1 /*

     2 ** $Id: lcode.h,v 1.48.1.1 2007/12/27 13:02:25 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

    25 */

    26 typedef enum BinOpr {

    27   OPR_ADD, OPR_SUB, OPR_MUL, OPR_DIV, OPR_MOD, 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 

    36 typedef enum UnOpr { OPR_MINUS, OPR_NOT, OPR_LEN, OPR_NOUNOPR } UnOpr;

    37 

    38 

    39 #define getcode(fs,e)	((fs)->f->code[(e)->u.s.info])

    40 

    41 #define luaK_codeAsBx(fs,o,A,sBx)	luaK_codeABx(fs,o,A,(sBx)+MAXARG_sBx)

    42 

    43 #define luaK_setmultret(fs,e)	luaK_setreturns(fs, e, LUA_MULTRET)

    44 

    45 LUAI_FUNC int luaK_codeABx (FuncState *fs, OpCode o, int A, unsigned int Bx);

    46 LUAI_FUNC int luaK_codeABC (FuncState *fs, OpCode o, int A, int B, int C);

    47 LUAI_FUNC void luaK_fixline (FuncState *fs, int line);

    48 LUAI_FUNC void luaK_nil (FuncState *fs, int from, int n);

    49 LUAI_FUNC void luaK_reserveregs (FuncState *fs, int n);

    50 LUAI_FUNC void luaK_checkstack (FuncState *fs, int n);

    51 LUAI_FUNC int luaK_stringK (FuncState *fs, TString *s);

    52 LUAI_FUNC int luaK_numberK (FuncState *fs, lua_Number r);

    53 LUAI_FUNC void luaK_dischargevars (FuncState *fs, expdesc *e);

    54 LUAI_FUNC int luaK_exp2anyreg (FuncState *fs, expdesc *e);

    55 LUAI_FUNC void luaK_exp2nextreg (FuncState *fs, expdesc *e);

    56 LUAI_FUNC void luaK_exp2val (FuncState *fs, expdesc *e);

    57 LUAI_FUNC int luaK_exp2RK (FuncState *fs, expdesc *e);

    58 LUAI_FUNC void luaK_self (FuncState *fs, expdesc *e, expdesc *key);

    59 LUAI_FUNC void luaK_indexed (FuncState *fs, expdesc *t, expdesc *k);

    60 LUAI_FUNC void luaK_goiftrue (FuncState *fs, expdesc *e);

    61 LUAI_FUNC void luaK_storevar (FuncState *fs, expdesc *var, expdesc *e);

    62 LUAI_FUNC void luaK_setreturns (FuncState *fs, expdesc *e, int nresults);

    63 LUAI_FUNC void luaK_setoneret (FuncState *fs, expdesc *e);

    64 LUAI_FUNC int luaK_jump (FuncState *fs);

    65 LUAI_FUNC void luaK_ret (FuncState *fs, int first, int nret);

    66 LUAI_FUNC void luaK_patchlist (FuncState *fs, int list, int target);

    67 LUAI_FUNC void luaK_patchtohere (FuncState *fs, int list);

    68 LUAI_FUNC void luaK_concat (FuncState *fs, int *l1, int l2);

    69 LUAI_FUNC int luaK_getlabel (FuncState *fs);

    70 LUAI_FUNC void luaK_prefix (FuncState *fs, UnOpr op, expdesc *v);

    71 LUAI_FUNC void luaK_infix (FuncState *fs, BinOpr op, expdesc *v);

    72 LUAI_FUNC void luaK_posfix (FuncState *fs, BinOpr op, expdesc *v1, expdesc *v2);

    73 LUAI_FUNC void luaK_setlist (FuncState *fs, int base, int nelems, int tostore);

    74 

    75 

    76 #endif