EIP-7702 delegation designators.
A set-code transaction writes 0xef0100 || address as an authority's code.
From then on, calls to the authority (top-level and CALL, CALLCODE,
DELEGATECALL, STATICCALL) execute the code stored at address, while
EXTCODESIZE, EXTCODECOPY, and EXTCODEHASH still see the 23-byte designator.
Only one hop is followed: a designator that points at another designator
runs that designator as code.
Summary
Functions
Return the delegate address if code is exactly a delegation designator.
Build the designator code for address.
Return whether code is exactly a delegation designator.
Functions
@spec delegated_address(binary()) :: {:ok, non_neg_integer()} | :error
Return the delegate address if code is exactly a delegation designator.
Examples
iex> EEVM.Delegation.delegated_address(EEVM.Delegation.designator(0xBEEF))
{:ok, 0xBEEF}
iex> EEVM.Delegation.delegated_address(<<0x60, 0x00>>)
:error@spec designator(non_neg_integer()) :: binary()
Build the designator code for address.
Example
iex> EEVM.Delegation.designator(0x1234)
<<0xEF, 0x01, 0x00, 0::144, 0x12, 0x34>>Return whether code is exactly a delegation designator.