r195251 - Support for JavaScript === and !== operators.

[Alexander Kornienko]

Author: alexfh
Date: Wed Nov 20 08:30:26 2013
New Revision: 195251

URL: http://llvm.org/viewvc/llvm-project?rev=195251&view=rev
Log:
Support for JavaScript === and !== operators.

Reviewers: klimek, djasper

Reviewed By: klimek

CC: cfe-commits, klimek

Differential Revision: http://llvm-reviews.chandlerc.com/D2231

Modified:
    cfe/trunk/lib/Format/TokenAnnotator.cpp
    cfe/trunk/unittests/Format/FormatTest.cpp

Modified: cfe/trunk/lib/Format/TokenAnnotator.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Format/TokenAnnotator.cpp?rev=195251&r1=195250&r2=195251&view=diff
==============================================================================
--- cfe/trunk/lib/Format/TokenAnnotator.cpp (original)
+++ cfe/trunk/lib/Format/TokenAnnotator.cpp Wed Nov 20 08:30:26 2013
@@ -1363,6 +1363,10 @@ bool TokenAnnotator::spaceRequiredBefore
   if (Tok.isOneOf(tok::arrowstar, tok::periodstar) ||
       Tok.Previous->isOneOf(tok::arrowstar, tok::periodstar))
     return false;
+  // JavaScript identity operators ===, !==.
+  if (Tok.Previous->isOneOf(tok::equalequal, tok::exclaimequal) &&
+      Tok.is(tok::equal))
+    return false;
   if (!Style.SpaceBeforeAssignmentOperators &&
       Tok.getPrecedence() == prec::Assignment)
     return false;
@@ -1452,6 +1456,9 @@ bool TokenAnnotator::canBreakBefore(cons
     return false;
   if (Left.is(tok::equal) && Line.Type == LT_VirtualFunctionDecl)
     return false;
+  // JavaScript identity operators ===, !==.
+  if (Left.isOneOf(tok::equalequal, tok::exclaimequal) && Right.is(tok::equal))
+    return false;
   if (Left.Previous) {
     if (Left.is(tok::l_paren) && Right.is(tok::l_paren) &&
         Left.Previous->is(tok::kw___attribute))

Modified: cfe/trunk/unittests/Format/FormatTest.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/unittests/Format/FormatTest.cpp?rev=195251&r1=195250&r2=195251&view=diff
==============================================================================
--- cfe/trunk/unittests/Format/FormatTest.cpp (original)
+++ cfe/trunk/unittests/Format/FormatTest.cpp Wed Nov 20 08:30:26 2013
@@ -7309,5 +7309,13 @@ TEST_F(FormatTest, SpacesInAngles) {
   verifyFormat("A<A<int>>();", Spaces);
 }
 
+
+TEST_F(FormatTest, UnderstandsJavaScript) {
+  verifyFormat("a === b;");
+  verifyFormat("aaaaaaa === b;", getLLVMStyleWithColumns(10));
+  verifyFormat("a !== b;");
+  verifyFormat("aaaaaaa !== b;", getLLVMStyleWithColumns(10));
+}
+
 } // end namespace tooling
 } // end namespace clang