Here's what I came up with, but it results in an invalid program:
private static void SwapTypes(TypeReference search,
TypeReference replace)
{
foreach (TypeDefinition t in Module.Types)
{
foreach (FieldDefinition f in t.Fields)
{
if (f.FieldType == search)
{
f.FieldType = replace;
}
}
foreach (MethodDefinition m in t.Methods)
{
if (m.ReturnType.ReturnType == search)
{
m.ReturnType.ReturnType =
replace;
}
foreach (ParameterDefinition p in
m.Parameters)
{
if (p.ParameterType == search)
{
p.ParameterType =
replace;
}
}
if (m.HasBody)
{
foreach (VariableDefinition v
in m.Body.Variables)
{
if (v.VariableType ==
search)
{
v.VariableType
= replace;
}
}
foreach (Instruction i in
m.Body.Instructions)
{
if (i.Operand is
TypeReference && (TypeReference)i.Operand == search)
{
i.Operand =
replace;
}
}
}
}
}
}
Thanks,
Paul Buonopane
On Thu, May 26, 2011 at 5:21 AM, Gábor Kozár <[email protected]> wrote:
> It most certainly is possible, but it'll be not too easy to code. Basically
> what you need to do is find all references to Lightning1 or its members in
> the assembly you're processing, and replace them with the appropriate
> reference to Lightning2, or its members.
> Go through all types in the assembly, and check their base type, and the
> generic arguments of the base type. Then go through all the methods in the
> type (including the property get_* and set_* methods - maybe even the event
> add_* and remove_* methods), fix their parameter and local variable types,
> then iterate through the instructions to find all references to Lightning1
> or its member.
> I believe the easiest way to achieve this would be to check the Operand of
> each instruction, and see if it's a TypeReference. If it is, check if it is
> Lightning1, and also check its generic arguments. If it's not a
> TypeReference, see if it's a MemberReference whose DeclaringType is
> Lightning1, or has Lightning1 as a generic argument.
> If Lightning1 is an attribute type, make sure to also check the
> CustomAttributes of all eligible members. I think that'll cover everything.
> I'm afraid I don't know any easier way to achieve this. Good luck!
> 2011/5/26 Paul Buonopane <[email protected]>
>>
>> Is it possible to inject a type in another's place? For example, if I
>> have Lighting1 and Lighting2, the two being almost identical, could I inject
>> Lighting2 in place of Lighting1? If so, what would it entail? --
>> --
>> mono-cecil
>
> --
> --
> mono-cecil
--
--
mono-cecil
