/// <summary>
/// Enumerates EventDef tokens representing Events of the specified type.
///
/// To enumerate inherited Events, the caller must explicitly walk the inheritance chain.
/// </summary>
/// <param name="typeDefinition"> A ReturnTypeDefinition representing the type whose Events are to be enumerated</param>
/// <returns>the enumerator</returns>
public IEnumerable<Event> EnumerateEvents(TypeDefinition typeDefinition)
{
// Handle of the enumeration.
var enumHandle = 0;
// We will read maximum 10 Events at once which will be stored in this array.
var events = new int[10];
// Number of read Events.
var count = 0;
var hresult = this.import.EnumEvents(ref enumHandle, typeDefinition.Token, events, events.Length, ref count);
if (hresult != 0)
{
Marshal.ThrowExceptionForHR(hresult);
}
// Continue reading Events' while the Events array contains any new Event.
while (count > 0)
{
for (uint eventsIndex = 0; eventsIndex < count; eventsIndex++)
{
yield return this.GetEventProperties(events[eventsIndex]);
}
hresult = this.import.EnumEvents(ref enumHandle, typeDefinition.Token, events, events.Length, ref count);
if (hresult != 0)
{
Marshal.ThrowExceptionForHR(hresult);
}
}
this.import.CloseEnum(enumHandle);
}
public EventMetadataICodeElementAdapter(Event @event, TypeDefinition typeDefinition, IList<TypeDescriptor> genericTypes, MetadataReader reader)
: base(typeDefinition, genericTypes, reader)
{
if (@event == null)
{
throw new ArgumentNullException("event");
}
this.Event = @event;
}
public PropertyMetadataICodeElementAdapter(Property property, TypeDefinition typeDefinition, IList<TypeDescriptor> genericTypes, MetadataReader reader)
: base(typeDefinition, genericTypes, reader)
{
if (property == null)
{
throw new ArgumentNullException("property");
}
this.Property = property;
}
public MethodMetadataICodeElementAdapter(Method method, TypeDefinition typeDefinition, IList<TypeDescriptor> genericTypes, MetadataReader reader)
: base(typeDefinition, genericTypes, reader)
{
if (method == null)
{
throw new ArgumentNullException("method");
}
this.Method = method;
}
public FieldMetadataICodeElementAdapter(Field field, TypeDefinition typeDefinition, IList<TypeDescriptor> genericTypes, MetadataReader reader)
: base(typeDefinition, genericTypes, reader)
{
if (field == null)
{
throw new ArgumentNullException("field");
}
this.Field = field;
}
public TypeDefinitionMetadataICodeElementAdapterBase(TypeDefinition typeDefinition, IList<TypeDescriptor> genericTypes, MetadataReader reader)
: base(reader)
{
if (typeDefinition == null)
{
throw new ArgumentNullException("typeDefinition");
}
this.TypeDefinition = typeDefinition;
this.GenericTypes = genericTypes;
}
private bool BaseIsValueTypeRecurse(TypeDefinition @base)
{
if (@base == null)
{
return false;
}
string fullName = @base.FullName;
if (fullName.Equals("Platform.ValueType") || fullName.Equals("System.Enum"))
{
return true;
}
var baseReference = @base.BaseReference;
if (baseReference != null
&& (baseReference.FullName.Equals("Platform.ValueType")
|| baseReference.FullName.Equals("System.Enum")))
{
return true;
}
return this.BaseIsValueTypeRecurse(@base.Base);
}
public TypeDefinitionMetadataICodeElementAdapter(TypeDefinition typeDefinition, IList<TypeDescriptor> genericTypes, MetadataReader reader)
: base(typeDefinition, genericTypes, reader)
{
}
/// <summary>
/// Enumerates Field tokens representing Fields of the specified type.
///
/// To enumerate inherited Fields, the caller must explicitly walk the inheritance chain.
/// </summary>
/// <param name="typeDefinition"> A ReturnTypeDefinition representing the type whose Fields are to be enumerated</param>
/// <returns>the enumerator</returns>
public IEnumerable<Field> EnumerateFields(TypeDefinition typeDefinition)
{
// Handle of the enumeration.
var enumHandle = 0;
// We will read maximum 10 Fields at once which will be stored in this array.
var fields = new int[10];
// Number of read Fields.
var count = 0;
var hresult = this.import.EnumFields(ref enumHandle, typeDefinition.Token, fields, fields.Length, ref count);
if (hresult != 0)
{
Marshal.ThrowExceptionForHR(hresult);
}
// Continue reading Fields' while the Fields array contains any new Field.
while (count > 0)
{
for (uint fieldsIndex = 0; fieldsIndex < count; fieldsIndex++)
{
yield return this.GetFieldProperties(fields[fieldsIndex]);
}
hresult = this.import.EnumFields(ref enumHandle, typeDefinition.Token, fields, fields.Length, ref count);
if (hresult != 0)
{
Marshal.ThrowExceptionForHR(hresult);
}
}
this.import.CloseEnum(enumHandle);
}
/// <summary>
/// Enumerates PropertyDef tokens representing Properties of the specified type.
///
/// To enumerate inherited Properties, the caller must explicitly walk the inheritance chain.
/// </summary>
/// <param name="typeDefinition"> A ReturnTypeDefinition representing the type whose Properties are to be enumerated</param>
/// <returns>the enumerator</returns>
public IEnumerable<Property> EnumerateProperties(TypeDefinition typeDefinition)
{
// Handle of the enumeration.
var enumHandle = 0;
// We will read maximum 10 Properties at once which will be stored in this array.
var properties = new int[10];
// Number of read Properties.
var count = 0;
var hresult = this.import.EnumProperties(ref enumHandle, typeDefinition.Token, properties, properties.Length, ref count);
if (hresult != 0)
{
Marshal.ThrowExceptionForHR(hresult);
}
// Continue reading Properties' while the Properties array contains any new Property.
while (count > 0)
{
for (uint propertiesIndex = 0; propertiesIndex < count; propertiesIndex++)
{
yield return this.GetPropertyProperties(properties[propertiesIndex]);
}
hresult = this.import.EnumProperties(ref enumHandle, typeDefinition.Token, properties, properties.Length, ref count);
if (hresult != 0)
{
Marshal.ThrowExceptionForHR(hresult);
}
}
this.import.CloseEnum(enumHandle);
}
/// <summary>
/// Enumerates MemberDef tokens representing members of the specified type.
///
/// To enumerate inherited members, the caller must explicitly walk the inheritance chain.
/// </summary>
/// <param name="typeDefinition"> A ReturnTypeDefinition representing the type whose members are to be enumerated</param>
/// <returns>the enumerator</returns>
public IEnumerable<Member> EnumerateMembers(TypeDefinition typeDefinition)
{
// Handle of the enumeration.
var enumHandle = 0;
// We will read maximum 10 Members at once which will be stored in this array.
var members = new int[10];
// Number of read Members.
var count = 0;
var hresult = this.import.EnumMembers(ref enumHandle, typeDefinition.Token, members, members.Length, ref count);
if (hresult != 0)
{
Marshal.ThrowExceptionForHR(hresult);
}
// Continue reading Members' while the members array contains any new Member.
while (count > 0)
{
for (uint membersIndex = 0; membersIndex < count; membersIndex++)
{
yield return this.GetMemberProperties(members[membersIndex]);
}
hresult = this.import.EnumMembers(ref enumHandle, typeDefinition.Token, members, members.Length, ref count);
if (hresult != 0)
{
Marshal.ThrowExceptionForHR(hresult);
}
}
this.import.CloseEnum(enumHandle);
}
public TypeDefinition GetTypeDefinitionProperties(int token)
{
object metadataObject = null;
if (this.metadataObjectsCache.TryGetValue(token, out metadataObject))
{
return (TypeDefinition)metadataObject;
}
// The TypeDef's name will be stored in this array. The 1024 is a "magical number", seems like a type's name can be maximum this long. The corhlpr.h also defines a suspicious constant like this: #define MAX_CLASSNAME_LENGTH 1024
var typeName = new char[1024];
// Number of how many characters were filled in the typeName array.
var nameLength = 0;
// TypeDef's flags.
var typeDefFlags = 0;
// If the TypeDef is a derived type then the base type's token.
var baseTypeToken = 0;
// Get the TypeDef's properties.
var hresult = this.import.GetTypeDefProps(token, typeName, typeName.Length, ref nameLength, ref typeDefFlags, ref baseTypeToken);
if (hresult != 0)
{
Marshal.ThrowExceptionForHR(hresult);
}
// supress names "" & "\0";
if (nameLength <= 1)
{
// return null for this, we do not need to know about empty base
return null;
}
// Get the TypeDef's name.
var fullTypeName = new string(typeName, 0, nameLength - 1);
var corTypeAttr = (CorTypeAttr)typeDefFlags;
var typeDefProp = new TypeDefinition() { Token = token, FullName = fullTypeName, Type = corTypeAttr };
this.metadataObjectsCache[token] = typeDefProp;
if (baseTypeToken > 0)
{
if (baseTypeToken.Is(CorTokenType.TypeDef))
{
typeDefProp.Base = this.GetTypeDefinitionProperties(baseTypeToken);
}
else if (baseTypeToken.Is(CorTokenType.TypeRef))
{
var typeRef = this.GetTypeReferenceProperties(baseTypeToken);
typeDefProp.BaseReference = typeRef;
typeDefProp.Base = this.GetTypeDefByTypeRef(typeRef);
}
else
{
throw new NotImplementedException();
}
}
typeDefProp.Interfaces = this.EnumerateInterfaceImplementations(token).ToArray();
return typeDefProp;
}
