File size: 4,431 Bytes
1e94262 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 | -- $Id: testes/heavy.lua,v $
-- See Copyright Notice in file lua.h
local function teststring ()
print("creating a string too long")
do
local a = "x"
local st, msg = pcall(function ()
while true do
a = a .. a.. a.. a.. a.. a.. a.. a.. a.. a
.. a .. a.. a.. a.. a.. a.. a.. a.. a.. a
.. a .. a.. a.. a.. a.. a.. a.. a.. a.. a
.. a .. a.. a.. a.. a.. a.. a.. a.. a.. a
.. a .. a.. a.. a.. a.. a.. a.. a.. a.. a
.. a .. a.. a.. a.. a.. a.. a.. a.. a.. a
.. a .. a.. a.. a.. a.. a.. a.. a.. a.. a
.. a .. a.. a.. a.. a.. a.. a.. a.. a.. a
.. a .. a.. a.. a.. a.. a.. a.. a.. a.. a
.. a .. a.. a.. a.. a.. a.. a.. a.. a.. a
print(string.format("string with %d bytes", #a))
end
end)
assert(not st and
(string.find(msg, "string length overflow") or
string.find(msg, "not enough memory")))
print("string length overflow with " .. #a * 100)
end
print('+')
end
local function loadrep (x, what)
local p = 1<<20
local s = string.rep(x, p)
local count = 0
local function f()
count = count + p
if count % (0x80*p) == 0 then
io.stderr:write("(", count // 2^20, " M)")
end
return s
end
local st, msg = load(f, "=big")
print("\nmemory: ", collectgarbage'count' * 1024)
msg = string.match(msg, "^[^\n]+") -- get only first line
print(string.format("total: 0x%x %s ('%s')", count, what, msg))
return st, msg
end
function controlstruct ()
print("control structure too long")
local lim = ((1 << 24) - 2) // 3
local s = string.rep("a = a + 1\n", lim)
s = "while true do " .. s .. "end"
assert(load(s))
print("ok with " .. lim .. " lines")
lim = lim + 3
s = string.rep("a = a + 1\n", lim)
s = "while true do " .. s .. "end"
local st, msg = load(s)
assert(not st and string.find(msg, "too long"))
print(msg)
end
function manylines ()
print("loading chunk with too many lines")
local st, msg = loadrep("\n", "lines")
assert(not st and string.find(msg, "too many lines"))
print('+')
end
function hugeid ()
print("loading chunk with huge identifier")
local st, msg = loadrep("a", "chars")
assert(not st and
(string.find(msg, "lexical element too long") or
string.find(msg, "not enough memory")))
print('+')
end
function toomanyinst ()
print("loading chunk with too many instructions")
local st, msg = loadrep("a = 10; ", "instructions")
print('+')
end
local function loadrepfunc (prefix, f)
local count = -1
local function aux ()
count = count + 1
if count == 0 then
return prefix
else
if count % (0x100000) == 0 then
io.stderr:write("(", count // 2^20, " M)")
end
return f(count)
end
end
local st, msg = load(aux, "k")
print("\nmemory: ", collectgarbage'count' * 1024)
msg = string.match(msg, "^[^\n]+") -- get only first line
print("expected error: ", msg)
end
function toomanyconst ()
print("loading function with too many constants")
loadrepfunc("function foo () return {0,",
function (n)
-- convert 'n' to a string in the format [["...",]],
-- where '...' is a kind of number in base 128
-- (in a range that does not include either the double quote
-- and the escape.)
return string.char(34,
((n // 128^0) & 127) + 128,
((n // 128^1) & 127) + 128,
((n // 128^2) & 127) + 128,
((n // 128^3) & 127) + 128,
((n // 128^4) & 127) + 128,
34, 44)
end)
end
function toomanystr ()
local a = {}
local st, msg = pcall(function ()
for i = 1, math.huge do
if i % (0x100000) == 0 then
io.stderr:write("(", i // 2^20, " M)")
end
a[i] = string.pack("I", i)
end
end)
local size = #a
a = collectgarbage'count'
print("\nmemory:", a * 1024)
print("expected error:", msg)
print("size:", size)
end
function toomanyidx ()
local a = {}
local st, msg = pcall(function ()
for i = 1, math.huge do
if i % (0x100000) == 0 then
io.stderr:write("(", i // 2^20, " M)")
end
a[i] = i
end
end)
print("\nmemory: ", collectgarbage'count' * 1024)
print("expected error: ", msg)
print("size:", #a)
end
-- teststring()
-- controlstruct()
-- manylines()
-- hugeid()
-- toomanyinst()
-- toomanyconst()
-- toomanystr()
toomanyidx()
print "OK"
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