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-- filename : luat-tra.lua
-- comment : companion to luat-lib.tex
-- author : Hans Hagen, PRAGMA-ADE, Hasselt NL
-- copyright: PRAGMA ADE / ConTeXt Development Team
-- license : see context related readme files
if not versions then versions = { } end versions['luat-tra'] = 1.001
debugger = { }
debugger.counters = { }
debugger.names = { }
function debugger.hook()
local f = debug.getinfo(2,"f").func
if debugger.counters[f] == nil then
debugger.counters[f] = 1
debugger.names[f] = debug.getinfo(2,"Sn")
else
debugger.counters[f] = debugger.counters[f] + 1
end
end
function debugger.getname(func)
local n = debugger.names[func]
if n.what == "C" then
return n.name
end
local lc = string.format("[%s]:%s", n.short_src, n.linedefined)
if n.namewhat ~= "" then
return string.format("%s (%s)", lc, n.name)
else
return lc
end
end
function debugger.showstats(printer,threshold)
if not printer then printer = print end
if not threshold then threshold = 0 end
for func, count in pairs(debugger.counters) do
if count > threshold then
printer(string.format("%8i %s\n", count, debugger.getname(func)))
end
end
end
function debugger.savestats(filename,threshold)
local f = io.open(filename,'w')
if f then
debugger.showstats(function(str) f:write(str) end,threshold)
f:close()
end
end
function debugger.enable()
debug.sethook(debugger.hook,"c")
end
function debugger.disable()
debug.sethook()
--~ debugger.counters[debug.getinfo(2,"f").func] = nil
end
function debugger.tracing()
return tonumber((os.env['MTX.TRACE.CALLS'] or os.env['MTX_TRACE_CALLS'] or 0)) > 0
end
--~ debugger.enable()
--~ print(math.sin(1*.5))
--~ print(math.sin(1*.5))
--~ print(math.sin(1*.5))
--~ print(math.sin(1*.5))
--~ print(math.sin(1*.5))
--~ debugger.disable()
--~ print("")
--~ debugger.showstats()
--~ print("")
--~ debugger.showstats(print,3)
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