clang-format: [JS] do not clean up duplicated commas.
Summary:
In JavaScript, duplicated commas have semantic meaning.
x = [a,,b];
The statement above creates an array with three entries, the middle being undefined. Because clang-format should not change semantics, disable this cleanup in JS.
Reviewers: djasper
Subscribers: klimek
Differential Revision: https://reviews.llvm.org/D33641
llvm-svn: 304141
diff --git a/clang/lib/Format/Format.cpp b/clang/lib/Format/Format.cpp
index 4fa0012..2ef6516 100644
--- a/clang/lib/Format/Format.cpp
+++ b/clang/lib/Format/Format.cpp
@@ -1910,6 +1910,9 @@
tooling::Replacements cleanup(const FormatStyle &Style, StringRef Code,
ArrayRef<tooling::Range> Ranges,
StringRef FileName) {
+ // cleanups only apply to C++ (they mostly concern ctor commas etc.)
+ if (Style.Language != FormatStyle::LK_Cpp)
+ return tooling::Replacements();
std::unique_ptr<Environment> Env =
Environment::CreateVirtualEnvironment(Code, FileName, Ranges);
Cleaner Clean(*Env, Style);