starcoin-framework

Module 0x1::ChainId

The module provides chain id information.

• Resource ChainId
• Constants
• Function initialize
• Function get
• Function is_dev
• Function is_test
• Function is_halley
• Function is_proxima
• Function is_barnard
• Function is_main
• Module Specification

use 0x1::CoreAddresses;
use 0x1::Timestamp;

Resource ChainId

chain id data structure.

struct ChainId has key

Fields

id: u8

real id.

Constants

const BARNARD_CHAIN_ID: u8 = 251;

const DEV_CHAIN_ID: u8 = 254;

const HALLEY_CHAIN_ID: u8 = 253;

const MAIN_CHAIN_ID: u8 = 1;

const PROXIMA_CHAIN_ID: u8 = 252;

const TEST_CHAIN_ID: u8 = 255;

Function initialize

Publish the chain ID under the genesis account

public fun initialize(account: &signer, id: u8)

Implementation

public fun initialize(account: &signer, id: u8) {
    Timestamp::assert_genesis();
    CoreAddresses::assert_genesis_address(account);
    move_to(account, ChainId { id });
}

Specification

aborts_if !Timestamp::is_genesis();
aborts_if Signer::address_of(account) != CoreAddresses::GENESIS_ADDRESS();
aborts_if exists<ChainId>(Signer::address_of(account));
ensures exists<ChainId>(Signer::address_of(account));

Function get

Return the chain ID of this chain

public fun get(): u8

Implementation

public fun get(): u8 acquires ChainId {
    borrow_global<ChainId>(CoreAddresses::GENESIS_ADDRESS()).id
}

Specification

aborts_if !exists<ChainId>(CoreAddresses::GENESIS_ADDRESS());
ensures exists<ChainId>(CoreAddresses::GENESIS_ADDRESS());

Function is_dev

public fun is_dev(): bool

Implementation

public fun is_dev(): bool acquires ChainId {
    get() == DEV_CHAIN_ID
}

Specification

aborts_if !exists<ChainId>(CoreAddresses::GENESIS_ADDRESS());
ensures exists<ChainId>(CoreAddresses::GENESIS_ADDRESS());

Function is_test

public fun is_test(): bool

Implementation

public fun is_test(): bool acquires ChainId {
    get() == TEST_CHAIN_ID
}

Specification

aborts_if !exists<ChainId>(CoreAddresses::GENESIS_ADDRESS());
ensures exists<ChainId>(CoreAddresses::GENESIS_ADDRESS());

Function is_halley

public fun is_halley(): bool

Implementation

public fun is_halley(): bool acquires ChainId {
    get() == HALLEY_CHAIN_ID
}

Specification

aborts_if !exists<ChainId>(CoreAddresses::GENESIS_ADDRESS());
ensures exists<ChainId>(CoreAddresses::GENESIS_ADDRESS());

Function is_proxima

public fun is_proxima(): bool

Implementation

public fun is_proxima(): bool acquires ChainId {
    get() == PROXIMA_CHAIN_ID
}

Specification

aborts_if !exists<ChainId>(CoreAddresses::GENESIS_ADDRESS());
ensures exists<ChainId>(CoreAddresses::GENESIS_ADDRESS());

Function is_barnard

public fun is_barnard(): bool

Implementation

public fun is_barnard(): bool acquires ChainId {
    get() == BARNARD_CHAIN_ID
}

Specification

aborts_if !exists<ChainId>(CoreAddresses::GENESIS_ADDRESS());
ensures exists<ChainId>(CoreAddresses::GENESIS_ADDRESS());

Function is_main

public fun is_main(): bool

Implementation

public fun is_main(): bool acquires ChainId {
    get() == MAIN_CHAIN_ID
}

Specification

aborts_if !exists<ChainId>(CoreAddresses::GENESIS_ADDRESS());
ensures exists<ChainId>(CoreAddresses::GENESIS_ADDRESS());

Module Specification

pragma verify;
pragma aborts_if_is_strict;

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