public Assembly Compile(AssemblyName assemblyName)
{
var assemblyBuilder =
AppDomain.CurrentDomain.DefineDynamicAssembly(assemblyName, AssemblyBuilderAccess.Run);
foreach (var attribute in Attributes)
{
assemblyBuilder.SetCustomAttribute(AnnotationAttributeBuilder.Create(attribute));
}
var moduleName = string.Format("DynamicEntitiesModule{0}.dll", _assemblyCount);
var module = assemblyBuilder.DefineDynamicModule(moduleName);
_assemblyCount++;
foreach (var enumTypeInfo in DynamicTypes.OfType <DynamicEnumType>())
{
_types.Add(enumTypeInfo.Name, DefineEnumType(module, enumTypeInfo));
}
foreach (var typeInfo in DynamicTypes.OfType <DynamicStructuralType>())
{
DefineStructuralType(module, typeInfo);
}
foreach (var typeInfo in DynamicTypes.OfType <DynamicStructuralType>())
{
var typeBuilder = _typeBuilders[typeInfo.Name];
foreach (var fieldInfo in typeInfo.Fields)
{
DefineField(typeBuilder.Item1, typeBuilder.Item2, fieldInfo);
}
foreach (var propertyInfo in typeInfo.Properties)
{
DefineProperty(typeBuilder.Item1, propertyInfo);
}
}
foreach (var t in _typeBuilders)
{
_types.Add(t.Key, t.Value.Item1.CreateType());
}
return(assemblyBuilder);
}
private Type DefineEnumType(ModuleBuilder module, DynamicEnumType enumTypeInfo)
{
var enumBuilder =
module.DefineEnum(
enumTypeInfo.Name,
GetTypeAccess(enumTypeInfo.TypeAccess),
enumTypeInfo.UnderlyingType);
foreach (var a in enumTypeInfo.Attributes)
{
enumBuilder.SetCustomAttribute(AnnotationAttributeBuilder.Create(a));
}
foreach (var enumMember in enumTypeInfo.Members)
{
enumBuilder.DefineLiteral(
enumMember.Key,
Convert.ChangeType(enumMember.Value, enumTypeInfo.UnderlyingType));
}
return(enumBuilder.CreateType());
}
private void DefineStructuralType(ModuleBuilder module, DynamicStructuralType typeInfo)
{
var typeAttributes = TypeAttributes.Class | GetTypeAccess(typeInfo.TypeAccess);
if (typeInfo.IsAbstract)
{
typeAttributes |= TypeAttributes.Abstract;
}
if (typeInfo.IsSealed)
{
typeAttributes |= TypeAttributes.Sealed;
}
Type baseClass = null;
if (typeInfo.BaseClass is Type)
{
baseClass = typeInfo.BaseClass as Type;
}
else if (typeInfo.BaseClass is DynamicStructuralType)
{
baseClass = _typeBuilders[((DynamicStructuralType)typeInfo.BaseClass).Name].Item1;
}
var typeBuilder = module.DefineType(typeInfo.Name, typeAttributes, baseClass);
foreach (var a in typeInfo.Attributes)
{
typeBuilder.SetCustomAttribute(AnnotationAttributeBuilder.Create(a));
}
// Define the Ctor
var constructorBuilder = typeInfo.CtorAccess == MemberAccess.None
? null
: typeBuilder.DefineDefaultConstructor(GetMethodAttributes(false, typeInfo.CtorAccess));
_typeBuilders.Add(typeInfo.Name, Tuple.Create(typeBuilder, constructorBuilder));
}
private void DefineProperty(TypeBuilder typeBuilder, DynamicProperty propertyInfo)
{
var getterAccess = propertyInfo.GetterAccess;
var setterAccess = propertyInfo.SetterAccess;
Type propertyType;
if (propertyInfo.EnumType != null)
{
propertyType = _types[propertyInfo.EnumType.Item1.Name];
if (propertyInfo.EnumType.Item2)
{
propertyType = typeof(Nullable <>).MakeGenericType(propertyType);
}
}
else if (propertyInfo.CollectionType != null)
{
if (propertyInfo.ReferenceType != null)
{
propertyType =
propertyInfo.CollectionType.MakeGenericType(_typeBuilders[propertyInfo.ReferenceType.Name].Item1);
}
else
{
propertyType = propertyInfo.CollectionType.MakeGenericType(propertyInfo.PropertyType);
}
}
else if (propertyInfo.ReferenceType != null)
{
propertyType = _typeBuilders[propertyInfo.ReferenceType.Name].Item1;
switch (_dynamicTypes[propertyInfo.ReferenceType.Name].TypeAccess)
{
case MemberAccess.Private:
getterAccess = MemberAccess.Private;
setterAccess = MemberAccess.Private;
break;
case MemberAccess.Internal:
getterAccess = MemberAccess.Internal;
setterAccess = MemberAccess.Internal;
break;
}
if (propertyInfo.PropertyType != null &&
propertyInfo.PropertyType.IsGenericTypeDefinition())
{
propertyType = propertyInfo.PropertyType.MakeGenericType(propertyType);
}
}
else
{
propertyType = propertyInfo.PropertyType;
}
var fieldBuilder = typeBuilder.DefineField(
"_" + propertyInfo.PropertyName, propertyType,
FieldAttributes.Private);
var propertyBuilder = typeBuilder.DefineProperty(
propertyInfo.PropertyName,
PropertyAttributes.None,
propertyType, Type.EmptyTypes);
foreach (var a in propertyInfo.Attributes)
{
propertyBuilder.SetCustomAttribute(AnnotationAttributeBuilder.Create(a));
}
if (propertyInfo.GetterAccess
!= MemberAccess.None)
{
var getter = typeBuilder.DefineMethod(
"get_" + propertyInfo.PropertyName,
GetMethodAttributes(propertyInfo.IsVirtual, getterAccess),
propertyType,
Type.EmptyTypes);
var generator = getter.GetILGenerator();
generator.Emit(OpCodes.Ldarg_0);
generator.Emit(OpCodes.Ldfld, fieldBuilder);
generator.Emit(OpCodes.Ret);
propertyBuilder.SetGetMethod(getter);
}
if (propertyInfo.SetterAccess
!= MemberAccess.None)
{
var setter = typeBuilder.DefineMethod(
"set_" + propertyInfo.PropertyName,
GetMethodAttributes(propertyInfo.IsVirtual, setterAccess),
null,
new[] { propertyType });
var generator = setter.GetILGenerator();
generator.Emit(OpCodes.Ldarg_0);
generator.Emit(OpCodes.Ldarg_1);
generator.Emit(OpCodes.Stfld, fieldBuilder);
generator.Emit(OpCodes.Ret);
propertyBuilder.SetSetMethod(setter);
}
}
