Struct Blueprint

pub struct Blueprint {
    pub erc_version: u8,
    pub preamble_data: Option<Vec<u8>>,
    pub initcode: Vec<u8>,
}

Parses the ERC-5202 bytecode container format for indexing blueprint contracts.

“A blueprint contract MUST use the preamble 0xFE71. 6 bits are allocated to the version, and 2 bits to the length encoding. The first version begins at 0 (0b000000), and versions increment by 1. The value 0b11 for is reserved. In the case that the length bits are 0b11, the third byte is considered a continuation byte (that is, the version requires multiple bytes to encode). The exact encoding of a multi-byte version is left to a future ERC. A blueprint contract MUST contain at least one byte of initcode. A blueprint contract MAY insert any bytes (data or code) between the version byte(s) and the initcode. If such variable length data is used, the preamble must be 0xFE71. The represent a number between 0 and 2 (inclusive) describing how many bytes takes, and is the big-endian encoding of the number of bytes that takes.”

“ERC-5202: Blueprint contract format,” Ethereum Improvement Proposals, no. 5202, June 2022. [Online serial]. Available: https://eips.ethereum.org/EIPS/eip-5202.

Fields

erc_version: u8

preamble_data: Option<Vec<u8>>

initcode: Vec<u8>

Trait Implementations

impl Clone for Blueprint

fn clone(&self) -> Blueprint

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Blueprint

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl PartialEq for Blueprint

fn eq(&self, other: &Blueprint) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for Blueprint

impl StructuralPartialEq for Blueprint