diff options
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/manual.html | 29 |
1 files changed, 17 insertions, 12 deletions
diff --git a/doc/manual.html b/doc/manual.html index f082929e..5ed8f069 100644 --- a/doc/manual.html +++ b/doc/manual.html @@ -33,7 +33,7 @@ Freely available under the terms of the <!-- ====================================================================== --> <p> -<!-- $Id: manual.of,v 1.143 2015/01/02 13:07:38 roberto Exp $ --> +<!-- $Id: manual.of,v 1.146 2015/01/06 11:23:01 roberto Exp $ --> @@ -429,7 +429,7 @@ You can emulate how Lua queries a metamethod for an object <code>obj</code> with the following code: <pre> - rawget(getmetatable(obj) or {}, event_name) + rawget(getmetatable(obj) or {}, "__" .. event_name) </pre> <p> @@ -761,12 +761,12 @@ When a marked object becomes garbage, it is not collected immediately by the garbage collector. Instead, Lua puts it in a list. After the collection, -Lua goes through that list: +Lua goes through that list. For each object in the list, -it checks the object's <code>__gc</code> metamethod; -if it is a function, -Lua calls it with the object as its single argument. -If the metamethod is not a function, +it checks the object's <code>__gc</code> metamethod: +If it is a function, +Lua calls it with the object as its single argument; +if the metamethod is not a function, Lua simply ignores it. @@ -2218,6 +2218,11 @@ is equivalent to </pre> <p> +The order of the assignments in a constructor is undefined. +(This order would be relevant only when there are repeated keys.) + + +<p> If the last field in the list has the form <code>exp</code> and the expression is a function call or a vararg expression, then all values returned by this expression enter the list consecutively @@ -2785,7 +2790,7 @@ never returning <p> The panic function runs as if it were a message handler (see <a href="#2.3">§2.3</a>); in particular, the error message is at the top of the stack. -However, there is no guarantees about stack space. +However, there is no guarantee about stack space. To push anything on the stack, the panic function must first check the available space (see <a href="#4.2">§4.2</a>). @@ -2861,7 +2866,7 @@ As an illustration, consider the following function: } </pre><p> Now we want to allow -the Lua code being ran by <a href="#lua_pcall"><code>lua_pcall</code></a> to yield. +the Lua code being run by <a href="#lua_pcall"><code>lua_pcall</code></a> to yield. First, we can rewrite our function like here: <pre> @@ -2880,7 +2885,7 @@ the new function <code>k</code> is a which should do all the work that the original function was doing after calling <a href="#lua_pcall"><code>lua_pcall</code></a>. Now, we must inform Lua that it must call <code>k</code> if the Lua code -begin running by <a href="#lua_pcall"><code>lua_pcall</code></a> gets interrupted in some way +being executed by <a href="#lua_pcall"><code>lua_pcall</code></a> gets interrupted in some way (errors or yielding), so we rewrite the code as here, replacing <a href="#lua_pcall"><code>lua_pcall</code></a> by <a href="#lua_pcallk"><code>lua_pcallk</code></a>: @@ -4179,7 +4184,7 @@ error while running a <code>__gc</code> metamethod. <pre>int lua_pcallk (lua_State *L, int nargs, int nresults, - int errfunc, + int msgh, lua_KContext ctx, lua_KFunction k);</pre> @@ -10774,7 +10779,7 @@ and LiteralString, see <a href="#3.1">§3.1</a>.) <HR> <SMALL CLASS="footer"> Last update: -Fri Jan 2 11:29:40 BRST 2015 +Tue Jan 6 10:10:50 BRST 2015 </SMALL> <!-- Last change: revised for Lua 5.3.0 (final) |