feat: std feature flag for alloy-consensus

README.md

@@ -107,6 +107,7 @@ The following crates support `no_std`:
 - alloy-eips
 - alloy-genesis
 - alloy-serde
+- alloy-consensus
 
 If you would like to add `no_std` support to a crate, please make sure to update
 `scripts/check_no_std.sh` as well.

crates/alloy/Cargo.toml

@@ -68,6 +68,7 @@ std = [
     "alloy-eips?/std",
     "alloy-genesis?/std",
     "alloy-serde?/std",
+    "alloy-consensus?/std",
 ]
 
 # configuration

crates/consensus/Cargo.toml

@@ -17,11 +17,11 @@ alloy-rlp.workspace = true
 alloy-eips.workspace = true
 alloy-serde = { workspace = true, optional = true }
 
-sha2 = "0.10"
+sha2 = { version = "0.10", default-features = false }
 
 # kzg
 thiserror = { workspace = true, optional = true }
-c-kzg = { workspace = true, features = ["std", "serde"], optional = true }
+c-kzg = { workspace = true, features = ["serde"], optional = true }
 
 # arbitrary
 arbitrary = { workspace = true, features = ["derive"], optional = true }
@@ -37,7 +37,9 @@ tokio = { workspace = true, features = ["macros"] }
 serde_json.workspace = true
 
 [features]
+default = ["std"]
+std = ["alloy-eips/std", "sha2/std", "c-kzg?/std"]
 k256 = ["alloy-primitives/k256"]
-kzg = ["dep:c-kzg", "dep:thiserror", "alloy-eips/kzg"]
-arbitrary = ["dep:arbitrary", "alloy-eips/arbitrary"]
+kzg = ["dep:c-kzg", "dep:thiserror", "alloy-eips/kzg", "std"]
+arbitrary = ["std", "dep:arbitrary", "alloy-eips/arbitrary"]
 serde = ["dep:serde", "alloy-primitives/serde", "dep:alloy-serde", "alloy-eips/serde"]

crates/consensus/src/header.rs

@@ -7,7 +7,10 @@ use alloy_primitives::{b256, keccak256, Address, BlockNumber, Bloom, Bytes, B256
 use alloy_rlp::{
     length_of_length, Buf, BufMut, Decodable, Encodable, EMPTY_LIST_CODE, EMPTY_STRING_CODE,
 };
-use std::mem;
+use core::mem;
+
+#[cfg(not(feature = "std"))]
+use alloc::vec::Vec;
 
 /// Ommer root of empty list.
 pub const EMPTY_OMMER_ROOT_HASH: B256 =

crates/consensus/src/lib.rs

@@ -14,6 +14,10 @@
 #![cfg_attr(not(test), warn(unused_crate_dependencies))]
 #![deny(unused_must_use, rust_2018_idioms)]
 #![cfg_attr(docsrs, feature(doc_cfg, doc_auto_cfg))]
+#![cfg_attr(not(feature = "std"), no_std)]
+
+#[cfg(not(feature = "std"))]
+extern crate alloc;
 
 pub mod constants;
 

crates/consensus/src/receipt/envelope.rs

@@ -184,6 +184,7 @@ where
             0 => Ok(Self::Legacy(receipt)),
             1 => Ok(Self::Eip2930(receipt)),
             2 => Ok(Self::Eip1559(receipt)),
+            3 => Ok(Self::Eip4844(receipt)),
             _ => unreachable!(),
         }
     }

crates/consensus/src/receipt/receipts.rs

@@ -2,6 +2,9 @@ use super::TxReceipt;
 use alloy_primitives::{Bloom, Log};
 use alloy_rlp::{length_of_length, BufMut, Decodable, Encodable};
 
+#[cfg(not(feature = "std"))]
+use alloc::vec::Vec;
+
 /// Receipt containing result of transaction execution.
 #[derive(Clone, Debug, PartialEq, Eq, Default)]
 #[cfg_attr(feature = "serde", derive(serde::Serialize, serde::Deserialize))]

crates/consensus/src/transaction/eip1559.rs

@@ -2,7 +2,10 @@ use crate::{SignableTransaction, Signed, Transaction, TxType};
 use alloy_eips::eip2930::AccessList;
 use alloy_primitives::{keccak256, Bytes, ChainId, Signature, TxKind, U256};
 use alloy_rlp::{BufMut, Decodable, Encodable, Header};
-use std::mem;
+use core::mem;
+
+#[cfg(not(feature = "std"))]
+use alloc::vec::Vec;
 
 /// A transaction with a priority fee ([EIP-1559](https://eips.ethereum.org/EIPS/eip-1559)).
 #[derive(Debug, Clone, PartialEq, Eq, Hash, Default)]

crates/consensus/src/transaction/eip2930.rs

@@ -2,7 +2,10 @@ use crate::{SignableTransaction, Signed, Transaction, TxType};
 use alloy_eips::eip2930::AccessList;
 use alloy_primitives::{keccak256, Bytes, ChainId, Signature, TxKind, U256};
 use alloy_rlp::{length_of_length, BufMut, Decodable, Encodable, Header};
-use std::mem;
+use core::mem;
+
+#[cfg(not(feature = "std"))]
+use alloc::vec::Vec;
 
 /// Transaction with an [`AccessList`] ([EIP-2930](https://eips.ethereum.org/EIPS/eip-2930)).
 #[derive(Debug, Clone, PartialEq, Eq, Hash, Default)]

crates/consensus/src/transaction/eip4844.rs

@@ -13,8 +13,11 @@ use alloy_primitives::{
     keccak256, Address, Bytes, ChainId, FixedBytes, Signature, TxKind, B256, U256,
 };
 use alloy_rlp::{length_of_length, BufMut, Decodable, Encodable, Header};
+use core::mem;
 use sha2::{Digest, Sha256};
-use std::mem;
+
+#[cfg(not(feature = "std"))]
+use alloc::vec::Vec;
 
 #[cfg(not(feature = "kzg"))]
 pub use alloy_eips::eip4844::{Blob, Bytes48};
@@ -1047,8 +1050,8 @@ struct BlobTransactionSidecarRlp {
     proofs: Vec<FixedBytes<BYTES_PER_PROOF>>,
 }
 
-const _: [(); std::mem::size_of::<BlobTransactionSidecar>()] =
-    [(); std::mem::size_of::<BlobTransactionSidecarRlp>()];
+const _: [(); mem::size_of::<BlobTransactionSidecar>()] =
+    [(); mem::size_of::<BlobTransactionSidecarRlp>()];
 
 impl BlobTransactionSidecarRlp {
     const fn wrap_ref(other: &BlobTransactionSidecar) -> &Self {
@@ -1058,7 +1061,7 @@ impl BlobTransactionSidecarRlp {
 
     fn unwrap(self) -> BlobTransactionSidecar {
         // SAFETY: Same repr and size
-        unsafe { std::mem::transmute(self) }
+        unsafe { mem::transmute(self) }
     }
 
     fn encode(&self, out: &mut dyn BufMut) {

crates/consensus/src/transaction/eip4844/builder.rs

@@ -3,9 +3,12 @@ use alloy_eips::eip4844::Blob;
 #[cfg(feature = "kzg")]
 use c_kzg::{Blob, KzgCommitment, KzgProof};
 
-use alloy_eips::eip4844::{BYTES_PER_BLOB, FIELD_ELEMENTS_PER_BLOB};
+#[cfg(not(feature = "std"))]
+use alloc::vec::Vec;
 
 use super::utils::WholeFe;
+use alloy_eips::eip4844::{BYTES_PER_BLOB, FIELD_ELEMENTS_PER_BLOB};
+use core::cmp;
 
 /// A builder for creating a [`BlobTransactionSidecar`].
 ///
@@ -196,7 +199,7 @@ impl SimpleCoder {
 
         let mut res = Vec::with_capacity(num_bytes);
         while num_bytes > 0 {
-            let to_copy = std::cmp::min(31, num_bytes);
+            let to_copy = cmp::min(31, num_bytes);
             let fe = fes.next().ok_or(())?;
             res.extend_from_slice(&fe.as_ref()[1..1 + to_copy]);
             num_bytes -= to_copy;
@@ -220,7 +223,7 @@ impl SidecarCoder for SimpleCoder {
 
         // ingest the rest of the data
         while !data.is_empty() {
-            let (left, right) = data.split_at(std::cmp::min(31, data.len()));
+            let (left, right) = data.split_at(cmp::min(31, data.len()));
             builder.ingest_partial_fe(left);
             data = right
         }
@@ -386,9 +389,8 @@ where
 
 #[cfg(test)]
 mod tests {
-    use alloy_eips::eip4844::USABLE_BYTES_PER_BLOB;
-
     use super::*;
+    use alloy_eips::eip4844::USABLE_BYTES_PER_BLOB;
 
     #[test]
     fn ingestion_strategy() {

crates/consensus/src/transaction/envelope.rs

@@ -3,6 +3,7 @@ use crate::{
 };
 use alloy_eips::eip2718::{Decodable2718, Eip2718Error, Encodable2718};
 use alloy_rlp::{Decodable, Encodable, Header};
+use core::mem;
 
 /// Ethereum `TransactionType` flags as specified in EIPs [2718], [1559], and
 /// [2930].
@@ -43,7 +44,7 @@ impl TryFrom<u8> for TxType {
     fn try_from(value: u8) -> Result<Self, Self::Error> {
         match value {
             // SAFETY: repr(u8) with explicit discriminant
-            0..=3 => Ok(unsafe { std::mem::transmute(value) }),
+            0..=3 => Ok(unsafe { mem::transmute(value) }),
             _ => Err(Eip2718Error::UnexpectedType(value)),
         }
     }
@@ -256,7 +257,7 @@ mod tests {
     use crate::transaction::SignableTransaction;
     use alloy_eips::eip2930::{AccessList, AccessListItem};
     use alloy_primitives::{hex, Address, Bytes, Signature, TxKind, B256, U256};
-    use std::{fs, path::PathBuf};
+    use std::{fs, path::PathBuf, vec, vec::Vec};
 
     #[test]
     #[cfg(feature = "k256")]

crates/consensus/src/transaction/legacy.rs

@@ -1,7 +1,10 @@
 use crate::{SignableTransaction, Signed, Transaction};
 use alloy_primitives::{keccak256, Bytes, ChainId, Signature, TxKind, U256};
 use alloy_rlp::{length_of_length, BufMut, Decodable, Encodable, Header, Result};
-use std::mem;
+use core::mem;
+
+#[cfg(not(feature = "std"))]
+use alloc::vec::Vec;
 
 /// Legacy transaction.
 #[derive(Debug, Clone, PartialEq, Eq, Hash, Default)]

crates/consensus/src/transaction/mod.rs

@@ -1,5 +1,9 @@
 use crate::Signed;
 use alloy_primitives::{keccak256, ChainId, TxKind, B256, U256};
+use core::any;
+
+#[cfg(not(feature = "std"))]
+use alloc::vec::Vec;
 
 mod eip1559;
 pub use eip1559::TxEip1559;
@@ -25,7 +29,7 @@ mod typed;
 pub use typed::TypedTransaction;
 
 /// Represents a minimal EVM transaction.
-pub trait Transaction: std::any::Any + Send + Sync + 'static {
+pub trait Transaction: any::Any + Send + Sync + 'static {
     /// Get `data`.
     fn input(&self) -> &[u8];
 
@@ -107,8 +111,8 @@ pub trait SignableTransaction<Signature>: Transaction {
 // TODO: Remove in favor of dyn trait upcasting (TBD, see https://github.com/rust-lang/rust/issues/65991#issuecomment-1903120162)
 #[doc(hidden)]
 impl<S: 'static> dyn SignableTransaction<S> {
-    pub fn __downcast_ref<T: std::any::Any>(&self) -> Option<&T> {
-        if std::any::Any::type_id(self) == std::any::TypeId::of::<T>() {
+    pub fn __downcast_ref<T: any::Any>(&self) -> Option<&T> {
+        if any::Any::type_id(self) == any::TypeId::of::<T>() {
             unsafe { Some(&*(self as *const _ as *const T)) }
         } else {
             None

crates/network/Cargo.toml

@@ -12,7 +12,7 @@ repository.workspace = true
 exclude.workspace = true
 
 [dependencies]
-alloy-consensus.workspace = true
+alloy-consensus = { workspace = true, features = ["std"] }
 alloy-eips = { workspace = true, features = ["serde"] }
 alloy-json-rpc.workspace = true
 alloy-primitives.workspace = true

crates/node-bindings/src/anvil.rs

@@ -289,12 +289,7 @@ impl Anvil {
             Command::new("anvil")
         };
         cmd.stdout(std::process::Stdio::piped()).stderr(std::process::Stdio::inherit());
-        let mut port = if let Some(port) = self.port {
-            port
-        } else {
-            // let the OS choose a port for us
-            0
-        };
+        let mut port = self.port.unwrap_or_default();
         cmd.arg("-p").arg(port.to_string());
 
         if let Some(mnemonic) = self.mnemonic {

crates/provider/Cargo.toml

@@ -37,7 +37,7 @@ tracing.workspace = true
 url = { workspace = true, optional = true }
 
 [dev-dependencies]
-alloy-consensus.workspace = true
+alloy-consensus = { workspace = true, features = ["std"] }
 alloy-node-bindings.workspace = true
 alloy-rlp.workspace = true
 alloy-signer.workspace = true

crates/rpc-types-engine/Cargo.toml

@@ -15,9 +15,9 @@ exclude.workspace = true
 # ethereum
 alloy-rlp = { workspace = true, features = ["arrayvec", "derive"] }
 alloy-primitives = { workspace = true, features = ["rlp", "serde"] }
+alloy-consensus = { workspace = true, features = ["std"] }
 alloy-rpc-types.workspace = true
 alloy-serde.workspace = true
-alloy-consensus.workspace = true
 
 # ssz
 ethereum_ssz_derive = { workspace = true, optional = true }

crates/rpc-types/Cargo.toml

@@ -18,7 +18,7 @@ alloy-primitives = { workspace = true, features = ["rlp", "serde", "std"] }
 alloy-serde.workspace = true
 alloy-genesis.workspace=true
 
-alloy-consensus = { workspace = true, features = ["serde"] }
+alloy-consensus = { workspace = true, features = ["std", "serde"] }
 alloy-eips = {workspace = true, features = ["std", "serde"]}
 
 itertools.workspace = true
@@ -49,7 +49,7 @@ ssz = ["alloy-primitives/ssz", "alloy-eips/ssz"]
 
 [dev-dependencies]
 alloy-primitives = { workspace = true, features = ["rand", "rlp", "serde", "arbitrary"] }
-alloy-consensus = { workspace = true, features = ["arbitrary"] }
+alloy-consensus = { workspace = true, features = ["std", "arbitrary"] }
 
 arbitrary = { workspace = true, features = ["derive"] }
 proptest.workspace = true

crates/signer-aws/Cargo.toml

@@ -12,7 +12,7 @@ repository.workspace = true
 exclude.workspace = true
 
 [dependencies]
-alloy-consensus.workspace = true
+alloy-consensus = { workspace = true, features = ["std"] }
 alloy-network.workspace = true
 alloy-primitives.workspace = true
 alloy-signer.workspace = true

crates/signer-gcp/Cargo.toml

@@ -12,7 +12,7 @@ repository.workspace = true
 exclude.workspace = true
 
 [dependencies]
-alloy-consensus.workspace = true
+alloy-consensus = { workspace = true, features = ["std"] }
 alloy-network.workspace = true
 alloy-primitives.workspace = true
 alloy-signer.workspace = true

crates/signer-ledger/Cargo.toml

@@ -12,7 +12,7 @@ repository.workspace = true
 exclude.workspace = true
 
 [dependencies]
-alloy-consensus.workspace = true
+alloy-consensus = { workspace = true, features = ["std"] }
 alloy-primitives.workspace = true
 alloy-signer.workspace = true
 
@@ -28,7 +28,7 @@ alloy-sol-types = { workspace = true, optional = true }
 alloy-network.workspace = true
 
 [dev-dependencies]
-alloy-consensus.workspace = true
+alloy-consensus = { workspace = true, features = ["std"] }
 alloy-rlp.workspace = true
 tokio = { workspace = true, features = ["macros", "rt-multi-thread"] }
 serial_test.workspace = true

crates/signer-trezor/Cargo.toml

@@ -12,7 +12,7 @@ repository.workspace = true
 exclude.workspace = true
 
 [dependencies]
-alloy-consensus.workspace = true
+alloy-consensus = { workspace = true, features = ["std"] }
 alloy-network.workspace = true
 alloy-primitives.workspace = true
 alloy-signer.workspace = true

crates/signer-wallet/Cargo.toml

@@ -12,7 +12,7 @@ repository.workspace = true
 exclude.workspace = true
 
 [dependencies]
-alloy-consensus.workspace = true
+alloy-consensus = { workspace = true, features = ["std"] }
 alloy-network.workspace = true
 alloy-primitives.workspace = true
 alloy-signer.workspace = true
@@ -37,7 +37,7 @@ yubihsm = { version = "0.42", features = ["secp256k1", "http", "usb"], optional
 
 [dev-dependencies]
 serde.workspace = true
-alloy-consensus.workspace = true
+alloy-consensus = { workspace = true, features = ["std"] }
 alloy-network.workspace = true
 assert_matches.workspace = true
 serde_json.workspace = true

crates/signer/Cargo.toml

@@ -25,7 +25,7 @@ alloy-sol-types = { workspace = true, optional = true, features = ["std"] }
 alloy-dyn-abi = { workspace = true, optional = true, features = ["std", "eip712"] }
 
 [dev-dependencies]
-alloy-consensus.workspace = true
+alloy-consensus = { workspace = true, features = ["std"] }
 alloy-network.workspace = true
 alloy-signer-wallet.workspace = true
 assert_matches.workspace = true

scripts/check_no_std.sh

@@ -5,6 +5,7 @@ no_std_packages=(
     alloy-eips
     alloy-genesis
     alloy-serde
+    alloy-consensus
 )
 
 for package in "${no_std_packages[@]}"; do