[clang] Code implementing the SpacesInParensOptions.ExceptDoubleParentheses l… (PR #93439)

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llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-clang-format

Author: Owen Pan (owenca)

<details>
<summary>Changes</summary>

…ogic

---
Full diff: https://github.com/llvm/llvm-project/pull/93439.diff


1 Files Affected:

- (modified) clang/lib/Format/TokenAnnotator.cpp (+8) 


``````````diff
diff --git a/clang/lib/Format/TokenAnnotator.cpp b/clang/lib/Format/TokenAnnotator.cpp
index 7c4c76a91f2c5..c204d107b12b7 100644
--- a/clang/lib/Format/TokenAnnotator.cpp
+++ b/clang/lib/Format/TokenAnnotator.cpp
@@ -4346,6 +4346,14 @@ bool TokenAnnotator::spaceRequiredBetween(const AnnotatedLine &Line,
        Right.is(tok::r_brace) && Right.isNot(BK_Block))) {
     return Style.SpacesInParensOptions.InEmptyParentheses;
   }
+  if (Style.SpacesInParens == FormatStyle::SIPO_Custom &&
+      Style.SpacesInParensOptions.ExceptDoubleParentheses &&
+      ((Left.is(tok::l_paren) && Right.is(tok::l_paren)) ||
+       (Left.is(tok::r_paren) && Right.is(tok::r_paren)))) {
+    const auto *Tok = Left.MatchingParen;
+    if (Tok && Tok->Previous == Right.MatchingParen)
+      return false;
+  }
   if (Style.SpacesInParensOptions.InConditionalStatements) {
     const FormatToken *LeftParen = nullptr;
     if (Left.is(tok::l_paren))

``````````

</details>


https://github.com/llvm/llvm-project/pull/93439