Add ObjC exception statement AST matchers

Summary: Add AST matchers for Objective-C @throw, @try, @catch and @finally.

Reviewers: aaron.ballman, malcolm.parsons, alexshap, compnerd

Reviewed By: aaron.ballman

Subscribers: cfe-commits, klimek

Differential Revision: https://reviews.llvm.org/D39940

llvm-svn: 317992

1 files changed, 35 insertions, 0 deletions

diff --git a/clang/docs/LibASTMatchersReference.html b/clang/docs/LibASTMatchersReference.html
index 63ae085b0d3..4cddea86991 100644
--- a/clang/docs/LibASTMatchersReference.html
+++ b/clang/docs/LibASTMatchersReference.html
@@ -1225,6 +1225,24 @@ nullStmt()
 </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('objcCatchStmt0')"><a name="objcCatchStmt0Anchor">objcCatchStmt</a></td><td>Matcher&lt;<a href="http://clang.llvm.org/doxygen/classclang_1_1ObjCAtCatchStmt.html">ObjCAtCatchStmt</a>&gt;...</td></tr>
+<tr><td colspan="4" class="doc" id="objcCatchStmt0"><pre>Matches Objective-C @catch statements.
+
+Example matches @catch
+  @try {}
+  @catch (...) {}
+</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('objcFinallyStmt0')"><a name="objcFinallyStmt0Anchor">objcFinallyStmt</a></td><td>Matcher&lt;<a href="http://clang.llvm.org/doxygen/classclang_1_1ObjCAtFinallyStmt.html">ObjCAtFinallyStmt</a>&gt;...</td></tr>
+<tr><td colspan="4" class="doc" id="objcFinallyStmt0"><pre>Matches Objective-C @finally statements.
+
+Example matches @finally
+  @try {}
+  @finally {}
+</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('objcMessageExpr0')"><a name="objcMessageExpr0Anchor">objcMessageExpr</a></td><td>Matcher&lt;<a href="http://clang.llvm.org/doxygen/classclang_1_1ObjCMessageExpr.html">ObjCMessageExpr</a>&gt;...</td></tr>
 <tr><td colspan="4" class="doc" id="objcMessageExpr0"><pre>Matches ObjectiveC Message invocation expressions.
 
@@ -1236,6 +1254,23 @@ NSString's "alloc". This matcher should match both message sends.
 </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('objcThrowStmt0')"><a name="objcThrowStmt0Anchor">objcThrowStmt</a></td><td>Matcher&lt;<a href="http://clang.llvm.org/doxygen/classclang_1_1ObjCAtThrowStmt.html">ObjCAtThrowStmt</a>&gt;...</td></tr>
+<tr><td colspan="4" class="doc" id="objcThrowStmt0"><pre>Matches Objective-C @try statements.
+
+Example matches @throw
+  @throw obj;
+</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('objcTryStmt0')"><a name="objcTryStmt0Anchor">objcTryStmt</a></td><td>Matcher&lt;<a href="http://clang.llvm.org/doxygen/classclang_1_1ObjCAtTryStmt.html">ObjCAtTryStmt</a>&gt;...</td></tr>
+<tr><td colspan="4" class="doc" id="objcTryStmt0"><pre>Matches Objective-C @try statements.
+
+Example matches @try
+  @try {}
+  @catch (...) {}
+</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('opaqueValueExpr0')"><a name="opaqueValueExpr0Anchor">opaqueValueExpr</a></td><td>Matcher&lt;<a href="http://clang.llvm.org/doxygen/classclang_1_1OpaqueValueExpr.html">OpaqueValueExpr</a>&gt;...</td></tr>
 <tr><td colspan="4" class="doc" id="opaqueValueExpr0"><pre>Matches opaque value expressions. They are used as helpers
 to reference another expressions and can be met