Implement pre_dispatch for SignedExtensions (#370)

* Explicitly specify master branch for sp-keyring dev dependency

* Implement pre_dispatch for `SignedExtension`s

* Update macro/Cargo.toml

Co-authored-by: Niklas Adolfsson <niklasadolfsson1@gmail.com>

Co-authored-by: Niklas Adolfsson <niklasadolfsson1@gmail.com>

src/extrinsic/extra.rs

@@ -25,7 +25,10 @@ use core::{
 use scale_info::TypeInfo;
 use sp_runtime::{
     generic::Era,
-    traits::SignedExtension,
+    traits::{
+        DispatchInfoOf,
+        SignedExtension,
+    },
     transaction_validity::TransactionValidityError,
 };
 
@@ -68,6 +71,15 @@ where
     ) -> Result<Self::AdditionalSigned, TransactionValidityError> {
         Ok(self.1)
     }
+    fn pre_dispatch(
+        self,
+        _who: &Self::AccountId,
+        _call: &Self::Call,
+        _info: &DispatchInfoOf<Self::Call>,
+        _len: usize,
+    ) -> Result<Self::Pre, TransactionValidityError> {
+        Ok(())
+    }
 }
 
 /// Ensure the transaction version registered in the transaction is the same as at present.
@@ -99,6 +111,15 @@ where
     ) -> Result<Self::AdditionalSigned, TransactionValidityError> {
         Ok(self.1)
     }
+    fn pre_dispatch(
+        self,
+        _who: &Self::AccountId,
+        _call: &Self::Call,
+        _info: &DispatchInfoOf<Self::Call>,
+        _len: usize,
+    ) -> Result<Self::Pre, TransactionValidityError> {
+        Ok(())
+    }
 }
 
 /// Check genesis hash
@@ -130,6 +151,15 @@ where
     ) -> Result<Self::AdditionalSigned, TransactionValidityError> {
         Ok(self.1)
     }
+    fn pre_dispatch(
+        self,
+        _who: &Self::AccountId,
+        _call: &Self::Call,
+        _info: &DispatchInfoOf<Self::Call>,
+        _len: usize,
+    ) -> Result<Self::Pre, TransactionValidityError> {
+        Ok(())
+    }
 }
 
 /// Check for transaction mortality.
@@ -163,6 +193,15 @@ where
     ) -> Result<Self::AdditionalSigned, TransactionValidityError> {
         Ok(self.1)
     }
+    fn pre_dispatch(
+        self,
+        _who: &Self::AccountId,
+        _call: &Self::Call,
+        _info: &DispatchInfoOf<Self::Call>,
+        _len: usize,
+    ) -> Result<Self::Pre, TransactionValidityError> {
+        Ok(())
+    }
 }
 
 /// Nonce check and increment to give replay protection for transactions.
@@ -184,6 +223,15 @@ where
     ) -> Result<Self::AdditionalSigned, TransactionValidityError> {
         Ok(())
     }
+    fn pre_dispatch(
+        self,
+        _who: &Self::AccountId,
+        _call: &Self::Call,
+        _info: &DispatchInfoOf<Self::Call>,
+        _len: usize,
+    ) -> Result<Self::Pre, TransactionValidityError> {
+        Ok(())
+    }
 }
 
 /// Resource limit check.
@@ -205,6 +253,15 @@ where
     ) -> Result<Self::AdditionalSigned, TransactionValidityError> {
         Ok(())
     }
+    fn pre_dispatch(
+        self,
+        _who: &Self::AccountId,
+        _call: &Self::Call,
+        _info: &DispatchInfoOf<Self::Call>,
+        _len: usize,
+    ) -> Result<Self::Pre, TransactionValidityError> {
+        Ok(())
+    }
 }
 
 /// Require the transactor pay for themselves and maybe include a tip to gain additional priority
@@ -230,6 +287,15 @@ impl SignedExtension for ChargeAssetTxPayment {
     ) -> Result<Self::AdditionalSigned, TransactionValidityError> {
         Ok(())
     }
+    fn pre_dispatch(
+        self,
+        _who: &Self::AccountId,
+        _call: &Self::Call,
+        _info: &DispatchInfoOf<Self::Call>,
+        _len: usize,
+    ) -> Result<Self::Pre, TransactionValidityError> {
+        Ok(())
+    }
 }
 
 /// Trait for implementing transaction extras for a runtime.
@@ -318,4 +384,13 @@ impl<T: Config + Clone + Debug + Eq + Send + Sync> SignedExtension for DefaultEx
     ) -> Result<Self::AdditionalSigned, TransactionValidityError> {
         self.extra().additional_signed()
     }
+    fn pre_dispatch(
+        self,
+        _who: &Self::AccountId,
+        _call: &Self::Call,
+        _info: &DispatchInfoOf<Self::Call>,
+        _len: usize,
+    ) -> Result<Self::Pre, TransactionValidityError> {
+        Ok(())
+    }
 }