[PATCH] D124036: [clang-format] Don't skip PP lines if original line was a PP line when trying to merge lines

[Arthur Eubanks via Phabricator via cfe-commits]

aeubanks updated this revision to Diff 423923.
aeubanks added a comment.

take suggestion


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D124036/new/

https://reviews.llvm.org/D124036

Files:
  clang/lib/Format/UnwrappedLineFormatter.cpp
  clang/unittests/Format/FormatTest.cpp


Index: clang/unittests/Format/FormatTest.cpp
===================================================================
--- clang/unittests/Format/FormatTest.cpp
+++ clang/unittests/Format/FormatTest.cpp
@@ -13393,6 +13393,12 @@
                "    return 1;            \\\n"
                "  return 2;",
                ShortMergedIf);
+
+  verifyFormat("//\n"
+               "#define a \\\n"
+               "  if      \\\n"
+               "  0",
+               getChromiumStyle(FormatStyle::LK_Cpp));
 }
 
 TEST_F(FormatTest, FormatStarDependingOnContext) {
Index: clang/lib/Format/UnwrappedLineFormatter.cpp
===================================================================
--- clang/lib/Format/UnwrappedLineFormatter.cpp
+++ clang/lib/Format/UnwrappedLineFormatter.cpp
@@ -307,9 +307,13 @@
           // TODO: Use IndentTracker to avoid loop?
           // Find the last line with lower level.
           auto J = I - 1;
-          for (; J != AnnotatedLines.begin(); --J)
-            if (!(*J)->InPPDirective && (*J)->Level < TheLine->Level)
-              break;
+          if (!TheLine->InPPDirective) {
+            for (; J != AnnotatedLines.begin(); --J) {
+              if (!(*J)->InPPDirective && (*J)->Level < TheLine->Level)
+                break;
+            }
+          }
+
           if ((*J)->Level >= TheLine->Level)
             return false;
 



Index: clang/unittests/Format/FormatTest.cpp
===================================================================
--- clang/unittests/Format/FormatTest.cpp
+++ clang/unittests/Format/FormatTest.cpp
@@ -13393,6 +13393,12 @@
                "    return 1;            \\\n"
                "  return 2;",
                ShortMergedIf);
+
+  verifyFormat("//\n"
+               "#define a \\\n"
+               "  if      \\\n"
+               "  0",
+               getChromiumStyle(FormatStyle::LK_Cpp));
 }
 
 TEST_F(FormatTest, FormatStarDependingOnContext) {
Index: clang/lib/Format/UnwrappedLineFormatter.cpp
===================================================================
--- clang/lib/Format/UnwrappedLineFormatter.cpp
+++ clang/lib/Format/UnwrappedLineFormatter.cpp
@@ -307,9 +307,13 @@
           // TODO: Use IndentTracker to avoid loop?
           // Find the last line with lower level.
           auto J = I - 1;
-          for (; J != AnnotatedLines.begin(); --J)
-            if (!(*J)->InPPDirective && (*J)->Level < TheLine->Level)
-              break;
+          if (!TheLine->InPPDirective) {
+            for (; J != AnnotatedLines.begin(); --J) {
+              if (!(*J)->InPPDirective && (*J)->Level < TheLine->Level)
+                break;
+            }
+          }
+
           if ((*J)->Level >= TheLine->Level)
             return false;
 

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