[ASTMatchers] A matcher for Objective-C @autoreleasepool

Differential Revision: https://reviews.llvm.org/D48910

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@336468 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 66 insertions, 8 deletions

diff --git a/docs/LibASTMatchersReference.html b/docs/LibASTMatchersReference.html
index 6c67fd5b60..3f0ded2270 100644
--- a/docs/LibASTMatchersReference.html
+++ b/docs/LibASTMatchersReference.html
@@ -662,6 +662,18 @@ Example matches __atomic_load_n(ptr, 1)
 </pre></td></tr>
 
 
+<tr><td>Matcher&lt;<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>&gt;</td><td class="name" onclick="toggle('autoreleasePoolStmt0')"><a name="autoreleasePoolStmt0Anchor">autoreleasePoolStmt</a></td><td>Matcher&lt;<a href="http://clang.llvm.org/doxygen/classclang_1_1ObjCAutoreleasePoolStmt.html">ObjCAutoreleasePoolStmt</a>&gt;...</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&lt;<a href="http://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>&gt;</td><td class="name" onclick="toggle('binaryConditionalOperator0')"><a name="binaryConditionalOperator0Anchor">binaryConditionalOperator</a></td><td>Matcher&lt;<a href="http://clang.llvm.org/doxygen/classclang_1_1BinaryConditionalOperator.html">BinaryConditionalOperator</a>&gt;...</td></tr>
 <tr><td colspan="4" class="doc" id="binaryConditionalOperator0"><pre>Matches binary conditional operator expressions (GNU extension).
 
@@ -5222,8 +5234,8 @@ actual casts "explicit" casts.)
 </pre></td></tr>
 
 
-<tr><td>Matcher&lt;<a href="http://clang.llvm.org/doxygen/classclang_1_1Expr.html">Expr</a>&gt;</td><td class="name" onclick="toggle('hasType3')"><a name="hasType3Anchor">hasType</a></td><td>Matcher&lt;<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>&gt; InnerMatcher</td></tr>
-<tr><td colspan="4" class="doc" id="hasType3"><pre>Overloaded to match the declaration of the expression's or value
+<tr><td>Matcher&lt;<a href="http://clang.llvm.org/doxygen/classclang_1_1Expr.html">Expr</a>&gt;</td><td class="name" onclick="toggle('hasType4')"><a name="hasType4Anchor">hasType</a></td><td>Matcher&lt;<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>&gt; InnerMatcher</td></tr>
+<tr><td colspan="4" class="doc" id="hasType4"><pre>Overloaded to match the declaration of the expression's or value
 declaration's type.
 
 In case of a value declaration (for example a variable declaration),
@@ -5234,8 +5246,10 @@ declaration of x.
 
 Example matches x (matcher = expr(hasType(cxxRecordDecl(hasName("X")))))
             and z (matcher = varDecl(hasType(cxxRecordDecl(hasName("X")))))
+            and friend class X (matcher = friendDecl(hasType("X"))
  class X {};
  void y(X &amp;x) { x; X z; }
+ class Y { friend class X; };
 
 Usable as: Matcher&lt;<a href="http://clang.llvm.org/doxygen/classclang_1_1Expr.html">Expr</a>&gt;, Matcher&lt;<a href="http://clang.llvm.org/doxygen/classclang_1_1ValueDecl.html">ValueDecl</a>&gt;
 </pre></td></tr>
@@ -5248,9 +5262,11 @@ matcher.
 Example matches x (matcher = expr(hasType(cxxRecordDecl(hasName("X")))))
             and z (matcher = varDecl(hasType(cxxRecordDecl(hasName("X")))))
             and U (matcher = typedefDecl(hasType(asString("int")))
+            and friend class X (matcher = friendDecl(hasType("X"))
  class X {};
  void y(X &amp;x) { x; X z; }
  typedef int U;
+ class Y { friend class X; };
 </pre></td></tr>
 
 
@@ -5396,6 +5412,42 @@ matches 'int x = 0' in
 </pre></td></tr>
 
 
+<tr><td>Matcher&lt;<a href="http://clang.llvm.org/doxygen/classclang_1_1FriendDecl.html">FriendDecl</a>&gt;</td><td class="name" onclick="toggle('hasType5')"><a name="hasType5Anchor">hasType</a></td><td>Matcher&lt;<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>&gt; InnerMatcher</td></tr>
+<tr><td colspan="4" class="doc" id="hasType5"><pre>Overloaded to match the declaration of the expression's or value
+declaration's type.
+
+In case of a value declaration (for example a variable declaration),
+this resolves one layer of indirection. For example, in the value
+declaration "X x;", cxxRecordDecl(hasName("X")) matches the declaration of
+X, while varDecl(hasType(cxxRecordDecl(hasName("X")))) matches the
+declaration of x.
+
+Example matches x (matcher = expr(hasType(cxxRecordDecl(hasName("X")))))
+            and z (matcher = varDecl(hasType(cxxRecordDecl(hasName("X")))))
+            and friend class X (matcher = friendDecl(hasType("X"))
+ class X {};
+ void y(X &amp;x) { x; X z; }
+ class Y { friend class X; };
+
+Usable as: Matcher&lt;<a href="http://clang.llvm.org/doxygen/classclang_1_1Expr.html">Expr</a>&gt;, Matcher&lt;<a href="http://clang.llvm.org/doxygen/classclang_1_1ValueDecl.html">ValueDecl</a>&gt;
+</pre></td></tr>
+
+
+<tr><td>Matcher&lt;<a href="http://clang.llvm.org/doxygen/classclang_1_1FriendDecl.html">FriendDecl</a>&gt;</td><td class="name" onclick="toggle('hasType1')"><a name="hasType1Anchor">hasType</a></td><td>Matcher&lt;<a href="http://clang.llvm.org/doxygen/classclang_1_1QualType.html">QualType</a>&gt; InnerMatcher</td></tr>
+<tr><td colspan="4" class="doc" id="hasType1"><pre>Matches if the expression's or declaration's type matches a type
+matcher.
+
+Example matches x (matcher = expr(hasType(cxxRecordDecl(hasName("X")))))
+            and z (matcher = varDecl(hasType(cxxRecordDecl(hasName("X")))))
+            and U (matcher = typedefDecl(hasType(asString("int")))
+            and friend class X (matcher = friendDecl(hasType("X"))
+ class X {};
+ void y(X &amp;x) { x; X z; }
+ typedef int U;
+ class Y { friend class X; };
+</pre></td></tr>
+
+
 <tr><td>Matcher&lt;<a href="http://clang.llvm.org/doxygen/classclang_1_1FunctionDecl.html">FunctionDecl</a>&gt;</td><td class="name" onclick="toggle('hasAnyParameter0')"><a name="hasAnyParameter0Anchor">hasAnyParameter</a></td><td>Matcher&lt;<a href="http://clang.llvm.org/doxygen/classclang_1_1ParmVarDecl.html">ParmVarDecl</a>&gt; InnerMatcher</td></tr>
 <tr><td colspan="4" class="doc" id="hasAnyParameter0"><pre>Matches any parameter of a function or an ObjC method declaration or a
 block.
@@ -6432,16 +6484,18 @@ Usable as: Any Matcher
 </pre></td></tr>
 
 
-<tr><td>Matcher&lt;<a href="http://clang.llvm.org/doxygen/classclang_1_1TypedefNameDecl.html">TypedefNameDecl</a>&gt;</td><td class="name" onclick="toggle('hasType1')"><a name="hasType1Anchor">hasType</a></td><td>Matcher&lt;<a href="http://clang.llvm.org/doxygen/classclang_1_1QualType.html">QualType</a>&gt; InnerMatcher</td></tr>
-<tr><td colspan="4" class="doc" id="hasType1"><pre>Matches if the expression's or declaration's type matches a type
+<tr><td>Matcher&lt;<a href="http://clang.llvm.org/doxygen/classclang_1_1TypedefNameDecl.html">TypedefNameDecl</a>&gt;</td><td class="name" onclick="toggle('hasType2')"><a name="hasType2Anchor">hasType</a></td><td>Matcher&lt;<a href="http://clang.llvm.org/doxygen/classclang_1_1QualType.html">QualType</a>&gt; InnerMatcher</td></tr>
+<tr><td colspan="4" class="doc" id="hasType2"><pre>Matches if the expression's or declaration's type matches a type
 matcher.
 
 Example matches x (matcher = expr(hasType(cxxRecordDecl(hasName("X")))))
             and z (matcher = varDecl(hasType(cxxRecordDecl(hasName("X")))))
             and U (matcher = typedefDecl(hasType(asString("int")))
+            and friend class X (matcher = friendDecl(hasType("X"))
  class X {};
  void y(X &amp;x) { x; X z; }
  typedef int U;
+ class Y { friend class X; };
 </pre></td></tr>
 
 
@@ -6564,8 +6618,8 @@ usingDecl(hasAnyUsingShadowDecl(hasTargetDecl(functionDecl())))
   matches using X::b but not using X::a </pre></td></tr>
 
 
-<tr><td>Matcher&lt;<a href="http://clang.llvm.org/doxygen/classclang_1_1ValueDecl.html">ValueDecl</a>&gt;</td><td class="name" onclick="toggle('hasType4')"><a name="hasType4Anchor">hasType</a></td><td>Matcher&lt;<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>&gt; InnerMatcher</td></tr>
-<tr><td colspan="4" class="doc" id="hasType4"><pre>Overloaded to match the declaration of the expression's or value
+<tr><td>Matcher&lt;<a href="http://clang.llvm.org/doxygen/classclang_1_1ValueDecl.html">ValueDecl</a>&gt;</td><td class="name" onclick="toggle('hasType6')"><a name="hasType6Anchor">hasType</a></td><td>Matcher&lt;<a href="http://clang.llvm.org/doxygen/classclang_1_1Decl.html">Decl</a>&gt; InnerMatcher</td></tr>
+<tr><td colspan="4" class="doc" id="hasType6"><pre>Overloaded to match the declaration of the expression's or value
 declaration's type.
 
 In case of a value declaration (for example a variable declaration),
@@ -6576,23 +6630,27 @@ declaration of x.
 
 Example matches x (matcher = expr(hasType(cxxRecordDecl(hasName("X")))))
             and z (matcher = varDecl(hasType(cxxRecordDecl(hasName("X")))))
+            and friend class X (matcher = friendDecl(hasType("X"))
  class X {};
  void y(X &amp;x) { x; X z; }
+ class Y { friend class X; };
 
 Usable as: Matcher&lt;<a href="http://clang.llvm.org/doxygen/classclang_1_1Expr.html">Expr</a>&gt;, Matcher&lt;<a href="http://clang.llvm.org/doxygen/classclang_1_1ValueDecl.html">ValueDecl</a>&gt;
 </pre></td></tr>
 
 
-<tr><td>Matcher&lt;<a href="http://clang.llvm.org/doxygen/classclang_1_1ValueDecl.html">ValueDecl</a>&gt;</td><td class="name" onclick="toggle('hasType2')"><a name="hasType2Anchor">hasType</a></td><td>Matcher&lt;<a href="http://clang.llvm.org/doxygen/classclang_1_1QualType.html">QualType</a>&gt; InnerMatcher</td></tr>
-<tr><td colspan="4" class="doc" id="hasType2"><pre>Matches if the expression's or declaration's type matches a type
+<tr><td>Matcher&lt;<a href="http://clang.llvm.org/doxygen/classclang_1_1ValueDecl.html">ValueDecl</a>&gt;</td><td class="name" onclick="toggle('hasType3')"><a name="hasType3Anchor">hasType</a></td><td>Matcher&lt;<a href="http://clang.llvm.org/doxygen/classclang_1_1QualType.html">QualType</a>&gt; InnerMatcher</td></tr>
+<tr><td colspan="4" class="doc" id="hasType3"><pre>Matches if the expression's or declaration's type matches a type
 matcher.
 
 Example matches x (matcher = expr(hasType(cxxRecordDecl(hasName("X")))))
             and z (matcher = varDecl(hasType(cxxRecordDecl(hasName("X")))))
             and U (matcher = typedefDecl(hasType(asString("int")))
+            and friend class X (matcher = friendDecl(hasType("X"))
  class X {};
  void y(X &amp;x) { x; X z; }
  typedef int U;
+ class Y { friend class X; };
 </pre></td></tr>