AlexanderHederstaf updated this revision to Diff 500215.
AlexanderHederstaf added a comment.
Fixed the const/volatile placement. Added a few tests.
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D144709/new/
https://reviews.llvm.org/D144709
Files:
clang/lib/Format/QualifierAlignmentFixer.cpp
clang/unittests/Format/QualifierFixerTest.cpp
Index: clang/unittests/Format/QualifierFixerTest.cpp
===================================================================
--- clang/unittests/Format/QualifierFixerTest.cpp
+++ clang/unittests/Format/QualifierFixerTest.cpp
@@ -581,6 +581,13 @@
verifyFormat("const volatile int a;", "int volatile const a;", Style);
verifyFormat("const volatile int a;", "const int volatile a;", Style);
+ // TODO: Left style can not move qualifiers past Foo.
+ // verifyFormat("const volatile Foo a;", "const volatile Foo a;", Style);
+ // verifyFormat("const volatile Foo a;", "volatile const Foo a;", Style);
+ // verifyFormat("const volatile Foo a;", "Foo const volatile a;", Style);
+ // verifyFormat("const volatile Foo a;", "Foo volatile const a;", Style);
+ // verifyFormat("const volatile Foo a;", "const Foo volatile a;", Style);
+
Style.QualifierAlignment = FormatStyle::QAS_Right;
Style.QualifierOrder = {"type", "const", "volatile"};
@@ -590,6 +597,12 @@
verifyFormat("int const volatile a;", "int volatile const a;", Style);
verifyFormat("int const volatile a;", "const int volatile a;", Style);
+ verifyFormat("Foo const volatile a;", "const volatile Foo a;", Style);
+ verifyFormat("Foo const volatile a;", "volatile const Foo a;", Style);
+ verifyFormat("Foo const volatile a;", "Foo const volatile a;", Style);
+ verifyFormat("Foo const volatile a;", "Foo volatile const a;", Style);
+ verifyFormat("Foo const volatile a;", "const Foo volatile a;", Style);
+
Style.QualifierAlignment = FormatStyle::QAS_Left;
Style.QualifierOrder = {"volatile", "const", "type"};
@@ -599,6 +612,13 @@
verifyFormat("volatile const int a;", "int volatile const a;", Style);
verifyFormat("volatile const int a;", "const int volatile a;", Style);
+ // TODO: Left style can not move qualifiers past Foo.
+ // verifyFormat("volatile const Foo a;", "const volatile Foo a;", Style);
+ // verifyFormat("volatile const Foo a;", "volatile const Foo a;", Style);
+ // verifyFormat("volatile const Foo a;", "Foo const volatile a;", Style);
+ // verifyFormat("volatile const Foo a;", "Foo volatile const a;", Style);
+ // verifyFormat("volatile const Foo a;", "const Foo volatile a;", Style);
+
Style.QualifierAlignment = FormatStyle::QAS_Right;
Style.QualifierOrder = {"type", "volatile", "const"};
@@ -608,6 +628,12 @@
verifyFormat("int volatile const a;", "int volatile const a;", Style);
verifyFormat("int volatile const a;", "const int volatile a;", Style);
+ verifyFormat("Foo volatile const a;", "const volatile Foo a;", Style);
+ verifyFormat("Foo volatile const a;", "volatile const Foo a;", Style);
+ verifyFormat("Foo volatile const a;", "Foo const volatile a;", Style);
+ verifyFormat("Foo volatile const a;", "Foo volatile const a;", Style);
+ verifyFormat("Foo volatile const a;", "const Foo volatile a;", Style);
+
Style.QualifierAlignment = FormatStyle::QAS_Custom;
Style.QualifierOrder = {"type", "volatile", "const"};
@@ -616,6 +642,12 @@
verifyFormat("int volatile const a;", "int const volatile a;", Style);
verifyFormat("int volatile const a;", "int volatile const a;", Style);
verifyFormat("int volatile const a;", "const int volatile a;", Style);
+
+ verifyFormat("Foo volatile const a;", "const volatile Foo a;", Style);
+ verifyFormat("Foo volatile const a;", "volatile const Foo a;", Style);
+ verifyFormat("Foo volatile const a;", "Foo const volatile a;", Style);
+ verifyFormat("Foo volatile const a;", "Foo volatile const a;", Style);
+ verifyFormat("Foo volatile const a;", "const Foo volatile a;", Style);
}
TEST_F(QualifierFixerTest, InlineStatics) {
@@ -704,6 +736,21 @@
verifyFormat("static inline int const volatile *a const;",
"const int inline static volatile *a const;", Style);
+
+ verifyFormat("static inline Foo const volatile a;",
+ "const inline static volatile Foo a;", Style);
+ verifyFormat("static inline Foo const volatile a;",
+ "volatile inline static const Foo a;", Style);
+ // TODO: Fails as static or inline can't be moved past Foo to the left.
+ // verifyFormat("static inline Foo const volatile a;",
+ // "Foo const inline static volatile a;", Style);
+ // verifyFormat("static inline Foo const volatile a;",
+ // "Foo volatile inline static const a;", Style);
+ // verifyFormat("static inline Foo const volatile a;",
+ // "const Foo inline static volatile a;", Style);
+
+ // verifyFormat("static inline Foo const volatile *a const;",
+ // "const Foo inline static volatile *a const;", Style);
}
TEST_F(QualifierFixerTest, PrepareLeftRightOrdering) {
@@ -924,6 +971,12 @@
Style.QualifierAlignment = FormatStyle::QAS_Custom;
Style.QualifierOrder = {"type", "const"};
+ // TODO: Whitespace issue with this replacement
+ verifyFormat("template <typename T> Foo const f();",
+ "template <typename T>\n"
+ "const Foo f();",
+ Style);
+ // TODO: Doesn't handle requires ...
verifyFormat("template <typename T>\n"
" requires Concept<T const>\n"
"void f();",
Index: clang/lib/Format/QualifierAlignmentFixer.cpp
===================================================================
--- clang/lib/Format/QualifierAlignmentFixer.cpp
+++ clang/lib/Format/QualifierAlignmentFixer.cpp
@@ -217,62 +217,70 @@
if (LeftRightQualifierAlignmentFixer::isPossibleMacro(Tok->Next))
return Tok;
- auto AnalyzeTemplate =
- [&](const FormatToken *Tok,
- const FormatToken *StartTemplate) -> const FormatToken * {
- // Read from the TemplateOpener to TemplateCloser.
- FormatToken *EndTemplate = StartTemplate->MatchingParen;
- if (EndTemplate) {
- // Move to the end of any template class members e.g.
- // `Foo<int>::iterator`.
- if (EndTemplate->startsSequence(TT_TemplateCloser, tok::coloncolon,
- tok::identifier)) {
- EndTemplate = EndTemplate->Next->Next;
- }
- }
- if (EndTemplate && EndTemplate->Next &&
- !EndTemplate->Next->isOneOf(tok::equal, tok::l_paren)) {
- insertQualifierAfter(SourceMgr, Fixes, EndTemplate, Qualifier);
- // Remove the qualifier.
- removeToken(SourceMgr, Fixes, Tok);
- return Tok;
+ const FormatToken *PreviousCheck = Tok->Previous;
+ while (PreviousCheck && llvm::is_contained(ConfiguredQualifierTokens,
+ PreviousCheck->Tok.getKind())) {
+ PreviousCheck = PreviousCheck->Previous;
+ }
+
+ const bool IsEastQualifier = PreviousCheck && [PreviousCheck]() {
+ if (PreviousCheck->is(tok::r_paren)) {
+ return true;
+ } else if (PreviousCheck->is(TT_TemplateCloser)) {
+ return PreviousCheck->MatchingParen->Previous->isNot(tok::kw_template);
+ } else if (PreviousCheck->isOneOf(TT_PointerOrReference, tok::identifier,
+ tok::kw_auto)) {
+ return true;
}
- return nullptr;
- };
+ return false;
+ }();
- FormatToken *Qual = Tok->Next;
- FormatToken *LastQual = Qual;
- while (Qual && isQualifierOrType(Qual, ConfiguredQualifierTokens)) {
- LastQual = Qual;
- Qual = Qual->Next;
+ const FormatToken *LastQual = Tok;
+ while (LastQual->Next && llvm::is_contained(ConfiguredQualifierTokens,
+ LastQual->Next->Tok.getKind())) {
+ LastQual = LastQual->Next;
}
- if (LastQual && Qual != LastQual) {
- rotateTokens(SourceMgr, Fixes, Tok, LastQual, /*Left=*/false);
- Tok = LastQual;
- } else if (Tok->startsSequence(QualifierType, tok::identifier,
- TT_TemplateCloser)) {
- FormatToken *Closer = Tok->Next->Next;
- rotateTokens(SourceMgr, Fixes, Tok, Tok->Next, /*Left=*/false);
- Tok = Closer;
+
+ if (IsEastQualifier) {
+ if (LastQual != Tok)
+ rotateTokens(SourceMgr, Fixes, Tok, LastQual, /*Left=*/false);
return Tok;
- } else if (Tok->startsSequence(QualifierType, tok::identifier,
- TT_TemplateOpener)) {
- // `const ArrayRef<int> a;`
- // `const ArrayRef<int> &a;`
- const FormatToken *NewTok = AnalyzeTemplate(Tok, Tok->Next->Next);
- if (NewTok)
- return NewTok;
- } else if (Tok->startsSequence(QualifierType, tok::coloncolon,
- tok::identifier, TT_TemplateOpener)) {
- // `const ::ArrayRef<int> a;`
- // `const ::ArrayRef<int> &a;`
- const FormatToken *NewTok = AnalyzeTemplate(Tok, Tok->Next->Next->Next);
- if (NewTok)
- return NewTok;
- } else if (Tok->startsSequence(QualifierType, tok::identifier) ||
- Tok->startsSequence(QualifierType, tok::coloncolon,
- tok::identifier)) {
- FormatToken *Next = Tok->Next;
+ }
+
+ const FormatToken *TypeToken = LastQual->Next;
+ if (!TypeToken)
+ return Tok;
+
+ if (TypeToken->isSimpleTypeSpecifier()) {
+ const FormatToken *LastSimpleTypeSpecifier = TypeToken;
+ while (LastSimpleTypeSpecifier->Next &&
+ LastSimpleTypeSpecifier->Next->isSimpleTypeSpecifier()) {
+ LastSimpleTypeSpecifier = LastSimpleTypeSpecifier->Next;
+ }
+
+ // Place the Qualifier at the end of the list of qualifiers.
+ while (LastSimpleTypeSpecifier->Next &&
+ llvm::is_contained(ConfiguredQualifierTokens,
+ LastSimpleTypeSpecifier->Next->Tok.getKind())) {
+ LastSimpleTypeSpecifier = LastSimpleTypeSpecifier->Next;
+ }
+
+ rotateTokens(SourceMgr, Fixes, Tok, LastSimpleTypeSpecifier,
+ /*Left=*/false);
+ return LastSimpleTypeSpecifier;
+ } else if (PreviousCheck && PreviousCheck->isSimpleTypeSpecifier()) {
+ if (LastQual != Tok)
+ rotateTokens(SourceMgr, Fixes, Tok, LastQual, /*Left=*/false);
+ return Tok;
+ }
+
+ if (TypeToken->is(tok::coloncolon))
+ TypeToken = TypeToken->Next;
+
+ if (TypeToken->isOneOf(tok::kw_auto, tok::identifier)) {
+ const FormatToken *TypeEnd = TypeToken;
+
+ // The case `const auto` -> `auto const`
// The case `const Foo` -> `Foo const`
// The case `const ::Foo` -> `::Foo const`
// The case `const Foo *` -> `Foo const *`
@@ -280,27 +288,23 @@
// The case `const Foo &&` -> `Foo const &&`
// The case `const std::Foo &&` -> `std::Foo const &&`
// The case `const std::Foo<T> &&` -> `std::Foo<T> const &&`
- while (Next && Next->isOneOf(tok::identifier, tok::coloncolon))
- Next = Next->Next;
- if (Next && Next->is(TT_TemplateOpener)) {
- Next = Next->MatchingParen;
- // Move to the end of any template class members e.g.
- // `Foo<int>::iterator`.
- if (Next && Next->startsSequence(TT_TemplateCloser, tok::coloncolon,
- tok::identifier)) {
- return Tok;
- }
- assert(Next && "Missing template opener");
- Next = Next->Next;
+ while (TypeEnd->Next &&
+ (TypeEnd->Next->startsSequence(tok::coloncolon, tok::identifier) ||
+ TypeEnd->Next->is(TT_TemplateOpener))) {
+ if (TypeEnd->Next->is(TT_TemplateOpener))
+ TypeEnd = TypeEnd->Next->MatchingParen;
+ else
+ TypeEnd = TypeEnd->Next->Next;
}
- if (Next && Next->isOneOf(tok::star, tok::amp, tok::ampamp) &&
- !Tok->Next->isOneOf(Keywords.kw_override, Keywords.kw_final)) {
- if (Next->Previous && !Next->Previous->is(QualifierType)) {
- insertQualifierAfter(SourceMgr, Fixes, Next->Previous, Qualifier);
- removeToken(SourceMgr, Fixes, Tok);
- }
- return Next;
+
+ // Place the Qualifier at the end of the list of qualifiers.
+ while (TypeEnd->Next && llvm::is_contained(ConfiguredQualifierTokens,
+ TypeEnd->Next->Tok.getKind())) {
+ TypeEnd = TypeEnd->Next;
}
+
+ insertQualifierAfter(SourceMgr, Fixes, TypeEnd, Qualifier);
+ removeToken(SourceMgr, Fixes, Tok);
}
return Tok;
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