liblua/lcode.h

   1 /*
   2 ** $Id: lcode.h,v 1.58 2011/08/30 16:26:41 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_DIV, OPR_MOD, OPR_POW,
  28   OPR_CONCAT,
  29   OPR_EQ, OPR_LT, OPR_LE,
  30   OPR_NE, 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.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 #define luaK_jumpto(fs,t)       luaK_patchlist(fs, luaK_jump(fs), t)
  46
  47 LUAI_FUNC int luaK_codeABx (FuncState *fs, OpCode o, int A, unsigned int Bx);
  48 LUAI_FUNC int luaK_codeABC (FuncState *fs, OpCode o, int A, int B, int C);
  49 LUAI_FUNC int luaK_codek (FuncState *fs, int reg, int k);
  50 LUAI_FUNC void luaK_fixline (FuncState *fs, int line);
  51 LUAI_FUNC void luaK_nil (FuncState *fs, int from, int n);
  52 LUAI_FUNC void luaK_reserveregs (FuncState *fs, int n);
  53 LUAI_FUNC void luaK_checkstack (FuncState *fs, int n);
  54 LUAI_FUNC int luaK_stringK (FuncState *fs, TString *s);
  55 LUAI_FUNC int luaK_numberK (FuncState *fs, lua_Number r);
  56 LUAI_FUNC void luaK_dischargevars (FuncState *fs, expdesc *e);
  57 LUAI_FUNC int luaK_exp2anyreg (FuncState *fs, expdesc *e);
  58 LUAI_FUNC void luaK_exp2anyregup (FuncState *fs, expdesc *e);
  59 LUAI_FUNC void luaK_exp2nextreg (FuncState *fs, expdesc *e);
  60 LUAI_FUNC void luaK_exp2val (FuncState *fs, expdesc *e);
  61 LUAI_FUNC int luaK_exp2RK (FuncState *fs, expdesc *e);
  62 LUAI_FUNC void luaK_self (FuncState *fs, expdesc *e, expdesc *key);
  63 LUAI_FUNC void luaK_indexed (FuncState *fs, expdesc *t, expdesc *k);
  64 LUAI_FUNC void luaK_goiftrue (FuncState *fs, expdesc *e);
  65 LUAI_FUNC void luaK_goiffalse (FuncState *fs, expdesc *e);
  66 LUAI_FUNC void luaK_storevar (FuncState *fs, expdesc *var, expdesc *e);
  67 LUAI_FUNC void luaK_setreturns (FuncState *fs, expdesc *e, int nresults);
  68 LUAI_FUNC void luaK_setoneret (FuncState *fs, expdesc *e);
  69 LUAI_FUNC int luaK_jump (FuncState *fs);
  70 LUAI_FUNC void luaK_ret (FuncState *fs, int first, int nret);
  71 LUAI_FUNC void luaK_patchlist (FuncState *fs, int list, int target);
  72 LUAI_FUNC void luaK_patchtohere (FuncState *fs, int list);
  73 LUAI_FUNC void luaK_patchclose (FuncState *fs, int list, int level);
  74 LUAI_FUNC void luaK_concat (FuncState *fs, int *l1, int l2);
  75 LUAI_FUNC int luaK_getlabel (FuncState *fs);
  76 LUAI_FUNC void luaK_prefix (FuncState *fs, UnOpr op, expdesc *v, int line);
  77 LUAI_FUNC void luaK_infix (FuncState *fs, BinOpr op, expdesc *v);
  78 LUAI_FUNC void luaK_posfix (FuncState *fs, BinOpr op, expdesc *v1,
  79                             expdesc *v2, int line);
  80 LUAI_FUNC void luaK_setlist (FuncState *fs, int base, int nelems, int tostore);
  81
  82
  83 #endif