Fixes handling of unbalances braces.

If we find an unexpected closing brace, we must not stop parsing, as
we'd otherwise not layout anything beyond that point.

If we find a structural error on the highest level we'll not re-indent
anyway, but we'll still want to format within unwrapped lines.

Needed to introduce a differentiation between an expected and unexpected
closing brace.

llvm-svn: 171666

1 files changed, 12 insertions, 5 deletions

diff --git a/clang/lib/Format/UnwrappedLineParser.cpp b/clang/lib/Format/UnwrappedLineParser.cpp
index 72b47503ee8..00710827c2a 100644
--- a/clang/lib/Format/UnwrappedLineParser.cpp
+++ b/clang/lib/Format/UnwrappedLineParser.cpp
@@ -84,13 +84,13 @@ bool UnwrappedLineParser::parse() {
 }
 
 bool UnwrappedLineParser::parseFile() {
-  bool Error = parseLevel();
+  bool Error = parseLevel(/*HasOpeningBrace=*/false);
   // Make sure to format the remaining tokens.
   addUnwrappedLine();
   return Error;
 }
 
-bool UnwrappedLineParser::parseLevel() {
+bool UnwrappedLineParser::parseLevel(bool HasOpeningBrace) {
   bool Error = false;
   do {
     switch (FormatTok.Tok.getKind()) {
@@ -103,8 +103,15 @@ bool UnwrappedLineParser::parseLevel() {
       addUnwrappedLine();
       break;
     case tok::r_brace:
-      // Stray '}' is an error.
-      return true;
+      if (HasOpeningBrace) {
+        return false;
+      } else {
+        // Stray '}' is an error.
+        Error = true;
+        nextToken();
+        addUnwrappedLine();
+      }
+      break;
     default:
       parseStatement();
       break;
@@ -120,7 +127,7 @@ bool UnwrappedLineParser::parseBlock(unsigned AddLevels) {
   addUnwrappedLine();
 
   Line.Level += AddLevels;
-  parseLevel();
+  parseLevel(/*HasOpeningBrace=*/true);
   Line.Level -= AddLevels;
 
   // FIXME: Add error handling.