This table is "just a normal Lua table". Lua code can use it in whatever
way it wants to store things related to a given C object.
An object (userdata) already references a "plain Lua table" via
lua_setuservalue() / lua_setfenv(). This is used to keep a reference to
signal functions that are connected to an object. The signal code only
uses lightuserdata keys in this table. This commit adds an entry with
key "data" to this table which just references another table. This is
the table that is made available as .data.
Via this .data property, Lua code can add own properties to C objects
without having to use, for example, weak tables. The weak tables have
the downside that they produce a leak if the value references the key.
The new .data property does not have any such problem (no weak
references are involved).
This new data property is not documented, because I'd have to touch lots
of files and I'm lazy.
Signed-off-by: Uli Schlachter <psychon@znc.in>
A client c could have no c.machine or no c.pid because the corresponding
properties are not set on its window. Previously, the C code would return an
empty string or 0 for these values. This commit makes the C code give Lua no
value instead (not even a nil).
Signed-off-by: Uli Schlachter <psychon@znc.in>
Lua 5.2 removed lua_[gs]etfenv and introduced
lua_[gs]etuservalue. Not sure though if it provides
the required functionality which awesome is using.
Thus, need some testing.
Signed-off-by: Arvydas Sidorenko <asido4@gmail.com>
This option is no longer valid in modelines, so it has been removed from
all modelines using the following shellscript:
#!/bin/ksh
git ls-tree -r HEAD | cut -f2 | while read f; do
egrep -e '^(//|--) vim: .*encoding=' $f >/dev/null || continue
sed -E -e '/^(\/\/|--) vim:/s/:encoding=utf-8//' $f > /tmp/foo
mv /tmp/foo $f
done
Signed-off-by: Gregor Best <gbe@ring0.de>
Signed-off-by: Uli Schlachter <psychon@znc.in>
With this patch, we track the number of objects that are alive for any class.
This information can be accessed via class.instances()
For example:
print("wiboxes", wibox.instances())
print("widgets", widget.instances())
Signed-off-by: Uli Schlachter <psychon@znc.in>
This commit makes it an error if an unknown signal is connected, disconnected or
emitted. All signals have to be added before they can be used.
Signed-off-by: Uli Schlachter <psychon@znc.in>
Some functions didn't check the class of objects they were passed but just
casted them to the type they expected. This lead to code like e.g. the following
to crash awesome:
c.titlebar = c
This adds a new function luaA_object_ref_class() which works like
luaA_object_ref(), but which also checks the class of the object.
Additionally, this function is now used in all necessary places.
Signed-off-by: Uli Schlachter <psychon@znc.in>
Signed-off-by: Julien Danjou <julien@danjou.info>
We use lua_class_t pointer as key in the registry to store metatable we
will compare.
lauxlib uses a string, which sucks, because it forces to do a
pushliteral() each time you want to get a metatable from the registry,
which is slower.
Signed-off-by: Julien Danjou <julien@danjou.info>
Uli Schlachter
Uli Schlachter
Gregor Best
Arvydas Sidorenko
Julien Danjou
Brian Gianforcaro
Ciaran McCreesh