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authorMatthew Wild <mwild1@gmail.com>2012-04-24 18:54:34 +0100
committerMatthew Wild <mwild1@gmail.com>2012-04-24 18:54:34 +0100
commitcb0212542b4c63567d420538eb72c1f8b9623076 (patch)
tree91563bc30926ffc037d7e50e53cadb4ae9693b98
parent97f896be36bb265ae0bae619e6e580b88bc704bd (diff)
downloadprosody-cb0212542b4c63567d420538eb72c1f8b9623076.tar.gz
prosody-cb0212542b4c63567d420538eb72c1f8b9623076.zip
util.helpers: Add show_events(), to show the events and handlers in a util.events object
-rw-r--r--util/helpers.lua29
1 files changed, 29 insertions, 0 deletions
diff --git a/util/helpers.lua b/util/helpers.lua
index a8c8c612..ad23dd79 100644
--- a/util/helpers.lua
+++ b/util/helpers.lua
@@ -6,6 +6,8 @@
-- COPYING file in the source package for more information.
--
+local debug = require "util.debug";
+
module("helpers", package.seeall);
-- Helper functions for debugging
@@ -31,6 +33,33 @@ function revert_log_events(events)
events.fire_event, events[events.fire_event] = events[events.fire_event], nil; -- :))
end
+function show_events(events)
+ 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 "");
+ end
+ event_handler_arrays[event] = handler_strings;
+ end
+ table.sort(events_array);
+ local i = 1;
+ repeat
+ 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;
+ return table.concat(events_array, "\n");
+end
+
function get_upvalue(f, get_name)
local i, name, value = 0;
repeat