rpn: eliminate duplicated prefixMode state between RPN and Operations

Remove the prefixMode field from the RPN struct; it was duplicated from
Operations where it is actually used. Add GetPrefixMode to the Operator
interface so RPN can delegate both GetPrefixMode and SetPrefixMode to the
Operations instance behind the interface.

In rpn_parse.go evaluate(), drop the direct r.prefixMode = IEC/SI writes
and the now-unnecessary lock ordering comment; only r.ops.SetPrefixMode()
remains.

0 files changed, 0 insertions, 0 deletions