EthAbi

This is an Elm implementation of the Ethereum ABI Encoding/Decoding procedures.

It strives to be:

• Correct, adhering to the Solidity ABI Encoding/Decoding Specification
• Feature complete.
• Intuitive to use.
• Type-safe.
• Not care about anything else of Ethereum, or how we might talk with a Blockchain. This library handles the ABI-part only, and could be integrated in any library that needs this

Progress

• Types (for types that do not map 1:1 to Elm types)

  • int256
  • runtime-selectable int size encoder.
  • wrappers for all available int types.
  • uint256
  • runtime-selectable uint size encoder.
  • wrappers for all available uint types.
  • bytes32
  • static_bytes where you pass in the length.
  • wrappers for all available static bytes types.
  • bytes
  • Hexstring, the type of encoded hexadecimal strings that represent bytes (which are the output of the Encoder and input of the Decoder)

• Encoding

  • Main encoding function encode.
  • int256
  • uint256
  • bool
  • bytes32
  • bytes
  • string
  • Tuples
  • Arrays of static size (that properly switch between static and dynamic locations based on element type!)
  • Arrays with dynamic size

• Decoding

  • Main decoding function decodeHexstring
  • map
  • map2
  • apply
  • andThen
  • succeed
  • fail
  • int256
  • uint256
  • bool
  • bytes32
  • static_bytes where you pass in the length.
  • Arrays of static size (that properly switch between static and dynamic body locations based on element type!) -- WIP!!
  • Arrays of dynamic size
  • Tuples, by using map, map2 and apply.

• Other

  • Possibility to create function signature from given encoder types and function name.

• Tests