internal JsonClassInfo(Type type, JsonSerializerOptions options)
{
Type = type;
ClassType = GetClassType(type, options);
CreateObject = options.ClassMaterializerStrategy.CreateConstructor(type);
// Ignore properties on enumerable.
switch (ClassType)
{
case ClassType.Object:
{
var propertyNames = new HashSet <string>(StringComparer.Ordinal);
foreach (PropertyInfo propertyInfo in type.GetProperties(BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic))
{
// Ignore indexers
if (propertyInfo.GetIndexParameters().Length > 0)
{
continue;
}
// For now we only support public getters\setters
if (propertyInfo.GetMethod?.IsPublic == true ||
propertyInfo.SetMethod?.IsPublic == true)
{
JsonPropertyInfo jsonPropertyInfo = AddProperty(propertyInfo.PropertyType, propertyInfo, type, options);
Debug.Assert(jsonPropertyInfo.NameUsedToCompareAsString != null);
// If the JsonPropertyNameAttribute or naming policy results in collisions, throw an exception.
if (!propertyNames.Add(jsonPropertyInfo.NameUsedToCompareAsString))
{
ThrowHelper.ThrowInvalidOperationException_SerializerPropertyNameConflict(this, jsonPropertyInfo);
}
jsonPropertyInfo.ClearUnusedValuesAfterAdd();
}
}
DetermineExtensionDataProperty();
}
break;
case ClassType.Enumerable:
case ClassType.Dictionary:
{
// Add a single property that maps to the class type so we can have policies applied.
JsonPropertyInfo policyProperty = AddPolicyProperty(type, options);
// Use the type from the property policy to get any late-bound concrete types (from an interface like IDictionary).
CreateObject = options.ClassMaterializerStrategy.CreateConstructor(policyProperty.RuntimePropertyType);
// Create a ClassInfo that maps to the element type which is used for (de)serialization and policies.
Type elementType = GetElementType(type, parentType: null, memberInfo: null, options: options);
ElementClassInfo = options.GetOrAddClass(elementType);
}
break;
case ClassType.IDictionaryConstructible:
{
// Add a single property that maps to the class type so we can have policies applied.
AddPolicyProperty(type, options);
Type elementType = GetElementType(type, parentType: null, memberInfo: null, options: options);
CreateObject = options.ClassMaterializerStrategy.CreateConstructor(
typeof(Dictionary <,>).MakeGenericType(typeof(string), elementType));
// Create a ClassInfo that maps to the element type which is used for (de)serialization and policies.
ElementClassInfo = options.GetOrAddClass(elementType);
}
break;
case ClassType.Value:
case ClassType.Unknown:
// Add a single property that maps to the class type so we can have policies applied.
AddPolicyProperty(type, options);
break;
default:
Debug.Fail($"Unexpected class type: {ClassType}");
break;
}
}
internal JsonClassInfo(Type type, JsonSerializerOptions options)
{
Type = type;
ClassType = GetClassType(type);
CreateObject = options.ClassMaterializerStrategy.CreateConstructor(type);
// Ignore properties on enumerable.
switch (ClassType)
{
case ClassType.Object:
{
var propertyNames = new HashSet <string>(StringComparer.Ordinal);
foreach (PropertyInfo propertyInfo in type.GetProperties(BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic))
{
// Ignore indexers
if (propertyInfo.GetIndexParameters().Length > 0)
{
continue;
}
// For now we only support public getters\setters
if (propertyInfo.GetMethod?.IsPublic == true ||
propertyInfo.SetMethod?.IsPublic == true)
{
JsonPropertyInfo jsonPropertyInfo = AddProperty(propertyInfo.PropertyType, propertyInfo, type, options);
Debug.Assert(jsonPropertyInfo.NameUsedToCompareAsString != null);
// If the JsonPropertyNameAttribute or naming policy results in collisions, throw an exception.
if (!propertyNames.Add(jsonPropertyInfo.NameUsedToCompareAsString))
{
ThrowHelper.ThrowInvalidOperationException_SerializerPropertyNameConflict(this, jsonPropertyInfo);
}
jsonPropertyInfo.ClearUnusedValuesAfterAdd();
}
}
DetermineExtensionDataProperty();
}
break;
case ClassType.Enumerable:
case ClassType.Dictionary:
{
// Add a single property that maps to the class type so we can have policies applied.
JsonPropertyInfo policyProperty = AddPolicyProperty(type, options);
// Use the type from the property policy to get any late-bound concrete types (from an interface like IDictionary).
CreateObject = options.ClassMaterializerStrategy.CreateConstructor(policyProperty.RuntimePropertyType);
// Create a ClassInfo that maps to the element type which is used for (de)serialization and policies.
Type elementType = GetElementType(type, parentType: null, memberInfo: null);
ElementClassInfo = options.GetOrAddClass(elementType);
}
break;
case ClassType.IDictionaryConstructible:
{
// Add a single property that maps to the class type so we can have policies applied.
AddPolicyProperty(type, options);
Type elementType = GetElementType(type, parentType: null, memberInfo: null);
CreateObject = options.ClassMaterializerStrategy.CreateConstructor(
typeof(Dictionary <,>).MakeGenericType(typeof(string), elementType));
// Create a ClassInfo that maps to the element type which is used for (de)serialization and policies.
ElementClassInfo = options.GetOrAddClass(elementType);
}
break;
// TODO: Utilize converter mechanism to handle (de)serialization of KeyValuePair
// when it goes through: https://github.com/dotnet/corefx/issues/36639.
case ClassType.KeyValuePair:
{
// For deserialization, we treat it as ClassType.IDictionaryConstructible so we can parse it like a dictionary
// before using converter-like logic to create a KeyValuePair instance.
// Add a single property that maps to the class type so we can have policies applied.
AddPolicyProperty(type, options);
Type elementType = GetElementType(type, parentType: null, memberInfo: null);
// Make this Dictionary<string, object> to accomodate input of form {"Key": "MyKey", "Value": 1}.
CreateObject = options.ClassMaterializerStrategy.CreateConstructor(typeof(Dictionary <string, object>));
// Create a ClassInfo that maps to the element type which is used for deserialization and policies.
ElementClassInfo = options.GetOrAddClass(elementType);
// For serialization, we treat it like ClassType.Object to utilize the public getters.
// Add Key property
PropertyInfo propertyInfo = type.GetProperty("Key", BindingFlags.Public | BindingFlags.Instance);
JsonPropertyInfo jsonPropertyInfo = AddProperty(propertyInfo.PropertyType, propertyInfo, type, options);
Debug.Assert(jsonPropertyInfo.NameUsedToCompareAsString != null);
jsonPropertyInfo.ClearUnusedValuesAfterAdd();
// Add Value property.
propertyInfo = type.GetProperty("Value", BindingFlags.Public | BindingFlags.Instance);
jsonPropertyInfo = AddProperty(propertyInfo.PropertyType, propertyInfo, type, options);
Debug.Assert(jsonPropertyInfo.NameUsedToCompareAsString != null);
jsonPropertyInfo.ClearUnusedValuesAfterAdd();
}
break;
case ClassType.Value:
case ClassType.Unknown:
// Add a single property that maps to the class type so we can have policies applied.
AddPolicyProperty(type, options);
break;
default:
Debug.Fail($"Unexpected class type: {ClassType}");
break;
}
}