## Summary This PR turns on `-D warnings` for `cargo-check-each-crate job` job to fail on warnings e.g. like this: https://gitlab.parity.io/parity/mirrors/polkadot-sdk/-/jobs/4673130 Before this PR, there was a warning and `cargo-check-each-crate` job did not fail: https://gitlab.parity.io/parity/mirrors/polkadot-sdk/-/jobs/4641444 ``` warning: unused import: `ToTokens` --> substrate/primitives/api/proc-macro/src/utils.rs:22:34 | 22 | use quote::{format_ident, quote, ToTokens}; | ^^^^^^^^ | = note: `#[warn(unused_imports)]` on by default warning: `sp-api-proc-macro` (lib) generated 1 warning (run `cargo fix --lib -p sp-api-proc-macro` to apply 1 suggestion) ``` Fixes on the way: https://gitlab.parity.io/parity/mirrors/polkadot-sdk/-/jobs/4641444 https://gitlab.parity.io/parity/mirrors/polkadot-sdk/-/jobs/4673265 https://gitlab.parity.io/parity/mirrors/polkadot-sdk/-/jobs/4673410 https://gitlab.parity.io/parity/mirrors/polkadot-sdk/-/jobs/4673681 https://gitlab.parity.io/parity/mirrors/polkadot-sdk/-/jobs/4673836 https://gitlab.parity.io/parity/mirrors/polkadot-sdk/-/jobs/4673941 https://gitlab.parity.io/parity/mirrors/polkadot-sdk/-/jobs/4674256 https://gitlab.parity.io/parity/mirrors/polkadot-sdk/-/jobs/4679328 ## Questions - [ ] why does this check triggers only `cargo check --locked`? `--all-features` or `--all-targets` are not needed? Or aren't they avoided intentionally? --------- Co-authored-by: command-bot <>
Substrate runtime api
The Substrate runtime api is the crucial interface between the node and the runtime.
Every call that goes into the runtime is done with a runtime api. The runtime apis are not fixed.
Every Substrate user can define its own apis with
decl_runtime_apis and implement them in
the runtime with impl_runtime_apis.
Every Substrate runtime needs to implement the [Core] runtime api. This api provides the basic
functionality that every runtime needs to export.
Besides the macros and the [Core] runtime api, this crates provides the [Metadata] runtime
api, the [ApiExt] trait, the [CallApiAt] trait and the [ConstructRuntimeApi] trait.
On a meta level this implies, the client calls the generated API from the client perspective.
License: Apache-2.0