internal Class CreateSerializerFor(TypeNode type) {
// todo: look in the genCache for other serializer assemblies that may have already
// created the serializer for this type and make an assembly reference to that
// serializer instead of creating a complete duplicate.
TypeNode saved = tempChecker.currentType;
Class c = (Class)serializers[type];
if (c != null) return c;
c = new Class();
c.Flags = TypeFlags.Class | TypeFlags.BeforeFieldInit;
// copy the accessibility of the type we are serializing.
c.Flags |= (type.Flags & (TypeFlags.Public | TypeFlags.NestedAssembly));
c.Name = Identifier.For(GetSerializerName(type));
c.Namespace = Identifier.For(GetSerializerNamespace(type));
c.DeclaringModule = this.module;
c.Members = new MemberList();
c.Attributes = new AttributeList();
c.BaseClass = Runtime.XmlSerializer;
tempChecker.currentType = c;
InstanceInitializer ii = Runtime.XmlSerializerAttribute.GetConstructor();
MemberBinding mb = new MemberBinding(null, ii);
mb.Type = Runtime.XmlSerializerAttribute;
c.Attributes.Add(new AttributeNode(mb, null));
if (cunit != null) {
cunit.Namespaces[0].Types.Add(c);
}
this.module.Types.Add(c);
Identifier typeId = Identifier.For("type"); // what we are writing to.
Identifier rootName = Identifier.For("rootName"); // what we are writing to.
Identifier rootNamespace = Identifier.For("rootNamespace"); // what we are writing to.
// Constructor
Method constructor = new InstanceInitializer();
constructor.Name = StandardIds.Ctor;
constructor.DeclaringType = c;
constructor.Flags = MethodFlags.Public|MethodFlags.HideBySig|MethodFlags.SpecialName|MethodFlags.RTSpecialName;
constructor.Parameters = new ParameterList();
constructor.Parameters.Add(new Parameter(new AttributeList(), ParameterFlags.In, typeId, SystemTypes.Type, null, null));
constructor.Parameters.Add(new Parameter(new AttributeList(), ParameterFlags.In, rootName, SystemTypes.String, null, null));
constructor.Parameters.Add(new Parameter(new AttributeList(), ParameterFlags.In, rootNamespace, SystemTypes.String, null, null));
constructor.ReturnType = SystemTypes.Void;
c.Members.Add(constructor);
// pass args thru to base XmlSerializer constructor.
Block b = constructor.Body = new Block(new StatementList());
b.Statements.Add(new ExpressionStatement(new MethodCall(new QualifiedIdentifier(new Base(), StandardIds.Ctor),
new ExpressionList(typeId, rootName, rootNamespace), NodeType.Call)));
//AddConsoleWrite(b.Statements, new Literal("Hello!!",SystemTypes.String));
// Serialize(T source, XmlSerializationWriter writer) method
Identifier src = Identifier.For("source"); // object being serialized.
Identifier writer = Identifier.For("writer"); // what we are writing to.
Method serialize = new Method();
serialize.Name = Identifier.For("Serialize");
serialize.DeclaringType = c;
serialize.Flags = MethodFlags.Public|MethodFlags.Static|MethodFlags.HideBySig;
serialize.Parameters = new ParameterList();
serialize.Parameters.Add(new Parameter(new AttributeList(), ParameterFlags.In, src, type, null, null));
serialize.Parameters.Add(new Parameter(new AttributeList(), ParameterFlags.In, writer, Runtime.XmlSerializationWriter, null, null));
serialize.Parameters.Add(new Parameter(new AttributeList(), ParameterFlags.In, rootName, SystemTypes.String, null, null));
serialize.Parameters.Add(new Parameter(new AttributeList(), ParameterFlags.In, rootNamespace, SystemTypes.String, null, null));
serialize.ReturnType = SystemTypes.Void;
c.Members.Add(serialize);
// T Deserialize(XmlReader reader, bool required, out bool result) method
Identifier reader = Identifier.For("reader"); // what we are reading from.
Identifier required = Identifier.For("required"); // whether an object is required or not.
Identifier result = Identifier.For("result"); // whether we found anything.
Method deserialize = new Method();
deserialize.Name = Identifier.For("Deserialize");
deserialize.DeclaringType = c;
deserialize.Flags = MethodFlags.Public|MethodFlags.Static|MethodFlags.HideBySig;
deserialize.Parameters = new ParameterList();
deserialize.Parameters.Add(new Parameter(new AttributeList(), ParameterFlags.In, reader, Runtime.XmlSerializationReader, null, null));
deserialize.Parameters.Add(new Parameter(new AttributeList(), ParameterFlags.In, required, SystemTypes.Boolean, null, null));
deserialize.Parameters.Add(new Parameter(new AttributeList(), ParameterFlags.Out, result, SystemTypes.Boolean.GetReferenceType(), null, null));
deserialize.ReturnType = type;
c.Members.Add(deserialize);
// It is important that we add the serializer to the cache AFTER we create the methods, but
// BEFORE we create the method bodies so that we can handle recurrsive calls to AddCallSerializer which
// happens in recurrsive structures like "class Foo { public Foo f; }". Otherwise we'd get stuck in an
// infinite loop.
serializers[type] = c;
// Body of serialize method.
b = serialize.Body = new Block(new StatementList());
StatementList statements = b.Statements;
if (!AddWriteSimpleType(type, statements, c, writer, src, rootName, rootNamespace)) {
MethodCall call = new MethodCall();
call.Callee = new QualifiedIdentifier(writer,Identifier.For("WriteStartElement"));
call.Operands = new ExpressionList();
call.Operands.Add(rootName);
call.Operands.Add(rootNamespace);
statements.Add(new If(new BinaryExpression(rootName,Literal.Null,NodeType.Ne),
new Block(new StatementList(new ExpressionStatement(call))),null));
Expression source = src;
if (type.Template == SystemTypes.GenericBoxed) {
statements = AddCheckForNull(statements, Duplicate(src, c), type);
type = Checker.GetCollectionElementType(type);
source = CastTo(src, type);//unbox it
}
if (type is TupleType) {
AddWriteTuple(type as TupleType, statements, c, source, writer);
} else if (type is TypeUnion) {
AddWriteChoice(type as TypeUnion, statements, c, source, writer);
} else if (IsStream(type)) {
AddWriteStream(type, statements, c, source, writer);
} else {
SchemaElementDecl sd = SchemaElementDecl.Compile(this.module, type, Checker.GetCollectionElementType(type), this.errorHandler, schemaElementDeclCache);
SchemaValidator validator = validator = sd.CreateValidator(this.errorHandler);
statements = AddCheckForNull(statements, Duplicate(src, c), type);
AddWriteAttributes(statements, c, writer, source, validator);
AddWriteContent(type, statements, c, writer, source, validator);
}
call = new MethodCall();
call.Callee = new QualifiedIdentifier(writer,Identifier.For("WriteEndElement"));
call.Operands = new ExpressionList();
statements.Add(new If(new BinaryExpression(rootName,Literal.Null,NodeType.Ne),
new Block(new StatementList(new ExpressionStatement(call))),null));
}
// body of deserialize method.
b = deserialize.Body = new Block(new StatementList());
statements = b.Statements;
Local target = new Local(Identifier.Empty, type);
if (type.Template == SystemTypes.GenericBoxed){
type = Checker.GetCollectionElementType(type);
}
if (type is TupleType) {
AddReadTuple(b, type as TupleType, statements, reader, target, required, result);
} else if (type is TypeUnion) {
AddReadChoice(b, type as TypeUnion, statements, reader, target, required, result);
} else if (IsStream(type)) {
AddReadStream(b, type, statements, reader, target, result);
} else {
if (type is TypeAlias) {
type = ((TypeAlias)type).AliasedType;
}
// Then we are already positioned on the element to be deserialized.
statements.Add(new AssignmentStatement(required, Literal.True));
if (!AddReadSimpleType(type, statements, reader, target, result, false)) {
if (!type.IsValueType && !type.IsAbstract && type.GetConstructor() != null) {
Construct cons = new Construct(new MemberBinding(null, type), new ExpressionList(), type);
statements.Add(new AssignmentStatement(target, cons));
}
SchemaElementDecl sd = SchemaElementDecl.Compile(this.module, type, Checker.GetCollectionElementType(type), this.errorHandler, schemaElementDeclCache);
SchemaValidator validator = validator = sd.CreateValidator(this.errorHandler);
AddReadAttributes(type, statements, reader, target, validator);
AddReadContent(c, b, type, statements, reader, target, required, result, validator);
}
}
statements.Add(new Return(target));
tempChecker.currentType = saved;
return c;
}
