[cfe-dev] How to make clang compile the data from the RewriteBuffer

Vassil Vassilev vvasilev at cern.ch
Fri Aug 8 09:16:38 PDT 2014

   There is a pending patch on cfe-commits about this "[PATCH] 
clang/Frontend/MultiplexConsumer.h". With it you could reorder the 
ASTConsumers in clang and get yours before codegen.
On 08/08/14 16:48, Bogdan Tabacaru wrote:
> Hi everyone,
> I want to create a plugin that makes some changes on the parsed AST 
> and that directly compiles the changes made on the AST. It is 
> important that I do not generate a new file with the changes on the AST.
> So, in other words, I want to change the AST in place, and then 
> compile it in the same run, using a Clang Plugin.
> I am using llvm 3.4.2.
> By following the RecursiveASTVisitor example, I have written a clang 
> plugin which modifies the parsed AST.
> I am using the Rewriter class to ReplaceText inside the buffer.
> I am also using the -add-plugin command(instead the "standard" -plugin 
> command) when calling the plugin.
> The rewriting part works excellently. However, when I continue the 
> compilation, clang only compiles the original file, instead of the 
> original file + changes.
> Is there a way to tell clang/llvm to compile what I have written in 
> the AST (using the Rewriter) without creating an intermediate file?
> Thanks a lot for your help,
> Bogdan
> _______________________________________________
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> cfe-dev at cs.uiuc.edu
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