[cfe-dev] Question about TreeTransform

[Andrew Gozillon via cfe-dev]

Hi guys,


This might be a silly and naive question, but I was wondering if its at all possible for a type to change during a TreeTransform (I believe in general that's what the TreeTransform code is for but I could be incorrect)?


For example at the moment I have a Type that acts as a wrapper for another Type (alongside some extra information), however during transformation for the wrapper Type I would like to "transform" it to the contained Type. The contained type would be something like a pointer to another type and the wrapper in essence is a throw away class.


I've given it a try but when I swap out for the contained type I get a type size error "incorrect data size provided to CreateTypeSourceInfo!" within the TypeLocBuilder.h as the type sizes don't quite match up. Basically at this stage the TypeSourceInfo is that of the Wrapper with the contained type and the QualType itself is the contained type.


So in essence my questions are, is what I'm trying to do possible? If it is, am I perhaps missing a step within my own Transform function that's required to modify the type source information appropriately?


As perhaps useful information the TypeLoc class I've based the wrapper class off of is the TypeSpecTypeLoc class.


I'd be happy to provide more information or explain a little better for the sake of clarity, if that's required. As I'm unsure if this is enough information to go off of!


Thank you for your time.


Best Regards,

Andrew




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