koalo updated this revision to Diff 229298.
koalo added a comment.
Rebased to current master
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D54628/new/
https://reviews.llvm.org/D54628
Files:
clang/docs/ClangFormatStyleOptions.rst
clang/include/clang/Format/Format.h
clang/lib/Format/Format.cpp
clang/lib/Format/TokenAnnotator.cpp
clang/unittests/Format/FormatTest.cpp
Index: clang/unittests/Format/FormatTest.cpp
===================================================================
--- clang/unittests/Format/FormatTest.cpp
+++ clang/unittests/Format/FormatTest.cpp
@@ -1798,6 +1798,24 @@
verifyFormat("enum ShortEnum { A, B, C };");
verifyGoogleFormat("enum ShortEnum { A, B, C };");
+ FormatStyle Style = getLLVMStyle();
+ Style.AllowShortEnumsOnASingleLine = false;
+ verifyFormat("enum Enum {\n"
+ "};",Style);
+ verifyFormat("enum {\n"
+ "};",Style);
+ verifyFormat("enum X E {\n"
+ "} d;",Style);
+ verifyFormat("enum __attribute__((...)) E {\n"
+ "} d;",Style);
+ verifyFormat("enum __declspec__((...)) E {\n"
+ "} d;",Style);
+ verifyFormat("enum ShortEnum {\n"
+ " A,\n"
+ " B,\n"
+ " C\n"
+ "};",Style);
+
EXPECT_EQ("enum KeepEmptyLines {\n"
" ONE,\n"
"\n"
@@ -1866,6 +1884,19 @@
verifyFormat("enum struct __attribute__((...)) E {} d;");
verifyFormat("enum struct __declspec__((...)) E {} d;");
verifyFormat("enum struct X f() {\n a();\n return 42;\n}");
+
+ FormatStyle Style = getLLVMStyle();
+ Style.AllowShortEnumsOnASingleLine = false;
+ verifyFormat("enum struct Enum {\n"
+ "};",Style);
+ verifyFormat("enum struct {\n"
+ "};",Style);
+ verifyFormat("enum struct X E {\n"
+ "} d;",Style);
+ verifyFormat("enum struct __attribute__((...)) E {\n"
+ "} d;",Style);
+ verifyFormat("enum struct __declspec__((...)) E {\n"
+ "} d;",Style);
}
TEST_F(FormatTest, FormatsEnumClass) {
@@ -1883,6 +1914,19 @@
verifyFormat("enum class __attribute__((...)) E {} d;");
verifyFormat("enum class __declspec__((...)) E {} d;");
verifyFormat("enum class X f() {\n a();\n return 42;\n}");
+
+ FormatStyle Style = getLLVMStyle();
+ Style.AllowShortEnumsOnASingleLine = false;
+ verifyFormat("enum class Enum {\n"
+ "};",Style);
+ verifyFormat("enum class {\n"
+ "};",Style);
+ verifyFormat("enum class X E {\n"
+ "} d;",Style);
+ verifyFormat("enum class __attribute__((...)) E {\n"
+ "} d;",Style);
+ verifyFormat("enum class __declspec__((...)) E {\n"
+ "} d;",Style);
}
TEST_F(FormatTest, FormatsEnumTypes) {
@@ -1892,6 +1936,17 @@
"};");
verifyFormat("enum X : int { A, B };");
verifyFormat("enum X : std::uint32_t { A, B };");
+
+ FormatStyle Style = getLLVMStyle();
+ Style.AllowShortEnumsOnASingleLine = false;
+ verifyFormat("enum X : int {\n"
+ " A,\n"
+ " B\n"
+ "};",Style);
+ verifyFormat("enum X : std::uint32_t {\n"
+ " A,\n"
+ " B\n"
+ "};",Style);
}
TEST_F(FormatTest, FormatsTypedefEnum) {
@@ -1918,6 +1973,16 @@
" THREE = 3\n"
"} LongEnum;",
Style);
+
+ Style = getLLVMStyle();
+ Style.AllowShortEnumsOnASingleLine = false;
+ verifyFormat("typedef enum {\n"
+ "} EmptyEnum;",Style);
+ verifyFormat("typedef enum {\n"
+ " A,\n"
+ " B,\n"
+ " C\n"
+ "} ShortEnum;",Style);
}
TEST_F(FormatTest, FormatsNSEnums) {
Index: clang/lib/Format/TokenAnnotator.cpp
===================================================================
--- clang/lib/Format/TokenAnnotator.cpp
+++ clang/lib/Format/TokenAnnotator.cpp
@@ -3106,6 +3106,10 @@
}
if (Right.is(TT_InlineASMBrace))
return Right.HasUnescapedNewline;
+ if (isAllmanBrace(Left) && !Style.AllowShortEnumsOnASingleLine &&
+ (Line.startsWith(tok::kw_enum) ||
+ Line.startsWith(tok::kw_typedef, tok::kw_enum)))
+ return true;
if (isAllmanBrace(Left) || isAllmanBrace(Right))
return (Line.startsWith(tok::kw_enum) && Style.BraceWrapping.AfterEnum) ||
(Line.startsWith(tok::kw_typedef, tok::kw_enum) &&
Index: clang/lib/Format/Format.cpp
===================================================================
--- clang/lib/Format/Format.cpp
+++ clang/lib/Format/Format.cpp
@@ -401,6 +401,8 @@
Style.AllowShortIfStatementsOnASingleLine);
IO.mapOptional("AllowShortLoopsOnASingleLine",
Style.AllowShortLoopsOnASingleLine);
+ IO.mapOptional("AllowShortEnumsOnASingleLine",
+ Style.AllowShortEnumsOnASingleLine);
IO.mapOptional("AlwaysBreakAfterDefinitionReturnType",
Style.AlwaysBreakAfterDefinitionReturnType);
IO.mapOptional("AlwaysBreakAfterReturnType",
@@ -734,6 +736,7 @@
LLVMStyle.AllowShortIfStatementsOnASingleLine = FormatStyle::SIS_Never;
LLVMStyle.AllowShortLambdasOnASingleLine = FormatStyle::SLS_All;
LLVMStyle.AllowShortLoopsOnASingleLine = false;
+ LLVMStyle.AllowShortEnumsOnASingleLine = true;
LLVMStyle.AlwaysBreakAfterReturnType = FormatStyle::RTBS_None;
LLVMStyle.AlwaysBreakAfterDefinitionReturnType = FormatStyle::DRTBS_None;
LLVMStyle.AlwaysBreakBeforeMultilineStrings = false;
Index: clang/include/clang/Format/Format.h
===================================================================
--- clang/include/clang/Format/Format.h
+++ clang/include/clang/Format/Format.h
@@ -383,6 +383,9 @@
/// line.
bool AllowShortLoopsOnASingleLine;
+ /// If ``true``, ``enum {A, B, C};`` can be put on a single line.
+ bool AllowShortEnumsOnASingleLine;
+
/// Different ways to break after the function definition return type.
/// This option is **deprecated** and is retained for backwards compatibility.
enum DefinitionReturnTypeBreakingStyle {
Index: clang/docs/ClangFormatStyleOptions.rst
===================================================================
--- clang/docs/ClangFormatStyleOptions.rst
+++ clang/docs/ClangFormatStyleOptions.rst
@@ -537,6 +537,11 @@
If ``true``, ``while (true) continue;`` can be put on a single
line.
+**AllowShortEnumsOnASingleLine** (``bool``)
+ Allows contracting enums to a single line.
+
+ E.g., this allows ``enum {A, B, C};`` to be put on a single line.
+
**AlwaysBreakAfterDefinitionReturnType** (``DefinitionReturnTypeBreakingStyle``)
The function definition return type breaking style to use. This
option is **deprecated** and is retained for backwards compatibility.
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