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bug report of AS 2.13.0
Author
the following codes:
uint8 search_no(uint8[]@ cmd, uint16 len, uint8[] @rcv) //mbno is nx5 array, static
{
if (@rcv == null) print("null pointer");
return(255);
}
void main()
{
uint8[] cmd = { 0x02, 0x95, 0x45, 0x42, 0x32 };
uint8[] rcv;
uint16 len = 8;
search_no(cmd, cmd.length(), rcv); //This is OK! @rcv won't be null
search_no(cmd, GET_LEN2(cmd), rcv); //This is OK!
uint16 len = GET_LEN(cmd);
search_no(cmd, len, rcv); //This is OK!
//but
search_no(cmd, GET_LEN(cmd), rcv); //@rcv is null
}
uint16 GET_LEN(uint8[]@ cmd)
{
return cmd[0]+3;
}
uint16 GET_LEN2(uint8[] cmd)
{
return cmd[0]+3;
}
it seems that, the reference release operation or the calling stack has bug.
Thanks for the bug report. I'll look into this a.s.a.p. It looks like it could be a problem with a temporary variable being reused too soon while evaluating the arguments.
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