public static void CreateNewInstance(MethodBuilder sink, DataInfo info, string classIdReader, bool pooled,
string refInst, bool needCreateVar, bool wrapType = false)
{
// Some bullshit logic here
// All of this because of value wrapper concept that should be reconsidered
var t = wrapType ? info.realType : info.type;
var name = wrapType ? info.accessPrefix + info.baseAccess : info.access;
string newExpr = "";
bool needCast = false;
if (t == typeof(string))
{
newExpr = "string.Empty";
}
else if (t.IsArray)
{
newExpr = $"Array.Empty<{t.RealName(true).Remove(t.RealName(true).Length - 2)}>()";
}
else if (t.CanBeAncestor() && info.cantBeAncestor == false)
{
needCast = true;
if (CodeGenTools.Valid(refInst))
{
string poolArg = "";
if (t.HasPool() && pooled)
{
poolArg = "pool";
}
newExpr = $"{refInst}.{PolymorphNewInstOfSameType}({poolArg})";
}
else
{
if (CodeGenTools.Valid(classIdReader) == false)
{
if (t.IsAbstract)
{
return;
}
newExpr = NewInstExpr(t, pooled);
}
else
{
var staticTypeCreator = baseClassMap.GetOrDefault(t, t).RealName(true);
if (t.IsGenericParameter)
{
if (t.GetGenericParameterConstraints().TryFind(par => !par.IsInterface, out var hardPar))
{
staticTypeCreator = hardPar.RealName(true);
}
else
{
Error($"can't generate new instance construction for unknown type {t} in {info.carrierType}, constrain this type with some base class like DataNode");
}
}
newExpr = $"{staticTypeCreator}.{PolymorphInstanceFuncName}({classIdReader})";
}
}
}
else
{
createNormally:
if (t.IsAbstract)
{
Error($"Type {t} is abstract but required to have constructor during {sink.classBuilder.name} generation");
return;
}
newExpr = NewInstExpr(t, pooled, info.defaultValue);
}
sink.content($"{(needCreateVar ? "var " : "")}{name} = {(needCast ? $"({t.RealName(true)})" : "")}{newExpr};");
}
public static void GeneralReadFrom(MethodBuilder sink, DataInfo info,
Action <MethodBuilder, DataInfo> baseReadCall, string isNullReader, string classIdReader,
string directReader, string refInst, string refIdReader, bool pooled, Func <Type, string> configIdReader = null, bool needCreateVar = false,
bool useTempVarThenAssign = false, bool getDataNodeFromRootWithRefId = false)
{
var t = info.type;
var canBeNull = info.canBeNull && !t.IsValueType;
var originalInfo = info;
string tempVar = "__" + originalInfo.baseAccess.Replace("[", "").Replace("]", "");
if (useTempVarThenAssign)
{
sink.content($"var {tempVar} = {originalInfo.access};");
info = new DataInfo
{
type = originalInfo.type,
baseAccess = tempVar,
};
}
var name = info.access;
bool newInstCalled = false;
if (needCreateVar)
{
sink.content($"{info.type.RealName(true)} {info.name} = default;");
}
if (t.IsImmutableValueType() || t.IsValueType && t.IsControllable() == false)
{
sink.content($"{name} = {directReader};");
return;
}
else if (t.IsRef())
{
if (CodeGenTools.Valid(refIdReader))
{
sink.content($"{info.access}.id = {refIdReader};");
}
else
{
throw new NotImplementedException();
}
}
else
{
if (canBeNull)
{
sink.content($"if ({isNullReader}) {{");
sink.indent++;
SinkRemovePostProcess(sink, info, pooled);
sink.content($"{name} = null;");
sink.indent--;
sink.content($"}}");
sink.content($"else {{ ");
sink.indent++;
}
bool fromExternalSource = false;
if (t.IsConfig() && info.insideConfigStorage == false)
{
ConfigFromId(sink, info, configIdReader, false);
fromExternalSource = true;
}
else if (getDataNodeFromRootWithRefId && typeof(IReferencableFromDataRoot).IsAssignableFrom(t))
{
sink.content($"{info.access} = ({info.type.RealName(true)})root.Recall({refIdReader});");
fromExternalSource = true;
}
else
{
if (info.sureIsNull && !info.type.IsValueType)
{
CreateNewInstance(sink, info, classIdReader, pooled, refInst, false);
newInstCalled = true;
}
else
{
string createNewCondition = "";
if (canBeNull || info.CanBeNullAfterConstruction())
{
createNewCondition = $"{name} == null";
}
string classIdVarName = $"{name.Replace('[', '_').Replace(']', '_').Replace('.', '_')}ClassId";
if (t.CanBeAncestor() && info.cantBeAncestor == false)
{
sink.content($"var {classIdVarName} = {classIdReader};");
createNewCondition = AddOrCondition(createNewCondition,
$"{name}.{PolymorphClassIdGetter} != {classIdVarName}");
}
if (info.type.IsImmutableType() == false && CodeGenTools.Valid(createNewCondition))
{
sink.content($"if ({createNewCondition}) {{");
sink.indent++;
SinkRemovePostProcess(sink, info, pooled);
CreateNewInstance(sink, info, classIdVarName, pooled, refInst, false);
newInstCalled = true;
sink.indent--;
sink.content($"}}");
}
}
}
if (!fromExternalSource)
{
baseReadCall(sink, info);
}
if (canBeNull)
{
sink.indent--;
sink.content($"}}");
}
}
if (useTempVarThenAssign)
{
sink.content($"{originalInfo.access} = {tempVar};");
}
}