Module utils

Common Ethereum utilities.

Structs

• Keccak256
  Simple Keccak-256 hasher.
• Unit
  Ethereum unit. Always less than 77.

Enums

• ParseUnits
  This enum holds the numeric types that a possible to be returned by parse_units and that are taken by format_units.
• UnitsError
  Error type for Unit-related operations.

Constants

• EIP191_PREFIX
  The prefix used for hashing messages according to EIP-191.

Functions

• box_try_new
  Allocates memory on the heap then places x into it, returning an error if the allocation fails.
• box_try_new_uninit
  Constructs a new box with uninitialized contents on the heap, returning an error if the allocation fails.
• eip191_hash_message
  Hash a message according to EIP-191 (version 0x01).
• eip191_message
  Constructs a message according to EIP-191 (version 0x01).
• format_ether
  Formats the given number of Wei as an Ether amount.
• format_units
  Formats the given number of Wei as the given unit.
• keccak256
  Simple interface to the Keccak-256 hash function.
• parse_ether
  Converts the input to a U256 and converts from Ether to Wei.
• parse_units
  Parses a decimal number and multiplies it with 10^units.
• try_collect_vec
  Tries to collect the elements of an iterator into a Vec.
• vec_try_with_capacity
  Tries to create a Vec with the given capacity.