private List <string> GenerateReadMethod(Type type)
{
var code = new List <string>();
var ReturnClassName = type.CompilableClassName();
code.Add($"public static {ReturnClassName} Read(Serializer serializer)");
code.Add("{");
code.Add("var packer = serializer.Packer;");
code.Add($"return new {ReturnClassName}");
code.Add("{");
foreach (var p in PropertyFieldInfo.FindProperties(type))
{
code.Add(GeneratePropertyRead(p));
}
code.Add("};");
code.Add("}");
code.Add($"public static async Task<{ReturnClassName}> ReadAsync(Serializer serializer,");
code.Add("CancellationToken cancellation)");
code.Add("{");
code.Add("var packer = serializer.Packer;");
code.Add($"return new {ReturnClassName}");
code.Add("{");
foreach (var p in PropertyFieldInfo.FindProperties(type))
{
code.Add(GeneratePropertyAsyncRead(p));
}
code.Add("};");
code.Add("}");
return(code);
}
private static List <string> ReadingAsyncCode(
PropertyFieldInfo p, string statementRead,
bool needCheckReference)
{
var code = new List <string>();
if (!needCheckReference)
{
code.Add($"result.{p.MemberName} = await {statementRead};");
return(code);
}
if (p.IsOptional)
{
code.Add($"result.{p.MemberName} = await {statementRead};");
}
else
{
code.Add($"var value = await {statementRead};");
code.Add("if (value == null ) {");
code.Add($"throw new InvalidDataException(\"required member {p.MemberName} meets null data\");");
code.Add("}");
code.Add($"result.{p.MemberName} = value;");
}
return(code);
}
private static List <string> WrittingAsyncCode(
PropertyFieldInfo p, string statementWrite,
bool needCheckReference)
{
var code = new List <string>();
if (!needCheckReference)
{
code.Add($"await {statementWrite}");
return(code);
}
if (p.IsOptional)
{
code.Add($"await {statementWrite}");
}
else
{
code.Add($"if (value.{p.MemberName} == null)");
code.Add("{");
code.Add($"throw new ArgumentNullException(\"{p.MemberName}\");");
code.Add("}");
code.Add($"await {statementWrite}");
}
return(code);
}
private List <string> GenerateWriteMethod(Type type)
{
var code = new List <string>();
code.Add($"public static void Write({type.CompilableClassName()} value,");
code.Add("Serializer2 serializer, Dictionary<Object,int> cache)");
code.Add("{");
code.Add("var packer = serializer.Packer;");
code.Add($"if (value == null)");
code.Add("{ packer.WriteInt32(0); return; }");
code.Add("{");
code.Add("if (cache.TryGetValue(value, out int id)) {");
code.Add("packer.WriteInt32(id);");
code.Add("return;");
code.Add("}}");
code.Add("{");
code.Add("var id = cache.Count + 1;");
code.Add("cache[value] = id;");
code.Add("packer.WriteInt32(id);");
code.Add("}");
foreach (var p in PropertyFieldInfo.FindProperties(type))
{
code.Add("{");
code.AddRange(GeneratePropertyWrite(p));
code.Add("}");
}
code.Add("}");
code.Add($"public static async Task WriteAsync({type.CompilableClassName()} value,");
code.Add("Serializer2 serializer, Dictionary<Object,int> cache, CancellationToken cancellation)");
code.Add("{");
code.Add("var packer = serializer.Packer;");
code.Add($"if (value == null)");
code.Add("{ await packer.WriteInt32Async(0, cancellation); return; }");
code.Add("{");
code.Add("if (cache.TryGetValue(value, out int id)) {");
code.Add("await packer.WriteInt32Async(id, cancellation);");
code.Add("return;");
code.Add("}}");
code.Add("{");
code.Add("var id = cache.Count + 1;");
code.Add("cache[value] = id;");
code.Add("await packer.WriteInt32Async(id, cancellation);");
code.Add("}");
foreach (var p in PropertyFieldInfo.FindProperties(type))
{
code.Add("{");
code.AddRange(GeneratePropertyAsyncWrite(p));
code.Add("}");
}
code.Add("}");
return(code);
}
private string GeneratePropertyRead(PropertyFieldInfo p)
{
foreach (var gen in _statementGenerators)
{
if (gen.Matches(p))
{
return(ReadingCode(p, gen.ReadingStatement(p)));
}
}
throw new NotSupportedException($"{p.MemberType} of {p.MemberName} is not a supported type");
}
private static string ReadingAsyncCode(PropertyFieldInfo p, string statementRead)
{
if (p.IsOptional)
{
return($"{p.MemberName} = ((await packer.ReadBoolAsync(cancellation)) ? await {statementRead} : null),");
}
else
{
return($"{p.MemberName} = await {statementRead},");
}
}
private static string ReadingCode(PropertyFieldInfo p, string statementRead)
{
if (p.IsOptional)
{
return($"{p.MemberName} = (packer.ReadBool() ? {statementRead} : null),");
}
else
{
return($"{p.MemberName} = {statementRead},");
}
}
private List <string> GeneratePropertyAsyncRead(PropertyFieldInfo p)
{
foreach (var gen in _statementGenerators)
{
if (gen.Matches(p))
{
return(ReadingAsyncCode(p, gen.ReadingAsyncStatement(p), gen.NeedCheckReference));
}
}
throw new NotSupportedException($"{p.MemberType} of {p.MemberName} is not a supported type");
}
private static List <string> WrittingAsyncCode(PropertyFieldInfo p, string statementWrite)
{
var code = new List <string>();
if (p.IsOptional)
{
code.Add($"if (value.{p.MemberName} == null) await packer.WriteBoolAsync(false, cancellation);");
code.Add("else { await packer.WriteBoolAsync(true, cancellation);");
code.Add($"await {statementWrite}");
code.Add("}");
}
else
{
code.Add($"await {statementWrite}");
}
return(code);
}
private static List <string> WrittingCode(PropertyFieldInfo p, string statementWrite)
{
var code = new List <string>();
if (p.IsOptional)
{
code.Add($"if (value.{p.MemberName} == null) packer.WriteBool(false);");
code.Add("else { packer.WriteBool(true);");
code.Add(statementWrite);
code.Add("}");
}
else
{
code.Add(statementWrite);
}
return(code);
}
private List <string> GenerateReadMethod(Type type)
{
var code = new List <string>();
var ReturnClassName = type.CompilableClassName();
code.Add($"public static {ReturnClassName} Read(Serializer2 serializer, Dictionary<int, Object> cache)");
code.Add("{");
code.Add("var packer = serializer.Packer;");
code.Add("var refId = packer.ReadInt32();");
code.Add("if (refId == 0 ) return null;");
code.Add($"if (cache.TryGetValue(refId, out object ret)) return ({ReturnClassName})ret;");
code.Add($"var result = new {ReturnClassName}();");
code.Add("cache[refId] = result;");
foreach (var p in PropertyFieldInfo.FindProperties(type))
{
code.Add("{");
code.AddRange(GeneratePropertyRead(p));
code.Add("};");
}
code.Add("return result;");
code.Add("}");
code.Add($"public static async Task<{ReturnClassName}> ReadAsync(Serializer2 serializer,");
code.Add("Dictionary<int, Object> cache, CancellationToken cancellation)");
code.Add("{");
code.Add("var packer = serializer.Packer;");
code.Add("var refId = await packer.ReadInt32Async(cancellation);");
code.Add("if (refId == 0 ) return null;");
code.Add($"if (cache.TryGetValue(refId, out object ret)) return ({ReturnClassName})ret;");
code.Add($"var result = new {ReturnClassName}();");
code.Add("cache[refId] = result;");
foreach (var p in PropertyFieldInfo.FindProperties(type))
{
code.Add("{");
code.AddRange(GeneratePropertyAsyncRead(p));
code.Add("};");
}
code.Add("return result;");
code.Add("}");
return(code);
}
private List <string> GenerateWriteMethod(Type type)
{
var code = new List <string>();
code.Add($"public static void Write({type.CompilableClassName()} value, Serializer serializer)");
code.Add("{");
code.Add("var packer = serializer.Packer;");
foreach (var p in PropertyFieldInfo.FindProperties(type))
{
code.AddRange(GeneratePropertyWrite(p));
}
code.Add("}");
code.Add($"public static async Task WriteAsync({type.CompilableClassName()} value,");
code.Add("Serializer serializer, CancellationToken cancellation)");
code.Add("{");
code.Add("var packer = serializer.Packer;");
foreach (var p in PropertyFieldInfo.FindProperties(type))
{
code.AddRange(GeneratePropertyAsyncWrite(p));
}
code.Add("}");
return(code);
}
public bool Matches(PropertyFieldInfo p)
{
return(p.MemberType.Name == "Dictionary`2" && p.MemberType.IsGenericType);
}
public bool Matches(PropertyFieldInfo p)
{
return(p.MemberType.IsArray && p.MemberType.GetArrayRank() == 1 && p.MemberType.HasElementType);
}
public string ReadingStatement(PropertyFieldInfo p)
{
return($"CollectionPacker2.ReadArray{p.GenericParams()}(serializer, cache)");
}
public string ReadingAsyncStatement(PropertyFieldInfo p)
{
return($"CollectionPacker2.ReadStringAsync(serializer, cache, cancellation)");
}
public string WrittingAsyncStatement(PropertyFieldInfo p)
{
return($"CollectionPacker2.WriteStringAsync(value.{p.MemberName}, serializer, cache, cancellation);");
}
public string ReadingStatement(PropertyFieldInfo p)
{
return($"CollectionPacker2.ReadString(serializer, cache)");
}
public string WrittingStatement(PropertyFieldInfo p)
{
return($"CollectionPacker2.WriteDict{p.GenericParams()}(value.{p.MemberName}, serializer, cache);");
}
public string ReadingAsyncStatement(PropertyFieldInfo p)
{
return($"CollectionPacker2.ReadNullableAsync{p.GenericParams()}(serializer, cancellation)");
}
public bool Matches(PropertyFieldInfo p)
{
return(p.MemberType.Name == "Nullable`1" && p.MemberType.IsGenericType);
}
public string ReadingAsyncStatement(PropertyFieldInfo p)
{
return($"CollectionPacker2.ReadEnumAsync<{p.MemberType.CompilableClassName()}>(serializer, cancellation)");
}
public bool Matches(PropertyFieldInfo p)
{
return(p.MemberType.IsEnum);
}
public string ReadingStatement(PropertyFieldInfo p)
{
return($"{p.MemberType.GeneratedClassName2()}.Read(serializer, cache)");
}
public string WrittingAsyncStatement(PropertyFieldInfo p)
{
return($"CollectionPacker2.WriteEnumAsync<{p.MemberType.CompilableClassName()}>(value.{p.MemberName}, serializer, cancellation);");
}
public string ReadingAsyncStatement(PropertyFieldInfo p)
{
return($"{p.MemberType.GeneratedClassName2()}.ReadAsync(serializer, cache, cancellation)");
}
public string ReadingStatement(PropertyFieldInfo p)
{
return($"CollectionPacker2.ReadNullable{p.GenericParams()}(serializer)");
}
public string WrittingAsyncStatement(PropertyFieldInfo p)
{
return($"{p.MemberType.GeneratedClassName2()}.WriteAsync(value.{p.MemberName}, serializer, cache, cancellation);");
}
public string WrittingAsyncStatement(PropertyFieldInfo p)
{
return($"CollectionPacker2.WriteNullableAsync{p.GenericParams()}(value.{p.MemberName}, serializer, cancellation);");
}
public bool Matches(PropertyFieldInfo p)
{
return(p.MemberType == typeof(string));
}