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implement rlp.read for arrays

This commit is contained in:
Zahary Karadjov 2018-04-01 05:01:56 +03:00
parent f903ad8bff
commit 09718bb5c3
1 changed files with 32 additions and 5 deletions
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37
rlp.nim
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@ -275,14 +275,41 @@ proc read*(rlp: var Rlp, T: typedesc[enum]): T =
result = T(rlp.toInt(int))
rlp.skipElem
proc read*[R, E](rlp: var Rlp, T: type array[R, E]): T =
when E is byte:
if not rlp.isBlob:
raise newException(BadCastError, "The source RLP is not a blob.")
var bytes = rlp.toBytes
if result.len != bytes.len:
raise newException(BadCastError, "The source RLP has incorrect size")
copyMem(addr result[0], bytes.baseAddr, bytes.len)
else:
if not rlp.isList:
raise newException(BadCastError, "The source RLP is not a list.")
if result.len != rlp.listLen:
raise newException(BadCastError, "The source RLP has incorrect size")
var i = 0
for elem in rlp:
result[i] = rlp.read(E)
inc i
proc read*[E](rlp: var Rlp, T: typedesc[seq[E]]): T =
if not rlp.isList:
raise newException(BadCastError, "The source RLP is not a list.")
when E is byte:
var bytes = rlp.toBytes
result = newSeq[byte](bytes.len)
copyMem(addr result[0], bytes.baseAddr, bytes.len)
else:
if not rlp.isList:
raise newException(BadCastError, "The source RLP is not a list.")
result = newSeqOfCap[E](rlp.listLen)
result = newSeqOfCap[E](rlp.listLen)
for elem in rlp:
result.add rlp.read(E)
for elem in rlp:
result.add rlp.read(E)
proc read*(rlp: var Rlp, T: typedesc[object|tuple],
wrappedInList = wrapObjectsInList): T =