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Improved error handling of events

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This commit is contained in:
Timo Smit 2019-01-17 15:31:23 +01:00
parent 6d3197413a
commit cd701f187b
1 changed files with 31 additions and 26 deletions
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31
luascripts/wolfadmin/util/events.lua
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@ -15,9 +15,6 @@
-- You should have received a copy of the GNU General Public License
-- along with this program. If not, see <http://www.gnu.org/licenses/>.
local constants = wolfa_requireModule("util.constants")
local util = wolfa_requireModule("util.util")
local events = {}
local data = {}
@ -28,15 +25,23 @@ end
function events.add(name)
if events.get(name) then
error("event is already added: "..name)
error("event is already added: "..name, 2)
end
data[name] = {}
end
function events.ishandled(name, func)
function events.getHandlers(name)
if not events.get(name) then
error("event not added: "..name)
error("event not added: "..name, 2)
end
return events.get(name)
end
function events.isHandled(name, func)
if not events.get(name) then
error("event not added: "..name, 2)
end
local handlers = events.get(name)
@ -52,11 +57,11 @@ end
function events.handle(name, func)
if not events.get(name) then
error("event not added: "..name)
error("event not added: "..name, 2)
end
if events.ishandled(name, func) then
error("event "..name.." is already handled by this function")
if events.isHandled(name, func) then
error("event "..name.." is already handled by this function", 2)
end
table.insert(data[name], func)
@ -64,11 +69,11 @@ end
function events.unhandle(name, func)
if not events.get(name) then
error("event not added: "..name)
error("event not added: "..name, 2)
end
if not events.ishandled(name, func) then
error("event "..name.." is not handled by this function")
if not events.isHandled(name, func) then
error("event "..name.." is not handled by this function", 2)
end
local handlers = events.get(name)
@ -84,7 +89,7 @@ function events.trigger(name, ...)
local handlers = events.get(name)
if not handlers then
error("event not added: "..name)
error("event not added: "..name, 2)
end
local returnValue