public static bool CheckFieldExistence(ModuleConstructor constructor, ClassType classType, string fieldName, out int index)
{
ModuleHeaders.TryGetValue(classType.ModuleName, out ModuleHeader header);
int classInfoIndex = 1;
foreach (ClassConstantInfo classInfo in header.ClassPoolList)
{
if (header.StringPoolList[classInfo.Name - 1] == classType.ClassName)
{
break;
}
++classInfoIndex;
}
foreach (FieldConstantInfo fieldInfo in header.FieldPoolList)
{
if (fieldInfo.Class == classInfoIndex && header.StringPoolList[fieldInfo.Name - 1] == fieldName)
{
index = constructor.AddFieldPoolInfo(classType, fieldName,
header.StringPoolList[fieldInfo.Descriptor - 1], fieldInfo.Flag);
return(true);
}
}
index = -1;
return(false);
}
private static void Main(string[] args)
{
string dirName = ".";
ModuleConstructor = new ModuleConstructor(ModuleName);
List <AbstractClass> Classes = new List <AbstractClass>()
{
new System.IO.IO(),
new System.String.String()
};
foreach (AbstractClass systemClass in Classes)
{
systemClass.DeclarationGen();
foreach (var systemMethod in systemClass.Methods)
{
systemMethod.DeclarationGen();
}
}
foreach (AbstractClass systemClass in Classes)
{
systemClass.CodeGen();
}
// 输出生成字节码
ModuleConstructor.Dump(dirName);
Console.WriteLine($"System lib generated at {Path.GetFullPath(dirName)}.");
}
public ClassDeclarationPass(ModuleConstructor constructor)
{
Constructor = constructor;
}
public static void Main(string[] args)
{
ArgumentParser argumentParser = new ArgumentParser(new ConsoleArgument());
ConsoleArgument dirArg = new ConsoleArgument("d", ArgumentValueType.STRING);
ConsoleArgument verboseArg = new ConsoleArgument("verbose");
argumentParser.AddArgument(dirArg);
argumentParser.AddArgument(verboseArg);
argumentParser.Parse(args);
string moduleName = argumentParser.DefaultRule.StringValue;
if (dirArg.IsSet)
{
DirName = dirArg.StringValue;
}
string fileName = null;
foreach (string f in Directory.EnumerateFiles(DirName))
{
string fname = Path.GetFileName(f).ToString();
if (fname.StartsWith(moduleName + "."))
{
fileName = f;
break; // TODO 不break，支持同模块多文件
}
}
if (string.IsNullOrEmpty(fileName))
{
Console.Error.WriteLine($"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);
}
public MemberDeclarationPass(ModuleConstructor constructor, List <Class> classes)
{
Classes = classes;
Constructor = constructor;
}
