[PATCH] D138402: [clang-format] Correctly count a tab's width in a comment

[Björn Schäpers via Phabricator via cfe-commits]

This revision was landed with ongoing or failed builds.
This revision was automatically updated to reflect the committed changes.
Closed by commit rG1116ed2beb1c: [clang-format] Correctly count a tab's 
width in a comment (authored by HazardyKnusperkeks).

Changed prior to commit:
  https://reviews.llvm.org/D138402?vs=480597&id=539471#toc

Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D138402/new/

https://reviews.llvm.org/D138402

Files:
  clang/lib/Format/BreakableToken.cpp
  clang/unittests/Format/FormatTestComments.cpp


Index: clang/unittests/Format/FormatTestComments.cpp
===================================================================
--- clang/unittests/Format/FormatTestComments.cpp
+++ clang/unittests/Format/FormatTestComments.cpp
@@ -652,6 +652,11 @@
             "//: one line",
             format("//: A comment that doesn't fit on one line",
                    getLLVMStyleWithColumns(20)));
+
+  verifyFormat(
+      "//\t\t\t\tofMap(message.velocity, 0, 127, 0, ofGetWidth()\n"
+      "//* 0.2)",
+      "//\t\t\t\tofMap(message.velocity, 0, 127, 0, ofGetWidth() * 0.2)");
 }
 
 TEST_F(FormatTestComments, PreservesHangingIndentInCxxComments) {
Index: clang/lib/Format/BreakableToken.cpp
===================================================================
--- clang/lib/Format/BreakableToken.cpp
+++ clang/lib/Format/BreakableToken.cpp
@@ -82,9 +82,9 @@
        NumChars < MaxSplit && MaxSplitBytes < Text.size();) {
     unsigned BytesInChar =
         encoding::getCodePointNumBytes(Text[MaxSplitBytes], Encoding);
-    NumChars +=
-        encoding::columnWidthWithTabs(Text.substr(MaxSplitBytes, BytesInChar),
-                                      ContentStartColumn, TabWidth, Encoding);
+    NumChars += encoding::columnWidthWithTabs(
+        Text.substr(MaxSplitBytes, BytesInChar), ContentStartColumn + NumChars,
+        TabWidth, Encoding);
     MaxSplitBytes += BytesInChar;
   }
 



Index: clang/unittests/Format/FormatTestComments.cpp
===================================================================
--- clang/unittests/Format/FormatTestComments.cpp
+++ clang/unittests/Format/FormatTestComments.cpp
@@ -652,6 +652,11 @@
             "//: one line",
             format("//: A comment that doesn't fit on one line",
                    getLLVMStyleWithColumns(20)));
+
+  verifyFormat(
+      "//\t\t\t\tofMap(message.velocity, 0, 127, 0, ofGetWidth()\n"
+      "//* 0.2)",
+      "//\t\t\t\tofMap(message.velocity, 0, 127, 0, ofGetWidth() * 0.2)");
 }
 
 TEST_F(FormatTestComments, PreservesHangingIndentInCxxComments) {
Index: clang/lib/Format/BreakableToken.cpp
===================================================================
--- clang/lib/Format/BreakableToken.cpp
+++ clang/lib/Format/BreakableToken.cpp
@@ -82,9 +82,9 @@
        NumChars < MaxSplit && MaxSplitBytes < Text.size();) {
     unsigned BytesInChar =
         encoding::getCodePointNumBytes(Text[MaxSplitBytes], Encoding);
-    NumChars +=
-        encoding::columnWidthWithTabs(Text.substr(MaxSplitBytes, BytesInChar),
-                                      ContentStartColumn, TabWidth, Encoding);
+    NumChars += encoding::columnWidthWithTabs(
+        Text.substr(MaxSplitBytes, BytesInChar), ContentStartColumn + NumChars,
+        TabWidth, Encoding);
     MaxSplitBytes += BytesInChar;
   }
 

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