private static void EmitInvokeMapUnpackToHelper(Type targetType, SerializerEmitter emitter, CollectionTraits traits, TracingILGenerator il, int unpackerArgumentIndex, Action <TracingILGenerator> loadCollectionEmitting)
{
il.EmitAnyLdarg(unpackerArgumentIndex);
if (traits.ElementType.IsGenericType)
{
var keyType = traits.ElementType.GetGenericArguments()[0];
var valueType = traits.ElementType.GetGenericArguments()[1];
var keySerializerGetting = emitter.RegisterSerializer(keyType);
var valueSerializerGetting = emitter.RegisterSerializer(valueType);
keySerializerGetting(il, 0);
valueSerializerGetting(il, 0);
loadCollectionEmitting(il);
if (targetType.IsValueType)
{
il.EmitBox(targetType);
}
il.EmitAnyCall(Metadata._UnpackHelpers.UnpackMapTo_2.MakeGenericMethod(keyType, valueType));
}
else
{
loadCollectionEmitting(il);
if (targetType.IsValueType)
{
il.EmitBox(targetType);
}
il.EmitAnyCall(Metadata._UnpackHelpers.UnpackNonGenericMapTo);
}
}
public static void EmitGetUnpackerItemsCountAsInt32(TracingILGenerator il, int unpackerArgumentIndex, LocalVariableHolder localHolder)
{
Contract.Requires(il != null);
Contract.Requires(unpackerArgumentIndex >= 0);
il.EmitAnyLdloca(localHolder.RawItemsCount);
il.EmitInitobj(typeof(long));
il.BeginExceptionBlock();
il.EmitAnyLdarg(unpackerArgumentIndex);
il.EmitGetProperty(_Unpacker.ItemsCount);
il.EmitAnyStloc(localHolder.RawItemsCount);
il.BeginCatchBlock(typeof(InvalidOperationException));
il.EmitAnyCall(SerializationExceptions.NewIsIncorrectStreamMethod);
il.EmitThrow();
il.EndExceptionBlock();
il.EmitAnyLdloc(localHolder.RawItemsCount);
il.EmitLdc_I8(0x7fffffffL);
Label target = il.DefineLabel();
il.EmitBle_S(target);
il.EmitAnyCall(SerializationExceptions.NewIsTooLargeCollectionMethod);
il.EmitThrow();
il.MarkLabel(target);
il.EmitAnyLdloc(localHolder.RawItemsCount);
il.EmitConv_I4();
}
private static void EmitNilImplicationForPrimitive(TracingILGenerator il, SerializingMember member, LocalBuilder value, Label endOfDeserialization)
{
Label targetIfNotNull = il.DefineLabel("END_IF_NULL");
EmitCompareNull(il, value, targetIfNotNull);
switch (member.Contract.NilImplication)
{
case NilImplication.MemberDefault:
il.EmitBr(endOfDeserialization);
break;
case NilImplication.Null:
if (member.Member.GetMemberValueType().GetIsValueType() && (Nullable.GetUnderlyingType(member.Member.GetMemberValueType()) == null))
{
il.EmitLdstr(member.Contract.Name);
il.EmitLdtoken(member.Member.GetMemberValueType());
il.EmitAnyCall(_Type.GetTypeFromHandle);
il.EmitLdtoken(member.Member.DeclaringType);
il.EmitAnyCall(_Type.GetTypeFromHandle);
il.EmitAnyCall(SerializationExceptions.NewValueTypeCannotBeNull3Method);
il.EmitThrow();
}
break;
case NilImplication.Prohibit:
il.EmitLdstr(member.Contract.Name);
il.EmitAnyCall(SerializationExceptions.NewNullIsProhibitedMethod);
il.EmitThrow();
break;
}
il.MarkLabel(targetIfNotNull);
}
private static void EmitDeserializeValueCore(SerializerEmitter emitter, TracingILGenerator il, int unpackerArgumentIndex, LocalBuilder value, Type targetType, SerializingMember?member, string memberName, Label endOfDeserialization, LocalVariableHolder localHolder)
{
MethodInfo directReadMethod = _Unpacker.GetDirectReadMethod(value.LocalType);
if ((directReadMethod != null) && (!member.HasValue || !UnpackHelpers.IsReadOnlyAppendableCollectionMember(member.Value.Member)))
{
LocalBuilder isDeserializationSucceeded = localHolder.IsDeserializationSucceeded;
il.EmitLdc_I4_0();
il.EmitAnyStloc(isDeserializationSucceeded);
il.BeginExceptionBlock();
il.EmitAnyLdarg(unpackerArgumentIndex);
il.EmitAnyLdloca(value);
il.EmitAnyCall(directReadMethod);
il.EmitAnyStloc(isDeserializationSucceeded);
il.BeginCatchBlock(typeof(MessageTypeException));
LocalBuilder catchedException = localHolder.GetCatchedException(typeof(MessageTypeException));
il.EmitAnyStloc(catchedException);
il.EmitTypeOf(targetType);
il.EmitLdstr(memberName);
il.EmitAnyLdloc(catchedException);
il.EmitAnyCall(SerializationExceptions.NewFailedToDeserializeMemberMethod);
il.EmitThrow();
il.EndExceptionBlock();
Label target = il.DefineLabel("END_IF");
il.EmitAnyLdloc(isDeserializationSucceeded);
il.EmitBrtrue_S(target);
il.EmitAnyCall(SerializationExceptions.NewUnexpectedEndOfStreamMethod);
il.EmitThrow();
il.MarkLabel(target);
if (member.HasValue)
{
EmitNilImplicationForPrimitive(il, member.Value, value, endOfDeserialization);
}
}
else
{
EmitGeneralRead(il, unpackerArgumentIndex);
if (member.HasValue)
{
EmitNilImplication(il, unpackerArgumentIndex, member.Value.Contract.Name, member.Value.Contract.NilImplication, endOfDeserialization, localHolder);
}
Label label2 = il.DefineLabel("THEN_IF_COLLECTION");
Label label3 = il.DefineLabel("END_IF_COLLECTION");
il.EmitAnyLdarg(unpackerArgumentIndex);
il.EmitGetProperty(_Unpacker.IsArrayHeader);
il.EmitAnyLdarg(unpackerArgumentIndex);
il.EmitGetProperty(_Unpacker.IsMapHeader);
il.EmitOr();
il.EmitBrtrue_S(label2);
EmitUnpackFrom(emitter, il, value, unpackerArgumentIndex);
il.EmitBr_S(label3);
LocalBuilder subtreeUnpacker = localHolder.SubtreeUnpacker;
il.MarkLabel(label2);
EmitUnpackerBeginReadSubtree(il, unpackerArgumentIndex, subtreeUnpacker);
EmitUnpackFrom(emitter, il, value, subtreeUnpacker);
EmitUnpackerEndReadSubtree(il, subtreeUnpacker);
il.MarkLabel(label3);
}
}
/// <summary>
/// Emits the serializing value instructions.
/// </summary>
/// <param name="emitter">The emitter.</param>
/// <param name="il">The il generator.</param>
/// <param name="packerArgumentIndex">Index of the packer argument.</param>
/// <param name="valueType">Type of the current member value.</param>
/// <param name="memberName">Name of the current member.</param>
/// <param name="nilImplication">The nil implication of the current member.</param>
/// <param name="loadValueEmitter">The delegate which emits case specific value loading instructions.</param>
/// <param name="localHolder">The <see cref="LocalVariableHolder"/> which holds shared local variable information.</param>
public static void EmitSerializeValue(SerializerEmitter emitter, TracingILGenerator il, int packerArgumentIndex, Type valueType, string memberName, NilImplication nilImplication, Action <TracingILGenerator> loadValueEmitter, LocalVariableHolder localHolder)
{
Contract.Requires(emitter != null);
Contract.Requires(il != null);
Contract.Requires(packerArgumentIndex >= 0);
Contract.Requires(valueType != null);
Contract.Requires(loadValueEmitter != null);
/*
* var serializingValue = LOAD_VALUE;
* NULL_PROHIBIT_HANDLING
* GET_SERIALIZER.PackTo( packer, serializingValue );
*/
var value = localHolder.GetSerializingValue(valueType);
loadValueEmitter(il);
il.EmitAnyStloc(value);
if (memberName != null && nilImplication == NilImplication.Prohibit)
{
/*
* if( serializingValue == null )(
* {
* throw SerializationExceptions.NewNullIsProhibited();
* }
*/
if (!valueType.IsValueType)
{
il.EmitAnyLdloc(value);
var endIf = il.DefineLabel("END_IF");
il.EmitBrtrue_S(endIf);
il.EmitLdstr(memberName);
il.EmitAnyCall(SerializationExceptions.NewNullIsProhibitedMethod);
il.EmitThrow();
il.MarkLabel(endIf);
}
else if (Nullable.GetUnderlyingType(valueType) != null)
{
il.EmitAnyLdloca(value);
il.EmitGetProperty(typeof(Nullable <>).MakeGenericType(Nullable.GetUnderlyingType(valueType)).GetProperty("HasValue"));
var endIf = il.DefineLabel("END_IF");
il.EmitBrtrue_S(endIf);
il.EmitLdstr(memberName);
il.EmitAnyCall(SerializationExceptions.NewNullIsProhibitedMethod);
il.EmitThrow();
il.MarkLabel(endIf);
}
}
var serializerGetter = emitter.RegisterSerializer(valueType);
serializerGetter(il, 0);
il.EmitAnyLdarg(packerArgumentIndex);
il.EmitAnyLdloc(value);
il.EmitAnyCall(typeof(MessagePackSerializer <>).MakeGenericType(valueType).GetMethod("PackTo"));
}
public static void EmitGeneralRead(TracingILGenerator il, int unpackerArgumentIndex)
{
il.EmitAnyLdarg(unpackerArgumentIndex);
il.EmitAnyCall(_Unpacker.Read);
Label target = il.DefineLabel("END_IF");
il.EmitBrtrue_S(target);
il.EmitAnyCall(SerializationExceptions.NewUnexpectedEndOfStreamMethod);
il.EmitThrow();
il.MarkLabel(target);
}
private static void CreatePacking(SerializerEmitter emitter)
{
Action <TracingILGenerator> loadValueEmitter = null;
TracingILGenerator il = emitter.GetPackToMethodILGenerator();
try
{
Label target = il.DefineLabel("END_IF");
Label label2 = il.DefineLabel("END_METHOD");
il.EmitAnyLdarga(2);
il.EmitGetProperty(NullableMessagePackSerializer <T> ._nullableTHasValueProperty);
il.EmitBrtrue_S(target);
il.EmitAnyLdarg(1);
il.EmitAnyCall(NullableMessagePackSerializer.PackerPackNull);
il.EmitPop();
il.EmitBr_S(label2);
il.MarkLabel(target);
if (loadValueEmitter == null)
{
loadValueEmitter = delegate(TracingILGenerator il0) {
il0.EmitAnyLdarga(2);
il.EmitGetProperty(NullableMessagePackSerializer <T> ._nullableTValueProperty);
};
}
Emittion.EmitSerializeValue(emitter, il, 1, NullableMessagePackSerializer <T> ._nullableTValueProperty.PropertyType, null, NilImplication.MemberDefault, loadValueEmitter, new LocalVariableHolder(il));
il.MarkLabel(label2);
il.EmitRet();
}
finally
{
il.FlushTrace();
emitter.FlushTrace();
}
}
public static void EmitUnpackFrom(SerializerEmitter emitter, TracingILGenerator il, LocalBuilder result, LocalBuilder unpacker)
{
emitter.RegisterSerializer(result.LocalType)(il, 0);
il.EmitAnyLdloc(unpacker);
il.EmitAnyCall(_UnpackHelpers.InvokeUnpackFrom_1Method.MakeGenericMethod(new Type[] { result.LocalType }));
il.EmitAnyStloc(result);
}
public static void EmitUnpackerEndReadSubtree(TracingILGenerator il, LocalBuilder subtreeUnpacker)
{
Contract.Requires(il != null);
Contract.Requires(subtreeUnpacker != null);
/*
* finally
* {
* if( subtreeUnpacker != null )
* {
* subtreeUnpacker.Dispose();
* }
* }
*/
il.BeginFinallyBlock();
il.EmitAnyLdloc(subtreeUnpacker);
var endIf = il.DefineLabel("END_IF");
il.EmitBrfalse_S(endIf);
il.EmitAnyLdloc(subtreeUnpacker);
il.EmitAnyCall(Metadata._IDisposable.Dispose);
il.MarkLabel(endIf);
il.EndExceptionBlock();
}
protected override void EmitPackMembers(SerializerEmitter emitter, TracingILGenerator packerIL, SerializingMember[] entries)
{
var localHolder = new LocalVariableHolder(packerIL);
packerIL.EmitAnyLdarg(1);
packerIL.EmitAnyLdc_I4(entries.Length);
packerIL.EmitAnyCall(Metadata._Packer.PackArrayHeader);
packerIL.EmitPop();
foreach (var member in entries)
{
if (member.Member == null)
{
// missing member, always nil
packerIL.EmitAnyLdarg(1);
packerIL.EmitAnyCall(Metadata._Packer.PackNull);
packerIL.EmitPop();
}
else
{
Emittion.EmitSerializeValue(
emitter,
packerIL,
1,
member.Member.GetMemberValueType(),
member.Member.Name,
member.Contract.NilImplication,
il =>
{
if (typeof(TObject).IsValueType)
{
il.EmitAnyLdarga(2);
}
else
{
il.EmitAnyLdarg(2);
}
Emittion.EmitLoadValue(il, member.Member);
},
localHolder
);
}
}
packerIL.EmitRet();
}
protected sealed override void EmitPackMembers(SerializerEmitter emitter, TracingILGenerator packerIL, SerializingMember[] entries)
{
var localHolder = new LocalVariableHolder(packerIL);
packerIL.EmitAnyLdarg(1);
packerIL.EmitAnyLdc_I4(entries.Length);
packerIL.EmitAnyCall(Metadata._Packer.PackMapHeader);
packerIL.EmitPop();
foreach (var entry in entries)
{
if (entry.Member == null)
{
// skip undefined member.
continue;
}
packerIL.EmitAnyLdarg(1);
packerIL.EmitLdstr(entry.Contract.Name);
packerIL.EmitAnyCall(Metadata._Packer.PackString);
packerIL.EmitPop();
Emittion.EmitSerializeValue(
emitter,
packerIL,
1,
entry.Member.GetMemberValueType(),
entry.Contract.Name,
entry.Contract.NilImplication,
il0 =>
{
if (typeof(TObject).IsValueType)
{
il0.EmitAnyLdarga(2);
}
else
{
il0.EmitAnyLdarg(2);
}
Emittion.EmitLoadValue(il0, entry.Member);
},
localHolder
);
}
packerIL.EmitRet();
}
private static void EmitUnpackMembersFromMap(SerializerEmitter emitter, TracingILGenerator unpackerIL, SerializingMember[] entries, LocalBuilder result, LocalVariableHolder localHolder)
{
Label label = unpackerIL.DefineLabel("BEGIN_LOOP");
Label target = unpackerIL.DefineLabel("END_LOOP");
unpackerIL.MarkLabel(label);
LocalBuilder memberName = localHolder.MemberName;
unpackerIL.EmitAnyLdarg(1);
unpackerIL.EmitAnyLdloca(memberName);
unpackerIL.EmitAnyCall(_Unpacker.ReadString);
unpackerIL.EmitBrfalse(target);
LocalBuilder unpackedData = localHolder.UnpackedData;
LocalBuilder unpackedDataValue = localHolder.UnpackedDataValue;
for (int i = 0; i < entries.Length; i++)
{
if (entries[i].Contract.Name != null)
{
unpackerIL.EmitAnyLdloc(memberName);
unpackerIL.EmitLdstr(entries[i].Contract.Name);
unpackerIL.EmitAnyCall(_String.op_Equality);
Label label3 = unpackerIL.DefineLabel("END_IF_MEMBER_" + i);
unpackerIL.EmitBrfalse(label3);
if (entries[i].Member == null)
{
Emittion.EmitGeneralRead(unpackerIL, 1);
}
else if (UnpackHelpers.IsReadOnlyAppendableCollectionMember(entries[i].Member))
{
Emittion.EmitDeserializeCollectionValue(emitter, unpackerIL, 1, result, entries[i].Member, entries[i].Member.GetMemberValueType(), entries[i].Contract.NilImplication, localHolder);
}
else
{
Emittion.EmitDeserializeValue(emitter, unpackerIL, 1, result, entries[i], localHolder);
}
unpackerIL.EmitBr(label);
unpackerIL.MarkLabel(label3);
}
}
unpackerIL.EmitAnyLdarg(1);
unpackerIL.EmitCallvirt(_Unpacker.Read);
unpackerIL.EmitPop();
unpackerIL.EmitBr(label);
unpackerIL.MarkLabel(target);
}
/// <summary>
/// Emits gets <see cref="Unpacker.ItemsCount"/> with exception handling.
/// Note that final state is the value is pushed top of the evaluation stack.
/// </summary>
/// <param name="il">IL generator.</param>
/// <param name="unpackerArgumentIndex">Argument index of the unpacker.</param>
/// <param name="localHolder">The <see cref="LocalVariableHolder"/> which holds shared local variable information.</param>
public static void EmitGetUnpackerItemsCountAsInt32(TracingILGenerator il, int unpackerArgumentIndex, LocalVariableHolder localHolder)
{
Contract.Requires(il != null);
Contract.Requires(unpackerArgumentIndex >= 0);
/*
* long rawItemsCount;
* try
* {
* rawItemsCount = unpacker.ItemsCount;
* }
* catch ( InvalidOperationException ex )
* {
* throw SerializationExceptions.NewIsIncorrectStream( ex );
* }
*
* if( rawItemsCount > Int32.MaxValue )
* {
* throw SerializationException.NewIsTooLargeCollection();
* }
*
* ... unchecked( ( int )rawItemsCount );
*/
il.EmitAnyLdloca(localHolder.RawItemsCount);
il.EmitInitobj(typeof(long));
il.BeginExceptionBlock();
il.EmitAnyLdarg(unpackerArgumentIndex);
il.EmitGetProperty(Metadata._Unpacker.ItemsCount);
il.EmitAnyStloc(localHolder.RawItemsCount);
il.BeginCatchBlock(typeof(InvalidOperationException));
il.EmitAnyCall(SerializationExceptions.NewIsIncorrectStreamMethod);
il.EmitThrow();
il.EndExceptionBlock();
il.EmitAnyLdloc(localHolder.RawItemsCount);
il.EmitLdc_I8(Int32.MaxValue);
var endIf = il.DefineLabel();
il.EmitBle_S(endIf);
il.EmitAnyCall(SerializationExceptions.NewIsTooLargeCollectionMethod);
il.EmitThrow();
il.MarkLabel(endIf);
il.EmitAnyLdloc(localHolder.RawItemsCount);
il.EmitConv_I4();
}
/// <summary>
/// Emits unpacking method with flavor specific getter.
/// </summary>
/// <param name="emitter">SerializerEmitter which knows the emittion flavor.</param>
/// <param name="il">The il generator.</param>
/// <param name="result">A variable wich stores unpacked result.</param>
/// <param name="unpacker">The local variable which stores current Unpacker.</param>
public static void EmitUnpackFrom(SerializerEmitter emitter, TracingILGenerator il, LocalBuilder result, LocalBuilder unpacker)
{
var serializerGetter = emitter.RegisterSerializer(result.LocalType);
serializerGetter(il, 0);
il.EmitAnyLdloc(unpacker);
il.EmitAnyCall(Metadata._UnpackHelpers.InvokeUnpackFrom_1Method.MakeGenericMethod(result.LocalType));
il.EmitAnyStloc(result);
}
public static void EmitUnpackerBeginReadSubtree(TracingILGenerator il, int unpackerArgumentIndex, LocalBuilder subtreeUnpacker)
{
Contract.Requires(il != null);
Contract.Requires(unpackerArgumentIndex >= 0);
Contract.Requires(subtreeUnpacker != null);
il.EmitAnyLdarg(unpackerArgumentIndex);
il.EmitAnyCall(_Unpacker.ReadSubtree);
il.EmitAnyStloc(subtreeUnpacker);
il.BeginExceptionBlock();
}
private static void EmitWrapperInvocation(ServiceInvokerEmitter emitter, TracingILGenerator il, LocalBuilder service, MethodInfo targetOperation, LocalBuilder[] unpackedArguments)
{
/*
* returnValue = Task.Factory.StartNew( this.PrivateInvokeCore( state as Tuple<...> ), new Tuple<...>(...) );
*/
var itemTypes = Enumerable.Repeat(service, 1).Concat(unpackedArguments).Select(item => item.LocalType).ToArray();
var tupleTypes = TupleItems.CreateTupleTypeList(itemTypes);
EmitPrivateInvoke(emitter.GetPrivateInvokeMethodILGenerator(targetOperation.ReturnType), targetOperation, tupleTypes, itemTypes);
il.EmitGetProperty(_taskFactoryProperty);
// new DELEGATE( PrivateInvoke ) ->new DELGATE( null, funcof( PrivateInvoke ) )
il.EmitLdarg_0();
il.EmitLdftn(emitter.PrivateInvokeMethod);
il.EmitNewobj(
targetOperation.ReturnType == typeof(void)
? typeof(Action <object>).GetConstructor(_delegateConstructorParameterTypes)
: typeof(Func <,>).MakeGenericType(typeof(object), targetOperation.ReturnType).GetConstructor(_delegateConstructorParameterTypes)
);
il.EmitAnyLdloc(service);
foreach (var item in unpackedArguments)
{
il.EmitAnyLdloc(item);
}
foreach (var tupleType in tupleTypes)
{
il.EmitNewobj(tupleType.GetConstructors().Single());
}
if (targetOperation.ReturnType == typeof(void))
{
il.EmitAnyCall(_taskFactoryStartNew_Action_1_Object_Object);
}
else
{
il.EmitAnyCall(_taskFactoryStartNew_Func_1_Object_T_Object.MakeGenericMethod(targetOperation.ReturnType));
}
}
public static void EmitSerializeValue(SerializerEmitter emitter, TracingILGenerator il, int packerArgumentIndex, Type valueType, string memberName, NilImplication nilImplication, Action <TracingILGenerator> loadValueEmitter, LocalVariableHolder localHolder)
{
Contract.Requires(emitter != null);
Contract.Requires(il != null);
Contract.Requires(packerArgumentIndex >= 0);
Contract.Requires(valueType != null);
Contract.Requires(loadValueEmitter != null);
LocalBuilder serializingValue = localHolder.GetSerializingValue(valueType);
loadValueEmitter(il);
il.EmitAnyStloc(serializingValue);
if ((memberName != null) && (nilImplication == NilImplication.Prohibit))
{
Label label;
if (!valueType.IsValueType)
{
il.EmitAnyLdloc(serializingValue);
label = il.DefineLabel("END_IF");
il.EmitBrtrue_S(label);
il.EmitLdstr(memberName);
il.EmitAnyCall(SerializationExceptions.NewNullIsProhibitedMethod);
il.EmitThrow();
il.MarkLabel(label);
}
else if (Nullable.GetUnderlyingType(valueType) != null)
{
il.EmitAnyLdloca(serializingValue);
il.EmitGetProperty(typeof(Nullable <>).MakeGenericType(new Type[] { Nullable.GetUnderlyingType(valueType) }).GetProperty("HasValue"));
label = il.DefineLabel("END_IF");
il.EmitBrtrue_S(label);
il.EmitLdstr(memberName);
il.EmitAnyCall(SerializationExceptions.NewNullIsProhibitedMethod);
il.EmitThrow();
il.MarkLabel(label);
}
}
emitter.RegisterSerializer(valueType)(il, 0);
il.EmitAnyLdarg(packerArgumentIndex);
il.EmitAnyLdloc(serializingValue);
il.EmitAnyCall(typeof(MessagePackSerializer <>).MakeGenericType(new Type[] { valueType }).GetMethod("PackTo"));
}
protected override void EmitPackMembers(SerializerEmitter emitter, TracingILGenerator packerIL, SerializingMember[] entries)
{
LocalVariableHolder localHolder = new LocalVariableHolder(packerIL);
packerIL.EmitAnyLdarg(1);
packerIL.EmitAnyLdc_I4(entries.Length);
packerIL.EmitAnyCall(_Packer.PackArrayHeader);
packerIL.EmitPop();
SerializingMember[] memberArray = entries;
for (int i = 0; i < memberArray.Length; i++)
{
Action <TracingILGenerator> loadValueEmitter = null;
SerializingMember member = memberArray[i];
if (member.Member == null)
{
packerIL.EmitAnyLdarg(1);
packerIL.EmitAnyCall(_Packer.PackNull);
packerIL.EmitPop();
}
else
{
if (loadValueEmitter == null)
{
loadValueEmitter = delegate(TracingILGenerator il) {
if (typeof(TObject).IsValueType)
{
il.EmitAnyLdarga(2);
}
else
{
il.EmitAnyLdarg(2);
}
Emittion.EmitLoadValue(il, member.Member);
};
}
Emittion.EmitSerializeValue(emitter, packerIL, 1, member.Member.GetMemberValueType(), member.Member.Name, member.Contract.NilImplication, loadValueEmitter, localHolder);
}
}
packerIL.EmitRet();
}
private static void CreateArrayUnpackFrom(Type targetType, SerializerEmitter emitter, CollectionTraits traits)
{
Action <TracingILGenerator> initialCountLoadingEmitter = null;
TracingILGenerator unpackFromMethodILGenerator = emitter.GetUnpackFromMethodILGenerator();
LocalVariableHolder localHolder = new LocalVariableHolder(unpackFromMethodILGenerator);
try
{
LocalBuilder collection;
if (targetType.IsInterface || targetType.IsAbstract)
{
unpackFromMethodILGenerator.EmitTypeOf(targetType);
unpackFromMethodILGenerator.EmitAnyCall(SerializationExceptions.NewNotSupportedBecauseCannotInstanciateAbstractTypeMethod);
unpackFromMethodILGenerator.EmitThrow();
}
else
{
unpackFromMethodILGenerator.EmitAnyLdarg(1);
unpackFromMethodILGenerator.EmitGetProperty(_Unpacker.IsArrayHeader);
Label target = unpackFromMethodILGenerator.DefineLabel("END_IF");
unpackFromMethodILGenerator.EmitBrtrue_S(target);
unpackFromMethodILGenerator.EmitAnyCall(SerializationExceptions.NewIsNotArrayHeaderMethod);
unpackFromMethodILGenerator.EmitThrow();
unpackFromMethodILGenerator.MarkLabel(target);
collection = localHolder.GetDeserializingCollection(targetType);
if (initialCountLoadingEmitter == null)
{
initialCountLoadingEmitter = il0 => Emittion.EmitGetUnpackerItemsCountAsInt32(il0, 1, localHolder);
}
Emittion.EmitConstruction(unpackFromMethodILGenerator, collection, initialCountLoadingEmitter);
EmitInvokeArrayUnpackToHelper(targetType, emitter, traits, unpackFromMethodILGenerator, 1, il0 => il0.EmitAnyLdloc(collection));
unpackFromMethodILGenerator.EmitAnyLdloc(collection);
unpackFromMethodILGenerator.EmitRet();
}
}
finally
{
unpackFromMethodILGenerator.FlushTrace();
}
}
public static void EmitUnpackerEndReadSubtree(TracingILGenerator il, LocalBuilder subtreeUnpacker)
{
Contract.Requires(il != null);
Contract.Requires(subtreeUnpacker != null);
il.BeginFinallyBlock();
il.EmitAnyLdloc(subtreeUnpacker);
Label target = il.DefineLabel("END_IF");
il.EmitBrfalse_S(target);
il.EmitAnyLdloc(subtreeUnpacker);
il.EmitAnyCall(_IDisposable.Dispose);
il.MarkLabel(target);
il.EndExceptionBlock();
}
public static void EmitNilImplication(TracingILGenerator il, int unpackerArgumentIndex, string memberName, NilImplication nilImplication, Label endOfDeserialization, LocalVariableHolder localHolder)
{
LocalBuilder unpackedData;
LocalBuilder unpackedDataValue;
switch (nilImplication)
{
case NilImplication.MemberDefault:
il.EmitAnyLdarg(unpackerArgumentIndex);
il.EmitGetProperty(_Unpacker.Data);
unpackedData = localHolder.UnpackedData;
il.EmitAnyStloc(unpackedData);
il.EmitAnyLdloca(unpackedData);
il.EmitGetProperty(_Nullable <MessagePackObject> .Value);
unpackedDataValue = localHolder.UnpackedDataValue;
il.EmitAnyStloc(unpackedDataValue);
il.EmitAnyLdloca(unpackedDataValue);
il.EmitGetProperty(_MessagePackObject.IsNil);
il.EmitBrtrue(endOfDeserialization);
break;
case NilImplication.Prohibit:
{
il.EmitAnyLdarg(unpackerArgumentIndex);
il.EmitGetProperty(_Unpacker.Data);
unpackedData = localHolder.UnpackedData;
il.EmitAnyStloc(unpackedData);
il.EmitAnyLdloca(unpackedData);
il.EmitGetProperty(_Nullable <MessagePackObject> .Value);
unpackedDataValue = localHolder.UnpackedDataValue;
il.EmitAnyStloc(unpackedDataValue);
il.EmitAnyLdloca(unpackedDataValue);
il.EmitGetProperty(_MessagePackObject.IsNil);
Label target = il.DefineLabel("END_IF0");
il.EmitBrfalse_S(target);
il.EmitLdstr(memberName);
il.EmitAnyCall(SerializationExceptions.NewNullIsProhibitedMethod);
il.EmitThrow();
il.MarkLabel(target);
break;
}
}
}
private static void CreateUnpacking(SerializerEmitter emitter)
{
TracingILGenerator unpackFromMethodILGenerator = emitter.GetUnpackFromMethodILGenerator();
try
{
LocalBuilder local = unpackFromMethodILGenerator.DeclareLocal(typeof(MessagePackObject?), "mayBeNullData");
LocalBuilder builder2 = unpackFromMethodILGenerator.DeclareLocal(typeof(MessagePackObject), "data");
LocalBuilder builder3 = unpackFromMethodILGenerator.DeclareLocal(typeof(T), "result");
LocalBuilder result = unpackFromMethodILGenerator.DeclareLocal(NullableMessagePackSerializer <T> ._nullableTValueProperty.PropertyType, "value");
Label target = unpackFromMethodILGenerator.DefineLabel("END_IF");
Label label2 = unpackFromMethodILGenerator.DefineLabel("END_METHOD");
unpackFromMethodILGenerator.EmitAnyLdarg(1);
unpackFromMethodILGenerator.EmitGetProperty(NullableMessagePackSerializer.UnpackerDataProperty);
unpackFromMethodILGenerator.EmitAnyStloc(local);
unpackFromMethodILGenerator.EmitAnyLdloca(local);
unpackFromMethodILGenerator.EmitGetProperty(NullableMessagePackSerializer.Nullable_MessagePackObject_ValueProperty);
unpackFromMethodILGenerator.EmitAnyStloc(builder2);
unpackFromMethodILGenerator.EmitAnyLdloca(builder2);
unpackFromMethodILGenerator.EmitGetProperty(NullableMessagePackSerializer.MessagePackObject_IsNilProperty);
unpackFromMethodILGenerator.EmitBrfalse_S(target);
unpackFromMethodILGenerator.EmitAnyLdloca(builder3);
unpackFromMethodILGenerator.EmitInitobj(builder3.LocalType);
unpackFromMethodILGenerator.EmitBr_S(label2);
unpackFromMethodILGenerator.MarkLabel(target);
Emittion.EmitUnpackFrom(emitter, unpackFromMethodILGenerator, result, 1);
unpackFromMethodILGenerator.EmitAnyLdloc(result);
unpackFromMethodILGenerator.EmitAnyCall(NullableMessagePackSerializer <T> ._nullableTImplicitOperator);
unpackFromMethodILGenerator.EmitAnyStloc(builder3);
unpackFromMethodILGenerator.MarkLabel(label2);
unpackFromMethodILGenerator.EmitAnyLdloc(builder3);
unpackFromMethodILGenerator.EmitRet();
}
finally
{
unpackFromMethodILGenerator.FlushTrace();
emitter.FlushTrace();
}
}
/// <summary>
/// Emits the nil implication.
/// </summary>
/// <param name="il">The il generator.</param>
/// <param name="unpackerArgumentIndex">Index of the unpacker argument.</param>
/// <param name="memberName">Name of the deserializing member.</param>
/// <param name="nilImplication">The nil implication.</param>
/// <param name="endOfDeserialization">The label to the end of deserialization.</param>
/// <param name="localHolder">The <see cref="LocalVariableHolder"/> which holds shared local variable information.</param>
public static void EmitNilImplication(
TracingILGenerator il,
int unpackerArgumentIndex,
string memberName,
NilImplication nilImplication,
Label endOfDeserialization,
LocalVariableHolder localHolder
)
{
switch (nilImplication)
{
case NilImplication.MemberDefault:
{
// TODO: This should be empty for extra items.
/*
* if( unpacker.Data.Value.IsNil )
* {
* // Skip current.
* goto END_OF_DESERIALIZATION;
* }
*/
il.EmitAnyLdarg(unpackerArgumentIndex);
il.EmitGetProperty(Metadata._Unpacker.Data);
var data = localHolder.UnpackedData;
il.EmitAnyStloc(data);
il.EmitAnyLdloca(data);
il.EmitGetProperty(Metadata._Nullable <MessagePackObject> .Value);
var dataValue = localHolder.UnpackedDataValue;
il.EmitAnyStloc(dataValue);
il.EmitAnyLdloca(dataValue);
il.EmitGetProperty(Metadata._MessagePackObject.IsNil);
il.EmitBrtrue(endOfDeserialization);
break;
}
case NilImplication.Prohibit:
{
/*
* if( unpacker.Data.Value.IsNil )
* {
* throw SerializationEceptions.NewProhibitNullException( "..." );
* }
*/
il.EmitAnyLdarg(unpackerArgumentIndex);
il.EmitGetProperty(Metadata._Unpacker.Data);
var data = localHolder.UnpackedData;
il.EmitAnyStloc(data);
il.EmitAnyLdloca(data);
il.EmitGetProperty(Metadata._Nullable <MessagePackObject> .Value);
var dataValue = localHolder.UnpackedDataValue;
il.EmitAnyStloc(dataValue);
il.EmitAnyLdloca(dataValue);
il.EmitGetProperty(Metadata._MessagePackObject.IsNil);
var endIf0 = il.DefineLabel("END_IF0");
il.EmitBrfalse_S(endIf0);
il.EmitLdstr(memberName);
il.EmitAnyCall(SerializationExceptions.NewNullIsProhibitedMethod);
il.EmitThrow();
il.MarkLabel(endIf0);
break;
}
}
}
/// <summary>
/// Emits helper function to avoid lexical closure emitting.
/// </summary>
/// <param name="il"><see cref="TracingILGenerator"/>.</param>
/// <param name="targetOperation"><see cref="MethodInfo"/> of the method to be invoked.</param>
/// <param name="tupleTypes">The array of <see cref="Type"/> of nested tuples. The outermost is the first, innermost is the last.</param>
/// <param name="itemTypes">The array of <see cref="Type"/> of flatten tuple items.</param>
private static void EmitPrivateInvoke(TracingILGenerator il, MethodInfo targetOperation, IList <Type> tupleTypes, Type[] itemTypes)
{
/*
* private void/T PrivateInvoke( object state )
* {
* T result;
* Dispatcher.BeginOperation();
* try
* {
* var tuple = state as Tuple<...>;
* result =
* tuple.Item1.Target(
* tuple.Item2,
* :
* tuple.Rest.Rest....ItemN
* );
* }
* catch( TheradAbortException )
* {
* Dispatcher.HandleThreadAbortException( ex );
* }
* finally
* {
* Dispatcher.EndOperation();
* }
*
* return result;
* }
*/
var tuple = il.DeclareLocal(tupleTypes.First(), "tuple");
var result = targetOperation.ReturnType == typeof(void) ? null : il.DeclareLocal(targetOperation.ReturnType, "result");
il.EmitAnyLdarg(0);
il.EmitCall(_dispatcherBeginOperationMethod);
il.BeginExceptionBlock();
il.EmitAnyLdarg(1);
il.EmitIsinst(tupleTypes.First());
il.EmitAnyStloc(tuple);
int depth = -1;
for (int i = 0; i < itemTypes.Length; i++)
{
if (i % 7 == 0)
{
depth++;
}
il.EmitAnyLdloc(tuple);
for (int j = 0; j < depth; j++)
{
// .TRest.TRest ...
var rest = tupleTypes[j].GetProperty("Rest");
il.EmitGetProperty(rest);
}
var itemn = tupleTypes[depth].GetProperty("Item" + ((i % 7) + 1));
il.EmitGetProperty(itemn);
}
il.EmitAnyCall(targetOperation);
if (targetOperation.ReturnType != typeof(void))
{
il.EmitAnyStloc(result);
}
il.BeginCatchBlock(typeof(ThreadAbortException));
var ex = il.DeclareLocal(typeof(ThreadAbortException), "ex");
il.EmitAnyStloc(ex);
il.EmitAnyLdarg(0);
il.EmitAnyLdloc(ex);
il.EmitCall(_dispatcherHandleThreadAbortExceptionMethod);
il.BeginFinallyBlock();
il.EmitAnyLdarg(0);
il.EmitCall(_dispatcherEndOperationMethod);
il.EndExceptionBlock();
if (targetOperation.ReturnType != typeof(void))
{
il.EmitAnyLdloc(result);
}
il.EmitRet();
}
/// <summary>
/// Emits 'foreach' statement on the IL stream.
/// </summary>
/// <param name="il">IL generator to be emitted to.</param>
/// <param name="traits"><see cref="CollectionTraits"/> which contains traits of the iterating collection.</param>
/// <param name="collection">'collection' argument index.</param>
/// <param name="bodyEmitter">Delegate to emit body statement.</param>
public static void EmitForEach(TracingILGenerator il, CollectionTraits traits, LocalBuilder collection, Action <TracingILGenerator, Action> bodyEmitter)
{
Contract.Requires(il != null);
Contract.Requires(collection != null);
Contract.Requires(bodyEmitter != null);
var enumerator = il.DeclareLocal(traits.GetEnumeratorMethod.ReturnType, "enumerator");
// gets enumerator
if (collection.LocalType.IsValueType)
{
il.EmitAnyLdloca(collection);
}
else
{
il.EmitAnyLdloc(collection);
}
il.EmitAnyCall(traits.GetEnumeratorMethod);
il.EmitAnyStloc(enumerator);
if (typeof(IDisposable).IsAssignableFrom(traits.GetEnumeratorMethod.ReturnType))
{
il.BeginExceptionBlock();
}
var startLoop = il.DefineLabel("START_LOOP");
il.MarkLabel(startLoop);
var endLoop = il.DefineLabel("END_LOOP");
var enumeratorType = traits.GetEnumeratorMethod.ReturnType;
MethodInfo moveNextMethod = enumeratorType.GetMethod("MoveNext", Type.EmptyTypes);
PropertyInfo currentProperty = traits.GetEnumeratorMethod.ReturnType.GetProperty("Current");
if (moveNextMethod == null)
{
moveNextMethod = Metadata._IEnumerator.MoveNext;
}
if (currentProperty == null)
{
if (enumeratorType == typeof(IDictionaryEnumerator))
{
currentProperty = Metadata._IDictionaryEnumerator.Current;
}
else if (enumeratorType.IsInterface)
{
if (enumeratorType.IsGenericType && enumeratorType.GetGenericTypeDefinition() == typeof(IEnumerator <>))
{
currentProperty = typeof(IEnumerator <>).MakeGenericType(traits.ElementType).GetProperty("Current");
}
else
{
currentProperty = Metadata._IEnumerator.Current;
}
}
}
Contract.Assert(currentProperty != null, enumeratorType.ToString());
// iterates
if (traits.GetEnumeratorMethod.ReturnType.IsValueType)
{
il.EmitAnyLdloca(enumerator);
}
else
{
il.EmitAnyLdloc(enumerator);
}
il.EmitAnyCall(moveNextMethod);
il.EmitBrfalse(endLoop);
bodyEmitter(
il,
() =>
{
if (traits.GetEnumeratorMethod.ReturnType.IsValueType)
{
il.EmitAnyLdloca(enumerator);
}
else
{
il.EmitAnyLdloc(enumerator);
}
il.EmitGetProperty(currentProperty);
}
);
il.EmitBr(startLoop);
il.MarkLabel(endLoop);
// Dispose
if (typeof(IDisposable).IsAssignableFrom(traits.GetEnumeratorMethod.ReturnType))
{
il.BeginFinallyBlock();
if (traits.GetEnumeratorMethod.ReturnType.IsValueType)
{
var disposeMethod = traits.GetEnumeratorMethod.ReturnType.GetMethod("Dispose");
if (disposeMethod != null && disposeMethod.GetParameters().Length == 0 && disposeMethod.ReturnType == typeof(void))
{
il.EmitAnyLdloca(enumerator);
il.EmitAnyCall(disposeMethod);
}
else
{
il.EmitAnyLdloc(enumerator);
il.EmitBox(traits.GetEnumeratorMethod.ReturnType);
il.EmitAnyCall(Metadata._IDisposable.Dispose);
}
}
else
{
il.EmitAnyLdloc(enumerator);
il.EmitAnyCall(Metadata._IDisposable.Dispose);
}
il.EndExceptionBlock();
}
}
public static void EmitDeserializeCollectionValue(SerializerEmitter emitter, TracingILGenerator il, int unpackerArgumentIndex, LocalBuilder target, MemberInfo member, Type memberType, NilImplication nilImplication, LocalVariableHolder localHolder)
{
LocalBuilder unpackedData;
LocalBuilder unpackedDataValue;
Label label2;
Label label3;
Contract.Requires(emitter != null);
Contract.Requires(il != null);
Contract.Requires(unpackerArgumentIndex >= 0);
Contract.Requires(target != null);
Contract.Requires(member != null);
Contract.Requires(memberType != null);
Contract.Requires(localHolder != null);
Label label = il.DefineLabel("END_OF_DESERIALIZATION");
EmitGeneralRead(il, unpackerArgumentIndex);
switch (nilImplication)
{
case NilImplication.MemberDefault:
il.EmitAnyLdarg(unpackerArgumentIndex);
il.EmitGetProperty(_Unpacker.Data);
unpackedData = localHolder.UnpackedData;
il.EmitAnyStloc(unpackedData);
il.EmitAnyLdloca(unpackedData);
il.EmitGetProperty(_Nullable <MessagePackObject> .Value);
unpackedDataValue = localHolder.UnpackedDataValue;
il.EmitAnyStloc(unpackedDataValue);
il.EmitAnyLdloca(unpackedDataValue);
il.EmitGetProperty(_MessagePackObject.IsNil);
il.EmitBrtrue(label);
goto Label_01B5;
case NilImplication.Null:
case NilImplication.Prohibit:
il.EmitAnyLdarg(unpackerArgumentIndex);
il.EmitGetProperty(_Unpacker.Data);
unpackedData = localHolder.UnpackedData;
il.EmitAnyStloc(unpackedData);
il.EmitAnyLdloca(unpackedData);
il.EmitGetProperty(_Nullable <MessagePackObject> .Value);
unpackedDataValue = localHolder.UnpackedDataValue;
il.EmitAnyStloc(unpackedDataValue);
il.EmitAnyLdloca(unpackedDataValue);
il.EmitGetProperty(_MessagePackObject.IsNil);
label2 = il.DefineLabel("END_IF0");
il.EmitBrfalse_S(label2);
il.EmitLdstr(member.Name);
if (nilImplication != NilImplication.Prohibit)
{
il.EmitAnyCall(SerializationExceptions.NewReadOnlyMemberItemsMustNotBeNullMethod);
break;
}
il.EmitAnyCall(SerializationExceptions.NewNullIsProhibitedMethod);
break;
default:
goto Label_01B5;
}
il.EmitThrow();
il.MarkLabel(label2);
Label_01B5:
label3 = il.DefineLabel("THEN");
Action <TracingILGenerator, int> action = emitter.RegisterSerializer(memberType);
il.EmitAnyLdarg(unpackerArgumentIndex);
il.EmitGetProperty(_Unpacker.IsArrayHeader);
il.EmitBrtrue_S(label3);
il.EmitAnyLdarg(unpackerArgumentIndex);
il.EmitGetProperty(_Unpacker.IsMapHeader);
il.EmitBrtrue_S(label3);
il.EmitLdstr(member.Name);
il.EmitAnyCall(SerializationExceptions.NewStreamDoesNotContainCollectionForMemberMethod);
il.EmitThrow();
LocalBuilder subtreeUnpacker = localHolder.SubtreeUnpacker;
il.MarkLabel(label3);
EmitUnpackerBeginReadSubtree(il, unpackerArgumentIndex, subtreeUnpacker);
action(il, 0);
il.EmitAnyLdloc(subtreeUnpacker);
il.EmitAnyLdloc(target);
EmitLoadValue(il, member);
il.EmitAnyCall(typeof(MessagePackSerializer <>).MakeGenericType(new Type[] { memberType }).GetMethod("UnpackTo", new Type[] { typeof(Unpacker), memberType }));
EmitUnpackerEndReadSubtree(il, subtreeUnpacker);
il.MarkLabel(label);
}
/// <summary>
/// Emits the deserialize collection value.
/// </summary>
/// <param name="emitter">The emitter.</param>
/// <param name="il">The il generator.</param>
/// <param name="unpackerArgumentIndex">Index of the unpacker argument.</param>
/// <param name="target">The target collection variable.</param>
/// <param name="member">The deserializing member metadata which holds the collection.</param>
/// <param name="memberType">Type of the deserializing member.</param>
/// <param name="nilImplication">The nil implication.</param>
/// <param name="localHolder">The <see cref="LocalVariableHolder"/> which holds shared local variable information.</param>
public static void EmitDeserializeCollectionValue(SerializerEmitter emitter, TracingILGenerator il, int unpackerArgumentIndex, LocalBuilder target, MemberInfo member, Type memberType, NilImplication nilImplication, LocalVariableHolder localHolder)
{
Contract.Requires(emitter != null);
Contract.Requires(il != null);
Contract.Requires(unpackerArgumentIndex >= 0);
Contract.Requires(target != null);
Contract.Requires(member != null);
Contract.Requires(memberType != null);
Contract.Requires(localHolder != null);
var endOfDeserialization = il.DefineLabel("END_OF_DESERIALIZATION");
EmitGeneralRead(il, unpackerArgumentIndex);
switch (nilImplication)
{
case NilImplication.MemberDefault:
{
/*
* if( unpacker.Data.Value.IsNil )
* {
* // Skip current.
* goto END_OF_DESERIALIZATION;
* }
*/
il.EmitAnyLdarg(unpackerArgumentIndex);
il.EmitGetProperty(Metadata._Unpacker.Data);
var data = localHolder.UnpackedData;
il.EmitAnyStloc(data);
il.EmitAnyLdloca(data);
il.EmitGetProperty(Metadata._Nullable <MessagePackObject> .Value);
var dataValue = localHolder.UnpackedDataValue;
il.EmitAnyStloc(dataValue);
il.EmitAnyLdloca(dataValue);
il.EmitGetProperty(Metadata._MessagePackObject.IsNil);
il.EmitBrtrue(endOfDeserialization);
break;
}
case NilImplication.Null:
case NilImplication.Prohibit:
{
/*
* // for Prohibit
* if( unpacker.Data.Value.IsNil )
* {
* throw SerializationEceptions.NewProhibitNullException( "..." );
* }
*
* // for Null, and
* if( unpacker.Data.Value.IsNil )
* {
* throw SerializationEceptions.NewReadOnlyMemberItemsMustNotBeNullMethod( "..." );
* }
*/
il.EmitAnyLdarg(unpackerArgumentIndex);
il.EmitGetProperty(Metadata._Unpacker.Data);
var data = localHolder.UnpackedData;
il.EmitAnyStloc(data);
il.EmitAnyLdloca(data);
il.EmitGetProperty(Metadata._Nullable <MessagePackObject> .Value);
var dataValue = localHolder.UnpackedDataValue;
il.EmitAnyStloc(dataValue);
il.EmitAnyLdloca(dataValue);
il.EmitGetProperty(Metadata._MessagePackObject.IsNil);
var endIf0 = il.DefineLabel("END_IF0");
il.EmitBrfalse_S(endIf0);
il.EmitLdstr(member.Name);
if (nilImplication == NilImplication.Prohibit)
{
il.EmitAnyCall(SerializationExceptions.NewNullIsProhibitedMethod);
}
else
{
// Because result member is readonly collection, so the member will not be null if packed value was nil.
il.EmitAnyCall(SerializationExceptions.NewReadOnlyMemberItemsMustNotBeNullMethod);
}
il.EmitThrow();
il.MarkLabel(endIf0);
break;
}
}
/*
* if( !unpacker.IsArrayHeader && !unpacker.IsMapHeader )
* {
* throw new SerializatonException( "Cannot deserialize..." );
* }
*
* using( var subtreeUnpacker = unpacker.ReadSubtree() )
* {
* GET_SERIALIZER.UnpackTo( unpacker, result ) )
* }
*
* END_OF_DESERIALIZATION:
*/
var endIf = il.DefineLabel("THEN");
var serializerGetter = emitter.RegisterSerializer(memberType);
il.EmitAnyLdarg(unpackerArgumentIndex);
il.EmitGetProperty(Metadata._Unpacker.IsArrayHeader);
il.EmitBrtrue_S(endIf);
il.EmitAnyLdarg(unpackerArgumentIndex);
il.EmitGetProperty(Metadata._Unpacker.IsMapHeader);
il.EmitBrtrue_S(endIf);
// else
il.EmitLdstr(member.Name);
il.EmitAnyCall(SerializationExceptions.NewStreamDoesNotContainCollectionForMemberMethod);
il.EmitThrow();
// then
var subtreeUnpacker = localHolder.SubtreeUnpacker;
il.MarkLabel(endIf);
EmitUnpackerBeginReadSubtree(il, unpackerArgumentIndex, subtreeUnpacker);
serializerGetter(il, 0);
il.EmitAnyLdloc(subtreeUnpacker);
il.EmitAnyLdloc(target);
Emittion.EmitLoadValue(il, member);
il.EmitAnyCall(typeof(MessagePackSerializer <>).MakeGenericType(memberType).GetMethod("UnpackTo", new[] { typeof(Unpacker), memberType }));
EmitUnpackerEndReadSubtree(il, subtreeUnpacker);
il.MarkLabel(endOfDeserialization);
}
public static void EmitForEach(TracingILGenerator il, CollectionTraits traits, LocalBuilder collection, Action <TracingILGenerator, Action> bodyEmitter)
{
Contract.Requires(il != null);
Contract.Requires(collection != null);
Contract.Requires(bodyEmitter != null);
LocalBuilder enumerator = il.DeclareLocal(traits.GetEnumeratorMethod.ReturnType, "enumerator");
if (collection.LocalType.IsValueType)
{
il.EmitAnyLdloca(collection);
}
else
{
il.EmitAnyLdloc(collection);
}
il.EmitAnyCall(traits.GetEnumeratorMethod);
il.EmitAnyStloc(enumerator);
if (typeof(IDisposable).IsAssignableFrom(traits.GetEnumeratorMethod.ReturnType))
{
il.BeginExceptionBlock();
}
Label label = il.DefineLabel("START_LOOP");
il.MarkLabel(label);
Label target = il.DefineLabel("END_LOOP");
Type returnType = traits.GetEnumeratorMethod.ReturnType;
MethodInfo method = returnType.GetMethod("MoveNext", Type.EmptyTypes);
PropertyInfo currentProperty = traits.GetEnumeratorMethod.ReturnType.GetProperty("Current");
if (method == null)
{
method = _IEnumerator.MoveNext;
}
if (currentProperty == null)
{
if (returnType == typeof(IDictionaryEnumerator))
{
currentProperty = _IDictionaryEnumerator.Current;
}
else if (returnType.IsInterface)
{
if (returnType.IsGenericType && (returnType.GetGenericTypeDefinition() == typeof(IEnumerator <>)))
{
currentProperty = typeof(IEnumerator <>).MakeGenericType(new Type[] { traits.ElementType }).GetProperty("Current");
}
else
{
currentProperty = _IEnumerator.Current;
}
}
}
Contract.Assert(currentProperty != null, returnType.ToString());
if (traits.GetEnumeratorMethod.ReturnType.IsValueType)
{
il.EmitAnyLdloca(enumerator);
}
else
{
il.EmitAnyLdloc(enumerator);
}
il.EmitAnyCall(method);
il.EmitBrfalse(target);
bodyEmitter(il, delegate {
if (traits.GetEnumeratorMethod.ReturnType.IsValueType)
{
il.EmitAnyLdloca(enumerator);
}
else
{
il.EmitAnyLdloc(enumerator);
}
il.EmitGetProperty(currentProperty);
});
il.EmitBr(label);
il.MarkLabel(target);
if (typeof(IDisposable).IsAssignableFrom(traits.GetEnumeratorMethod.ReturnType))
{
il.BeginFinallyBlock();
if (traits.GetEnumeratorMethod.ReturnType.IsValueType)
{
MethodInfo info2 = traits.GetEnumeratorMethod.ReturnType.GetMethod("Dispose");
if (((info2 != null) && (info2.GetParameters().Length == 0)) && (info2.ReturnType == typeof(void)))
{
il.EmitAnyLdloca(enumerator);
il.EmitAnyCall(info2);
}
else
{
il.EmitAnyLdloc(enumerator);
il.EmitBox(traits.GetEnumeratorMethod.ReturnType);
il.EmitAnyCall(_IDisposable.Dispose);
}
}
else
{
il.EmitAnyLdloc(enumerator);
il.EmitAnyCall(_IDisposable.Dispose);
}
il.EndExceptionBlock();
}
}
/// <summary>
/// Emits the deserialize value.
/// </summary>
/// <param name="emitter">The emitter.</param>
/// <param name="il">The il generator.</param>
/// <param name="unpackerArgumentIndex">Index of the unpacker argument.</param>
/// <param name="value">The value local variable which stores unpacked value.</param>
/// <param name="targetType">The type of deserialzing type.</param>
/// <param name="member">The metadata for nil implication. Specify <c>null</c> if nil implication is not needed.</param>
/// <param name="memberName">The name of the member.</param>
/// <param name="endOfDeserialization">The end of deserialization label for nil implication.</param>
/// <param name="localHolder">The <see cref="LocalVariableHolder"/> which holds shared local variable information.</param>
private static void EmitDeserializeValueCore(SerializerEmitter emitter, TracingILGenerator il, int unpackerArgumentIndex, LocalBuilder value, Type targetType, SerializingMember?member, string memberName, Label endOfDeserialization, LocalVariableHolder localHolder)
{
var directUnpacking = Metadata._Unpacker.GetDirectReadMethod(value.LocalType);
if (directUnpacking != null && (member == null || !UnpackHelpers.IsReadOnlyAppendableCollectionMember(member.Value.Member)))
{
var isSuccess = localHolder.IsDeserializationSucceeded;
il.EmitLdc_I4_0();
il.EmitAnyStloc(isSuccess);
il.BeginExceptionBlock();
il.EmitAnyLdarg(unpackerArgumentIndex);
il.EmitAnyLdloca(value);
il.EmitAnyCall(directUnpacking);
il.EmitAnyStloc(isSuccess);
il.BeginCatchBlock(typeof(MessageTypeException));
var ex = localHolder.GetCatchedException(typeof(MessageTypeException));
il.EmitAnyStloc(ex);
il.EmitTypeOf(targetType);
il.EmitLdstr(memberName);
il.EmitAnyLdloc(ex);
il.EmitAnyCall(SerializationExceptions.NewFailedToDeserializeMemberMethod);
il.EmitThrow();
il.EndExceptionBlock();
var endIf0 = il.DefineLabel("END_IF");
il.EmitAnyLdloc(isSuccess);
il.EmitBrtrue_S(endIf0);
il.EmitAnyCall(SerializationExceptions.NewUnexpectedEndOfStreamMethod);
il.EmitThrow();
il.MarkLabel(endIf0);
if (member != null)
{
// If null, nil implication is NOT needed.
EmitNilImplicationForPrimitive(il, member.Value, value, endOfDeserialization);
}
}
else
{
EmitGeneralRead(il, unpackerArgumentIndex);
if (member != null)
{
// If null, nil implication is NOT needed.
EmitNilImplication(
il,
unpackerArgumentIndex,
member.Value.Contract.Name,
member.Value.Contract.NilImplication,
endOfDeserialization,
localHolder
);
}
var thenIffCollection = il.DefineLabel("THEN_IF_COLLECTION");
var endIfCollection = il.DefineLabel("END_IF_COLLECTION");
/*
* if( !unpacker.IsArrayHeader && !unpacker.IsMapHeader )
* {
* value = GET_SERIALIZER().UnpackFrom( unpacker );
* }
* else
* {
* using( var subtreeUnpacker = unpacker.ReadSubtree() )
* {
* value = GET_SERIALIZER().UnpackFrom( subtreeUnpacker );
* }
* }
*/
il.EmitAnyLdarg(unpackerArgumentIndex);
il.EmitGetProperty(Metadata._Unpacker.IsArrayHeader);
il.EmitAnyLdarg(unpackerArgumentIndex);
il.EmitGetProperty(Metadata._Unpacker.IsMapHeader);
il.EmitOr();
il.EmitBrtrue_S(thenIffCollection);
EmitUnpackFrom(emitter, il, value, unpackerArgumentIndex);
il.EmitBr_S(endIfCollection);
var subtreeUnpacker = localHolder.SubtreeUnpacker;
il.MarkLabel(thenIffCollection);
EmitUnpackerBeginReadSubtree(il, unpackerArgumentIndex, subtreeUnpacker);
EmitUnpackFrom(emitter, il, value, subtreeUnpacker);
EmitUnpackerEndReadSubtree(il, subtreeUnpacker);
il.MarkLabel(endIfCollection);
}
}
private static void EmitNilImplicationForPrimitive(TracingILGenerator il, SerializingMember member, LocalBuilder value, Label endOfDeserialization)
{
var endIf = il.DefineLabel("END_IF_NULL");
EmitCompareNull(il, value, endIf);
switch (member.Contract.NilImplication)
{
case NilImplication.MemberDefault:
{
/*
* if( value == null )
* {
* // Skip current.
* goto END_OF_DESERIALIZATION;
* }
*/
il.EmitBr(endOfDeserialization);
break;
}
case NilImplication.Null:
{
// Throw exception for non-nullable value type.
// Nop for nullables.
if (member.Member.GetMemberValueType().GetIsValueType() &&
Nullable.GetUnderlyingType(member.Member.GetMemberValueType()) == null)
{
/*
* if( value == null )
* {
* throw SerializationEceptions.NewValueTypeCannotBeNull( "...", typeof( MEMBER ), typeof( TYPE ) );
* }
*/
il.EmitLdstr(member.Contract.Name);
il.EmitLdtoken(member.Member.GetMemberValueType());
il.EmitAnyCall(Metadata._Type.GetTypeFromHandle);
il.EmitLdtoken(member.Member.DeclaringType);
il.EmitAnyCall(Metadata._Type.GetTypeFromHandle);
il.EmitAnyCall(SerializationExceptions.NewValueTypeCannotBeNull3Method);
il.EmitThrow();
}
break;
}
case NilImplication.Prohibit:
{
/*
* if( value == null )
* {
* throw SerializationEceptions.NewProhibitNullException( "..." );
* }
*/
il.EmitLdstr(member.Contract.Name);
il.EmitAnyCall(SerializationExceptions.NewNullIsProhibitedMethod);
il.EmitThrow();
break;
}
}
il.MarkLabel(endIf);
}