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<p class="MsoNormal">Hello,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I am attempting to use TreeTransform to copy a function, with some modifications to the function calls within that function. I have that part of the transformation working by implementing TransformDecl. However, I am trying to solve an
issue where it does not appear that TreeTransform is transforming VarDecls in the old function to the new function. When I try to use a local variable in a function using my TreeTransform, I get the following error (paraphrased):<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">error: reference to local variable 'x' declared in enclosing function ‘f’<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">note: 'x' declared here …<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">where ‘x’ is a local variable in a function ‘f’ that I’m using my transform on.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">My TransformDecl checks if the Decl is the original function decl, and if so, maps it to the new function decl.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I can fix this by creating copies of every VarDecl (in the new function) in TransformDecl, but I would prefer to use the existing functionality. Copying VarDecls without losing information is non-trivial, and I worry that there are other
elements of the AST that will have the same problem.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Surely there is a way to have TreeTransform handle this situation already?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thanks for any suggestions.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Dillon<o:p></o:p></p>
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