* checkpoint before removing CT from change trie * before trie backend without tx * undo * Started no transaction, but would need using a different root calculation method, out of the scope of this pr, will roll back. * Remove NoTransaction. * partially address review. dummy stats implementation for no_std. * Remove ChangeTrieOverlay. * modified function * Remove witness_ext * need noops changes root * update from cumulus branch * line break * remove warning * line break * From review: renamings and stats active in no std (except time). * include cache, exclude change trie cache with individual temporary bad looking no_std check * little test * fuse imports and filter_map prepare_extrinsics_input_inner fold. * put back ExtInner into Ext, awkward double proto for new function. * Apply suggestions from code review * Update primitives/state-machine/Cargo.toml Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>
Substrate ·

Substrate is a next-generation framework for blockchain innovation 🚀.
Trying it out
Simply go to substrate.dev and follow the installation instructions. You can also try out one of the tutorials.
Contributions & Code of Conduct
Please follow the contributions guidelines as outlined in docs/CONTRIBUTING.adoc. In all communications and contributions, this project follows the Contributor Covenant Code of Conduct.
Security
The security policy and procedures can be found in docs/SECURITY.md.
License
- Substrate Primitives (
sp-*), Frame (frame-*) and the pallets (pallets-*), binaries (/bin) and all other utilities are licensed under Apache 2.0. - Substrate Client (
/client/*/sc-*) is licensed under GPL v3.0 with a classpath linking exception.
The reason for the split-licensing is to ensure that for the vast majority of teams using Substrate to create feature-chains, then all changes can be made entirely in Apache2-licensed code, allowing teams full freedom over what and how they release and giving licensing clarity to commercial teams.
In the interests of the community, we require any deeper improvements made to Substrate's core logic (e.g. Substrate's internal consensus, crypto or database code) to be contributed back so everyone can benefit.
