<div dir="ltr">If you need a starting template for AST matchers, <a href="https://github.com/firolino/clang-tool">https://github.com/firolino/clang-tool</a> might be useful for you.</div><div class="gmail_extra"><br><div class="gmail_quote">2017-08-01 15:44 GMT+02:00 Marcel Schaible via cfe-dev <span dir="ltr"><<a href="mailto:cfe-dev@lists.llvm.org" target="_blank">cfe-dev@lists.llvm.org</a>></span>:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div text="#000000" bgcolor="#FFFFFF">
At the moment I am using the ASTConsumer/ASTVisitor interface. But I
am planing to switch to AST matchers asap.<br>
After scratching my head for a while I found the solution for my
problem. It was just a misunderstanding of the inheritance tree.<br>
<br>
Thanks for your help<span class="HOEnZb"><font color="#888888"><br>
<br>
Marcel</font></span><div><div class="h5"><br>
<div class="m_6494952880152468731moz-cite-prefix">Am 01.08.2017 um 13:48 schrieb Manuel
Klimek:<br>
</div>
<blockquote type="cite">
<div dir="ltr">
<div class="gmail_quote">
<div dir="ltr">On Tue, Aug 1, 2017 at 12:35 PM Marcel Schaible
<<a href="mailto:marcel@schaible-consulting.de" target="_blank">marcel@schaible-consulting.de</a><wbr>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div text="#000000" bgcolor="#FFFFFF"> Manuel, thanks for
your help. Of course I went already through a bunch of
documentation including libtooling.<br>
My tool is performing now the basic setup and can
transform some simple cases.<br>
<br>
Do you know by chance how to retrieve the ASTContext from
a ReturnStmt and a FuncDecl?<br>
</div>
</blockquote>
<div><br>
</div>
<div>Generally, if you use AST matchers you'll have the
ASTContext in the callback. What exactly is the problem
you're running into?</div>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div text="#000000" bgcolor="#FFFFFF"><br>
BTW: Your presentation at the EURO LLVM was very helpful!<br>
</div>
</blockquote>
<div><br>
</div>
<div>Thanks! :)</div>
<div> </div>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div text="#000000" bgcolor="#FFFFFF"> <br>
Greetings from Munich</div>
<div text="#000000" bgcolor="#FFFFFF"><br>
<br>
Marcel</div>
<div text="#000000" bgcolor="#FFFFFF"><br>
<br>
<br>
<br>
<div class="m_6494952880152468731m_1533006104724532659moz-cite-prefix">Am
01.08.2017 um 12:16 schrieb Manuel Klimek:<br>
</div>
<blockquote type="cite">
<div dir="ltr">
<div>You'll probably want to take a look at
libtooling:</div>
<a href="https://clang.llvm.org/docs/LibTooling.html" target="_blank">https://clang.llvm.org/docs/<wbr>LibTooling.html</a><br>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr">On Fri, Jul 28, 2017 at 4:54 PM Marcel
Schaible via cfe-dev <<a href="mailto:cfe-dev@lists.llvm.org" target="_blank">cfe-dev@lists.llvm.org</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div text="#000000" bgcolor="#FFFFFF">
<p>Hi everyone,</p>
let's consider the example:
<p><font face="Courier New, Courier, monospace">int
foo(int p) {</font></p>
<p><font face="Courier New, Courier, monospace">
if ( p)</font></p>
<p><font face="Courier New, Courier, monospace">
/* code path#1 */<br>
</font></p>
<p><font face="Courier New, Courier, monospace">
return 0;</font></p>
<p><font face="Courier New, Courier, monospace">
else {</font></p>
<p><font face="Courier New, Courier, monospace">
/* code path#2 */<br>
</font></p>
<p><font face="Courier New, Courier, monospace">
return 1;<br>
</font></p>
<p><font face="Courier New, Courier, monospace">
}</font></p>
<p><font face="Courier New, Courier, monospace">}<br>
</font></p>
<p>1. What is the best solution to get the string
representation of the expression of a return
statement?</p>
<p>2. Because I want to perform some
transformation with return statements I have to
figure out if they are enclosed in a block? <br>
</p>
<p>The example above should be transformed in
something like<br>
</p>
<p><font face="Courier New, Courier, monospace">int
foo(int p) {</font></p>
<p><font face="Courier New, Courier, monospace">
if ( p) { /* <---- */<br>
</font></p>
<p><font face="Courier New, Courier, monospace">
/* do some processing ... */<br>
</font></p>
<p><font face="Courier New, Courier, monospace">
return 0;</font></p>
<p><font face="Courier New, Courier, monospace">
} /* <--- */<br>
</font></p>
<p><font face="Courier New, Courier, monospace">
else {</font></p>
<p><font face="Courier New, Courier, monospace">
/* do some processing ... */<br>
</font></p>
<font face="Courier New, Courier, monospace">
return 1;<br>
</font>
<p><font face="Courier New, Courier, monospace">
}</font></p>
<p><font face="Courier New, Courier, monospace">}<br>
</font></p>
Any hints or pointers are welcome.<br>
<p>Thanks</p>
<p>Marcel<br>
</p>
</div>
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