# lua/lcode.h File Reference

`#include "llex.h"`
`#include "lobject.h"`
`#include "lopcodes.h"`
`#include "lparser.h"`

Include dependency graph for lcode.h:

This graph shows which files directly or indirectly include this file:

Go to the source code of this file.

## Defines
#define | NO_JUMP (-1)
#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)
## Enumerations
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 }
enum | UnOpr { OPR_MINUS, OPR_NOT, OPR_LEN, OPR_NOUNOPR }
## Functions
int | luaK_codeABx (FuncState *fs, OpCode o, int A, unsigned int Bx)
int | luaK_codeABC (FuncState *fs, OpCode o, int A, int B, int C)
void | luaK_fixline (FuncState *fs, int line)
void | luaK_nil (FuncState *fs, int from, int n)
void | luaK_reserveregs (FuncState *fs, int n)
void | luaK_checkstack (FuncState *fs, int n)
int | luaK_stringK (FuncState *fs, TString *s)
int | luaK_numberK (FuncState *fs, lua_Number r)
void | luaK_dischargevars (FuncState *fs, expdesc *e)
int | luaK_exp2anyreg (FuncState *fs, expdesc *e)
void | luaK_exp2nextreg (FuncState *fs, expdesc *e)
void | luaK_exp2val (FuncState *fs, expdesc *e)
int | luaK_exp2RK (FuncState *fs, expdesc *e)
void | luaK_self (FuncState *fs, expdesc *e, expdesc *key)
void | luaK_indexed (FuncState *fs, expdesc *t, expdesc *k)
void | luaK_goiftrue (FuncState *fs, expdesc *e)
void | luaK_storevar (FuncState *fs, expdesc *var, expdesc *e)
void | luaK_setreturns (FuncState *fs, expdesc *e, int nresults)
void | luaK_setoneret (FuncState *fs, expdesc *e)
int | luaK_jump (FuncState *fs)
void | luaK_ret (FuncState *fs, int first, int nret)
void | luaK_patchlist (FuncState *fs, int list, int target)
void | luaK_patchtohere (FuncState *fs, int list)
void | luaK_concat (FuncState *fs, int *l1, int l2)
int | luaK_getlabel (FuncState *fs)
void | luaK_prefix (FuncState *fs, UnOpr op, expdesc *v)
void | luaK_infix (FuncState *fs, BinOpr op, expdesc *v)
void | luaK_posfix (FuncState *fs, BinOpr op, expdesc *v1, expdesc *v2)
void | luaK_setlist (FuncState *fs, int base, int nelems, int tostore)

## Define Documentation

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

Definition at line 39 of file lcode.h.

Referenced by discharge2reg(), exprstat(), jumponcond(), luaK_posfix(), luaK_setoneret(), luaK_setreturns(), and retstat().

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

Definition at line 41 of file lcode.h.

Referenced by forbody(), and luaK_jump().

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

Definition at line 43 of file lcode.h.

Referenced by funcargs(), lastlistfield(), and retstat().

#define NO_JUMP (-1)

Definition at line 20 of file lcode.h.

Referenced by block(), dischargejpc(), enterblock(), exp2reg(), fixjump(), forbody(), getjump(), ifstat(), init_exp(), isnumeral(), luaK_concat(), luaK_goiffalse(), luaK_goiftrue(), luaK_jump(), luaK_posfix(), luaK_prefix(), need_value(), open_func(), patchlistaux(), and removevalues().

## Enumeration Type Documentation

enum BinOpr

Enumerator:

  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 |

Definition at line 26 of file lcode.h.

enum UnOpr

Enumerator:

  OPR_MINUS |
  OPR_NOT |
  OPR_LEN |
  OPR_NOUNOPR |

Definition at line 36 of file lcode.h.

## Function Documentation

void luaK_checkstack | ( | FuncState * | fs,
|  | int | n |
| ) |  |  |

Definition at line 199 of file lcode.c.

References cast_byte, FuncState::f, FuncState::freereg, FuncState::ls, luaX_syntaxerror(), MAXSTACK, and Proto::maxstacksize.

Referenced by forlist(), and luaK_reserveregs().

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

Definition at line 812 of file lcode.c.

References CREATE_ABC, getBMode, getCMode, getOpMode, iABC, LexState::lastline, FuncState::ls, lua_assert, luaK_code(), and OpArgN.

Referenced by breakstat(), check_conflict(), code_label(), codearith(), codenot(), condjump(), constructor(), discharge2reg(), forbody(), funcargs(), leaveblock(), luaK_dischargevars(), luaK_nil(), luaK_ret(), luaK_self(), luaK_setlist(), luaK_storevar(), pushclosure(), recfield(), and simpleexp().

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

Definition at line 820 of file lcode.c.

References CREATE_ABx, getCMode, getOpMode, iABx, iAsBx, LexState::lastline, FuncState::ls, lua_assert, luaK_code(), and OpArgN.

Referenced by discharge2reg(), fornum(), luaK_dischargevars(), luaK_storevar(), and pushclosure().

void luaK_concat | ( | FuncState * | fs,
|  | int * | l1,
|  | int | l2 |
| ) |  |  |

Definition at line 185 of file lcode.c.

References fixjump(), getjump(), next, and NO_JUMP.

Referenced by breakstat(), exp2reg(), ifstat(), luaK_goiffalse(), luaK_goiftrue(), luaK_jump(), luaK_patchtohere(), and luaK_posfix().

void luaK_dischargevars | ( | FuncState * | fs,
|  | expdesc * | e |
| ) |  |  |

Definition at line 304 of file lcode.c.

References freereg(), expdesc::k, luaK_codeABC(), luaK_codeABx(), luaK_setoneret(), OP_GETGLOBAL, OP_GETTABLE, OP_GETUPVAL, expdesc::s, expdesc::u, VCALL, VGLOBAL, VINDEXED, VLOCAL, VNONRELOC, VRELOCABLE, VUPVAL, and VVARARG.

Referenced by codenot(), discharge2reg(), luaK_exp2anyreg(), luaK_exp2nextreg(), luaK_exp2val(), luaK_goiffalse(), luaK_goiftrue(), luaK_posfix(), and prefixexp().

int luaK_exp2anyreg | ( | FuncState * | fs,
|  | expdesc * | e |
| ) |  |  |

Definition at line 422 of file lcode.c.

References exp2reg(), hasjumps, expdesc::k, luaK_dischargevars(), luaK_exp2nextreg(), FuncState::nactvar, expdesc::s, expdesc::u, and VNONRELOC.

Referenced by field(), luaK_exp2RK(), luaK_exp2val(), luaK_prefix(), luaK_self(), luaK_storevar(), primaryexp(), and retstat().

void luaK_exp2nextreg | ( | FuncState * | fs,
|  | expdesc * | e |
| ) |  |  |

Definition at line 414 of file lcode.c.

References exp2reg(), freeexp(), FuncState::freereg, luaK_dischargevars(), and luaK_reserveregs().

Referenced by adjust_assign(), closelistfield(), constructor(), exp1(), explist1(), funcargs(), lastlistfield(), luaK_exp2anyreg(), luaK_infix(), luaK_posfix(), primaryexp(), and retstat().

int luaK_exp2RK | ( | FuncState * | fs,
|  | expdesc * | e |
| ) |  |  |

Definition at line 444 of file lcode.c.

References boolK(), expdesc::k, luaK_exp2anyreg(), luaK_exp2val(), luaK_numberK(), MAXINDEXRK, nilK(), FuncState::nk, expdesc::nval, RKASK, expdesc::s, expdesc::u, VFALSE, VK, VKNUM, VNIL, and VTRUE.

Referenced by codearith(), codecomp(), luaK_indexed(), luaK_infix(), luaK_self(), luaK_storevar(), and recfield().

void luaK_exp2val | ( | FuncState * | fs,
|  | expdesc * | e |
| ) |  |  |

Definition at line 436 of file lcode.c.

References hasjumps, luaK_dischargevars(), and luaK_exp2anyreg().

Referenced by luaK_exp2RK(), luaK_posfix(), and yindex().

void luaK_fixline | ( | FuncState * | fs,
|  | int | line |
| ) |  |  |

Definition at line 792 of file lcode.c.

References FuncState::f, Proto::lineinfo, and FuncState::pc.

Referenced by forbody(), funcargs(), and funcstat().

int luaK_getlabel | ( | FuncState * | fs | ) |

Definition at line 94 of file lcode.c.

References FuncState::lasttarget, and FuncState::pc.

Referenced by code_label(), exp2reg(), luaK_patchtohere(), repeatstat(), and whilestat().

void luaK_goiftrue | ( | FuncState * | fs,
|  | expdesc * | e |
| ) |  |  |

Definition at line 539 of file lcode.c.

References expdesc::f, invertjump(), jumponcond(), expdesc::k, luaK_concat(), luaK_dischargevars(), luaK_jump(), luaK_patchtohere(), NO_JUMP, expdesc::s, expdesc::t, expdesc::u, VFALSE, VJMP, VK, VKNUM, and VTRUE.

Referenced by cond(), and luaK_infix().

void luaK_indexed | ( | FuncState * | fs,
|  | expdesc * | t,
|  | expdesc * | k |
| ) |  |  |

Definition at line 629 of file lcode.c.

References expdesc::k, luaK_exp2RK(), expdesc::s, expdesc::u, and VINDEXED.

Referenced by field(), and primaryexp().

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

Definition at line 718 of file lcode.c.

References isnumeral(), luaK_exp2nextreg(), luaK_exp2RK(), luaK_goiffalse(), luaK_goiftrue(), OPR_ADD, OPR_AND, OPR_CONCAT, OPR_DIV, OPR_MOD, OPR_MUL, OPR_OR, OPR_POW, and OPR_SUB.

Referenced by subexpr().

int luaK_jump | ( | FuncState * | fs | ) |

Definition at line 59 of file lcode.c.

References FuncState::jpc, luaK_codeAsBx, luaK_concat(), NO_JUMP, and OP_JMP.

Referenced by breakstat(), condjump(), exp2reg(), forbody(), ifstat(), luaK_goiffalse(), luaK_goiftrue(), repeatstat(), and whilestat().

void luaK_nil | ( | FuncState * | fs,
|  | int | from,
|  | int | n |
| ) |  |  |

Definition at line 35 of file lcode.c.

References Proto::code, FuncState::f, GET_OPCODE, GETARG_A, GETARG_B, FuncState::lasttarget, luaK_codeABC(), FuncState::nactvar, OP_LOADNIL, FuncState::pc, and SETARG_B.

Referenced by adjust_assign(), and discharge2reg().

int luaK_numberK | ( | FuncState * | fs,
|  | lua_Number | r |
| ) |  |  |

Definition at line 257 of file lcode.c.

References addk(), and setnvalue.

Referenced by discharge2reg(), fornum(), and luaK_exp2RK().

void luaK_patchlist | ( | FuncState * | fs,
|  | int | list,
|  | int | target |
| ) |  |  |

Definition at line 169 of file lcode.c.

References lua_assert, luaK_patchtohere(), NO_REG, patchlistaux(), and FuncState::pc.

Referenced by forbody(), repeatstat(), and whilestat().

void luaK_patchtohere | ( | FuncState * | fs,
|  | int | list |
| ) |  |  |

Definition at line 179 of file lcode.c.

References FuncState::jpc, luaK_concat(), and luaK_getlabel().

Referenced by exp2reg(), forbody(), ifstat(), leaveblock(), luaK_goiffalse(), luaK_goiftrue(), luaK_patchlist(), repeatstat(), and whilestat().

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

Definition at line 745 of file lcode.c.

References codearith(), codecomp(), expdesc::f, freeexp(), GET_OPCODE, GETARG_B, getcode, expdesc::k, lua_assert, luaK_concat(), luaK_dischargevars(), luaK_exp2nextreg(), luaK_exp2val(), NO_JUMP, OP_ADD, OP_CONCAT, OP_DIV, OP_EQ, OP_LE, OP_LT, OP_MOD, OP_MUL, OP_POW, OP_SUB, OPR_ADD, OPR_AND, OPR_CONCAT, OPR_DIV, OPR_EQ, OPR_GE, OPR_GT, OPR_LE, OPR_LT, OPR_MOD, OPR_MUL, OPR_NE, OPR_OR, OPR_POW, OPR_SUB, expdesc::s, SETARG_B, expdesc::t, expdesc::u, and VRELOCABLE.

Referenced by subexpr().

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

Definition at line 697 of file lcode.c.

References codearith(), codenot(), expdesc::f, isnumeral(), expdesc::k, lua_assert, luaK_exp2anyreg(), NO_JUMP, expdesc::nval, OP_LEN, OP_UNM, OPR_LEN, OPR_MINUS, OPR_NOT, expdesc::t, expdesc::u, and VKNUM.

Referenced by subexpr().

void luaK_reserveregs | ( | FuncState * | fs,
|  | int | n |
| ) |  |  |

Definition at line 209 of file lcode.c.

References FuncState::freereg, and luaK_checkstack().

Referenced by adjust_assign(), check_conflict(), discharge2anyreg(), forbody(), fornum(), localfunc(), luaK_exp2nextreg(), luaK_self(), luaK_setreturns(), and parlist().

void luaK_ret | ( | FuncState * | fs,
|  | int | first,
|  | int | nret |
| ) |  |  |

Definition at line 69 of file lcode.c.

References luaK_codeABC(), and OP_RETURN.

Referenced by close_func(), and retstat().

void luaK_self | ( | FuncState * | fs,
|  | expdesc * | e,
|  | expdesc * | key |
| ) |  |  |

Definition at line 503 of file lcode.c.

References freeexp(), FuncState::freereg, CCallS::func, expdesc::k, luaK_codeABC(), luaK_exp2anyreg(), luaK_exp2RK(), luaK_reserveregs(), OP_SELF, expdesc::s, expdesc::u, and VNONRELOC.

Referenced by primaryexp().

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

Definition at line 827 of file lcode.c.

References cast, FuncState::freereg, LexState::lastline, LFIELDS_PER_FLUSH, FuncState::ls, lua_assert, luaK_code(), luaK_codeABC(), MAXARG_C, and OP_SETLIST.

Referenced by closelistfield(), and lastlistfield().

void luaK_setoneret | ( | FuncState * | fs,
|  | expdesc * | e |
| ) |  |  |

Definition at line 292 of file lcode.c.

References GETARG_A, getcode, expdesc::k, expdesc::s, SETARG_B, expdesc::u, VCALL, VNONRELOC, VRELOCABLE, and VVARARG.

Referenced by assignment(), and luaK_dischargevars().

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

Definition at line 280 of file lcode.c.

References FuncState::freereg, getcode, expdesc::k, luaK_reserveregs(), SETARG_A, SETARG_B, SETARG_C, VCALL, and VVARARG.

Referenced by adjust_assign().

void luaK_storevar | ( | FuncState * | fs,
|  | expdesc * | var,
|  | expdesc * | e |
| ) |  |  |

Definition at line 472 of file lcode.c.

References exp2reg(), freeexp(), expdesc::k, lua_assert, luaK_codeABC(), luaK_codeABx(), luaK_exp2anyreg(), luaK_exp2RK(), OP_SETGLOBAL, OP_SETTABLE, OP_SETUPVAL, expdesc::s, expdesc::u, VGLOBAL, VINDEXED, VLOCAL, and VUPVAL.

Referenced by assignment(), funcstat(), and localfunc().

int luaK_stringK | ( | FuncState * | fs,
|  | TString * | s |
| ) |  |  |

Definition at line 250 of file lcode.c.

References addk(), FuncState::L, and setsvalue.

Referenced by codestring(), and singlevar().