/// <summary>
/// Creates the serializer type built now and returns its new instance.
/// </summary>
/// <param name="context">The <see cref="SerializationContext"/> to holds serializers.</param>
/// <param name="builder">The builder which implements actions initialization emit.</param>
/// <param name="targetInfo">The information of the target.</param>
/// <param name="schema">The <see cref="PolymorphismSchema"/> for this instance.</param>
/// <param name="capabilities">The capabilities of the generating serializer.</param>
/// <returns>
/// Newly built <see cref="MessagePackSerializer"/> instance.
/// This value will not be <c>null</c>.
/// </returns>
public MessagePackSerializer CreateObjectInstance(
AssemblyBuilderEmittingContext context,
AssemblyBuilderSerializerBuilder builder,
SerializationTarget targetInfo,
PolymorphismSchema schema,
SerializerCapabilities?capabilities
)
{
return(this.CreateObjectConstructor(context, builder, targetInfo, capabilities)(context.SerializationContext, schema));
}
public Func <SerializationContext, PolymorphismSchema, MessagePackSerializer> CreateObjectConstructor(AssemblyBuilderEmittingContext context, AssemblyBuilderSerializerBuilder builder, SerializationTarget targetInfo)
{
var hasPackActions = targetInfo != null && !typeof(IPackable).IsAssignableFrom(builder.TargetType);
var hasUnpackActions = targetInfo != null && !typeof(IUnpackable).IsAssignableFrom(builder.TargetType);
var hasUnpackActionTables = hasUnpackActions && targetInfo.Members.Any(m => m.Member != null); // Except tuples
#if FEATURE_TAP
var hasPackAsyncActions = targetInfo != null && !typeof(IAsyncPackable).IsAssignableFrom(builder.TargetType);
var hasUnpackAsyncActions = targetInfo != null && !typeof(IAsyncUnpackable).IsAssignableFrom(builder.TargetType);
var hasUnpackAsyncActionTables = hasUnpackAsyncActions && targetInfo.Members.Any(m => m.Member != null); // Except tuples
#endif // FEATURE_TAP
// ReSharper disable RedundantDelegateCreation
Func <bool, Func <ILConstruct> > packActionsInitialization =
isAsync =>
new Func <ILConstruct>(() => builder.EmitPackOperationListInitialization(context, targetInfo, isAsync));
Func <bool, Func <ILConstruct> > packActionTableInitialization =
isAsync =>
new Func <ILConstruct>(() => builder.EmitPackOperationTableInitialization(context, targetInfo, isAsync));
Func <bool, Func <ILConstruct> > unpackActionsInitialization =
isAsync => new Func <ILConstruct>(() => builder.EmitUnpackOperationListInitialization(context, targetInfo, isAsync));
Func <bool, Func <ILConstruct> > unpackActionTableInitialization =
isAsync => new Func <ILConstruct>(() => builder.EmitUnpackOperationTableInitialization(context, targetInfo, isAsync));
// ReSharper restore RedundantDelegateCreation
var contextfulConstructor =
this.CreateConstructor(
MethodAttributes.Public,
ConstructorParameterTypes,
(type, il) =>
this.CreateContextfulObjectConstructor(
context,
type,
il,
hasPackActions
? packActionsInitialization(false)
: default(Func <ILConstruct>),
hasPackActions
? packActionTableInitialization(false)
: default(Func <ILConstruct>),
hasUnpackActions
? unpackActionsInitialization(false)
: default(Func <ILConstruct>),
hasUnpackActionTables
? unpackActionTableInitialization(false)
: default(Func <ILConstruct>),
#if FEATURE_TAP
hasPackAsyncActions&& context.SerializationContext.SerializerOptions.WithAsync
? packActionsInitialization(true)
: default(Func <ILConstruct>),
hasPackAsyncActions && context.SerializationContext.SerializerOptions.WithAsync
? packActionTableInitialization(true)
: default(Func <ILConstruct>),
hasUnpackAsyncActions && context.SerializationContext.SerializerOptions.WithAsync
? unpackActionsInitialization(true)
: default(Func <ILConstruct>),
hasUnpackAsyncActionTables && context.SerializationContext.SerializerOptions.WithAsync
? unpackActionTableInitialization(true)
: default(Func <ILConstruct>),
#endif // FEATURE_TAP
(
hasUnpackActions
#if FEATURE_TAP
|| hasUnpackAsyncActions
#endif // FEATURE_TAP
) ? () => builder.EmitMemberListInitialization(context, targetInfo)
: default(Func <ILConstruct>),
context.IsUnpackToUsed
? () => builder.EmitUnpackToInitialization(context)
: default(Func <ILConstruct>)
)
);
this.CreateConstructor(
MethodAttributes.Public,
ReflectionAbstractions.EmptyTypes,
(_, il) => CreateDefaultObjectConstructor(contextfulConstructor, il)
);
#if !NETSTANDARD1_1 && !NETSTANDARD1_3
var ctor = this._typeBuilder.CreateType().GetConstructor(ConstructorParameterTypes);
#else
var ctor = this._typeBuilder.CreateTypeInfo().GetConstructor(ConstructorParameterTypes);
#endif // !NETSTANDARD1_1 && !NETSTANDARD1_3
var contextParameter = Expression.Parameter(typeof(SerializationContext), "context");
var schemaParameter = Expression.Parameter(typeof(PolymorphismSchema), "schema");
#if DEBUG
Contract.Assert(ctor != null, "ctor != null");
#endif
return
(Expression.Lambda <Func <SerializationContext, PolymorphismSchema, MessagePackSerializer> >(
Expression.New(
ctor,
contextParameter
),
contextParameter,
schemaParameter
).Compile());
}
public Func <SerializationContext, PolymorphismSchema, MessagePackSerializer> CreateObjectConstructor(
AssemblyBuilderEmittingContext context,
AssemblyBuilderSerializerBuilder builder,
SerializationTarget targetInfo,
SerializerCapabilities?capabilities
)
{
var hasPackActions = targetInfo != null && !typeof(IPackable).IsAssignableFrom(builder.TargetType);
var hasUnpackActions = targetInfo != null && !typeof(IUnpackable).IsAssignableFrom(builder.TargetType);
var hasUnpackActionTables = hasUnpackActions && targetInfo.Members.Any(m => m.Member != null); // Except tuples
#if FEATURE_TAP
var hasPackAsyncActions = targetInfo != null && !typeof(IAsyncPackable).IsAssignableFrom(builder.TargetType);
var hasUnpackAsyncActions = targetInfo != null && !typeof(IAsyncUnpackable).IsAssignableFrom(builder.TargetType);
var hasUnpackAsyncActionTables = hasUnpackAsyncActions && targetInfo.Members.Any(m => m.Member != null); // Except tuples
#endif // FEATURE_TAP
// ReSharper disable RedundantDelegateCreation
Func <bool, Func <ILConstruct> > packActionsInitialization =
isAsync =>
new Func <ILConstruct>(() => builder.EmitPackOperationListInitialization(context, targetInfo, isAsync));
Func <bool, Func <ILConstruct> > packActionTableInitialization =
isAsync =>
new Func <ILConstruct>(() => builder.EmitPackOperationTableInitialization(context, targetInfo, isAsync));
Func <ILConstruct> nullCheckerTableInitializtion = () => builder.EmitPackNullCheckerTableInitialization(context, targetInfo);
Func <bool, Func <ILConstruct> > unpackActionsInitialization =
isAsync => new Func <ILConstruct>(() => builder.EmitUnpackOperationListInitialization(context, targetInfo, isAsync));
Func <bool, Func <ILConstruct> > unpackActionTableInitialization =
isAsync => new Func <ILConstruct>(() => builder.EmitUnpackOperationTableInitialization(context, targetInfo, isAsync));
// ReSharper restore RedundantDelegateCreation
var contextfulConstructor =
this.CreateConstructor(
MethodAttributes.Public,
ConstructorParameterTypesWithoutCapabilities,
(type, il) =>
this.CreateContextfulObjectConstructor(
context,
type,
capabilities,
il,
hasPackActions
? packActionsInitialization(false)
: default(Func <ILConstruct>),
hasPackActions
? packActionTableInitialization(false)
: default(Func <ILConstruct>),
#if DEBUG
!SerializerDebugging.UseLegacyNullMapEntryHandling &&
#endif // DEBUG
hasPackActions
#if FEATURE_TAP
|| hasPackAsyncActions
#endif // FEATURE_TAP
? nullCheckerTableInitializtion
: default(Func <ILConstruct>),
hasUnpackActions
? unpackActionsInitialization(false)
: default(Func <ILConstruct>),
hasUnpackActionTables
? unpackActionTableInitialization(false)
: default(Func <ILConstruct>),
#if FEATURE_TAP
hasPackAsyncActions&& context.SerializationContext.SerializerOptions.WithAsync
? packActionsInitialization(true)
: default(Func <ILConstruct>),
hasPackAsyncActions && context.SerializationContext.SerializerOptions.WithAsync
? packActionTableInitialization(true)
: default(Func <ILConstruct>),
hasUnpackAsyncActions && context.SerializationContext.SerializerOptions.WithAsync
? unpackActionsInitialization(true)
: default(Func <ILConstruct>),
hasUnpackAsyncActionTables && context.SerializationContext.SerializerOptions.WithAsync
? unpackActionTableInitialization(true)
: default(Func <ILConstruct>),
#endif // FEATURE_TAP
(
hasUnpackActions
#if FEATURE_TAP
|| hasUnpackAsyncActions
#endif // FEATURE_TAP
) ? () => builder.EmitMemberListInitialization(context, targetInfo)
: default(Func <ILConstruct>),
context.IsUnpackToUsed
? () => builder.EmitUnpackToInitialization(context)
: default(Func <ILConstruct>)
)
);
this.CreateConstructor(
MethodAttributes.Public,
ReflectionAbstractions.EmptyTypes,
(_, il) => CreateDefaultObjectConstructor(contextfulConstructor, il)
);
#if !NETSTANDARD1_1 && !NETSTANDARD1_3 && !NETSTANDARD2_0
var ctor = this._typeBuilder.CreateType().GetConstructor(ConstructorParameterTypesWithoutCapabilities);
#else
var ctor = this._typeBuilder.CreateTypeInfo().GetConstructor(ConstructorParameterTypesWithoutCapabilities);
#endif // !NETSTANDARD1_1 && !NETSTANDARD1_3 && !NETSTANDARD2_0
#if DEBUG
Contract.Assert(ctor != null, "ctor != null");
#endif
var actualFunc = ctor.CreateConstructorDelegate <Func <SerializationContext, MessagePackSerializer> >();
return((c, _) => actualFunc(c));
}
