sc-block-builder: Remove BlockBuilderProvider (#2099)

The `BlockBuilderProvider` was a trait that was defined in
`sc-block-builder`. The trait was implemented for `Client`. This
basically meant that you needed to import `sc-block-builder` any way to
have access to the block builder. So, this trait was not providing any
real value. This pull request is removing the said trait. Instead of the
trait it introduces a builder for creating a `BlockBuilder`. The builder
currently has the quite fabulous name `BlockBuilderBuilder` (I'm open to
any better name 😅). The rest of the pull request is about
replacing the old trait with the new builder.

# Downstream code changes

If you used `new_block` or `new_block_at` before you now need to switch
it over to the new `BlockBuilderBuilder` pattern:

```rust
// `new` requires a type that implements `CallApiAt`. 
let mut block_builder = BlockBuilderBuilder::new(client)
                // Then you need to specify the hash of the parent block the block will be build on top of
		.on_parent_block(at)
                // The block builder also needs the block number of the parent block. 
                // Here it is fetched from the given `client` using the `HeaderBackend`
                // However, there also exists `with_parent_block_number` for directly passing the number
		.fetch_parent_block_number(client)
		.unwrap()
                // Enable proof recording if required. This call is optional.
		.enable_proof_recording()
                // Pass the digests. This call is optional.
                .with_inherent_digests(digests)
		.build()
		.expect("Creates new block builder");
```

---------

Co-authored-by: Sebastian Kunert <skunert49@gmail.com>
Co-authored-by: command-bot <>
This commit is contained in:
Bastian Köcher
2023-11-03 19:06:31 +01:00
committed by GitHub
parent cd2d5d2579
commit ca5f10567a
49 changed files with 1808 additions and 737 deletions
+8 -3
View File
@@ -39,8 +39,8 @@ use kitchensink_runtime::{
RuntimeCall, Signature, SystemCall, UncheckedExtrinsic,
};
use node_primitives::Block;
use sc_block_builder::BlockBuilderProvider;
use sc_client_api::execution_extensions::ExecutionExtensions;
use sc_block_builder::BlockBuilderBuilder;
use sc_client_api::{execution_extensions::ExecutionExtensions, UsageProvider};
use sc_client_db::PruningMode;
use sc_consensus::{BlockImport, BlockImportParams, ForkChoiceStrategy, ImportResult, ImportedAux};
use sc_executor::{NativeElseWasmExecutor, WasmExecutionMethod, WasmtimeInstantiationStrategy};
@@ -455,8 +455,13 @@ impl BenchDb {
/// Generate new block using this database.
pub fn generate_block(&mut self, content: BlockContent) -> Block {
let client = self.client();
let chain = client.usage_info().chain;
let mut block = client.new_block(Default::default()).expect("Block creation failed");
let mut block = BlockBuilderBuilder::new(&client)
.on_parent_block(chain.best_hash)
.with_parent_block_number(chain.best_number)
.build()
.expect("Failed to create block builder.");
for extrinsic in self.generate_inherents(&client) {
block.push(extrinsic).expect("Push inherent failed");