/// <summary>
/// Fully compiles the current model into a static-compiled serialization dll
/// (the serialization dll still requires protobuf-net for support services).
/// </summary>
/// <remarks>A full compilation is restricted to accessing public types / members</remarks>
/// <returns>An instance of the newly created compiled type-model</returns>
public TypeModel Compile(CompilerOptions options)
{
if (options == null) throw new ArgumentNullException("options");
string typeName = options.TypeName;
string path = options.OutputPath;
BuildAllSerializers();
Freeze();
bool save = !Helpers.IsNullOrEmpty(path);
if (Helpers.IsNullOrEmpty(typeName))
{
if (save) throw new ArgumentNullException("typeName");
typeName = Guid.NewGuid().ToString();
}
string assemblyName, moduleName;
if(path == null)
{
assemblyName = typeName;
moduleName = assemblyName + ".dll";
}
else
{
assemblyName = new System.IO.FileInfo(System.IO.Path.GetFileNameWithoutExtension(path)).Name;
moduleName = assemblyName + System.IO.Path.GetExtension(path);
}
#if FEAT_IKVM
IKVM.Reflection.AssemblyName an = new IKVM.Reflection.AssemblyName();
an.Name = assemblyName;
AssemblyBuilder asm = universe.DefineDynamicAssembly(an, AssemblyBuilderAccess.Save);
if(!Helpers.IsNullOrEmpty(options.ImageRuntimeVersion) && options.MetaDataVersion != 0)
{
asm.__SetImageRuntimeVersion(options.ImageRuntimeVersion, options.MetaDataVersion);
}
ModuleBuilder module = asm.DefineDynamicModule(moduleName, path);
#else
AssemblyName an = new AssemblyName();
an.Name = assemblyName;
AssemblyBuilder asm = AppDomain.CurrentDomain.DefineDynamicAssembly(an,
(save ? AssemblyBuilderAccess.RunAndSave : AssemblyBuilderAccess.Run)
);
ModuleBuilder module = save ? asm.DefineDynamicModule(moduleName, path)
: asm.DefineDynamicModule(moduleName);
#endif
if (!Helpers.IsNullOrEmpty(options.TargetFrameworkName))
{
// get [TargetFramework] from mscorlib/equivalent and burn into the new assembly
Type versionAttribType = null;
try
{ // this is best-endeavours only
versionAttribType = GetType("System.Runtime.Versioning.TargetFrameworkAttribute", MapType(typeof(string)).Assembly);
}
catch { /* don't stress */ }
if (versionAttribType != null)
{
PropertyInfo[] props;
object[] propValues;
if (Helpers.IsNullOrEmpty(options.TargetFrameworkDisplayName))
{
props = new PropertyInfo[0];
propValues = new object[0];
}
else
{
props = new PropertyInfo[1] { versionAttribType.GetProperty("FrameworkDisplayName") };
propValues = new object[1] { options.TargetFrameworkDisplayName };
}
CustomAttributeBuilder builder = new CustomAttributeBuilder(
versionAttribType.GetConstructor(new Type[] { MapType(typeof(string)) }),
new object[] { options.TargetFrameworkName },
props,
propValues);
asm.SetCustomAttribute(builder);
}
}
// copy assembly:InternalsVisibleTo
Type internalsVisibleToAttribType = null;
#if !FX11
try
{
internalsVisibleToAttribType = MapType(typeof(System.Runtime.CompilerServices.InternalsVisibleToAttribute));
}
catch { /* best endeavors only */ }
#endif
if (internalsVisibleToAttribType != null)
{
BasicList internalAssemblies = new BasicList(), consideredAssemblies = new BasicList();
foreach (MetaType metaType in types)
{
Assembly assembly = metaType.Type.Assembly;
if (consideredAssemblies.IndexOfReference(assembly) >= 0) continue;
consideredAssemblies.Add(assembly);
AttributeMap[] assemblyAttribsMap = AttributeMap.Create(this, assembly);
for (int i = 0; i < assemblyAttribsMap.Length; i++)
{
if (assemblyAttribsMap[i].AttributeType != internalsVisibleToAttribType) continue;
object privelegedAssemblyObj;
assemblyAttribsMap[i].TryGet("AssemblyName", out privelegedAssemblyObj);
string privelegedAssemblyName = privelegedAssemblyObj as string;
if (privelegedAssemblyName == assemblyName || Helpers.IsNullOrEmpty(privelegedAssemblyName)) continue; // ignore
if (internalAssemblies.IndexOf(new StringFinder(privelegedAssemblyName)) >= 0) continue; // seen it before
internalAssemblies.Add(privelegedAssemblyName);
CustomAttributeBuilder builder = new CustomAttributeBuilder(
internalsVisibleToAttribType.GetConstructor(new Type[] { MapType(typeof(string)) }),
new object[] { privelegedAssemblyName });
asm.SetCustomAttribute(builder);
}
}
}
Type baseType = MapType(typeof(TypeModel));
TypeAttributes typeAttributes = (baseType.Attributes & ~TypeAttributes.Abstract) | TypeAttributes.Sealed;
if(options.Accessibility == Accessibility.Internal)
{
typeAttributes &= ~TypeAttributes.Public;
}
TypeBuilder type = module.DefineType(typeName, typeAttributes, baseType);
Compiler.CompilerContext ctx;
int index = 0;
bool hasInheritance = false;
SerializerPair[] methodPairs = new SerializerPair[types.Count];
foreach (MetaType metaType in types)
{
MethodBuilder writeMethod = type.DefineMethod("Write"
#if DEBUG
+ metaType.Type.Name
#endif
,
MethodAttributes.Private | MethodAttributes.Static, CallingConventions.Standard,
MapType(typeof(void)), new Type[] { metaType.Type, MapType(typeof(ProtoWriter)) });
MethodBuilder readMethod = type.DefineMethod("Read"
#if DEBUG
+ metaType.Type.Name
#endif
,
MethodAttributes.Private | MethodAttributes.Static, CallingConventions.Standard,
metaType.Type, new Type[] { metaType.Type, MapType(typeof(ProtoReader)) });
SerializerPair pair = new SerializerPair(
GetKey(metaType.Type, true, false), GetKey(metaType.Type, true, true), metaType,
writeMethod, readMethod, writeMethod.GetILGenerator(), readMethod.GetILGenerator());
methodPairs[index++] = pair;
if (pair.MetaKey != pair.BaseKey) hasInheritance = true;
}
if (hasInheritance)
{
Array.Sort(methodPairs);
}
Compiler.CompilerContext.ILVersion ilVersion = Compiler.CompilerContext.ILVersion.Net2;
if (options.MetaDataVersion == 0x10000)
{
ilVersion = Compiler.CompilerContext.ILVersion.Net1; // old-school!
}
for(index = 0; index < methodPairs.Length ; index++)
{
SerializerPair pair = methodPairs[index];
ctx = new Compiler.CompilerContext(pair.SerializeBody, true, true, methodPairs, this, ilVersion, assemblyName);
ctx.CheckAccessibility(pair.Deserialize.ReturnType);
pair.Type.Serializer.EmitWrite(ctx, Compiler.Local.InputValue);
ctx.Return();
ctx = new Compiler.CompilerContext(pair.DeserializeBody, true, false, methodPairs, this, ilVersion, assemblyName);
pair.Type.Serializer.EmitRead(ctx, Compiler.Local.InputValue);
if (!pair.Type.Serializer.ReturnsValue)
{
ctx.LoadValue(Compiler.Local.InputValue);
}
ctx.Return();
}
ILGenerator il = Override(type, "GetKeyImpl");
int knownTypesCategory;
FieldBuilder knownTypes;
Type knownTypesLookupType;
const int KnownTypes_Array = 1, KnownTypes_Dictionary = 2, KnownTypes_Hashtable = 3, KnownTypes_ArrayCutoff = 20;
if (types.Count <= KnownTypes_ArrayCutoff)
{
knownTypesCategory = KnownTypes_Array;
knownTypesLookupType = MapType(typeof(System.Type[]), true);
}
else
{
#if NO_GENERICS
knownTypesLookupType = null;
#else
knownTypesLookupType = MapType(typeof(System.Collections.Generic.Dictionary<System.Type, int>), false);
#endif
if (knownTypesLookupType == null)
{
knownTypesLookupType = MapType(typeof(Hashtable), true);
knownTypesCategory = KnownTypes_Hashtable;
}
else
{
knownTypesCategory = KnownTypes_Dictionary;
}
}
knownTypes = type.DefineField("knownTypes", knownTypesLookupType, FieldAttributes.Private | FieldAttributes.InitOnly | FieldAttributes.Static);
switch(knownTypesCategory)
{
case KnownTypes_Array:
{
il.Emit(OpCodes.Ldsfld, knownTypes);
il.Emit(OpCodes.Ldarg_1);
// note that Array.IndexOf is not supported under CF
il.EmitCall(OpCodes.Callvirt, MapType(typeof(IList)).GetMethod(
"IndexOf", new Type[] { MapType(typeof(object)) }), null);
if (hasInheritance)
{
il.DeclareLocal(MapType(typeof(int))); // loc-0
il.Emit(OpCodes.Dup);
il.Emit(OpCodes.Stloc_0);
BasicList getKeyLabels = new BasicList();
int lastKey = -1;
for (int i = 0; i < methodPairs.Length; i++)
{
if (methodPairs[i].MetaKey == methodPairs[i].BaseKey) break;
if (lastKey == methodPairs[i].BaseKey)
{ // add the last label again
getKeyLabels.Add(getKeyLabels[getKeyLabels.Count - 1]);
}
else
{ // add a new unique label
getKeyLabels.Add(il.DefineLabel());
lastKey = methodPairs[i].BaseKey;
}
}
Label[] subtypeLabels = new Label[getKeyLabels.Count];
getKeyLabels.CopyTo(subtypeLabels, 0);
il.Emit(OpCodes.Switch, subtypeLabels);
il.Emit(OpCodes.Ldloc_0); // not a sub-type; use the original value
il.Emit(OpCodes.Ret);
lastKey = -1;
// now output the different branches per sub-type (not derived type)
for (int i = subtypeLabels.Length - 1; i >= 0; i--)
{
if (lastKey != methodPairs[i].BaseKey)
{
lastKey = methodPairs[i].BaseKey;
// find the actual base-index for this base-key (i.e. the index of
// the base-type)
int keyIndex = -1;
for (int j = subtypeLabels.Length; j < methodPairs.Length; j++)
{
if (methodPairs[j].BaseKey == lastKey && methodPairs[j].MetaKey == lastKey)
{
keyIndex = j;
break;
}
}
il.MarkLabel(subtypeLabels[i]);
Compiler.CompilerContext.LoadValue(il, keyIndex);
il.Emit(OpCodes.Ret);
}
}
}
else
{
il.Emit(OpCodes.Ret);
}
}
break;
case KnownTypes_Dictionary:
{
LocalBuilder result = il.DeclareLocal(MapType(typeof(int)));
Label otherwise = il.DefineLabel();
il.Emit(OpCodes.Ldsfld, knownTypes);
il.Emit(OpCodes.Ldarg_1);
il.Emit(OpCodes.Ldloca_S, result);
il.EmitCall(OpCodes.Callvirt, knownTypesLookupType.GetMethod("TryGetValue", BindingFlags.Instance | BindingFlags.Public), null);
il.Emit(OpCodes.Brfalse_S, otherwise);
il.Emit(OpCodes.Ldloc_S, result);
il.Emit(OpCodes.Ret);
il.MarkLabel(otherwise);
il.Emit(OpCodes.Ldc_I4_M1);
il.Emit(OpCodes.Ret);
}
break;
case KnownTypes_Hashtable:
{
Label otherwise = il.DefineLabel();
il.Emit(OpCodes.Ldsfld, knownTypes);
il.Emit(OpCodes.Ldarg_1);
il.EmitCall(OpCodes.Callvirt, knownTypesLookupType.GetProperty("Item").GetGetMethod(), null);
il.Emit(OpCodes.Dup);
il.Emit(OpCodes.Brfalse_S, otherwise);
#if FX11
il.Emit(OpCodes.Unbox, MapType(typeof(int)));
il.Emit(OpCodes.Ldobj, MapType(typeof(int)));
#else
if (ilVersion == Compiler.CompilerContext.ILVersion.Net1)
{
il.Emit(OpCodes.Unbox, MapType(typeof(int)));
il.Emit(OpCodes.Ldobj, MapType(typeof(int)));
}
else
{
il.Emit(OpCodes.Unbox_Any, MapType(typeof(int)));
}
#endif
il.Emit(OpCodes.Ret);
il.MarkLabel(otherwise);
il.Emit(OpCodes.Pop);
il.Emit(OpCodes.Ldc_I4_M1);
il.Emit(OpCodes.Ret);
}
break;
default:
throw new InvalidOperationException();
}
il = Override(type, "Serialize");
ctx = new Compiler.CompilerContext(il, false, true, methodPairs, this, ilVersion, assemblyName);
// arg0 = this, arg1 = key, arg2=obj, arg3=dest
Label[] jumpTable = new Label[types.Count];
for (int i = 0; i < jumpTable.Length; i++) {
jumpTable[i] = il.DefineLabel();
}
il.Emit(OpCodes.Ldarg_1);
il.Emit(OpCodes.Switch, jumpTable);
ctx.Return();
for (int i = 0; i < jumpTable.Length; i++)
{
SerializerPair pair = methodPairs[i];
il.MarkLabel(jumpTable[i]);
il.Emit(OpCodes.Ldarg_2);
ctx.CastFromObject(pair.Type.Type);
il.Emit(OpCodes.Ldarg_3);
il.EmitCall(OpCodes.Call, pair.Serialize, null);
ctx.Return();
}
il = Override(type, "Deserialize");
ctx = new Compiler.CompilerContext(il, false, false, methodPairs, this, ilVersion, assemblyName);
// arg0 = this, arg1 = key, arg2=obj, arg3=source
for (int i = 0; i < jumpTable.Length; i++)
{
jumpTable[i] = il.DefineLabel();
}
il.Emit(OpCodes.Ldarg_1);
il.Emit(OpCodes.Switch, jumpTable);
ctx.LoadNullRef();
ctx.Return();
for (int i = 0; i < jumpTable.Length; i++)
{
SerializerPair pair = methodPairs[i];
il.MarkLabel(jumpTable[i]);
Type keyType = pair.Type.Type;
if (keyType.IsValueType)
{
il.Emit(OpCodes.Ldarg_2);
il.Emit(OpCodes.Ldarg_3);
il.EmitCall(OpCodes.Call, EmitBoxedSerializer(type, i, keyType, methodPairs, this, ilVersion, assemblyName), null);
ctx.Return();
}
else
{
il.Emit(OpCodes.Ldarg_2);
ctx.CastFromObject(keyType);
il.Emit(OpCodes.Ldarg_3);
il.EmitCall(OpCodes.Call, pair.Deserialize, null);
ctx.Return();
}
}
type.DefineDefaultConstructor(MethodAttributes.Public);
il = type.DefineTypeInitializer().GetILGenerator();
switch (knownTypesCategory)
{
case KnownTypes_Array:
{
Compiler.CompilerContext.LoadValue(il, types.Count);
il.Emit(OpCodes.Newarr, ctx.MapType(typeof(System.Type)));
index = 0;
foreach (SerializerPair pair in methodPairs)
{
il.Emit(OpCodes.Dup);
Compiler.CompilerContext.LoadValue(il, index);
il.Emit(OpCodes.Ldtoken, pair.Type.Type);
il.EmitCall(OpCodes.Call, ctx.MapType(typeof(System.Type)).GetMethod("GetTypeFromHandle"), null);
il.Emit(OpCodes.Stelem_Ref);
index++;
}
il.Emit(OpCodes.Stsfld, knownTypes);
il.Emit(OpCodes.Ret);
}
break;
case KnownTypes_Dictionary:
{
Compiler.CompilerContext.LoadValue(il, types.Count);
LocalBuilder loc = il.DeclareLocal(knownTypesLookupType);
il.Emit(OpCodes.Newobj, knownTypesLookupType.GetConstructor(new Type[] { MapType(typeof(int)) }));
il.Emit(OpCodes.Stsfld, knownTypes);
int typeIndex = 0;
foreach (SerializerPair pair in methodPairs)
{
il.Emit(OpCodes.Ldsfld, knownTypes);
il.Emit(OpCodes.Ldtoken, pair.Type.Type);
il.EmitCall(OpCodes.Call, ctx.MapType(typeof(System.Type)).GetMethod("GetTypeFromHandle"), null);
int keyIndex = typeIndex++, lastKey = pair.BaseKey;
if (lastKey != pair.MetaKey) // not a base-type; need to give the index of the base-type
{
keyIndex = -1; // assume epic fail
for (int j = 0; j < methodPairs.Length; j++)
{
if (methodPairs[j].BaseKey == lastKey && methodPairs[j].MetaKey == lastKey)
{
keyIndex = j;
break;
}
}
}
Compiler.CompilerContext.LoadValue(il, keyIndex);
il.EmitCall(OpCodes.Callvirt, knownTypesLookupType.GetMethod("Add", new Type[] { MapType(typeof(System.Type)), MapType(typeof(int)) }), null);
}
il.Emit(OpCodes.Ret);
}
break;
case KnownTypes_Hashtable:
{
Compiler.CompilerContext.LoadValue(il, types.Count);
il.Emit(OpCodes.Newobj, knownTypesLookupType.GetConstructor(new Type[] { MapType(typeof(int)) }));
il.Emit(OpCodes.Stsfld, knownTypes);
int typeIndex = 0;
foreach (SerializerPair pair in methodPairs)
{
il.Emit(OpCodes.Ldsfld, knownTypes);
il.Emit(OpCodes.Ldtoken, pair.Type.Type);
il.EmitCall(OpCodes.Call, ctx.MapType(typeof(System.Type)).GetMethod("GetTypeFromHandle"), null);
int keyIndex = typeIndex++, lastKey = pair.BaseKey;
if (lastKey != pair.MetaKey) // not a base-type; need to give the index of the base-type
{
keyIndex = -1; // assume epic fail
for (int j = 0; j < methodPairs.Length; j++)
{
if (methodPairs[j].BaseKey == lastKey && methodPairs[j].MetaKey == lastKey)
{
keyIndex = j;
break;
}
}
}
Compiler.CompilerContext.LoadValue(il, keyIndex);
il.Emit(OpCodes.Box, MapType(typeof(int)));
il.EmitCall(OpCodes.Callvirt, knownTypesLookupType.GetMethod("Add", new Type[] { MapType(typeof(object)), MapType(typeof(object)) }), null);
}
il.Emit(OpCodes.Ret);
}
break;
default:
throw new InvalidOperationException();
}
Type finalType = type.CreateType();
if(!Helpers.IsNullOrEmpty(path))
{
asm.Save(path);
Helpers.DebugWriteLine("Wrote dll:" + path);
}
#if FEAT_IKVM
return null;
#else
return (TypeModel)Activator.CreateInstance(finalType);
#endif
}
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 (Helpers.IsValueType(ExpectedType))
{
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[i].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)
{
using (Compiler.Local oldList = AppendToCollection ? ctx.GetLocalWithValue(ExpectedType, valueFrom) : null)
using (Compiler.Local builder = new Compiler.Local(ctx, builderFactory.ReturnType))
{
ctx.EmitCall(builderFactory);
ctx.StoreValue(builder);
if (AppendToCollection)
{
Compiler.CodeLabel done = ctx.DefineLabel();
if (!ExpectedType.IsValueType)
{
ctx.LoadValue(oldList);
ctx.BranchIfFalse(done, false); // old value null; nothing to add
}
PropertyInfo prop = Helpers.GetProperty(ExpectedType, "Length", false);
if (prop == null)
{
prop = Helpers.GetProperty(ExpectedType, "Count", false);
}
#if !NO_GENERICS
if (prop == null)
{
prop = Helpers.GetProperty(ResolveIReadOnlyCollection(ExpectedType, Tail.ExpectedType), "Count", false);
}
#endif
ctx.LoadAddress(oldList, oldList.Type);
ctx.EmitCall(Helpers.GetGetMethod(prop, false, false));
ctx.BranchIfFalse(done, false); // old list is empty; nothing to add
Type voidType = ctx.MapType(typeof(void));
if (addRange != null)
{
ctx.LoadValue(builder);
ctx.LoadValue(oldList);
ctx.EmitCall(addRange);
if (addRange.ReturnType != null && add.ReturnType != voidType)
{
ctx.DiscardValue();
}
}
else
{
// loop and call Add repeatedly
MethodInfo moveNext, current, getEnumerator = GetEnumeratorInfo(ctx.Model, out moveNext, out current);
Helpers.DebugAssert(moveNext != null);
Helpers.DebugAssert(current != null);
Helpers.DebugAssert(getEnumerator != null);
Type enumeratorType = getEnumerator.ReturnType;
using (Compiler.Local iter = new Compiler.Local(ctx, enumeratorType))
{
ctx.LoadAddress(oldList, ExpectedType);
ctx.EmitCall(getEnumerator);
ctx.StoreValue(iter);
using (ctx.Using(iter))
{
Compiler.CodeLabel body = ctx.DefineLabel(), next = ctx.DefineLabel();
ctx.Branch(next, false);
ctx.MarkLabel(body);
ctx.LoadAddress(builder, builder.Type);
ctx.LoadAddress(iter, enumeratorType);
ctx.EmitCall(current);
ctx.EmitCall(add);
if (add.ReturnType != null && add.ReturnType != voidType)
{
ctx.DiscardValue();
}
ctx.MarkLabel(@next);
ctx.LoadAddress(iter, enumeratorType);
ctx.EmitCall(moveNext);
ctx.BranchIfTrue(body, false);
}
}
}
ctx.MarkLabel(done);
}
EmitReadList(ctx, builder, Tail, add, packedWireType, false);
ctx.LoadAddress(builder, builder.Type);
ctx.EmitCall(finish);
if (ExpectedType != finish.ReturnType)
{
ctx.Cast(ExpectedType);
}
}
}
