misc/liblua/lvm.c
author dag10
Mon, 21 Jan 2013 21:52:49 -0500
changeset 8424 225ede46e3dc
parent 3697 d5b30d6373fc
child 10017 de822cd3df3a
permissions -rw-r--r--
On pagenetgame, when window is too small the map/game options becomes a tabbed interface to allow for a few lines of chat to always be visible. Restored HWForm's min height to 580. Fixed the 2px alignment issue with the map list and map previews' top edges that unC0Rr was whining about. <3
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
2812
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
     1
/*
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
     2
** $Id: lvm.c,v 2.63.1.3 2007/12/28 15:32:23 roberto Exp $
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
     3
** Lua virtual machine
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
     4
** See Copyright Notice in lua.h
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
     5
*/
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
     6
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
     7
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
     8
#include <stdio.h>
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
     9
#include <stdlib.h>
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    10
#include <string.h>
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    11
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    12
#define lvm_c
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    13
#define LUA_CORE
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    14
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    15
#include "lua.h"
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    16
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    17
#include "ldebug.h"
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    18
#include "ldo.h"
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    19
#include "lfunc.h"
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    20
#include "lgc.h"
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    21
#include "lobject.h"
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    22
#include "lopcodes.h"
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    23
#include "lstate.h"
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    24
#include "lstring.h"
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    25
#include "ltable.h"
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    26
#include "ltm.h"
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    27
#include "lvm.h"
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    28
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    29
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    30
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    31
/* limit for table tag-method chains (to avoid loops) */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    32
#define MAXTAGLOOP	100
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    33
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    34
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    35
const TValue *luaV_tonumber (const TValue *obj, TValue *n) {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    36
  lua_Number num;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    37
  if (ttisnumber(obj)) return obj;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    38
  if (ttisstring(obj) && luaO_str2d(svalue(obj), &num)) {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    39
    setnvalue(n, num);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    40
    return n;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    41
  }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    42
  else
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    43
    return NULL;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    44
}
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    45
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    46
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    47
int luaV_tostring (lua_State *L, StkId obj) {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    48
  if (!ttisnumber(obj))
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    49
    return 0;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    50
  else {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    51
    char s[LUAI_MAXNUMBER2STR];
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    52
    lua_Number n = nvalue(obj);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    53
    lua_number2str(s, n);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    54
    setsvalue2s(L, obj, luaS_new(L, s));
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    55
    return 1;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    56
  }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    57
}
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    58
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    59
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    60
static void traceexec (lua_State *L, const Instruction *pc) {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    61
  lu_byte mask = L->hookmask;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    62
  const Instruction *oldpc = L->savedpc;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    63
  L->savedpc = pc;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    64
  if ((mask & LUA_MASKCOUNT) && L->hookcount == 0) {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    65
    resethookcount(L);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    66
    luaD_callhook(L, LUA_HOOKCOUNT, -1);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    67
  }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    68
  if (mask & LUA_MASKLINE) {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    69
    Proto *p = ci_func(L->ci)->l.p;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    70
    int npc = pcRel(pc, p);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    71
    int newline = getline(p, npc);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    72
    /* call linehook when enter a new function, when jump back (loop),
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    73
       or when enter a new line */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    74
    if (npc == 0 || pc <= oldpc || newline != getline(p, pcRel(oldpc, p)))
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    75
      luaD_callhook(L, LUA_HOOKLINE, newline);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    76
  }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    77
}
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    78
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    79
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    80
static void callTMres (lua_State *L, StkId res, const TValue *f,
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    81
                        const TValue *p1, const TValue *p2) {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    82
  ptrdiff_t result = savestack(L, res);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    83
  setobj2s(L, L->top, f);  /* push function */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    84
  setobj2s(L, L->top+1, p1);  /* 1st argument */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    85
  setobj2s(L, L->top+2, p2);  /* 2nd argument */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    86
  luaD_checkstack(L, 3);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    87
  L->top += 3;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    88
  luaD_call(L, L->top - 3, 1);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    89
  res = restorestack(L, result);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    90
  L->top--;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    91
  setobjs2s(L, res, L->top);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    92
}
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    93
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    94
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    95
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    96
static void callTM (lua_State *L, const TValue *f, const TValue *p1,
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    97
                    const TValue *p2, const TValue *p3) {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    98
  setobj2s(L, L->top, f);  /* push function */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
    99
  setobj2s(L, L->top+1, p1);  /* 1st argument */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   100
  setobj2s(L, L->top+2, p2);  /* 2nd argument */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   101
  setobj2s(L, L->top+3, p3);  /* 3th argument */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   102
  luaD_checkstack(L, 4);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   103
  L->top += 4;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   104
  luaD_call(L, L->top - 4, 0);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   105
}
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   106
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   107
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   108
void luaV_gettable (lua_State *L, const TValue *t, TValue *key, StkId val) {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   109
  int loop;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   110
  for (loop = 0; loop < MAXTAGLOOP; loop++) {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   111
    const TValue *tm;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   112
    if (ttistable(t)) {  /* `t' is a table? */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   113
      Table *h = hvalue(t);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   114
      const TValue *res = luaH_get(h, key); /* do a primitive get */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   115
      if (!ttisnil(res) ||  /* result is no nil? */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   116
          (tm = fasttm(L, h->metatable, TM_INDEX)) == NULL) { /* or no TM? */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   117
        setobj2s(L, val, res);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   118
        return;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   119
      }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   120
      /* else will try the tag method */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   121
    }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   122
    else if (ttisnil(tm = luaT_gettmbyobj(L, t, TM_INDEX)))
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   123
      luaG_typeerror(L, t, "index");
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   124
    if (ttisfunction(tm)) {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   125
      callTMres(L, val, tm, t, key);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   126
      return;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   127
    }
3697
d5b30d6373fc remove trailing spaces from end of line
koda
parents: 2812
diff changeset
   128
    t = tm;  /* else repeat with `tm' */
2812
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   129
  }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   130
  luaG_runerror(L, "loop in gettable");
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   131
}
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   132
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   133
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   134
void luaV_settable (lua_State *L, const TValue *t, TValue *key, StkId val) {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   135
  int loop;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   136
  for (loop = 0; loop < MAXTAGLOOP; loop++) {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   137
    const TValue *tm;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   138
    if (ttistable(t)) {  /* `t' is a table? */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   139
      Table *h = hvalue(t);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   140
      TValue *oldval = luaH_set(L, h, key); /* do a primitive set */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   141
      if (!ttisnil(oldval) ||  /* result is no nil? */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   142
          (tm = fasttm(L, h->metatable, TM_NEWINDEX)) == NULL) { /* or no TM? */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   143
        setobj2t(L, oldval, val);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   144
        luaC_barriert(L, h, val);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   145
        return;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   146
      }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   147
      /* else will try the tag method */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   148
    }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   149
    else if (ttisnil(tm = luaT_gettmbyobj(L, t, TM_NEWINDEX)))
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   150
      luaG_typeerror(L, t, "index");
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   151
    if (ttisfunction(tm)) {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   152
      callTM(L, tm, t, key, val);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   153
      return;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   154
    }
3697
d5b30d6373fc remove trailing spaces from end of line
koda
parents: 2812
diff changeset
   155
    t = tm;  /* else repeat with `tm' */
2812
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   156
  }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   157
  luaG_runerror(L, "loop in settable");
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   158
}
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   159
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   160
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   161
static int call_binTM (lua_State *L, const TValue *p1, const TValue *p2,
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   162
                       StkId res, TMS event) {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   163
  const TValue *tm = luaT_gettmbyobj(L, p1, event);  /* try first operand */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   164
  if (ttisnil(tm))
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   165
    tm = luaT_gettmbyobj(L, p2, event);  /* try second operand */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   166
  if (ttisnil(tm)) return 0;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   167
  callTMres(L, res, tm, p1, p2);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   168
  return 1;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   169
}
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   170
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   171
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   172
static const TValue *get_compTM (lua_State *L, Table *mt1, Table *mt2,
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   173
                                  TMS event) {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   174
  const TValue *tm1 = fasttm(L, mt1, event);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   175
  const TValue *tm2;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   176
  if (tm1 == NULL) return NULL;  /* no metamethod */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   177
  if (mt1 == mt2) return tm1;  /* same metatables => same metamethods */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   178
  tm2 = fasttm(L, mt2, event);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   179
  if (tm2 == NULL) return NULL;  /* no metamethod */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   180
  if (luaO_rawequalObj(tm1, tm2))  /* same metamethods? */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   181
    return tm1;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   182
  return NULL;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   183
}
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   184
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   185
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   186
static int call_orderTM (lua_State *L, const TValue *p1, const TValue *p2,
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   187
                         TMS event) {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   188
  const TValue *tm1 = luaT_gettmbyobj(L, p1, event);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   189
  const TValue *tm2;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   190
  if (ttisnil(tm1)) return -1;  /* no metamethod? */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   191
  tm2 = luaT_gettmbyobj(L, p2, event);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   192
  if (!luaO_rawequalObj(tm1, tm2))  /* different metamethods? */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   193
    return -1;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   194
  callTMres(L, L->top, tm1, p1, p2);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   195
  return !l_isfalse(L->top);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   196
}
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   197
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   198
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   199
static int l_strcmp (const TString *ls, const TString *rs) {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   200
  const char *l = getstr(ls);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   201
  size_t ll = ls->tsv.len;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   202
  const char *r = getstr(rs);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   203
  size_t lr = rs->tsv.len;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   204
  for (;;) {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   205
    int temp = strcoll(l, r);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   206
    if (temp != 0) return temp;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   207
    else {  /* strings are equal up to a `\0' */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   208
      size_t len = strlen(l);  /* index of first `\0' in both strings */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   209
      if (len == lr)  /* r is finished? */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   210
        return (len == ll) ? 0 : 1;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   211
      else if (len == ll)  /* l is finished? */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   212
        return -1;  /* l is smaller than r (because r is not finished) */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   213
      /* both strings longer than `len'; go on comparing (after the `\0') */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   214
      len++;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   215
      l += len; ll -= len; r += len; lr -= len;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   216
    }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   217
  }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   218
}
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   219
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   220
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   221
int luaV_lessthan (lua_State *L, const TValue *l, const TValue *r) {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   222
  int res;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   223
  if (ttype(l) != ttype(r))
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   224
    return luaG_ordererror(L, l, r);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   225
  else if (ttisnumber(l))
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   226
    return luai_numlt(nvalue(l), nvalue(r));
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   227
  else if (ttisstring(l))
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   228
    return l_strcmp(rawtsvalue(l), rawtsvalue(r)) < 0;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   229
  else if ((res = call_orderTM(L, l, r, TM_LT)) != -1)
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   230
    return res;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   231
  return luaG_ordererror(L, l, r);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   232
}
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   233
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   234
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   235
static int lessequal (lua_State *L, const TValue *l, const TValue *r) {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   236
  int res;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   237
  if (ttype(l) != ttype(r))
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   238
    return luaG_ordererror(L, l, r);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   239
  else if (ttisnumber(l))
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   240
    return luai_numle(nvalue(l), nvalue(r));
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   241
  else if (ttisstring(l))
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   242
    return l_strcmp(rawtsvalue(l), rawtsvalue(r)) <= 0;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   243
  else if ((res = call_orderTM(L, l, r, TM_LE)) != -1)  /* first try `le' */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   244
    return res;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   245
  else if ((res = call_orderTM(L, r, l, TM_LT)) != -1)  /* else try `lt' */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   246
    return !res;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   247
  return luaG_ordererror(L, l, r);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   248
}
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   249
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   250
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   251
int luaV_equalval (lua_State *L, const TValue *t1, const TValue *t2) {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   252
  const TValue *tm;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   253
  lua_assert(ttype(t1) == ttype(t2));
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   254
  switch (ttype(t1)) {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   255
    case LUA_TNIL: return 1;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   256
    case LUA_TNUMBER: return luai_numeq(nvalue(t1), nvalue(t2));
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   257
    case LUA_TBOOLEAN: return bvalue(t1) == bvalue(t2);  /* true must be 1 !! */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   258
    case LUA_TLIGHTUSERDATA: return pvalue(t1) == pvalue(t2);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   259
    case LUA_TUSERDATA: {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   260
      if (uvalue(t1) == uvalue(t2)) return 1;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   261
      tm = get_compTM(L, uvalue(t1)->metatable, uvalue(t2)->metatable,
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   262
                         TM_EQ);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   263
      break;  /* will try TM */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   264
    }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   265
    case LUA_TTABLE: {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   266
      if (hvalue(t1) == hvalue(t2)) return 1;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   267
      tm = get_compTM(L, hvalue(t1)->metatable, hvalue(t2)->metatable, TM_EQ);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   268
      break;  /* will try TM */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   269
    }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   270
    default: return gcvalue(t1) == gcvalue(t2);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   271
  }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   272
  if (tm == NULL) return 0;  /* no TM? */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   273
  callTMres(L, L->top, tm, t1, t2);  /* call TM */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   274
  return !l_isfalse(L->top);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   275
}
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   276
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   277
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   278
void luaV_concat (lua_State *L, int total, int last) {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   279
  do {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   280
    StkId top = L->base + last + 1;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   281
    int n = 2;  /* number of elements handled in this pass (at least 2) */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   282
    if (!(ttisstring(top-2) || ttisnumber(top-2)) || !tostring(L, top-1)) {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   283
      if (!call_binTM(L, top-2, top-1, top-2, TM_CONCAT))
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   284
        luaG_concaterror(L, top-2, top-1);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   285
    } else if (tsvalue(top-1)->len == 0)  /* second op is empty? */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   286
      (void)tostring(L, top - 2);  /* result is first op (as string) */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   287
    else {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   288
      /* at least two string values; get as many as possible */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   289
      size_t tl = tsvalue(top-1)->len;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   290
      char *buffer;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   291
      int i;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   292
      /* collect total length */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   293
      for (n = 1; n < total && tostring(L, top-n-1); n++) {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   294
        size_t l = tsvalue(top-n-1)->len;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   295
        if (l >= MAX_SIZET - tl) luaG_runerror(L, "string length overflow");
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   296
        tl += l;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   297
      }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   298
      buffer = luaZ_openspace(L, &G(L)->buff, tl);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   299
      tl = 0;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   300
      for (i=n; i>0; i--) {  /* concat all strings */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   301
        size_t l = tsvalue(top-i)->len;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   302
        memcpy(buffer+tl, svalue(top-i), l);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   303
        tl += l;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   304
      }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   305
      setsvalue2s(L, top-n, luaS_newlstr(L, buffer, tl));
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   306
    }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   307
    total -= n-1;  /* got `n' strings to create 1 new */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   308
    last -= n-1;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   309
  } while (total > 1);  /* repeat until only 1 result left */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   310
}
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   311
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   312
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   313
static void Arith (lua_State *L, StkId ra, const TValue *rb,
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   314
                   const TValue *rc, TMS op) {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   315
  TValue tempb, tempc;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   316
  const TValue *b, *c;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   317
  if ((b = luaV_tonumber(rb, &tempb)) != NULL &&
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   318
      (c = luaV_tonumber(rc, &tempc)) != NULL) {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   319
    lua_Number nb = nvalue(b), nc = nvalue(c);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   320
    switch (op) {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   321
      case TM_ADD: setnvalue(ra, luai_numadd(nb, nc)); break;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   322
      case TM_SUB: setnvalue(ra, luai_numsub(nb, nc)); break;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   323
      case TM_MUL: setnvalue(ra, luai_nummul(nb, nc)); break;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   324
      case TM_DIV: setnvalue(ra, luai_numdiv(nb, nc)); break;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   325
      case TM_MOD: setnvalue(ra, luai_nummod(nb, nc)); break;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   326
      case TM_POW: setnvalue(ra, luai_numpow(nb, nc)); break;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   327
      case TM_UNM: setnvalue(ra, luai_numunm(nb)); break;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   328
      default: lua_assert(0); break;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   329
    }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   330
  }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   331
  else if (!call_binTM(L, rb, rc, ra, op))
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   332
    luaG_aritherror(L, rb, rc);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   333
}
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   334
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   335
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   336
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   337
/*
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   338
** some macros for common tasks in `luaV_execute'
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   339
*/
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   340
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   341
#define runtime_check(L, c)	{ if (!(c)) break; }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   342
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   343
#define RA(i)	(base+GETARG_A(i))
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   344
/* to be used after possible stack reallocation */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   345
#define RB(i)	check_exp(getBMode(GET_OPCODE(i)) == OpArgR, base+GETARG_B(i))
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   346
#define RC(i)	check_exp(getCMode(GET_OPCODE(i)) == OpArgR, base+GETARG_C(i))
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   347
#define RKB(i)	check_exp(getBMode(GET_OPCODE(i)) == OpArgK, \
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   348
	ISK(GETARG_B(i)) ? k+INDEXK(GETARG_B(i)) : base+GETARG_B(i))
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   349
#define RKC(i)	check_exp(getCMode(GET_OPCODE(i)) == OpArgK, \
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   350
	ISK(GETARG_C(i)) ? k+INDEXK(GETARG_C(i)) : base+GETARG_C(i))
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   351
#define KBx(i)	check_exp(getBMode(GET_OPCODE(i)) == OpArgK, k+GETARG_Bx(i))
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   352
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   353
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   354
#define dojump(L,pc,i)	{(pc) += (i); luai_threadyield(L);}
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   355
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   356
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   357
#define Protect(x)	{ L->savedpc = pc; {x;}; base = L->base; }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   358
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   359
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   360
#define arith_op(op,tm) { \
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   361
        TValue *rb = RKB(i); \
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   362
        TValue *rc = RKC(i); \
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   363
        if (ttisnumber(rb) && ttisnumber(rc)) { \
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   364
          lua_Number nb = nvalue(rb), nc = nvalue(rc); \
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   365
          setnvalue(ra, op(nb, nc)); \
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   366
        } \
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   367
        else \
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   368
          Protect(Arith(L, ra, rb, rc, tm)); \
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   369
      }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   370
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   371
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   372
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   373
void luaV_execute (lua_State *L, int nexeccalls) {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   374
  LClosure *cl;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   375
  StkId base;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   376
  TValue *k;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   377
  const Instruction *pc;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   378
 reentry:  /* entry point */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   379
  lua_assert(isLua(L->ci));
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   380
  pc = L->savedpc;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   381
  cl = &clvalue(L->ci->func)->l;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   382
  base = L->base;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   383
  k = cl->p->k;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   384
  /* main loop of interpreter */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   385
  for (;;) {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   386
    const Instruction i = *pc++;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   387
    StkId ra;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   388
    if ((L->hookmask & (LUA_MASKLINE | LUA_MASKCOUNT)) &&
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   389
        (--L->hookcount == 0 || L->hookmask & LUA_MASKLINE)) {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   390
      traceexec(L, pc);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   391
      if (L->status == LUA_YIELD) {  /* did hook yield? */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   392
        L->savedpc = pc - 1;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   393
        return;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   394
      }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   395
      base = L->base;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   396
    }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   397
    /* warning!! several calls may realloc the stack and invalidate `ra' */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   398
    ra = RA(i);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   399
    lua_assert(base == L->base && L->base == L->ci->base);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   400
    lua_assert(base <= L->top && L->top <= L->stack + L->stacksize);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   401
    lua_assert(L->top == L->ci->top || luaG_checkopenop(i));
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   402
    switch (GET_OPCODE(i)) {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   403
      case OP_MOVE: {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   404
        setobjs2s(L, ra, RB(i));
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   405
        continue;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   406
      }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   407
      case OP_LOADK: {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   408
        setobj2s(L, ra, KBx(i));
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   409
        continue;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   410
      }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   411
      case OP_LOADBOOL: {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   412
        setbvalue(ra, GETARG_B(i));
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   413
        if (GETARG_C(i)) pc++;  /* skip next instruction (if C) */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   414
        continue;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   415
      }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   416
      case OP_LOADNIL: {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   417
        TValue *rb = RB(i);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   418
        do {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   419
          setnilvalue(rb--);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   420
        } while (rb >= ra);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   421
        continue;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   422
      }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   423
      case OP_GETUPVAL: {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   424
        int b = GETARG_B(i);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   425
        setobj2s(L, ra, cl->upvals[b]->v);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   426
        continue;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   427
      }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   428
      case OP_GETGLOBAL: {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   429
        TValue g;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   430
        TValue *rb = KBx(i);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   431
        sethvalue(L, &g, cl->env);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   432
        lua_assert(ttisstring(rb));
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   433
        Protect(luaV_gettable(L, &g, rb, ra));
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   434
        continue;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   435
      }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   436
      case OP_GETTABLE: {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   437
        Protect(luaV_gettable(L, RB(i), RKC(i), ra));
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   438
        continue;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   439
      }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   440
      case OP_SETGLOBAL: {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   441
        TValue g;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   442
        sethvalue(L, &g, cl->env);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   443
        lua_assert(ttisstring(KBx(i)));
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   444
        Protect(luaV_settable(L, &g, KBx(i), ra));
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   445
        continue;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   446
      }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   447
      case OP_SETUPVAL: {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   448
        UpVal *uv = cl->upvals[GETARG_B(i)];
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   449
        setobj(L, uv->v, ra);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   450
        luaC_barrier(L, uv, ra);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   451
        continue;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   452
      }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   453
      case OP_SETTABLE: {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   454
        Protect(luaV_settable(L, ra, RKB(i), RKC(i)));
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   455
        continue;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   456
      }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   457
      case OP_NEWTABLE: {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   458
        int b = GETARG_B(i);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   459
        int c = GETARG_C(i);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   460
        sethvalue(L, ra, luaH_new(L, luaO_fb2int(b), luaO_fb2int(c)));
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   461
        Protect(luaC_checkGC(L));
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   462
        continue;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   463
      }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   464
      case OP_SELF: {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   465
        StkId rb = RB(i);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   466
        setobjs2s(L, ra+1, rb);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   467
        Protect(luaV_gettable(L, rb, RKC(i), ra));
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   468
        continue;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   469
      }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   470
      case OP_ADD: {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   471
        arith_op(luai_numadd, TM_ADD);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   472
        continue;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   473
      }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   474
      case OP_SUB: {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   475
        arith_op(luai_numsub, TM_SUB);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   476
        continue;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   477
      }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   478
      case OP_MUL: {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   479
        arith_op(luai_nummul, TM_MUL);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   480
        continue;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   481
      }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   482
      case OP_DIV: {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   483
        arith_op(luai_numdiv, TM_DIV);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   484
        continue;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   485
      }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   486
      case OP_MOD: {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   487
        arith_op(luai_nummod, TM_MOD);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   488
        continue;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   489
      }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   490
      case OP_POW: {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   491
        arith_op(luai_numpow, TM_POW);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   492
        continue;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   493
      }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   494
      case OP_UNM: {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   495
        TValue *rb = RB(i);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   496
        if (ttisnumber(rb)) {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   497
          lua_Number nb = nvalue(rb);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   498
          setnvalue(ra, luai_numunm(nb));
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   499
        }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   500
        else {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   501
          Protect(Arith(L, ra, rb, rb, TM_UNM));
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   502
        }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   503
        continue;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   504
      }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   505
      case OP_NOT: {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   506
        int res = l_isfalse(RB(i));  /* next assignment may change this value */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   507
        setbvalue(ra, res);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   508
        continue;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   509
      }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   510
      case OP_LEN: {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   511
        const TValue *rb = RB(i);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   512
        switch (ttype(rb)) {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   513
          case LUA_TTABLE: {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   514
            setnvalue(ra, cast_num(luaH_getn(hvalue(rb))));
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   515
            break;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   516
          }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   517
          case LUA_TSTRING: {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   518
            setnvalue(ra, cast_num(tsvalue(rb)->len));
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   519
            break;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   520
          }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   521
          default: {  /* try metamethod */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   522
            Protect(
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   523
              if (!call_binTM(L, rb, luaO_nilobject, ra, TM_LEN))
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   524
                luaG_typeerror(L, rb, "get length of");
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   525
            )
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   526
          }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   527
        }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   528
        continue;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   529
      }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   530
      case OP_CONCAT: {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   531
        int b = GETARG_B(i);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   532
        int c = GETARG_C(i);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   533
        Protect(luaV_concat(L, c-b+1, c); luaC_checkGC(L));
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   534
        setobjs2s(L, RA(i), base+b);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   535
        continue;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   536
      }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   537
      case OP_JMP: {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   538
        dojump(L, pc, GETARG_sBx(i));
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   539
        continue;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   540
      }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   541
      case OP_EQ: {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   542
        TValue *rb = RKB(i);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   543
        TValue *rc = RKC(i);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   544
        Protect(
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   545
          if (equalobj(L, rb, rc) == GETARG_A(i))
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   546
            dojump(L, pc, GETARG_sBx(*pc));
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   547
        )
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   548
        pc++;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   549
        continue;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   550
      }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   551
      case OP_LT: {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   552
        Protect(
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   553
          if (luaV_lessthan(L, RKB(i), RKC(i)) == GETARG_A(i))
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   554
            dojump(L, pc, GETARG_sBx(*pc));
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   555
        )
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   556
        pc++;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   557
        continue;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   558
      }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   559
      case OP_LE: {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   560
        Protect(
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   561
          if (lessequal(L, RKB(i), RKC(i)) == GETARG_A(i))
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   562
            dojump(L, pc, GETARG_sBx(*pc));
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   563
        )
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   564
        pc++;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   565
        continue;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   566
      }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   567
      case OP_TEST: {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   568
        if (l_isfalse(ra) != GETARG_C(i))
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   569
          dojump(L, pc, GETARG_sBx(*pc));
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   570
        pc++;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   571
        continue;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   572
      }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   573
      case OP_TESTSET: {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   574
        TValue *rb = RB(i);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   575
        if (l_isfalse(rb) != GETARG_C(i)) {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   576
          setobjs2s(L, ra, rb);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   577
          dojump(L, pc, GETARG_sBx(*pc));
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   578
        }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   579
        pc++;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   580
        continue;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   581
      }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   582
      case OP_CALL: {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   583
        int b = GETARG_B(i);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   584
        int nresults = GETARG_C(i) - 1;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   585
        if (b != 0) L->top = ra+b;  /* else previous instruction set top */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   586
        L->savedpc = pc;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   587
        switch (luaD_precall(L, ra, nresults)) {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   588
          case PCRLUA: {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   589
            nexeccalls++;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   590
            goto reentry;  /* restart luaV_execute over new Lua function */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   591
          }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   592
          case PCRC: {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   593
            /* it was a C function (`precall' called it); adjust results */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   594
            if (nresults >= 0) L->top = L->ci->top;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   595
            base = L->base;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   596
            continue;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   597
          }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   598
          default: {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   599
            return;  /* yield */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   600
          }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   601
        }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   602
      }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   603
      case OP_TAILCALL: {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   604
        int b = GETARG_B(i);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   605
        if (b != 0) L->top = ra+b;  /* else previous instruction set top */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   606
        L->savedpc = pc;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   607
        lua_assert(GETARG_C(i) - 1 == LUA_MULTRET);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   608
        switch (luaD_precall(L, ra, LUA_MULTRET)) {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   609
          case PCRLUA: {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   610
            /* tail call: put new frame in place of previous one */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   611
            CallInfo *ci = L->ci - 1;  /* previous frame */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   612
            int aux;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   613
            StkId func = ci->func;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   614
            StkId pfunc = (ci+1)->func;  /* previous function index */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   615
            if (L->openupval) luaF_close(L, ci->base);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   616
            L->base = ci->base = ci->func + ((ci+1)->base - pfunc);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   617
            for (aux = 0; pfunc+aux < L->top; aux++)  /* move frame down */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   618
              setobjs2s(L, func+aux, pfunc+aux);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   619
            ci->top = L->top = func+aux;  /* correct top */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   620
            lua_assert(L->top == L->base + clvalue(func)->l.p->maxstacksize);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   621
            ci->savedpc = L->savedpc;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   622
            ci->tailcalls++;  /* one more call lost */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   623
            L->ci--;  /* remove new frame */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   624
            goto reentry;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   625
          }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   626
          case PCRC: {  /* it was a C function (`precall' called it) */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   627
            base = L->base;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   628
            continue;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   629
          }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   630
          default: {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   631
            return;  /* yield */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   632
          }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   633
        }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   634
      }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   635
      case OP_RETURN: {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   636
        int b = GETARG_B(i);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   637
        if (b != 0) L->top = ra+b-1;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   638
        if (L->openupval) luaF_close(L, base);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   639
        L->savedpc = pc;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   640
        b = luaD_poscall(L, ra);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   641
        if (--nexeccalls == 0)  /* was previous function running `here'? */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   642
          return;  /* no: return */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   643
        else {  /* yes: continue its execution */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   644
          if (b) L->top = L->ci->top;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   645
          lua_assert(isLua(L->ci));
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   646
          lua_assert(GET_OPCODE(*((L->ci)->savedpc - 1)) == OP_CALL);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   647
          goto reentry;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   648
        }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   649
      }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   650
      case OP_FORLOOP: {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   651
        lua_Number step = nvalue(ra+2);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   652
        lua_Number idx = luai_numadd(nvalue(ra), step); /* increment index */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   653
        lua_Number limit = nvalue(ra+1);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   654
        if (luai_numlt(0, step) ? luai_numle(idx, limit)
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   655
                                : luai_numle(limit, idx)) {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   656
          dojump(L, pc, GETARG_sBx(i));  /* jump back */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   657
          setnvalue(ra, idx);  /* update internal index... */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   658
          setnvalue(ra+3, idx);  /* ...and external index */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   659
        }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   660
        continue;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   661
      }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   662
      case OP_FORPREP: {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   663
        const TValue *init = ra;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   664
        const TValue *plimit = ra+1;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   665
        const TValue *pstep = ra+2;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   666
        L->savedpc = pc;  /* next steps may throw errors */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   667
        if (!tonumber(init, ra))
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   668
          luaG_runerror(L, LUA_QL("for") " initial value must be a number");
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   669
        else if (!tonumber(plimit, ra+1))
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   670
          luaG_runerror(L, LUA_QL("for") " limit must be a number");
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   671
        else if (!tonumber(pstep, ra+2))
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   672
          luaG_runerror(L, LUA_QL("for") " step must be a number");
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   673
        setnvalue(ra, luai_numsub(nvalue(ra), nvalue(pstep)));
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   674
        dojump(L, pc, GETARG_sBx(i));
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   675
        continue;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   676
      }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   677
      case OP_TFORLOOP: {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   678
        StkId cb = ra + 3;  /* call base */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   679
        setobjs2s(L, cb+2, ra+2);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   680
        setobjs2s(L, cb+1, ra+1);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   681
        setobjs2s(L, cb, ra);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   682
        L->top = cb+3;  /* func. + 2 args (state and index) */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   683
        Protect(luaD_call(L, cb, GETARG_C(i)));
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   684
        L->top = L->ci->top;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   685
        cb = RA(i) + 3;  /* previous call may change the stack */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   686
        if (!ttisnil(cb)) {  /* continue loop? */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   687
          setobjs2s(L, cb-1, cb);  /* save control variable */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   688
          dojump(L, pc, GETARG_sBx(*pc));  /* jump back */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   689
        }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   690
        pc++;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   691
        continue;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   692
      }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   693
      case OP_SETLIST: {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   694
        int n = GETARG_B(i);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   695
        int c = GETARG_C(i);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   696
        int last;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   697
        Table *h;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   698
        if (n == 0) {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   699
          n = cast_int(L->top - ra) - 1;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   700
          L->top = L->ci->top;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   701
        }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   702
        if (c == 0) c = cast_int(*pc++);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   703
        runtime_check(L, ttistable(ra));
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   704
        h = hvalue(ra);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   705
        last = ((c-1)*LFIELDS_PER_FLUSH) + n;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   706
        if (last > h->sizearray)  /* needs more space? */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   707
          luaH_resizearray(L, h, last);  /* pre-alloc it at once */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   708
        for (; n > 0; n--) {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   709
          TValue *val = ra+n;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   710
          setobj2t(L, luaH_setnum(L, h, last--), val);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   711
          luaC_barriert(L, h, val);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   712
        }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   713
        continue;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   714
      }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   715
      case OP_CLOSE: {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   716
        luaF_close(L, ra);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   717
        continue;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   718
      }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   719
      case OP_CLOSURE: {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   720
        Proto *p;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   721
        Closure *ncl;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   722
        int nup, j;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   723
        p = cl->p->p[GETARG_Bx(i)];
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   724
        nup = p->nups;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   725
        ncl = luaF_newLclosure(L, nup, cl->env);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   726
        ncl->l.p = p;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   727
        for (j=0; j<nup; j++, pc++) {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   728
          if (GET_OPCODE(*pc) == OP_GETUPVAL)
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   729
            ncl->l.upvals[j] = cl->upvals[GETARG_B(*pc)];
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   730
          else {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   731
            lua_assert(GET_OPCODE(*pc) == OP_MOVE);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   732
            ncl->l.upvals[j] = luaF_findupval(L, base + GETARG_B(*pc));
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   733
          }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   734
        }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   735
        setclvalue(L, ra, ncl);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   736
        Protect(luaC_checkGC(L));
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   737
        continue;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   738
      }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   739
      case OP_VARARG: {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   740
        int b = GETARG_B(i) - 1;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   741
        int j;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   742
        CallInfo *ci = L->ci;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   743
        int n = cast_int(ci->base - ci->func) - cl->p->numparams - 1;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   744
        if (b == LUA_MULTRET) {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   745
          Protect(luaD_checkstack(L, n));
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   746
          ra = RA(i);  /* previous call may change the stack */
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   747
          b = n;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   748
          L->top = ra + n;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   749
        }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   750
        for (j = 0; j < b; j++) {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   751
          if (j < n) {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   752
            setobjs2s(L, ra + j, ci->base - n + j);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   753
          }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   754
          else {
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   755
            setnilvalue(ra + j);
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   756
          }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   757
        }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   758
        continue;
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   759
      }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   760
    }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   761
  }
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   762
}
0a24853de796 add liblua to sources for macosx
koda
parents:
diff changeset
   763