *var, expdesc *e); 72 LUAI_FUNC void luaK_setreturns (FuncState *fs, expdesc *e, int nresults); 73 LUAI_FUNC void luaK_setoneret (FuncState *fs, expdesc *e); 74 LUAI_FUNC int luaK_jump (FuncState *fs); 75 LUAI_FUNC void luaK_ret (FuncState *fs, int first, int nret); 76 LUAI_FUNC void luaK_patchlist (FuncState *fs, int list, int target); 77 LUAI_FUNC void luaK_patchtohere (FuncState *fs, int list); 78 LUAI_FUNC void luaK_patchclose (FuncState *fs, int list, int level); 79 LUAI_FUNC void luaK_concat (FuncState *fs, int *l1, int l2); 80 LUAI_FUNC int luaK_getlabel (FuncState *fs); 81 LUAI_FUNC void luaK_prefix (FuncState *fs, UnOpr op, expdesc *v, int line); 82 LUAI_FUNC void luaK_infix (FuncState *fs, BinOpr op, expdesc *v); 83 LUAI_FUNC void luaK_posfix (FuncState *fs, BinOpr op, expdesc *v1, 84 expdesc *v2, int line); 85 LUAI_FUNC void luaK_setlist (FuncState *fs, int base, int nelems, int tostore); 86 87 88 #endif 89