disable one option in clang-format

some.diff

commit c4c7c2092c34d1524f4afea18743d36d3b1f8ec8 (HEAD -> clang-format-unset)
Author: Konrad Kleine <[email protected]>
Date:   Thu Mar 3 16:17:35 2022 +0000

    [clang-format] Allow AlignAfterOpenBracket to be disabled

diff --git a/clang/include/clang/Format/Format.h b/clang/include/clang/Format/Format.h
index d4e859f4decc..8275cc77e604 100644
--- a/clang/include/clang/Format/Format.h
+++ b/clang/include/clang/Format/Format.h
@@ -95,6 +95,9 @@ struct FormatStyle {
     ///  Note: This currently only applies to parentheses.
     /// \endwarning
     BAS_BlockIndent,
+    /// Turn off any change that would influence the aligning after open
+    /// brackets.
+    BAS_Disable
   };
 
   /// If ``true``, horizontally aligns arguments after an open bracket.
diff --git a/clang/lib/Format/ContinuationIndenter.cpp b/clang/lib/Format/ContinuationIndenter.cpp
index 93d409118128..a3dd64c3a84c 100644
--- a/clang/lib/Format/ContinuationIndenter.cpp
+++ b/clang/lib/Format/ContinuationIndenter.cpp
@@ -666,7 +666,8 @@ void ContinuationIndenter::addTokenOnCurrentLine(LineState &State, bool DryRun,
   if (Previous.is(TT_TemplateString) && Previous.opensScope())
     State.Stack.back().NoLineBreak = true;
 
-  if (Style.AlignAfterOpenBracket != FormatStyle::BAS_DontAlign &&
+  if (enabled(Style.AlignAfterOpenBracket) &&
+      Style.AlignAfterOpenBracket != FormatStyle::BAS_DontAlign &&
       !State.Stack.back().IsCSharpGenericTypeConstraint &&
       Previous.opensScope() && Previous.isNot(TT_ObjCMethodExpr) &&
       (Current.isNot(TT_LineComment) || Previous.is(BK_BracedInit))) {
@@ -1390,8 +1391,9 @@ void ContinuationIndenter::moveStatePastFakeLParens(LineState &State,
          PrecedenceLevel < prec::Assignment) &&
         (!Previous || Previous->isNot(tok::kw_return) ||
          (Style.Language != FormatStyle::LK_Java && PrecedenceLevel > 0)) &&
-        (Style.AlignAfterOpenBracket != FormatStyle::BAS_DontAlign ||
-         PrecedenceLevel != prec::Comma || Current.NestingLevel == 0)) {
+        (enabled(Style.AlignAfterOpenBracket) &&
+         (Style.AlignAfterOpenBracket != FormatStyle::BAS_DontAlign ||
+          PrecedenceLevel != prec::Comma || Current.NestingLevel == 0))) {
       NewParenState.Indent =
           std::max(std::max(State.Column, NewParenState.Indent),
                    State.Stack.back().LastSpace);
@@ -1421,6 +1423,7 @@ void ContinuationIndenter::moveStatePastFakeLParens(LineState &State,
     if (PrecedenceLevel > prec::Unknown)
       NewParenState.LastSpace = std::max(NewParenState.LastSpace, State.Column);
     if (PrecedenceLevel != prec::Conditional && !Current.is(TT_UnaryOperator) &&
+        enabled(Style.AlignAfterOpenBracket) &&
         Style.AlignAfterOpenBracket != FormatStyle::BAS_DontAlign)
       NewParenState.StartOfFunctionCall = State.Column;
 
diff --git a/clang/lib/Format/Format.cpp b/clang/lib/Format/Format.cpp
index 551d8cfe7ec1..d26d01299077 100644
--- a/clang/lib/Format/Format.cpp
+++ b/clang/lib/Format/Format.cpp
@@ -387,6 +387,7 @@ template <> struct ScalarEnumerationTraits<FormatStyle::BracketAlignmentStyle> {
     IO.enumCase(Value, "DontAlign", FormatStyle::BAS_DontAlign);
     IO.enumCase(Value, "AlwaysBreak", FormatStyle::BAS_AlwaysBreak);
     IO.enumCase(Value, "BlockIndent", FormatStyle::BAS_BlockIndent);
+    IO.enumCase(Value, "Disable", FormatStyle::BAS_Disable);
 
     // For backward compatibility.
     IO.enumCase(Value, "true", FormatStyle::BAS_Align);
@@ -929,6 +930,10 @@ template <> struct DocumentListTraits<std::vector<FormatStyle>> {
 namespace clang {
 namespace format {
 
+constexpr bool enabled(const BracketAlignmentStyle c) {
+  return c != FormatStyle::BAS_Disable;
+}
+
 const std::error_category &getParseCategory() {
   static const ParseErrorCategory C{};
   return C;
diff --git a/clang/lib/Format/TokenAnnotator.cpp b/clang/lib/Format/TokenAnnotator.cpp
index 70f92c26fa8d..3563d248fd71 100644
--- a/clang/lib/Format/TokenAnnotator.cpp
+++ b/clang/lib/Format/TokenAnnotator.cpp
@@ -2871,6 +2871,7 @@ unsigned TokenAnnotator::splitPenalty(const AnnotatedLine &Line,
   if (Left.is(tok::l_paren) && Style.PenaltyBreakOpenParenthesis != 0)
     return Style.PenaltyBreakOpenParenthesis;
   if (Left.is(tok::l_paren) && InFunctionDecl &&
+      enabled(Style.AlignAfterOpenBracket) &&
       Style.AlignAfterOpenBracket != FormatStyle::BAS_DontAlign)
     return 100;
   if (Left.is(tok::l_paren) && Left.Previous &&