[analyzer] CheckerDocumentation: Change examples for PreStmt and PostStmt.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167339 91177308-0d34-0410-b5e6-96231b3b80d8

lib/StaticAnalyzer/Checkers/CheckerDocumentation.cpp

@@ -33,8 +33,8 @@ namespace ento {
 /// checking.
 ///
 /// \sa CheckerContext
-class CheckerDocumentation : public Checker< check::PreStmt<DeclStmt>,
-                                       check::PostStmt<CallExpr>,
+class CheckerDocumentation : public Checker< check::PreStmt<ReturnStmt>,
+                                       check::PostStmt<DeclStmt>,
                                        check::PreObjCMessage,
                                        check::PostObjCMessage,
                                        check::PreCall,
@@ -64,8 +64,8 @@ public:
   /// See checkBranchCondition() callback for performing custom processing of
   /// the branching statements.
   ///
-  /// check::PreStmt<DeclStmt>
-  void checkPreStmt(const DeclStmt *DS, CheckerContext &C) const {}
+  /// check::PreStmt<ReturnStmt>
+  void checkPreStmt(const ReturnStmt *DS, CheckerContext &C) const {}
 
   /// \brief Post-visit the Statement.
   ///
@@ -74,8 +74,8 @@ public:
   /// which does not include the control flow statements such as IfStmt. The
   /// callback can be specialized to be called with any subclass of Stmt.
   ///
-  /// check::PostStmt<CallExpr>
-  void checkPostStmt(const CallExpr *DS, CheckerContext &C) const;
+  /// check::PostStmt<DeclStmt>
+  void checkPostStmt(const DeclStmt *DS, CheckerContext &C) const;
 
   /// \brief Pre-visit the Objective C message.
   ///
@@ -98,8 +98,8 @@ public:
   /// behavior for functions and methods no matter how they are being invoked.
   ///
   /// Note that this includes ALL cross-body invocations, so if you want to
-  /// limit your checks to, say, function calls, you can either test for that
-  /// or fall back to the explicit callback (i.e. check::PreStmt).
+  /// limit your checks to, say, function calls, you should test for that at the
+  /// beginning of your callback function.
   ///
   /// check::PreCall
   void checkPreCall(const CallEvent &Call, CheckerContext &C) const {}
@@ -256,7 +256,7 @@ public:
 
 };
 
-void CheckerDocumentation::checkPostStmt(const CallExpr *DS,
+void CheckerDocumentation::checkPostStmt(const DeclStmt *DS,
                                          CheckerContext &C) const {
   return;
 }