public int GetMemberIndex(IMemberReference reference)
{
int classIndex = GetClassIndex(reference.DeclaringClass);
int nameAndTypeIndex = GetNameAndTypeIndex(reference.Name, reference.Descriptor);
MemberRefInfo memberRefInfo;
switch (reference)
{
case IField _:
memberRefInfo = new FieldRefInfo((ushort)classIndex, (ushort)nameAndTypeIndex);
break;
case IMethod _:
memberRefInfo = new MethodRefInfo((ushort)classIndex, (ushort)nameAndTypeIndex);
break;
default:
throw new NotSupportedException();
}
if (!_memberRefInfos.TryGetValue(memberRefInfo, out int index))
{
index = AddConstant(memberRefInfo);
_memberRefInfos.Add(memberRefInfo, index);
}
return(index);
}
/// <summary>
/// Reads a single method reference at the current position of the provided reader.
/// </summary>
/// <param name="reader">The reader to use.</param>
/// <returns>The method reference that was read.</returns>
public new static MethodRefInfo FromReader(IBigEndianReader reader)
{
var info = new MethodRefInfo
{
StartOffset = reader.Position - 1
};
info.ReadRemainingFields(reader);
return(info);
}
internal MethodReference(JavaClassImage classImage, MethodRefInfo methodRefInfo)
{
_name = new LazyValue <string>(() =>
{
var constantInfo = classImage.ClassFile.ConstantPool.ResolveConstant(methodRefInfo.NameAndTypeIndex);
return(constantInfo is NameAndTypeInfo nameAndTypeInfo
? classImage.ClassFile.ConstantPool.ResolveString(nameAndTypeInfo.NameIndex) ??
$"<<<INVALID({nameAndTypeInfo.NameIndex})>>>"
: $"<<<INVALID({methodRefInfo.NameAndTypeIndex})>>>");
});
_descriptor = new LazyValue <MethodDescriptor>(() =>
{
var constantInfo = classImage.ClassFile.ConstantPool.ResolveConstant(methodRefInfo.NameAndTypeIndex);
return(constantInfo is NameAndTypeInfo nameAndTypeInfo
? classImage.ResolveMethodDescriptor(nameAndTypeInfo.DescriptorIndex)
: null);
});
_declaringClass = new LazyValue <ClassReference>(() =>
classImage.ResolveClass(methodRefInfo.ClassIndex));
}
