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Remove int as per discussions, update implementations

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NatoliChris 2018-10-02 09:41:18 +10:00
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specs/simpleserialize.md
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@ -15,13 +15,13 @@ deserializing objects and data types.
* [Constants](#constants) * [Constants](#constants)
* [Overview](#overview) * [Overview](#overview)
+ [Serialize/Encode](#serializeencode) + [Serialize/Encode](#serializeencode)
- [int/uint: 8/16/24/32/64/256](#intuint-816243264256) - [uint: 8/16/24/32/64/256](#uint-816243264256)
- [Address](#address) - [Address](#address)
- [Hash32](#hash32) - [Hash32](#hash32)
- [Bytes](#bytes) - [Bytes](#bytes)
- [List](#list) - [List](#list)
+ [Deserialize/Decode](#deserializedecode) + [Deserialize/Decode](#deserializedecode)
- [int/uint: 8/16/24/32/64/256](#intuint-816243264256-1) - [uint: 8/16/24/32/64/256](#uint-816243264256-1)
- [Address](#address-1) - [Address](#address-1)
- [Hash32](#hash32-1) - [Hash32](#hash32-1)
- [Bytes](#bytes-1) - [Bytes](#bytes-1)
@ -59,7 +59,7 @@ overhead.
### Serialize/Encode ### Serialize/Encode
#### int/uint: 8/16/24/32/64/256 #### uint: 8/16/24/32/64/256
Convert directly to bytes the size of the int. (e.g. ``uint16 = 2 bytes``) Convert directly to bytes the size of the int. (e.g. ``uint16 = 2 bytes``)
@ -150,7 +150,7 @@ At each step, the following checks should be made:
|:-------------------------|:----------------------------------------------------------| |:-------------------------|:----------------------------------------------------------|
| Ensure sufficient length | ``length(rawbytes) > current_index + deserialize_length`` | | Ensure sufficient length | ``length(rawbytes) > current_index + deserialize_length`` |
#### int/uint: 8/16/24/32/64/256 #### uint: 8/16/24/32/64/256
Convert directly from bytes into integer utilising the number of bytes the same Convert directly from bytes into integer utilising the number of bytes the same
size as the integer length. (e.g. ``uint16 == 2 bytes``) size as the integer length. (e.g. ``uint16 == 2 bytes``)
@ -193,9 +193,9 @@ return rawbytes[current_index+4:current_index+4+bytes_length], new_index
#### List #### List
Deserailize each object in the list. Deserialize each object in the list.
1. Get the length of the serialized list. 1. Get the length of the serialized list.
2. Loop through deseralizing each item in the list until you reach the 2. Loop through deserializing each item in the list until you reach the
entire length of the list. entire length of the list.
@ -219,7 +219,8 @@ return deserialized_list, new_index
## Implementations ## Implementations
| Language | Implementation | Description | | Language | Implementation | Description |
|:--------:|--------------------------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------| |:--------:|--------------------------------------------------------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------|
| Python | [ https://github.com/ethereum/beacon_chain/blob/master/ssz/ssz.py ](https://github.com/ethereum/beacon_chain/blob/master/ssz/ssz.py) | Beacon chain reference implementation written in Python. | | Python | [ https://github.com/ethereum/beacon_chain/blob/master/ssz/ssz.py ](https://github.com/ethereum/beacon_chain/blob/master/ssz/ssz.py) | Beacon chain reference implementation written in Python. |
| Rust | [ https://github.com/sigp/lighthouse/tree/master/ssz ](https://github.com/sigp/lighthouse/tree/master/ssz) | Lighthouse (Rust Ethereum 2.0 Node) maintained SimpleSerialize. | | Rust | [ https://github.com/sigp/lighthouse/tree/master/ssz ](https://github.com/sigp/lighthouse/tree/master/ssz) | Lighthouse (Rust Ethereum 2.0 Node) maintained SimpleSerialize. |
| Nim | [ https://github.com/status-im/nim-beacon-chain/blob/master/beacon_chain/ssz.nim ](https://github.com/status-im/nim-beacon-chain/blob/master/beacon_chain/ssz.nim) | Nim Implemetnation maintained SimpleSerialize. |
| Rust | [ https://github.com/paritytech/shasper/tree/master/util/ssz ](https://github.com/paritytech/shasper/tree/master/util/ssz) | Shasper implementation of SSZ maintained by ParityTech. |