private Compiler.CompilerContext WriteSerializeDeserialize(string assemblyName, TypeBuilder type, SerializerPair[] methodPairs, Compiler.CompilerContext.ILVersion ilVersion, ref ILGenerator il)
{
il = Override(type, "Serialize");
Compiler.CompilerContext ctx = new Compiler.CompilerContext(il, false, true, methodPairs, this, ilVersion, assemblyName, MapType(typeof(object)));
// arg0 = this, arg1 = key, arg2=obj, arg3=dest
Compiler.CodeLabel[] jumpTable = new Compiler.CodeLabel[types.Count];
for (int i = 0; i < jumpTable.Length; i++)
{
jumpTable[i] = ctx.DefineLabel();
}
il.Emit(OpCodes.Ldarg_1);
ctx.Switch(jumpTable);
ctx.Return();
for (int i = 0; i < jumpTable.Length; i++)
{
SerializerPair pair = methodPairs[i];
ctx.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, MapType(typeof(object)));
// arg0 = this, arg1 = key, arg2=obj, arg3=source
for (int i = 0; i < jumpTable.Length; i++)
{
jumpTable[i] = ctx.DefineLabel();
}
il.Emit(OpCodes.Ldarg_1);
ctx.Switch(jumpTable);
ctx.LoadNullRef();
ctx.Return();
for (int i = 0; i < jumpTable.Length; i++)
{
SerializerPair pair = methodPairs[i];
ctx.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();
}
}
return ctx;
}
/// <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
}
/// <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>
/// <param name="name">The name of the TypeModel class to create</param>
/// <param name="path">The path for the new dll</param>
/// <returns>An instance of the newly created compiled type-model</returns>
public TypeModel Compile(string name, string path)
{
BuildAllSerializers();
Freeze();
bool save = !Helpers.IsNullOrEmpty(path);
if (Helpers.IsNullOrEmpty(name))
{
if (save) throw new ArgumentNullException("name");
name = Guid.NewGuid().ToString();
}
AssemblyName an = new AssemblyName();
an.Name = name;
AssemblyBuilder asm = AppDomain.CurrentDomain.DefineDynamicAssembly(an,
(save ? AssemblyBuilderAccess.RunAndSave : AssemblyBuilderAccess.Run)
);
ModuleBuilder module = save ? asm.DefineDynamicModule(name, path)
: asm.DefineDynamicModule(name);
Type baseType = typeof(TypeModel);
TypeBuilder type = module.DefineType(name,
(baseType.Attributes & ~TypeAttributes.Abstract) | TypeAttributes.Sealed,
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,
typeof(void), new Type[] { metaType.Type, 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, 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);
}
for(index = 0; index < methodPairs.Length ; index++)
{
SerializerPair pair = methodPairs[index];
ctx = new Compiler.CompilerContext(pair.SerializeBody, true, true, methodPairs);
pair.Type.Serializer.EmitWrite(ctx, Compiler.Local.InputValue);
ctx.Return();
ctx = new Compiler.CompilerContext(pair.DeserializeBody, true, false, methodPairs);
pair.Type.Serializer.EmitRead(ctx, Compiler.Local.InputValue);
if (!pair.Type.Serializer.ReturnsValue)
{
ctx.LoadValue(Compiler.Local.InputValue);
}
ctx.Return();
}
FieldBuilder knownTypes = type.DefineField("knownTypes", typeof(Type[]), FieldAttributes.Private | FieldAttributes.InitOnly);
ILGenerator il = Override(type, "GetKeyImpl");
il.Emit(OpCodes.Ldarg_0);
il.Emit(OpCodes.Ldfld, knownTypes);
il.Emit(OpCodes.Ldarg_1);
// note that Array.IndexOf is not supported under CF
il.EmitCall(OpCodes.Callvirt,typeof(IList).GetMethod(
"IndexOf", new Type[] { typeof(object) }), null);
if (hasInheritance)
{
il.DeclareLocal(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);
}
il = Override(type, "Serialize");
ctx = new Compiler.CompilerContext(il, false, true, methodPairs);
// 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);
// 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), 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();
}
}
ConstructorBuilder ctor = type.DefineConstructor(MethodAttributes.Public, CallingConventions.HasThis, Helpers.EmptyTypes);
il = ctor.GetILGenerator();
il.Emit(OpCodes.Ldarg_0);
il.Emit(OpCodes.Call, Helpers.GetConstructor(baseType, Helpers.EmptyTypes, true));
il.Emit(OpCodes.Ldarg_0);
Compiler.CompilerContext.LoadValue(il, types.Count);
il.Emit(OpCodes.Newarr, typeof(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, typeof(Type).GetMethod("GetTypeFromHandle"), null);
il.Emit(OpCodes.Stelem_Ref);
index++;
}
il.Emit(OpCodes.Stfld, knownTypes);
il.Emit(OpCodes.Ret);
Type finalType = type.CreateType();
if(!Helpers.IsNullOrEmpty(path))
{
asm.Save(path);
Helpers.DebugWriteLine("Wrote dll:" + path);
}
return (TypeModel)Activator.CreateInstance(finalType);
}
private static void EmitReadAndAddItem(Compiler.CompilerContext ctx, Compiler.Local list, IProtoSerializer tail, MethodInfo add, bool castListForAdd)
{
ctx.LoadAddress(list, list.Type); // needs to be the reference in case the list is value-type (static-call)
if (castListForAdd)
{
ctx.Cast(add.DeclaringType);
}
Type itemType = tail.ExpectedType;
bool tailReturnsValue = tail.ReturnsValue;
if (tail.RequiresOldValue)
{
if (itemType.IsValueType || !tailReturnsValue)
{
// going to need a variable
using (Compiler.Local item = new Compiler.Local(ctx, itemType))
{
if (itemType.IsValueType)
{ // initialise the struct
ctx.LoadAddress(item, itemType);
ctx.EmitCtor(itemType);
}
else
{ // assign null
ctx.LoadNullRef();
ctx.StoreValue(item);
}
tail.EmitRead(ctx, item);
if (!tailReturnsValue)
{
ctx.LoadValue(item);
}
}
}
else
{ // no variable; pass the null on the stack and take the value *off* the stack
ctx.LoadNullRef();
tail.EmitRead(ctx, null);
}
}
else
{
if (tailReturnsValue)
{ // out only (on the stack); just emit it
tail.EmitRead(ctx, null);
}
else
{ // doesn't take anything in nor return anything! WTF?
throw new InvalidOperationException();
}
}
// our "Add" is chosen either to take the correct type, or to take "object";
// we may need to box the value
Type addParamType = add.GetParameters()[0].ParameterType;
if (addParamType != itemType)
{
if (addParamType == ctx.MapType(typeof(object)))
{
ctx.CastToObject(itemType);
}
#if !NO_GENERICS
else if (Helpers.GetUnderlyingType(addParamType) == itemType)
{ // list is nullable
ConstructorInfo ctor = Helpers.GetConstructor(addParamType, new Type[] { itemType }, false);
ctx.EmitCtor(ctor); // the itemType on the stack is now a Nullable<ItemType>
}
#endif
else
{
throw new InvalidOperationException("Conflicting item/add type");
}
}
ctx.EmitCall(add);
if (add.ReturnType != ctx.MapType(typeof(void)))
{
ctx.DiscardValue();
}
}
