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  1. /*
  2. ** $Id: lcode.h,v 1.58.1.1 2013/04/12 18:48:47 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
  84.