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unittests: Make it easier to determine on which _spec line it crashed (#6424)

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Benchmarks:

Before change: 17.78s user 3.48s system  94% cpu 22.525 total
After change:  25.38s user 4.46s system 101% cpu 29.317 total
This commit is contained in:
Nikolai Aleksandrovich Pavlov 2017-04-02 14:25:47 +03:00 committed by Justin M. Keyes
parent 58422f17d8
commit ddfa0359c6
1 changed files with 18 additions and 5 deletions
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23
test/unit/helpers.lua
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@ -528,7 +528,8 @@ local hook_msglen = 1 + 1 + 1 + (1 + hook_fnamelen) + (1 + hook_sfnamelen) + (1
local tracehelp = dedent([[
┌ Trace type: _r_eturn from function , function _c_all, _l_ine executed,
│ _t_ail return, _C_ount (should not actually appear).
│ _t_ail return, _C_ount (should not actually appear),
│ _s_aved from previous run for reference.
│┏ Function type: _L_ua function, _C_ function, _m_ain part of chunk,
│┃ function that did _t_ail call.
│┃┌ Function name type: _g_lobal, _l_ocal, _m_ethod, _f_ield, _u_pvalue,
@ -549,15 +550,27 @@ local function child_sethook(wr)
return
end
local trace_only_c = trace_level <= 1
local function hook(reason, lnum)
local prev_info, prev_reason, prev_lnum
local function hook(reason, lnum, use_prev)
local info = nil
if reason ~= 'tail return' then -- tail return
if use_prev then
info = prev_info
elseif reason ~= 'tail return' then -- tail return
info = debug.getinfo(2, 'nSl')
end
if trace_only_c and (not info or info.what ~= 'C') then
if trace_only_c and (not info or info.what ~= 'C') and not use_prev then
if info.source:sub(-9) == '_spec.lua' then
prev_info = info
prev_reason = 'saved'
prev_lnum = lnum
end
return
end
if trace_only_c and not use_prev and prev_reason then
hook(prev_reason, prev_lnum, true)
prev_reason = nil
end
local whatchar = ' '
local namewhatchar = ' '
@ -609,7 +622,7 @@ local function child_sethook(wr)
-- eq(hook_msglen, #msg)
sc.write(wr, msg)
end
debug.sethook(hook, trace_only_c and 'cr' or 'crl')
debug.sethook(hook, 'crl')
end
local trace_end_msg = ('E%s\n'):format((' '):rep(hook_msglen - 2))