[llvm] [flang] [clang] [compiler-rt] [lldb] [mlir] [lld] [openmp] [libcxx] [clang-format] SpacesInSquareBrackets not working for Java (PR #77833)

[via cfe-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-clang-format

Author: MyDeveloperDay (mydeveloperday)

<details>
<summary>Changes</summary>

spaces in [] needs to be handled the same in Java the same as C#.


---
Full diff: https://github.com/llvm/llvm-project/pull/77833.diff


2 Files Affected:

- (modified) clang/lib/Format/TokenAnnotator.cpp (+4) 
- (modified) clang/unittests/Format/FormatTestJava.cpp (+15) 


``````````diff
diff --git a/clang/lib/Format/TokenAnnotator.cpp b/clang/lib/Format/TokenAnnotator.cpp
index b31ecc840626f9..d7db3ef0027218 100644
--- a/clang/lib/Format/TokenAnnotator.cpp
+++ b/clang/lib/Format/TokenAnnotator.cpp
@@ -4674,6 +4674,10 @@ bool TokenAnnotator::spaceRequiredBefore(const AnnotatedLine &Line,
   } else if (Style.Language == FormatStyle::LK_Java) {
     if (Left.is(tok::r_square) && Right.is(tok::l_brace))
       return true;
+    // spaces inside square brackets.
+    if (Left.is(tok::l_square) || Right.is(tok::r_square))
+      return Style.SpacesInSquareBrackets;
+
     if (Left.is(Keywords.kw_synchronized) && Right.is(tok::l_paren)) {
       return Style.SpaceBeforeParensOptions.AfterControlStatements ||
              spaceRequiredBeforeParens(Right);
diff --git a/clang/unittests/Format/FormatTestJava.cpp b/clang/unittests/Format/FormatTestJava.cpp
index 202d603d057790..6da5f4fa254331 100644
--- a/clang/unittests/Format/FormatTestJava.cpp
+++ b/clang/unittests/Format/FormatTestJava.cpp
@@ -603,6 +603,21 @@ TEST_F(FormatTestJava, ShortFunctions) {
                Style);
 }
 
+TEST_F(FormatTestJava, ConfigurableSpacesInSquareBrackets) {
+  FormatStyle Spaces = getLLVMStyle(FormatStyle::LK_Java);
+
+  verifyFormat("Object[] arguments", Spaces);
+  verifyFormat("final Class<?>[] types = new Class<?>[numElements];", Spaces);
+  verifyFormat("types[i] = arguments[i].getClass();", Spaces);
+
+  Spaces.SpacesInSquareBrackets = true;
+
+  verifyFormat("Object[ ] arguments", Spaces);
+  verifyFormat("final Class<?>[ ] types = new Class<?>[ numElements ];",
+               Spaces);
+  verifyFormat("types[ i ] = arguments[ i ].getClass();", Spaces);
+}
+
 } // namespace
 } // namespace test
 } // namespace format

``````````

</details>


https://github.com/llvm/llvm-project/pull/77833