attributes: implement checking and handling of attributes #1616

	name: Rust

	on:
	push:
	branches: [main]
	pull_request:
	branches: [main]

	env:
	CARGO_TERM_COLOR: always

	jobs:
	build_and_test:
	name: Test, clippy, and format
	runs-on: ubuntu-latest
	steps:
	- name: Checkout source code
	uses: actions/checkout@v2

	- name: Cache LLVM
	id: cache-llvm
	uses: actions/cache@v2
	with:
	path: ./llvm
	key: llvm-15

	- name: Install LLVM
	uses: KyleMayes/install-llvm-action@v1
	with:
	version: "15.0.6"
	cached: ${{ steps.cache-llvm.outputs.cache-hit }}

	- name: Install Rust nightly
	run: \|
	rustup toolchain install nightly
	rustup component add clippy --toolchain nightly
	rustup component add rustfmt --toolchain nightly
	rustup default nightly

	- name: Dependency caching
	uses: Swatinem/rust-cache@v2

	- name: Run tests
	run: "LLVM_SYS_150_PREFIX=$LLVM_PATH cargo test --all --verbose"

	- name: Run clippy
	run: "LLVM_SYS_150_PREFIX=$LLVM_PATH cargo clippy --all -- -D warnings"

	- name: Check formatting
	run: "cargo fmt --all -- --check"

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