clean up some cruft from error callstacks
before: stack traceback: [string "text.lua"]:9: in function 'draw' [string "edit.lua"]:200: in function 'draw' [string "run.lua"]:140: in function 'draw' [string "main.lua"]:162: in function <[string "main.lua"]:155> [C]: in function 'xpcall' [string "app.lua"]:38: in function <[string "app.lua"]:20> [C]: in function 'xpcall' [love "boot.lua"]:370: in function <[love "boot.lua"]:337> after: stack traceback: text.lua:9: in function 'draw' edit.lua:200: in function 'draw' run.lua:140: in function 'draw' main.lua:162: in function <[string "main.lua"]:155> [C]: in function 'xpcall' app.lua:38: in function <[string "app.lua"]:20> [C]: in function 'xpcall' [love "boot.lua"]:370: in function <[love "boot.lua"]:337>
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23
app.lua
23
app.lua
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@ -43,7 +43,8 @@ function love.run()
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end
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function handle_error(err)
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Error_message = debug.traceback('Error: ' .. tostring(err), --[[stack frame]]2)
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local callstack = debug.traceback('', --[[stack frame]]2)
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Error_message = 'Error: ' .. tostring(err)..'\n'..clean_up_callstack(callstack)
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print(Error_message)
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if Current_app == 'run' then
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Settings.current_app = 'source'
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@ -56,6 +57,26 @@ function handle_error(err)
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end
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end
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-- I tend to read code from files myself (say using love.filesystem calls)
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-- rather than offload that to load().
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-- Functions compiled in this manner have ugly filenames of the form [string "filename"]
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-- This function cleans out this cruft from error callstacks.
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function clean_up_callstack(callstack)
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local frames = {}
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print(callstack)
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for frame in string.gmatch(callstack, '[^\n]+\n*') do
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local line = frame:gsub('^%s*(.-)\n?$', '%1')
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local filename, rest = line:match('([^:]*):(.*)')
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local core_filename = filename:match('^%[string "(.*)"%]$')
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-- pass through frames that don't match this format
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-- this includes the initial line "stack traceback:"
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local new_frame = (core_filename or filename)..':'..rest
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table.insert(frames, new_frame)
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end
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-- the initial "stack traceback:" line was unindented and remains so
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return table.concat(frames, '\n\t')
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end
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-- The rest of this file wraps around various LÖVE primitives to support
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-- automated tests. Often tests will run with a fake version of a primitive
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-- that redirects to the real love.* version once we're done with tests.
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