Bug: Wrong code generation in bitwise operations

This commit is contained in:
Roberto Ierusalimschy
2022-04-25 14:42:51 -03:00
parent 295cde9454
commit c764ca71a6
3 changed files with 42 additions and 6 deletions

View File

@@ -103,6 +103,31 @@ do -- test old bug (first name could not be an `upvalue')
local a; function f(x) x={a=1}; x={x=1}; x={G=1} end
end
do -- bug since 5.4.0
-- create code with a table using more than 256 constants
local code = {"local x = {"}
for i = 1, 257 do
code[#code + 1] = i .. ".1,"
end
code[#code + 1] = "};"
code = table.concat(code)
-- add "ret" to the end of that code and checks that
-- it produces the expected value "val"
local function check (ret, val)
local code = code .. ret
code = load(code)
assert(code() == val)
end
check("return (1 ~ (2 or 3))", 1 ~ 2)
check("return (1 | (2 or 3))", 1 | 2)
check("return (1 + (2 or 3))", 1 + 2)
check("return (1 << (2 or 3))", 1 << 2)
end
function f (i)
if type(i) ~= 'number' then return i,'jojo'; end;
if i > 0 then return i, f(i-1); end;