修改了虚拟类的定义 #13

	name: Build

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

	jobs:
	build:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3

	- name: Cache CMake build
	uses: actions/cache@v3
	with:
	path: build
	key: ${{ runner.os }}-cmake-${{ hashFiles('**/CMakeLists.txt') }}
	restore-keys: \|
	${{ runner.os }}-cmake-

	- name: Cache ANTLR4 build
	uses: actions/cache@v3
	with:
	path: /usr/local/lib/antlr4-runtime
	key: ${{ runner.os }}-antlr4-${{ hashFiles('**/CMakeLists.txt') }}

	- name: Install dependencies
	run: sudo apt-get update && sudo apt-get install -y cmake clang ninja-build uuid-dev

	- name: Install ANTLR4
	run: \|
	cd /tmp
	wget https://www.antlr.org/download/antlr4-cpp-runtime-4.13.1-source.zip
	unzip antlr4-cpp-runtime-4.13.1-source.zip -d antlr4-cpp-runtime-4.13.1-source/
	cd antlr4-cpp-runtime-4.13.1-source
	mkdir build && cd build
	cmake .. -DANTLR4_INSTALL=ON -G "Ninja" -DCMAKE_C_COMPILER=clang -DCMAKE_CXX_COMPILER=clang++
	ninja
	sudo ninja install

	- name: Configure CMake
	run: \|
	mkdir -p build
	cd build
	cmake .. -DCMAKE_BUILD_TYPE=Release

	- name: Build
	run: \|
	cd build
	make

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