Improve the AST representation of Objective-C @try/@catch/@finally

statements. Instead of the @try having a single @catch, where all of
the @catch's were chained (using an O(n^2) algorithm nonetheless),
@try just holds an array of its @catch blocks. The resulting AST is
slightly more compact (not important) and better represents the actual
language semantics (good).

llvm-svn: 102221

1 files changed, 2 insertions, 5 deletions

diff --git a/clang/lib/AST/StmtPrinter.cpp b/clang/lib/AST/StmtPrinter.cpp
index a895b63a79c..3996528287d 100644
--- a/clang/lib/AST/StmtPrinter.cpp
+++ b/clang/lib/AST/StmtPrinter.cpp
@@ -388,11 +388,8 @@ void StmtPrinter::VisitObjCAtTryStmt(ObjCAtTryStmt *Node) {
     OS << "\n";
   }
 
-  for (ObjCAtCatchStmt *catchStmt =
-         static_cast<ObjCAtCatchStmt *>(Node->getCatchStmts());
-       catchStmt;
-       catchStmt =
-         static_cast<ObjCAtCatchStmt *>(catchStmt->getNextCatchStmt())) {
+  for (unsigned I = 0, N = Node->getNumCatchStmts(); I != N; ++I) {
+    ObjCAtCatchStmt *catchStmt = Node->getCatchStmt(I);
     Indent() << "@catch(";
     if (catchStmt->getCatchParamDecl()) {
       if (Decl *DS = catchStmt->getCatchParamDecl())