/*

** $Id: lcode.h,v 1.48.1.1 2007/12/27 13:02:25 roberto Exp $

** Code generator for Lua

** See Copyright Notice in lua.h

*/

#ifndef lcode_h

#define lcode_h

#include "llex.h"

#include "lobject.h"

#include "lopcodes.h"

#include "lparser.h"

/*

** Marks the end of a patch list. It is an invalid value both as an absolute

** address, and as a list link (would link an element to itself).

*/

#define NO_JUMP (-1)

/*

** grep "ORDER OPR" if you change these enums

*/

typedef enum BinOpr {

  OPR_ADD, OPR_SUB, OPR_MUL, OPR_DIV, OPR_MOD, OPR_POW,

  OPR_CONCAT,

  OPR_NE, OPR_EQ,

  OPR_LT, OPR_LE, OPR_GT, OPR_GE,

  OPR_AND, OPR_OR,

  OPR_NOBINOPR

} BinOpr;

typedef enum UnOpr { OPR_MINUS, OPR_NOT, OPR_LEN, OPR_NOUNOPR } UnOpr;

#define getcode(fs,e)	((fs)->f->code[(e)->u.s.info])

#define luaK_codeAsBx(fs,o,A,sBx)	luaK_codeABx(fs,o,A,(sBx)+MAXARG_sBx)

#define luaK_setmultret(fs,e)	luaK_setreturns(fs, e, LUA_MULTRET)

LUAI_FUNC int luaK_codeABx (FuncState *fs, OpCode o, int A, unsigned int Bx);

LUAI_FUNC int luaK_codeABC (FuncState *fs, OpCode o, int A, int B, int C);

LUAI_FUNC void luaK_fixline (FuncState *fs, int line);

LUAI_FUNC void luaK_nil (FuncState *fs, int from, int n);

LUAI_FUNC void luaK_reserveregs (FuncState *fs, int n);

LUAI_FUNC void luaK_checkstack (FuncState *fs, int n);

LUAI_FUNC int luaK_stringK (FuncState *fs, TString *s);

LUAI_FUNC int luaK_numberK (FuncState *fs, lua_Number r);

LUAI_FUNC void luaK_dischargevars (FuncState *fs, expdesc *e);

LUAI_FUNC int luaK_exp2anyreg (FuncState *fs, expdesc *e);

LUAI_FUNC void luaK_exp2nextreg (FuncState *fs, expdesc *e);

LUAI_FUNC void luaK_exp2val (FuncState *fs, expdesc *e);

LUAI_FUNC int luaK_exp2RK (FuncState *fs, expdesc *e);

LUAI_FUNC void luaK_self (FuncState *fs, expdesc *e, expdesc *key);

LUAI_FUNC void luaK_indexed (FuncState *fs, expdesc *t, expdesc *k);

LUAI_FUNC void luaK_goiftrue (FuncState *fs, expdesc *e);

LUAI_FUNC void luaK_storevar (FuncState *fs, expdesc *var, expdesc *e);

LUAI_FUNC void luaK_setreturns (FuncState *fs, expdesc *e, int nresults);

LUAI_FUNC void luaK_setoneret (FuncState *fs, expdesc *e);

LUAI_FUNC int luaK_jump (FuncState *fs);

LUAI_FUNC void luaK_ret (FuncState *fs, int first, int nret);

LUAI_FUNC void luaK_patchlist (FuncState *fs, int list, int target);

LUAI_FUNC void luaK_patchtohere (FuncState *fs, int list);

LUAI_FUNC void luaK_concat (FuncState *fs, int *l1, int l2);

LUAI_FUNC int luaK_getlabel (FuncState *fs);

LUAI_FUNC void luaK_prefix (FuncState *fs, UnOpr op, expdesc *v);

LUAI_FUNC void luaK_infix (FuncState *fs, BinOpr op, expdesc *v);

LUAI_FUNC void luaK_posfix (FuncState *fs, BinOpr op, expdesc *v1, expdesc *v2);

LUAI_FUNC void luaK_setlist (FuncState *fs, int base, int nelems, int tostore);

#endif