russellmcc updated this revision to Diff 169288.
russellmcc added a comment.
Added suggested for loops to the test
https://reviews.llvm.org/D40988
Files:
docs/ClangFormatStyleOptions.rst
include/clang/Format/Format.h
lib/Format/ContinuationIndenter.cpp
lib/Format/Format.cpp
unittests/Format/FormatTest.cpp
Index: unittests/Format/FormatTest.cpp
===================================================================
--- unittests/Format/FormatTest.cpp
+++ unittests/Format/FormatTest.cpp
@@ -3808,6 +3808,191 @@
" aaaa(aaaa) {}"));
}
+TEST_F(FormatTest, AllowAllConstructorInitializersOnNextLine) {
+ FormatStyle Style = getLLVMStyle();
+ Style.BreakConstructorInitializers = FormatStyle::BCIS_BeforeComma;
+ Style.ColumnLimit = 60;
+ Style.ConstructorInitializerAllOnOneLineOrOnePerLine = true;
+ Style.AllowAllConstructorInitializersOnNextLine = true;
+ Style.BinPackParameters = false;
+
+ for (int i = 0; i < 4; ++i) {
+ // Test all combinations of parameters that should not have an effect.
+ Style.AllowAllParametersOfDeclarationOnNextLine = i & 1;
+ Style.AllowAllArgumentsOnNextLine = i & 2;
+
+ Style.AllowAllConstructorInitializersOnNextLine = true;
+ Style.BreakConstructorInitializers = FormatStyle::BCIS_BeforeComma;
+ verifyFormat("Constructor()\n"
+ " : aaaaaaaaaaaaaaaaaaaa(a), bbbbbbbbbbbbbbbbbbbbb(b) {}",
+ Style);
+ verifyFormat("Constructor() : a(a), b(b) {}", Style);
+
+ Style.AllowAllConstructorInitializersOnNextLine = false;
+ verifyFormat("Constructor()\n"
+ " : aaaaaaaaaaaaaaaaaaaa(a)\n"
+ " , bbbbbbbbbbbbbbbbbbbbb(b) {}",
+ Style);
+ verifyFormat("Constructor() : a(a), b(b) {}", Style);
+
+ Style.BreakConstructorInitializers = FormatStyle::BCIS_BeforeColon;
+ Style.AllowAllConstructorInitializersOnNextLine = true;
+ verifyFormat("Constructor()\n"
+ " : aaaaaaaaaaaaaaaaaaaa(a), bbbbbbbbbbbbbbbbbbbbb(b) {}",
+ Style);
+
+ Style.AllowAllConstructorInitializersOnNextLine = false;
+ verifyFormat("Constructor()\n"
+ " : aaaaaaaaaaaaaaaaaaaa(a),\n"
+ " bbbbbbbbbbbbbbbbbbbbb(b) {}",
+ Style);
+
+ Style.BreakConstructorInitializers = FormatStyle::BCIS_AfterColon;
+ Style.AllowAllConstructorInitializersOnNextLine = true;
+ verifyFormat("Constructor() :\n"
+ " aaaaaaaaaaaaaaaaaa(a), bbbbbbbbbbbbbbbbbbbbb(b) {}",
+ Style);
+
+ Style.AllowAllConstructorInitializersOnNextLine = false;
+ verifyFormat("Constructor() :\n"
+ " aaaaaaaaaaaaaaaaaa(a),\n"
+ " bbbbbbbbbbbbbbbbbbbbb(b) {}",
+ Style);
+ }
+
+ // Test interactions between AllowAllParametersOfDeclarationOnNextLine and
+ // AllowAllConstructorInitializersOnNextLine in all
+ // BreakConstructorInitializers modes
+ Style.BreakConstructorInitializers = FormatStyle::BCIS_BeforeComma;
+ Style.AllowAllParametersOfDeclarationOnNextLine = true;
+ Style.AllowAllConstructorInitializersOnNextLine = false;
+ verifyFormat("SomeClassWithALongName::Constructor(\n"
+ " int aaaaaaaaaaaaaaaaaaaaaaaa, int bbbbbbbbbbbbb)\n"
+ " : aaaaaaaaaaaaaaaaaaaa(a)\n"
+ " , bbbbbbbbbbbbbbbbbbbbb(b) {}",
+ Style);
+
+ Style.AllowAllConstructorInitializersOnNextLine = true;
+ verifyFormat("SomeClassWithALongName::Constructor(\n"
+ " int aaaaaaaaaaaaaaaaaaaaaaaa,\n"
+ " int bbbbbbbbbbbbb,\n"
+ " int cccccccccccccccc)\n"
+ " : aaaaaaaaaaaaaaaaaaaa(a), bbbbbbbbbbbbbbbbbbbbb(b) {}",
+ Style);
+
+ Style.AllowAllParametersOfDeclarationOnNextLine = false;
+ Style.AllowAllConstructorInitializersOnNextLine = false;
+ verifyFormat("SomeClassWithALongName::Constructor(\n"
+ " int aaaaaaaaaaaaaaaaaaaaaaaa,\n"
+ " int bbbbbbbbbbbbb)\n"
+ " : aaaaaaaaaaaaaaaaaaaa(a)\n"
+ " , bbbbbbbbbbbbbbbbbbbbb(b) {}",
+ Style);
+
+ Style.BreakConstructorInitializers = FormatStyle::BCIS_BeforeColon;
+
+ Style.AllowAllParametersOfDeclarationOnNextLine = true;
+ verifyFormat("SomeClassWithALongName::Constructor(\n"
+ " int aaaaaaaaaaaaaaaaaaaaaaaa, int bbbbbbbbbbbbb)\n"
+ " : aaaaaaaaaaaaaaaaaaaa(a),\n"
+ " bbbbbbbbbbbbbbbbbbbbb(b) {}",
+ Style);
+
+ Style.AllowAllConstructorInitializersOnNextLine = true;
+ verifyFormat("SomeClassWithALongName::Constructor(\n"
+ " int aaaaaaaaaaaaaaaaaaaaaaaa,\n"
+ " int bbbbbbbbbbbbb,\n"
+ " int cccccccccccccccc)\n"
+ " : aaaaaaaaaaaaaaaaaaaa(a), bbbbbbbbbbbbbbbbbbbbb(b) {}",
+ Style);
+
+ Style.AllowAllParametersOfDeclarationOnNextLine = false;
+ Style.AllowAllConstructorInitializersOnNextLine = false;
+ verifyFormat("SomeClassWithALongName::Constructor(\n"
+ " int aaaaaaaaaaaaaaaaaaaaaaaa,\n"
+ " int bbbbbbbbbbbbb)\n"
+ " : aaaaaaaaaaaaaaaaaaaa(a),\n"
+ " bbbbbbbbbbbbbbbbbbbbb(b) {}",
+ Style);
+
+ Style.BreakConstructorInitializers = FormatStyle::BCIS_AfterColon;
+ Style.AllowAllParametersOfDeclarationOnNextLine = true;
+ verifyFormat("SomeClassWithALongName::Constructor(\n"
+ " int aaaaaaaaaaaaaaaaaaaaaaaa, int bbbbbbbbbbbbb) :\n"
+ " aaaaaaaaaaaaaaaaaaaa(a),\n"
+ " bbbbbbbbbbbbbbbbbbbbb(b) {}",
+ Style);
+
+ Style.AllowAllConstructorInitializersOnNextLine = true;
+ verifyFormat("SomeClassWithALongName::Constructor(\n"
+ " int aaaaaaaaaaaaaaaaaaaaaaaa,\n"
+ " int bbbbbbbbbbbbb,\n"
+ " int cccccccccccccccc) :\n"
+ " aaaaaaaaaaaaaaaaaaaa(a), bbbbbbbbbbbbbbbbbbbbb(b) {}",
+ Style);
+
+ Style.AllowAllParametersOfDeclarationOnNextLine = false;
+ Style.AllowAllConstructorInitializersOnNextLine = false;
+ verifyFormat("SomeClassWithALongName::Constructor(\n"
+ " int aaaaaaaaaaaaaaaaaaaaaaaa,\n"
+ " int bbbbbbbbbbbbb) :\n"
+ " aaaaaaaaaaaaaaaaaaaa(a),\n"
+ " bbbbbbbbbbbbbbbbbbbbb(b) {}",
+ Style);
+}
+
+TEST_F(FormatTest, AllowAllArgumentsOnNextLine) {
+ FormatStyle Style = getLLVMStyle();
+ Style.ColumnLimit = 60;
+ Style.BinPackArguments = false;
+ for (int i = 0; i < 4; ++i) {
+ // Test all combinations of parameters that should not have an effect.
+ Style.AllowAllParametersOfDeclarationOnNextLine = i & 1;
+ Style.AllowAllConstructorInitializersOnNextLine = i & 2;
+
+ Style.AllowAllArgumentsOnNextLine = true;
+ verifyFormat("void foo() {\n"
+ " FunctionCallWithReallyLongName(\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaa, bbbbbbbbbbbb);\n"
+ "}",
+ Style);
+ Style.AllowAllArgumentsOnNextLine = false;
+ verifyFormat("void foo() {\n"
+ " FunctionCallWithReallyLongName(\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaa,\n"
+ " bbbbbbbbbbbb);\n"
+ "}",
+ Style);
+
+ Style.AllowAllArgumentsOnNextLine = true;
+ verifyFormat("void foo() {\n"
+ " auto VariableWithReallyLongName = {\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaa, bbbbbbbbbbbb};\n"
+ "}",
+ Style);
+ Style.AllowAllArgumentsOnNextLine = false;
+ verifyFormat("void foo() {\n"
+ " auto VariableWithReallyLongName = {\n"
+ " aaaaaaaaaaaaaaaaaaaaaaaaaaa,\n"
+ " bbbbbbbbbbbb};\n"
+ "}",
+ Style);
+ }
+
+ // This parameter should not affect declarations.
+ Style.BinPackParameters = false;
+ Style.AllowAllArgumentsOnNextLine = false;
+ Style.AllowAllParametersOfDeclarationOnNextLine = true;
+ verifyFormat("void FunctionCallWithReallyLongName(\n"
+ " int aaaaaaaaaaaaaaaaaaaaaaa, int bbbbbbbbbbbb);",
+ Style);
+ Style.AllowAllParametersOfDeclarationOnNextLine = false;
+ verifyFormat("void FunctionCallWithReallyLongName(\n"
+ " int aaaaaaaaaaaaaaaaaaaaaaa,\n"
+ " int bbbbbbbbbbbb);",
+ Style);
+}
+
TEST_F(FormatTest, BreakConstructorInitializersAfterColon) {
FormatStyle Style = getLLVMStyle();
Style.BreakConstructorInitializers = FormatStyle::BCIS_AfterColon;
@@ -3825,17 +4010,23 @@
verifyFormat("template <typename T>\n"
"Constructor() : Initializer(FitsOnTheLine) {}",
getStyleWithColumns(Style, 50));
+ Style.ConstructorInitializerAllOnOneLineOrOnePerLine = true;
+ verifyFormat(
+ "SomeClass::Constructor() :\n"
+ " aaaaaaaaaaaaa(aaaaaaaaaaaaaa), aaaaaaaaaaaaaaa(aaaaaaaaaaaa) {}",
+ Style);
+ Style.ConstructorInitializerAllOnOneLineOrOnePerLine = false;
verifyFormat(
"SomeClass::Constructor() :\n"
" aaaaaaaaaaaaa(aaaaaaaaaaaaaa), aaaaaaaaaaaaaaa(aaaaaaaaaaaa) {}",
- Style);
+ Style);
verifyFormat(
"SomeClass::Constructor() :\n"
" aaaaaaaaaaaaa(aaaaaaaaaaaaaa), aaaaaaaaaaaaa(aaaaaaaaaaaaaa),\n"
" aaaaaaaaaaaaa(aaaaaaaaaaaaaa) {}",
- Style);
+ Style);
verifyFormat(
"SomeClass::Constructor() :\n"
" aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa),\n"
@@ -3881,7 +4072,7 @@
FormatStyle OnePerLine = Style;
OnePerLine.ConstructorInitializerAllOnOneLineOrOnePerLine = true;
- OnePerLine.AllowAllParametersOfDeclarationOnNextLine = false;
+ OnePerLine.AllowAllConstructorInitializersOnNextLine = false;
verifyFormat("SomeClass::Constructor() :\n"
" aaaaaaaaaaaaa(aaaaaaaaaaaaaa),\n"
" aaaaaaaaaaaaa(aaaaaaaaaaaaaa),\n"
@@ -10856,6 +11047,8 @@
CHECK_PARSE_BOOL(AlignTrailingComments);
CHECK_PARSE_BOOL(AlignConsecutiveAssignments);
CHECK_PARSE_BOOL(AlignConsecutiveDeclarations);
+ CHECK_PARSE_BOOL(AllowAllArgumentsOnNextLine);
+ CHECK_PARSE_BOOL(AllowAllConstructorInitializersOnNextLine);
CHECK_PARSE_BOOL(AllowAllParametersOfDeclarationOnNextLine);
CHECK_PARSE_BOOL(AllowShortBlocksOnASingleLine);
CHECK_PARSE_BOOL(AllowShortCaseLabelsOnASingleLine);
Index: lib/Format/Format.cpp
===================================================================
--- lib/Format/Format.cpp
+++ lib/Format/Format.cpp
@@ -321,6 +321,10 @@
IO.mapOptional("AlignEscapedNewlines", Style.AlignEscapedNewlines);
IO.mapOptional("AlignOperands", Style.AlignOperands);
IO.mapOptional("AlignTrailingComments", Style.AlignTrailingComments);
+ IO.mapOptional("AllowAllArgumentsOnNextLine",
+ Style.AllowAllArgumentsOnNextLine);
+ IO.mapOptional("AllowAllConstructorInitializersOnNextLine",
+ Style.AllowAllConstructorInitializersOnNextLine);
IO.mapOptional("AllowAllParametersOfDeclarationOnNextLine",
Style.AllowAllParametersOfDeclarationOnNextLine);
IO.mapOptional("AllowShortBlocksOnASingleLine",
@@ -337,6 +341,7 @@
Style.AlwaysBreakAfterDefinitionReturnType);
IO.mapOptional("AlwaysBreakAfterReturnType",
Style.AlwaysBreakAfterReturnType);
+
// If AlwaysBreakAfterDefinitionReturnType was specified but
// AlwaysBreakAfterReturnType was not, initialize the latter from the
// former for backwards compatibility.
@@ -629,6 +634,8 @@
LLVMStyle.AlignTrailingComments = true;
LLVMStyle.AlignConsecutiveAssignments = false;
LLVMStyle.AlignConsecutiveDeclarations = false;
+ LLVMStyle.AllowAllArgumentsOnNextLine = true;
+ LLVMStyle.AllowAllConstructorInitializersOnNextLine = true;
LLVMStyle.AllowAllParametersOfDeclarationOnNextLine = true;
LLVMStyle.AllowShortFunctionsOnASingleLine = FormatStyle::SFS_All;
LLVMStyle.AllowShortBlocksOnASingleLine = false;
Index: lib/Format/ContinuationIndenter.cpp
===================================================================
--- lib/Format/ContinuationIndenter.cpp
+++ lib/Format/ContinuationIndenter.cpp
@@ -882,14 +882,30 @@
State.Stack.back().BreakBeforeClosingBrace = true;
if (State.Stack.back().AvoidBinPacking) {
- // If we are breaking after '(', '{', '<', this is not bin packing
- // unless AllowAllParametersOfDeclarationOnNextLine is false or this is a
- // dict/object literal.
- if (!Previous.isOneOf(tok::l_paren, tok::l_brace, TT_BinaryOperator) ||
+ // If we are breaking after '(', '{', '<', or this is the break after a ':'
+ // to start a member initializater list in a constructor, this should not
+ // be considered bin packing unless the relevant AllowAll option is false or
+ // this is a dict/object literal.
+ bool PreviousIsBreakingCtorInitializerColon =
+ Previous.is(TT_CtorInitializerColon) &&
+ Style.BreakConstructorInitializers == FormatStyle::BCIS_AfterColon;
+ if (!(Previous.isOneOf(tok::l_paren, tok::l_brace, TT_BinaryOperator) ||
+ PreviousIsBreakingCtorInitializerColon) ||
(!Style.AllowAllParametersOfDeclarationOnNextLine &&
State.Line->MustBeDeclaration) ||
+ (!Style.AllowAllArgumentsOnNextLine &&
+ !State.Line->MustBeDeclaration) ||
+ (!Style.AllowAllConstructorInitializersOnNextLine &&
+ PreviousIsBreakingCtorInitializerColon) ||
Previous.is(TT_DictLiteral))
State.Stack.back().BreakBeforeParameter = true;
+
+ // If we are breaking after a ':' to start a member initializer list,
+ // and we allow all arguments on the next line, we should not break
+ // before the next parameter.
+ if (PreviousIsBreakingCtorInitializerColon &&
+ Style.AllowAllConstructorInitializersOnNextLine)
+ State.Stack.back().BreakBeforeParameter = false;
}
return Penalty;
@@ -1103,9 +1119,13 @@
? 0
: 2);
State.Stack.back().NestedBlockIndent = State.Stack.back().Indent;
- if (Style.ConstructorInitializerAllOnOneLineOrOnePerLine)
+ if (Style.ConstructorInitializerAllOnOneLineOrOnePerLine) {
State.Stack.back().AvoidBinPacking = true;
- State.Stack.back().BreakBeforeParameter = false;
+ State.Stack.back().BreakBeforeParameter =
+ !Style.AllowAllConstructorInitializersOnNextLine;
+ } else {
+ State.Stack.back().BreakBeforeParameter = false;
+ }
}
if (Current.is(TT_CtorInitializerColon) &&
Style.BreakConstructorInitializers == FormatStyle::BCIS_AfterColon) {
Index: include/clang/Format/Format.h
===================================================================
--- include/clang/Format/Format.h
+++ include/clang/Format/Format.h
@@ -155,6 +155,38 @@
/// \endcode
bool AlignTrailingComments;
+ /// \brief If a function call or braced initializer list doesn't fit on a
+ /// line, allow putting all arguments onto the next line, even if
+ /// ``BinPackArguments`` is ``false``.
+ /// \code
+ /// true:
+ /// callFunction(
+ /// a, b, c, d);
+ ///
+ /// false:
+ /// callFunction(a,
+ /// b,
+ /// c,
+ /// d);
+ /// \endcode
+ bool AllowAllArgumentsOnNextLine;
+
+ /// \brief If a constructor definition with a member initializer list doesn't
+ /// fit on a single line, allow putting all member initializers onto the next
+ /// line, if ```ConstructorInitializerAllOnOneLineOrOnePerLine``` is true.
+ /// Note that this parameter has no effect if
+ /// ```ConstructorInitializerAllOnOneLineOrOnePerLine``` is false.
+ /// \code
+ /// true:
+ /// MyClass::MyClass() :
+ /// member0(0), member1(2) {}
+ ///
+ /// false:
+ /// MyClass::MyClass() :
+ /// member0(0),
+ /// member1(2) {}
+ bool AllowAllConstructorInitializersOnNextLine;
+
/// If the function declaration doesn't fit on a line,
/// allow putting all parameters of a function declaration onto
/// the next line even if ``BinPackParameters`` is ``false``.
@@ -1721,6 +1753,9 @@
AlignEscapedNewlines == R.AlignEscapedNewlines &&
AlignOperands == R.AlignOperands &&
AlignTrailingComments == R.AlignTrailingComments &&
+ AllowAllArgumentsOnNextLine == R.AllowAllArgumentsOnNextLine &&
+ AllowAllConstructorInitializersOnNextLine ==
+ R.AllowAllConstructorInitializersOnNextLine &&
AllowAllParametersOfDeclarationOnNextLine ==
R.AllowAllParametersOfDeclarationOnNextLine &&
AllowShortBlocksOnASingleLine == R.AllowShortBlocksOnASingleLine &&
Index: docs/ClangFormatStyleOptions.rst
===================================================================
--- docs/ClangFormatStyleOptions.rst
+++ docs/ClangFormatStyleOptions.rst
@@ -270,6 +270,41 @@
int a; // My comment a vs. int a; // My comment a
int b = 2; // comment b int b = 2; // comment about b
+**AllowAllArgumentsOnNextLine** (``bool``)
+ If a function call or braced initializer list doesn't fit on a
+ line, allow putting all arguments onto the next line, even if
+ ``BinPackArguments`` is ``false``.
+
+ .. code-block:: c++
+
+ true:
+ callFunction(
+ a, b, c, d);
+
+ false:
+ callFunction(a,
+ b,
+ c,
+ d);
+
+**AllowAllConstructorInitializersOnNextLine** (``bool``)
+ If a constructor definition with a member initializer list doesn't
+ fit on a single line, allow putting all member initializers onto the next
+ line, if ```ConstructorInitializerAllOnOneLineOrOnePerLine``` is true.
+ Note that this parameter has no effect if
+ ```ConstructorInitializerAllOnOneLineOrOnePerLine``` is false.
+
+ .. code-block:: c++
+
+ true:
+ MyClass::MyClass() :
+ member0(0), member1(2) {}
+
+ false:
+ MyClass::MyClass() :
+ member0(0),
+ member1(2) {}
+
**AllowAllParametersOfDeclarationOnNextLine** (``bool``)
If the function declaration doesn't fit on a line,
allow putting all parameters of a function declaration onto
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