[PATCH] D111273: [clang-format-diff] Fix missing formatting for zero length git diff lines

[Zequan Wu via Phabricator via cfe-commits]

zequanwu updated this revision to Diff 378291.
zequanwu added a comment.

Fix the same error in git-clang-format.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D111273/new/

https://reviews.llvm.org/D111273

Files:
  clang/tools/clang-format/clang-format-diff.py
  clang/tools/clang-format/git-clang-format


Index: clang/tools/clang-format/git-clang-format
===================================================================
--- clang/tools/clang-format/git-clang-format
+++ clang/tools/clang-format/git-clang-format
@@ -321,8 +321,9 @@
       line_count = 1
       if match.group(3):
         line_count = int(match.group(3))
-      if line_count > 0:
-        matches.setdefault(filename, []).append(Range(start_line, line_count))
+      if line_count == 0:
+        line_count = 1
+      matches.setdefault(filename, []).append(Range(start_line, line_count))
   return matches
 
 
Index: clang/tools/clang-format/clang-format-diff.py
===================================================================
--- clang/tools/clang-format/clang-format-diff.py
+++ clang/tools/clang-format/clang-format-diff.py
@@ -90,9 +90,11 @@
       line_count = 1
       if match.group(3):
         line_count = int(match.group(3))
-      if line_count == 0:
-        continue
-      end_line = start_line + line_count - 1
+      # Also format lines range if line_count is 0 in case of deleting
+      # surrounding statements.
+      end_line = start_line
+      if line_count != 0:
+        end_line += line_count - 1
       lines_by_file.setdefault(filename, []).extend(
           ['-lines', str(start_line) + ':' + str(end_line)])
 


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