client/deps/liblua/lcode.h

   1 /*
   2 ** $Id: lcode.h $
   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     /* arithmetic operators */
  28     OPR_ADD, OPR_SUB, OPR_MUL, OPR_MOD, OPR_POW,
  29     OPR_DIV, OPR_IDIV,
  30     /* bitwise operators */
  31     OPR_BAND, OPR_BOR, OPR_BXOR,
  32     OPR_SHL, OPR_SHR,
  33     /* string operator */
  34     OPR_CONCAT,
  35     /* comparison operators */
  36     OPR_EQ, OPR_LT, OPR_LE,
  37     OPR_NE, OPR_GT, OPR_GE,
  38     /* logical operators */
  39     OPR_AND, OPR_OR,
  40     OPR_NOBINOPR
  41 } BinOpr;
  42
  43
  44 /* true if operation is foldable (that is, it is arithmetic or bitwise) */
  45 #define foldbinop(op)   ((op) <= OPR_SHR)
  46
  47
  48 #define luaK_codeABC(fs,o,a,b,c)        luaK_codeABCk(fs,o,a,b,c,0)
  49
  50
  51 typedef enum UnOpr { OPR_MINUS, OPR_BNOT, OPR_NOT, OPR_LEN, OPR_NOUNOPR } UnOpr;
  52
  53
  54 /* get (pointer to) instruction of given 'expdesc' */
  55 #define getinstruction(fs,e)    ((fs)->f->code[(e)->u.info])
  56
  57
  58 #define luaK_setmultret(fs,e)   luaK_setreturns(fs, e, LUA_MULTRET)
  59
  60 #define luaK_jumpto(fs,t)       luaK_patchlist(fs, luaK_jump(fs), t)
  61
  62 LUAI_FUNC int luaK_code(FuncState *fs, Instruction i);
  63 LUAI_FUNC int luaK_codeABx(FuncState *fs, OpCode o, int A, unsigned int Bx);
  64 LUAI_FUNC int luaK_codeABCk(FuncState *fs, OpCode o, int A,
  65                             int B, int C, int k);
  66 LUAI_FUNC int luaK_exp2const(FuncState *fs, const expdesc *e, TValue *v);
  67 LUAI_FUNC void luaK_fixline(FuncState *fs, int line);
  68 LUAI_FUNC void luaK_nil(FuncState *fs, int from, int n);
  69 LUAI_FUNC void luaK_reserveregs(FuncState *fs, int n);
  70 LUAI_FUNC void luaK_checkstack(FuncState *fs, int n);
  71 LUAI_FUNC void luaK_int(FuncState *fs, int reg, lua_Integer n);
  72 LUAI_FUNC void luaK_dischargevars(FuncState *fs, expdesc *e);
  73 LUAI_FUNC int luaK_exp2anyreg(FuncState *fs, expdesc *e);
  74 LUAI_FUNC void luaK_exp2anyregup(FuncState *fs, expdesc *e);
  75 LUAI_FUNC void luaK_exp2nextreg(FuncState *fs, expdesc *e);
  76 LUAI_FUNC void luaK_exp2val(FuncState *fs, expdesc *e);
  77 LUAI_FUNC void luaK_self(FuncState *fs, expdesc *e, expdesc *key);
  78 LUAI_FUNC void luaK_indexed(FuncState *fs, expdesc *t, expdesc *k);
  79 LUAI_FUNC void luaK_goiftrue(FuncState *fs, expdesc *e);
  80 LUAI_FUNC void luaK_goiffalse(FuncState *fs, expdesc *e);
  81 LUAI_FUNC void luaK_storevar(FuncState *fs, expdesc *var, expdesc *e);
  82 LUAI_FUNC void luaK_setreturns(FuncState *fs, expdesc *e, int nresults);
  83 LUAI_FUNC void luaK_setoneret(FuncState *fs, expdesc *e);
  84 LUAI_FUNC int luaK_jump(FuncState *fs);
  85 LUAI_FUNC void luaK_ret(FuncState *fs, int first, int nret);
  86 LUAI_FUNC void luaK_patchlist(FuncState *fs, int list, int target);
  87 LUAI_FUNC void luaK_patchtohere(FuncState *fs, int list);
  88 LUAI_FUNC void luaK_concat(FuncState *fs, int *l1, int l2);
  89 LUAI_FUNC int luaK_getlabel(FuncState *fs);
  90 LUAI_FUNC void luaK_prefix(FuncState *fs, UnOpr op, expdesc *v, int line);
  91 LUAI_FUNC void luaK_infix(FuncState *fs, BinOpr op, expdesc *v);
  92 LUAI_FUNC void luaK_posfix(FuncState *fs, BinOpr op, expdesc *v1,
  93                            expdesc *v2, int line);
  94 LUAI_FUNC void luaK_settablesize(FuncState *fs, int pc,
  95                                  int ra, int asize, int hsize);
  96 LUAI_FUNC void luaK_setlist(FuncState *fs, int base, int nelems, int tostore);
  97 LUAI_FUNC void luaK_finish(FuncState *fs);
  98 LUAI_FUNC l_noret luaK_semerror(LexState *ls, const char *msg);
  99
 100
 101 #endif