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LibASTMatchersReference.html
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
"http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<title>AST Matcher Reference</title>
<link type="text/css" rel="stylesheet" href="../menu.css" />
<link type="text/css" rel="stylesheet" href="../content.css" />
<style type="text/css">
td {
padding: .33em;
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td.doc {
display: none;
border-bottom: 1px solid black;
}
td.name:hover {
color: blue;
cursor: pointer;
}
</style>
<script type="text/javascript">
function toggle(id) {
if (!id) return;
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<body onLoad="toggle(location.hash.substring(1, location.hash.length - 6))">
<!--#include virtual="../menu.html.incl"-->
<div id="content">
<h1>AST Matcher Reference</h1>
<p>This document shows all currently implemented matchers. The matchers are grouped
by category and node type they match. You can click on matcher names to show the
matcher's source documentation.</p>
<p>There are three different basic categories of matchers:
<ul>
<li><a href="#decl-matchers">Node Matchers:</a> Matchers that match a specific type of AST node.</li>
<li><a href="#narrowing-matchers">Narrowing Matchers:</a> Matchers that match attributes on AST nodes.</li>
<li><a href="#traversal-matchers">Traversal Matchers:</a> Matchers that allow traversal between AST nodes.</li>
</ul>
</p>
<p>Within each category the matchers are ordered by node type they match on.
Note that if a matcher can match multiple node types, it will appear
multiple times. This means that by searching for Matcher<Stmt> you can
find all matchers that can be used to match on Stmt nodes.</p>
<p>The exception to that rule are matchers that can match on any node. Those
are marked with a * and are listed in the beginning of each category.</p>
<p>Note that the categorization of matchers is a great help when you combine
them into matcher expressions. You will usually want to form matcher expressions
that read like english sentences by alternating between node matchers and
narrowing or traversal matchers, like this:
<pre>
recordDecl(hasDescendant(
ifStmt(hasTrueExpression(
expr(hasDescendant(
ifStmt()))))))
</pre>
</p>
<!-- ======================================================================= -->
<h2 id="decl-matchers">Node Matchers</h2>
<!-- ======================================================================= -->
<p>Node matchers are at the core of matcher expressions - they specify the type
of node that is expected. Every match expression starts with a node matcher,
which can then be further refined with a narrowing or traversal matcher. All
traversal matchers take node matchers as their arguments.</p>
<p>For convenience, all node matchers take an arbitrary number of arguments
and implicitly act as allOf matchers.</p>
<p>Node matchers are the only matchers that support the bind("id") call to
bind the matched node to the given string, to be later retrieved from the
match callback.</p>
<p>It is important to remember that the arguments to node matchers are
predicates on the same node, just with additional information about the type.
This is often useful to make matcher expression more readable by inlining bind
calls into redundant node matchers inside another node matcher:
<pre>
// This binds the CXXRecordDecl to "id", as the decl() matcher will stay on
// the same node.
recordDecl(decl().bind("id"), hasName("::MyClass"))
</pre>
</p>
<table>
<tr style="text-align:left"><th>Return type</th><th>Name</th><th>Parameters</th></tr>
<!-- START_DECL_MATCHERS -->
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1CXXCtorInitializer.html">CXXCtorInitializer</a>></td><td class="name" onclick="toggle('cxxCtorInitializer0')"><a name="cxxCtorInitializer0Anchor">cxxCtorInitializer</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1CXXCtorInitializer.html">CXXCtorInitializer</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="cxxCtorInitializer0"><pre>Matches constructor initializers.
Examples matches i(42).
class C {
C() : i(42) {}
int i;
};
</pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('accessSpecDecl0')"><a name="accessSpecDecl0Anchor">accessSpecDecl</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1AccessSpecDecl.html">AccessSpecDecl</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="accessSpecDecl0"><pre>Matches C++ access specifier declarations.
Given
class C {
public:
int a;
};
accessSpecDecl()
matches 'public:'
</pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('blockDecl0')"><a name="blockDecl0Anchor">blockDecl</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1BlockDecl.html">BlockDecl</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="blockDecl0"><pre>Matches block declarations.
Example matches the declaration of the nameless block printing an input
integer.
myFunc(^(int p) {
printf("%d", p);
})
</pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('classTemplateDecl0')"><a name="classTemplateDecl0Anchor">classTemplateDecl</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1ClassTemplateDecl.html">ClassTemplateDecl</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="classTemplateDecl0"><pre>Matches C++ class template declarations.
Example matches Z
template<class T> class Z {};
</pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('classTemplatePartialSpecializationDecl0')"><a name="classTemplatePartialSpecializationDecl0Anchor">classTemplatePartialSpecializationDecl</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1ClassTemplatePartialSpecializationDecl.html">ClassTemplatePartialSpecializationDecl</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="classTemplatePartialSpecializationDecl0"><pre>Matches C++ class template partial specializations.
Given
template<class T1, class T2, int I>
class A {};
template<class T, int I>
class A<T, T*, I> {};
template<>
class A<int, int, 1> {};
classTemplatePartialSpecializationDecl()
matches the specialization A<T,T*,I> but not A<int,int,1>
</pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('classTemplateSpecializationDecl0')"><a name="classTemplateSpecializationDecl0Anchor">classTemplateSpecializationDecl</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1ClassTemplateSpecializationDecl.html">ClassTemplateSpecializationDecl</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="classTemplateSpecializationDecl0"><pre>Matches C++ class template specializations.
Given
template<typename T> class A {};
template<> class A<double> {};
A<int> a;
classTemplateSpecializationDecl()
matches the specializations A<int> and A<double>
</pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('cxxConstructorDecl0')"><a name="cxxConstructorDecl0Anchor">cxxConstructorDecl</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1CXXConstructorDecl.html">CXXConstructorDecl</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="cxxConstructorDecl0"><pre>Matches C++ constructor declarations.
Example matches Foo::Foo() and Foo::Foo(int)
class Foo {
public:
Foo();
Foo(int);
int DoSomething();
};
</pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('cxxConversionDecl0')"><a name="cxxConversionDecl0Anchor">cxxConversionDecl</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1CXXConversionDecl.html">CXXConversionDecl</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="cxxConversionDecl0"><pre>Matches conversion operator declarations.
Example matches the operator.
class X { operator int() const; };
</pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('cxxDeductionGuideDecl0')"><a name="cxxDeductionGuideDecl0Anchor">cxxDeductionGuideDecl</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1CXXDeductionGuideDecl.html">CXXDeductionGuideDecl</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="cxxDeductionGuideDecl0"><pre>Matches user-defined and implicitly generated deduction guide.
Example matches the deduction guide.
template<typename T>
class X { X(int) };
X(int) -> X<int>;
</pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('cxxDestructorDecl0')"><a name="cxxDestructorDecl0Anchor">cxxDestructorDecl</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1CXXDestructorDecl.html">CXXDestructorDecl</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="cxxDestructorDecl0"><pre>Matches explicit C++ destructor declarations.
Example matches Foo::~Foo()
class Foo {
public:
virtual ~Foo();
};
</pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('cxxMethodDecl0')"><a name="cxxMethodDecl0Anchor">cxxMethodDecl</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1CXXMethodDecl.html">CXXMethodDecl</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="cxxMethodDecl0"><pre>Matches method declarations.
Example matches y
class X { void y(); };
</pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('cxxRecordDecl0')"><a name="cxxRecordDecl0Anchor">cxxRecordDecl</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1CXXRecordDecl.html">CXXRecordDecl</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="cxxRecordDecl0"><pre>Matches C++ class declarations.
Example matches X, Z
class X;
template<class T> class Z {};
</pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('decl0')"><a name="decl0Anchor">decl</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="decl0"><pre>Matches declarations.
Examples matches X, C, and the friend declaration inside C;
void X();
class C {
friend X;
};
</pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('declaratorDecl0')"><a name="declaratorDecl0Anchor">declaratorDecl</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1DeclaratorDecl.html">DeclaratorDecl</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="declaratorDecl0"><pre>Matches declarator declarations (field, variable, function
and non-type template parameter declarations).
Given
class X { int y; };
declaratorDecl()
matches int y.
</pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('enumConstantDecl0')"><a name="enumConstantDecl0Anchor">enumConstantDecl</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1EnumConstantDecl.html">EnumConstantDecl</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="enumConstantDecl0"><pre>Matches enum constants.
Example matches A, B, C
enum X {
A, B, C
};
</pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('enumDecl0')"><a name="enumDecl0Anchor">enumDecl</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1EnumDecl.html">EnumDecl</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="enumDecl0"><pre>Matches enum declarations.
Example matches X
enum X {
A, B, C
};
</pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('fieldDecl0')"><a name="fieldDecl0Anchor">fieldDecl</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1FieldDecl.html">FieldDecl</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="fieldDecl0"><pre>Matches field declarations.
Given
class X { int m; };
fieldDecl()
matches 'm'.
</pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('friendDecl0')"><a name="friendDecl0Anchor">friendDecl</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1FriendDecl.html">FriendDecl</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="friendDecl0"><pre>Matches friend declarations.
Given
class X { friend void foo(); };
friendDecl()
matches 'friend void foo()'.
</pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('functionDecl0')"><a name="functionDecl0Anchor">functionDecl</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1FunctionDecl.html">FunctionDecl</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="functionDecl0"><pre>Matches function declarations.
Example matches f
void f();
</pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('functionTemplateDecl0')"><a name="functionTemplateDecl0Anchor">functionTemplateDecl</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1FunctionTemplateDecl.html">FunctionTemplateDecl</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="functionTemplateDecl0"><pre>Matches C++ function template declarations.
Example matches f
template<class T> void f(T t) {}
</pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('indirectFieldDecl0')"><a name="indirectFieldDecl0Anchor">indirectFieldDecl</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1IndirectFieldDecl.html">IndirectFieldDecl</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="indirectFieldDecl0"><pre>Matches indirect field declarations.
Given
struct X { struct { int a; }; };
indirectFieldDecl()
matches 'a'.
</pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('labelDecl0')"><a name="labelDecl0Anchor">labelDecl</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1LabelDecl.html">LabelDecl</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="labelDecl0"><pre>Matches a declaration of label.
Given
goto FOO;
FOO: bar();
labelDecl()
matches 'FOO:'
</pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('linkageSpecDecl0')"><a name="linkageSpecDecl0Anchor">linkageSpecDecl</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1LinkageSpecDecl.html">LinkageSpecDecl</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="linkageSpecDecl0"><pre>Matches a declaration of a linkage specification.
Given
extern "C" {}
linkageSpecDecl()
matches "extern "C" {}"
</pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('namedDecl0')"><a name="namedDecl0Anchor">namedDecl</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1NamedDecl.html">NamedDecl</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="namedDecl0"><pre>Matches a declaration of anything that could have a name.
Example matches X, S, the anonymous union type, i, and U;
typedef int X;
struct S {
union {
int i;
} U;
};
</pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('namespaceAliasDecl0')"><a name="namespaceAliasDecl0Anchor">namespaceAliasDecl</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1NamespaceAliasDecl.html">NamespaceAliasDecl</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="namespaceAliasDecl0"><pre>Matches a declaration of a namespace alias.
Given
namespace test {}
namespace alias = ::test;
namespaceAliasDecl()
matches "namespace alias" but not "namespace test"
</pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('namespaceDecl0')"><a name="namespaceDecl0Anchor">namespaceDecl</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1NamespaceDecl.html">NamespaceDecl</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="namespaceDecl0"><pre>Matches a declaration of a namespace.
Given
namespace {}
namespace test {}
namespaceDecl()
matches "namespace {}" and "namespace test {}"
</pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('nonTypeTemplateParmDecl0')"><a name="nonTypeTemplateParmDecl0Anchor">nonTypeTemplateParmDecl</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1NonTypeTemplateParmDecl.html">NonTypeTemplateParmDecl</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="nonTypeTemplateParmDecl0"><pre>Matches non-type template parameter declarations.
Given
template <typename T, int N> struct C {};
nonTypeTemplateParmDecl()
matches 'N', but not 'T'.
</pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('objcCategoryDecl0')"><a name="objcCategoryDecl0Anchor">objcCategoryDecl</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1ObjCCategoryDecl.html">ObjCCategoryDecl</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="objcCategoryDecl0"><pre>Matches Objective-C category declarations.
Example matches Foo (Additions)
@interface Foo (Additions)
@end
</pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('objcCategoryImplDecl0')"><a name="objcCategoryImplDecl0Anchor">objcCategoryImplDecl</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1ObjCCategoryImplDecl.html">ObjCCategoryImplDecl</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="objcCategoryImplDecl0"><pre>Matches Objective-C category definitions.
Example matches Foo (Additions)
@implementation Foo (Additions)
@end
</pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('objcImplementationDecl0')"><a name="objcImplementationDecl0Anchor">objcImplementationDecl</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1ObjCImplementationDecl.html">ObjCImplementationDecl</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="objcImplementationDecl0"><pre>Matches Objective-C implementation declarations.
Example matches Foo
@implementation Foo
@end
</pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('objcInterfaceDecl0')"><a name="objcInterfaceDecl0Anchor">objcInterfaceDecl</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1ObjCInterfaceDecl.html">ObjCInterfaceDecl</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="objcInterfaceDecl0"><pre>Matches Objective-C interface declarations.
Example matches Foo
@interface Foo
@end
</pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('objcIvarDecl0')"><a name="objcIvarDecl0Anchor">objcIvarDecl</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1ObjCIvarDecl.html">ObjCIvarDecl</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="objcIvarDecl0"><pre>Matches Objective-C instance variable declarations.
Example matches _enabled
@implementation Foo {
BOOL _enabled;
}
@end
</pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('objcMethodDecl0')"><a name="objcMethodDecl0Anchor">objcMethodDecl</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1ObjCMethodDecl.html">ObjCMethodDecl</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="objcMethodDecl0"><pre>Matches Objective-C method declarations.
Example matches both declaration and definition of -[Foo method]
@interface Foo
- (void)method;
@end
@implementation Foo
- (void)method {}
@end
</pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('objcPropertyDecl0')"><a name="objcPropertyDecl0Anchor">objcPropertyDecl</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1ObjCPropertyDecl.html">ObjCPropertyDecl</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="objcPropertyDecl0"><pre>Matches Objective-C property declarations.
Example matches enabled
@interface Foo
@property BOOL enabled;
@end
</pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('objcProtocolDecl0')"><a name="objcProtocolDecl0Anchor">objcProtocolDecl</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1ObjCProtocolDecl.html">ObjCProtocolDecl</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="objcProtocolDecl0"><pre>Matches Objective-C protocol declarations.
Example matches FooDelegate
@protocol FooDelegate
@end
</pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('parmVarDecl0')"><a name="parmVarDecl0Anchor">parmVarDecl</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1ParmVarDecl.html">ParmVarDecl</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="parmVarDecl0"><pre>Matches parameter variable declarations.
Given
void f(int x);
parmVarDecl()
matches int x.
</pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('recordDecl0')"><a name="recordDecl0Anchor">recordDecl</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1RecordDecl.html">RecordDecl</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="recordDecl0"><pre>Matches class, struct, and union declarations.
Example matches X, Z, U, and S
class X;
template<class T> class Z {};
struct S {};
union U {};
</pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('staticAssertDecl0')"><a name="staticAssertDecl0Anchor">staticAssertDecl</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1StaticAssertDecl.html">StaticAssertDecl</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="staticAssertDecl0"><pre>Matches a C++ static_assert declaration.
Example:
staticAssertExpr()
matches
static_assert(sizeof(S) == sizeof(int))
in
struct S {
int x;
};
static_assert(sizeof(S) == sizeof(int));
</pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('tagDecl0')"><a name="tagDecl0Anchor">tagDecl</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1TagDecl.html">TagDecl</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="tagDecl0"><pre>Matches tag declarations.
Example matches X, Z, U, S, E
class X;
template<class T> class Z {};
struct S {};
union U {};
enum E {
A, B, C
};
</pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('templateTemplateParmDecl0')"><a name="templateTemplateParmDecl0Anchor">templateTemplateParmDecl</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1TemplateTemplateParmDecl.html">TemplateTemplateParmDecl</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="templateTemplateParmDecl0"><pre>Matches template template parameter declarations.
Given
template <template <typename> class Z, int N> struct C {};
templateTypeParmDecl()
matches 'Z', but not 'N'.
</pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('templateTypeParmDecl0')"><a name="templateTypeParmDecl0Anchor">templateTypeParmDecl</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1TemplateTypeParmDecl.html">TemplateTypeParmDecl</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="templateTypeParmDecl0"><pre>Matches template type parameter declarations.
Given
template <typename T, int N> struct C {};
templateTypeParmDecl()
matches 'T', but not 'N'.
</pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('translationUnitDecl0')"><a name="translationUnitDecl0Anchor">translationUnitDecl</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1TranslationUnitDecl.html">TranslationUnitDecl</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="translationUnitDecl0"><pre>Matches the top declaration context.
Given
int X;
namespace NS {
int Y;
} // namespace NS
decl(hasDeclContext(translationUnitDecl()))
matches "int X", but not "int Y".
</pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('typeAliasDecl0')"><a name="typeAliasDecl0Anchor">typeAliasDecl</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1TypeAliasDecl.html">TypeAliasDecl</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="typeAliasDecl0"><pre>Matches type alias declarations.
Given
typedef int X;
using Y = int;
typeAliasDecl()
matches "using Y = int", but not "typedef int X"
</pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('typeAliasTemplateDecl0')"><a name="typeAliasTemplateDecl0Anchor">typeAliasTemplateDecl</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1TypeAliasTemplateDecl.html">TypeAliasTemplateDecl</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="typeAliasTemplateDecl0"><pre>Matches type alias template declarations.
typeAliasTemplateDecl() matches
template <typename T>
using Y = X<T>;
</pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('typedefDecl0')"><a name="typedefDecl0Anchor">typedefDecl</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1TypedefDecl.html">TypedefDecl</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="typedefDecl0"><pre>Matches typedef declarations.
Given
typedef int X;
using Y = int;
typedefDecl()
matches "typedef int X", but not "using Y = int"
</pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('typedefNameDecl0')"><a name="typedefNameDecl0Anchor">typedefNameDecl</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1TypedefNameDecl.html">TypedefNameDecl</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="typedefNameDecl0"><pre>Matches typedef name declarations.
Given
typedef int X;
using Y = int;
typedefNameDecl()
matches "typedef int X" and "using Y = int"
</pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('unresolvedUsingTypenameDecl0')"><a name="unresolvedUsingTypenameDecl0Anchor">unresolvedUsingTypenameDecl</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1UnresolvedUsingTypenameDecl.html">UnresolvedUsingTypenameDecl</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="unresolvedUsingTypenameDecl0"><pre>Matches unresolved using value declarations that involve the
typename.
Given
template <typename T>
struct Base { typedef T Foo; };
template<typename T>
struct S : private Base<T> {
using typename Base<T>::Foo;
};
unresolvedUsingTypenameDecl()
matches using Base<T>::Foo </pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('unresolvedUsingValueDecl0')"><a name="unresolvedUsingValueDecl0Anchor">unresolvedUsingValueDecl</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1UnresolvedUsingValueDecl.html">UnresolvedUsingValueDecl</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="unresolvedUsingValueDecl0"><pre>Matches unresolved using value declarations.
Given
template<typename X>
class C : private X {
using X::x;
};
unresolvedUsingValueDecl()
matches using X::x </pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('usingDecl0')"><a name="usingDecl0Anchor">usingDecl</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1UsingDecl.html">UsingDecl</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="usingDecl0"><pre>Matches using declarations.
Given
namespace X { int x; }
using X::x;
usingDecl()
matches using X::x </pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('usingDirectiveDecl0')"><a name="usingDirectiveDecl0Anchor">usingDirectiveDecl</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1UsingDirectiveDecl.html">UsingDirectiveDecl</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="usingDirectiveDecl0"><pre>Matches using namespace declarations.
Given
namespace X { int x; }
using namespace X;
usingDirectiveDecl()
matches using namespace X </pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('valueDecl0')"><a name="valueDecl0Anchor">valueDecl</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1ValueDecl.html">ValueDecl</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="valueDecl0"><pre>Matches any value declaration.
Example matches A, B, C and F
enum X { A, B, C };
void F();
</pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>></td><td class="name" onclick="toggle('varDecl0')"><a name="varDecl0Anchor">varDecl</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1VarDecl.html">VarDecl</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="varDecl0"><pre>Matches variable declarations.
Note: this does not match declarations of member variables, which are
"field" declarations in Clang parlance.
Example matches a
int a;
</pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1DecompositionDecl.html">DecompositionDecl</a>></td><td class="name" onclick="toggle('decompositionDecl0')"><a name="decompositionDecl0Anchor">decompositionDecl</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1DecompositionDecl.html">DecompositionDecl</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="decompositionDecl0"><pre>Matches decomposition-declarations.
Examples matches the declaration node with foo and bar, but not
number.
(matcher = declStmt(has(decompositionDecl())))
int number = 42;
auto [foo, bar] = std::make_pair{42, 42};
</pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1NestedNameSpecifierLoc.html">NestedNameSpecifierLoc</a>></td><td class="name" onclick="toggle('nestedNameSpecifierLoc0')"><a name="nestedNameSpecifierLoc0Anchor">nestedNameSpecifierLoc</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1NestedNameSpecifierLoc.html">NestedNameSpecifierLoc</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="nestedNameSpecifierLoc0"><pre>Same as nestedNameSpecifier but matches NestedNameSpecifierLoc.
</pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1NestedNameSpecifier.html">NestedNameSpecifier</a>></td><td class="name" onclick="toggle('nestedNameSpecifier0')"><a name="nestedNameSpecifier0Anchor">nestedNameSpecifier</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1NestedNameSpecifier.html">NestedNameSpecifier</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="nestedNameSpecifier0"><pre>Matches nested name specifiers.
Given
namespace ns {
struct A { static void f(); };
void A::f() {}
void g() { A::f(); }
}
ns::A a;
nestedNameSpecifier()
matches "ns::" and both "A::"
</pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1OMPClause.html">OMPClause</a>></td><td class="name" onclick="toggle('ompDefaultClause0')"><a name="ompDefaultClause0Anchor">ompDefaultClause</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1OMPDefaultClause.html">OMPDefaultClause</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="ompDefaultClause0"><pre>Matches OpenMP ``default`` clause.
Given
#pragma omp parallel default(none)
#pragma omp parallel default(shared)
#pragma omp parallel default(firstprivate)
#pragma omp parallel
``ompDefaultClause()`` matches ``default(none)``, ``default(shared)``, and
``default(firstprivate)``
</pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1QualType.html">QualType</a>></td><td class="name" onclick="toggle('qualType0')"><a name="qualType0Anchor">qualType</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1QualType.html">QualType</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="qualType0"><pre>Matches QualTypes in the clang AST.
</pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('addrLabelExpr0')"><a name="addrLabelExpr0Anchor">addrLabelExpr</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1AddrLabelExpr.html">AddrLabelExpr</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="addrLabelExpr0"><pre>Matches address of label statements (GNU extension).
Given
FOO: bar();
void *ptr = &&FOO;
goto *bar;
addrLabelExpr()
matches '&&FOO'
</pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('arraySubscriptExpr0')"><a name="arraySubscriptExpr0Anchor">arraySubscriptExpr</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1ArraySubscriptExpr.html">ArraySubscriptExpr</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="arraySubscriptExpr0"><pre>Matches array subscript expressions.
Given
int i = a[1];
arraySubscriptExpr()
matches "a[1]"
</pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('asmStmt0')"><a name="asmStmt0Anchor">asmStmt</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1AsmStmt.html">AsmStmt</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="asmStmt0"><pre>Matches asm statements.
int i = 100;
__asm("mov al, 2");
asmStmt()
matches '__asm("mov al, 2")'
</pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('atomicExpr0')"><a name="atomicExpr0Anchor">atomicExpr</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1AtomicExpr.html">AtomicExpr</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="atomicExpr0"><pre>Matches atomic builtins.
Example matches __atomic_load_n(ptr, 1)
void foo() { int *ptr; __atomic_load_n(ptr, 1); }
</pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('autoreleasePoolStmt0')"><a name="autoreleasePoolStmt0Anchor">autoreleasePoolStmt</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1ObjCAutoreleasePoolStmt.html">ObjCAutoreleasePoolStmt</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="autoreleasePoolStmt0"><pre>Matches an Objective-C autorelease pool statement.
Given
@autoreleasepool {
int x = 0;
}
autoreleasePoolStmt(stmt()) matches the declaration of "x"
inside the autorelease pool.
</pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('binaryConditionalOperator0')"><a name="binaryConditionalOperator0Anchor">binaryConditionalOperator</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1BinaryConditionalOperator.html">BinaryConditionalOperator</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="binaryConditionalOperator0"><pre>Matches binary conditional operator expressions (GNU extension).
Example matches a ?: b
(a ?: b) + 42;
</pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('binaryOperator0')"><a name="binaryOperator0Anchor">binaryOperator</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1BinaryOperator.html">BinaryOperator</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="binaryOperator0"><pre>Matches binary operator expressions.
Example matches a || b
!(a || b)
</pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('blockExpr0')"><a name="blockExpr0Anchor">blockExpr</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1BlockExpr.html">BlockExpr</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="blockExpr0"><pre>Matches a reference to a block.
Example: matches "^{}":
void f() { ^{}(); }
</pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('breakStmt0')"><a name="breakStmt0Anchor">breakStmt</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1BreakStmt.html">BreakStmt</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="breakStmt0"><pre>Matches break statements.
Given
while (true) { break; }
breakStmt()
matches 'break'
</pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('cStyleCastExpr0')"><a name="cStyleCastExpr0Anchor">cStyleCastExpr</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1CStyleCastExpr.html">CStyleCastExpr</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="cStyleCastExpr0"><pre>Matches a C-style cast expression.
Example: Matches (int) 2.2f in
int i = (int) 2.2f;
</pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('callExpr0')"><a name="callExpr0Anchor">callExpr</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1CallExpr.html">CallExpr</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="callExpr0"><pre>Matches call expressions.
Example matches x.y() and y()
X x;
x.y();
y();
</pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('caseStmt0')"><a name="caseStmt0Anchor">caseStmt</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1CaseStmt.html">CaseStmt</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="caseStmt0"><pre>Matches case statements inside switch statements.
Given
switch(a) { case 42: break; default: break; }
caseStmt()
matches 'case 42:'.
</pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('castExpr0')"><a name="castExpr0Anchor">castExpr</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1CastExpr.html">CastExpr</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="castExpr0"><pre>Matches any cast nodes of Clang's AST.
Example: castExpr() matches each of the following:
(int) 3;
const_cast<Expr *>(SubExpr);
char c = 0;
but does not match
int i = (0);
int k = 0;
</pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('characterLiteral0')"><a name="characterLiteral0Anchor">characterLiteral</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1CharacterLiteral.html">CharacterLiteral</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="characterLiteral0"><pre>Matches character literals (also matches wchar_t).
Not matching Hex-encoded chars (e.g. 0x1234, which is a IntegerLiteral),
though.
Example matches 'a', L'a'
char ch = 'a';
wchar_t chw = L'a';
</pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('chooseExpr0')"><a name="chooseExpr0Anchor">chooseExpr</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1ChooseExpr.html">ChooseExpr</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="chooseExpr0"><pre>Matches GNU __builtin_choose_expr.
</pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('compoundLiteralExpr0')"><a name="compoundLiteralExpr0Anchor">compoundLiteralExpr</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1CompoundLiteralExpr.html">CompoundLiteralExpr</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="compoundLiteralExpr0"><pre>Matches compound (i.e. non-scalar) literals
Example match: {1}, (1, 2)
int array[4] = {1};
vector int myvec = (vector int)(1, 2);
</pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('compoundStmt0')"><a name="compoundStmt0Anchor">compoundStmt</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1CompoundStmt.html">CompoundStmt</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="compoundStmt0"><pre>Matches compound statements.
Example matches '{}' and '{{}}' in 'for (;;) {{}}'
for (;;) {{}}
</pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('conditionalOperator0')"><a name="conditionalOperator0Anchor">conditionalOperator</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1ConditionalOperator.html">ConditionalOperator</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="conditionalOperator0"><pre>Matches conditional operator expressions.
Example matches a ? b : c
(a ? b : c) + 42
</pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('constantExpr0')"><a name="constantExpr0Anchor">constantExpr</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1ConstantExpr.html">ConstantExpr</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="constantExpr0"><pre>Matches a constant expression wrapper.
Example matches the constant in the case statement:
(matcher = constantExpr())
switch (a) {
case 37: break;
}
</pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('continueStmt0')"><a name="continueStmt0Anchor">continueStmt</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1ContinueStmt.html">ContinueStmt</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="continueStmt0"><pre>Matches continue statements.
Given
while (true) { continue; }
continueStmt()
matches 'continue'
</pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('cudaKernelCallExpr0')"><a name="cudaKernelCallExpr0Anchor">cudaKernelCallExpr</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1CUDAKernelCallExpr.html">CUDAKernelCallExpr</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="cudaKernelCallExpr0"><pre>Matches CUDA kernel call expression.
Example matches,
kernel<<<i,j>>>();
</pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('cxxBindTemporaryExpr0')"><a name="cxxBindTemporaryExpr0Anchor">cxxBindTemporaryExpr</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1CXXBindTemporaryExpr.html">CXXBindTemporaryExpr</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="cxxBindTemporaryExpr0"><pre>Matches nodes where temporaries are created.
Example matches FunctionTakesString(GetStringByValue())
(matcher = cxxBindTemporaryExpr())
FunctionTakesString(GetStringByValue());
FunctionTakesStringByPointer(GetStringPointer());
</pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('cxxBoolLiteral0')"><a name="cxxBoolLiteral0Anchor">cxxBoolLiteral</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1CXXBoolLiteralExpr.html">CXXBoolLiteralExpr</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="cxxBoolLiteral0"><pre>Matches bool literals.
Example matches true
true
</pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('cxxCatchStmt0')"><a name="cxxCatchStmt0Anchor">cxxCatchStmt</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1CXXCatchStmt.html">CXXCatchStmt</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="cxxCatchStmt0"><pre>Matches catch statements.
try {} catch(int i) {}
cxxCatchStmt()
matches 'catch(int i)'
</pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('cxxConstCastExpr0')"><a name="cxxConstCastExpr0Anchor">cxxConstCastExpr</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1CXXConstCastExpr.html">CXXConstCastExpr</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="cxxConstCastExpr0"><pre>Matches a const_cast expression.
Example: Matches const_cast<int*>(&r) in
int n = 42;
const int &r(n);
int* p = const_cast<int*>(&r);
</pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('cxxConstructExpr0')"><a name="cxxConstructExpr0Anchor">cxxConstructExpr</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1CXXConstructExpr.html">CXXConstructExpr</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="cxxConstructExpr0"><pre>Matches constructor call expressions (including implicit ones).
Example matches string(ptr, n) and ptr within arguments of f
(matcher = cxxConstructExpr())
void f(const string &a, const string &b);
char *ptr;
int n;
f(string(ptr, n), ptr);
</pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('cxxDefaultArgExpr0')"><a name="cxxDefaultArgExpr0Anchor">cxxDefaultArgExpr</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1CXXDefaultArgExpr.html">CXXDefaultArgExpr</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="cxxDefaultArgExpr0"><pre>Matches the value of a default argument at the call site.
Example matches the CXXDefaultArgExpr placeholder inserted for the
default value of the second parameter in the call expression f(42)
(matcher = cxxDefaultArgExpr())
void f(int x, int y = 0);
f(42);
</pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('cxxDeleteExpr0')"><a name="cxxDeleteExpr0Anchor">cxxDeleteExpr</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1CXXDeleteExpr.html">CXXDeleteExpr</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="cxxDeleteExpr0"><pre>Matches delete expressions.
Given
delete X;
cxxDeleteExpr()
matches 'delete X'.
</pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('cxxDependentScopeMemberExpr0')"><a name="cxxDependentScopeMemberExpr0Anchor">cxxDependentScopeMemberExpr</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1CXXDependentScopeMemberExpr.html">CXXDependentScopeMemberExpr</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="cxxDependentScopeMemberExpr0"><pre>Matches member expressions where the actual member referenced could not be
resolved because the base expression or the member name was dependent.
Given
template <class T> void f() { T t; t.g(); }
cxxDependentScopeMemberExpr()
matches t.g
</pre></td></tr>
<tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>></td><td class="name" onclick="toggle('cxxDynamicCastExpr0')"><a name="cxxDynamicCastExpr0Anchor">cxxDynamicCastExpr</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1CXXDynamicCastExpr.html">CXXDynamicCastExpr</a>>...</td></tr>
<tr><td colspan="4" class="doc" id="cxxDynamicCastExpr0"><pre>Matches a dynamic_cast expression.
Example:
cxxDynamicCastExpr()
matches
dynamic_cast<D*>(&b);
in
struct B { virtual ~B() {} }; struct D : B {};