fix examples with core crate

core/src/lib.rs

@@ -15,7 +15,7 @@ pub mod config;
 pub mod constants;
 pub mod custom_values;
 pub mod dynamic;
-mod error;
+pub mod error;
 pub mod metadata;
 pub mod runtime_api;
 pub mod signer;
@@ -23,17 +23,21 @@ pub mod storage;
 pub mod tx;
 pub mod utils;
 
-pub use error::{Error, ExtrinsicParamsError, MetadataError, StorageAddressError};
-
 pub use client::{ClientBase, RuntimeVersion};
 pub use config::{
-    BlockHash, Config, ExtrinsicParams, ExtrinsicParamsEncoder, PolkadotConfig,
-    PolkadotExtrinsicParams, SubstrateConfig, SubstrateExtrinsicParams,
+    signed_extensions, BlockHash, Config, ExtrinsicParams, ExtrinsicParamsEncoder, Hasher, Header,
+    PolkadotConfig, PolkadotExtrinsicParams, SignedExtension, SubstrateConfig,
+    SubstrateExtrinsicParams,
 };
+pub use dynamic::{DecodedValue, DecodedValueThunk};
+pub use error::{Error, ExtrinsicParamsError, MetadataError, StorageAddressError};
 pub use metadata::Metadata;
 pub use signer::Signer;
 pub use storage::StorageAddress;
-pub use utils::{to_hex, AccountId32, MultiAddress, MultiSignature, Yes, H160, H256, H512};
+pub use utils::{
+    strip_compact_prefix, to_hex, AccountId32, KeyedVec, MultiAddress, MultiSignature, Yes, H160,
+    H256, H512,
+};
 
 #[macro_use]
 mod macros;

core/src/tx/mod.rs

@@ -38,6 +38,20 @@ pub trait TxPayload {
     fn validation_details(&self) -> Option<ValidationDetails<'_>> {
         None
     }
+
+    fn validate(&self, metadata: &Metadata) -> Result<(), Error> {
+        if let Some(details) = self.validation_details() {
+            let expected_hash = metadata
+                .pallet_by_name_err(details.pallet_name)?
+                .call_hash(details.call_name)
+                .ok_or_else(|| MetadataError::CallNameNotFound(details.call_name.to_owned()))?;
+
+            if details.hash != expected_hash {
+                return Err(MetadataError::IncompatibleCodegen.into());
+            }
+        }
+        Ok(())
+    }
 }
 
 pub struct ValidationDetails<'a> {