forked from OSchip/llvm-project
clang-format: Keep string-literal-label + value pairs on a line.
We have previously done that for <<-operators. This patch also adds
this logic for "," and "+".
Before:
string v = "aaaaaaaaaaaaaaaa: " + aaaaaaaaaaaaaaaa + "aaaaaaaaaaaaaaaa: " +
aaaaaaaaaaaaaaaa + "aaaaaaaaaaaaaaaa: " + aaaaaaaaaaaaaaaa;
string v = StrCat("aaaaaaaaaaaaaaaa: ", aaaaaaaaaaaaaaaa, "aaaaaaaaaaaaaaaa: ",
aaaaaaaaaaaaaaaa, "aaaaaaaaaaaaaaaa: ", aaaaaaaaaaaaaaaa);
After:
string v = "aaaaaaaaaaaaaaaa: " + aaaaaaaaaaaaaaaa +
"aaaaaaaaaaaaaaaa: " + aaaaaaaaaaaaaaaa +
"aaaaaaaaaaaaaaaa: " + aaaaaaaaaaaaaaaa;
string v = StrCat("aaaaaaaaaaaaaaaa: ", aaaaaaaaaaaaaaaa,
"aaaaaaaaaaaaaaaa: ", aaaaaaaaaaaaaaaa,
"aaaaaaaaaaaaaaaa: ", aaaaaaaaaaaaaaaa);
llvm-svn: 289531
This commit is contained in:
Daniel Jasper
parent
e8af792439
commit
7209bb9d4e
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@ -396,6 +396,21 @@ struct FormatToken {
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}
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}
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/// \brief Returns \c true if this is a string literal that's like a label,
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/// e.g. ends with "=" or ":".
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bool isLabelString() const {
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if (!is(tok::string_literal))
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return false;
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StringRef Content = TokenText;
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if (Content.startswith("\"") || Content.startswith("'"))
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Content = Content.drop_front(1);
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if (Content.endswith("\"") || Content.endswith("'"))
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Content = Content.drop_back(1);
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Content = Content.trim();
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return Content.size() > 1 &&
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(Content.back() == ':' || Content.back() == '=');
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}
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/// \brief Returns actual token start location without leading escaped
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/// newlines and whitespace.
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///
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@ -1882,8 +1882,7 @@ unsigned TokenAnnotator::splitPenalty(const AnnotatedLine &Line,
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return 100;
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}
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if (Left.is(tok::comma) || (Right.is(tok::identifier) && Right.Next &&
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Right.Next->is(TT_DictLiteral)))
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if (Right.is(tok::identifier) && Right.Next && Right.Next->is(TT_DictLiteral))
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return 1;
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if (Right.is(tok::l_square)) {
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if (Style.Language == FormatStyle::LK_Proto)
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@ -1999,21 +1998,17 @@ unsigned TokenAnnotator::splitPenalty(const AnnotatedLine &Line,
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if (Left.is(TT_JavaAnnotation))
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return 50;
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if (Right.is(tok::lessless)) {
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if (Left.is(tok::string_literal) &&
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(Right.NextOperator || Right.OperatorIndex != 1)) {
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StringRef Content = Left.TokenText;
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if (Content.startswith("\""))
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Content = Content.drop_front(1);
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if (Content.endswith("\""))
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Content = Content.drop_back(1);
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Content = Content.trim();
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if (Content.size() > 1 &&
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(Content.back() == ':' || Content.back() == '='))
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return 25;
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}
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if (Left.isOneOf(tok::plus, tok::comma) && Left.Previous &&
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Left.Previous->isLabelString() &&
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(Left.NextOperator || Left.OperatorIndex != 1))
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return 100;
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if (Left.is(tok::comma))
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return 1;
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if (Right.isOneOf(tok::lessless, tok::plus) && Left.isLabelString() &&
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(Right.NextOperator || Right.OperatorIndex != 1))
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return 25;
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if (Right.is(tok::lessless))
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return 1; // Breaking at a << is really cheap.
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}
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if (Left.is(TT_ConditionalExpr))
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return prec::Conditional;
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prec::Level Level = Left.getPrecedence();
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@ -2631,7 +2626,8 @@ void TokenAnnotator::printDebugInfo(const AnnotatedLine &Line) {
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<< " FakeLParens=";
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for (unsigned i = 0, e = Tok->FakeLParens.size(); i != e; ++i)
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llvm::errs() << Tok->FakeLParens[i] << "/";
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llvm::errs() << " FakeRParens=" << Tok->FakeRParens << "\n";
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llvm::errs() << " FakeRParens=" << Tok->FakeRParens;
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llvm::errs() << " Text='" << Tok->TokenText << "'\n";
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if (!Tok->Next)
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assert(Tok == Line.Last);
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Tok = Tok->Next;
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@ -5109,29 +5109,6 @@ TEST_F(FormatTest, AlignsPipes) {
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"llvm::errs() << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n"
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" aaaaaaaaaaaaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaaaaaaaaaaa);");
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verifyFormat("return out << \"somepacket = {\\n\"\n"
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" << \" aaaaaa = \" << pkt.aaaaaa << \"\\n\"\n"
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" << \" bbbb = \" << pkt.bbbb << \"\\n\"\n"
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" << \" cccccc = \" << pkt.cccccc << \"\\n\"\n"
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" << \" ddd = [\" << pkt.ddd << \"]\\n\"\n"
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" << \"}\";");
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verifyFormat("llvm::outs() << \"aaaaaaaaaaaaaaaa: \" << aaaaaaaaaaaaaaaa\n"
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" << \"aaaaaaaaaaaaaaaa: \" << aaaaaaaaaaaaaaaa\n"
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" << \"aaaaaaaaaaaaaaaa: \" << aaaaaaaaaaaaaaaa;");
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verifyFormat(
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"llvm::outs() << \"aaaaaaaaaaaaaaaaa = \" << aaaaaaaaaaaaaaaaa\n"
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" << \"bbbbbbbbbbbbbbbbb = \" << bbbbbbbbbbbbbbbbb\n"
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" << \"ccccccccccccccccc = \" << ccccccccccccccccc\n"
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" << \"ddddddddddddddddd = \" << ddddddddddddddddd\n"
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" << \"eeeeeeeeeeeeeeeee = \" << eeeeeeeeeeeeeeeee;");
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verifyFormat("llvm::outs() << aaaaaaaaaaaaaaaaaaaaaaaa << \"=\"\n"
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" << bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb;");
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verifyFormat(
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"void f() {\n"
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" llvm::outs() << \"aaaaaaaaaaaaaaaaaaaa: \"\n"
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" << aaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaa);\n"
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"}");
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verifyFormat("llvm::outs() << \"aaaaaaaaaaaaaaaa: \"\n"
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" << aaaaaaaa.aaaaaaaaaaaa(aaa)->aaaaaaaaaaaaaa();");
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verifyFormat("llvm::errs() << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n"
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@ -5142,22 +5119,6 @@ TEST_F(FormatTest, AlignsPipes) {
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" bbb)\n"
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" << a << b;");
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// Breaking before the first "<<" is generally not desirable.
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verifyFormat(
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"llvm::errs()\n"
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" << \"aaaaaaaaaaaaaaaaaaa: \" << aaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
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" << \"aaaaaaaaaaaaaaaaaaa: \" << aaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
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" << \"aaaaaaaaaaaaaaaaaaa: \" << aaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
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" << \"aaaaaaaaaaaaaaaaaaa: \" << aaaaaaaaaaaaaaaaaaaaaaaaaaaa;",
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getLLVMStyleWithColumns(70));
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verifyFormat("llvm::errs() << \"aaaaaaaaaaaaaaaaaaa: \"\n"
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" << aaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
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" << \"aaaaaaaaaaaaaaaaaaa: \"\n"
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" << aaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
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" << \"aaaaaaaaaaaaaaaaaaa: \"\n"
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" << aaaaaaaaaaaaaaaaaaaaaaaaaaaa;",
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getLLVMStyleWithColumns(70));
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// But sometimes, breaking before the first "<<" is desirable.
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verifyFormat("Diag(aaaaaaaaaaaaaaaaaaaa, aaaaaaaa)\n"
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" << aaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaa);");
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@ -5203,6 +5164,55 @@ TEST_F(FormatTest, AlignsPipes) {
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verifyFormat("llvm::errs() << \"\\n\" << bbbbbbbbbbbbbbbbbbbbbb << \"\\n\";");
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}
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TEST_F(FormatTest, KeepStringLabelValuePairsOnALine) {
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verifyFormat("return out << \"somepacket = {\\n\"\n"
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" << \" aaaaaa = \" << pkt.aaaaaa << \"\\n\"\n"
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" << \" bbbb = \" << pkt.bbbb << \"\\n\"\n"
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" << \" cccccc = \" << pkt.cccccc << \"\\n\"\n"
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" << \" ddd = [\" << pkt.ddd << \"]\\n\"\n"
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" << \"}\";");
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verifyFormat("llvm::outs() << \"aaaaaaaaaaaaaaaa: \" << aaaaaaaaaaaaaaaa\n"
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" << \"aaaaaaaaaaaaaaaa: \" << aaaaaaaaaaaaaaaa\n"
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" << \"aaaaaaaaaaaaaaaa: \" << aaaaaaaaaaaaaaaa;");
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verifyFormat(
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"llvm::outs() << \"aaaaaaaaaaaaaaaaa = \" << aaaaaaaaaaaaaaaaa\n"
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" << \"bbbbbbbbbbbbbbbbb = \" << bbbbbbbbbbbbbbbbb\n"
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" << \"ccccccccccccccccc = \" << ccccccccccccccccc\n"
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" << \"ddddddddddddddddd = \" << ddddddddddddddddd\n"
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" << \"eeeeeeeeeeeeeeeee = \" << eeeeeeeeeeeeeeeee;");
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verifyFormat("llvm::outs() << aaaaaaaaaaaaaaaaaaaaaaaa << \"=\"\n"
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" << bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb;");
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verifyFormat(
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"void f() {\n"
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" llvm::outs() << \"aaaaaaaaaaaaaaaaaaaa: \"\n"
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" << aaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaa);\n"
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"}");
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// Breaking before the first "<<" is generally not desirable.
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verifyFormat(
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"llvm::errs()\n"
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" << \"aaaaaaaaaaaaaaaaaaa: \" << aaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
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" << \"aaaaaaaaaaaaaaaaaaa: \" << aaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
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" << \"aaaaaaaaaaaaaaaaaaa: \" << aaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
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" << \"aaaaaaaaaaaaaaaaaaa: \" << aaaaaaaaaaaaaaaaaaaaaaaaaaaa;",
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getLLVMStyleWithColumns(70));
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verifyFormat("llvm::errs() << \"aaaaaaaaaaaaaaaaaaa: \"\n"
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" << aaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
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" << \"aaaaaaaaaaaaaaaaaaa: \"\n"
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" << aaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
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" << \"aaaaaaaaaaaaaaaaaaa: \"\n"
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" << aaaaaaaaaaaaaaaaaaaaaaaaaaaa;",
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getLLVMStyleWithColumns(70));
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verifyFormat("string v = \"aaaaaaaaaaaaaaaa: \" + aaaaaaaaaaaaaaaa +\n"
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" \"aaaaaaaaaaaaaaaa: \" + aaaaaaaaaaaaaaaa +\n"
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" \"aaaaaaaaaaaaaaaa: \" + aaaaaaaaaaaaaaaa;");
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verifyFormat("string v = StrCat(\"aaaaaaaaaaaaaaaa: \", aaaaaaaaaaaaaaaa,\n"
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" \"aaaaaaaaaaaaaaaa: \", aaaaaaaaaaaaaaaa,\n"
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" \"aaaaaaaaaaaaaaaa: \", aaaaaaaaaaaaaaaa);");
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}
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TEST_F(FormatTest, UnderstandsEquals) {
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verifyFormat(
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"aaaaaaaaaaaaaaaaa =\n"
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