2 releases
0.1.2 | Jun 11, 2019 |
---|---|
0.1.1 | Jun 10, 2019 |
#5 in #ewasm
18KB
463 lines
sszt
A human-readable serialization of ssz.
Format
The sszt
engine is written as a Serde deserializer for the recursive SsztValue
enum and should
be easily modified to support most formats supported by Serde.
Two major formats are currently supported:
- JSON
- YAML
The biggest deviations from the JSON / YAML specifications are appending the integer type at the end of the number using a string and declaring the type array (list / vector) in the first element.
Type | Representation |
---|---|
null | null |
bool | true | false |
number | "N:{u8|u16|u32|u64|u128|u256}" |
string | "string" |
vector (fixed length) | ["vector", "0:u8", "1:u8"] |
list (variable length) | ["list", "0:u8", "1:u8"] |
object | { "key1": "123:u32", "key2": ["vector", "456:u32"] } |
Examples
{
"new_messages": [
"list",
{
"timestamp": "1:u64",
"message": "0:u256"
},
{
"timestamp": "2:u64",
"message": "454086624460063511464984254936031011189294057512315937409637584344757371137:u256"
}
],
"state": {
"messages": ["list"]
}
}
ssz encoding: 5c0000005000000001000000000000000000000000000000000000000000000000000000000000000000000000000000020000000000000000010101010101010101010101010101010101010101010101010101010101010400000000000000
--
{
"messages": [
"list",
{
"timestamp": "1:u64",
"message": "0:u256"
},
{
"timestamp": "2:u64",
"message": "454086624460063511464984254936031011189294057512315937409637584344757371137:u256"
}
]
}
ssz encoding: 5c0000005000000001000000000000000000000000000000000000000000000000000000000000000000000000000000020000000000000001010101010101010101010101010101010101010101010101010101010101010400000000000000
--
{
"fixed": [
"vector",
["vector", "0:u8"],
["vector", "1:u8"],
["vector", "2:u8"],
["vector", "3:u8"],
["vector", "4:u8"]
],
"other": {
"a": {
"b": {
"c": {
"d": [
"vector",
"16:u16"
]
}
}
},
"b": "32:u32"
}
}
ssz encoding: 0001020304100020000000
Maintainer
License
Apache 2.0
Dependencies
~2.5–3.5MB
~71K SLoC