[refactor]: Fix CI lints after bump of toolchain version

Cargo.toml

@@ -144,12 +144,10 @@ rust.nonstandard_style = "deny"
 rust.rust_2018_idioms = "deny"
 rust.trivial_casts = "deny"
 rust.trivial_numeric_casts = "deny"
-rust.unconditional_recursion = "deny"
 rust.unsafe_code = "deny"
 rust.unused = "deny"
 rust.unused_import_braces = "deny"
 rust.variant_size_differences = "deny"
-rust.unused_tuple_struct_fields = "deny"
 rust.explicit_outlives_requirements = "deny"
 rust.non_ascii_idents = "deny"
 rust.elided_lifetimes_in_paths = "allow"
@@ -159,9 +157,6 @@ rust.unused_lifetimes = "warn"
 # TODO: reenable
 # rust.unsafe_op_in_unsafe_fn = "deny"
 
-# lower the priority to allow overriding later
-clippy.all = { level = "deny", priority = -1 }
-
 # pedantic
 clippy.pedantic = { level = "warn", priority = -1 }
 clippy.match_wildcard_for_single_variants = "allow"
@@ -171,6 +166,7 @@ clippy.manual_let_else = "allow"
 clippy.enum_glob_use = "allow"
 clippy.module_name_repetitions = "allow"
 clippy.must_use_candidate = "allow"
+clippy.missing_panics_doc = "allow"
 
 # restriction
 clippy.dbg_macro = "deny"

cli/src/lib.rs

@@ -103,6 +103,7 @@ impl NetworkRelay {
     async fn run(mut self) {
         let (sender, mut receiver) = mpsc::channel(1);
         self.network.subscribe_to_peers_messages(sender);
+        // NOTE: Triggered by tokio::select
         #[allow(clippy::redundant_pub_crate)]
         loop {
             tokio::select! {
@@ -406,7 +407,6 @@ impl Iroha {
         Ok(TelemetryStartStatus::NotStarted)
     }
 
-    #[allow(clippy::redundant_pub_crate)]
     fn start_listening_signal(notify_shutdown: Arc<Notify>) -> Result<task::JoinHandle<()>> {
         let (mut sigint, mut sigterm) = signal::unix::signal(signal::unix::SignalKind::interrupt())
             .and_then(|sigint| {
@@ -416,6 +416,8 @@ impl Iroha {
             })
             .wrap_err("Failed to start listening for OS signals")?;
 
+        // NOTE: Triggered by tokio::select
+        #[allow(clippy::redundant_pub_crate)]
         let handle = task::spawn(async move {
             tokio::select! {
                 _ = sigint.recv() => {
@@ -447,6 +449,8 @@ impl Iroha {
                 // FIXME: don't like neither the message nor inability to throw Result to the outside
                 .expect("Cannot proceed without working subscriptions");
 
+            // NOTE: Triggered by tokio::select
+            #[allow(clippy::redundant_pub_crate)]
             loop {
                 tokio::select! {
                     Ok(()) = log_level_update.changed() => {
@@ -528,7 +532,7 @@ pub fn read_config(
         let mut cfg = config.override_with(ConfigurationProxy::from_path(&*actual_config_path));
         let config_dir = actual_config_path
             .parent()
-            .expect("If config file was read, than it should has a parent. It is a bug.");
+            .expect("If config file was read, than it should have a parent. It is a bug.");
 
         // careful here: `genesis.file` might be a path relative to the config file.
         // we need to resolve it before proceeding

client/tests/integration/events/data.rs

@@ -6,8 +6,65 @@ use parity_scale_codec::Encode as _;
 use serde_json::json;
 use test_network::*;
 
-use crate::wasm::utils::wasm_template;
+/// Return string containing exported memory, dummy allocator, and
+/// host function imports which you can embed into your wasm module.
+///
+/// Memory is initialized with the given hex encoded string value
+// NOTE: It's expected that hex value is of even length
+#[allow(clippy::integer_division)]
+pub fn wasm_template(hex_val: &str) -> String {
+    format!(
+        r#"
+        ;; Import host function to execute instruction
+        (import "iroha" "{execute_instruction}"
+            (func $exec_isi (param i32 i32) (result i32)))
+
+        ;; Import host function to execute query
+        (import "iroha" "{execute_query}"
+            (func $exec_query (param i32 i32) (result i32)))
+
+        ;; Embed ISI into WASM binary memory
+        (memory (export "{memory_name}") 1)
+        (data (i32.const 0) "{hex_val}")
+
+        ;; Variable which tracks total allocated size
+        (global $mem_size (mut i32) i32.const {hex_len})
+
+        ;; Export mock allocator to host. This allocator never frees!
+        (func (export "{alloc_fn_name}") (param $size i32) (result i32)
+            global.get $mem_size
+
+            (global.set $mem_size
+                (i32.add (global.get $mem_size) (local.get $size)))
+        )
+
+        ;; Export mock deallocator to host. This allocator does nothing!
+        (func (export "{dealloc_fn_name}") (param $size i32) (param $len i32)
+           nop)
+        "#,
+        memory_name = "memory",
+        alloc_fn_name = "_iroha_smart_contract_alloc",
+        dealloc_fn_name = "_iroha_smart_contract_dealloc",
+        execute_instruction = "execute_instruction",
+        execute_query = "execute_query",
+        hex_val = escape_hex(hex_val),
+        hex_len = hex_val.len() / 2,
+    )
+}
+
+fn escape_hex(hex_val: &str) -> String {
+    let mut isi_hex = String::with_capacity(3 * hex_val.len());
+
+    for (i, c) in hex_val.chars().enumerate() {
+        if i % 2 == 0 {
+            isi_hex.push('\\');
+        }
+
+        isi_hex.push(c);
+    }
 
+    isi_hex
+}
 fn produce_instructions() -> Vec<InstructionBox> {
     let domains = (0..4)
         .map(|domain_index: usize| Domain::new(domain_index.to_string().parse().expect("Valid")));

client/tests/integration/events/pipeline.rs

@@ -12,7 +12,6 @@ use iroha_config::iroha::Configuration;
 use test_network::*;
 
 // Needed to re-enable ignored tests.
-#[allow(dead_code)]
 const PEER_COUNT: usize = 7;
 
 #[ignore = "ignore, more in #2851"]
@@ -33,7 +32,6 @@ fn transaction_with_fail_instruction_should_be_rejected() -> Result<()> {
     )
 }
 
-#[allow(dead_code, clippy::needless_range_loop, clippy::needless_pass_by_value)]
 fn test_with_instruction_and_status_and_port(
     instruction: Option<InstructionBox>,
     should_be: PipelineStatusKind,

client/tests/integration/unregister_peer.rs

@@ -112,14 +112,11 @@ fn init() -> Result<(
     let asset_definition_id: AssetDefinitionId = "xor#domain".parse()?;
     let create_asset =
         Register::asset_definition(AssetDefinition::quantity(asset_definition_id.clone()));
-    let instructions = parameters.into_iter().chain(
-        [
-            create_domain.into(),
-            create_account.into(),
-            create_asset.into(),
-        ]
-        .into_iter(),
-    );
+    let instructions = parameters.into_iter().chain([
+        create_domain.into(),
+        create_account.into(),
+        create_asset.into(),
+    ]);
     client.submit_all_blocking(instructions)?;
     iroha_logger::info!("Init");
     Ok((

client/tests/mod.rs

@@ -1,3 +1,2 @@
 #[cfg(not(coverage))]
 mod integration;
-mod wasm;

client_cli/src/main.rs

@@ -69,7 +69,7 @@ impl FromStr for ValueArg {
             .or_else(|_| s.parse::<Ipv6Addr>().map(Value::Ipv6Addr))
             .or_else(|_| s.parse::<NumericValue>().map(Value::Numeric))
             .or_else(|_| s.parse::<PublicKey>().map(Value::PublicKey))
-            .or_else(|_| serde_json::from_str::<Value>(s).map_err(std::convert::Into::into))
+            .or_else(|_| serde_json::from_str::<Value>(s).map_err(Into::into))
             .map(ValueArg)
     }
 }

config/src/path.rs

@@ -69,9 +69,10 @@ impl Path {
     /// If the path has an extension.
     pub fn default(path: impl AsRef<std::path::Path>) -> Self {
         let path = path.as_ref().to_path_buf();
-        if path.extension().is_some() {
-            panic!("Default config path is not supposed to have an extension. It is a bug.")
-        }
+        assert!(
+            path.extension().is_none(),
+            "Default config path is not supposed to have an extension. It is a bug."
+        );
         Self(Default(path))
     }
 

core/src/block_sync.rs

@@ -218,7 +218,7 @@ pub mod message {
                         .take(1 + block_sync.block_batch_size as usize)
                         .map_while(|height| block_sync.kura.get_block_by_height(height))
                         .skip_while(|block| Some(block.hash()) == *latest_hash)
-                        .map(|block| SignedBlock::clone(&block))
+                        .map(|block| (*block).clone())
                         .collect::<Vec<_>>();
 
                     if blocks.is_empty() {

core/src/kiso.rs

@@ -147,7 +147,6 @@ impl Actor {
 }
 
 #[cfg(test)]
-#[allow(unused)]
 mod tests {
     use std::time::Duration;
 

core/src/kura.rs

@@ -31,7 +31,6 @@ const SIZE_OF_BLOCK_HASH: u64 = Hash::LENGTH as u64;
 #[derive(Debug)]
 pub struct Kura {
     /// The mode of initialisation of [`Kura`].
-    #[allow(dead_code)]
     mode: Mode,
     /// The block storage
     block_store: Mutex<BlockStore>,

core/src/queue.rs

@@ -185,7 +185,6 @@ impl Queue {
     ///
     /// # Errors
     /// See [`enum@Error`]
-    #[allow(clippy::missing_panics_doc)] // NOTE: It's a system invariant, should never happen
     pub fn push(&self, tx: AcceptedTransaction, wsv: &WorldStateView) -> Result<(), Failure> {
         trace!(?tx, "Pushing to the queue");
         if let Err(err) = self.check_tx(&tx, wsv) {
@@ -250,9 +249,8 @@ impl Queue {
         expired_transactions: &mut Vec<AcceptedTransaction>,
     ) -> Option<AcceptedTransaction> {
         loop {
-            let Some(hash) = self.tx_hashes.pop() else {
-                return None;
-            };
+            let hash = self.tx_hashes.pop()?;
+
             let entry = match self.accepted_txs.entry(hash) {
                 Entry::Occupied(entry) => entry,
                 // FIXME: Reachable under high load. Investigate, see if it's a problem.

core/src/smartcontracts/isi/account.rs

@@ -581,7 +581,7 @@ pub mod query {
             let id = &self.id;
             let key = &self.key;
             iroha_logger::trace!(%id, %key);
-            wsv.map_account(id, |account| account.metadata.get(key).map(Clone::clone))?
+            wsv.map_account(id, |account| account.metadata.get(key).cloned())?
                 .ok_or_else(|| FindError::MetadataKey(key.clone()).into())
                 .map(Into::into)
         }

core/src/smartcontracts/isi/block.rs

@@ -18,9 +18,7 @@ impl ValidQuery for FindAllBlocks {
         wsv: &'wsv WorldStateView,
     ) -> Result<Box<dyn Iterator<Item = SignedBlock> + 'wsv>, QueryExecutionFail> {
         Ok(Box::new(
-            wsv.all_blocks()
-                .rev()
-                .map(|block| SignedBlock::clone(&block)),
+            wsv.all_blocks().rev().map(|block| (*block).clone()),
         ))
     }
 }

core/src/smartcontracts/isi/domain.rs

@@ -334,7 +334,7 @@ pub mod query {
             let id = &self.id;
             let key = &self.key;
             iroha_logger::trace!(%id, %key);
-            wsv.map_domain(id, |domain| domain.metadata.get(key).map(Clone::clone))?
+            wsv.map_domain(id, |domain| domain.metadata.get(key).cloned())?
                 .ok_or_else(|| FindError::MetadataKey(key.clone()).into())
                 .map(Into::into)
         }

core/src/tx.rs

@@ -58,9 +58,7 @@ impl AcceptedTransaction {
         match &transaction.payload().instructions {
             Executable::Instructions(instructions) => {
                 let instruction_count = instructions.len();
-                if u64::try_from(instruction_count).expect("`usize` should always fit into `u64`")
-                    > limits.max_instruction_number
-                {
+                if Self::len_u64(instruction_count) > limits.max_instruction_number {
                     return Err(AcceptTransactionFail::TransactionLimit(
                         TransactionLimitError {
                             reason: format!(
@@ -76,13 +74,9 @@ impl AcceptedTransaction {
             //
             // Should we allow infinite instructions in wasm? And deny only based on fuel and size
             Executable::Wasm(smart_contract) => {
+                let size_bytes = Self::len_u64(smart_contract.size_bytes());
                 let max_wasm_size_bytes = limits.max_wasm_size_bytes;
 
-                let size_bytes: u64 = smart_contract
-                    .size_bytes()
-                    .try_into()
-                    .expect("`u64` should always fit in `u64`");
-
                 if size_bytes > max_wasm_size_bytes {
                     return Err(AcceptTransactionFail::TransactionLimit(
                         TransactionLimitError {
@@ -113,6 +107,10 @@ impl AcceptedTransaction {
     pub(crate) fn merge_signatures(&mut self, other: Self) -> bool {
         self.0.merge_signatures(other.0)
     }
+
+    fn len_u64(instruction_count: usize) -> u64 {
+        u64::try_from(instruction_count).expect("`usize` should always fit into `u64`")
+    }
 }
 
 impl From<AcceptedTransaction> for SignedTransaction {