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1866
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1 /*
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2 ** $Id: lcode.h,v 1.58 2011/08/30 16:26:41 roberto Exp $
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3 ** Code generator for Lua
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4 ** See Copyright Notice in lua.h
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5 */
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6
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7 #ifndef lcode_h
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8 #define lcode_h
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9
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10 #include "llex.h"
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11 #include "lobject.h"
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12 #include "lopcodes.h"
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13 #include "lparser.h"
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14
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15
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16 /*
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17 ** Marks the end of a patch list. It is an invalid value both as an absolute
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18 ** address, and as a list link (would link an element to itself).
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19 */
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20 #define NO_JUMP (-1)
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21
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22
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23 /*
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24 ** grep "ORDER OPR" if you change these enums (ORDER OP)
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25 */
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26 typedef enum BinOpr {
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27 OPR_ADD, OPR_SUB, OPR_MUL, OPR_DIV, OPR_MOD, OPR_POW,
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28 OPR_CONCAT,
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29 OPR_EQ, OPR_LT, OPR_LE,
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30 OPR_NE, OPR_GT, OPR_GE,
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31 OPR_AND, OPR_OR,
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32 OPR_NOBINOPR
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33 } BinOpr;
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34
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35
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36 typedef enum UnOpr { OPR_MINUS, OPR_NOT, OPR_LEN, OPR_NOUNOPR } UnOpr;
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37
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38
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39 #define getcode(fs,e) ((fs)->f->code[(e)->u.info])
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40
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41 #define luaK_codeAsBx(fs,o,A,sBx) luaK_codeABx(fs,o,A,(sBx)+MAXARG_sBx)
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42
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43 #define luaK_setmultret(fs,e) luaK_setreturns(fs, e, LUA_MULTRET)
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44
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45 #define luaK_jumpto(fs,t) luaK_patchlist(fs, luaK_jump(fs), t)
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46
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47 LUAI_FUNC int luaK_codeABx (FuncState *fs, OpCode o, int A, unsigned int Bx);
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48 LUAI_FUNC int luaK_codeABC (FuncState *fs, OpCode o, int A, int B, int C);
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49 LUAI_FUNC int luaK_codek (FuncState *fs, int reg, int k);
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50 LUAI_FUNC void luaK_fixline (FuncState *fs, int line);
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51 LUAI_FUNC void luaK_nil (FuncState *fs, int from, int n);
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52 LUAI_FUNC void luaK_reserveregs (FuncState *fs, int n);
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53 LUAI_FUNC void luaK_checkstack (FuncState *fs, int n);
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54 LUAI_FUNC int luaK_stringK (FuncState *fs, TString *s);
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55 LUAI_FUNC int luaK_numberK (FuncState *fs, lua_Number r);
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56 LUAI_FUNC void luaK_dischargevars (FuncState *fs, expdesc *e);
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57 LUAI_FUNC int luaK_exp2anyreg (FuncState *fs, expdesc *e);
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58 LUAI_FUNC void luaK_exp2anyregup (FuncState *fs, expdesc *e);
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59 LUAI_FUNC void luaK_exp2nextreg (FuncState *fs, expdesc *e);
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60 LUAI_FUNC void luaK_exp2val (FuncState *fs, expdesc *e);
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61 LUAI_FUNC int luaK_exp2RK (FuncState *fs, expdesc *e);
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62 LUAI_FUNC void luaK_self (FuncState *fs, expdesc *e, expdesc *key);
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63 LUAI_FUNC void luaK_indexed (FuncState *fs, expdesc *t, expdesc *k);
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64 LUAI_FUNC void luaK_goiftrue (FuncState *fs, expdesc *e);
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65 LUAI_FUNC void luaK_goiffalse (FuncState *fs, expdesc *e);
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66 LUAI_FUNC void luaK_storevar (FuncState *fs, expdesc *var, expdesc *e);
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67 LUAI_FUNC void luaK_setreturns (FuncState *fs, expdesc *e, int nresults);
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68 LUAI_FUNC void luaK_setoneret (FuncState *fs, expdesc *e);
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69 LUAI_FUNC int luaK_jump (FuncState *fs);
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70 LUAI_FUNC void luaK_ret (FuncState *fs, int first, int nret);
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71 LUAI_FUNC void luaK_patchlist (FuncState *fs, int list, int target);
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72 LUAI_FUNC void luaK_patchtohere (FuncState *fs, int list);
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73 LUAI_FUNC void luaK_patchclose (FuncState *fs, int list, int level);
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74 LUAI_FUNC void luaK_concat (FuncState *fs, int *l1, int l2);
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75 LUAI_FUNC int luaK_getlabel (FuncState *fs);
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76 LUAI_FUNC void luaK_prefix (FuncState *fs, UnOpr op, expdesc *v, int line);
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77 LUAI_FUNC void luaK_infix (FuncState *fs, BinOpr op, expdesc *v);
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78 LUAI_FUNC void luaK_posfix (FuncState *fs, BinOpr op, expdesc *v1,
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79 expdesc *v2, int line);
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80 LUAI_FUNC void luaK_setlist (FuncState *fs, int base, int nelems, int tostore);
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81
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82
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83 #endif
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