Remove the trailing whitespace of formatted lines.

So far, clang-format has always assumed the whitespace belonging to the
subsequent token. This has the negative side-effect that when
clang-format formats a line, it does not remove its trailing whitespace,
as it belongs to the next token.

Thus, this patch fixes most of llvm.org/PR15062.

We are not zapping a file's trailing whitespace so far, as this does not
belong to any token we see during formatting. We need to fix this in a
subsequent patch.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175152 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 4 insertions, 0 deletions

diff --git a/unittests/Format/FormatTest.cpp b/unittests/Format/FormatTest.cpp
index e99aad7a8c..232cd6b98a 100644
--- a/unittests/Format/FormatTest.cpp
+++ b/unittests/Format/FormatTest.cpp
@@ -162,6 +162,10 @@ TEST_F(FormatTest, OnlyGeneratesNecessaryReplacements) {
   EXPECT_EQ(0, ReplacementCount);
 }
 
+TEST_F(FormatTest, RemovesTrailingWhitespaceOfFormattedLine) {
+  EXPECT_EQ("int a;\nint b;", format("int a; \nint b;", 0, 0, getLLVMStyle()));
+}
+
 //===----------------------------------------------------------------------===//
 // Tests for control statements.
 //===----------------------------------------------------------------------===//