From: Eli Friedman <eli.friedman@gmail.com>
Date: Sun, 14 Jun 2009 22:39:26 +0000 (+0000)
Subject: PR4391: Tweak -ast-print output to generate valid output for edge cases
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=7df71ac778e5918883c826fdb3fff7d0feffc677;p=clang

PR4391: Tweak -ast-print output to generate valid output for edge cases
like "int x = + +3;".



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@73356 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/AST/StmtPrinter.cpp b/lib/AST/StmtPrinter.cpp
index 710da63861..b300940824 100644
--- a/lib/AST/StmtPrinter.cpp
+++ b/lib/AST/StmtPrinter.cpp
@@ -643,7 +643,8 @@ void StmtPrinter::VisitUnaryOperator(UnaryOperator *Node) {
   if (!Node->isPostfix()) {
     OS << UnaryOperator::getOpcodeStr(Node->getOpcode());
     
-    // Print a space if this is an "identifier operator" like __real.
+    // Print a space if this is an "identifier operator" like __real, or if
+    // it might be concatenated incorrectly like '+'.
     switch (Node->getOpcode()) {
     default: break;
     case UnaryOperator::Real:
@@ -651,6 +652,11 @@ void StmtPrinter::VisitUnaryOperator(UnaryOperator *Node) {
     case UnaryOperator::Extension:
       OS << ' ';
       break;
+    case UnaryOperator::Plus:
+    case UnaryOperator::Minus:
+      if (isa<UnaryOperator>(Node->getSubExpr()))
+        OS << ' ';
+      break;
     }
   }
   PrintExpr(Node->getSubExpr());