public DynamicReadTravellerBuilder(MethodBuilder builder, SerializableType target, TravellerContext context)
{
_target = target;
_context = context;
_il = builder.IL;
_visitorVariable = new MethodArgILCodeVariable(1, typeof(IReadVisitor));
}
public void BuildTraveller()
{
if (_classBuilder.IsSealed)
{
throw new InvalidOperationException("Classification builder is sealed");
}
var target = _typeProvider.GetOrCreate(_type);
var members = _dtContext.Members;
var factoryArgument = new ILArgPointer(members.VisitArgsFactoryType, 1);
var childTravellers = new Dictionary <Type, ChildTravellerInfo>();
var argFields = new Dictionary <SerializableProperty, FieldInfo>();
var il = _constructorBuilder.IL;
var travellerIndex = 0;
foreach (var property in target.Properties)
{
var argField = _classBuilder.DefinePrivateField("_arg" + property.Ref.Name, members.VisitArgsType);
var visitArgsCode = new ILCallMethodSnippet(factoryArgument, members.ConstructVisitArgsMethod, property.Ref.Name);
il.Set(ILPointer.This(), argField, visitArgsCode);
argFields.Add(property, argField);
if (!ReflectionAnalyzer.TryGetComplexTypes(property.Ext, out var types))
{
continue;
}
foreach (var type in types)
{
if (childTravellers.ContainsKey(type))
{
continue;
}
var dynamicTraveller = _dtContext.Get(type);
var interfaceType = typeof(IGraphTraveller <>).MakeGenericType(type);
var fieldBuilder = _classBuilder.DefinePrivateField(string.Concat("_traveller", type.Name, ++travellerIndex), interfaceType);
childTravellers.Add(type, new ChildTravellerInfo {
Field = fieldBuilder,
TravelWriteMethod = dynamicTraveller.TravelWriteMethod,
TravelReadMethod = dynamicTraveller.TravelReadMethod
});
var getFactoryCode = ILSnippet.Call(factoryArgument, members.ConstructVisitArgsWithTypeMethod, type);
var newTraveller = ILPointer.New(dynamicTraveller.Constructor, getFactoryCode);
il.Set(ILPointer.This(), fieldBuilder, newTraveller);
}
}
il.Emit(OpCodes.Ret);
var context = new TravellerContext(childTravellers, argFields);
BuildWriteMethods(target, context);
BuildReadMethods(target, context);
_classBuilder.Seal();
DynamicTraveller.Complete(_classBuilder.Type);
}
public DynamicReadTravellerBuilder(MethodBuilder builder, SerializableType target, TravellerContext context, ITypeProvider typeProvider)
{
_target = target;
_context = context;
_typeProvider = typeProvider;
_il = builder.IL;
_visitorVariable = new ILArgPointer(typeof(IReadVisitor), 1);
}
private void BuildReadMethods(SerializableType target, TravellerContext context)
{
var typedMethodBuilder = _travelReadMethod;
var readBuilder = new DynamicReadTravellerBuilder(typedMethodBuilder, target, context, _typeProvider.Provider);
readBuilder.BuildTravelReadMethod();
var untypedMethodBuilder = _classBuilder.DefineOverloadMethod("Travel", typeof(void), new[] { typeof(IReadVisitor), typeof(object) });
var il = untypedMethodBuilder.IL;
il.InvokeMethod(ILPointer.This(),
typedMethodBuilder.Method,
ILPointer.Arg(1, typeof(IReadVisitor)),
ILPointer.Arg(2, typeof(object)).Cast(target.Type));
il.Emit(OpCodes.Ret);
}
public void BuildTraveller()
{
if (_classBuilder.IsSealed) throw new InvalidOperationException("Class builder is sealed");
var target = _typeProvider.GetOrCreate(_type);
var members = _dtContext.Members;
var factoryArgument = new MethodArgILCodeVariable(1, members.VisitArgsFactoryType);
var childTravellers = new Dictionary<Type, ChildTravellerInfo>();
var argFields = new Dictionary<SerializableProperty, FieldInfo>();
var travellerIndex = 0;
foreach (var property in target.Properties) {
var argField = _classBuilder.DefinePrivateField("_arg" + property.Ref.Name, members.VisitArgsType);
var visitArgsCode = new CallMethodILCode(factoryArgument, members.ConstructVisitArgsMethod, property.Ref.Name);
_constructorBuilder.IL.SetField(argField, visitArgsCode);
argFields.Add(property, argField);
Type[] types;
if (!ReflectionAnalyzer.TryGetComplexTypes(property.Ext, out types)) continue;
foreach (var type in types) {
if (childTravellers.ContainsKey(type)) continue;
var dynamicTraveller = _dtContext.Get(type);
var interfaceType = typeof (IGraphTraveller<>).MakeGenericType(type);
var fieldBuilder = _classBuilder.DefinePrivateField(string.Concat("_traveller", type.Name, ++travellerIndex), interfaceType);
childTravellers.Add(type, new ChildTravellerInfo {
Field = fieldBuilder,
TravelWriteMethod = dynamicTraveller.TravelWriteMethod,
TravelReadMethod = dynamicTraveller.TravelReadMethod
});
var getFactoryCode = new CallMethodILCode(factoryArgument, members.ConstructVisitArgsWithTypeMethod, type);
var callConstructorCode = new CallConstructorILCode(dynamicTraveller.Constructor, getFactoryCode);
_constructorBuilder.IL.SetField(fieldBuilder, callConstructorCode);
//_constructorBuilder.IL.SetField(fieldBuilder, dynamicTraveller.Constructor);
}
}
_constructorBuilder.IL.Return();
var context = new TravellerContext(childTravellers, argFields);
BuildWriteMethods(target, context);
BuildReadMethods(target, context);
_classBuilder.Seal();
_dynamicTraveller.Complete(_classBuilder.Type);
}
private void BuildWriteMethods(SerializableType target, TravellerContext context)
{
var typedMethodBuilder = _travelWriteMethod;
var writeBuilder = new DynamicWriteTravellerBuilder(typedMethodBuilder, target, context);
writeBuilder.BuildTravelWriteMethod();
var untypedMethodBuilder = _classBuilder.DefineOverloadMethod("Travel", typeof(void), new[] { typeof(IWriteVisitor), typeof(object) });
var il = untypedMethodBuilder.IL;
il.LoadThis();
il.Var.Load(new MethodArgILCodeVariable(1, typeof(IWriteVisitor)));
il.Var.Load(new MethodArgILCodeVariable(2, typeof(object)));
il.Cast(target.Type);
il.Call(typedMethodBuilder.Method);
il.Return();
}