/// <summary>
/// <see cref="KecaknoahSource"/>から指定の<see cref="Stream"/>にバイトコードを出力します。
/// </summary>
/// <param name="source">対象の<see cref="KecaknoahSource"/></param>
/// <param name="output">出力先</param>
public static void Save(KecaknoahSource source, Stream output)
{
using (var writer = new BinaryWriter(output, stringEncoding, true))
{
writer.Write(magicNumber);
writer.Write(BytecodeVersion);
writer.Write(source.Uses.Count + source.Classes.Count + source.TopLevelMethods.Count);
foreach (var x in source.Uses)
{
writer.Write((byte)TopLevelBlockType.Use);
writer.Write(x);
}
foreach (var x in source.Classes)
{
writer.Write((byte)TopLevelBlockType.Class);
WriteClass(x, writer);
}
foreach (var x in source.TopLevelMethods)
{
writer.Write((byte)TopLevelBlockType.TopLevelMethod);
WriteMethod(x, writer);
}
}
}
/// <summary>
/// 1つのソースコード全体からなる<see cref="KecaknoahAst"/>をプリコンパイルします。
/// </summary>
/// <param name="ast">対象の<see cref="KecaknoahAst"/></param>
/// <returns>プリコンパイル結果</returns>
public KecaknoahSource PrecompileAll(KecaknoahAst ast)
{
var result = new KecaknoahSource();
current = result;
foreach (var i in ast.RootNode.Children)
{
if (i is KecaknoahClassAstNode)
{
result.classes.Add(PrecompileClass(i as KecaknoahClassAstNode));
}
else if (i is KecaknoahFunctionAstNode)
{
result.methods.Add(PrecompileFunction(i as KecaknoahFunctionAstNode));
}
else if (i is KecaknoahUseAstNode)
{
result.uses.Add((i as KecaknoahUseAstNode).Target);
}
else
{
throw new InvalidOperationException("トップレベルにはクラスとメソッドとuse文以外おけません");
}
}
current = null;
return result;
}
/// <summary>
/// プリコンパイルしたソースコードを登録します。
/// </summary>
/// <param name="src">登録する<see cref="KecaknoahSource"/></param>
public void RegisterSource(KecaknoahSource src)
{
foreach (var c in src.Classes)
{
classes.Add(c);
classReferences.Add(KecaknoahReference.CreateRightReference(new KecaknoahScriptClassObject(c)));
}
foreach (var m in src.TopLevelMethods)
{
topMethods.Add(m);
methodReferences.Add(KecaknoahReference.CreateRightReference(new KecaknoahScriptFunction(KecaknoahNil.Instance, m)));
}
}
/// <summary>
/// プリコンパイルしたソースコードを登録します。
/// </summary>
/// <param name="src">登録する<see cref="KecaknoahSource"/></param>
public void RegisterSource(KecaknoahSource src)
{
foreach (var c in src.Classes)
{
classes.Add(c);
classReferences.Add(KecaknoahReference.CreateRightReference(new KecaknoahScriptClassObject(c)));
}
foreach (var m in src.TopLevelMethods)
{
topMethods.Add(m);
methodReferences.Add(KecaknoahReference.CreateRightReference(new KecaknoahScriptFunction(KecaknoahNil.Instance, m)));
}
}
static IList<string> AssembleSource(KecaknoahSource info)
{
var result = new List<string>();
foreach (var i in info.Classes)
{
result.AddRange(AssembleClass(i as KecaknoahScriptClassInfo));
result.Add("");
}
foreach (var i in info.TopLevelMethods)
{
result.AddRange(AssembleFunction(i as KecaknoahScriptMethodInfo));
result.Add("");
}
return result;
}
/// <summary>
/// 1つのソースコード全体からなる<see cref="KecaknoahAst"/>をプリコンパイルします。
/// </summary>
/// <param name="ast">対象の<see cref="KecaknoahAst"/></param>
/// <returns>プリコンパイル結果</returns>
public KecaknoahSource PrecompileAll(KecaknoahAst ast)
{
var result = new KecaknoahSource();
current = result;
foreach (var i in ast.RootNode.Children)
{
if (i is KecaknoahClassAstNode)
{
result.classes.Add(PrecompileClass(i as KecaknoahClassAstNode));
}
else if (i is KecaknoahFunctionAstNode)
{
result.methods.Add(PrecompileFunction(i as KecaknoahFunctionAstNode));
}
else
{
throw new InvalidOperationException("トップレベルにはクラスとメソッド以外おけません");
}
}
current = null;
return(result);
}
/// <summary>
/// バイトコードを読み込み、<see cref="KecaknoahSource"/>に変換します。
/// </summary>
/// <param name="input"></param>
/// <returns></returns>
public static KecaknoahSource Load(Stream input)
{
using (var reader = new BinaryReader(input, stringEncoding, true))
{
if (!reader.ReadBytes(magicNumber.Length).SequenceEqual(magicNumber))
throw new InvalidDataException("合言葉は「KC」");
var version = reader.ReadUInt16();
if (version > BytecodeVersion)
throw new InvalidDataException($"Kecaknoah Bytecode v{version} には対応していません。");
var result = new KecaknoahSource();
var count = reader.ReadInt32();
for (var i = 0; i < count; i++)
{
switch ((TopLevelBlockType)reader.ReadByte())
{
case TopLevelBlockType.Use:
result.uses.Add(reader.ReadString());
break;
case TopLevelBlockType.Class:
result.classes.Add(ReadClass(reader));
break;
case TopLevelBlockType.TopLevelMethod:
result.methods.Add(ReadMethod(reader));
break;
default:
throw new InvalidDataException("変なデータが出ーた！ｗｗｗｗ");
}
}
return result;
}
}
private void ProcessUseDirective(KecaknoahSource src)
{
var cur = Directory.GetCurrentDirectory();
var asm = Path.GetDirectoryName(typeof(KecaknoahModule).Assembly.Location);
var lex = new KecaknoahLexer();
var par = new KecaknoahParser();
var prc = new KecaknoahPrecompiler();
foreach (var text in src.Uses)
{
var arg = text.Split(new[] { ';' }, StringSplitOptions.RemoveEmptyEntries);
switch (arg[0])
{
case "import":
var it = Path.Combine(cur, arg[1]);
Directory.SetCurrentDirectory(Path.GetDirectoryName(it));
var s = prc.PrecompileAll(par.Parse(lex.AnalyzeFromFile(it)));
RegisterSource(s);
Directory.SetCurrentDirectory(cur);
break;
case "stdlib":
var lt = Path.Combine(asm, "lib");
Directory.SetCurrentDirectory(Path.GetDirectoryName(lt));
var s2 = prc.PrecompileAll(par.Parse(lex.AnalyzeFromFile(lt)));
RegisterSource(s2);
Directory.SetCurrentDirectory(cur);
break;
}
}
}
