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authorhut <hut@lavabit.com>2010-05-16 16:28:42 +0200
committerhut <hut@lavabit.com>2010-05-16 16:28:42 +0200
commitef0157ff37404cf757f57711c62bb352a2971fa6 (patch)
tree36fb3abf2cafafa720a9a336195cb3c27e625378 /doc/pydoc/ranger.fsobject.directory.html
parentb6371096afef3353001c039d0c17864d2dd4f6e6 (diff)
downloadranger-ef0157ff37404cf757f57711c62bb352a2971fa6.tar.gz
updated pydoc
Diffstat (limited to 'doc/pydoc/ranger.fsobject.directory.html')
-rw-r--r--doc/pydoc/ranger.fsobject.directory.html96


1 files changed, 14 insertions, 82 deletions
diff --git a/doc/pydoc/ranger.fsobject.directory.html b/doc/pydoc/ranger.fsobject.directory.html
index 79dfc957..77790809 100644
--- a/doc/pydoc/ranger.fsobject.directory.html
+++ b/doc/pydoc/ranger.fsobject.directory.html
@@ -1,6 +1,6 @@
-
 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
 <html><head><title>Python: module ranger.fsobject.directory</title>
+<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
 </head><body bgcolor="#f0f0f8">
 
 <table width="100%" cellspacing=0 cellpadding=2 border=0 summary="heading">
@@ -8,7 +8,7 @@
 <td valign=bottom>&nbsp;<br>
 <font color="#ffffff" face="helvetica, arial">&nbsp;<br><big><big><strong><a href="ranger.html"><font color="#ffffff">ranger</font></a>.<a href="ranger.fsobject.html"><font color="#ffffff">fsobject</font></a>.directory</strong></big></big></font></td
 ><td align=right valign=bottom
-><font color="#ffffff" face="helvetica, arial"><a href=".">index</a><br><a href="file:/home/hut/ranger/ranger/fsobject/directory.py">/home/hut/ranger/ranger/fsobject/directory.py</a></font></td></tr></table>
+><font color="#ffffff" face="helvetica, arial"><a href=".">index</a><br><a href="file:/home/hut/code/ranger/ranger/fsobject/directory.py">/home/hut/code/ranger/ranger/fsobject/directory.py</a></font></td></tr></table>
     <p><tt>#&nbsp;Copyright&nbsp;(C)&nbsp;2009,&nbsp;2010&nbsp;&nbsp;Roman&nbsp;Zimbelmann&nbsp;&lt;romanz@lavabit.com&gt;<br>
 #<br>
 #&nbsp;This&nbsp;program&nbsp;is&nbsp;free&nbsp;software:&nbsp;you&nbsp;can&nbsp;redistribute&nbsp;it&nbsp;and/or&nbsp;modify<br>
@@ -32,7 +32,8 @@
 <tr><td bgcolor="#aa55cc"><tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</tt></td><td>&nbsp;</td>
 <td width="100%"><table width="100%" summary="list"><tr><td width="25%" valign=top><a href="os.html">os</a><br>
 </td><td width="25%" valign=top><a href="ranger.html">ranger</a><br>
-</td><td width="25%" valign=top></td><td width="25%" valign=top></td></tr></table></td></tr></table><p>
+</td><td width="25%" valign=top><a href="stat.html">stat</a><br>
+</td><td width="25%" valign=top></td></tr></table></td></tr></table><p>
 <table width="100%" cellspacing=0 cellpadding=2 border=0 summary="section">
 <tr bgcolor="#ee77aa">
 <td colspan=3 valign=bottom>&nbsp;<br>
@@ -40,13 +41,7 @@
     
 <tr><td bgcolor="#ee77aa"><tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</tt></td><td>&nbsp;</td>
 <td width="100%"><dl>
-<dt><font face="helvetica, arial"><a href="exceptions.html#Exception">exceptions.Exception</a>(<a href="exceptions.html#BaseException">exceptions.BaseException</a>)
-</font></dt><dd>
-<dl>
-<dt><font face="helvetica, arial"><a href="ranger.fsobject.directory.html#NoDirectoryGiven">NoDirectoryGiven</a>
-</font></dt></dl>
-</dd>
-<dt><font face="helvetica, arial"><a href="ranger.ext.accumulator.html#Accumulator">ranger.ext.accumulator.Accumulator</a>(<a href="__builtin__.html#object">__builtin__.object</a>)
+<dt><font face="helvetica, arial"><a href="ranger.ext.accumulator.html#Accumulator">ranger.ext.accumulator.Accumulator</a>(<a href="builtins.html#object">builtins.object</a>)
 </font></dt><dd>
 <dl>
 <dt><font face="helvetica, arial"><a href="ranger.fsobject.directory.html#Directory">Directory</a>(<a href="ranger.fsobject.fsobject.html#FileSystemObject">ranger.fsobject.fsobject.FileSystemObject</a>, <a href="ranger.ext.accumulator.html#Accumulator">ranger.ext.accumulator.Accumulator</a>, <a href="ranger.shared.settings.html#SettingsAware">ranger.shared.settings.SettingsAware</a>)
@@ -58,7 +53,7 @@
 <dt><font face="helvetica, arial"><a href="ranger.fsobject.directory.html#Directory">Directory</a>(<a href="ranger.fsobject.fsobject.html#FileSystemObject">ranger.fsobject.fsobject.FileSystemObject</a>, <a href="ranger.ext.accumulator.html#Accumulator">ranger.ext.accumulator.Accumulator</a>, <a href="ranger.shared.settings.html#SettingsAware">ranger.shared.settings.SettingsAware</a>)
 </font></dt></dl>
 </dd>
-<dt><font face="helvetica, arial"><a href="ranger.shared.settings.html#SettingsAware">ranger.shared.settings.SettingsAware</a>(<a href="__builtin__.html#object">__builtin__.object</a>)
+<dt><font face="helvetica, arial"><a href="ranger.shared.settings.html#SettingsAware">ranger.shared.settings.SettingsAware</a>(<a href="builtins.html#object">builtins.object</a>)
 </font></dt><dd>
 <dl>
 <dt><font face="helvetica, arial"><a href="ranger.fsobject.directory.html#Directory">Directory</a>(<a href="ranger.fsobject.fsobject.html#FileSystemObject">ranger.fsobject.fsobject.FileSystemObject</a>, <a href="ranger.ext.accumulator.html#Accumulator">ranger.ext.accumulator.Accumulator</a>, <a href="ranger.shared.settings.html#SettingsAware">ranger.shared.settings.SettingsAware</a>)
@@ -80,7 +75,7 @@
 <dd><a href="ranger.shared.html#Awareness">ranger.shared.Awareness</a></dd>
 <dd><a href="ranger.ext.accumulator.html#Accumulator">ranger.ext.accumulator.Accumulator</a></dd>
 <dd><a href="ranger.shared.settings.html#SettingsAware">ranger.shared.settings.SettingsAware</a></dd>
-<dd><a href="__builtin__.html#object">__builtin__.object</a></dd>
+<dd><a href="builtins.html#object">builtins.object</a></dd>
 </dl>
 <hr>
 Methods defined here:<br>
@@ -90,7 +85,7 @@ Methods defined here:<br>
 
 <dl><dt><a name="Directory-__hash__"><strong>__hash__</strong></a>(self)</dt></dl>
 
-<dl><dt><a name="Directory-__init__"><strong>__init__</strong></a>(self, path)</dt></dl>
+<dl><dt><a name="Directory-__init__"><strong>__init__</strong></a>(self, path, **kw)</dt></dl>
 
 <dl><dt><a name="Directory-__len__"><strong>__len__</strong></a>(self)</dt><dd><tt>The&nbsp;number&nbsp;of&nbsp;containing&nbsp;files</tt></dd></dl>
 
@@ -189,8 +184,6 @@ Methods inherited from <a href="ranger.fsobject.fsobject.html#FileSystemObject">
 
 <dl><dt><a name="Directory-__str__"><strong>__str__</strong></a>(self)</dt><dd><tt>returns&nbsp;a&nbsp;string&nbsp;containing&nbsp;the&nbsp;absolute&nbsp;path</tt></dd></dl>
 
-<dl><dt><a name="Directory-determine_infostring"><strong>determine_infostring</strong></a>(self)</dt></dl>
-
 <dl><dt><a name="Directory-get_description"><strong>get_description</strong></a>(self)</dt></dl>
 
 <dl><dt><a name="Directory-get_permission_string"><strong>get_permission_string</strong></a>(self)</dt></dl>
@@ -205,8 +198,6 @@ filesystem&nbsp;and&nbsp;caches&nbsp;it&nbsp;for&nbsp;later&nbsp;use</tt></dd></
 <dl><dt><a name="Directory-load_if_outdated"><strong>load_if_outdated</strong></a>(self)</dt><dd><tt>Calls&nbsp;<a href="#Directory-load">load</a>()&nbsp;if&nbsp;the&nbsp;currently&nbsp;cached&nbsp;information&nbsp;is&nbsp;outdated<br>
 or&nbsp;nonexistant.</tt></dd></dl>
 
-<dl><dt><a name="Directory-load_once"><strong>load_once</strong></a>(self)</dt><dd><tt>calls&nbsp;<a href="#Directory-load">load</a>()&nbsp;if&nbsp;it&nbsp;has&nbsp;not&nbsp;been&nbsp;called&nbsp;at&nbsp;least&nbsp;once&nbsp;yet</tt></dd></dl>
-
 <dl><dt><a name="Directory-mark"><strong>mark</strong></a>(self, boolean)</dt></dl>
 
 <dl><dt><a name="Directory-set_mimetype"><strong>set_mimetype</strong></a>(self)</dt><dd><tt>assign&nbsp;attributes&nbsp;such&nbsp;as&nbsp;self.<strong>video</strong>&nbsp;according&nbsp;to&nbsp;the&nbsp;mimetype</tt></dd></dl>
@@ -217,6 +208,10 @@ or&nbsp;nonexistant.</tt></dd></dl>
 Data descriptors inherited from <a href="ranger.fsobject.fsobject.html#FileSystemObject">ranger.fsobject.fsobject.FileSystemObject</a>:<br>
 <dl><dt><strong>filetype</strong></dt>
 </dl>
+<dl><dt><strong>mimetype</strong></dt>
+</dl>
+<dl><dt><strong>mimetype_tuple</strong></dt>
+</dl>
 <dl><dt><strong>shell_escaped_basename</strong></dt>
 </dl>
 <hr>
@@ -263,14 +258,10 @@ Data and other attributes inherited from <a href="ranger.fsobject.fsobject.html#
 
 <dl><dt><strong>media</strong> = False</dl>
 
-<dl><dt><strong>mimetype_tuple</strong> = ()</dl>
-
 <dl><dt><strong>path</strong> = None</dl>
 
 <dl><dt><strong>permissions</strong> = None</dl>
 
-<dl><dt><strong>readlink</strong> = None</dl>
-
 <dl><dt><strong>runnable</strong> = False</dl>
 
 <dl><dt><strong>size</strong> = 0</dl>
@@ -281,8 +272,6 @@ Data and other attributes inherited from <a href="ranger.fsobject.fsobject.html#
 
 <dl><dt><strong>tagged</strong> = False</dl>
 
-<dl><dt><strong>type</strong> = 'unknown'</dl>
-
 <dl><dt><strong>video</strong> = False</dl>
 
 <hr>
@@ -315,64 +304,6 @@ Methods inherited from <a href="ranger.ext.accumulator.html#Accumulator">ranger.
 Data and other attributes inherited from <a href="ranger.shared.settings.html#SettingsAware">ranger.shared.settings.SettingsAware</a>:<br>
 <dl><dt><strong>settings</strong> = {}</dl>
 
-</td></tr></table> <p>
-<table width="100%" cellspacing=0 cellpadding=2 border=0 summary="section">
-<tr bgcolor="#ffc8d8">
-<td colspan=3 valign=bottom>&nbsp;<br>
-<font color="#000000" face="helvetica, arial"><a name="NoDirectoryGiven">class <strong>NoDirectoryGiven</strong></a>(<a href="exceptions.html#Exception">exceptions.Exception</a>)</font></td></tr>
-    
-<tr><td bgcolor="#ffc8d8"><tt>&nbsp;&nbsp;&nbsp;</tt></td><td>&nbsp;</td>
-<td width="100%"><dl><dt>Method resolution order:</dt>
-<dd><a href="ranger.fsobject.directory.html#NoDirectoryGiven">NoDirectoryGiven</a></dd>
-<dd><a href="exceptions.html#Exception">exceptions.Exception</a></dd>
-<dd><a href="exceptions.html#BaseException">exceptions.BaseException</a></dd>
-<dd><a href="__builtin__.html#object">__builtin__.object</a></dd>
-</dl>
-<hr>
-Data descriptors defined here:<br>
-<dl><dt><strong>__weakref__</strong></dt>
-<dd><tt>list&nbsp;of&nbsp;weak&nbsp;references&nbsp;to&nbsp;the&nbsp;object&nbsp;(if&nbsp;defined)</tt></dd>
-</dl>
-<hr>
-Methods inherited from <a href="exceptions.html#Exception">exceptions.Exception</a>:<br>
-<dl><dt><a name="NoDirectoryGiven-__init__"><strong>__init__</strong></a>(...)</dt><dd><tt>x.<a href="#NoDirectoryGiven-__init__">__init__</a>(...)&nbsp;initializes&nbsp;x;&nbsp;see&nbsp;x.__class__.__doc__&nbsp;for&nbsp;signature</tt></dd></dl>
-
-<hr>
-Data and other attributes inherited from <a href="exceptions.html#Exception">exceptions.Exception</a>:<br>
-<dl><dt><strong>__new__</strong> = &lt;built-in method __new__ of type object&gt;<dd><tt>T.<a href="#NoDirectoryGiven-__new__">__new__</a>(S,&nbsp;...)&nbsp;-&gt;&nbsp;a&nbsp;new&nbsp;object&nbsp;with&nbsp;type&nbsp;S,&nbsp;a&nbsp;subtype&nbsp;of&nbsp;T</tt></dl>
-
-<hr>
-Methods inherited from <a href="exceptions.html#BaseException">exceptions.BaseException</a>:<br>
-<dl><dt><a name="NoDirectoryGiven-__delattr__"><strong>__delattr__</strong></a>(...)</dt><dd><tt>x.<a href="#NoDirectoryGiven-__delattr__">__delattr__</a>('name')&nbsp;&lt;==&gt;&nbsp;del&nbsp;x.name</tt></dd></dl>
-
-<dl><dt><a name="NoDirectoryGiven-__getattribute__"><strong>__getattribute__</strong></a>(...)</dt><dd><tt>x.<a href="#NoDirectoryGiven-__getattribute__">__getattribute__</a>('name')&nbsp;&lt;==&gt;&nbsp;x.name</tt></dd></dl>
-
-<dl><dt><a name="NoDirectoryGiven-__getitem__"><strong>__getitem__</strong></a>(...)</dt><dd><tt>x.<a href="#NoDirectoryGiven-__getitem__">__getitem__</a>(y)&nbsp;&lt;==&gt;&nbsp;x[y]</tt></dd></dl>
-
-<dl><dt><a name="NoDirectoryGiven-__getslice__"><strong>__getslice__</strong></a>(...)</dt><dd><tt>x.<a href="#NoDirectoryGiven-__getslice__">__getslice__</a>(i,&nbsp;j)&nbsp;&lt;==&gt;&nbsp;x[i:j]<br>
-&nbsp;<br>
-Use&nbsp;of&nbsp;negative&nbsp;indices&nbsp;is&nbsp;not&nbsp;supported.</tt></dd></dl>
-
-<dl><dt><a name="NoDirectoryGiven-__reduce__"><strong>__reduce__</strong></a>(...)</dt></dl>
-
-<dl><dt><a name="NoDirectoryGiven-__repr__"><strong>__repr__</strong></a>(...)</dt><dd><tt>x.<a href="#NoDirectoryGiven-__repr__">__repr__</a>()&nbsp;&lt;==&gt;&nbsp;repr(x)</tt></dd></dl>
-
-<dl><dt><a name="NoDirectoryGiven-__setattr__"><strong>__setattr__</strong></a>(...)</dt><dd><tt>x.<a href="#NoDirectoryGiven-__setattr__">__setattr__</a>('name',&nbsp;value)&nbsp;&lt;==&gt;&nbsp;x.name&nbsp;=&nbsp;value</tt></dd></dl>
-
-<dl><dt><a name="NoDirectoryGiven-__setstate__"><strong>__setstate__</strong></a>(...)</dt></dl>
-
-<dl><dt><a name="NoDirectoryGiven-__str__"><strong>__str__</strong></a>(...)</dt><dd><tt>x.<a href="#NoDirectoryGiven-__str__">__str__</a>()&nbsp;&lt;==&gt;&nbsp;str(x)</tt></dd></dl>
-
-<dl><dt><a name="NoDirectoryGiven-__unicode__"><strong>__unicode__</strong></a>(...)</dt></dl>
-
-<hr>
-Data descriptors inherited from <a href="exceptions.html#BaseException">exceptions.BaseException</a>:<br>
-<dl><dt><strong>__dict__</strong></dt>
-</dl>
-<dl><dt><strong>args</strong></dt>
-</dl>
-<dl><dt><strong>message</strong></dt>
-</dl>
 </td></tr></table></td></tr></table><p>
 <table width="100%" cellspacing=0 cellpadding=2 border=0 summary="section">
 <tr bgcolor="#eeaa77">
@@ -380,7 +311,8 @@ Data descriptors inherited from <a href="exceptions.html#BaseException">exceptio
 <font color="#ffffff" face="helvetica, arial"><big><strong>Functions</strong></big></font></td></tr>
     
 <tr><td bgcolor="#eeaa77"><tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</tt></td><td>&nbsp;</td>
-<td width="100%"><dl><dt><a name="-sort_by_basename"><strong>sort_by_basename</strong></a>(path)</dt><dd><tt>returns&nbsp;path.basename&nbsp;(for&nbsp;sorting)</tt></dd></dl>
+<td width="100%"><dl><dt><a name="-accept_file"><strong>accept_file</strong></a>(fname, hidden_filter, name_filter)</dt></dl>
+ <dl><dt><a name="-sort_by_basename"><strong>sort_by_basename</strong></a>(path)</dt><dd><tt>returns&nbsp;path.basename&nbsp;(for&nbsp;sorting)</tt></dd></dl>
  <dl><dt><a name="-sort_by_basename_icase"><strong>sort_by_basename_icase</strong></a>(path)</dt><dd><tt>returns&nbsp;case-insensitive&nbsp;path.basename&nbsp;(for&nbsp;sorting)</tt></dd></dl>
  <dl><dt><a name="-sort_by_directory"><strong>sort_by_directory</strong></a>(path)</dt><dd><tt>returns&nbsp;0&nbsp;if&nbsp;path&nbsp;is&nbsp;a&nbsp;directory,&nbsp;otherwise&nbsp;1&nbsp;(for&nbsp;sorting)</tt></dd></dl>
  <dl><dt><a name="-time"><strong>time</strong></a>(...)</dt><dd><tt><a href="#-time">time</a>()&nbsp;-&gt;&nbsp;floating&nbsp;point&nbsp;number<br>

 

generated by cgit-pink 1.4.1-2-gfad0 (git 2.36.2.497.gbbea4dcf42) at 2024-08-22 23:19:01 +0000


 


 Literal.Number.Bin */
.highlight .mf { color: #0000DD; font-weight: bold } /* Literal.Number.Float */
.highlight .mh { color: #0000DD; font-weight: bold } /* Literal.Number.Hex */
.highlight .mi { color: #0000DD; font-weight: bold } /* Literal.Number.Integer */
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.highlight .sc { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Char */
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.highlight .sd { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Doc */
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.highlight .se { color: #0044dd; background-color: #fff0f0 } /* Literal.String.Escape */
.highlight .sh { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Heredoc */
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/*
** $Id: lvm.c,v 2.63.1.5 2011/08/17 20:43:11 roberto Exp $
** Lua virtual machine
** See Copyright Notice in lua.h
*/


#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#define lvm_c
#define LUA_CORE

#include "lua.h"

#include "ldebug.h"
#include "ldo.h"
#include "lfunc.h"
#include "lgc.h"
#include "lobject.h"
#include "lopcodes.h"
#include "lstate.h"
#include "lstring.h"
#include "ltable.h"
#include "ltm.h"
#include "lvm.h"



/* limit for table tag-method chains (to avoid loops) */
#define MAXTAGLOOP	100


const TValue *luaV_tonumber (const TValue *obj, TValue *n) {
  lua_Number num;
  if (ttisnumber(obj)) return obj;
  if (ttisstring(obj) && luaO_str2d(svalue(obj), &num)) {
    setnvalue(n, num);
    return n;
  }
  else
    return NULL;
}


int luaV_tostring (lua_State *L, StkId obj) {
  if (!ttisnumber(obj))
    return 0;
  else {
    char s[LUAI_MAXNUMBER2STR];
    lua_Number n = nvalue(obj);
    lua_number2str(s, n);
    setsvalue2s(L, obj, luaS_new(L, s));
    return 1;
  }
}


static void traceexec (lua_State *L, const Instruction *pc) {
  lu_byte mask = L->hookmask;
  const Instruction *oldpc = L->savedpc;
  L->savedpc = pc;
  if ((mask & LUA_MASKCOUNT) && L->hookcount == 0) {
    resethookcount(L);
    luaD_callhook(L, LUA_HOOKCOUNT, -1);
  }
  if (mask & LUA_MASKLINE) {
    Proto *p = ci_func(L->ci)->l.p;
    int npc = pcRel(pc, p);
    int newline = getline(p, npc);
    /* call linehook when enter a new function, when jump back (loop),
       or when enter a new line */
    if (npc == 0 || pc <= oldpc || newline != getline(p, pcRel(oldpc, p)))
      luaD_callhook(L, LUA_HOOKLINE, newline);
  }
}


static void callTMres (lua_State *L, StkId res, const TValue *f,
                        const TValue *p1, const TValue *p2) {
  ptrdiff_t result = savestack(L, res);
  setobj2s(L, L->top, f);  /* push function */
  setobj2s(L, L->top+1, p1);  /* 1st argument */
  setobj2s(L, L->top+2, p2);  /* 2nd argument */
  luaD_checkstack(L, 3);
  L->top += 3;
  luaD_call(L, L->top - 3, 1);
  res = restorestack(L, result);
  L->top--;
  setobjs2s(L, res, L->top);
}



static void callTM (lua_State *L, const TValue *f, const TValue *p1,
                    const TValue *p2, const TValue *p3) {
  setobj2s(L, L->top, f);  /* push function */
  setobj2s(L, L->top+1, p1);  /* 1st argument */
  setobj2s(L, L->top+2, p2);  /* 2nd argument */
  setobj2s(L, L->top+3, p3);  /* 3th argument */
  luaD_checkstack(L, 4);
  L->top += 4;
  luaD_call(L, L->top - 4, 0);
}


void luaV_gettable (lua_State *L, const TValue *t, TValue *key, StkId val) {
  int loop;
  for (loop = 0; loop < MAXTAGLOOP; loop++) {
    const TValue *tm;
    if (ttistable(t)) {  /* `t' is a table? */
      Table *h = hvalue(t);
      const TValue *res = luaH_get(h, key); /* do a primitive get */
      if (!ttisnil(res) ||  /* result is no nil? */
          (tm = fasttm(L, h->metatable, TM_INDEX)) == NULL) { /* or no TM? */
        setobj2s(L, val, res);
        return;
      }
      /* else will try the tag method */
    }
    else if (ttisnil(tm = luaT_gettmbyobj(L, t, TM_INDEX)))
      luaG_typeerror(L, t, "index");
    if (ttisfunction(tm)) {
      callTMres(L, val, tm, t, key);
      return;
    }
    t = tm;  /* else repeat with `tm' */ 
  }
  luaG_runerror(L, "loop in gettable");
}


void luaV_settable (lua_State *L, const TValue *t, TValue *key, StkId val) {
  int loop;
  TValue temp;
  for (loop = 0; loop < MAXTAGLOOP; loop++) {
    const TValue *tm;
    if (ttistable(t)) {  /* `t' is a table? */
      Table *h = hvalue(t);
      TValue *oldval = luaH_set(L, h, key); /* do a primitive set */
      if (!ttisnil(oldval) ||  /* result is no nil? */
          (tm = fasttm(L, h->metatable, TM_NEWINDEX)) == NULL) { /* or no TM? */
        setobj2t(L, oldval, val);
        h->flags = 0;
        luaC_barriert(L, h, val);
        return;
      }
      /* else will try the tag method */
    }
    else if (ttisnil(tm = luaT_gettmbyobj(L, t, TM_NEWINDEX)))
      luaG_typeerror(L, t, "index");
    if (ttisfunction(tm)) {
      callTM(L, tm, t, key, val);
      return;
    }
    /* else repeat with `tm' */
    setobj(L, &temp, tm);  /* avoid pointing inside table (may rehash) */
    t = &temp;
  }
  luaG_runerror(L, "loop in settable");
}


static int call_binTM (lua_State *L, const TValue *p1, const TValue *p2,
                       StkId res, TMS event) {
  const TValue *tm = luaT_gettmbyobj(L, p1, event);  /* try first operand */
  if (ttisnil(tm))
    tm = luaT_gettmbyobj(L, p2, event);  /* try second operand */
  if (ttisnil(tm)) return 0;
  callTMres(L, res, tm, p1, p2);
  return 1;
}


static const TValue *get_compTM (lua_State *L, Table *mt1, Table *mt2,
                                  TMS event) {
  const TValue *tm1 = fasttm(L, mt1, event);
  const TValue *tm2;
  if (tm1 == NULL) return NULL;  /* no metamethod */
  if (mt1 == mt2) return tm1;  /* same metatables => same metamethods */
  tm2 = fasttm(L, mt2, event);
  if (tm2 == NULL) return NULL;  /* no metamethod */
  if (luaO_rawequalObj(tm1, tm2))  /* same metamethods? */
    return tm1;
  return NULL;
}


static int call_orderTM (lua_State *L, const TValue *p1, const TValue *p2,
                         TMS event) {
  const TValue *tm1 = luaT_gettmbyobj(L, p1, event);
  const TValue *tm2;
  if (ttisnil(tm1)) return -1;  /* no metamethod? */
  tm2 = luaT_gettmbyobj(L, p2, event);
  if (!luaO_rawequalObj(tm1, tm2))  /* different metamethods? */
    return -1;
  callTMres(L, L->top, tm1, p1, p2);
  return !l_isfalse(L->top);
}


static int l_strcmp (const TString *ls, const TString *rs) {
  const char *l = getstr(ls);
  size_t ll = ls->tsv.len;
  const char *r = getstr(rs);
  size_t lr = rs->tsv.len;
  for (;;) {
    int temp = strcoll(l, r);
    if (temp != 0) return temp;
    else {  /* strings are equal up to a `\0' */
      size_t len = strlen(l);  /* index of first `\0' in both strings */
      if (len == lr)  /* r is finished? */
        return (len == ll) ? 0 : 1;
      else if (len == ll)  /* l is finished? */
        return -1;  /* l is smaller than r (because r is not finished) */
      /* both strings longer than `len'; go on comparing (after the `\0') */
      len++;
      l += len; ll -= len; r += len; lr -= len;
    }
  }
}


int luaV_lessthan (lua_State *L, const TValue *l, const TValue *r) {
  int res;
  if (ttype(l) != ttype(r))
    return luaG_ordererror(L, l, r);
  else if (ttisnumber(l))
    return luai_numlt(nvalue(l), nvalue(r));
  else if (ttisstring(l))
    return l_strcmp(rawtsvalue(l), rawtsvalue(r)) < 0;
  else if ((res = call_orderTM(L, l, r, TM_LT)) != -1)
    return res;
  return luaG_ordererror(L, l, r);
}


static int lessequal (lua_State *L, const TValue *l, const TValue *r) {
  int res;
  if (ttype(l) != ttype(r))
    return luaG_ordererror(L, l, r);
  else if (ttisnumber(l))
    return luai_numle(nvalue(l), nvalue(r));
  else if (ttisstring(l))
    return l_strcmp(rawtsvalue(l), rawtsvalue(r)) <= 0;
  else if ((res = call_orderTM(L, l, r, TM_LE)) != -1)  /* first try `le' */
    return res;
  else if ((res = call_orderTM(L, r, l, TM_LT)) != -1)  /* else try `lt' */
    return !res;
  return luaG_ordererror(L, l, r);
}


int luaV_equalval (lua_State *L, const TValue *t1, const TValue *t2) {
  const TValue *tm;
  lua_assert(ttype(t1) == ttype(t2));
  switch (ttype(t1)) {
    case LUA_TNIL: return 1;
    case LUA_TNUMBER: return luai_numeq(nvalue(t1), nvalue(t2));
    case LUA_TBOOLEAN: return bvalue(t1) == bvalue(t2);  /* true must be 1 !! */
    case LUA_TLIGHTUSERDATA: return pvalue(t1) == pvalue(t2);
    case LUA_TUSERDATA: {
      if (uvalue(t1) == uvalue(t2)) return 1;
      tm = get_compTM(L, uvalue(t1)->metatable, uvalue(t2)->metatable,
                         TM_EQ);
      break;  /* will try TM */
    }
    case LUA_TTABLE: {
      if (hvalue(t1) == hvalue(t2)) return 1;
      tm = get_compTM(L, hvalue(t1)->metatable, hvalue(t2)->metatable, TM_EQ);
      break;  /* will try TM */
    }
    default: return gcvalue(t1) == gcvalue(t2);
  }
  if (tm == NULL) return 0;  /* no TM? */
  callTMres(L, L->top, tm, t1, t2);  /* call TM */
  return !l_isfalse(L->top);
}


void luaV_concat (lua_State *L, int total, int last) {
  do {
    StkId top = L->base + last + 1;
    int n = 2;  /* number of elements handled in this pass (at least 2) */
    if (!(ttisstring(top-2) || ttisnumber(top-2)) || !tostring(L, top-1)) {
      if (!call_binTM(L, top-2, top-1, top-2, TM_CONCAT))
        luaG_concaterror(L, top-2, top-1);
    } else if (tsvalue(top-1)->len == 0)  /* second op is empty? */
      (void)tostring(L, top - 2);  /* result is first op (as string) */
    else {
      /* at least two string values; get as many as possible */
      size_t tl = tsvalue(top-1)->len;
      char *buffer;
      int i;
      /* collect total length */
      for (n = 1; n < total && tostring(L, top-n-1); n++) {
        size_t l = tsvalue(top-n-1)->len;
        if (l >= MAX_SIZET - tl) luaG_runerror(L, "string length overflow");
        tl += l;
      }
      buffer = luaZ_openspace(L, &G(L)->buff, tl);
      tl = 0;
      for (i=n; i>0; i--) {  /* concat all strings */
        size_t l = tsvalue(top-i)->len;
        memcpy(buffer+tl, svalue(top-i), l);
        tl += l;
      }
      setsvalue2s(L, top-n, luaS_newlstr(L, buffer, tl));
    }
    total -= n-1;  /* got `n' strings to create 1 new */
    last -= n-1;
  } while (total > 1);  /* repeat until only 1 result left */
}


static void Arith (lua_State *L, StkId ra, const TValue *rb,
                   const TValue *rc, TMS op) {
  TValue tempb, tempc;
  const TValue *b, *c;
  if ((b = luaV_tonumber(rb, &tempb)) != NULL &&
      (c = luaV_tonumber(rc, &tempc)) != NULL) {
    lua_Number nb = nvalue(b), nc = nvalue(c);
    switch (op) {
      case TM_ADD: setnvalue(ra, luai_numadd(nb, nc)); break;
      case TM_SUB: setnvalue(ra, luai_numsub(nb, nc)); break;
      case TM_MUL: setnvalue(ra, luai_nummul(nb, nc)); break;
      case TM_DIV: setnvalue(ra, luai_numdiv(nb, nc)); break;
      case TM_MOD: setnvalue(ra, luai_nummod(nb, nc)); break;
      case TM_POW: setnvalue(ra, luai_numpow(nb, nc)); break;
      case TM_UNM: setnvalue(ra, luai_numunm(nb)); break;
      default: lua_assert(0); break;
    }
  }
  else if (!call_binTM(L, rb, rc, ra, op))
    luaG_aritherror(L, rb, rc);
}



/*
** some macros for common tasks in `luaV_execute'
*/

#define runtime_check(L, c)	{ if (!(c)) break; }

#define RA(i)	(base+GETARG_A(i))
/* to be used after possible stack reallocation */
#define RB(i)	check_exp(getBMode(GET_OPCODE(i)) == OpArgR, base+GETARG_B(i))
#define RC(i)	check_exp(getCMode(GET_OPCODE(i)) == OpArgR, base+GETARG_C(i))
#define RKB(i)	check_exp(getBMode(GET_OPCODE(i)) == OpArgK, \
	ISK(GETARG_B(i)) ? k+INDEXK(GETARG_B(i)) : base+GETARG_B(i))
#define RKC(i)	check_exp(getCMode(GET_OPCODE(i)) == OpArgK, \
	ISK(GETARG_C(i)) ? k+INDEXK(GETARG_C(i)) : base+GETARG_C(i))
#define KBx(i)	check_exp(getBMode(GET_OPCODE(i)) == OpArgK, k+GETARG_Bx(i))


#define dojump(L,pc,i)	{(pc) += (i); luai_threadyield(L);}


#define Protect(x)	{ L->savedpc = pc; {x;}; base = L->base; }


#define arith_op(op,tm) { \
        TValue *rb = RKB(i); \
        TValue *rc = RKC(i); \
        if (ttisnumber(rb) && ttisnumber(rc)) { \
          lua_Number nb = nvalue(rb), nc = nvalue(rc); \
          setnvalue(ra, op(nb, nc)); \
        } \
        else \
          Protect(Arith(L, ra, rb, rc, tm)); \
      }



void luaV_execute (lua_State *L, int nexeccalls) {
  LClosure *cl;
  StkId base;
  TValue *k;
  const Instruction *pc;
 reentry:  /* entry point */
  lua_assert(isLua(L->ci));
  pc = L->savedpc;
  cl = &clvalue(L->ci->func)->l;
  base = L->base;
  k = cl->p->k;
  /* main loop of interpreter */
  for (;;) {
    const Instruction i = *pc++;
    StkId ra;
    if ((L->hookmask & (LUA_MASKLINE | LUA_MASKCOUNT)) &&
        (--L->hookcount == 0 || L->hookmask & LUA_MASKLINE)) {
      traceexec(L, pc);
      if (L->status == LUA_YIELD) {  /* did hook yield? */
        L->savedpc = pc - 1;
        return;
      }
      base = L->base;
    }
    /* warning!! several calls may realloc the stack and invalidate `ra' */
    ra = RA(i);
    lua_assert(base == L->base && L->base == L->ci->base);
    lua_assert(base <= L->top && L->top <= L->stack + L->stacksize);
    lua_assert(L->top == L->ci->top || luaG_checkopenop(i));
    switch (GET_OPCODE(i)) {
      case OP_MOVE: {
        setobjs2s(L, ra, RB(i));
        continue;
      }
      case OP_LOADK: {
        setobj2s(L, ra, KBx(i));
        continue;
      }
      case OP_LOADBOOL: {
        setbvalue(ra, GETARG_B(i));
        if (GETARG_C(i)) pc++;  /* skip next instruction (if C) */
        continue;
      }
      case OP_LOADNIL: {
        TValue *rb = RB(i);
        do {
          setnilvalue(rb--);
        } while (rb >= ra);
        continue;
      }
      case OP_GETUPVAL: {
        int b = GETARG_B(i);
        setobj2s(L, ra, cl->upvals[b]->v);
        continue;
      }
      case OP_GETGLOBAL: {
        TValue g;
        TValue *rb = KBx(i);
        sethvalue(L, &g, cl->env);
        lua_assert(ttisstring(rb));
        Protect(luaV_gettable(L, &g, rb, ra));
        continue;
      }
      case OP_GETTABLE: {
        Protect(luaV_gettable(L, RB(i), RKC(i), ra));
        continue;
      }
      case OP_SETGLOBAL: {
        TValue g;
        sethvalue(L, &g, cl->env);
        lua_assert(ttisstring(KBx(i)));
        Protect(luaV_settable(L, &g, KBx(i), ra));
        continue;
      }
      case OP_SETUPVAL: {
        UpVal *uv = cl->upvals[GETARG_B(i)];
        setobj(L, uv->v, ra);
        luaC_barrier(L, uv, ra);
        continue;
      }
      case OP_SETTABLE: {
        Protect(luaV_settable(L, ra, RKB(i), RKC(i)));
        continue;
      }
      case OP_NEWTABLE: {
        int b = GETARG_B(i);
        int c = GETARG_C(i);
        sethvalue(L, ra, luaH_new(L, luaO_fb2int(b), luaO_fb2int(c)));
        Protect(luaC_checkGC(L));
        continue;
      }
      case OP_SELF: {
        StkId rb = RB(i);
        setobjs2s(L, ra+1, rb);
        Protect(luaV_gettable(L, rb, RKC(i), ra));
        continue;
      }
      case OP_ADD: {
        arith_op(luai_numadd, TM_ADD);
        continue;
      }
      case OP_SUB: {
        arith_op(luai_numsub, TM_SUB);
        continue;
      }
      case OP_MUL: {
        arith_op(luai_nummul, TM_MUL);
        continue;
      }
      case OP_DIV: {
        arith_op(luai_numdiv, TM_DIV);
        continue;
      }
      case OP_MOD: {
        arith_op(luai_nummod, TM_MOD);
        continue;
      }
      case OP_POW: {
        arith_op(luai_numpow, TM_POW);
        continue;
      }
      case OP_UNM: {
        TValue *rb = RB(i);
        if (ttisnumber(rb)) {
          lua_Number nb = nvalue(rb);
          setnvalue(ra, luai_numunm(nb));
        }
        else {
          Protect(Arith(L, ra, rb, rb, TM_UNM));
        }
        continue;
      }
      case OP_NOT: {
        int res = l_isfalse(RB(i));  /* next assignment may change this value */
        setbvalue(ra, res);
        continue;
      }
      case OP_LEN: {
        const TValue *rb = RB(i);
        switch (ttype(rb)) {
          case LUA_TTABLE: {
            setnvalue(ra, cast_num(luaH_getn(hvalue(rb))));
            break;
          }
          case LUA_TSTRING: {
            setnvalue(ra, cast_num(tsvalue(rb)->len));
            break;
          }
          default: {  /* try metamethod */
            Protect(
              if (!call_binTM(L, rb, luaO_nilobject, ra, TM_LEN))
                luaG_typeerror(L, rb, "get length of");
            )
          }
        }
        continue;
      }
      case OP_CONCAT: {
        int b = GETARG_B(i);
        int c = GETARG_C(i);
        Protect(luaV_concat(L, c-b+1, c); luaC_checkGC(L));
        setobjs2s(L, RA(i), base+b);
        continue;
      }
      case OP_JMP: {
        dojump(L, pc, GETARG_sBx(i));
        continue;
      }
      case OP_EQ: {
        TValue *rb = RKB(i);
        TValue *rc = RKC(i);
        Protect(
          if (equalobj(L, rb, rc) == GETARG_A(i))
            dojump(L, pc, GETARG_sBx(*pc));
        )
        pc++;
        continue;
      }
      case OP_LT: {
        Protect(
          if (luaV_lessthan(L, RKB(i), RKC(i)) == GETARG_A(i))
            dojump(L, pc, GETARG_sBx(*pc));
        )
        pc++;
        continue;
      }
      case OP_LE: {
        Protect(
          if (lessequal(L, RKB(i), RKC(i)) == GETARG_A(i))
            dojump(L, pc, GETARG_sBx(*pc));
        )
        pc++;
        continue;
      }
      case OP_TEST: {
        if (l_isfalse(ra) != GETARG_C(i))
          dojump(L, pc, GETARG_sBx(*pc));
        pc++;
        continue;
      }
      case OP_TESTSET: {
        TValue *rb = RB(i);
        if (l_isfalse(rb) != GETARG_C(i)) {
          setobjs2s(L, ra, rb);
          dojump(L, pc, GETARG_sBx(*pc));
        }
        pc++;
        continue;
      }
      case OP_CALL: {
        int b = GETARG_B(i);
        int nresults = GETARG_C(i) - 1;
        if (b != 0) L->top = ra+b;  /* else previous instruction set top */
        L->savedpc = pc;
        switch (luaD_precall(L, ra, nresults)) {
          case PCRLUA: {
            nexeccalls++;
            goto reentry;  /* restart luaV_execute over new Lua function */
          }
          case PCRC: {
            /* it was a C function (`precall' called it); adjust results */
            if (nresults >= 0) L->top = L->ci->top;
            base = L->base;
            continue;
          }
          default: {
            return;  /* yield */
          }
        }
      }
      case OP_TAILCALL: {
        int b = GETARG_B(i);
        if (b != 0) L->top = ra+b;  /* else previous instruction set top */
        L->savedpc = pc;
        lua_assert(GETARG_C(i) - 1 == LUA_MULTRET);
        switch (luaD_precall(L, ra, LUA_MULTRET)) {
          case PCRLUA: {
            /* tail call: put new frame in place of previous one */
            CallInfo *ci = L->ci - 1;  /* previous frame */
            int aux;
            StkId func = ci->func;
            StkId pfunc = (ci+1)->func;  /* previous function index */
            if (L->openupval) luaF_close(L, ci->base);
            L->base = ci->base = ci->func + ((ci+1)->base - pfunc);
            for (aux = 0; pfunc+aux < L->top; aux++)  /* move frame down */
              setobjs2s(L, func+aux, pfunc+aux);
            ci->top = L->top = func+aux;  /* correct top */
            lua_assert(L->top == L->base + clvalue(func)->l.p->maxstacksize);
            ci->savedpc = L->savedpc;
            ci->tailcalls++;  /* one more call lost */
            L->ci--;  /* remove new frame */
            goto reentry;
          }
          case PCRC: {  /* it was a C function (`precall' called it) */
            base = L->base;
            continue;
          }
          default: {
            return;  /* yield */
          }
        }
      }
      case OP_RETURN: {
        int b = GETARG_B(i);
        if (b != 0) L->top = ra+b-1;
        if (L->openupval) luaF_close(L, base);
        L->savedpc = pc;
        b = luaD_poscall(L, ra);
        if (--nexeccalls == 0)  /* was previous function running `here'? */
          return;  /* no: return */
        else {  /* yes: continue its execution */
          if (b) L->top = L->ci->top;
          lua_assert(isLua(L->ci));
          lua_assert(GET_OPCODE(*((L->ci)->savedpc - 1)) == OP_CALL);
          goto reentry;
        }
      }
      case OP_FORLOOP: {
        lua_Number step = nvalue(ra+2);
        lua_Number idx = luai_numadd(nvalue(ra), step); /* increment index */
        lua_Number limit = nvalue(ra+1);
        if (luai_numlt(0, step) ? luai_numle(idx, limit)
                                : luai_numle(limit, idx)) {
          dojump(L, pc, GETARG_sBx(i));  /* jump back */
          setnvalue(ra, idx);  /* update internal index... */
          setnvalue(ra+3, idx);  /* ...and external index */
        }
        continue;
      }
      case OP_FORPREP: {
        const TValue *init = ra;
        const TValue *plimit = ra+1;
        const TValue *pstep = ra+2;
        L->savedpc = pc;  /* next steps may throw errors */
        if (!tonumber(init, ra))
          luaG_runerror(L, LUA_QL("for") " initial value must be a number");
        else if (!tonumber(plimit, ra+1))
          luaG_runerror(L, LUA_QL("for") " limit must be a number");
        else if (!tonumber(pstep, ra+2))
          luaG_runerror(L, LUA_QL("for") " step must be a number");
        setnvalue(ra, luai_numsub(nvalue(ra), nvalue(pstep)));
        dojump(L, pc, GETARG_sBx(i));
        continue;
      }
      case OP_TFORLOOP: {
        StkId cb = ra + 3;  /* call base */
        setobjs2s(L, cb+2, ra+2);
        setobjs2s(L, cb+1, ra+1);
        setobjs2s(L, cb, ra);
        L->top = cb+3;  /* func. + 2 args (state and index) */
        Protect(luaD_call(L, cb, GETARG_C(i)));
        L->top = L->ci->top;
        cb = RA(i) + 3;  /* previous call may change the stack */
        if (!ttisnil(cb)) {  /* continue loop? */
          setobjs2s(L, cb-1, cb);  /* save control variable */
          dojump(L, pc, GETARG_sBx(*pc));  /* jump back */
        }
        pc++;
        continue;
      }
      case OP_SETLIST: {
        int n = GETARG_B(i);
        int c = GETARG_C(i);
        int last;
        Table *h;
        if (n == 0) {
          n = cast_int(L->top - ra) - 1;
          L->top = L->ci->top;
        }
        if (c == 0) c = cast_int(*pc++);
        runtime_check(L, ttistable(ra));
        h = hvalue(ra);
        last = ((c-1)*LFIELDS_PER_FLUSH) + n;
        if (last > h->sizearray)  /* needs more space? */
          luaH_resizearray(L, h, last);  /* pre-alloc it at once */
        for (; n > 0; n--) {
          TValue *val = ra+n;
          setobj2t(L, luaH_setnum(L, h, last--), val);
          luaC_barriert(L, h, val);
        }
        continue;
      }
      case OP_CLOSE: {
        luaF_close(L, ra);
        continue;
      }
      case OP_CLOSURE: {
        Proto *p;
        Closure *ncl;
        int nup, j;
        p = cl->p->p[GETARG_Bx(i)];
        nup = p->nups;
        ncl = luaF_newLclosure(L, nup, cl->env);
        ncl->l.p = p;
        for (j=0; j<nup; j++, pc++) {
          if (GET_OPCODE(*pc) == OP_GETUPVAL)
            ncl->l.upvals[j] = cl->upvals[GETARG_B(*pc)];
          else {
            lua_assert(GET_OPCODE(*pc) == OP_MOVE);
            ncl->l.upvals[j] = luaF_findupval(L, base + GETARG_B(*pc));
          }
        }
        setclvalue(L, ra, ncl);
        Protect(luaC_checkGC(L));
        continue;
      }
      case OP_VARARG: {
        int b = GETARG_B(i) - 1;
        int j;
        CallInfo *ci = L->ci;
        int n = cast_int(ci->base - ci->func) - cl->p->numparams - 1;
        if (b == LUA_MULTRET) {
          Protect(luaD_checkstack(L, n));
          ra = RA(i);  /* previous call may change the stack */
          b = n;
          L->top = ra + n;
        }
        for (j = 0; j < b; j++) {
          if (j < n) {
            setobjs2s(L, ra + j, ci->base - n + j);
          }
          else {
            setnilvalue(ra + j);
          }
        }
        continue;
      }
    }
  }
}



 

generated by cgit-pink 1.4.1-2-gfad0 (git 2.36.2.497.gbbea4dcf42) at 2024-08-22 23:19:01 +0000