Spellchecking for examples + Fix master CI

.config/cargo_spellcheck.dic

@@ -35,6 +35,7 @@ scalable
 adjunctive
 invariants
 deserializes
+DApp
 
 hasher/S
 hashmap/S
@@ -48,3 +49,4 @@ defragment/SD
 layout/JG
 endian/P
 accessor/S
+NFT/S

.gitlab-ci.yml

@@ -157,6 +157,12 @@ spellcheck:
         when: never
     script:
         - cargo spellcheck check --cfg=.config/cargo_spellcheck.toml --checkers hunspell --code 1
+        - for example in examples/*/; do
+            cargo spellcheck check --cfg=.config/cargo_spellcheck.toml --checkers hunspell --code 1 ${example};
+          done
+        - for contract in ${DELEGATOR_SUBCONTRACTS}; do
+            cargo spellcheck check --cfg=.config/cargo_spellcheck.toml --checkers hunspell --code 1 examples/delegator/${contract}/;
+          done
 
 codecov:
   stage:                           workspace

crates/engine/src/database.rs

@@ -69,7 +69,7 @@ impl Database {
         account_id: &[u8],
         key: &[u8],
     ) -> Option<&Vec<u8>> {
-        let hashed_key = storage_of_contract_key(&account_id, key);
+        let hashed_key = storage_of_contract_key(account_id, key);
         self.hmap.get(&hashed_key.to_vec())
     }
 
@@ -80,7 +80,7 @@ impl Database {
         key: &[u8],
         value: Vec<u8>,
     ) -> Option<Vec<u8>> {
-        let hashed_key = storage_of_contract_key(&account_id, key);
+        let hashed_key = storage_of_contract_key(account_id, key);
         self.hmap.insert(hashed_key.to_vec(), value)
     }
 
@@ -90,7 +90,7 @@ impl Database {
         account_id: &[u8],
         key: &[u8],
     ) -> Option<Vec<u8>> {
-        let hashed_key = storage_of_contract_key(&account_id, key);
+        let hashed_key = storage_of_contract_key(account_id, key);
         self.hmap.remove(&hashed_key.to_vec())
     }
 
@@ -112,7 +112,7 @@ impl Database {
 
     /// Returns the balance of `account_id`, if available.
     pub fn get_balance(&self, account_id: &[u8]) -> Option<Balance> {
-        let hashed_key = balance_of_key(&account_id);
+        let hashed_key = balance_of_key(account_id);
         self.get(&hashed_key).map(|encoded_balance| {
             scale::Decode::decode(&mut &encoded_balance[..])
                 .expect("unable to decode balance from database")
@@ -121,7 +121,7 @@ impl Database {
 
     /// Sets the balance of `account_id` to `new_balance`.
     pub fn set_balance(&mut self, account_id: &[u8], new_balance: Balance) {
-        let hashed_key = balance_of_key(&account_id);
+        let hashed_key = balance_of_key(account_id);
         let encoded_balance = scale::Encode::encode(&new_balance);
         self.hmap
             .entry(hashed_key.to_vec())

crates/engine/src/ext.rs

@@ -291,7 +291,7 @@ impl Engine {
             .as_ref()
             .expect("no callee has been set")
             .as_bytes();
-        set_output(output, &callee)
+        set_output(output, callee)
     }
 
     /// Restores a tombstone to the original smart contract.
@@ -343,14 +343,14 @@ impl Engine {
         super::hashing::keccak_256(input, output);
     }
 
-    pub fn now(&self, _output: &mut &mut [u8]) {
-        unimplemented!("off-chain environment does not yet support `now`");
-    }
-
     pub fn block_number(&self, _output: &mut &mut [u8]) {
         unimplemented!("off-chain environment does not yet support `block_number`");
     }
 
+    pub fn block_timestamp(&self, _output: &mut &mut [u8]) {
+        unimplemented!("off-chain environment does not yet support `block_timestamp`");
+    }
+
     pub fn gas_left(&self, _output: &mut &mut [u8]) {
         unimplemented!("off-chain environment does not yet support `gas_left`");
     }

crates/env/src/engine/experimental_off_chain/impls.rs

@@ -288,7 +288,7 @@ impl TypedEnvBackend for EnvInstance {
     }
 
     fn block_timestamp<T: Environment>(&mut self) -> Result<T::Timestamp> {
-        self.get_property::<T::Timestamp>(Engine::now)
+        self.get_property::<T::Timestamp>(Engine::block_timestamp)
     }
 
     fn account_id<T: Environment>(&mut self) -> Result<T::AccountId> {

crates/env/src/engine/off_chain/db/accounts.rs

@@ -92,7 +92,7 @@ impl AccountsDb {
         //       the borrow-checker somehow cannot make sense of it according
         //       to its lifetime analysis. Consider this to be a hack until
         //       the borrow-checker eventually let's us do this.
-        if self.get_account::<T>(&at).is_some() {
+        if self.get_account::<T>(at).is_some() {
             self.get_account_mut::<T>(at)
                 .expect("just checked that account exists")
         } else {

crates/lang/codegen/src/generator/item_impls.rs

@@ -37,7 +37,7 @@ pub struct ItemImpls<'a> {
 
 impl AsRef<ir::Contract> for ItemImpls<'_> {
     fn as_ref(&self) -> &ir::Contract {
-        &self.contract
+        self.contract
     }
 }
 

crates/lang/codegen/src/generator/metadata.rs

@@ -125,7 +125,7 @@ impl Metadata<'_> {
             .map(|(trait_ident, constructor)| {
                 let span = constructor.span();
                 let attrs = constructor.attrs();
-                let docs = Self::extract_doc_comments(&attrs);
+                let docs = Self::extract_doc_comments(attrs);
                 let selector = constructor.composed_selector();
                 let selector_bytes = selector.as_bytes();
                 let constructor = constructor.callable();
@@ -216,7 +216,7 @@ impl Metadata<'_> {
             .map(|(trait_ident, message)| {
                 let span = message.span();
                 let attrs = message.attrs();
-                let docs = Self::extract_doc_comments(&attrs);
+                let docs = Self::extract_doc_comments(attrs);
                 let selector = message.composed_selector();
                 let selector_bytes = selector.as_bytes();
                 let is_payable = message.is_payable();

crates/lang/ir/src/ir/item_impl/callable.rs

@@ -101,43 +101,43 @@ where
     C: Callable,
 {
     fn kind(&self) -> CallableKind {
-        <C as Callable>::kind(&self.callable)
+        <C as Callable>::kind(self.callable)
     }
 
     fn ident(&self) -> &Ident {
-        <C as Callable>::ident(&self.callable)
+        <C as Callable>::ident(self.callable)
     }
 
     fn user_provided_selector(&self) -> Option<&ir::Selector> {
-        <C as Callable>::user_provided_selector(&self.callable)
+        <C as Callable>::user_provided_selector(self.callable)
     }
 
     fn is_payable(&self) -> bool {
-        <C as Callable>::is_payable(&self.callable)
+        <C as Callable>::is_payable(self.callable)
     }
 
     fn visibility(&self) -> Visibility {
-        <C as Callable>::visibility(&self.callable)
+        <C as Callable>::visibility(self.callable)
     }
 
     fn inputs(&self) -> InputsIter {
-        <C as Callable>::inputs(&self.callable)
+        <C as Callable>::inputs(self.callable)
     }
 
     fn inputs_span(&self) -> Span {
-        <C as Callable>::inputs_span(&self.callable)
+        <C as Callable>::inputs_span(self.callable)
     }
 
     fn statements(&self) -> &[syn::Stmt] {
-        <C as Callable>::statements(&self.callable)
+        <C as Callable>::statements(self.callable)
     }
 }
 
 impl<'a, C> ::core::ops::Deref for CallableWithSelector<'a, C> {
     type Target = C;
 
     fn deref(&self) -> &Self::Target {
-        &self.callable
+        self.callable
     }
 }
 

crates/lang/macro/src/lib.rs

@@ -500,13 +500,13 @@ use proc_macro::TokenStream;
 ///             Self { value: init_value }
 ///         }
 ///
-///         /// Flips the current value of the Flipper's bool.
+///         /// Flips the current value of the Flipper's boolean.
 ///         #[ink(message)]
 ///         pub fn flip(&mut self) {
 ///             self.value = !self.value;
 ///         }
 ///
-///         /// Returns the current value of the Flipper's bool.
+///         /// Returns the current value of the Flipper's boolean.
 ///         #[ink(message)]
 ///         pub fn get(&self) -> bool {
 ///             self.value

crates/lang/macro/tests/ui/pass/05-erc721-contract.rs

@@ -75,7 +75,7 @@ mod erc721 {
     }
 
     impl Erc721 {
-        /// Creates a new ERC721 token contract.
+        /// Creates a new ERC-721 token contract.
         #[ink(constructor)]
         pub fn new() -> Self {
             Self {
@@ -193,7 +193,7 @@ mod erc721 {
             Ok(())
         }
 
-        /// Transfers token `id` `from` the sender to the `to` AccountId.
+        /// Transfers token `id` `from` the sender to the `to` `AccountId`.
         fn transfer_token_from(
             &mut self,
             from: &AccountId,
@@ -336,7 +336,7 @@ mod erc721 {
                 .unwrap_or(&false)
         }
 
-        /// Returns true if the AccountId `from` is the owner of token `id`
+        /// Returns true if the `AccountId` `from` is the owner of token `id`
         /// or it has been approved on behalf of the token `id` owner.
         fn approved_or_owner(&self, from: Option<AccountId>, id: TokenId) -> bool {
             let owner = self.owner_of(id);

crates/storage/src/alloc/boxed/storage.rs

@@ -85,11 +85,11 @@ where
     }
 
     fn push_spread(&self, ptr: &mut KeyPtr) {
-        forward_push_packed::<Self>(&self, ptr)
+        forward_push_packed::<Self>(self, ptr)
     }
 
     fn clear_spread(&self, ptr: &mut KeyPtr) {
-        forward_clear_packed::<Self>(&self, ptr)
+        forward_clear_packed::<Self>(self, ptr)
     }
 }
 

crates/storage/src/alloc/init.rs

@@ -114,7 +114,7 @@ impl DynamicAllocatorState {
                 // Push all state of the global dynamic storage allocator
                 // instance back onto the contract storage.
                 push_spread_root::<DynamicAllocator>(
-                    &allocator,
+                    allocator,
                     &Key::from(DYNAMIC_ALLOCATOR_KEY_OFFSET),
                 );
                 // Prevent calling `drop` on the dynamic storage allocator

crates/storage/src/collections/binary_heap/children_vec.rs

@@ -175,7 +175,7 @@ where
     /// Prefer using methods like `Iterator::take` in order to limit the number
     /// of yielded elements.
     pub fn iter(&self) -> Iter<T> {
-        Iter::new(&self)
+        Iter::new(self)
     }
 
     /// Returns a shared reference to the first element if any.

crates/storage/src/collections/hashmap/mod.rs

@@ -415,8 +415,8 @@ where
     /// Returns a reference to this entry's key.
     pub fn key(&self) -> &K {
         match self {
-            Entry::Occupied(entry) => &entry.values_entry.key(),
-            Entry::Vacant(entry) => &entry.values_entry.key(),
+            Entry::Occupied(entry) => entry.values_entry.key(),
+            Entry::Vacant(entry) => entry.values_entry.key(),
         }
     }
 
@@ -459,7 +459,7 @@ where
     {
         match self {
             Entry::Occupied(entry) => &mut entry.values_entry.into_mut().value,
-            Entry::Vacant(entry) => Entry::insert(default(&entry.key()), entry),
+            Entry::Vacant(entry) => Entry::insert(default(entry.key()), entry),
         }
     }
 
@@ -494,7 +494,7 @@ where
 {
     /// Gets a reference to the key that would be used when inserting a value through the `VacantEntry`.
     pub fn key(&self) -> &K {
-        &self.values_entry.key()
+        self.values_entry.key()
     }
 
     /// Take ownership of the key.
@@ -520,7 +520,7 @@ where
 {
     /// Gets a reference to the key in the entry.
     pub fn key(&self) -> &K {
-        &self.values_entry.key()
+        self.values_entry.key()
     }
 
     /// Take the ownership of the key and value from the map.

crates/storage/src/collections/stash/tests.rs

@@ -24,7 +24,7 @@ use ink_primitives::Key;
 
 #[test]
 fn regression_stash_unreachable_minified() {
-    // This regression has been discovered in the ERC721 example implementation
+    // This regression has been discovered in the ERC-721 example implementation
     // `approved_for_all_works` unit test. The fix was to adjust
     // `Stash::remove_vacant_entry` to update `header.last_vacant` if the
     // removed index was the last remaining vacant index in the stash.

crates/storage/src/lazy/entry.rs

@@ -185,7 +185,7 @@ where
     /// Mainly used by lazy storage abstractions that only allow operating on
     /// packed storage entities such as [`LazyCell`][`crate::lazy::LazyCell`].
     pub fn pull_spread_root(root_key: &Key) -> Self {
-        Self::new(pull_spread_root_opt::<T>(&root_key), EntryState::Preserved)
+        Self::new(pull_spread_root_opt::<T>(root_key), EntryState::Preserved)
     }
 
     /// Pushes the underlying associated data to the contract storage using
@@ -198,7 +198,7 @@ where
     pub fn push_spread_root(&self, root_key: &Key) {
         let old_state = self.replace_state(EntryState::Preserved);
         if old_state.is_mutated() {
-            push_spread_root_opt::<T>(self.value().into(), &root_key);
+            push_spread_root_opt::<T>(self.value().into(), root_key);
         }
     }
 
@@ -209,7 +209,7 @@ where
     /// Mainly used by lazy storage abstractions that only allow operating on
     /// packed storage entities such as [`LazyCell`][`crate::lazy::LazyCell`].
     pub fn clear_spread_root(&self, root_key: &Key) {
-        clear_spread_root_opt::<T, _>(&root_key, || self.value().into());
+        clear_spread_root_opt::<T, _>(root_key, || self.value().into());
     }
 }
 
@@ -238,7 +238,7 @@ where
     pub fn push_packed_root(&self, root_key: &Key) {
         let old_state = self.replace_state(EntryState::Preserved);
         if old_state.is_mutated() {
-            push_packed_root_opt::<T>(self.value().into(), &root_key);
+            push_packed_root_opt::<T>(self.value().into(), root_key);
         }
     }
 
@@ -250,7 +250,7 @@ where
     /// packed storage entities such as [`LazyIndexMap`][`crate::lazy::LazyIndexMap`]
     /// or [`LazyArray`][`crate::lazy::LazyArray`].
     pub fn clear_packed_root(&self, root_key: &Key) {
-        clear_packed_root::<Option<T>>(self.value(), &root_key);
+        clear_packed_root::<Option<T>>(self.value(), root_key);
     }
 }
 

crates/storage/src/lazy/lazy_array.rs

@@ -294,7 +294,7 @@ where
             // because it requires a deep clean-up which propagates clearing to its fields,
             // for example in the case of `T` being a `storage::Box`.
             let entity = self.get(index).expect("cannot clear a non existing entity");
-            clear_packed_root::<T>(&entity, &root_key);
+            clear_packed_root::<T>(entity, &root_key);
         } else {
             // The type does not require deep clean-up so we can simply clean-up
             // its associated storage cell and be done without having to load it first.

crates/storage/src/lazy/lazy_hmap.rs

@@ -271,7 +271,7 @@ where
     fn push_spread(&self, ptr: &mut KeyPtr) {
         let offset_key = ExtKeyPtr::next_for::<Self>(ptr);
         for (index, entry) in self.entries().iter() {
-            let root_key = self.to_offset_key(&offset_key, index);
+            let root_key = self.to_offset_key(offset_key, index);
             entry.push_packed_root(&root_key);
         }
     }
@@ -638,7 +638,7 @@ where
             // because it requires a deep clean-up which propagates clearing to its fields,
             // for example in the case of `T` being a `storage::Box`.
             let entity = self.get(index).expect("cannot clear a non existing entity");
-            clear_packed_root::<V>(&entity, &root_key);
+            clear_packed_root::<V>(entity, &root_key);
         } else {
             // The type does not require deep clean-up so we can simply clean-up
             // its associated storage cell and be done without having to load it first.

crates/storage/src/lazy/lazy_imap.rs

@@ -284,7 +284,7 @@ where
             // because it requires a deep clean-up which propagates clearing to its fields,
             // for example in the case of `T` being a `storage::Box`.
             let entity = self.get(index).expect("cannot clear a non existing entity");
-            clear_packed_root::<V>(&entity, &root_key);
+            clear_packed_root::<V>(entity, &root_key);
         } else {
             // The type does not require deep clean-up so we can simply clean-up
             // its associated storage cell and be done without having to load it first.