fix: no_std and workflow

.github/workflows/ci.yml

@@ -110,6 +110,21 @@ jobs:
       - name: cargo hack
         run: cargo hack check --feature-powerset --depth 2
 
+  check-no-std:
+    name: check no_std ${{ matrix.features }}
+    runs-on: ubuntu-latest
+    timeout-minutes: 30
+    steps:
+      - uses: actions/checkout@v4
+      - uses: dtolnay/rust-toolchain@stable
+        with:
+          targets: riscv32imac-unknown-none-elf
+      - uses: taiki-e/install-action@cargo-hack
+      - uses: Swatinem/rust-cache@v2
+        with:
+          cache-on-failure: true
+      - run: ./scripts/check_no_std.sh
+
   clippy:
     runs-on: ubuntu-latest
     timeout-minutes: 30

Cargo.toml

@@ -61,7 +61,7 @@ quote = "1.0"
 syn = "2.0"
 
 cfg-if = "1.0.0"
-derive_more = { version = "1.0", features = ["full"] }
+derive_more = { version = "1.0", default-features = false }
 hex-literal = "0.4"
 paste = "1.0"
 num_enum = "0.7"

crates/dyn-abi/Cargo.toml

@@ -31,7 +31,13 @@ itoa.workspace = true
 winnow.workspace = true
 
 # eip712
-derive_more = { workspace = true, optional = true }
+derive_more = { workspace = true, optional = true, features = [
+    "deref",
+    "deref_mut",
+    "from",
+    "into",
+    "into_iterator",
+] }
 serde = { workspace = true, optional = true }
 serde_json = { workspace = true, optional = true }
 

crates/primitives/Cargo.toml

@@ -30,7 +30,21 @@ tiny-keccak = { workspace = true, features = ["keccak"] }
 keccak-asm = { workspace = true, optional = true }
 
 # macros
-derive_more.workspace = true
+derive_more = { workspace = true, features = [
+    "as_ref",
+    "add",
+    "add_assign",
+    "not",
+    "deref",
+    "deref_mut",
+    "from",
+    "from_str",
+    "index",
+    "index_mut",
+    "into",
+    "into_iterator",
+    "display",
+] }
 cfg-if.workspace = true
 
 # rlp

crates/primitives/src/postgres.rs

@@ -5,9 +5,10 @@
 
 use super::{FixedBytes, Sign, Signed};
 use bytes::{BufMut, BytesMut};
-use derive_more::{Display, Error};
+use derive_more::Display;
 use postgres_types::{accepts, to_sql_checked, FromSql, IsNull, ToSql, Type, WrongType};
 use std::{
+    error::Error,
     iter,
     str::{from_utf8, FromStr},
 };
@@ -55,13 +56,15 @@ fn trim_end_vec<T: PartialEq>(vec: &mut Vec<T>, value: &T) {
 }
 
 /// Error when converting to Postgres types.
-#[derive(Clone, Debug, PartialEq, Eq, Display, Error)]
+#[derive(Clone, Debug, PartialEq, Eq, Display)]
 pub enum ToSqlError {
     /// The value is too large for the type.
     #[display("Signed<{_0}> value too large to fit target type {_1}")]
     Overflow(usize, Type),
 }
 
+impl std::error::Error for ToSqlError {}
+
 /// Convert to Postgres types.
 ///
 /// Compatible [Postgres data types][dt] are:

scripts/check_no_std.sh

@@ -0,0 +1,26 @@
+#!/usr/bin/env bash
+set -eo pipefail
+
+target=riscv32imac-unknown-none-elf
+crates=(
+    alloy-core
+    alloy-core-sol-test
+    alloy-dyn-abi
+    alloy-json-abi
+    alloy-json-abi
+    alloy-primitives
+    # alloy-sol-macro
+    # alloy-sol-macro-expander
+    # alloy-sol-macro-input
+    alloy-sol-type-parser
+    alloy-sol-types
+    # syn-solidity
+)
+
+cmd=(cargo +stable hack check --no-default-features --target "$target")
+for crate in "${crates[@]}"; do
+    cmd+=(-p "$crate")
+done
+
+echo "Running: ${cmd[*]}"
+"${cmd[@]}"