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-rw-r--r--testes/locals.lua22
1 files changed, 22 insertions, 0 deletions
diff --git a/testes/locals.lua b/testes/locals.lua
index 62a88df5..ddb75054 100644
--- a/testes/locals.lua
+++ b/testes/locals.lua
@@ -592,6 +592,28 @@ end
if rawget(_G, "T") then
+ do
+ -- bug in 5.4.3
+ -- 'lua_settop' may use a pointer to stack invalidated by 'luaF_close'
+
+ -- reduce stack size
+ collectgarbage(); collectgarbage(); collectgarbage()
+
+ -- force a stack reallocation
+ local function loop (n)
+ if n < 400 then loop(n + 1) end
+ end
+
+ -- close metamethod will reallocate the stack
+ local o = setmetatable({}, {__close = function () loop(0) end})
+
+ local script = [[toclose 2; settop 1; return 1]]
+
+ assert(T.testC(script, o) == script)
+
+ end
+
+
-- memory error inside closing function
local function foo ()
local y <close> = func2close(function () T.alloccount() end)