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util.helpers: show_events(): Make more robust, and allow filtering results to a specific event

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This commit is contained in:
Matthew Wild 2012-04-26 06:58:21 +01:00
parent dbb3dc6a01
commit 9005efc19b
1 changed files with 11 additions and 9 deletions
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20
util/helpers.lua
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@ -33,30 +33,32 @@ function revert_log_events(events)
events.fire_event, events[events.fire_event] = events[events.fire_event], nil; -- :))
end
function show_events(events)
function show_events(events, specific_event)
local event_handlers = events._handlers;
local events_array = {};
local event_handler_arrays = {};
for event in pairs(events._event_map) do
local handlers = event_handlers[event];
table.insert(events_array, event);
local handler_strings = {};
for i, handler in ipairs(handlers) do
local upvals = debug.string_from_var_table(debug.get_upvalues_table(handler));
handler_strings[i] = " "..i..": "..tostring(handler)..(upvals and ("\n "..upvals) or "");
if handlers and (event == specific_event or not specific_event) then
table.insert(events_array, event);
local handler_strings = {};
for i, handler in ipairs(handlers) do
local upvals = debug.string_from_var_table(debug.get_upvalues_table(handler));
handler_strings[i] = " "..i..": "..tostring(handler)..(upvals and ("\n "..upvals) or "");
end
event_handler_arrays[event] = handler_strings;
end
event_handler_arrays[event] = handler_strings;
end
table.sort(events_array);
local i = 1;
repeat
while i <= #events_array do
local handlers = event_handler_arrays[events_array[i]];
for j=#handlers, 1, -1 do
table.insert(events_array, i+1, handlers[j]);
end
if i > 1 then events_array[i] = "\n"..events_array[i]; end
i = i + #handlers + 1
until i == #events_array;
end
return table.concat(events_array, "\n");
end