tc-chain-spec

Crates.iotc-chain-spec
lib.rstc-chain-spec
version2.0.0
sourcesrc
created_at2021-03-04 01:51:26.760547
updated_at2021-04-05 01:23:53.597067
descriptionTetcore chain configurations.
homepagehttps://core.tetcoin.org
repositoryhttps://github.com/tetcoin/tetcore
max_upload_size
id363511
size41,643
Marlon Hanks (marlonhanks)

documentation

https://docs.rs/tc-chain-spec

README

Tetcore chain configurations.

This crate contains structs and utilities to declare a runtime-specific configuration file (a.k.a chain spec).

Basic chain spec type containing all required parameters is ChainSpec. It can be extended with additional options that contain configuration specific to your chain. Usually the extension is going to be an amalgamate of types exposed by Tetcore core modules. To allow the core modules to retrieve their configuration from your extension you should use ChainSpecExtension macro exposed by this crate.

use std::collections::HashMap;
use tc_chain_spec::{GenericChainSpec, ChainSpecExtension};

#[derive(Clone, Debug, serde::Serialize, serde::Deserialize, ChainSpecExtension)]
pub struct MyExtension {
		pub known_blocks: HashMap<u64, String>,
}

pub type MyChainSpec<G> = GenericChainSpec<G, MyExtension>;

Some parameters may require different values depending on the current blockchain height (a.k.a. forks). You can use ChainSpecGroup macro and provided Forks structure to put such parameters to your chain spec. This will allow to override a single parameter starting at specific block number.

use tc_chain_spec::{Forks, ChainSpecGroup, ChainSpecExtension, GenericChainSpec};

#[derive(Clone, Debug, serde::Serialize, serde::Deserialize, ChainSpecGroup)]
pub struct ClientParams {
		max_block_size: usize,
		max_extrinsic_size: usize,
}

#[derive(Clone, Debug, serde::Serialize, serde::Deserialize, ChainSpecGroup)]
pub struct PoolParams {
		max_transaction_size: usize,
}

#[derive(Clone, Debug, serde::Serialize, serde::Deserialize, ChainSpecGroup, ChainSpecExtension)]
pub struct Extension {
		pub client: ClientParams,
		pub pool: PoolParams,
}

pub type BlockNumber = u64;

/// A chain spec supporting forkable `ClientParams`.
pub type MyChainSpec1<G> = GenericChainSpec<G, Forks<BlockNumber, ClientParams>>;

/// A chain spec supporting forkable `Extension`.
pub type MyChainSpec2<G> = GenericChainSpec<G, Forks<BlockNumber, Extension>>;

It's also possible to have a set of parameters that is allowed to change with block numbers (i.e. is forkable), and another set that is not subject to changes. This is also possible by declaring an extension that contains Forks within it.

use serde::{Serialize, Deserialize};
use tc_chain_spec::{Forks, GenericChainSpec, ChainSpecGroup, ChainSpecExtension};

#[derive(Clone, Debug, Serialize, Deserialize, ChainSpecGroup)]
pub struct ClientParams {
		max_block_size: usize,
		max_extrinsic_size: usize,
}

#[derive(Clone, Debug, Serialize, Deserialize, ChainSpecGroup)]
pub struct PoolParams {
		max_transaction_size: usize,
}

#[derive(Clone, Debug, Serialize, Deserialize, ChainSpecExtension)]
pub struct Extension {
		pub client: ClientParams,
		#[forks]
		pub pool: Forks<u64, PoolParams>,
}

pub type MyChainSpec<G> = GenericChainSpec<G, Extension>;

License: GPL-3.0-or-later WITH Classpath-exception-2.0

Commit count: 5279

cargo fmt