private static void TestEnumerableListPatterns(TypeModel model, BasicList candidates, Type iType)
{
#if WINRT
TypeInfo iTypeInfo = iType.GetTypeInfo();
if (iTypeInfo.IsGenericType)
{
Type typeDef = iTypeInfo.GetGenericTypeDefinition();
if (typeDef == typeof(System.Collections.Generic.ICollection <>) || typeDef.GetTypeInfo().FullName == "System.Collections.Concurrent.IProducerConsumerCollection`1")
{
Type[] iTypeArgs = iTypeInfo.GenericTypeArguments;
if (!candidates.Contains(iTypeArgs[0]))
{
candidates.Add(iTypeArgs[0]);
}
}
}
#elif !NO_GENERICS
if (iType.IsGenericType)
{
Type typeDef = iType.GetGenericTypeDefinition();
if (typeDef == model.MapType(typeof(System.Collections.Generic.IEnumerable <>)) ||
typeDef == model.MapType(typeof(System.Collections.Generic.ICollection <>)) ||
typeDef.FullName == "System.Collections.Concurrent.IProducerConsumerCollection`1")
{
Type[] iTypeArgs = iType.GetGenericArguments();
if (!candidates.Contains(iTypeArgs[0]))
{
candidates.Add(iTypeArgs[0]);
}
}
}
#endif
}
internal static BasicList GetContiguousGroups(int[] keys, object[] values)
{
if (keys == null)
{
throw new ArgumentNullException(nameof(keys));
}
if (values == null)
{
throw new ArgumentNullException(nameof(values));
}
if (values.Length < keys.Length)
{
throw new ArgumentException("Not all keys are covered by values", nameof(values));
}
BasicList outer = new BasicList();
Group group = null;
for (int i = 0; i < keys.Length; i++)
{
if (i == 0 || keys[i] != keys[i - 1])
{
group = null;
}
if (group == null)
{
group = new Group(keys[i]);
outer.Add(group);
}
group.Items.Add(values[i]);
}
return(outer);
}
void CscadeDependents_Member(BasicList list, Type type)
{
WireType defaultWireType;
IProtoSerializer coreSerializer = this.ValueSerializerBuilder.TryGetSimpleCoreSerializer(BinaryDataFormat.Default, type, out defaultWireType);
if (coreSerializer == null)
{
int index = FindOrAddAuto(type, false, false, false);
if (index >= 0)
{
var tmp = ((MetaType)_types[index]).GetSurrogateOrBaseOrSelf(false);
if (!list.Contains(tmp))
{ // could perhaps also implement as a queue, but this should work OK for sane models
list.Add(tmp);
CascadeDependents(list, tmp);
}
}
}
}
private void Add(ValueMember member)
{
int opaqueToken = 0;
try
{
_model.TakeLock(ref opaqueToken);
ThrowIfFrozen();
if (!IsFieldFree(member.FieldNumber) && !Helpers.IsEnum(Type))
{
throw new ArgumentException(string.Format("FieldNumber {0} for {1} was already taken", member.FieldNumber, member), nameof(member));
}
_fields.Add(member);
member.FinalizingSettings += (s, a) => FinalizingMemberSettings?.Invoke(this, a);
}
finally
{
_model.ReleaseLock(opaqueToken);
}
}
internal static Type GetListItemType(TypeModel model, Type listType)
{
Helpers.DebugAssert(listType != null);
#if WINRT
TypeInfo listTypeInfo = listType.GetTypeInfo();
if (listType == typeof(string) || listType.IsArray ||
!typeof(IEnumerable).GetTypeInfo().IsAssignableFrom(listTypeInfo))
{
return(null);
}
#else
if (listType == model.MapType(typeof(string)) || listType.IsArray ||
!model.MapType(typeof(IEnumerable)).IsAssignableFrom(listType))
{
return(null);
}
#endif
BasicList candidates = new BasicList();
#if WINRT
foreach (MethodInfo method in listType.GetRuntimeMethods())
#else
foreach (MethodInfo method in listType.GetMethods())
#endif
{
if (method.IsStatic || method.Name != "Add")
{
continue;
}
ParameterInfo[] parameters = method.GetParameters();
Type paramType;
if (parameters.Length == 1 && !candidates.Contains(paramType = parameters[0].ParameterType))
{
candidates.Add(paramType);
}
}
string name = listType.Name;
bool isQueueStack = name != null && (name.IndexOf("Queue", System.StringComparison.Ordinal) >= 0 || name.IndexOf("Stack", System.StringComparison.Ordinal) >= 0);
#if !NO_GENERICS
if (!isQueueStack)
{
TestEnumerableListPatterns(model, candidates, listType);
#if WINRT
foreach (Type iType in listTypeInfo.ImplementedInterfaces)
{
TestEnumerableListPatterns(model, candidates, iType);
}
#else
foreach (Type iType in listType.GetInterfaces())
{
TestEnumerableListPatterns(model, candidates, iType);
}
#endif
}
#endif
#if WINRT
// more convenient GetProperty overload not supported on all platforms
foreach (PropertyInfo indexer in listType.GetRuntimeProperties())
{
if (indexer.Name != "Item" || candidates.Contains(indexer.PropertyType))
{
continue;
}
ParameterInfo[] args = indexer.GetIndexParameters();
if (args.Length != 1 || args[0].ParameterType != typeof(int))
{
continue;
}
MethodInfo getter = indexer.GetMethod;
if (getter == null || getter.IsStatic)
{
continue;
}
candidates.Add(indexer.PropertyType);
}
#else
// more convenient GetProperty overload not supported on all platforms
foreach (PropertyInfo indexer in listType.GetProperties(BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic))
{
if (indexer.Name != "Item" || candidates.Contains(indexer.PropertyType))
{
continue;
}
ParameterInfo[] args = indexer.GetIndexParameters();
if (args.Length != 1 || args[0].ParameterType != model.MapType(typeof(int)))
{
continue;
}
candidates.Add(indexer.PropertyType);
}
#endif
switch (candidates.Count)
{
case 0:
return(null);
case 1:
return((Type)candidates[0]);
case 2:
if (CheckDictionaryAccessors(model, (Type)candidates[0], (Type)candidates[1]))
{
return((Type)candidates[0]);
}
if (CheckDictionaryAccessors(model, (Type)candidates[1], (Type)candidates[0]))
{
return((Type)candidates[1]);
}
break;
}
return(null);
}
private bool TryDeserializeList(TypeModel model, ProtoReader reader, BinaryDataFormat format, int tag, Type listType, Type itemType, bool isRoot, ref object value)
{
bool isList;
MethodInfo addMethod = TypeModel.ResolveListAdd(model, listType, itemType, out isList);
if (addMethod == null)
{
throw new NotSupportedException("Unknown list variant: " + listType.FullName);
}
bool found = false;
object nextItem = null;
IList list = value as IList;
object[] args = isList ? null : new object[1];
BasicList arraySurrogate = listType.IsArray ? new BasicList() : null;
while (TryDeserializeAuxiliaryType(reader, format, tag, itemType, ref nextItem, true, true, true, true, isRoot))
{
found = true;
if (value == null && arraySurrogate == null)
{
value = CreateListInstance(listType, itemType);
if (value != null)
{
ProtoReader.NoteObject(value, reader);
}
list = value as IList;
}
if (list != null)
{
list.Add(nextItem);
}
else if (arraySurrogate != null)
{
arraySurrogate.Add(nextItem);
}
else
{
args[0] = nextItem;
addMethod.Invoke(value, args);
}
nextItem = null;
}
if (arraySurrogate != null)
{
Array newArray;
if (value != null)
{
if (arraySurrogate.Count == 0)
{ // we'll stay with what we had, thanks
}
else
{
Array existing = (Array)value;
newArray = Array.CreateInstance(itemType, existing.Length + arraySurrogate.Count);
Array.Copy(existing, newArray, existing.Length);
arraySurrogate.CopyTo(newArray, existing.Length);
value = newArray;
}
}
else
{
newArray = Array.CreateInstance(itemType, arraySurrogate.Count);
arraySurrogate.CopyTo(newArray, 0);
value = newArray;
ProtoReader.NoteObject(value, reader);
}
}
return(found);
}
private void CascadeDependents(BasicList list, MetaType metaType)
{
MetaType tmp;
metaType.FinalizeSettingsValue();
if (metaType.IsList)
{
Type itemType = TypeModel.GetListItemType(this, metaType.Type);
WireType defaultWireType;
IProtoSerializer coreSerializer = this.ValueSerializerBuilder.TryGetSimpleCoreSerializer(BinaryDataFormat.Default, itemType, out defaultWireType);
if (coreSerializer == null)
{
int index = FindOrAddAuto(itemType, false, false, false);
if (index >= 0)
{
tmp = ((MetaType)_types[index]).GetSurrogateOrBaseOrSelf(false);
if (!list.Contains(tmp))
{ // could perhaps also implement as a queue, but this should work OK for sane models
list.Add(tmp);
CascadeDependents(list, tmp);
}
}
}
}
else
{
if (metaType.GetFinalSettingsCopy().IsAutoTuple)
{
MemberInfo[] mapping;
if (MetaType.ResolveTupleConstructor(metaType.Type, out mapping) != null)
{
for (int i = 0; i < mapping.Length; i++)
{
CscadeDependents_Member(list, (mapping[i] as PropertyInfo)?.PropertyType ?? (mapping[i] as FieldInfo)?.FieldType);
}
}
}
else
{
foreach (ValueMember member in metaType.Fields)
{
member.Serializer.GetHashCode();
var s = member.GetFinalSettingsCopy(0);
Type type = s.Collection.ItemType ?? member.MemberType;
var fieldMetaType = FindWithoutAdd(type);
if (fieldMetaType != null)
{
type = fieldMetaType.GetSurrogateOrSelf().Type;
}
CscadeDependents_Member(list, type);
}
}
if (metaType.HasSubtypes)
{
foreach (SubType subType in metaType.GetSubtypes())
{
tmp = subType.DerivedType.GetSurrogateOrSelf(); // note: exclude base-types!
if (!list.Contains(tmp))
{
list.Add(tmp);
CascadeDependents(list, tmp);
}
}
}
tmp = metaType.BaseType;
tmp = tmp?.GetSurrogateOrSelf(); // note: already walking base-types; exclude base
if (tmp != null && !list.Contains(tmp))
{
list.Add(tmp);
CascadeDependents(list, tmp);
}
}
}
/// <summary>
/// Suggest a .proto definition for the given type
/// </summary>
/// <param name="type">The type to generate a .proto definition for, or <c>null</c> to generate a .proto that represents the entire model</param>
/// <returns>The .proto definition as a string</returns>
public override string GetSchema(Type type)
{
BasicList requiredTypes = new BasicList();
MetaType primaryType = null;
bool isInbuiltType = false;
if (type == null)
{ // generate for the entire model
for (int i = _serviceTypesCount; i < _types.Count; i++)
{
MetaType meta = (MetaType)_types[i];
MetaType tmp = meta.GetSurrogateOrBaseOrSelf(false);
if (!requiredTypes.Contains(tmp))
{
// ^^^ note that the type might have been added as a descendent
requiredTypes.Add(tmp);
CascadeDependents(requiredTypes, tmp);
}
}
}
else
{
Type tmp = Helpers.GetNullableUnderlyingType(type);
if (tmp != null)
{
type = tmp;
}
WireType defaultWireType;
isInbuiltType = (this.ValueSerializerBuilder.TryGetSimpleCoreSerializer(BinaryDataFormat.Default, type, out defaultWireType) != null);
if (!isInbuiltType)
{
//Agenerate just relative to the supplied type
int index = FindOrAddAuto(type, false, false, false);
if (index < 0)
{
throw new ArgumentException("The type specified is not a contract-type", nameof(type));
}
// get the required types
primaryType = ((MetaType)_types[index]).GetSurrogateOrBaseOrSelf(false);
requiredTypes.Add(primaryType);
CascadeDependents(requiredTypes, primaryType);
}
}
// use the provided type's namespace for the "package"
StringBuilder headerBuilder = new StringBuilder();
string package = null;
if (!isInbuiltType)
{
IEnumerable typesForNamespace = primaryType == null ? (IEnumerable)MetaTypes : requiredTypes;
foreach (MetaType meta in typesForNamespace)
{
meta.FinalizeSettingsValue();
if (meta.IsList)
{
continue;
}
string tmp = meta.Type.Namespace;
if (!Helpers.IsNullOrEmpty(tmp))
{
if (tmp.StartsWith("System.", StringComparison.Ordinal))
{
continue;
}
if (package == null)
{ // haven't seen any suggestions yet
package = tmp;
}
else if (package == tmp)
{ // that's fine; a repeat of the one we already saw
}
else
{ // something else; have confliucting suggestions; abort
package = null;
break;
}
}
}
}
if (!Helpers.IsNullOrEmpty(package))
{
headerBuilder.Append("package ").Append(package).Append(';');
Helpers.AppendLine(headerBuilder);
}
bool requiresBclImport = false;
StringBuilder bodyBuilder = new StringBuilder();
// sort them by schema-name
MetaType[] metaTypesArr = new MetaType[requiredTypes.Count];
requiredTypes.CopyTo(metaTypesArr, 0);
Array.Sort(metaTypesArr, MetaType.Comparer.Default);
// write the messages
if (isInbuiltType)
{
Helpers.AppendLine(bodyBuilder).Append("message ").Append(type.Name).Append(" {");
MetaType.NewLine(bodyBuilder, 1).Append("optional ").Append(GetSchemaTypeName(type, BinaryDataFormat.Default, false, false, ref requiresBclImport))
.Append(" value = 1;");
Helpers.AppendLine(bodyBuilder).Append('}');
}
else
{
for (int i = 0; i < metaTypesArr.Length; i++)
{
MetaType tmp = metaTypesArr[i];
if (tmp.IsList && tmp != primaryType)
{
continue;
}
tmp.WriteSchema(bodyBuilder, 0, ref requiresBclImport);
}
}
if (requiresBclImport)
{
headerBuilder.Append("import \"bcl.proto\"; // schema for protobuf-net's handling of core .NET types");
Helpers.AppendLine(headerBuilder);
}
return(Helpers.AppendLine(headerBuilder.Append(bodyBuilder)).ToString());
}
private void WriteGetKeyImpl(TypeBuilder type, bool hasInheritance, SerializerPair[] methodPairs, Compiler.CompilerContext.ILVersion ilVersion, string assemblyName, out ILGenerator il, out int knownTypesCategory, out FieldBuilder knownTypes, out Type knownTypesLookupType)
{
var genInfo = Override(type, "GetKeyImpl");
il = genInfo.GetILGenerator();
Compiler.CompilerContext ctx = new Compiler.CompilerContext(genInfo, false, false, methodPairs, this, ilVersion, assemblyName, MapType(typeof(System.Type), true));
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(ctx.DefineLabel());
lastKey = methodPairs[i].BaseKey;
}
}
Compiler.CodeLabel[] subtypeLabels = new Compiler.CodeLabel[getKeyLabels.Count];
getKeyLabels.CopyTo(subtypeLabels, 0);
ctx.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;
}
}
ctx.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();
}
}
private void WriteAssemblyAttributes(CompilerOptions options, string assemblyName, AssemblyBuilder asm)
{
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.IndexOfString(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);
}
}
}
}
/// <summary>
/// Adds a known sub-type to the inheritance model
/// </summary>
public MetaType AddSubType(int fieldNumber, Type derivedType)
{
if (derivedType == null)
{
throw new ArgumentNullException(nameof(derivedType));
}
if (fieldNumber < 1)
{
throw new ArgumentOutOfRangeException(nameof(fieldNumber));
}
if (Type.IsArray)
{
throw new ArgumentException("An array has inbuilt behaviour and cannot be subclassed");
}
if (derivedType.IsArray)
{
throw new ArgumentException("An array has inbuilt behaviour and cannot be as used as a subclass");
}
#if WINRT
if (!CanHaveSubType(_typeInfo))
{
#else
if (!CanHaveSubType(Type))
{
#endif
throw new InvalidOperationException("Sub-types can only be added to non-sealed classes");
}
if (!IsValidSubType(derivedType))
{
throw new ArgumentException(derivedType.Name + " is not a valid sub-type of " + Type.Name, nameof(derivedType));
}
if (_subTypesSimple != null && _subTypesSimple.Contains(derivedType))
{
return(this); // already exists
}
if (!IsFieldFree(fieldNumber))
{
throw new ArgumentException(string.Format("FieldNumber {0} was already taken in type {1}, can't add sub-type {2}", fieldNumber, Type.Name, derivedType.Name), nameof(fieldNumber));
}
if (_subTypesSimple == null)
{
_subTypesSimple = new BasicList();
}
_subTypesSimple.Add(derivedType);
MetaType derivedMeta = _model[derivedType];
ThrowIfFrozen();
derivedMeta.ThrowIfFrozen();
SubType subType = new SubType(fieldNumber, derivedMeta);
ThrowIfFrozen();
derivedMeta.SetBaseType(this); // includes ThrowIfFrozen
if (_subTypes == null)
{
_subTypes = new BasicList();
}
_subTypes.Add(subType);
return(this);
}
public static ConstructorInfo ResolveTupleConstructor(Type type, out MemberInfo[] mappedMembers)
{
mappedMembers = null;
if (type == null)
{
throw new ArgumentNullException(nameof(type));
}
#if WINRT
TypeInfo typeInfo = type.GetTypeInfo();
if (typeInfo.IsAbstract)
{
return(null); // as if!
}
ConstructorInfo[] ctors = Helpers.GetConstructors(typeInfo, false);
#else
if (type.IsAbstract)
{
return(null); // as if!
}
ConstructorInfo[] ctors = Helpers.GetConstructors(type, false);
#endif
// need to have an interesting constructor to bother even checking this stuff
if (ctors.Length == 0 || (ctors.Length == 1 && ctors[0].GetParameters().Length == 0))
{
return(null);
}
MemberInfo[] fieldsPropsUnfiltered = Helpers.GetInstanceFieldsAndProperties(type, true);
BasicList memberList = new BasicList();
for (int i = 0; i < fieldsPropsUnfiltered.Length; i++)
{
PropertyInfo prop = fieldsPropsUnfiltered[i] as PropertyInfo;
if (prop != null)
{
if (!prop.CanRead)
{
return(null); // no use if can't read
}
if (prop.CanWrite && Helpers.GetSetMethod(prop, false, false) != null)
{
return(null); // don't allow a public set (need to allow non-public to handle Mono's KeyValuePair<,>)
}
memberList.Add(prop);
}
else
{
FieldInfo field = fieldsPropsUnfiltered[i] as FieldInfo;
if (field != null)
{
if (!field.IsInitOnly)
{
return(null); // all public fields must be readonly to be counted a tuple
}
memberList.Add(field);
}
}
}
if (memberList.Count == 0)
{
return(null);
}
MemberInfo[] members = new MemberInfo[memberList.Count];
memberList.CopyTo(members, 0);
int[] mapping = new int[members.Length];
int found = 0;
ConstructorInfo result = null;
mappedMembers = new MemberInfo[mapping.Length];
for (int i = 0; i < ctors.Length; i++)
{
ParameterInfo[] parameters = ctors[i].GetParameters();
if (parameters.Length != members.Length)
{
continue;
}
// reset the mappings to test
for (int j = 0; j < mapping.Length; j++)
{
mapping[j] = -1;
}
for (int j = 0; j < parameters.Length; j++)
{
for (int k = 0; k < members.Length; k++)
{
if (string.Compare(parameters[j].Name, members[k].Name, StringComparison.OrdinalIgnoreCase) != 0)
{
continue;
}
Type memberType = Helpers.GetMemberType(members[k]);
if (memberType != parameters[j].ParameterType)
{
continue;
}
mapping[j] = k;
}
}
// did we map all?
bool notMapped = false;
for (int j = 0; j < mapping.Length; j++)
{
if (mapping[j] < 0)
{
notMapped = true;
break;
}
mappedMembers[j] = members[mapping[j]];
}
if (notMapped)
{
continue;
}
found++;
result = ctors[i];
}
return(found == 1 ? result : null);
}