1 /* $NetBSD: lcode.h,v 1.9 2023/04/16 20:46:17 nikita Exp $ */ 2 3 /* 4 ** Id: lcode.h 5 ** Code generator for Lua 6 ** See Copyright Notice in lua.h 7 */ 8 9 #ifndef lcode_h 10 #define lcode_h 11 12 #include "llex.h" 13 #include "lobject.h" 14 #include "lopcodes.h" 15 #include "lparser.h" 16 17 18 /* 19 ** Marks the end of a patch list. It is an invalid value both as an absolute 20 ** address, and as a list link (would link an element to itself). 21 */ 22 #define NO_JUMP (-1) 23 24 25 /* 26 ** grep "ORDER OPR" if you change these enums (ORDER OP) 27 */ 28 typedef enum BinOpr { 29 #ifndef _KERNEL 30 /* arithmetic operators */ 31 OPR_ADD, OPR_SUB, OPR_MUL, OPR_MOD, OPR_POW, 32 OPR_DIV, 33 #else /* _KERNEL */ 34 OPR_ADD, OPR_SUB, OPR_MUL, OPR_MOD, 35 #endif /* _KERNEL */ 36 OPR_IDIV, 37 /* bitwise operators */ 38 OPR_BAND, OPR_BOR, OPR_BXOR, 39 OPR_SHL, OPR_SHR, 40 /* string operator */ 41 OPR_CONCAT, 42 /* comparison operators */ 43 OPR_EQ, OPR_LT, OPR_LE, 44 OPR_NE, OPR_GT, OPR_GE, 45 /* logical operators */ 46 OPR_AND, OPR_OR, 47 OPR_NOBINOPR 48 } BinOpr; 49 50 51 /* true if operation is foldable (that is, it is arithmetic or bitwise) */ 52 #define foldbinop(op) ((op) <= OPR_SHR) 53 54 55 #define luaK_codeABC(fs,o,a,b,c) luaK_codeABCk(fs,o,a,b,c,0) 56 57 58 typedef enum UnOpr { OPR_MINUS, OPR_BNOT, OPR_NOT, OPR_LEN, OPR_NOUNOPR } UnOpr; 59 60 61 /* get (pointer to) instruction of given 'expdesc' */ 62 #define getinstruction(fs,e) ((fs)->f->code[(e)->u.info]) 63 64 65 #define luaK_setmultret(fs,e) luaK_setreturns(fs, e, LUA_MULTRET) 66 67 #define luaK_jumpto(fs,t) luaK_patchlist(fs, luaK_jump(fs), t) 68 69 LUAI_FUNC int luaK_code (FuncState *fs, Instruction i); 70 LUAI_FUNC int luaK_codeABx (FuncState *fs, OpCode o, int A, unsigned int Bx); 71 LUAI_FUNC int luaK_codeAsBx (FuncState *fs, OpCode o, int A, int Bx); 72 LUAI_FUNC int luaK_codeABCk (FuncState *fs, OpCode o, int A, 73 int B, int C, int k); 74 LUAI_FUNC int luaK_isKint (expdesc *e); 75 LUAI_FUNC int luaK_exp2const (FuncState *fs, const expdesc *e, TValue *v); 76 LUAI_FUNC void luaK_fixline (FuncState *fs, int line); 77 LUAI_FUNC void luaK_nil (FuncState *fs, int from, int n); 78 LUAI_FUNC void luaK_reserveregs (FuncState *fs, int n); 79 LUAI_FUNC void luaK_checkstack (FuncState *fs, int n); 80 LUAI_FUNC void luaK_int (FuncState *fs, int reg, lua_Integer n); 81 LUAI_FUNC void luaK_dischargevars (FuncState *fs, expdesc *e); 82 LUAI_FUNC int luaK_exp2anyreg (FuncState *fs, expdesc *e); 83 LUAI_FUNC void luaK_exp2anyregup (FuncState *fs, expdesc *e); 84 LUAI_FUNC void luaK_exp2nextreg (FuncState *fs, expdesc *e); 85 LUAI_FUNC void luaK_exp2val (FuncState *fs, expdesc *e); 86 LUAI_FUNC int luaK_exp2RK (FuncState *fs, expdesc *e); 87 LUAI_FUNC void luaK_self (FuncState *fs, expdesc *e, expdesc *key); 88 LUAI_FUNC void luaK_indexed (FuncState *fs, expdesc *t, expdesc *k); 89 LUAI_FUNC void luaK_goiftrue (FuncState *fs, expdesc *e); 90 LUAI_FUNC void luaK_goiffalse (FuncState *fs, expdesc *e); 91 LUAI_FUNC void luaK_storevar (FuncState *fs, expdesc *var, expdesc *e); 92 LUAI_FUNC void luaK_setreturns (FuncState *fs, expdesc *e, int nresults); 93 LUAI_FUNC void luaK_setoneret (FuncState *fs, expdesc *e); 94 LUAI_FUNC int luaK_jump (FuncState *fs); 95 LUAI_FUNC void luaK_ret (FuncState *fs, int first, int nret); 96 LUAI_FUNC void luaK_patchlist (FuncState *fs, int list, int target); 97 LUAI_FUNC void luaK_patchtohere (FuncState *fs, int list); 98 LUAI_FUNC void luaK_concat (FuncState *fs, int *l1, int l2); 99 LUAI_FUNC int luaK_getlabel (FuncState *fs); 100 LUAI_FUNC void luaK_prefix (FuncState *fs, UnOpr op, expdesc *v, int line); 101 LUAI_FUNC void luaK_infix (FuncState *fs, BinOpr op, expdesc *v); 102 LUAI_FUNC void luaK_posfix (FuncState *fs, BinOpr op, expdesc *v1, 103 expdesc *v2, int line); 104 LUAI_FUNC void luaK_settablesize (FuncState *fs, int pc, 105 int ra, int asize, int hsize); 106 LUAI_FUNC void luaK_setlist (FuncState *fs, int base, int nelems, int tostore); 107 LUAI_FUNC void luaK_finish (FuncState *fs); 108 LUAI_FUNC l_noret luaK_semerror (LexState *ls, const char *msg); 109 110 111 #endif 112