public static void Import(string moduleName)
{
if (!ModuleHeaders.ContainsKey(moduleName))
{
// 避免重复导入
if (File.Exists(Path.Combine(DirName, moduleName + ".xibc")))
{
ModuleHeaders.Add(moduleName, BinaryModule.Load(Path.Combine(DirName, moduleName + ".xibc")));
}
else if (File.Exists(Path.Combine(DirName, moduleName + ".xi")))
{
// 可能需要共同编译，因为也许互相有依赖
// 一个可能的想法是层序遍历，先声明所有的class，再声明所有的类成员，再定义所有的类成员
throw new NotImplementedException();
}
else
{
throw new XiLangError($"{moduleName} not found");
}
}
}
public static void Main(string[] args)
{
ArgumentParser argumentParser = new ArgumentParser(new ConsoleArgument());
ConsoleArgument dirArg = new ConsoleArgument("d", ArgumentValueType.STRING);
ConsoleArgument verboseArg = new ConsoleArgument("verbose");
argumentParser.AddArgument(dirArg);
argumentParser.AddArgument(verboseArg);
argumentParser.Parse(args);
string moduleName = argumentParser.DefaultRule.StringValue;
if (dirArg.IsSet)
{
DirName = dirArg.StringValue;
}
string fileName = null;
foreach (string f in Directory.EnumerateFiles(DirName))
{
string fname = Path.GetFileName(f).ToString();
if (fname.StartsWith(moduleName + "."))
{
fileName = f;
break; // TODO 不break，支持同模块多文件
}
}
if (string.IsNullOrEmpty(fileName))
{
Console.Error.WriteLine($"Module {moduleName} not found in {DirName}");
return;
}
string text = File.ReadAllText(fileName);
TokenPassManager tokenPasses = new TokenPassManager(text);
// 解析类信息之外的部分并生成AST
AST root = (AST)tokenPasses.Run(new Parser());
ASTPassManager astPasses = new ASTPassManager(root);
//, 打印json文件
if (verboseArg.IsSet)
{
string json = (string)astPasses.Run(new JsonPass());
File.WriteAllText(fileName + ".ast.json", json);
}
// 编译生成ir与字节码，编译阶段会完成常量表达式的估值
ModuleConstructor constructor = new ModuleConstructor(moduleName);
ModuleHeaders.Add(moduleName, constructor.Module);
List <Class> classes = (List <Class>)astPasses.Run(new ClassDeclarationPass(constructor));
(List <Field> fields, List <Method> methods) = ((List <Field> fields, List <Method> methods))
astPasses.Run(new MemberDeclarationPass(constructor, classes));
astPasses.Run(new CodeGenPass(constructor, classes, fields, methods));
// 输出生成字节码
constructor.Dump(DirName, verboseArg.IsSet);
}