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.
```rust use std::collections::HashMap; use tcchainspec::{GenericChainSpec, ChainSpecExtension};
pub struct MyExtension {
pub known_blocks: HashMap
pub type MyChainSpec
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.
```rust use tcchainspec::{Forks, ChainSpecGroup, ChainSpecExtension, GenericChainSpec};
pub struct ClientParams { maxblocksize: usize, maxextrinsicsize: usize, }
pub struct PoolParams { maxtransactionsize: usize, }
pub struct Extension { pub client: ClientParams, pub pool: PoolParams, }
pub type BlockNumber = u64;
/// A chain spec supporting forkable ClientParams
.
pub type MyChainSpec1
/// A chain spec supporting forkable Extension
.
pub type MyChainSpec2
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.
```rust use serde::{Serialize, Deserialize}; use tcchainspec::{Forks, GenericChainSpec, ChainSpecGroup, ChainSpecExtension};
pub struct ClientParams { maxblocksize: usize, maxextrinsicsize: usize, }
pub struct PoolParams { maxtransactionsize: usize, }
pub struct Extension {
pub client: ClientParams,
#[forks]
pub pool: Forks
pub type MyChainSpec
License: GPL-3.0-or-later WITH Classpath-exception-2.0