[clang] [clang-format] Add space after return type for block literal (PR #223355)

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llvmorg-github-actions[bot] wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-clang-format

Author: Tshaka Lekholoane (tshakalekholoane)

<details>
<summary>Changes</summary>



---
Full diff: https://github.com/llvm/llvm-project/pull/223355.diff


1 Files Affected:

- (modified) clang/lib/Format/TokenAnnotator.cpp (+11) 


``````````diff
diff --git a/clang/lib/Format/TokenAnnotator.cpp b/clang/lib/Format/TokenAnnotator.cpp
index 32ae8990f52c5..996705f1bdc6f 100644
--- a/clang/lib/Format/TokenAnnotator.cpp
+++ b/clang/lib/Format/TokenAnnotator.cpp
@@ -5044,6 +5044,17 @@ bool TokenAnnotator::spaceRequiredBetween(const AnnotatedLine &Line,
     return true;
   // Space before parentheses common for all languages
   if (Right.is(tok::l_paren)) {
+    // Space between the return type and the parameter list of an
+    // Objective-C/Blocks block literal that has an explicit return
+    // type, e.g. ^bool (int x) { ... }. Note that a block literal with
+    // no explicit return type, e.g. ^(int x) { ... }, is deliberately
+    // left alone: Left is the caret itself in that case, not an
+    // identifier.
+    if (BeforeLeft && BeforeLeft->is(tok::caret) &&
+        BeforeLeft->is(TT_UnaryOperator) &&
+        (Left.is(tok::identifier) || Left.isTypeName(LangOpts))) {
+      return true;
+    }
     // Function declaration or definition
     if (Line.MightBeFunctionDecl && Right.is(TT_FunctionDeclarationLParen)) {
       if (spaceRequiredBeforeParens(Right))

``````````

</details>


https://github.com/llvm/llvm-project/pull/223355