Fix conditional negation (!) not being preserved in AST #29

	name: CI

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

	env:
	CARGO_TERM_COLOR: always

	jobs:
	lint:
	name: Lint
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	with:
	submodules: recursive

	- name: Install dependencies
	run: \|
	sudo apt-get update
	sudo apt-get install -y libncurses-dev

	- name: Install Rust
	uses: dtolnay/rust-toolchain@stable
	with:
	components: rustfmt, clippy

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

	- name: Run clippy
	run: cargo clippy -- -D warnings

	test:
	name: Test (${{ matrix.name }})
	runs-on: ${{ matrix.os }}
	strategy:
	fail-fast: false
	matrix:
	include:
	- name: Linux x86_64
	os: ubuntu-latest
	- name: macOS ARM64
	os: macos-latest

	steps:
	- uses: actions/checkout@v4
	with:
	submodules: recursive

	- name: Install dependencies (Ubuntu)
	if: runner.os == 'Linux'
	run: \|
	sudo apt-get update
	sudo apt-get install -y libncurses-dev

	- name: Install Rust
	uses: dtolnay/rust-toolchain@stable

	- name: Build
	run: cargo build --verbose

	- name: Run tests
	run: cargo test --verbose -- --test-threads=1

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