rust-velocypack

Rust implementation of the VelocyPack protocol used by ArangoDB that uses serde for serialization/deserialization.

Status

Currently a very early work in progress, with partial implementations of both serialization and deserialization, with little to no documentation.

Currently (de)serialization for the following types has been implemented (✓ = implemented, blank = not implemented yet, ✗ = no implementation planned yet):

Serialize  Deserialize  Value type
✗          ✗            0x00 : none
✓                       0x01 : empty array
✓                       0x02 : array without index table, 1-byte byte length
✓                       0x03 : array without index table, 2-byte byte length
✓                       0x04 : array without index table, 4-byte byte length
✓                       0x05 : array without index table, 8-byte byte length
✓                       0x06 : array with 1-byte index table offsets, bytelen and # subvals
✓                       0x07 : array with 2-byte index table offsets, bytelen and # subvals
✓                       0x08 : array with 4-byte index table offsets, bytelen and # subvals
✓                       0x09 : array with 8-byte index table offsets, bytelen and # subvals
✓                       0x0a : empty object
✓                       0x0b : object with 1-byte index table offsets, sorted by attribute name, 1-byte bytelen and # subvals
✓                       0x0c : object with 2-byte index table offsets, sorted by attribute name, 2-byte bytelen and # subvals
✓                       0x0d : object with 4-byte index table offsets, sorted by attribute name, 4-byte bytelen and # subvals
✓                       0x0e : object with 8-byte index table offsets, sorted by attribute name, 8-byte bytelen and # subvals
✗                       0x0f : object with 1-byte index table offsets, not sorted by attribute name, 1-byte bytelen and # subvals
✗                       0x10 : object with 2-byte index table offsets, not sorted by attribute name, 2-byte bytelen and # subvals
✗                       0x11 : object with 4-byte index table offsets, not sorted by attribute name, 4-byte bytelen and # subvals
✗                       0x12 : object with 8-byte index table offsets, not sorted by attribute name, 8-byte bytelen and # subvals
✗                       0x13 : compact array, no index table
✗                       0x14 : compact object, no index table
✗          ✗            0x15-0x16 : reserved
✗          ✗            0x17 : illegal
✓          ✓            0x18 : null
✓          ✓            0x19 : false
✓          ✓            0x1a : true
✓          ✓            0x1b : double IEEE-754
                        0x1c : UTC-date
✗          ✗            0x1d : external (only in memory)
✗          ✗            0x1e : minKey
✗          ✗            0x1f : maxKey
✓          ✓            0x20-0x27 : signed int
✓          ✓            0x28-0x2f : uint
✓          ✓            0x30-0x39 : small integers
✓          ✓            0x3a-0x3f : small negative integers
✓                       0x40-0xbe : UTF-8-string
✓                       0xbf : long UTF-8-string
✓                       0xc0-0xc7 : binary blob
✗          ✗            0xc8-0xcf : positive long packed BCD-encoded float
✗          ✗            0xd0-0xd7 : negative long packed BCD-encoded float
✗          ✗            0xd8-0xef : reserved
✗          ✗            0xf0-0xff : custom types