void IProtoSerializer.EmitRead(Compiler.CompilerContext ctx, Compiler.Local valueFrom)
{
Type expected = ExpectedType;
Helpers.DebugAssert(valueFrom != null);
using (Compiler.Local loc = ctx.GetLocalWithValue(expected, valueFrom))
using (Compiler.Local fieldNumber = new Compiler.Local(ctx, ctx.MapType(typeof(int))))
{
// pre-callbacks
if (HasCallbacks(TypeModel.CallbackType.BeforeDeserialize))
{
if (ExpectedType.IsValueType)
{
EmitCallbackIfNeeded(ctx, loc, TypeModel.CallbackType.BeforeDeserialize);
}
else
{ // could be null
Compiler.CodeLabel callbacksDone = ctx.DefineLabel();
ctx.LoadValue(loc);
ctx.BranchIfFalse(callbacksDone, false);
EmitCallbackIfNeeded(ctx, loc, TypeModel.CallbackType.BeforeDeserialize);
ctx.MarkLabel(callbacksDone);
}
}
Compiler.CodeLabel @continue = ctx.DefineLabel(), processField = ctx.DefineLabel();
ctx.Branch(@continue, false);
ctx.MarkLabel(processField);
foreach (BasicList.Group group in BasicList.GetContiguousGroups(fieldNumbers, serializers))
{
Compiler.CodeLabel tryNextField = ctx.DefineLabel();
int groupItemCount = group.Items.Count;
if (groupItemCount == 1)
{
// discreet group; use an equality test
ctx.LoadValue(fieldNumber);
ctx.LoadValue(group.First);
Compiler.CodeLabel processThisField = ctx.DefineLabel();
ctx.BranchIfEqual(processThisField, true);
ctx.Branch(tryNextField, false);
WriteFieldHandler(ctx, expected, loc, processThisField, @continue, (IProtoSerializer)group.Items[0]);
}
else
{ // implement as a jump-table-based switch
ctx.LoadValue(fieldNumber);
ctx.LoadValue(group.First);
ctx.Subtract(); // jump-tables are zero-based
Compiler.CodeLabel[] jmp = new Compiler.CodeLabel[groupItemCount];
for (int i = 0; i < groupItemCount; i++)
{
jmp[i] = ctx.DefineLabel();
}
ctx.Switch(jmp);
// write the default...
ctx.Branch(tryNextField, false);
for (int i = 0; i < groupItemCount; i++)
{
WriteFieldHandler(ctx, expected, loc, jmp[i], @continue, (IProtoSerializer)group.Items[i]);
}
}
ctx.MarkLabel(tryNextField);
}
EmitCreateIfNull(ctx, loc);
ctx.LoadReaderWriter();
if (isExtensible)
{
ctx.LoadValue(loc);
ctx.EmitCall(ctx.MapType(typeof(ProtoReader)).GetMethod("AppendExtensionData"));
}
else
{
ctx.EmitCall(ctx.MapType(typeof(ProtoReader)).GetMethod("SkipField"));
}
ctx.MarkLabel(@continue);
ctx.EmitBasicRead("ReadFieldHeader", ctx.MapType(typeof(int)));
ctx.CopyValue();
ctx.StoreValue(fieldNumber);
ctx.LoadValue(0);
ctx.BranchIfGreater(processField, false);
EmitCreateIfNull(ctx, loc);
// post-callbacks
EmitCallbackIfNeeded(ctx, loc, TypeModel.CallbackType.AfterDeserialize);
if (valueFrom != null && !loc.IsSame(valueFrom))
{
ctx.LoadValue(loc);
ctx.Cast(valueFrom.Type);
ctx.StoreValue(valueFrom);
}
}
}
} // updates field directly
#if FEAT_COMPILER
void IProtoSerializer.EmitWrite(Compiler.CompilerContext ctx, Compiler.Local valueFrom)
{
Type expected = ExpectedType;
using (Compiler.Local loc = ctx.GetLocalWithValue(expected, valueFrom))
{
// pre-callbacks
EmitCallbackIfNeeded(ctx, loc, TypeModel.CallbackType.BeforeSerialize);
Compiler.CodeLabel startFields = ctx.DefineLabel();
// inheritance
if (CanHaveInheritance)
{
for (int i = 0; i < serializers.Length; i++)
{
IProtoSerializer ser = serializers[i];
Type serType = ser.ExpectedType;
if (serType != forType)
{
Compiler.CodeLabel ifMatch = ctx.DefineLabel(), nextTest = ctx.DefineLabel();
ctx.LoadValue(loc);
ctx.TryCast(serType);
ctx.CopyValue();
ctx.BranchIfTrue(ifMatch, true);
ctx.DiscardValue();
ctx.Branch(nextTest, true);
ctx.MarkLabel(ifMatch);
ser.EmitWrite(ctx, null);
ctx.Branch(startFields, false);
ctx.MarkLabel(nextTest);
}
}
if (constructType != null && constructType != forType)
{
using (Compiler.Local actualType = new Compiler.Local(ctx, ctx.MapType(typeof(System.Type))))
{
// would have jumped to "fields" if an expected sub-type, so two options:
// a: *exactly* that type, b: an *unexpected* type
ctx.LoadValue(loc);
ctx.EmitCall(ctx.MapType(typeof(object)).GetMethod("GetType"));
ctx.CopyValue();
ctx.StoreValue(actualType);
ctx.LoadValue(forType);
ctx.BranchIfEqual(startFields, true);
ctx.LoadValue(actualType);
ctx.LoadValue(constructType);
ctx.BranchIfEqual(startFields, true);
}
}
else
{
// would have jumped to "fields" if an expected sub-type, so two options:
// a: *exactly* that type, b: an *unexpected* type
ctx.LoadValue(loc);
ctx.EmitCall(ctx.MapType(typeof(object)).GetMethod("GetType"));
ctx.LoadValue(forType);
ctx.BranchIfEqual(startFields, true);
}
// unexpected, then... note that this *might* be a proxy, which
// is handled by ThrowUnexpectedSubtype
ctx.LoadValue(forType);
ctx.LoadValue(loc);
ctx.EmitCall(ctx.MapType(typeof(object)).GetMethod("GetType"));
ctx.EmitCall(ctx.MapType(typeof(TypeModel)).GetMethod("ThrowUnexpectedSubtype",
BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Static));
}
// fields
ctx.MarkLabel(startFields);
for (int i = 0; i < serializers.Length; i++)
{
IProtoSerializer ser = serializers[i];
if (ser.ExpectedType == forType)
{
ser.EmitWrite(ctx, loc);
}
}
// extension data
if (isExtensible)
{
ctx.LoadValue(loc);
ctx.LoadReaderWriter();
ctx.EmitCall(ctx.MapType(typeof(ProtoWriter)).GetMethod("AppendExtensionData"));
}
// post-callbacks
EmitCallbackIfNeeded(ctx, loc, TypeModel.CallbackType.AfterSerialize);
}
}
static void EmitInvokeCallback(Compiler.CompilerContext ctx, MethodInfo method, bool copyValue, Type constructType, Type type)
{
if (method != null)
{
if (copyValue)
{
ctx.CopyValue(); // assumes the target is on the stack, and that we want to *retain* it on the stack
}
ParameterInfo[] parameters = method.GetParameters();
bool handled = true;
for (int i = 0; i < parameters.Length; i++)
{
Type parameterType = parameters[0].ParameterType;
if (parameterType == ctx.MapType(typeof(SerializationContext)))
{
ctx.LoadSerializationContext();
}
else if (parameterType == ctx.MapType(typeof(System.Type)))
{
Type tmp = constructType;
if (tmp == null)
{
tmp = type; // no ?? in some C# profiles
}
ctx.LoadValue(tmp);
}
#if PLAT_BINARYFORMATTER
else if (parameterType == ctx.MapType(typeof(System.Runtime.Serialization.StreamingContext)))
{
ctx.LoadSerializationContext();
MethodInfo op = ctx.MapType(typeof(SerializationContext)).GetMethod("op_Implicit", new Type[] { ctx.MapType(typeof(SerializationContext)) });
if (op != null)
{ // it isn't always! (framework versions, etc)
ctx.EmitCall(op);
handled = true;
}
}
#endif
else
{
handled = false;
}
}
if (handled)
{
ctx.EmitCall(method);
if (constructType != null)
{
if (method.ReturnType == ctx.MapType(typeof(object)))
{
ctx.CastFromObject(type);
}
}
}
else
{
throw Meta.CallbackSet.CreateInvalidCallbackSignature(method);
}
}
}
protected override void EmitRead(Compiler.CompilerContext ctx, Compiler.Local valueFrom)
{
bool writeValue;
SanityCheck(ctx.Model, property, Tail, out writeValue, ctx.NonPublic, ctx.AllowInternal(property));
if (ExpectedType.IsValueType && valueFrom == null)
{
throw new InvalidOperationException("Attempt to mutate struct on the head of the stack; changes would be lost");
}
ctx.LoadAddress(valueFrom, ExpectedType); // stack is: old-addr
if (writeValue && Tail.RequiresOldValue)
{ // need to read and write
ctx.CopyValue();
}
// stack is: [old-addr]|old-addr
if (Tail.RequiresOldValue)
{
ctx.LoadValue(property); // stack is: [old-addr]|old-value
}
ctx.ReadNullCheckedTail(property.PropertyType, Tail, null); // stack is [old-addr]|[new-value]
if (writeValue)
{
// stack is old-addr|new-value
Compiler.CodeLabel @skip = new Compiler.CodeLabel(), allDone = new Compiler.CodeLabel(); // <=== default structs
if (!property.PropertyType.IsValueType)
{ // if the tail returns a null, intepret that as *no assign*
ctx.CopyValue(); // old-addr|new-value|new-value
@skip = ctx.DefineLabel();
allDone = ctx.DefineLabel();
ctx.BranchIfFalse(@skip, true); // old-addr|new-value
}
if (shadowSetter == null)
{
ctx.StoreValue(property);
}
else
{
ctx.EmitCall(shadowSetter);
}
if (!property.PropertyType.IsValueType)
{
ctx.Branch(allDone, true);
ctx.MarkLabel(@skip); // old-addr|new-value
ctx.DiscardValue();
ctx.DiscardValue();
ctx.MarkLabel(allDone);
}
}
else
{ // don't want return value; drop it if anything there
// stack is [new-value]
if (Tail.ReturnsValue)
{
ctx.DiscardValue();
}
}
}
public void EmitRead(Compiler.CompilerContext ctx, Compiler.Local incoming)
{
using (Compiler.Local objValue = ctx.GetLocalWithValue(ExpectedType, incoming))
{
Compiler.Local[] locals = new Compiler.Local[members.Length];
try
{
for (int i = 0; i < locals.Length; i++)
{
Type type = GetMemberType(i);
bool store = true;
locals[i] = new Compiler.Local(ctx, type);
if (!Helpers.IsValueType(ExpectedType))
{
// value-types always read the old value
if (Helpers.IsValueType(type))
{
switch (Helpers.GetTypeCode(type))
{
case ProtoTypeCode.Boolean:
case ProtoTypeCode.Byte:
case ProtoTypeCode.Int16:
case ProtoTypeCode.Int32:
case ProtoTypeCode.SByte:
case ProtoTypeCode.UInt16:
case ProtoTypeCode.UInt32:
ctx.LoadValue(0);
break;
case ProtoTypeCode.Int64:
case ProtoTypeCode.UInt64:
ctx.LoadValue(0L);
break;
case ProtoTypeCode.Single:
ctx.LoadValue(0.0F);
break;
case ProtoTypeCode.Double:
ctx.LoadValue(0.0D);
break;
case ProtoTypeCode.Decimal:
ctx.LoadValue(0M);
break;
case ProtoTypeCode.Guid:
ctx.LoadValue(Guid.Empty);
break;
default:
ctx.LoadAddress(locals[i], type);
ctx.EmitCtor(type);
store = false;
break;
}
}
else
{
ctx.LoadNullRef();
}
if (store)
{
ctx.StoreValue(locals[i]);
}
}
}
Compiler.CodeLabel skipOld = Helpers.IsValueType(ExpectedType)
? new Compiler.CodeLabel()
: ctx.DefineLabel();
if (!Helpers.IsValueType(ExpectedType))
{
ctx.LoadAddress(objValue, ExpectedType);
ctx.BranchIfFalse(skipOld, false);
}
for (int i = 0; i < members.Length; i++)
{
ctx.LoadAddress(objValue, ExpectedType);
if (members[i] is FieldInfo)
{
ctx.LoadValue((FieldInfo)members[i]);
}
else if (members[i] is PropertyInfo)
{
ctx.LoadValue((PropertyInfo)members[i]);
}
ctx.StoreValue(locals[i]);
}
if (!Helpers.IsValueType(ExpectedType))
{
ctx.MarkLabel(skipOld);
}
using (Compiler.Local fieldNumber = new Compiler.Local(ctx, typeof(int)))
{
Compiler.CodeLabel @continue = ctx.DefineLabel(),
processField = ctx.DefineLabel(),
notRecognised = ctx.DefineLabel();
ctx.Branch(@continue, false);
Compiler.CodeLabel[] handlers = new Compiler.CodeLabel[members.Length];
for (int i = 0; i < members.Length; i++)
{
handlers[i] = ctx.DefineLabel();
}
ctx.MarkLabel(processField);
ctx.LoadValue(fieldNumber);
ctx.LoadValue(1);
ctx.Subtract(); // jump-table is zero-based
ctx.Switch(handlers);
// and the default:
ctx.Branch(notRecognised, false);
for (int i = 0; i < handlers.Length; i++)
{
ctx.MarkLabel(handlers[i]);
IProtoSerializer tail = tails[i];
Compiler.Local oldValIfNeeded = tail.RequiresOldValue ? locals[i] : null;
ctx.ReadNullCheckedTail(locals[i].Type, tail, oldValIfNeeded);
if (tail.ReturnsValue)
{
if (Helpers.IsValueType(locals[i].Type))
{
ctx.StoreValue(locals[i]);
}
else
{
Compiler.CodeLabel hasValue = ctx.DefineLabel(), allDone = ctx.DefineLabel();
ctx.CopyValue();
ctx.BranchIfTrue(hasValue, true); // interpret null as "don't assign"
ctx.DiscardValue();
ctx.Branch(allDone, true);
ctx.MarkLabel(hasValue);
ctx.StoreValue(locals[i]);
ctx.MarkLabel(allDone);
}
}
ctx.Branch(@continue, false);
}
ctx.MarkLabel(notRecognised);
ctx.LoadReader(true);
ctx.EmitCall(typeof(ProtoReader).GetMethod("SkipField", ProtoReader.State.StateTypeArray));
ctx.MarkLabel(@continue);
ctx.EmitBasicRead("ReadFieldHeader", typeof(int));
ctx.CopyValue();
ctx.StoreValue(fieldNumber);
ctx.LoadValue(0);
ctx.BranchIfGreater(processField, false);
}
for (int i = 0; i < locals.Length; i++)
{
ctx.LoadValue(locals[i]);
}
ctx.EmitCtor(ctor);
ctx.StoreValue(objValue);
}
finally
{
for (int i = 0; i < locals.Length; i++)
{
if (locals[i] != null)
{
locals[i].Dispose(); // release for re-use
}
}
}
}
}
public void EmitRead(Compiler.CompilerContext ctx, Compiler.Local incoming)
{
using (ctx.StartDebugBlockAuto(this))
{
var g = ctx.G;
using (Compiler.Local objValue = ctx.GetLocalWithValueForEmitRead(this, incoming))
using (Compiler.Local reservedTrap = new Local(ctx, ctx.MapType(typeof(int))))
using (Compiler.Local token = new Local(ctx, ctx.MapType(typeof(SubItemToken))))
using (Compiler.Local refLocalToNoteObject = new Local(ctx, ctx.MapType(typeof(object))))
{
ctx.EmitCallReserveNoteObject();
ctx.StoreValue(reservedTrap);
Compiler.Local[] locals = new Compiler.Local[_members.Length];
try
{
g.Assign(token, g.ReaderFunc.StartSubItem());
for (int i = 0; i < locals.Length; i++)
{
Type type = GetMemberType(i);
bool store = true;
locals[i] = new Compiler.Local(ctx, type);
if (!ExpectedType.IsValueType)
{
// value-types always read the old value
if (type.IsValueType)
{
switch (Helpers.GetTypeCode(type))
{
case ProtoTypeCode.Boolean:
case ProtoTypeCode.Byte:
case ProtoTypeCode.Int16:
case ProtoTypeCode.Int32:
case ProtoTypeCode.SByte:
case ProtoTypeCode.UInt16:
case ProtoTypeCode.UInt32:
ctx.LoadValue(0);
break;
case ProtoTypeCode.Int64:
case ProtoTypeCode.UInt64:
ctx.LoadValue(0L);
break;
case ProtoTypeCode.Single:
ctx.LoadValue(0.0F);
break;
case ProtoTypeCode.Double:
ctx.LoadValue(0.0D);
break;
case ProtoTypeCode.Decimal:
ctx.LoadValue(0M);
break;
case ProtoTypeCode.Guid:
ctx.LoadValue(Guid.Empty);
break;
default:
ctx.LoadAddress(locals[i], type);
ctx.EmitCtor(type);
store = false;
break;
}
}
else
{
ctx.LoadNullRef();
}
if (store)
{
ctx.StoreValue(locals[i]);
}
}
}
Compiler.CodeLabel skipOld = ExpectedType.IsValueType
? new Compiler.CodeLabel()
: ctx.DefineLabel();
if (!ExpectedType.IsValueType)
{
ctx.LoadAddress(objValue, ExpectedType);
ctx.BranchIfFalse(skipOld, false);
}
for (int i = 0; i < _members.Length; i++)
{
ctx.LoadAddress(objValue, ExpectedType);
switch (_members[i].Member.MemberType)
{
case MemberTypes.Field:
ctx.LoadValue((FieldInfo)_members[i].Member);
break;
case MemberTypes.Property:
ctx.LoadValue((PropertyInfo)_members[i].Member);
break;
}
ctx.StoreValue(locals[i]);
}
if (!ExpectedType.IsValueType)
{
ctx.MarkLabel(skipOld);
}
using (Compiler.Local fieldNumber = new Compiler.Local(ctx, ctx.MapType(typeof(int))))
{
Compiler.CodeLabel @continue = ctx.DefineLabel(),
processField = ctx.DefineLabel(),
notRecognised = ctx.DefineLabel();
ctx.Branch(@continue, false);
Compiler.CodeLabel[] handlers = new Compiler.CodeLabel[_members.Length];
for (int i = 0; i < _members.Length; i++)
{
handlers[i] = ctx.DefineLabel();
}
ctx.MarkLabel(processField);
ctx.LoadValue(fieldNumber);
ctx.LoadValue(1);
ctx.Subtract(); // jump-table is zero-based
ctx.Switch(handlers);
// and the default:
ctx.Branch(notRecognised, false);
for (int i = 0; i < handlers.Length; i++)
{
ctx.MarkLabel(handlers[i]);
IProtoSerializer tail = _tails[i];
Compiler.Local oldValIfNeeded = tail.RequiresOldValue ? locals[i] : null;
ctx.ReadNullCheckedTail(locals[i].Type, tail, oldValIfNeeded);
if (tail.EmitReadReturnsValue)
{
if (locals[i].Type.IsValueType)
{
ctx.StoreValue(locals[i]);
}
else
{
Compiler.CodeLabel hasValue = ctx.DefineLabel(), allDone = ctx.DefineLabel();
ctx.CopyValue();
ctx.BranchIfTrue(hasValue, true); // interpret null as "don't assign"
ctx.DiscardValue();
ctx.Branch(allDone, true);
ctx.MarkLabel(hasValue);
ctx.StoreValue(locals[i]);
ctx.MarkLabel(allDone);
}
}
ctx.Branch(@continue, false);
}
ctx.MarkLabel(notRecognised);
ctx.LoadReaderWriter();
ctx.EmitCall(ctx.MapType(typeof(ProtoReader)).GetMethod("SkipField"));
ctx.MarkLabel(@continue);
ctx.EmitBasicRead("ReadFieldHeader", ctx.MapType(typeof(int)));
ctx.CopyValue();
ctx.StoreValue(fieldNumber);
ctx.LoadValue(0);
ctx.BranchIfGreater(processField, false);
}
g.Reader.EndSubItem(token);
for (int i = 0; i < locals.Length; i++)
{
ctx.LoadValue(locals[i]);
}
ctx.EmitCtor(_ctor);
ctx.StoreValue(objValue);
ctx.LoadValue(objValue);
ctx.CastToObject(ctx.MapType(_ctor.DeclaringType));
ctx.StoreValue(refLocalToNoteObject);
ctx.LoadValue(reservedTrap);
ctx.LoadAddress(refLocalToNoteObject, refLocalToNoteObject.Type);
ctx.EmitCallNoteReservedTrappedObject();
if (EmitReadReturnsValue)
{
ctx.LoadValue(objValue);
}
}
finally
{
for (int i = 0; i < locals.Length; i++)
{
if (!locals[i].IsNullRef())
{
locals[i].Dispose(); // release for re-use
}
}
}
}
}
}
protected override void EmitRead(Compiler.CompilerContext ctx, Compiler.Local valueFrom)
{
using (Compiler.Local oldValue = ctx.GetLocalWithValue(ExpectedType, valueFrom))
using (Compiler.Local token = new Compiler.Local(ctx, typeof(SubItemToken)))
using (Compiler.Local field = new Compiler.Local(ctx, typeof(int)))
{
ctx.LoadReader(true);
ctx.EmitCall(typeof(ProtoReader).GetMethod("StartSubItem",
Compiler.ReaderUtil.ReaderStateTypeArray));
ctx.StoreValue(token);
Compiler.CodeLabel next = ctx.DefineLabel(), processField = ctx.DefineLabel(), end = ctx.DefineLabel();
ctx.MarkLabel(next);
ctx.EmitBasicRead("ReadFieldHeader", typeof(int));
ctx.CopyValue();
ctx.StoreValue(field);
ctx.LoadValue(Tag); // = 1 - process
ctx.BranchIfEqual(processField, true);
ctx.LoadValue(field);
ctx.LoadValue(1); // < 1 - exit
ctx.BranchIfLess(end, false);
// default: skip
ctx.LoadReader(true);
ctx.EmitCall(typeof(ProtoReader).GetMethod("SkipField", Compiler.ReaderUtil.StateTypeArray));
ctx.Branch(next, true);
// process
ctx.MarkLabel(processField);
if (Tail.RequiresOldValue)
{
if (Helpers.IsValueType(ExpectedType))
{
ctx.LoadAddress(oldValue, ExpectedType);
ctx.EmitCall(ExpectedType.GetMethod("GetValueOrDefault", Helpers.EmptyTypes));
}
else
{
ctx.LoadValue(oldValue);
}
}
Tail.EmitRead(ctx, null);
// note we demanded always returns a value
if (Helpers.IsValueType(ExpectedType))
{
ctx.EmitCtor(ExpectedType, Tail.ExpectedType); // re-nullable<T> it
}
ctx.StoreValue(oldValue);
ctx.Branch(next, false);
// outro
ctx.MarkLabel(end);
ctx.LoadValue(token);
ctx.LoadReader(true);
ctx.EmitCall(typeof(ProtoReader).GetMethod("EndSubItem",
new[] { typeof(SubItemToken), typeof(ProtoReader), Compiler.ReaderUtil.ByRefStateType }));
ctx.LoadValue(oldValue); // load the old value
}
}
void IProtoTypeSerializer.EmitCallback(Compiler.CompilerContext ctx, Compiler.Local valueFrom, TypeModel.CallbackType callbackType)
{
bool actuallyHasInheritance = false;
if (CanHaveInheritance)
{
for (int i = 0; i < serializers.Length; i++)
{
IProtoSerializer ser = serializers[i];
if (ser.ExpectedType != forType && ((IProtoTypeSerializer)ser).HasCallbacks(callbackType))
{
actuallyHasInheritance = true;
}
}
}
Helpers.DebugAssert(((IProtoTypeSerializer)this).HasCallbacks(callbackType), "Shouldn't be calling this if there is nothing to do");
MethodInfo method = callbacks == null ? null : callbacks[callbackType];
if (method == null && !actuallyHasInheritance)
{
return;
}
ctx.LoadAddress(valueFrom, ExpectedType);
EmitInvokeCallback(ctx, method, actuallyHasInheritance, null, forType);
if (actuallyHasInheritance)
{
Compiler.CodeLabel @break = ctx.DefineLabel();
for (int i = 0; i < serializers.Length; i++)
{
IProtoSerializer ser = serializers[i];
IProtoTypeSerializer typeser;
Type serType = ser.ExpectedType;
if (serType != forType &&
(typeser = (IProtoTypeSerializer)ser).HasCallbacks(callbackType))
{
Compiler.CodeLabel ifMatch = ctx.DefineLabel(), nextTest = ctx.DefineLabel();
ctx.CopyValue();
ctx.TryCast(serType);
ctx.CopyValue();
ctx.BranchIfTrue(ifMatch, true);
ctx.DiscardValue();
ctx.Branch(nextTest, false);
ctx.MarkLabel(ifMatch);
typeser.EmitCallback(ctx, null, callbackType);
ctx.Branch(@break, false);
ctx.MarkLabel(nextTest);
}
}
ctx.MarkLabel(@break);
ctx.DiscardValue();
}
}
void IProtoTypeSerializer.EmitCreateInstance(Compiler.CompilerContext ctx)
{
// different ways of creating a new instance
bool callNoteObject = true;
if (factory != null)
{
EmitInvokeCallback(ctx, factory, false, constructType, forType);
}
else if (!useConstructor)
{ // DataContractSerializer style
ctx.LoadValue(constructType);
ctx.EmitCall(ctx.MapType(typeof(BclHelpers)).GetMethod("GetUninitializedObject"));
ctx.Cast(forType);
}
else if (constructType.IsClass && hasConstructor)
{ // XmlSerializer style
ctx.EmitCtor(constructType);
}
else
{
ctx.LoadValue(ExpectedType);
ctx.EmitCall(ctx.MapType(typeof(TypeModel)).GetMethod("ThrowCannotCreateInstance",
BindingFlags.Static | BindingFlags.Public));
ctx.LoadNullRef();
callNoteObject = false;
}
if (callNoteObject)
{
// track root object creation
ctx.CopyValue();
ctx.LoadReaderWriter();
ctx.EmitCall(ctx.MapType(typeof(ProtoReader)).GetMethod("NoteObject",
BindingFlags.Static | BindingFlags.Public));
}
if (baseCtorCallbacks != null)
{
for (int i = 0; i < baseCtorCallbacks.Length; i++)
{
EmitInvokeCallback(ctx, baseCtorCallbacks[i], true, null, forType);
}
}
}
bool EmitDedicatedMethod(Compiler.CompilerContext ctx, Compiler.Local valueFrom, bool read)
{
#if SILVERLIGHT
return(false);
#else
MethodBuilder method = ctx.GetDedicatedMethod(key, read);
if (method == null)
{
return(false);
}
using (Compiler.Local token = new ProtoBuf.Compiler.Local(ctx, ctx.MapType(typeof(SubItemToken))))
{
Type rwType = ctx.MapType(read ? typeof(ProtoReader) : typeof(ProtoWriter));
ctx.LoadValue(valueFrom);
if (!read) // write requires the object for StartSubItem; read doesn't
{ // (if recursion-check is disabled [subtypes] then null is fine too)
if (type.IsValueType || !recursionCheck)
{
ctx.LoadNullRef();
}
else
{
ctx.CopyValue();
}
}
ctx.LoadReaderWriter();
ctx.EmitCall(rwType.GetMethod("StartSubItem"));
ctx.StoreValue(token);
// note: value already on the stack
ctx.LoadReaderWriter();
ctx.EmitCall(method);
// handle inheritance (we will be calling the *base* version of things,
// but we expect Read to return the "type" type)
if (read && type != method.ReturnType)
{
ctx.Cast(this.type);
}
ctx.LoadValue(token);
ctx.LoadReaderWriter();
ctx.EmitCall(rwType.GetMethod("EndSubItem"));
}
return(true);
#endif
}
