[clang] 7117066 - [clang-format] Brace breaking for C# lambdas
Jonathan Coe via cfe-commits
cfe-commits at lists.llvm.org
Tue Jun 9 02:22:45 PDT 2020
Author: Jonathan Coe
Date: 2020-06-09T10:20:01+01:00
New Revision: 7117066bd6182f53ec9f97d2e5e81de27c2e0db0
URL: https://github.com/llvm/llvm-project/commit/7117066bd6182f53ec9f97d2e5e81de27c2e0db0
DIFF: https://github.com/llvm/llvm-project/commit/7117066bd6182f53ec9f97d2e5e81de27c2e0db0.diff
LOG: [clang-format] Brace breaking for C# lambdas
Reviewers: krasimir, MyDeveloperDay
Reviewed By: krasimir
Subscribers: cfe-commits
Tags: #clang-format, #clang
Differential Revision: https://reviews.llvm.org/D81394
Added:
Modified:
clang/lib/Format/UnwrappedLineParser.cpp
clang/unittests/Format/FormatTestCSharp.cpp
Removed:
################################################################################
diff --git a/clang/lib/Format/UnwrappedLineParser.cpp b/clang/lib/Format/UnwrappedLineParser.cpp
index b8da2c23b55a..0d488d1dda52 100644
--- a/clang/lib/Format/UnwrappedLineParser.cpp
+++ b/clang/lib/Format/UnwrappedLineParser.cpp
@@ -1459,8 +1459,14 @@ void UnwrappedLineParser::parseStructuralElement() {
// followed by a curly.
if (FormatTok->is(TT_JsFatArrow)) {
nextToken();
- if (FormatTok->is(tok::l_brace))
+ if (FormatTok->is(tok::l_brace)) {
+ // C# may break after => if the next character is a newline.
+ if (Style.isCSharp() && Style.BraceWrapping.AfterFunction == true) {
+ // calling `addUnwrappedLine()` here causes odd parsing errors.
+ FormatTok->MustBreakBefore = true;
+ }
parseChildBlock();
+ }
break;
}
diff --git a/clang/unittests/Format/FormatTestCSharp.cpp b/clang/unittests/Format/FormatTestCSharp.cpp
index 584b8aea383f..bcf2c7a52141 100644
--- a/clang/unittests/Format/FormatTestCSharp.cpp
+++ b/clang/unittests/Format/FormatTestCSharp.cpp
@@ -525,6 +525,33 @@ var x = foo(className, $@"some code:
EXPECT_EQ(Code, format(Code, Style));
}
+TEST_F(FormatTestCSharp, CSharpLambdas) {
+ FormatStyle GoogleStyle = getGoogleStyle(FormatStyle::LK_CSharp);
+ FormatStyle MicrosoftStyle = getMicrosoftStyle(FormatStyle::LK_CSharp);
+
+ verifyFormat(R"(//
+class MyClass {
+ Action<string> greet = name => {
+ string greeting = $"Hello {name}!";
+ Console.WriteLine(greeting);
+ };
+})",
+ GoogleStyle);
+
+ // Microsoft Style:
+ // https://docs.microsoft.com/en-us/dotnet/csharp/programming-guide/statements-expressions-operators/lambda-expressions#statement-lambdas
+ verifyFormat(R"(//
+class MyClass
+{
+ Action<string> greet = name =>
+ {
+ string greeting = $"Hello {name}!";
+ Console.WriteLine(greeting);
+ };
+})",
+ MicrosoftStyle);
+}
+
TEST_F(FormatTestCSharp, CSharpObjectInitializers) {
FormatStyle Style = getGoogleStyle(FormatStyle::LK_CSharp);
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