lparser.h File Reference

#include "llimits.h"
#include "lobject.h"
#include "lzio.h"

Go to the source code of this file.

Data Structures
struct	expdesc
union	Vardesc
struct	Labeldesc
struct	Labellist
struct	Dyndata
struct	FuncState

Macros
#define	vkisvar(k)   (VLOCAL <= (k) && (k) <= VINDEXED)
#define	vkisinreg(k)   ((k) == VNONRELOC || (k) == VLOCAL)

Typedefs
typedef struct expdesc	expdesc
typedef struct Vardesc	Vardesc
typedef struct Labeldesc	Labeldesc
typedef struct Labellist	Labellist
typedef struct Dyndata	Dyndata
typedef struct FuncState	FuncState

Enumerations
enum	expkind {   VVOID , VNIL , VTRUE , VFALSE ,   VK , VKNUM , VNONRELOC , VLOCAL ,   VUPVAL , VINDEXED , VJMP , VRELOCABLE ,   VCALL , VVARARG }

Functions
LUAI_FUNC Closure *	luaY_parser (lua_State *L, ZIO *z, Mbuffer *buff, Dyndata *dyd, const char *name, int firstchar)

Macro Definition Documentation

vkisinreg

#define vkisinreg

(

k

)

((k) == VNONRELOC || (k) == VLOCAL)

Definition at line 38 of file lua-5.2.4/src/lparser.h.

Referenced by luaK_indexed().

vkisvar

#define vkisvar

(

k

)

(VLOCAL <= (k) && (k) <= VINDEXED)

Definition at line 37 of file lua-5.2.4/src/lparser.h.

Referenced by assignment(), assignment(), and restassign().

Typedef Documentation

Dyndata

typedef struct Dyndata Dyndata

expdesc

typedef struct expdesc expdesc

FuncState

typedef struct FuncState FuncState

Labeldesc

typedef struct Labeldesc Labeldesc

Labellist

typedef struct Labellist Labellist

Vardesc

typedef struct Vardesc Vardesc

Enumeration Type Documentation

expkind

enum expkind

Enumerator
VVOID
VNIL
VTRUE
VFALSE
VK
VKNUM
VNONRELOC
VLOCAL
VUPVAL
VINDEXED
VJMP
VRELOCABLE
VCALL
VVARARG

Definition at line 19 of file lua-5.2.4/src/lparser.h.

             {
  VVOID,    /* no value */
  VNIL,
  VTRUE,
  VFALSE,
  VK,       /* info = index of constant in `k' */
  VKNUM,    /* nval = numerical value */
  VNONRELOC,    /* info = result register */
  VLOCAL,   /* info = local register */
  VUPVAL,       /* info = index of upvalue in 'upvalues' */
  VINDEXED, /* t = table register/upvalue; idx = index R/K */
  VJMP,     /* info = instruction pc */
  VRELOCABLE,   /* info = instruction pc */
  VCALL,    /* info = instruction pc */
  VVARARG   /* info = instruction pc */
} expkind;

Function Documentation

luaY_parser()

LUAI_FUNC Closure * luaY_parser	(	lua_State *	L,
		ZIO *	z,
		Mbuffer *	buff,
		Dyndata *	dyd,
		const char *	name,
		int	firstchar )

Definition at line 1618 of file lua-5.2.4/src/lparser.c.

                                                                     {
  LexState lexstate;
  FuncState funcstate;
  Closure *cl = luaF_newLclosure(L, 1);  /* create main closure */
  /* anchor closure (to avoid being collected) */
  setclLvalue(L, L->top, cl);
  incr_top(L);
  funcstate.f = cl->l.p = luaF_newproto(L);
  funcstate.f->source = luaS_new(L, name);  /* create and anchor TString */
  lexstate.buff = buff;
  lexstate.dyd = dyd;
  dyd->actvar.n = dyd->gt.n = dyd->label.n = 0;
  luaX_setinput(L, &lexstate, z, funcstate.f->source, firstchar);
  mainfunc(&lexstate, &funcstate);
  lua_assert(!funcstate.prev && funcstate.nups == 1 && !lexstate.fs);
  /* all scopes should be correctly finished */
  lua_assert(dyd->actvar.n == 0 && dyd->gt.n == 0 && dyd->label.n == 0);
  return cl;  /* it's on the stack too */
}