[clang-format] insert space after C# keyword var in var (key, value)

Reviewers: krasimir, MyDeveloperDay

Reviewed By: MyDeveloperDay

Subscribers: cfe-commits

Tags: #clang-format, #clang

Differential Revision: https://reviews.llvm.org/D79008

Author: jbcoe

clang/lib/Format/TokenAnnotator.cpp

@@ -3053,6 +3053,10 @@ bool TokenAnnotator::spaceRequiredBefore(const AnnotatedLine &Line,
     if (Left.is(TT_CSharpNullConditionalLSquare))
       return Style.SpacesInSquareBrackets;
 
+    // space after var in `var (key, value)`
+    if (Left.is(Keywords.kw_var) && Right.is(tok::l_paren))
+      return true;
+
     // space between keywords and paren e.g. "using ("
     if (Right.is(tok::l_paren))
       if (Left.isOneOf(tok::kw_using, Keywords.kw_async, Keywords.kw_when))

clang/unittests/Format/FormatTestCSharp.cpp

@@ -698,6 +698,7 @@ TEST_F(FormatTestCSharp, CSharpSpaces) {
   verifyFormat(R"(Result this[Index x] => Foo(x);)", Style);
 
   verifyFormat(R"(char[,,] rawCharArray = MakeCharacterGrid();)", Style);
+  verifyFormat(R"(var (key, value))", Style);
 
   // Not seen as a C-style cast.
   verifyFormat(R"(//