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Diffstat (limited to 'testes/db.lua')
-rw-r--r-- | testes/db.lua | 948 |
1 files changed, 948 insertions, 0 deletions
diff --git a/testes/db.lua b/testes/db.lua new file mode 100644 index 00000000..36d1cdaa --- /dev/null +++ b/testes/db.lua @@ -0,0 +1,948 @@ +-- $Id: db.lua,v 1.90 2018/04/02 17:55:58 roberto Exp $ +-- See Copyright Notice in file all.lua + +-- testing debug library + +local debug = require "debug" + +local function dostring(s) return assert(load(s))() end + +print"testing debug library and debug information" + +do +local a=1 +end + +assert(not debug.gethook()) + +local testline = 19 -- line where 'test' is defined +function test (s, l, p) -- this must be line 19 + collectgarbage() -- avoid gc during trace + local function f (event, line) + assert(event == 'line') + local l = table.remove(l, 1) + if p then print(l, line) end + assert(l == line, "wrong trace!!") + end + debug.sethook(f,"l"); load(s)(); debug.sethook() + assert(#l == 0) +end + + +do + assert(not pcall(debug.getinfo, print, "X")) -- invalid option + assert(not debug.getinfo(1000)) -- out of range level + assert(not debug.getinfo(-1)) -- out of range level + local a = debug.getinfo(print) + assert(a.what == "C" and a.short_src == "[C]") + a = debug.getinfo(print, "L") + assert(a.activelines == nil) + local b = debug.getinfo(test, "SfL") + assert(b.name == nil and b.what == "Lua" and b.linedefined == testline and + b.lastlinedefined == b.linedefined + 10 and + b.func == test and not string.find(b.short_src, "%[")) + assert(b.activelines[b.linedefined + 1] and + b.activelines[b.lastlinedefined]) + assert(not b.activelines[b.linedefined] and + not b.activelines[b.lastlinedefined + 1]) +end + + +-- test file and string names truncation +a = "function f () end" +local function dostring (s, x) return load(s, x)() end +dostring(a) +assert(debug.getinfo(f).short_src == string.format('[string "%s"]', a)) +dostring(a..string.format("; %s\n=1", string.rep('p', 400))) +assert(string.find(debug.getinfo(f).short_src, '^%[string [^\n]*%.%.%."%]$')) +dostring(a..string.format("; %s=1", string.rep('p', 400))) +assert(string.find(debug.getinfo(f).short_src, '^%[string [^\n]*%.%.%."%]$')) +dostring("\n"..a) +assert(debug.getinfo(f).short_src == '[string "..."]') +dostring(a, "") +assert(debug.getinfo(f).short_src == '[string ""]') +dostring(a, "@xuxu") +assert(debug.getinfo(f).short_src == "xuxu") +dostring(a, "@"..string.rep('p', 1000)..'t') +assert(string.find(debug.getinfo(f).short_src, "^%.%.%.p*t$")) +dostring(a, "=xuxu") +assert(debug.getinfo(f).short_src == "xuxu") +dostring(a, string.format("=%s", string.rep('x', 500))) +assert(string.find(debug.getinfo(f).short_src, "^x*$")) +dostring(a, "=") +assert(debug.getinfo(f).short_src == "") +a = nil; f = nil; + + +repeat + local g = {x = function () + local a = debug.getinfo(2) + assert(a.name == 'f' and a.namewhat == 'local') + a = debug.getinfo(1) + assert(a.name == 'x' and a.namewhat == 'field') + return 'xixi' + end} + local f = function () return 1+1 and (not 1 or g.x()) end + assert(f() == 'xixi') + g = debug.getinfo(f) + assert(g.what == "Lua" and g.func == f and g.namewhat == "" and not g.name) + + function f (x, name) -- local! + name = name or 'f' + local a = debug.getinfo(1) + assert(a.name == name and a.namewhat == 'local') + return x + end + + -- breaks in different conditions + if 3>4 then break end; f() + if 3<4 then a=1 else break end; f() + while 1 do local x=10; break end; f() + local b = 1 + if 3>4 then return math.sin(1) end; f() + a = 3<4; f() + a = 3<4 or 1; f() + repeat local x=20; if 4>3 then f() else break end; f() until 1 + g = {} + f(g).x = f(2) and f(10)+f(9) + assert(g.x == f(19)) + function g(x) if not x then return 3 end return (x('a', 'x')) end + assert(g(f) == 'a') +until 1 + +test([[if +math.sin(1) +then + a=1 +else + a=2 +end +]], {2,3,4,7}) + +test([[-- +if nil then + a=1 +else + a=2 +end +]], {2,5,6}) + +test([[a=1 +repeat + a=a+1 +until a==3 +]], {1,3,4,3,4}) + +test([[ do + return +end +]], {2}) + +test([[local a +a=1 +while a<=3 do + a=a+1 +end +]], {1,2,3,4,3,4,3,4,3,5}) + +test([[while math.sin(1) do + if math.sin(1) + then break + end +end +a=1]], {1,2,3,6}) + +test([[for i=1,3 do + a=i +end +]], {1,2,1,2,1,2,1,3}) + +test([[for i,v in pairs{'a','b'} do + a=tostring(i) .. v +end +]], {1,2,1,2,1,3}) + +test([[for i=1,4 do a=1 end]], {1,1,1,1,1}) + + +do -- testing line info/trace with large gaps in source + + local a = {1, 2, 3, 10, 124, 125, 126, 127, 128, 129, 130, + 255, 256, 257, 500, 1000} + local s = [[ + local b = {10} + a = b[1] X + Y b[1] + b = 4 + ]] + for _, i in ipairs(a) do + local subs = {X = string.rep("\n", i)} + for _, j in ipairs(a) do + subs.Y = string.rep("\n", j) + local s = string.gsub(s, "[XY]", subs) + test(s, {1, 2 + i, 2 + i + j, 2 + i, 2 + i + j, 3 + i + j}) + end + end +end + +print'+' + +-- invalid levels in [gs]etlocal +assert(not pcall(debug.getlocal, 20, 1)) +assert(not pcall(debug.setlocal, -1, 1, 10)) + + +-- parameter names +local function foo (a,b,...) local d, e end +local co = coroutine.create(foo) + +assert(debug.getlocal(foo, 1) == 'a') +assert(debug.getlocal(foo, 2) == 'b') +assert(not debug.getlocal(foo, 3)) +assert(debug.getlocal(co, foo, 1) == 'a') +assert(debug.getlocal(co, foo, 2) == 'b') +assert(not debug.getlocal(co, foo, 3)) + +assert(not debug.getlocal(print, 1)) + + +local function foo () return (debug.getlocal(1, -1)) end +assert(not foo(10)) + + +-- varargs +local function foo (a, ...) + local t = table.pack(...) + for i = 1, t.n do + local n, v = debug.getlocal(1, -i) + assert(n == "(*vararg)" and v == t[i]) + end + assert(not debug.getlocal(1, -(t.n + 1))) + assert(not debug.setlocal(1, -(t.n + 1), 30)) + if t.n > 0 then + (function (x) + assert(debug.setlocal(2, -1, x) == "(*vararg)") + assert(debug.setlocal(2, -t.n, x) == "(*vararg)") + end)(430) + assert(... == 430) + end +end + +foo() +foo(print) +foo(200, 3, 4) +local a = {} +for i = 1, (_soft and 100 or 1000) do a[i] = i end +foo(table.unpack(a)) +a = nil + + + +do -- test hook presence in debug info + assert(not debug.gethook()) + local count = 0 + local function f () + assert(debug.getinfo(1).namewhat == "hook") + local sndline = string.match(debug.traceback(), "\n(.-)\n") + assert(string.find(sndline, "hook")) + count = count + 1 + end + debug.sethook(f, "l") + local a = 0 + _ENV.a = a + a = 1 + debug.sethook() + assert(count == 4) +end + + +a = {}; L = nil +local glob = 1 +local oldglob = glob +debug.sethook(function (e,l) + collectgarbage() -- force GC during a hook + local f, m, c = debug.gethook() + assert(m == 'crl' and c == 0) + if e == "line" then + if glob ~= oldglob then + L = l-1 -- get the first line where "glob" has changed + oldglob = glob + end + elseif e == "call" then + local f = debug.getinfo(2, "f").func + a[f] = 1 + else assert(e == "return") + end +end, "crl") + + +function f(a,b) + collectgarbage() + local _, x = debug.getlocal(1, 1) + local _, y = debug.getlocal(1, 2) + assert(x == a and y == b) + assert(debug.setlocal(2, 3, "pera") == "AA".."AA") + assert(debug.setlocal(2, 4, "maçã") == "B") + x = debug.getinfo(2) + assert(x.func == g and x.what == "Lua" and x.name == 'g' and + x.nups == 2 and string.find(x.source, "^@.*db%.lua$")) + glob = glob+1 + assert(debug.getinfo(1, "l").currentline == L+1) + assert(debug.getinfo(1, "l").currentline == L+2) +end + +function foo() + glob = glob+1 + assert(debug.getinfo(1, "l").currentline == L+1) +end; foo() -- set L +-- check line counting inside strings and empty lines + +_ = 'alo\ +alo' .. [[ + +]] +--[[ +]] +assert(debug.getinfo(1, "l").currentline == L+11) -- check count of lines + + +function g (...) + local arg = {...} + do local a,b,c; a=math.sin(40); end + local feijao + local AAAA,B = "xuxu", "mamão" + f(AAAA,B) + assert(AAAA == "pera" and B == "maçã") + do + local B = 13 + local x,y = debug.getlocal(1,5) + assert(x == 'B' and y == 13) + end +end + +g() + + +assert(a[f] and a[g] and a[assert] and a[debug.getlocal] and not a[print]) + + +-- tests for manipulating non-registered locals (C and Lua temporaries) + +local n, v = debug.getlocal(0, 1) +assert(v == 0 and n == "(*temporary)") +local n, v = debug.getlocal(0, 2) +assert(v == 2 and n == "(*temporary)") +assert(not debug.getlocal(0, 3)) +assert(not debug.getlocal(0, 0)) + +function f() + assert(select(2, debug.getlocal(2,3)) == 1) + assert(not debug.getlocal(2,4)) + debug.setlocal(2, 3, 10) + return 20 +end + +function g(a,b) return (a+1) + f() end + +assert(g(0,0) == 30) + + +debug.sethook(nil); +assert(debug.gethook() == nil) + + +-- minimal tests for setuservalue/getuservalue +do + assert(debug.setuservalue(io.stdin, 10) == nil) + local a, b = debug.getuservalue(io.stdin, 10) + assert(a == nil and not b) +end + +-- testing iteraction between multiple values x hooks +do + local function f(...) return 3, ... end + local count = 0 + local a = {} + for i = 1, 100 do a[i] = i end + debug.sethook(function () count = count + 1 end, "", 1) + local t = {table.unpack(a)} + assert(#t == 100) + t = {table.unpack(a, 1, 3)} + assert(#t == 3) + t = {f(table.unpack(a, 1, 30))} + assert(#t == 31) +end + + +-- testing access to function arguments + +local function collectlocals (level) + local tab = {} + for i = 1, math.huge do + local n, v = debug.getlocal(level + 1, i) + if not (n and string.find(n, "^[a-zA-Z0-9_]+$")) then + break -- consider only real variables + end + tab[n] = v + end + return tab +end + + +X = nil +a = {} +function a:f (a, b, ...) local arg = {...}; local c = 13 end +debug.sethook(function (e) + assert(e == "call") + dostring("XX = 12") -- test dostring inside hooks + -- testing errors inside hooks + assert(not pcall(load("a='joao'+1"))) + debug.sethook(function (e, l) + assert(debug.getinfo(2, "l").currentline == l) + local f,m,c = debug.gethook() + assert(e == "line") + assert(m == 'l' and c == 0) + debug.sethook(nil) -- hook is called only once + assert(not X) -- check that + X = collectlocals(2) + end, "l") +end, "c") + +a:f(1,2,3,4,5) +assert(X.self == a and X.a == 1 and X.b == 2 and X.c == nil) +assert(XX == 12) +assert(debug.gethook() == nil) + + +-- testing access to local variables in return hook (bug in 5.2) +do + local X = false + + local function foo (a, b, ...) + do local x,y,z end + local c, d = 10, 20 + return + end + + local function aux () + if debug.getinfo(2).name == "foo" then + X = true -- to signal that it found 'foo' + local tab = {a = 100, b = 200, c = 10, d = 20} + for n, v in pairs(collectlocals(2)) do + assert(tab[n] == v) + tab[n] = undef + end + assert(next(tab) == nil) -- 'tab' must be empty + end + end + + debug.sethook(aux, "r"); foo(100, 200); debug.sethook() + assert(X) + +end + + +local function eqseq (t1, t2) + assert(#t1 == #t2) + for i = 1, #t1 do + assert(t1[i] == t2[i]) + end +end + + +do print("testing inspection of parameters/returned values") + local on = false + local inp, out + + local function hook (event) + if not on then return end + local ar = debug.getinfo(2, "ruS") + local t = {} + for i = ar.ftransfer, ar.ftransfer + ar.ntransfer - 1 do + local _, v = debug.getlocal(2, i) + t[#t + 1] = v + end + if event == "return" then + out = t + else + inp = t + end + end + + debug.sethook(hook, "cr") + + on = true; math.sin(3); on = false + eqseq(inp, {3}); eqseq(out, {math.sin(3)}) + + on = true; select(2, 10, 20, 30, 40); on = false + eqseq(inp, {2, 10, 20, 30, 40}); eqseq(out, {20, 30, 40}) + + local function foo (a, ...) return ... end + local function foo1 () on = not on; return foo(20, 10, 0) end + foo1(); on = false + eqseq(inp, {20}); eqseq(out, {10, 0}) + + debug.sethook() +end + + + +-- testing upvalue access +local function getupvalues (f) + local t = {} + local i = 1 + while true do + local name, value = debug.getupvalue(f, i) + if not name then break end + assert(not t[name]) + t[name] = value + i = i + 1 + end + return t +end + +local a,b,c = 1,2,3 +local function foo1 (a) b = a; return c end +local function foo2 (x) a = x; return c+b end +assert(not debug.getupvalue(foo1, 3)) +assert(not debug.getupvalue(foo1, 0)) +assert(not debug.setupvalue(foo1, 3, "xuxu")) +local t = getupvalues(foo1) +assert(t.a == nil and t.b == 2 and t.c == 3) +t = getupvalues(foo2) +assert(t.a == 1 and t.b == 2 and t.c == 3) +assert(debug.setupvalue(foo1, 1, "xuxu") == "b") +assert(({debug.getupvalue(foo2, 3)})[2] == "xuxu") +-- upvalues of C functions are allways "called" "" (the empty string) +assert(debug.getupvalue(string.gmatch("x", "x"), 1) == "") + + +-- testing count hooks +local a=0 +debug.sethook(function (e) a=a+1 end, "", 1) +a=0; for i=1,1000 do end; assert(1000 < a and a < 1012) +debug.sethook(function (e) a=a+1 end, "", 4) +a=0; for i=1,1000 do end; assert(250 < a and a < 255) +local f,m,c = debug.gethook() +assert(m == "" and c == 4) +debug.sethook(function (e) a=a+1 end, "", 4000) +a=0; for i=1,1000 do end; assert(a == 0) + +do + debug.sethook(print, "", 2^24 - 1) -- count upperbound + local f,m,c = debug.gethook() + assert(({debug.gethook()})[3] == 2^24 - 1) +end + +debug.sethook() + + +-- tests for tail calls +local function f (x) + if x then + assert(debug.getinfo(1, "S").what == "Lua") + assert(debug.getinfo(1, "t").istailcall == true) + local tail = debug.getinfo(2) + assert(tail.func == g1 and tail.istailcall == true) + assert(debug.getinfo(3, "S").what == "main") + print"+" + end +end + +function g(x) return f(x) end + +function g1(x) g(x) end + +local function h (x) local f=g1; return f(x) end + +h(true) + +local b = {} +debug.sethook(function (e) table.insert(b, e) end, "cr") +h(false) +debug.sethook() +local res = {"return", -- first return (from sethook) + "call", "tail call", "call", "tail call", + "return", "return", + "call", -- last call (to sethook) +} +for i = 1, #res do assert(res[i] == table.remove(b, 1)) end + +b = 0 +debug.sethook(function (e) + if e == "tail call" then + b = b + 1 + assert(debug.getinfo(2, "t").istailcall == true) + else + assert(debug.getinfo(2, "t").istailcall == false) + end + end, "c") +h(false) +debug.sethook() +assert(b == 2) -- two tail calls + +lim = _soft and 3000 or 30000 +local function foo (x) + if x==0 then + assert(debug.getinfo(2).what == "main") + local info = debug.getinfo(1) + assert(info.istailcall == true and info.func == foo) + else return foo(x-1) + end +end + +foo(lim) + + +print"+" + + +-- testing local function information +co = load[[ + local A = function () + return x + end + return +]] + +local a = 0 +-- 'A' should be visible to debugger only after its complete definition +debug.sethook(function (e, l) + if l == 3 then a = a + 1; assert(debug.getlocal(2, 1) == "(*temporary)") + elseif l == 4 then a = a + 1; assert(debug.getlocal(2, 1) == "A") + end +end, "l") +co() -- run local function definition +debug.sethook() -- turn off hook +assert(a == 2) -- ensure all two lines where hooked + +-- testing traceback + +assert(debug.traceback(print) == print) +assert(debug.traceback(print, 4) == print) +assert(string.find(debug.traceback("hi", 4), "^hi\n")) +assert(string.find(debug.traceback("hi"), "^hi\n")) +assert(not string.find(debug.traceback("hi"), "'debug.traceback'")) +assert(string.find(debug.traceback("hi", 0), "'debug.traceback'")) +assert(string.find(debug.traceback(), "^stack traceback:\n")) + +do -- C-function names in traceback + local st, msg = (function () return pcall end)()(debug.traceback) + assert(st == true and string.find(msg, "pcall")) +end + + +-- testing nparams, nups e isvararg +local t = debug.getinfo(print, "u") +assert(t.isvararg == true and t.nparams == 0 and t.nups == 0) + +t = debug.getinfo(function (a,b,c) end, "u") +assert(t.isvararg == false and t.nparams == 3 and t.nups == 0) + +t = debug.getinfo(function (a,b,...) return t[a] end, "u") +assert(t.isvararg == true and t.nparams == 2 and t.nups == 1) + +t = debug.getinfo(1) -- main +assert(t.isvararg == true and t.nparams == 0 and t.nups == 1 and + debug.getupvalue(t.func, 1) == "_ENV") + + + + +-- testing debugging of coroutines + +local function checktraceback (co, p, level) + local tb = debug.traceback(co, nil, level) + local i = 0 + for l in string.gmatch(tb, "[^\n]+\n?") do + assert(i == 0 or string.find(l, p[i])) + i = i+1 + end + assert(p[i] == undef) +end + + +local function f (n) + if n > 0 then f(n-1) + else coroutine.yield() end +end + +local co = coroutine.create(f) +coroutine.resume(co, 3) +checktraceback(co, {"yield", "db.lua", "db.lua", "db.lua", "db.lua"}) +checktraceback(co, {"db.lua", "db.lua", "db.lua", "db.lua"}, 1) +checktraceback(co, {"db.lua", "db.lua", "db.lua"}, 2) +checktraceback(co, {"db.lua"}, 4) +checktraceback(co, {}, 40) + + +co = coroutine.create(function (x) + local a = 1 + coroutine.yield(debug.getinfo(1, "l")) + coroutine.yield(debug.getinfo(1, "l").currentline) + return a + end) + +local tr = {} +local foo = function (e, l) if l then table.insert(tr, l) end end +debug.sethook(co, foo, "lcr") + +local _, l = coroutine.resume(co, 10) +local x = debug.getinfo(co, 1, "lfLS") +assert(x.currentline == l.currentline and x.activelines[x.currentline]) +assert(type(x.func) == "function") +for i=x.linedefined + 1, x.lastlinedefined do + assert(x.activelines[i]) + x.activelines[i] = undef +end +assert(next(x.activelines) == nil) -- no 'extra' elements +assert(not debug.getinfo(co, 2)) +local a,b = debug.getlocal(co, 1, 1) +assert(a == "x" and b == 10) +a,b = debug.getlocal(co, 1, 2) +assert(a == "a" and b == 1) +debug.setlocal(co, 1, 2, "hi") +assert(debug.gethook(co) == foo) +assert(#tr == 2 and + tr[1] == l.currentline-1 and tr[2] == l.currentline) + +a,b,c = pcall(coroutine.resume, co) +assert(a and b and c == l.currentline+1) +checktraceback(co, {"yield", "in function <"}) + +a,b = coroutine.resume(co) +assert(a and b == "hi") +assert(#tr == 4 and tr[4] == l.currentline+2) +assert(debug.gethook(co) == foo) +assert(not debug.gethook()) +checktraceback(co, {}) + + +-- check get/setlocal in coroutines +co = coroutine.create(function (x) + local a, b = coroutine.yield(x) + assert(a == 100 and b == nil) + return x +end) +a, b = coroutine.resume(co, 10) +assert(a and b == 10) +a, b = debug.getlocal(co, 1, 1) +assert(a == "x" and b == 10) +assert(not debug.getlocal(co, 1, 5)) +assert(debug.setlocal(co, 1, 1, 30) == "x") +assert(not debug.setlocal(co, 1, 5, 40)) +a, b = coroutine.resume(co, 100) +assert(a and b == 30) + + +-- check traceback of suspended (or dead with error) coroutines + +function f(i) if i==0 then error(i) else coroutine.yield(); f(i-1) end end + +co = coroutine.create(function (x) f(x) end) +a, b = coroutine.resume(co, 3) +t = {"'coroutine.yield'", "'f'", "in function <"} +while coroutine.status(co) == "suspended" do + checktraceback(co, t) + a, b = coroutine.resume(co) + table.insert(t, 2, "'f'") -- one more recursive call to 'f' +end +t[1] = "'error'" +checktraceback(co, t) + + +-- test acessing line numbers of a coroutine from a resume inside +-- a C function (this is a known bug in Lua 5.0) + +local function g(x) + coroutine.yield(x) +end + +local function f (i) + debug.sethook(function () end, "l") + for j=1,1000 do + g(i+j) + end +end + +local co = coroutine.wrap(f) +co(10) +pcall(co) +pcall(co) + + +assert(type(debug.getregistry()) == "table") + + +-- test tagmethod information +local a = {} +local function f (t) + local info = debug.getinfo(1); + assert(info.namewhat == "metamethod") + a.op = info.name + return info.name +end +setmetatable(a, { + __index = f; __add = f; __div = f; __mod = f; __concat = f; __pow = f; + __mul = f; __idiv = f; __unm = f; __len = f; __sub = f; + __shl = f; __shr = f; __bor = f; __bxor = f; + __eq = f; __le = f; __lt = f; __unm = f; __len = f; __band = f; + __bnot = f; +}) + +local b = setmetatable({}, getmetatable(a)) + +assert(a[3] == "index" and a^3 == "pow" and a..a == "concat") +assert(a/3 == "div" and 3%a == "mod") +assert(a+3 == "add" and 3-a == "sub" and a*3 == "mul" and + -a == "unm" and #a == "len" and a&3 == "band") +assert(a|3 == "bor" and 3~a == "bxor" and a<<3 == "shift" and + a>>1 == "shift") +assert (a==b and a.op == "eq") +assert (a>=b and a.op == "order") +assert (a>b and a.op == "order") +assert(~a == "bnot") + +do -- testing for-iterator name + local function f() + assert(debug.getinfo(1).name == "for iterator") + end + + for i in f do end +end + + +do -- testing debug info for finalizers + local name = nil + + -- create a piece of garbage with a finalizer + setmetatable({}, {__gc = function () + local t = debug.getinfo(2) -- get callee information + assert(t.namewhat == "metamethod") + name = t.name + end}) + + -- repeat until previous finalizer runs (setting 'name') + repeat local a = {} until name + assert(name == "__gc") +end + + +do + print("testing traceback sizes") + + local function countlines (s) + return select(2, string.gsub(s, "\n", "")) + end + + local function deep (lvl, n) + if lvl == 0 then + return (debug.traceback("message", n)) + else + return (deep(lvl-1, n)) + end + end + + local function checkdeep (total, start) + local s = deep(total, start) + local rest = string.match(s, "^message\nstack traceback:\n(.*)$") + local cl = countlines(rest) + -- at most 10 lines in first part, 11 in second, plus '...' + assert(cl <= 10 + 11 + 1) + local brk = string.find(rest, "%.%.%.") + if brk then -- does message have '...'? + local rest1 = string.sub(rest, 1, brk) + local rest2 = string.sub(rest, brk, #rest) + assert(countlines(rest1) == 10 and countlines(rest2) == 11) + else + assert(cl == total - start + 2) + end + end + + for d = 1, 51, 10 do + for l = 1, d do + -- use coroutines to ensure complete control of the stack + coroutine.wrap(checkdeep)(d, l) + end + end + +end + + +print("testing debug functions on chunk without debug info") +prog = [[-- program to be loaded without debug information +local debug = require'debug' +local a = 12 -- a local variable + +local n, v = debug.getlocal(1, 1) +assert(n == "(*temporary)" and v == debug) -- unkown name but known value +n, v = debug.getlocal(1, 2) +assert(n == "(*temporary)" and v == 12) -- unkown name but known value + +-- a function with an upvalue +local f = function () local x; return a end +n, v = debug.getupvalue(f, 1) +assert(n == "(*no name)" and v == 12) +assert(debug.setupvalue(f, 1, 13) == "(*no name)") +assert(a == 13) + +local t = debug.getinfo(f) +assert(t.name == nil and t.linedefined > 0 and + t.lastlinedefined == t.linedefined and + t.short_src == "?") +assert(debug.getinfo(1).currentline == -1) + +t = debug.getinfo(f, "L").activelines +assert(next(t) == nil) -- active lines are empty + +-- dump/load a function without debug info +f = load(string.dump(f)) + +t = debug.getinfo(f) +assert(t.name == nil and t.linedefined > 0 and + t.lastlinedefined == t.linedefined and + t.short_src == "?") +assert(debug.getinfo(1).currentline == -1) + +return a +]] + + +-- load 'prog' without debug info +local f = assert(load(string.dump(load(prog), true))) + +assert(f() == 13) + +do -- tests for 'source' in binary dumps + local prog = [[ + return function (x) + return function (y) + return x + y + end + end + ]] + local name = string.rep("x", 1000) + local p = assert(load(prog, name)) + -- load 'p' as a binary chunk with debug information + local c = string.dump(p) + assert(#c > 1000 and #c < 2000) -- no repetition of 'source' in dump + local f = assert(load(c)) + local g = f() + local h = g(3) + assert(h(5) == 8) + assert(debug.getinfo(f).source == name and -- all functions have 'source' + debug.getinfo(g).source == name and + debug.getinfo(h).source == name) + -- again, without debug info + local c = string.dump(p, true) + assert(#c < 500) -- no 'source' in dump + local f = assert(load(c)) + local g = f() + local h = g(30) + assert(h(50) == 80) + assert(debug.getinfo(f).source == '=?' and -- no function has 'source' + debug.getinfo(g).source == '=?' and + debug.getinfo(h).source == '=?') +end + +print"OK" + |