[PATCH] D52021: Fix Bug 38926: don't merge short case labels if followed by a block
Owen Pan via Phabricator via cfe-commits
cfe-commits at lists.llvm.org
Wed Sep 19 20:13:24 PDT 2018
owenpan updated this revision to Diff 166216.
owenpan added a comment.
Simplified the fix and improved the test case.
Repository:
rC Clang
https://reviews.llvm.org/D52021
Files:
lib/Format/UnwrappedLineFormatter.cpp
unittests/Format/FormatTest.cpp
Index: unittests/Format/FormatTest.cpp
===================================================================
--- unittests/Format/FormatTest.cpp
+++ unittests/Format/FormatTest.cpp
@@ -1241,6 +1241,30 @@
" return false;\n"
"}",
Style));
+ Style.AllowShortCaseLabelsOnASingleLine = true;
+ Style.BreakBeforeBraces = FormatStyle::BS_Custom;
+ Style.BraceWrapping.AfterControlStatement = true;
+ EXPECT_EQ("switch (n)\n"
+ "{\n"
+ " case 0:\n"
+ " {\n"
+ " return false;\n"
+ " }\n"
+ " default:\n"
+ " {\n"
+ " return true;\n"
+ " }\n"
+ "}",
+ format("switch (n) {\n"
+ " case 0: {\n"
+ " return false;\n"
+ " }\n"
+ " default:\n"
+ " {\n"
+ " return true;\n"
+ " }\n"
+ "}",
+ Style));
}
TEST_F(FormatTest, FormatsLabels) {
Index: lib/Format/UnwrappedLineFormatter.cpp
===================================================================
--- lib/Format/UnwrappedLineFormatter.cpp
+++ lib/Format/UnwrappedLineFormatter.cpp
@@ -428,6 +428,8 @@
if (Limit == 0 || I + 1 == E ||
I[1]->First->isOneOf(tok::kw_case, tok::kw_default))
return 0;
+ if (I[0]->Last->is(tok::l_brace) || I[1]->First->is(tok::l_brace))
+ return 0;
unsigned NumStmts = 0;
unsigned Length = 0;
bool EndsWithComment = false;
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