subxt-core crate (#1466)

* start migrating, broken

* first iteration of updating

* fmt and clippy

* add Composite<u32> decoding via scale value patch

* bump scale type gen versions

* fix decoding with new scale decode

* compiling with changed deps

* core utils, condig, client, metadata

* core crate compiling

* signer crate no once lock

* add core to no-std-tests, change imports

* broken commit, start pulling everything together in subxt

* port more things to subxt

* events in core crate, extrinsics sadly much more difficult

* almost all examples pass again

* dynamic values fix in examples

* fix no std issue and fmt

* remove unused dependencies

* fix lightclient impl

* runtime version refactor

* formatting and addressing nits

* more comments addressed

* update wasm example and no-std-signer tests

* other nits and error impl on signer errors

* fix feature flag

* fix runtime version refactor

* fix doc links

* fix integration tests

* fix feature flag gated client state

* fix native feature in CI

* fix lightclient utils

* make imports more lean in subxt-core

* integrate changes from subxt-core imports into subxt

* other changes in subxt simplify imports more

* fix  and docs

* doc false for cli

* fix clippy

* remove events block hash in tests

* codegen no-std support in generated code

* export alloc crate for no-std codegen

* fix doc test

* implement James comments

* remove std traits, use core traits instead

* address nits

* remove unusued dep in no-std tests

* fix Box import in no_std

* sp-crypto-hashing instead of sp-core-hashing

* bump scale-typegen, add no std codegen tests

* fix some things

* replace unmaintained derivative with derive_where to remove non-canonical warnings

* fmt

* remove unused dep

* fix deps

* update artifacts to fix type ID mismatches

* bump to latest scale-typegen

---------

Co-authored-by: James Wilson <james@jsdw.me>

testing/integration-tests/src/full_client/client/unstable_rpcs.rs

@@ -51,8 +51,8 @@ async fn chainhead_unstable_follow() {
         FollowEvent::Initialized(init) => {
             assert_eq!(init.finalized_block_hashes, vec![finalized_block_hash]);
             if let Some(RuntimeEvent::Valid(RuntimeVersionEvent { spec })) = init.finalized_block_runtime {
-                assert_eq!(spec.spec_version, runtime_version.spec_version);
-                assert_eq!(spec.transaction_version, runtime_version.transaction_version);
+                assert_eq!(spec.spec_version, runtime_version.spec_version());
+                assert_eq!(spec.transaction_version, runtime_version.transaction_version());
             } else {
                 panic!("runtime details not provided with init event, got {:?}", init.finalized_block_runtime);
             }

testing/integration-tests/src/full_client/frame/contracts.rs

@@ -102,7 +102,6 @@ impl ContractsTestContext {
             .find_first::<system::events::ExtrinsicSuccess>()?
             .ok_or_else(|| Error::Other("Failed to find a ExtrinsicSuccess event".into()))?;
 
-        tracing::info!("  Block hash: {:?}", events.block_hash());
         tracing::info!("  Code hash: {:?}", code_stored.code_hash);
         tracing::info!("  Contract address: {:?}", instantiated.contract);
         Ok((code_stored.code_hash, instantiated.contract))

testing/no-std-tests/Cargo.toml

@@ -7,7 +7,9 @@ resolver = "2"
 
 [dependencies]
 subxt-metadata = { path = "../../metadata", default-features = false }
-subxt-signer = { path = "../../signer", default-features = false, features = ["sr25519"] }
+subxt-core = { path = "../../core", default-features = false }
+subxt-signer = { path = "../../signer", default-features = false, features = ["subxt", "sr25519"] }
+subxt-macro = { path = "../../macro" }
 codec = { package = "parity-scale-codec", version = "3.6.9", default-features = false, features = ["derive"] }
 libc_alloc = { version = "1.0.6" }
 

testing/no-std-tests/src/main.rs

@@ -57,4 +57,14 @@ fn compile_test() {
     // let _signature = keypair.sign(message);
     // let _public_key = keypair.public_key();
     //
+
+    // Subxt Core compiles:
+    let _era = subxt_core::utils::Era::Immortal;
+    
 }
+
+#[subxt_macro::subxt(
+    runtime_metadata_path = "../../artifacts/polkadot_metadata_full.scale",
+    crate="::subxt_core"
+)]
+pub mod polkadot{}

testing/ui-tests/src/correct/custom_values.rs

@@ -35,10 +35,8 @@ fn construct_offline_client() -> OfflineClient<PolkadotConfig> {
         let bytes = hex::decode(h).unwrap();
         H256::from_slice(&bytes)
     };
-    let runtime_version = subxt::backend::RuntimeVersion {
-        spec_version: 9370,
-        transaction_version: 20,
-    };
+    let runtime_version = subxt::client::RuntimeVersion::new(9370, 20);
+    
     let metadata = {
         let bytes = std::fs::read("../../../../artifacts/metadata_with_custom_values.scale").unwrap();
         Metadata::decode(&mut &*bytes).unwrap()

testing/ui-tests/src/lib.rs

@@ -84,7 +84,7 @@ fn ui_tests() {
     }
 
     // Validation should succeed when metadata we codegen from is stripped and
-    // client metadata is full:
+    // client state is full:
     {
         let mut metadata = MetadataTestRunner::load_metadata();
         metadata.retain(