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<title>Clang - Quick Tutorial</title>
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<h1>Tutorial</h1>
<p>Invoking the BoostCon tool:</p>
<pre>
$ clang -cc1 -boostcon t.cpp
</pre>
<p>Teach the BoostCon action to identify and print C++ classes:</p>
<pre>
bool VisitCXXRecordDecl(CXXRecordDecl *D) {
std::cout &lt;&lt; D-&gt;getNameAsString()
&lt;&lt; '\n';
return false;
}
</pre>
<p>Walk and print base classes of a class:</p>
<pre>
for(CXXRecordDecl::base_class_iterator
B = D-&gt;bases_begin(), BEnd = D-&gt;bases_end();
B != BEnd; ++B) {
QualType BaseType = B-&gt;getType();
std::cout &lt;&lt; " " &lt;&lt; BaseType.getAsString()
&lt;&lt; '\n';
}
</pre>
<p>Retrieve the C++ class declaration from a base type:</p>
<pre>
if (const RecordType *RTy
= BaseType-&gt;getAs&lt;RecordType&gt;()) {
RecordDecl *Base = RTy-&gt;getDecl();
if (CXXRecordDecl *BaseCXX
= dyn_cast&lt;CXXRecordDecl&gt;(Base)) {
}
}
</pre>
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