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Introduce `EEVM.Block.Processor` plus the supporting `Header`, `Receipt`,
and `BlockResult` value structs. The processor runs a block end-to-end:
1. Reject the block when `sum(tx.gas_limit) > header.gas_limit`.
2. Apply any `:system_calls` hooks against the pre-state DB (this is
where EIP-4788 / EIP-2935 plug in once their PRs land).
3. Fold transactions through an injected `:tx_executor`, accumulating
receipts whose `cumulative_gas_used` is the running total. First
`{:error, _}` halts and reports the failing index.
4. Compute `state_root`, `receipts_root`, `transactions_root`,
`logs_bloom`, and total `gas_used` into a `BlockResult`.
The transaction executor and system-call hooks are dependency-injected
rather than aliased so this PR can ship independently of #81 / #82 / #83;
once those land a follow-up will wire in real defaults.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
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Summary
EEVM.Block.Processor.process_block/4, which runs a block end-to-end: pre-flight gas-limit check → system-call hooks → transaction fold with cumulative-gas tracking → root/bloom commitments.EEVM.Block.Header,EEVM.Block.Receipt, andEEVM.BlockResultfor the inputs and outputs.state_root,receipts_root,transactions_root,logs_bloom, and totalgas_usedto match what an external verifier would check against the advertised header.Notes
:tx_executor(3-arity fn) and an optional:system_callslist. A follow-up will wire in real defaults once those PRs land.{:error, reason}from the executor halts the fold and surfaces{:error, {:tx_failed, index, reason}}— no optimistic rollback.[status, cumulativeGasUsed, bloom, logs].Closes #86.
Test plan
mix format --check-formattedmix compile --warnings-as-errorsmix credo --strictmix test(571 tests, 0 failures; 14 new intest/block/processor_test.exs):tx_executorand system-call hooks once Implement transaction execution pipeline #83 / Implement historical block hashes contract (EIP-2935) #81 / Implement beacon block root contract (EIP-4788) #82 merge🤖 Generated with Claude Code