/// <summary>
/// Emits the deserialize collection value.
/// </summary>
/// <param name="emitter">The emitter.</param>
/// <param name="il">The il generator.</param>
/// <param name="unpackerArgumentIndex">Index of the unpacker argument.</param>
/// <param name="target">The target collection variable.</param>
/// <param name="member">The deserializing member metadata which holds the collection.</param>
/// <param name="memberType">Type of the deserializing member.</param>
/// <param name="nilImplication">The nil implication.</param>
/// <param name="localHolder">The <see cref="LocalVariableHolder"/> which holds shared local variable information.</param>
public static void EmitDeserializeCollectionValue( SerializerEmitter emitter, TracingILGenerator il, int unpackerArgumentIndex, LocalBuilder target, MemberInfo member, Type memberType, NilImplication nilImplication, LocalVariableHolder localHolder )
{
Contract.Requires( emitter != null );
Contract.Requires( il != null );
Contract.Requires( unpackerArgumentIndex >= 0 );
Contract.Requires( target != null );
Contract.Requires( member != null );
Contract.Requires( memberType != null );
Contract.Requires( localHolder != null );
var endOfDeserialization = il.DefineLabel( "END_OF_DESERIALIZATION" );
EmitGeneralRead( il, unpackerArgumentIndex );
switch ( nilImplication )
{
case NilImplication.MemberDefault:
{
/*
* if( unpacker.Data.Value.IsNil )
* {
* // Skip current.
* goto END_OF_DESERIALIZATION;
* }
*/
il.EmitAnyLdarg( unpackerArgumentIndex );
il.EmitGetProperty( Metadata._Unpacker.Data );
var data = localHolder.UnpackedData;
il.EmitAnyStloc( data );
il.EmitAnyLdloca( data );
il.EmitGetProperty( Metadata._Nullable<MessagePackObject>.Value );
var dataValue = localHolder.UnpackedDataValue;
il.EmitAnyStloc( dataValue );
il.EmitAnyLdloca( dataValue );
il.EmitGetProperty( Metadata._MessagePackObject.IsNil );
il.EmitBrtrue( endOfDeserialization );
break;
}
case NilImplication.Null:
case NilImplication.Prohibit:
{
/*
* // for Prohibit
* if( unpacker.Data.Value.IsNil )
* {
* throw SerializationEceptions.NewProhibitNullException( "..." );
* }
*
* // for Null, and
* if( unpacker.Data.Value.IsNil )
* {
* throw SerializationEceptions.NewReadOnlyMemberItemsMustNotBeNullMethod( "..." );
* }
*/
il.EmitAnyLdarg( unpackerArgumentIndex );
il.EmitGetProperty( Metadata._Unpacker.Data );
var data = localHolder.UnpackedData;
il.EmitAnyStloc( data );
il.EmitAnyLdloca( data );
il.EmitGetProperty( Metadata._Nullable<MessagePackObject>.Value );
var dataValue = localHolder.UnpackedDataValue;
il.EmitAnyStloc( dataValue );
il.EmitAnyLdloca( dataValue );
il.EmitGetProperty( Metadata._MessagePackObject.IsNil );
var endIf0 = il.DefineLabel( "END_IF0" );
il.EmitBrfalse_S( endIf0 );
il.EmitLdstr( member.Name );
if ( nilImplication == NilImplication.Prohibit )
{
il.EmitAnyCall( SerializationExceptions.NewNullIsProhibitedMethod );
}
else
{
// Because result member is readonly collection, so the member will not be null if packed value was nil.
il.EmitAnyCall( SerializationExceptions.NewReadOnlyMemberItemsMustNotBeNullMethod );
}
il.EmitThrow();
il.MarkLabel( endIf0 );
break;
}
}
/*
* if( !unpacker.IsArrayHeader && !unpacker.IsMapHeader )
* {
* throw new SerializatonException( "Cannot deserialize..." );
* }
*
* using( var subtreeUnpacker = unpacker.ReadSubtree() )
* {
* GET_SERIALIZER.UnpackTo( unpacker, result ) )
* }
*
* END_OF_DESERIALIZATION:
*/
var endIf = il.DefineLabel( "THEN" );
var serializerGetter = emitter.RegisterSerializer( memberType );
il.EmitAnyLdarg( unpackerArgumentIndex );
il.EmitGetProperty( Metadata._Unpacker.IsArrayHeader );
il.EmitBrtrue_S( endIf );
il.EmitAnyLdarg( unpackerArgumentIndex );
il.EmitGetProperty( Metadata._Unpacker.IsMapHeader );
il.EmitBrtrue_S( endIf );
// else
il.EmitLdstr( member.Name );
il.EmitAnyCall( SerializationExceptions.NewStreamDoesNotContainCollectionForMemberMethod );
il.EmitThrow();
// then
var subtreeUnpacker = localHolder.SubtreeUnpacker;
il.MarkLabel( endIf );
EmitUnpackerBeginReadSubtree( il, unpackerArgumentIndex, subtreeUnpacker );
serializerGetter( il, 0 );
il.EmitAnyLdloc( subtreeUnpacker );
il.EmitAnyLdloc( target );
Emittion.EmitLoadValue( il, member );
il.EmitAnyCall( typeof( MessagePackSerializer<> ).MakeGenericType( memberType ).GetMethod( "UnpackTo", new[] { typeof( Unpacker ), memberType } ) );
EmitUnpackerEndReadSubtree( il, subtreeUnpacker );
il.MarkLabel( endOfDeserialization );
}
/// <summary>
/// Emits the deserialize value.
/// </summary>
/// <param name="emitter">The emitter.</param>
/// <param name="il">The il generator.</param>
/// <param name="unpackerArgumentIndex">Index of the unpacker argument.</param>
/// <param name="value">The value local variable which stores unpacked value.</param>
/// <param name="targetType">The type of deserialzing type.</param>
/// <param name="member">The metadata for nil implication. Specify <c>null</c> if nil implication is not needed.</param>
/// <param name="memberName">The name of the member.</param>
/// <param name="endOfDeserialization">The end of deserialization label for nil implication.</param>
/// <param name="localHolder">The <see cref="LocalVariableHolder"/> which holds shared local variable information.</param>
private static void EmitDeserializeValueCore( SerializerEmitter emitter, TracingILGenerator il, int unpackerArgumentIndex, LocalBuilder value, Type targetType, SerializingMember? member, string memberName, Label endOfDeserialization, LocalVariableHolder localHolder )
{
var directUnpacking = Metadata._Unpacker.GetDirectReadMethod( value.LocalType );
if ( directUnpacking != null && ( member == null || !UnpackHelpers.IsReadOnlyAppendableCollectionMember( member.Value.Member ) ) )
{
var isSuccess = localHolder.IsDeserializationSucceeded;
il.EmitLdc_I4_0();
il.EmitAnyStloc( isSuccess );
il.BeginExceptionBlock();
il.EmitAnyLdarg( unpackerArgumentIndex );
il.EmitAnyLdloca( value );
il.EmitAnyCall( directUnpacking );
il.EmitAnyStloc( isSuccess );
il.BeginCatchBlock( typeof( MessageTypeException ) );
var ex = localHolder.GetCatchedException( typeof( MessageTypeException ) );
il.EmitAnyStloc( ex );
il.EmitTypeOf( targetType );
il.EmitLdstr( memberName );
il.EmitAnyLdloc( ex );
il.EmitAnyCall( SerializationExceptions.NewFailedToDeserializeMemberMethod );
il.EmitThrow();
il.EndExceptionBlock();
var endIf0 = il.DefineLabel( "END_IF" );
il.EmitAnyLdloc( isSuccess );
il.EmitBrtrue_S( endIf0 );
il.EmitAnyCall( SerializationExceptions.NewUnexpectedEndOfStreamMethod );
il.EmitThrow();
il.MarkLabel( endIf0 );
if ( member != null )
{
// If null, nil implication is NOT needed.
EmitNilImplicationForPrimitive( il, member.Value, value, endOfDeserialization );
}
}
else
{
EmitGeneralRead( il, unpackerArgumentIndex );
if ( member != null )
{
// If null, nil implication is NOT needed.
EmitNilImplication(
il,
unpackerArgumentIndex,
member.Value.Contract.Name,
member.Value.Contract.NilImplication,
endOfDeserialization,
localHolder
);
}
var thenIffCollection = il.DefineLabel( "THEN_IF_COLLECTION" );
var endIfCollection = il.DefineLabel( "END_IF_COLLECTION" );
/*
* if( !unpacker.IsArrayHeader && !unpacker.IsMapHeader )
* {
* value = GET_SERIALIZER().UnpackFrom( unpacker );
* }
* else
* {
* using( var subtreeUnpacker = unpacker.ReadSubtree() )
* {
* value = GET_SERIALIZER().UnpackFrom( subtreeUnpacker );
* }
* }
*/
il.EmitAnyLdarg( unpackerArgumentIndex );
il.EmitGetProperty( Metadata._Unpacker.IsArrayHeader );
il.EmitAnyLdarg( unpackerArgumentIndex );
il.EmitGetProperty( Metadata._Unpacker.IsMapHeader );
il.EmitOr();
il.EmitBrtrue_S( thenIffCollection );
EmitUnpackFrom( emitter, il, value, unpackerArgumentIndex );
il.EmitBr_S( endIfCollection );
var subtreeUnpacker = localHolder.SubtreeUnpacker;
il.MarkLabel( thenIffCollection );
EmitUnpackerBeginReadSubtree( il, unpackerArgumentIndex, subtreeUnpacker );
EmitUnpackFrom( emitter, il, value, subtreeUnpacker );
EmitUnpackerEndReadSubtree( il, subtreeUnpacker );
il.MarkLabel( endIfCollection );
}
}
/// <summary>
/// Emits the nil implication.
/// </summary>
/// <param name="il">The il generator.</param>
/// <param name="unpackerArgumentIndex">Index of the unpacker argument.</param>
/// <param name="memberName">Name of the deserializing member.</param>
/// <param name="nilImplication">The nil implication.</param>
/// <param name="endOfDeserialization">The label to the end of deserialization.</param>
/// <param name="localHolder">The <see cref="LocalVariableHolder"/> which holds shared local variable information.</param>
public static void EmitNilImplication(
TracingILGenerator il,
int unpackerArgumentIndex,
string memberName,
NilImplication nilImplication,
Label endOfDeserialization,
LocalVariableHolder localHolder
)
{
switch ( nilImplication )
{
case NilImplication.MemberDefault:
{
// TODO: This should be empty for extra items.
/*
* if( unpacker.Data.Value.IsNil )
* {
* // Skip current.
* goto END_OF_DESERIALIZATION;
* }
*/
il.EmitAnyLdarg( unpackerArgumentIndex );
il.EmitGetProperty( Metadata._Unpacker.Data );
var data = localHolder.UnpackedData;
il.EmitAnyStloc( data );
il.EmitAnyLdloca( data );
il.EmitGetProperty( Metadata._Nullable<MessagePackObject>.Value );
var dataValue = localHolder.UnpackedDataValue;
il.EmitAnyStloc( dataValue );
il.EmitAnyLdloca( dataValue );
il.EmitGetProperty( Metadata._MessagePackObject.IsNil );
il.EmitBrtrue( endOfDeserialization );
break;
}
case NilImplication.Prohibit:
{
/*
* if( unpacker.Data.Value.IsNil )
* {
* throw SerializationEceptions.NewProhibitNullException( "..." );
* }
*/
il.EmitAnyLdarg( unpackerArgumentIndex );
il.EmitGetProperty( Metadata._Unpacker.Data );
var data = localHolder.UnpackedData;
il.EmitAnyStloc( data );
il.EmitAnyLdloca( data );
il.EmitGetProperty( Metadata._Nullable<MessagePackObject>.Value );
var dataValue = localHolder.UnpackedDataValue;
il.EmitAnyStloc( dataValue );
il.EmitAnyLdloca( dataValue );
il.EmitGetProperty( Metadata._MessagePackObject.IsNil );
var endIf0 = il.DefineLabel( "END_IF0" );
il.EmitBrfalse_S( endIf0 );
il.EmitLdstr( memberName );
il.EmitAnyCall( SerializationExceptions.NewNullIsProhibitedMethod );
il.EmitThrow();
il.MarkLabel( endIf0 );
break;
}
}
}
/// <summary>
/// Emits the deserialize value.
/// </summary>
/// <param name="emitter">The emitter.</param>
/// <param name="il">The il generator.</param>
/// <param name="unpackerArgumentIndex">Index of the unpacker argument.</param>
/// <param name="result">The result local variable which represents the result of deserialization.</param>
/// <param name="member">The metadata for nil implication. Specify <c>null</c> if nil implication is not needed.</param>
/// <param name="localHolder">The <see cref="LocalVariableHolder"/> which holds shared local variable information.</param>
public static void EmitDeserializeValue( SerializerEmitter emitter, TracingILGenerator il, int unpackerArgumentIndex, LocalBuilder result, SerializingMember member, LocalVariableHolder localHolder )
{
Contract.Requires( emitter != null );
Contract.Requires( il != null );
Contract.Requires( unpackerArgumentIndex >= 0 );
Contract.Requires( result != null );
var endOfDeserialization = il.DefineLabel( "END_OF_DESERIALIZATION" );
/*
*
* if( !unpacker.IsArrayHeader && !unpacker.IsMapHeader )
* {
* valueN = GET_SERIALIZER.UnpackFrom( unpacker );
* }
* else
* {
* using( var subtreeUnpacker = unpacker.ReadSubtree )
* {
* valueN = GET_SERIALIZER.UnpackFrom( unpacker );
* }
* }
*
* isValueNUnpacked = true;
* END_OF_DESERIALIZATION:
*/
LocalBuilder value;
bool useDummyNullableValue = false;
if ( member.Member.GetMemberValueType().GetIsValueType() &&
Nullable.GetUnderlyingType( member.Member.GetMemberValueType() ) == null )
{
// Use temporary nullable value for nil implication.
value = localHolder.GetDeserializedValue(
typeof( Nullable<> ).MakeGenericType( member.Member.GetMemberValueType() ) );
useDummyNullableValue = true;
}
else
{
value = localHolder.GetDeserializedValue( member.Member.GetMemberValueType() );
}
if ( value.LocalType.GetIsValueType() )
{
il.EmitAnyLdloca( value );
il.EmitInitobj( value.LocalType );
}
else
{
il.EmitLdnull();
il.EmitAnyStloc( value );
}
EmitDeserializeValueCore( emitter, il, unpackerArgumentIndex, value, result.LocalType, member, member.Contract.Name, endOfDeserialization, localHolder );
if ( result.LocalType.IsValueType )
{
il.EmitAnyLdloca( result );
}
else
{
il.EmitAnyLdloc( result );
}
if ( useDummyNullableValue )
{
il.EmitAnyLdloca( value );
il.EmitGetProperty( typeof( Nullable<> ).MakeGenericType( member.Member.GetMemberValueType() ).GetProperty( "Value" ) );
}
else
{
il.EmitAnyLdloc( value );
}
EmitStoreValue( il, member.Member );
il.MarkLabel( endOfDeserialization );
}
/// <summary>
/// Emits deserializing value instructions.
/// </summary>
/// <param name="emitter">The emitter.</param>
/// <param name="il">The il generator.</param>
/// <param name="unpackerArgumentIndex">Index of the unpacker argument.</param>
/// <param name="value">The value local variable which stores unpacked value.</param>
/// <param name="targetType">The type of deserialzing type.</param>
/// <param name="memberName">The name of the member.</param>
/// <param name="localHolder">The <see cref="LocalVariableHolder"/> which holds shared local variable information.</param>
public static void EmitDeserializeValueWithoutNilImplication( SerializerEmitter emitter, TracingILGenerator il, int unpackerArgumentIndex, LocalBuilder value, Type targetType, string memberName, LocalVariableHolder localHolder )
{
Contract.Requires( emitter != null );
Contract.Requires( il != null );
Contract.Requires( unpackerArgumentIndex >= 0 );
Contract.Requires( value != null );
var endOfDeserialization = il.DefineLabel( "END_OF_DESERIALIZATION" );
/*
*
* if( !unpacker.IsArrayHeader && !unpacker.IsMapHeader )
* {
* valueN = GET_SERIALIZER.UnpackFrom( unpacker );
* }
* else
* {
* using( var subtreeUnpacker = unpacker.ReadSubtree )
* {
* valueN = GET_SERIALIZER.UnpackFrom( unpacker );
* }
* }
*
* isValueNUnpacked = true;
* END_OF_DESERIALIZATION:
*/
// Nil implication is not needed.
EmitDeserializeValueCore( emitter, il, unpackerArgumentIndex, value, targetType, null, memberName, endOfDeserialization, localHolder );
il.MarkLabel( endOfDeserialization );
}
/// <summary>
/// Emits gets <see cref="Unpacker.ItemsCount"/> with exception handling.
/// Note that final state is the value is pushed top of the evaluation stack.
/// </summary>
/// <param name="il">IL generator.</param>
/// <param name="unpackerArgumentIndex">Argument index of the unpacker.</param>
/// <param name="localHolder">The <see cref="LocalVariableHolder"/> which holds shared local variable information.</param>
public static void EmitGetUnpackerItemsCountAsInt32( TracingILGenerator il, int unpackerArgumentIndex, LocalVariableHolder localHolder )
{
Contract.Requires( il != null );
Contract.Requires( unpackerArgumentIndex >= 0 );
/*
* long rawItemsCount;
* try
* {
* rawItemsCount = unpacker.ItemsCount;
* }
* catch ( InvalidOperationException ex )
* {
* throw SerializationExceptions.NewIsIncorrectStream( ex );
* }
*
* if( rawItemsCount > Int32.MaxValue )
* {
* throw SerializationException.NewIsTooLargeCollection();
* }
*
* ... unchecked( ( int )rawItemsCount );
*/
il.EmitAnyLdloca( localHolder.RawItemsCount );
il.EmitInitobj( typeof( long ) );
il.BeginExceptionBlock();
il.EmitAnyLdarg( unpackerArgumentIndex );
il.EmitGetProperty( Metadata._Unpacker.ItemsCount );
il.EmitAnyStloc( localHolder.RawItemsCount );
il.BeginCatchBlock( typeof( InvalidOperationException ) );
il.EmitAnyCall( SerializationExceptions.NewIsIncorrectStreamMethod );
il.EmitThrow();
il.EndExceptionBlock();
il.EmitAnyLdloc( localHolder.RawItemsCount );
il.EmitLdc_I8( Int32.MaxValue );
var endIf = il.DefineLabel();
il.EmitBle_S( endIf );
il.EmitAnyCall( SerializationExceptions.NewIsTooLargeCollectionMethod );
il.EmitThrow();
il.MarkLabel( endIf );
il.EmitAnyLdloc( localHolder.RawItemsCount );
il.EmitConv_I4();
}
/// <summary>
/// Emits the serializing value instructions.
/// </summary>
/// <param name="emitter">The emitter.</param>
/// <param name="il">The il generator.</param>
/// <param name="packerArgumentIndex">Index of the packer argument.</param>
/// <param name="valueType">Type of the current member value.</param>
/// <param name="memberName">Name of the current member.</param>
/// <param name="nilImplication">The nil implication of the current member.</param>
/// <param name="loadValueEmitter">The delegate which emits case specific value loading instructions.</param>
/// <param name="localHolder">The <see cref="LocalVariableHolder"/> which holds shared local variable information.</param>
public static void EmitSerializeValue( SerializerEmitter emitter, TracingILGenerator il, int packerArgumentIndex, Type valueType, string memberName, NilImplication nilImplication, Action<TracingILGenerator> loadValueEmitter, LocalVariableHolder localHolder )
{
Contract.Requires( emitter != null );
Contract.Requires( il != null );
Contract.Requires( packerArgumentIndex >= 0 );
Contract.Requires( valueType != null );
Contract.Requires( loadValueEmitter != null );
/*
* var serializingValue = LOAD_VALUE;
* NULL_PROHIBIT_HANDLING
* GET_SERIALIZER.PackTo( packer, serializingValue );
*/
var value = localHolder.GetSerializingValue( valueType );
loadValueEmitter( il );
il.EmitAnyStloc( value );
if ( memberName != null && nilImplication == NilImplication.Prohibit )
{
/*
* if( serializingValue == null )(
* {
* throw SerializationExceptions.NewNullIsProhibited();
* }
*/
if ( !valueType.IsValueType )
{
il.EmitAnyLdloc( value );
var endIf = il.DefineLabel( "END_IF" );
il.EmitBrtrue_S( endIf );
il.EmitLdstr( memberName );
il.EmitAnyCall( SerializationExceptions.NewNullIsProhibitedMethod );
il.EmitThrow();
il.MarkLabel( endIf );
}
else if ( Nullable.GetUnderlyingType( valueType ) != null )
{
il.EmitAnyLdloca( value );
il.EmitGetProperty( typeof( Nullable<> ).MakeGenericType( Nullable.GetUnderlyingType( valueType ) ).GetProperty( "HasValue" ) );
var endIf = il.DefineLabel( "END_IF" );
il.EmitBrtrue_S( endIf );
il.EmitLdstr( memberName );
il.EmitAnyCall( SerializationExceptions.NewNullIsProhibitedMethod );
il.EmitThrow();
il.MarkLabel( endIf );
}
}
var serializerGetter = emitter.RegisterSerializer( valueType );
serializerGetter( il, 0 );
il.EmitAnyLdarg( packerArgumentIndex );
il.EmitAnyLdloc( value );
il.EmitAnyCall( typeof( MessagePackSerializer<> ).MakeGenericType( valueType ).GetMethod( "PackTo" ) );
}
private static void CreateTuplePack( SerializerEmitter emiter, Type tupleType, IList<Type> itemTypes, Action<TracingILGenerator, LocalBuilder> loadTupleEmitter )
{
var il = emiter.GetPackToMethodILGenerator();
var localHolder = new LocalVariableHolder( il );
try
{
/*
* packer.PackArrayHeader( cardinarity );
* _serializer0.PackTo( packer, tuple.Item1 );
* :
* _serializer6.PackTo( packer, tuple.item7 );
* _serializer7.PackTo( packer, tuple.Rest.Item1 );
*/
var tuple = il.DeclareLocal( tupleType, "tuple" );
loadTupleEmitter( il, tuple );
il.EmitAnyLdarg( 1 );
il.EmitAnyLdc_I4( itemTypes.Count );
il.EmitAnyCall( Metadata._Packer.PackArrayHeader );
il.EmitPop();
var tupleTypeList = TupleItems.CreateTupleTypeList( itemTypes );
int depth = -1;
for ( int i = 0; i < itemTypes.Count; i++ )
{
if ( i % 7 == 0 )
{
depth++;
}
Emittion.EmitSerializeValue(
emiter,
il,
1,
itemTypes[ i ],
null,
NilImplication.MemberDefault,
il0 =>
{
il0.EmitAnyLdloc( tuple );
for ( int j = 0; j < depth; j++ )
{
// .TRest.TRest ...
var rest = tupleTypeList[ j ].GetProperty( "Rest" );
il0.EmitGetProperty( rest );
}
var itemn = tupleTypeList[ depth ].GetProperty( "Item" + ( ( i % 7 ) + 1 ) );
#if DEBUG
Contract.Assert( itemn != null, tupleTypeList[ depth ].GetFullName() + "::Item" + ( ( i % 7 ) + 1 ) + " [ " + depth + " ] @ " + i );
#endif
il0.EmitGetProperty( itemn );
},
localHolder
);
}
il.EmitRet();
}
finally
{
il.FlushTrace();
}
}
private static void CreateTupleUnpackFrom( SerializerEmitter emitter, IList<Type> itemTypes )
{
var il = emitter.GetUnpackFromMethodILGenerator();
var localHolder = new LocalVariableHolder( il );
try
{
/*
* checked
* {
* if (!unpacker.IsArrayHeader)
* {
* throw SerializationExceptions.NewIsNotArrayHeader();
* }
*
* if ((int)unpacker.ItemsCount != n)
* {
* throw SerializationExceptions.NewTupleCardinarityIsNotMatch(n, (int)unpacker.ItemsCount);
* }
*
* if (!unpacker.Read())
* {
* throw SerializationExceptions.NewMissingItem(0);
* }
*
* DESERIALIZE_VALUE
*
* :
*
* return new Tuple<...>( item1, ... , new Tuple<...>(...)...);
* }
*/
il.EmitAnyLdarg( 1 );
il.EmitGetProperty( Metadata._Unpacker.IsArrayHeader );
var endIf = il.DefineLabel( "END_IF" );
il.EmitBrtrue_S( endIf );
il.EmitAnyCall( SerializationExceptions.NewIsNotArrayHeaderMethod );
il.EmitThrow();
il.MarkLabel( endIf );
var itemsCount = localHolder.ItemsCount;
Emittion.EmitGetUnpackerItemsCountAsInt32( il, 1, localHolder );
il.EmitAnyLdc_I4( itemTypes.Count );
il.EmitAnyStloc( itemsCount );
il.EmitAnyLdloc( itemsCount );
var endIf1 = il.DefineLabel( "END_IF1" );
il.EmitBeq_S( endIf1 );
il.EmitAnyLdc_I4( itemTypes.Count );
il.EmitAnyLdloc( itemsCount );
il.EmitAnyCall( SerializationExceptions.NewTupleCardinarityIsNotMatchMethod );
il.EmitThrow();
il.MarkLabel( endIf1 );
var itemLocals = new LocalBuilder[ itemTypes.Count ];
var useDummyNullables = new bool[ itemTypes.Count ];
for ( int i = 0; i < itemTypes.Count; i++ )
{
if ( itemTypes[ i ] != typeof( MessagePackObject ) &&
itemTypes[ i ].GetIsValueType() &&
Nullable.GetUnderlyingType( itemTypes[ i ] ) == null )
{
// Use temporary nullable value for nil implication.
itemLocals[ i ] = il.DeclareLocal( typeof( Nullable<> ).MakeGenericType( itemTypes[ i ] ), "item" + i.ToString( CultureInfo.InvariantCulture ) );
useDummyNullables[ i ] = true;
}
else
{
itemLocals[ i ] = il.DeclareLocal( itemTypes[ i ], "item" + i.ToString( CultureInfo.InvariantCulture ) );
}
// Tuple member should be NilImplication.MemberDefault.
Emittion.EmitDeserializeValueWithoutNilImplication( emitter, il, 1, itemLocals[ i ], typeof( Tuple ), "Item" + ( i ).ToString( CultureInfo.InvariantCulture ), localHolder );
}
for ( int i = 0; i < itemLocals.Length; i++ )
{
if ( useDummyNullables[ i ] )
{
il.EmitAnyLdloca( itemLocals[ i ] );
il.EmitGetProperty( typeof( Nullable<> ).MakeGenericType( itemTypes[ i ] ).GetProperty( "Value" ) );
}
else
{
il.EmitAnyLdloc( itemLocals[ i ] );
}
}
var tupleTypeList = TupleItems.CreateTupleTypeList( itemTypes );
for ( int depth = tupleTypeList.Count - 1; 0 <= depth; depth-- )
{
il.EmitNewobj( tupleTypeList[ depth ].GetConstructors().Single() );
}
il.EmitRet();
}
finally
{
il.FlushTrace();
}
}
private static void CreateMapUnpackFrom( SerializationContext context, Type targetType, SerializerEmitter emitter, CollectionTraits traits )
{
var il = emitter.GetUnpackFromMethodILGenerator();
var localHolder = new LocalVariableHolder( il );
var instanceType = targetType;
try
{
/*
* if (!unpacker.IsMapHeader)
* {
* throw SerializationExceptions.NewIsNotMapHeader();
* }
*
* TDictionary<TKey, TValue> dictionary = new ...;
* this.UnpackToCore(unpacker, dictionary);
* return dictionary;
*/
if ( targetType.IsInterface || targetType.IsAbstract )
{
instanceType = context.DefaultCollectionTypes.GetConcreteType( targetType );
if( instanceType == null )
{
il.EmitTypeOf( targetType );
il.EmitAnyCall( SerializationExceptions.NewNotSupportedBecauseCannotInstanciateAbstractTypeMethod );
il.EmitThrow();
return;
}
}
il.EmitAnyLdarg( 1 );
il.EmitGetProperty( Metadata._Unpacker.IsMapHeader );
var endIf = il.DefineLabel( "END_IF" );
il.EmitBrtrue_S( endIf );
il.EmitAnyCall( SerializationExceptions.NewIsNotMapHeaderMethod );
il.EmitThrow();
il.MarkLabel( endIf );
var collection = localHolder.GetDeserializingCollection( instanceType );
Emittion.EmitConstruction(
il,
collection,
il0 => Emittion.EmitGetUnpackerItemsCountAsInt32( il0, 1, localHolder )
);
EmitInvokeMapUnpackToHelper( targetType, emitter, traits, il, 1, il0 => il0.EmitAnyLdloc( collection ) );
il.EmitAnyLdloc( collection );
il.EmitRet();
}
finally
{
il.FlushTrace();
}
}
private static void CreatePackArrayProceduresCore( Type targetType, SerializerEmitter emitter, CollectionTraits traits )
{
var il = emitter.GetPackToMethodILGenerator();
var localHolder = new LocalVariableHolder( il );
try
{
// Array
if ( targetType.IsArray )
{
/*
* // array
* packer.PackArrayHeader( length );
* for( int i = 0; i < length; i++ )
* {
* this._serializer.PackTo( packer, collection[ i ] );
* }
*/
var length = localHolder.PackingCollectionCount;
il.EmitAnyLdarg( 2 );
il.EmitLdlen();
il.EmitAnyStloc( length );
il.EmitAnyLdarg( 1 );
il.EmitAnyLdloc( length );
il.EmitAnyCall( Metadata._Packer.PackArrayHeader );
il.EmitPop();
Emittion.EmitFor(
il,
length,
( il0, i ) =>
Emittion.EmitSerializeValue(
emitter,
il0,
1,
traits.ElementType,
null,
NilImplication.MemberDefault,
il1 =>
{
il1.EmitAnyLdarg( 2 );
il1.EmitAnyLdloc( i );
il1.EmitLdelem( traits.ElementType );
},
localHolder
)
);
}
else if ( traits.CountProperty == null )
{
/*
* array = collection.ToArray();
* packer.PackArrayHeader( length );
* for( int i = 0; i < length; i++ )
* {
* this._serializer.PackTo( packer, array[ i ] );
* }
*/
var array = localHolder.GetSerializingCollection( traits.ElementType.MakeArrayType() );
EmitLoadTarget( targetType, il, 2 );
il.EmitAnyCall( Metadata._Enumerable.ToArray1Method.MakeGenericMethod( traits.ElementType ) );
il.EmitAnyStloc( array );
var length = localHolder.PackingCollectionCount;
il.EmitAnyLdloc( array );
il.EmitLdlen();
il.EmitAnyStloc( length );
il.EmitAnyLdarg( 1 );
il.EmitAnyLdloc( length );
il.EmitAnyCall( Metadata._Packer.PackArrayHeader );
il.EmitPop();
Emittion.EmitFor(
il,
length,
( il0, i ) =>
Emittion.EmitSerializeValue(
emitter,
il0,
1,
traits.ElementType,
null,
NilImplication.MemberDefault,
il1 =>
{
il1.EmitAnyLdloc( array );
il1.EmitAnyLdloc( i );
il1.EmitLdelem( traits.ElementType );
},
localHolder
)
);
}
else
{
/*
* // Enumerable
* packer.PackArrayHeader( collection.Count );
* foreach( var item in list )
* {
* this._serializer.PackTo( packer, array[ i ] );
* }
*/
var collection = localHolder.GetSerializingCollection( targetType );
// This instruction always ldarg, not to be ldarga
il.EmitAnyLdarg( 2 );
il.EmitAnyStloc( collection );
var count = localHolder.PackingCollectionCount;
EmitLoadTarget( targetType, il, 2 );
il.EmitGetProperty( traits.CountProperty );
il.EmitAnyStloc( count );
il.EmitAnyLdarg( 1 );
il.EmitAnyLdloc( count );
il.EmitAnyCall( Metadata._Packer.PackArrayHeader );
il.EmitPop();
Emittion.EmitForEach(
il,
traits,
collection,
( il0, getCurrentEmitter ) =>
Emittion.EmitSerializeValue(
emitter,
il0,
1,
traits.ElementType,
null,
NilImplication.MemberDefault,
_ => getCurrentEmitter(),
localHolder
)
);
}
il.EmitRet();
}
finally
{
il.FlushTrace();
}
}
private static void CreateMapPack( Type targetType, SerializerEmitter emiter, CollectionTraits traits )
{
var il = emiter.GetPackToMethodILGenerator();
var localHolder = new LocalVariableHolder( il );
try
{
/*
* int count = ((ICollection<KeyValuePair<string, DateTime>>)dictionary).Count;
* packer.PackMapHeader(count);
* foreach (KeyValuePair<string, DateTime> current in dictionary)
* {
* this._serializer0.PackTo(packer, current.Key);
* this._serializer1.PackTo(packer, current.Value);
* }
*/
var collection = localHolder.GetSerializingCollection( targetType );
var item = localHolder.GetSerializingCollectionItem( traits.ElementType );
var keyProperty = traits.ElementType.GetProperty( "Key" );
var valueProperty = traits.ElementType.GetProperty( "Value" );
// This instruction is always ldarg, not to be ldarga.
il.EmitAnyLdarg( 2 );
il.EmitAnyStloc( collection );
var count = localHolder.PackingCollectionCount;
EmitLoadTarget( targetType, il, collection );
il.EmitGetProperty( traits.CountProperty );
il.EmitAnyStloc( count );
il.EmitAnyLdarg( 1 );
il.EmitAnyLdloc( count );
il.EmitAnyCall( Metadata._Packer.PackMapHeader );
il.EmitPop();
Emittion.EmitForEach(
il,
traits,
collection,
( il0, getCurrentEmitter ) =>
{
if ( traits.ElementType.IsGenericType )
{
Contract.Assert( traits.ElementType.GetGenericTypeDefinition() == typeof( KeyValuePair<,> ) );
getCurrentEmitter();
il0.EmitAnyStloc( item );
Emittion.EmitSerializeValue(
emiter,
il0,
1,
traits.ElementType.GetGenericArguments()[ 0 ],
null,
NilImplication.MemberDefault,
il1 =>
{
il1.EmitAnyLdloca( item );
il1.EmitGetProperty( keyProperty );
},
localHolder
);
Emittion.EmitSerializeValue(
emiter,
il0,
1,
traits.ElementType.GetGenericArguments()[ 1 ],
null,
NilImplication.MemberDefault,
il1 =>
{
il1.EmitAnyLdloca( item );
il1.EmitGetProperty( valueProperty );
},
localHolder
);
}
else
{
Contract.Assert( traits.ElementType == typeof( DictionaryEntry ) );
getCurrentEmitter();
il0.EmitAnyStloc( item );
Emittion.EmitSerializeValue(
emiter,
il0,
1,
typeof( MessagePackObject ),
null,
NilImplication.MemberDefault,
il1 =>
{
il0.EmitAnyLdloca( item );
il0.EmitGetProperty( Metadata._DictionaryEntry.Key );
il0.EmitUnbox_Any( typeof( MessagePackObject ) );
},
localHolder
);
Emittion.EmitSerializeValue(
emiter,
il0,
1,
typeof( MessagePackObject ),
null,
NilImplication.MemberDefault,
il1 =>
{
il0.EmitAnyLdloca( item );
il0.EmitGetProperty( Metadata._DictionaryEntry.Value );
il0.EmitUnbox_Any( typeof( MessagePackObject ) );
},
localHolder
);
}
}
);
il.EmitRet();
}
finally
{
il.FlushTrace();
}
}
private static void CreateArrayUnpackFrom( Type targetType, SerializerEmitter emitter, CollectionTraits traits )
{
var il = emitter.GetUnpackFromMethodILGenerator();
var localHolder = new LocalVariableHolder( il );
try
{
if ( targetType.IsInterface || targetType.IsAbstract )
{
il.EmitTypeOf( targetType );
il.EmitAnyCall( SerializationExceptions.NewNotSupportedBecauseCannotInstanciateAbstractTypeMethod );
il.EmitThrow();
return;
}
/*
* if (!unpacker.IsArrayHeader)
* {
* throw SerializationExceptions.NewIsNotArrayHeader();
* }
*
* TCollection collection = new ...;
* this.UnpackToCore(unpacker, array);
* return collection;
*/
il.EmitAnyLdarg( 1 );
il.EmitGetProperty( Metadata._Unpacker.IsArrayHeader );
var endIf = il.DefineLabel( "END_IF" );
il.EmitBrtrue_S( endIf );
il.EmitAnyCall( SerializationExceptions.NewIsNotArrayHeaderMethod );
il.EmitThrow();
il.MarkLabel( endIf );
var collection = localHolder.GetDeserializingCollection( targetType );
// Emit newobj, newarr, or call ValueType..ctor()
Emittion.EmitConstruction(
il,
collection,
il0 => Emittion.EmitGetUnpackerItemsCountAsInt32( il0, 1, localHolder )
);
EmitInvokeArrayUnpackToHelper( targetType, emitter, traits, il, 1, il0 => il0.EmitAnyLdloc( collection ) );
il.EmitAnyLdloc( collection );
il.EmitRet();
}
finally
{
il.FlushTrace();
}
}
/// <summary>
/// Emits the nil implication.
/// </summary>
/// <param name="il">The il generator.</param>
/// <param name="unpackerArgumentIndex">Index of the unpacker argument.</param>
/// <param name="member">Metadata of the serializing member.</param>
/// <param name="endOfDeserialization">The label to the end of deserialization.</param>
/// <param name="localHolder">The <see cref="LocalVariableHolder"/> which holds shared local variable information.</param>
public static void EmitNilImplication(
TracingILGenerator il,
int unpackerArgumentIndex,
SerializingMember member,
Label endOfDeserialization,
LocalVariableHolder localHolder
)
{
switch ( member.Contract.NilImplication )
{
case NilImplication.MemberDefault:
{
// TODO: This should be empty for extra items.
/*
* if( unpacker.Data.Value.IsNil )
* {
* // Skip current.
* goto END_OF_DESERIALIZATION;
* }
*/
il.EmitAnyLdarg( unpackerArgumentIndex );
il.EmitGetProperty( Metadata._Unpacker.LastReadData );
var data = localHolder.UnpackedData;
il.EmitAnyStloc( data );
il.EmitAnyLdloca( data );
il.EmitGetProperty( Metadata._MessagePackObject.IsNil );
il.EmitBrtrue( endOfDeserialization );
break;
}
case NilImplication.Null:
{
if ( member.Member.GetMemberValueType().GetIsValueType() && Nullable.GetUnderlyingType( member.Member.GetMemberValueType() ) == null )
{
throw SerializationExceptions.NewValueTypeCannotBeNull(
member.Contract.Name, member.Member.GetMemberValueType(), member.Member.DeclaringType
);
}
if ( !member.Member.CanSetValue() )
{
throw SerializationExceptions.NewReadOnlyMemberItemsMustNotBeNull(
member.Contract.Name
);
}
break;
}
case NilImplication.Prohibit:
{
if ( !member.Member.CanSetValue() )
{
throw SerializationExceptions.NewReadOnlyMemberItemsMustNotBeNull(
member.Contract.Name
);
}
/*
* if( unpacker.Data.Value.IsNil )
* {
* throw SerializationEceptions.NewProhibitNullException( "..." );
* }
*/
il.EmitAnyLdarg( unpackerArgumentIndex );
il.EmitGetProperty( Metadata._Unpacker.LastReadData );
var data = localHolder.UnpackedData;
il.EmitAnyStloc( data );
il.EmitAnyLdloca( data );
il.EmitGetProperty( Metadata._MessagePackObject.IsNil );
var endIf0 = il.DefineLabel( "END_IF0" );
il.EmitBrfalse_S( endIf0 );
il.EmitLdstr( member.Contract.Name );
il.EmitAnyCall( SerializationExceptions.NewNullIsProhibitedMethod );
il.EmitThrow();
il.MarkLabel( endIf0 );
break;
}
}
}
private static void EmitUnpackMembersFromArray(SerializerEmitter emitter, TracingILGenerator unpackerIL, SerializingMember[] entries, LocalBuilder result, LocalVariableHolder localHolder)
{
/*
* int unpacked = 0;
* int itemsCount = unpacker.ItemsCount;
*
* :
* if( unpacked == itemsCount )
* {
* HandleNilImplication(...);
* }
* else
* {
* #if PRIMITIVE
* if( !unpacker.ReadT( out local1 ) )
* {
* throw SerializationExceptions.NewUnexpectedEndOfStreamMethod();
* }
* #else
* if( !unpacker.Read() )
* {
* throw SerializationExceptions.NewUnexpectedEndOfStreamMethod();
* }
*
* local1 = this._serializer1.Unpack
* #endif
* unpacked++;
* }
* :
*/
// TODO: Supports ExtensionObject like round-tripping.
var itemsCount = localHolder.ItemsCount;
var unpacked = unpackerIL.DeclareLocal(typeof(int), "unpacked");
Emittion.EmitGetUnpackerItemsCountAsInt32(unpackerIL, 1, localHolder);
unpackerIL.EmitAnyStloc(itemsCount);
for (int i = 0; i < entries.Length; i++)
{
var endIf0 = unpackerIL.DefineLabel("END_IF");
var else0 = unpackerIL.DefineLabel("ELSE");
unpackerIL.EmitAnyLdloc(unpacked);
unpackerIL.EmitAnyLdloc(itemsCount);
unpackerIL.EmitBlt(else0);
// Tail missing member handling.
if (entries[i].Member != null)
{
// Respect nil implication.
Emittion.EmitNilImplication(unpackerIL, 1, entries[i].Contract.Name, entries[i].Contract.NilImplication, endIf0, localHolder);
}
unpackerIL.EmitBr(endIf0);
unpackerIL.MarkLabel(else0);
if (entries[i].Member == null)
{
Emittion.EmitGeneralRead(unpackerIL, 1);
// Ignore undefined member -- Nop.
}
else if (UnpackHelpers.IsReadOnlyAppendableCollectionMember(entries[i].Member))
{
Emittion.EmitDeserializeCollectionValue(
emitter,
unpackerIL,
1,
result,
entries[i].Member,
entries[i].Member.GetMemberValueType(),
entries[i].Contract.NilImplication,
localHolder
);
}
else
{
Emittion.EmitDeserializeValue(
emitter,
unpackerIL,
1,
result,
entries[i],
localHolder
);
}
unpackerIL.EmitAnyLdloc(unpacked);
unpackerIL.EmitLdc_I4_1();
unpackerIL.EmitAdd();
unpackerIL.EmitAnyStloc(unpacked);
unpackerIL.MarkLabel(endIf0);
}
}
private static void CreateMapPack(Type targetType, SerializerEmitter emiter, CollectionTraits traits)
{
TracingILGenerator packToMethodILGenerator = emiter.GetPackToMethodILGenerator();
LocalVariableHolder localHolder = new LocalVariableHolder(packToMethodILGenerator);
try
{
< > c__DisplayClass20 class3;
LocalBuilder serializingCollection = localHolder.GetSerializingCollection(targetType);
LocalBuilder item = localHolder.GetSerializingCollectionItem(traits.ElementType);
PropertyInfo keyProperty = traits.ElementType.GetProperty("Key");
PropertyInfo valueProperty = traits.ElementType.GetProperty("Value");
packToMethodILGenerator.EmitAnyLdarg(2);
packToMethodILGenerator.EmitAnyStloc(serializingCollection);
LocalBuilder packingCollectionCount = localHolder.PackingCollectionCount;
EmitLoadTarget(targetType, packToMethodILGenerator, serializingCollection);
packToMethodILGenerator.EmitGetProperty(traits.CountProperty);
packToMethodILGenerator.EmitAnyStloc(packingCollectionCount);
packToMethodILGenerator.EmitAnyLdarg(1);
packToMethodILGenerator.EmitAnyLdloc(packingCollectionCount);
packToMethodILGenerator.EmitAnyCall(_Packer.PackMapHeader);
packToMethodILGenerator.EmitPop();
Emittion.EmitForEach(packToMethodILGenerator, traits, serializingCollection, delegate(TracingILGenerator il0, Action getCurrentEmitter) {
Action <TracingILGenerator> loadValueEmitter = null;
Action <TracingILGenerator> action2 = null;
Action <TracingILGenerator> action3 = null;
Action <TracingILGenerator> action4 = null;
< > c__DisplayClass20 class1 = class3;
if (traits.ElementType.IsGenericType)
{
Contract.Assert(traits.ElementType.GetGenericTypeDefinition() == typeof(KeyValuePair <,>));
getCurrentEmitter();
il0.EmitAnyStloc(item);
if (loadValueEmitter == null)
{
loadValueEmitter = delegate(TracingILGenerator il1) {
il1.EmitAnyLdloca(item);
il1.EmitGetProperty(keyProperty);
};
}
Emittion.EmitSerializeValue(emiter, il0, 1, traits.ElementType.GetGenericArguments()[0], null, NilImplication.MemberDefault, loadValueEmitter, localHolder);
if (action2 == null)
{
action2 = delegate(TracingILGenerator il1) {
il1.EmitAnyLdloca(item);
il1.EmitGetProperty(valueProperty);
};
}
Emittion.EmitSerializeValue(emiter, il0, 1, traits.ElementType.GetGenericArguments()[1], null, NilImplication.MemberDefault, action2, localHolder);
}
else
{
Contract.Assert(traits.ElementType == typeof(DictionaryEntry));
getCurrentEmitter();
il0.EmitAnyStloc(item);
if (action3 == null)
{
action3 = delegate(TracingILGenerator il1) {
il0.EmitAnyLdloca(item);
il0.EmitGetProperty(_DictionaryEntry.Key);
il0.EmitUnbox_Any(typeof(MessagePackObject));
};
}
Emittion.EmitSerializeValue(emiter, il0, 1, typeof(MessagePackObject), null, NilImplication.MemberDefault, action3, localHolder);
if (action4 == null)
{
action4 = delegate(TracingILGenerator il1) {
il0.EmitAnyLdloca(item);
il0.EmitGetProperty(_DictionaryEntry.Value);
il0.EmitUnbox_Any(typeof(MessagePackObject));
};
}
Emittion.EmitSerializeValue(emiter, il0, 1, typeof(MessagePackObject), null, NilImplication.MemberDefault, action4, localHolder);
}
});
