bors[bot] 1d265b73b2 Merge #601 ... 601: [part 1/n] Change macrotables to build.rs codegen r=lulf a=Dirbaio This PR replaces the "macrotables" (the macros like `stm32_data::peripherals!`) with a `const METADATA`. Macrotables had some problems: - Hard to debug - Somewhat footgunny (typo the "pattern" and then nothing matches and the macro now expands to nothing, silently!) - Limited power - Can't count, so we had to add a [special macrotable for that](f50f3f0a73/embassy-stm32/src/dma/bdma.rs (L26)). - Can't remove duplicates, so we had to fallback to [Rust code in build.rs](f50f3f0a73/embassy-stm32/build.rs (L105-L145)) - Can't include the results as a listto another macro, so again [build.rs](https://github.com/embassy-rs/embassy/blob/master/embassy-stm32/build.rs#L100-L101). They work fine for the 95% of cases, but for the remaining 5% we need Rust code in build.rs. So we might as well do everything with Rust code, so everything is consistent. The new approach generates a `const METADATA: Metadata = Metadata { ... }` with [these structs](https://github.com/embassy-rs/embassy/blob/unmacrotablize/stm32-metapac-gen/src/assets/metadata.rs) in `stm32-metapac`. `build.rs` can then read that and generate whatever code. Co-authored-by: Dario Nieuwenhuis <dirbaio@dirbaio.net>		2022-02-09 15:27:35 +00:00
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src	Merge #601	2022-02-09 15:27:35 +00:00
build.rs	Merge #601	2022-02-09 15:27:35 +00:00
Cargo.toml	Merge #601	2022-02-09 15:27:35 +00:00