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*/ 26typedef 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 51typedef 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 62LUAI_FUNC int luaK_code (FuncState *fs, Instruction i); 63LUAI_FUNC int luaK_codeABx (FuncState *fs, OpCode o, int A, unsigned int Bx); 64LUAI_FUNC int luaK_codeAsBx (FuncState *fs, OpCode o, int A, int Bx); 65LUAI_FUNC int luaK_codeABCk (FuncState *fs, OpCode o, int A, 66 int B, int C, int k); 67LUAI_FUNC int luaK_isKint (expdesc *e); 68LUAI_FUNC int luaK_exp2const (FuncState *fs, const expdesc *e, TValue *v); 69LUAI_FUNC void luaK_fixline (FuncState *fs, int line); 70LUAI_FUNC void luaK_nil (FuncState *fs, int from, int n); 71LUAI_FUNC void luaK_reserveregs (FuncState *fs, int n); 72LUAI_FUNC void luaK_checkstack (FuncState *fs, int n); 73LUAI_FUNC void luaK_int (FuncState *fs, int reg, lua_Integer n); 74LUAI_FUNC void luaK_dischargevars (FuncState *fs, expdesc *e); 75LUAI_FUNC int luaK_exp2anyreg (FuncState *fs, expdesc *e); 76LUAI_FUNC void luaK_exp2anyregup (FuncState *fs, expdesc *e); 77LUAI_FUNC void luaK_exp2nextreg (FuncState *fs, expdesc *e); 78LUAI_FUNC void luaK_exp2val (FuncState *fs, expdesc *e); 79LUAI_FUNC int luaK_exp2RK (FuncState *fs, expdesc *e); 80LUAI_FUNC void luaK_self (FuncState *fs, expdesc *e, expdesc *key); 81LUAI_FUNC void luaK_indexed (FuncState *fs, expdesc *t, expdesc *k); 82LUAI_FUNC void luaK_goiftrue (FuncState *fs, expdesc *e); 83LUAI_FUNC void luaK_goiffalse (FuncState *fs, expdesc *e); 84LUAI_FUNC void luaK_storevar (FuncState *fs, expdesc *var, expdesc *e); 85LUAI_FUNC void luaK_setreturns (FuncState *fs, expdesc *e, int nresults); 86LUAI_FUNC void luaK_setoneret (FuncState *fs, expdesc *e); 87LUAI_FUNC int luaK_jump (FuncState *fs); 88LUAI_FUNC void luaK_ret (FuncState *fs, int first, int nret); 89LUAI_FUNC void luaK_patchlist (FuncState *fs, int list, int target); 90LUAI_FUNC void luaK_patchtohere (FuncState *fs, int list); 91LUAI_FUNC void luaK_concat (FuncState *fs, int *l1, int l2); 92LUAI_FUNC int luaK_getlabel (FuncState *fs); 93LUAI_FUNC void luaK_prefix (FuncState *fs, UnOpr op, expdesc *v, int line); 94LUAI_FUNC void luaK_infix (FuncState *fs, BinOpr op, expdesc *v); 95LUAI_FUNC void luaK_posfix (FuncState *fs, BinOpr op, expdesc *v1, 96 expdesc *v2, int line); 97LUAI_FUNC void luaK_settablesize (FuncState *fs, int pc, 98 int ra, int asize, int hsize); 99LUAI_FUNC void luaK_setlist (FuncState *fs, int base, int nelems, int tostore); 100LUAI_FUNC void luaK_finish (FuncState *fs); 101LUAI_FUNC l_noret luaK_semerror (LexState *ls, const char *msg); 102 103 104#endif 105