object: Add type information to documentation

lib/gears/object.lua

@@ -21,10 +21,10 @@ local function check(obj)
 end
 
 --- Find a given signal
--- @param obj The object to search in
--- @param name The signal to find
--- @param error_msg Error message for if the signal is not found
--- @return The signal table
+-- @tparam table obj The object to search in
+-- @tparam string name The signal to find
+-- @tparam string error_msg Error message for if the signal is not found
+-- @treturn table The signal table
 local function find_signal(obj, name, error_msg)
     check(obj)
     if not obj._signals[name] then
@@ -34,7 +34,7 @@ local function find_signal(obj, name, error_msg)
 end
 
 --- Add a signal to an object. All signals must be added before they can be used.
--- @param name The name of the new signal.
+-- @tparam string name The name of the new signal.
 function object:add_signal(name)
     check(self)
     assert(type(name) == "string", "name must be a string, got: " .. type(name))
@@ -46,9 +46,9 @@ function object:add_signal(name)
     end
 end
 
---- Connect to a signal
--- @param name The name of the signal
--- @param func The callback to call when the signal is emitted
+--- Connect to a signal.
+-- @tparam string name The name of the signal
+-- @tparam function func The callback to call when the signal is emitted
 function object:connect_signal(name, func)
     assert(type(func) == "function", "callback must be a function, got: " .. type(func))
     local sig = find_signal(self, name, "connect to")
@@ -88,8 +88,8 @@ end
 
 --- Connect to a signal weakly. This allows the callback function to be garbage
 -- collected and automatically disconnects the signal when that happens.
--- @param name The name of the signal
--- @param func The callback to call when the signal is emitted
+-- @tparam string name The name of the signal
+-- @tparam function func The callback to call when the signal is emitted
 function object:weak_connect_signal(name, func)
     assert(type(func) == "function", "callback must be a function, got: " .. type(func))
     local sig = find_signal(self, name, "connect to")
@@ -97,18 +97,18 @@ function object:weak_connect_signal(name, func)
     sig.weak[func] = make_the_gc_obey(func)
 end
 
---- Disonnect to a signal
--- @param name The name of the signal
--- @param func The callback that should be disconnected
+--- Disonnect to a signal.
+-- @tparam string name The name of the signal
+-- @tparam function func The callback that should be disconnected
 function object:disconnect_signal(name, func)
     local sig = find_signal(self, name, "disconnect from")
     sig.weak[func] = nil
     sig.strong[func] = nil
 end
 
---- Emit a signal
+--- Emit a signal.
 --
--- @param name The name of the signal
+-- @tparam string name The name of the signal
 -- @param ... Extra arguments for the callback functions. Each connected
 --   function receives the object as first argument and then any extra arguments
 --   that are given to emit_signal()