Use `dataclass` for OpenPulse types #49

	name: Reference Python Package

	on:
	[push, pull_request]

	jobs:
	build:
	uses: ./.github/workflows/build-ast.yml
	tests:
	name: OpenPulse AST tests
	needs: build
	runs-on: ubuntu-latest
	strategy:
	fail-fast: false
	matrix:
	# Just using minimum and maximum to avoid exploding the matrix.
	python-version: ['3.7', '3.10']
	antlr-version: ['4.7', '4.11']
	defaults:
	run:
	working-directory: source/openpulse

	steps:
	- uses: actions/checkout@v3
	with:
	fetch-depth: 0

	- uses: actions/setup-python@v3
	with:
	python-version: ${{ matrix.python-version }}

	- uses: actions/download-artifact@v3
	with:
	name: openpulse-python-wheel
	path: ./source/openpulse/

	- name: Install package
	run: \|
	set -e
	pip install --upgrade pip wheel
	pip install -r requirements-dev.txt
	pip install 'antlr4_python3_runtime==${{ matrix.antlr-version }}'
	pip install "$(echo openpulse-*.whl)[all]"

	- name: Check openpulse format
	run: black --check --diff openpulse tests

	- name: Check openpulse style
	working-directory: source/openpulse/openpulse
	run: pylint .

	- name: Check openpulse tests style
	working-directory: source/openpulse/tests
	run: pylint .

	- name: Run openpulse tests
	run: \|
	# Swap into the testing directory so the imported `openpulse` is the
	# wheel version not the current-directory version. The
	# `--import-mode=importlib` stops pytest from modifying the path to
	# accidentally put the checked-out version (with no ANTLR) back.
	cd tests
	pytest -vv --color=yes --import-mode=importlib .

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