features

Cargo.lock

@@ -603,6 +603,7 @@ dependencies = [
 name = "cuprate-constants"
 version = "0.1.0"
 dependencies = [
+ "cfg-if",
  "hex",
  "hex-literal",
  "monero-serai",

consensus/rules/src/miner_tx.rs

@@ -1,7 +1,6 @@
 use monero_serai::transaction::{Input, Output, Timelock, Transaction};
 
-use cuprate_constants::block::MAX_BLOCK_HEIGHT;
-use cuprate_helper::cast::u64_to_usize;
+use cuprate_constants::block::MAX_BLOCK_HEIGHT_USIZE;
 use cuprate_types::TxVersion;
 
 use crate::{is_decomposed_amount, transactions::check_output_types, HardFork};
@@ -114,7 +113,7 @@ fn check_time_lock(time_lock: &Timelock, chain_height: usize) -> Result<(), Mine
         &Timelock::Block(till_height) => {
             // Lock times above this amount are timestamps not blocks.
             // This is just for safety though and shouldn't actually be hit.
-            if till_height > u64_to_usize(MAX_BLOCK_HEIGHT) {
+            if till_height > MAX_BLOCK_HEIGHT_USIZE {
                 Err(MinerTxError::InvalidLockTime)?;
             }
             if till_height != chain_height + MINER_TX_TIME_LOCKED_BLOCKS {

constants/Cargo.toml

@@ -9,13 +9,17 @@ repository  = "https://github.com/Cuprate/cuprate/tree/main/constants"
 keywords    = ["cuprate", "constants"]
 
 [features]
-default      = ["monero-serai"]
-monero-serai = ["dep:monero-serai"]
+default = []
+block   = []
+build   = []
+genesis = ["dep:monero-serai", "dep:hex-literal", "dep:paste"]
+rpc     = []
 
 [dependencies]
+cfg-if       = { workspace = true }
 monero-serai = { workspace = true, optional = true }
-hex-literal  = { workspace = true }
-paste        = { workspace = true }
+hex-literal  = { workspace = true, optional = true }
+paste        = { workspace = true, optional = true }
 
 [dev-dependencies]
 monero-serai      = { workspace = true }

constants/README.md

@@ -1,6 +1,6 @@
 # cuprate-constants
 This crate contains general constants that are not specific to any particular
-part of the codebase yet are used in multiple places such as the [`crate::block::MAX_BLOCK_HEIGHT`].
+part of the codebase yet are used in multiple places such as the maximum block height.
 
 ## Static data
-This crate also contains `static` data used in multiple places such as the [`crate::genesis::mainnet::GENESIS_BLOCK`].
+This crate also contains `static` data used in multiple places such as the genesis block.

constants/src/lib.rs

@@ -1,9 +1,22 @@
 #![doc = include_str!("../README.md")]
 #![deny(missing_docs, reason = "all constants should document what they are")]
 
+cfg_if::cfg_if! {
+    // Used in test modules.
+    if #[cfg(test)] {
+        use hex as _;
+        use monero_serai as _;
+        use pretty_assertions as _;
+    }
+}
+
 mod macros;
 
+#[cfg(feature = "block")]
 pub mod block;
+#[cfg(feature = "build")]
 pub mod build;
+#[cfg(feature = "genesis")]
 pub mod genesis;
+#[cfg(feature = "rpc")]
 pub mod rpc;

constants/src/macros.rs

@@ -1,4 +1,9 @@
 /// Output a string link to `monerod` source code.
+#[allow(
+    clippy::allow_attributes,
+    unused_macros,
+    reason = "used in feature gated modules"
+)]
 macro_rules! monero_definition_link {
     (
         $commit:ident, // Git commit hash
@@ -21,4 +26,10 @@ macro_rules! monero_definition_link {
         )
     };
 }
+
+#[allow(
+    clippy::allow_attributes,
+    unused_imports,
+    reason = "used in feature gated modules"
+)]
 pub(crate) use monero_definition_link;

helper/Cargo.toml

@@ -24,7 +24,7 @@ thread    = ["std", "dep:target_os_lib"]
 tx        = ["dep:monero-serai"]
 
 [dependencies]
-cuprate-constants = { path = "../constants", optional = true }
+cuprate-constants = { path = "../constants", optional = true, features = ["block"] }
 
 crossbeam    = { workspace = true, optional = true }
 chrono       = { workspace = true, optional = true, features = ["std", "clock"] }

types/src/block_complete_entry.rs

@@ -1,7 +1,7 @@
 //! Contains [`BlockCompleteEntry`] and the related types.
 
 //---------------------------------------------------------------------------------------------------- Import
-// #[cfg(feature = "epee")]
+#[cfg(feature = "epee")]
 use bytes::Bytes;
 
 #[cfg(feature = "serde")]