nim-rlp/rlp/object_serialization.nim

23 lines
603 B
Nim

import macros
template enumerateRlpFields*[T](x: T, op: untyped) =
for f in fields(x): op(f)
macro rlpFields*(T: typedesc, fields: varargs[untyped]): untyped =
var body = newStmtList()
let
ins = genSym(nskParam, "instance")
op = genSym(nskParam, "op")
for field in fields:
body.add quote do: `op`(`ins`.`field`)
result = quote do:
template enumerateRlpFields*(`ins`: `T`, `op`: untyped) {.inject.} =
`body`
template rlpInline* {.pragma.}
## This can be specified on a record field in order to avoid the
## default behavior of wrapping the record in a RLP list.