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wibox.widget.base: Use assert() instead of error() 

This means you now get a backtrace (traceback?) that helps identifying
the faulty code.

Signed-off-by: Uli Schlachter <psychon@znc.in>
This commit is contained in:
Uli Schlachter 2010-10-22 14:50:45 +02:00
parent 1f95825a1e
commit f1fd4a52a1
1 changed files with 5 additions and 10 deletions
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15
lib/wibox/widget/base.lua.in
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@ -4,9 +4,9 @@
-- @release @AWESOME_VERSION@ -- @release @AWESOME_VERSION@
--------------------------------------------------------------------------- ---------------------------------------------------------------------------
local debug = require("gears.debug")
local object = require("gears.object") local object = require("gears.object")
local pairs = pairs local pairs = pairs
local error = error
local type = type local type = type
local table = table local table = table
@ -106,19 +106,14 @@ end
--- Do some sanity checking on widget. This function raises a lua error if --- Do some sanity checking on widget. This function raises a lua error if
-- widget is not a valid widget. -- widget is not a valid widget.
function check_widget(widget) function check_widget(widget)
if type(widget) ~= "table" then debug.assert(type(widget) == "table")
error("widget is not a table?!")
end
for k, func in pairs({ "draw", "fit", "add_signal", "connect_signal", "disconnect_signal" }) do for k, func in pairs({ "draw", "fit", "add_signal", "connect_signal", "disconnect_signal" }) do
if type(widget[func]) ~= "function" then debug.assert(type(widget[func]) == "function", func .. " is not a function")
error("widget's " .. func .. "() is not a function?!")
end
end end
local width, height = widget:fit(0, 0) local width, height = widget:fit(0, 0)
if type(width) ~= "number" or type(height) ~= "number" then debug.assert(type(width) == "number")
error("widget's fit() didn't return two numbers") debug.assert(type(height) == "number")
end
end end
-- vim: filetype=lua:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80 -- vim: filetype=lua:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80