public Error GetFields(ReferenceTypeId referenceType, out DeclaredFieldData[] fields)
{
fields = null;
JniEnvironment nativeEnvironment;
JvmtiEnvironment environment;
jvmtiError error = GetEnvironment(out environment, out nativeEnvironment);
if (error != jvmtiError.None)
return GetStandardError(error);
FieldId[] fieldIds;
error = environment.GetClassFields(nativeEnvironment, referenceType, out fieldIds);
if (error != jvmtiError.None)
return GetStandardError(error);
using (var classHandle = VirtualMachine.GetLocalReferenceForClass(nativeEnvironment, referenceType))
{
if (!classHandle.IsAlive)
return Error.InvalidClass;
List<DeclaredFieldData> fieldsList = new List<DeclaredFieldData>();
foreach (var fieldId in fieldIds)
{
string name;
string signature;
string genericSignature;
error = environment.GetFieldName(classHandle.Value, fieldId, out name, out signature, out genericSignature);
if (error != jvmtiError.None)
return GetStandardError(error);
JvmAccessModifiers modifiers;
error = environment.GetFieldModifiers(classHandle.Value, fieldId, out modifiers);
fieldsList.Add(new DeclaredFieldData(fieldId, name, signature, genericSignature, (AccessModifiers)modifiers));
}
fields = fieldsList.ToArray();
return Error.None;
}
}
public Error GetFields(out DeclaredFieldData[] fields, ReferenceTypeId referenceType)
{
byte[] packet = new byte[HeaderSize + ReferenceTypeIdSize];
int id = GetMessageId();
SerializeHeader(packet, id, ReferenceTypeCommand.FieldsWithGeneric);
WriteReferenceTypeId(packet, HeaderSize, referenceType);
byte[] response = SendPacket(id, packet);
Error errorCode = ReadErrorCode(response);
if (errorCode != Error.None)
{
fields = null;
return errorCode;
}
int offset = HeaderSize;
int fieldCount = ReadInt32(response, ref offset);
fields = new DeclaredFieldData[fieldCount];
for (int i = 0; i < fieldCount; i++)
{
FieldId fieldId = ReadFieldId(response, ref offset);
string name = ReadString(response, ref offset);
string signature = ReadString(response, ref offset);
string genericSignature = ReadString(response, ref offset);
AccessModifiers modifiers = (AccessModifiers)ReadInt32(response, ref offset);
fields[i] = new DeclaredFieldData(fieldId, name, signature, genericSignature, modifiers);
}
return Error.None;
}
internal Field GetMirrorOf(ReferenceType declaringType, DeclaredFieldData fieldData)
{
lock (_fields)
{
List<Field> fields;
if (!_fields.TryGetValue(declaringType.ReferenceTypeId, out fields))
{
fields = new List<Field>();
_fields[declaringType.ReferenceTypeId] = fields;
}
Field field = fields.SingleOrDefault(i => i.FieldId == fieldData.FieldId);
if (field == null)
{
field = new Field(this, declaringType, fieldData.Name, fieldData.Signature, fieldData.GenericSignature, (AccessModifiers)fieldData.Modifiers, fieldData.FieldId);
fields.Add(field);
}
return field;
}
}