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<p class="MsoNormal">Hi all,<o:p></o:p></p>
<p class="MsoNormal">I’m new to clang and having a little trouble. Would be happy to get some help.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I’m trying to build a tool that (among other things) combines two code parts: The first one is a c file that is given by the user and the second is a fixed c function.<o:p></o:p></p>
<p class="MsoNormal">I want to have access to the AST nodes of both code parts, extract the relevant stmts from each, and build from them a new compoundStmt node (initiated with a vector<Stmt*>), which will be transformed back to c code.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I’m having trouble with getting access to both AST’s simultaneously.<o:p></o:p></p>
<p class="MsoNormal">I tried to access the input code with libTooling by running the following command from main:<o:p></o:p></p>
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<span style="font-size:10.0pt;font-family:"Courier New";color:#333333">Tool.run(newFrontendActionFactory</span><span style="font-size:10.0pt;font-family:"Courier New";color:#666666"><</span><span style="font-size:10.0pt;font-family:"Courier New";color:#333333">clang</span><span style="font-size:10.0pt;font-family:"Courier New";color:#666666">::</span><span style="font-size:10.0pt;font-family:"Courier New";color:#333333">MyAction</span><span style="font-size:10.0pt;font-family:"Courier New";color:#666666">></span><span style="font-size:10.0pt;font-family:"Courier New";color:#333333">().get());<o:p></o:p></span></p>
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<p class="MsoNormal">And access to the fixed code using runToolOnCode and then pass the compoundStmt pointer of the function body to the main:
<o:p></o:p></p>
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<pre style="margin-bottom:9.0pt;background:#F0F0F0;border:none;padding:0in"><span class="n"><span style="color:#333333">clang</span></span><span class="p"><span style="color:#333333">::</span></span><span class="n"><span style="color:#333333">tooling</span></span><span class="p"><span style="color:#333333">::</span></span><span class="n"><span style="color:#333333">runToolOnCode</span></span><span class="p"><span style="color:#333333">(</span></span><span class="n"><span style="color:#333333">new</span></span><span style="color:#333333"> <span class="n">MyOtherAction</span><span class="p">,</span> <span class="n">MyFixedText</span><span class="p">);</span><o:p></o:p></span></pre>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">but it seems like both tools are running independently with no ability to pass information from one to the other.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Can anyone give me a hint on this or give me a link to a code that does something similar?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thanks,<o:p></o:p></p>
<p class="MsoNormal">Rachel.<o:p></o:p></p>
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