/// getRangeSize - Return the size in bytes of the specified range if they
/// are in the same file. If not, this returns -1.
int Rewriter::getRangeSize(const CharSourceRange &Range,
RewriteOptions opts) const {
if (!isRewritable(Range.getBegin()) ||
!isRewritable(Range.getEnd())) return -1;
FileID StartFileID, EndFileID;
unsigned StartOff, EndOff;
StartOff = getLocationOffsetAndFileID(Range.getBegin(), StartFileID);
EndOff = getLocationOffsetAndFileID(Range.getEnd(), EndFileID);
if (StartFileID != EndFileID)
return -1;
// If edits have been made to this buffer, the delta between the range may
// have changed.
std::map<FileID, RewriteBuffer>::const_iterator I =
RewriteBuffers.find(StartFileID);
if (I != RewriteBuffers.end()) {
const RewriteBuffer &RB = I->second;
EndOff = RB.getMappedOffset(EndOff, opts.IncludeInsertsAtEndOfRange);
StartOff = RB.getMappedOffset(StartOff, !opts.IncludeInsertsAtBeginOfRange);
}
// Adjust the end offset to the end of the last token, instead of being the
// start of the last token if this is a token range.
if (Range.isTokenRange())
EndOff += Lexer::MeasureTokenLength(Range.getEnd(), *SourceMgr, *LangOpts);
return EndOff-StartOff;
}
bool Commit::canRemoveRange(CharSourceRange range,
FileOffset &Offs, unsigned &Len) {
const SourceManager &SM = SourceMgr;
range = Lexer::makeFileCharRange(range, SM, LangOpts);
if (range.isInvalid())
return false;
if (range.getBegin().isMacroID() || range.getEnd().isMacroID())
return false;
if (SM.isInSystemHeader(range.getBegin()) ||
SM.isInSystemHeader(range.getEnd()))
return false;
if (PPRec && PPRec->rangeIntersectsConditionalDirective(range.getAsRange()))
return false;
std::pair<FileID, unsigned> beginInfo = SM.getDecomposedLoc(range.getBegin());
std::pair<FileID, unsigned> endInfo = SM.getDecomposedLoc(range.getEnd());
if (beginInfo.first != endInfo.first ||
beginInfo.second > endInfo.second)
return false;
Offs = FileOffset(beginInfo.first, beginInfo.second);
Len = endInfo.second - beginInfo.second;
return true;
}
static SourceLoc findEndOfLine(SourceManager &SM, SourceLoc loc,
unsigned bufferID) {
CharSourceRange entireBuffer = SM.getRangeForBuffer(bufferID);
CharSourceRange rangeFromLoc{SM, loc, entireBuffer.getEnd()};
StringRef textFromLoc = SM.extractText(rangeFromLoc);
size_t newlineOffset = textFromLoc.find_first_of({"\r\n\0", 3});
if (newlineOffset == StringRef::npos)
return entireBuffer.getEnd();
return loc.getAdvancedLoc(newlineOffset);
}
void SDiagsWriter::AddCharSourceRangeToRecord(CharSourceRange Range,
RecordDataImpl &Record,
const SourceManager &SM) {
AddLocToRecord(Range.getBegin(), Record, &SM);
unsigned TokSize = 0;
if (Range.isTokenRange())
TokSize = Lexer::MeasureTokenLength(Range.getEnd(),
SM, *LangOpts);
AddLocToRecord(Range.getEnd(), Record, &SM, TokSize);
}
bool Commit::insertWrap(StringRef before, CharSourceRange range,
StringRef after) {
bool commitableBefore = insert(range.getBegin(), before, /*afterToken=*/false,
/*beforePreviousInsertions=*/true);
bool commitableAfter;
if (range.isTokenRange())
commitableAfter = insertAfterToken(range.getEnd(), after);
else
commitableAfter = insert(range.getEnd(), after);
return commitableBefore && commitableAfter;
}
static RawComment toRawComment(ASTContext &Context, CharSourceRange Range) {
if (Range.isInvalid())
return RawComment();
auto &SourceMgr = Context.SourceMgr;
unsigned BufferID = SourceMgr.findBufferContainingLoc(Range.getStart());
unsigned Offset = SourceMgr.getLocOffsetInBuffer(Range.getStart(), BufferID);
unsigned EndOffset = SourceMgr.getLocOffsetInBuffer(Range.getEnd(), BufferID);
LangOptions FakeLangOpts;
Lexer L(FakeLangOpts, SourceMgr, BufferID, nullptr, LexerMode::Swift,
HashbangMode::Disallowed,
CommentRetentionMode::ReturnAsTokens,
TriviaRetentionMode::WithoutTrivia,
Offset, EndOffset);
SmallVector<SingleRawComment, 16> Comments;
Token Tok;
while (true) {
L.lex(Tok);
if (Tok.is(tok::eof))
break;
assert(Tok.is(tok::comment));
addCommentToList(Comments, SingleRawComment(Tok.getRange(), SourceMgr));
}
RawComment Result;
Result.Comments = Context.AllocateCopy(Comments);
return Result;
}
// Re-lex the tokens to get precise locations to insert 'override' and remove
// 'virtual'.
static SmallVector<Token, 16>
ParseTokens(CharSourceRange Range, const MatchFinder::MatchResult &Result) {
const SourceManager &Sources = *Result.SourceManager;
std::pair<FileID, unsigned> LocInfo =
Sources.getDecomposedLoc(Range.getBegin());
StringRef File = Sources.getBufferData(LocInfo.first);
const char *TokenBegin = File.data() + LocInfo.second;
Lexer RawLexer(Sources.getLocForStartOfFile(LocInfo.first),
Result.Context->getLangOpts(), File.begin(), TokenBegin,
File.end());
SmallVector<Token, 16> Tokens;
Token Tok;
while (!RawLexer.LexFromRawLexer(Tok)) {
if (Tok.is(tok::semi) || Tok.is(tok::l_brace))
break;
if (Sources.isBeforeInTranslationUnit(Range.getEnd(), Tok.getLocation()))
break;
if (Tok.is(tok::raw_identifier)) {
IdentifierInfo &Info = Result.Context->Idents.get(StringRef(
Sources.getCharacterData(Tok.getLocation()), Tok.getLength()));
Tok.setIdentifierInfo(&Info);
Tok.setKind(Info.getTokenID());
}
Tokens.push_back(Tok);
}
return Tokens;
}
bool SourceManager::openVirtualFile(SourceLoc loc, StringRef name,
int lineOffset) {
CharSourceRange fullRange = getRangeForBuffer(findBufferContainingLoc(loc));
SourceLoc end;
auto nextRangeIter = VirtualFiles.upper_bound(loc.Value.getPointer());
if (nextRangeIter != VirtualFiles.end() &&
fullRange.contains(nextRangeIter->second.Range.getStart())) {
const VirtualFile &existingFile = nextRangeIter->second;
if (existingFile.Range.getStart() == loc) {
assert(existingFile.Name == name);
assert(existingFile.LineOffset == lineOffset);
return false;
}
assert(!existingFile.Range.contains(loc) &&
"must close current open file first");
end = nextRangeIter->second.Range.getStart();
} else {
end = fullRange.getEnd();
}
CharSourceRange range = CharSourceRange(*this, loc, end);
VirtualFiles[end.Value.getPointer()] = { range, name, lineOffset };
CachedVFile = {nullptr, nullptr};
return true;
}
bool Commit::replaceWithInner(CharSourceRange range,
CharSourceRange replacementRange) {
FileOffset OuterBegin;
unsigned OuterLen;
if (!canRemoveRange(range, OuterBegin, OuterLen)) {
IsCommitable = false;
return false;
}
FileOffset InnerBegin;
unsigned InnerLen;
if (!canRemoveRange(replacementRange, InnerBegin, InnerLen)) {
IsCommitable = false;
return false;
}
FileOffset OuterEnd = OuterBegin.getWithOffset(OuterLen);
FileOffset InnerEnd = InnerBegin.getWithOffset(InnerLen);
if (OuterBegin.getFID() != InnerBegin.getFID() ||
InnerBegin < OuterBegin ||
InnerBegin > OuterEnd ||
InnerEnd > OuterEnd) {
IsCommitable = false;
return false;
}
addRemove(range.getBegin(),
OuterBegin, InnerBegin.getOffset() - OuterBegin.getOffset());
addRemove(replacementRange.getEnd(),
InnerEnd, OuterEnd.getOffset() - InnerEnd.getOffset());
return true;
}
void SerializedDiagnosticConsumer::addRangeToRecord(CharSourceRange Range,
SourceManager &SM,
StringRef Filename,
RecordDataImpl &Record) {
assert(Range.isValid());
addLocToRecord(Range.getStart(), SM, Filename, Record);
addLocToRecord(Range.getEnd(), SM, Filename, Record);
}
static std::pair<unsigned, unsigned>
makeStandaloneRange(CharSourceRange Range, const SourceManager &SM,
const LangOptions &LangOpts) {
CharSourceRange FileRange = Lexer::makeFileCharRange(Range, SM, LangOpts);
unsigned Offset = SM.getFileOffset(FileRange.getBegin());
unsigned EndOffset = SM.getFileOffset(FileRange.getEnd());
return std::make_pair(Offset, EndOffset);
}
SingleRawComment::SingleRawComment(CharSourceRange Range,
const SourceManager &SourceMgr)
: Range(Range), RawText(SourceMgr.extractText(Range)),
Kind(static_cast<unsigned>(getCommentKind(RawText))) {
auto StartLineAndColumn = SourceMgr.getLineAndColumn(Range.getStart());
StartLine = StartLineAndColumn.first;
StartColumn = StartLineAndColumn.second;
EndLine = SourceMgr.getLineNumber(Range.getEnd());
}
static void EmitRange(raw_ostream& o, const SourceManager &SM,
const LangOptions &LangOpts,
CharSourceRange R, const FIDMap &FM,
unsigned indent) {
Indent(o, indent) << "<array>\n";
EmitLocation(o, SM, LangOpts, R.getBegin(), FM, indent+1);
EmitLocation(o, SM, LangOpts, R.getEnd(), FM, indent+1, R.isTokenRange());
Indent(o, indent) << "</array>\n";
}
bool AffectedRangeManager::affectsCharSourceRange(
const CharSourceRange &Range) {
for (SmallVectorImpl<CharSourceRange>::const_iterator I = Ranges.begin(),
E = Ranges.end();
I != E; ++I) {
if (!SourceMgr.isBeforeInTranslationUnit(Range.getEnd(), I->getBegin()) &&
!SourceMgr.isBeforeInTranslationUnit(I->getEnd(), Range.getBegin()))
return true;
}
return false;
}
// FIXME: This should go into the Lexer, but we need to figure out how
// to handle ranges for refactoring in general first - there is no obvious
// good way how to integrate this into the Lexer yet.
static int getRangeSize(SourceManager &Sources, const CharSourceRange &Range) {
SourceLocation SpellingBegin = Sources.getSpellingLoc(Range.getBegin());
SourceLocation SpellingEnd = Sources.getSpellingLoc(Range.getEnd());
std::pair<FileID, unsigned> Start = Sources.getDecomposedLoc(SpellingBegin);
std::pair<FileID, unsigned> End = Sources.getDecomposedLoc(SpellingEnd);
if (Start.first != End.first) return -1;
if (Range.isTokenRange())
End.second += Lexer::MeasureTokenLength(SpellingEnd, Sources,
LangOptions());
return End.second - Start.second;
}
/// Check if all the locations in the range have the same macro argument
/// expansion, and that that expansion starts with ArgumentLoc.
static bool checkRangeForMacroArgExpansion(CharSourceRange Range,
const SourceManager &SM,
SourceLocation ArgumentLoc) {
SourceLocation BegLoc = Range.getBegin(), EndLoc = Range.getEnd();
while (BegLoc != EndLoc) {
if (!checkLocForMacroArgExpansion(BegLoc, SM, ArgumentLoc))
return false;
BegLoc.getLocWithOffset(1);
}
return checkLocForMacroArgExpansion(BegLoc, SM, ArgumentLoc);
}
void ReplaceAutoPtrCheck::check(const MatchFinder::MatchResult &Result) {
SourceManager &SM = *Result.SourceManager;
if (const auto *E =
Result.Nodes.getNodeAs<Expr>(AutoPtrOwnershipTransferId)) {
CharSourceRange Range = Lexer::makeFileCharRange(
CharSourceRange::getTokenRange(E->getSourceRange()), SM, LangOptions());
if (Range.isInvalid())
return;
auto Diag = diag(Range.getBegin(), "use std::move to transfer ownership")
<< FixItHint::CreateInsertion(Range.getBegin(), "std::move(")
<< FixItHint::CreateInsertion(Range.getEnd(), ")");
if (auto Fix =
Inserter->CreateIncludeInsertion(SM.getMainFileID(), "utility",
/*IsAngled=*/true))
Diag << *Fix;
return;
}
SourceLocation AutoPtrLoc;
if (const auto *TL = Result.Nodes.getNodeAs<TypeLoc>(AutoPtrTokenId)) {
// std::auto_ptr<int> i;
// ^
if (auto Loc = TL->getAs<TemplateSpecializationTypeLoc>())
AutoPtrLoc = Loc.getTemplateNameLoc();
} else if (const auto *D =
Result.Nodes.getNodeAs<UsingDecl>(AutoPtrTokenId)) {
// using std::auto_ptr;
// ^
AutoPtrLoc = D->getNameInfo().getBeginLoc();
} else {
llvm_unreachable("Bad Callback. No node provided.");
}
if (AutoPtrLoc.isMacroID())
AutoPtrLoc = SM.getSpellingLoc(AutoPtrLoc);
// Ensure that only the 'auto_ptr' token is replaced and not the template
// aliases.
if (StringRef(SM.getCharacterData(AutoPtrLoc), strlen("auto_ptr")) !=
"auto_ptr")
return;
SourceLocation EndLoc =
AutoPtrLoc.getLocWithOffset(strlen("auto_ptr") - 1);
diag(AutoPtrLoc, "auto_ptr is deprecated, use unique_ptr instead")
<< FixItHint::CreateReplacement(SourceRange(AutoPtrLoc, EndLoc),
"unique_ptr");
}
/// Find the suitable set of lines to show to include a set of ranges.
static llvm::Optional<std::pair<unsigned, unsigned>>
findLinesForRange(const CharSourceRange &R, FileID FID,
const SourceManager &SM) {
if (!R.isValid()) return None;
SourceLocation Begin = R.getBegin();
SourceLocation End = R.getEnd();
if (SM.getFileID(Begin) != FID || SM.getFileID(End) != FID)
return None;
return std::make_pair(SM.getExpansionLineNumber(Begin),
SM.getExpansionLineNumber(End));
}
void PreprocessingRecord::InclusionDirective(
SourceLocation HashLoc,
const clang::Token &IncludeTok,
StringRef FileName,
bool IsAngled,
CharSourceRange FilenameRange,
const FileEntry *File,
StringRef SearchPath,
StringRef RelativePath,
const Module *Imported) {
InclusionDirective::InclusionKind Kind = InclusionDirective::Include;
switch (IncludeTok.getIdentifierInfo()->getPPKeywordID()) {
case tok::pp_include:
Kind = InclusionDirective::Include;
break;
case tok::pp_import:
Kind = InclusionDirective::Import;
break;
case tok::pp_using:
Kind = InclusionDirective::Using;
break;
case tok::pp_include_next:
Kind = InclusionDirective::IncludeNext;
break;
case tok::pp___include_macros:
Kind = InclusionDirective::IncludeMacros;
break;
default:
llvm_unreachable("Unknown include directive kind");
}
SourceLocation EndLoc;
if (!IsAngled) {
EndLoc = FilenameRange.getBegin();
} else {
EndLoc = FilenameRange.getEnd();
if (FilenameRange.isCharRange())
EndLoc = EndLoc.getLocWithOffset(-1); // the InclusionDirective expects
// a token range.
}
clang::InclusionDirective *ID
= new (*this) clang::InclusionDirective(*this, Kind, FileName, !IsAngled,
File, SourceRange(HashLoc, EndLoc));
addPreprocessedEntity(ID);
}
void
Parser::diagnoseWhereClauseInGenericParamList(const GenericParamList *
GenericParams) {
if (GenericParams == nullptr || GenericParams->getWhereLoc().isInvalid())
return;
auto WhereRangeInsideBrackets = GenericParams->getWhereClauseSourceRange();
// Move everything immediately following the last generic parameter
// as written all the way to the right angle bracket (">")
auto LastGenericParam = GenericParams->getParams().back();
auto EndOfLastGenericParam =
Lexer::getLocForEndOfToken(SourceMgr, LastGenericParam->getEndLoc());
CharSourceRange RemoveWhereRange { SourceMgr,
EndOfLastGenericParam,
GenericParams->getRAngleLoc()
};
auto WhereCharRange =
Lexer::getCharSourceRangeFromSourceRange(SourceMgr,
GenericParams->getWhereClauseSourceRange());
SmallString<64> Buffer;
llvm::raw_svector_ostream WhereClauseText(Buffer);
WhereClauseText << SourceMgr.extractText(Tok.is(tok::kw_where)
? WhereCharRange
: RemoveWhereRange);
// If, for some reason, there was a where clause in both locations, we're
// adding to the list of requirements, so tack on a comma here before
// inserting it at the head of the later where clause.
if (Tok.is(tok::kw_where))
WhereClauseText << ',';
auto Diag = diagnose(WhereRangeInsideBrackets.Start,
diag::where_inside_brackets);
Diag.fixItRemoveChars(RemoveWhereRange.getStart(),
RemoveWhereRange.getEnd());
if (Tok.is(tok::kw_where)) {
Diag.fixItReplace(Tok.getLoc(), WhereClauseText.str());
} else {
Diag.fixItInsert(Lexer::getLocForEndOfToken(SourceMgr, PreviousLoc),
WhereClauseText.str());
}
}
void SourceManager::closeVirtualFile(SourceLoc end) {
auto *virtualFile = const_cast<VirtualFile *>(getVirtualFile(end));
if (!virtualFile) {
#ifndef NDEBUG
unsigned bufferID = findBufferContainingLoc(end);
CharSourceRange fullRange = getRangeForBuffer(bufferID);
assert((fullRange.getByteLength() == 0 ||
getVirtualFile(end.getAdvancedLoc(-1))) &&
"no open virtual file for this location");
assert(fullRange.getEnd() == end);
#endif
return;
}
CachedVFile = {nullptr, nullptr};
CharSourceRange oldRange = virtualFile->Range;
virtualFile->Range = CharSourceRange(*this, virtualFile->Range.getStart(),
end);
VirtualFiles[end.Value.getPointer()] = std::move(*virtualFile);
bool existed = VirtualFiles.erase(oldRange.getEnd().Value.getPointer());
assert(existed);
(void)existed;
}
void ReplaceAutoPtrCheck::check(const MatchFinder::MatchResult &Result) {
SourceManager &SM = *Result.SourceManager;
if (const auto *E =
Result.Nodes.getNodeAs<Expr>(AutoPtrOwnershipTransferId)) {
CharSourceRange Range = Lexer::makeFileCharRange(
CharSourceRange::getTokenRange(E->getSourceRange()), SM, LangOptions());
if (Range.isInvalid())
return;
auto Diag = diag(Range.getBegin(), "use std::move to transfer ownership")
<< FixItHint::CreateInsertion(Range.getBegin(), "std::move(")
<< FixItHint::CreateInsertion(Range.getEnd(), ")");
auto Insertion =
Inserter->CreateIncludeInsertion(SM.getMainFileID(), "utility",
/*IsAngled=*/true);
if (Insertion.hasValue())
Diag << Insertion.getValue();
return;
}
SourceLocation IdentifierLoc;
if (const auto *TL = Result.Nodes.getNodeAs<TypeLoc>(AutoPtrTokenId)) {
IdentifierLoc = locateFromTypeLoc(TL, SM);
} else if (const auto *D =
Result.Nodes.getNodeAs<UsingDecl>(AutoPtrTokenId)) {
IdentifierLoc = locateFromUsingDecl(D, SM);
} else {
llvm_unreachable("Bad Callback. No node provided.");
}
if (IdentifierLoc.isMacroID())
IdentifierLoc = SM.getSpellingLoc(IdentifierLoc);
// Ensure that only the 'auto_ptr' token is replaced and not the template
// aliases.
if (!checkTokenIsAutoPtr(IdentifierLoc, SM, LangOptions()))
return;
SourceLocation EndLoc =
IdentifierLoc.getLocWithOffset(strlen("auto_ptr") - 1);
diag(IdentifierLoc, "auto_ptr is deprecated, use unique_ptr instead")
<< FixItHint::CreateReplacement(SourceRange(IdentifierLoc, EndLoc),
"unique_ptr");
}
void RemoveUnusedEnumMember::removeEnumConstantDecl()
{
SourceLocation StartLoc = (*TheEnumIterator)->getLocStart();
if (StartLoc.isMacroID()) {
CharSourceRange Range = SrcManager->getExpansionRange(StartLoc);
StartLoc = Range.getBegin();
}
SourceLocation EndLoc = (*TheEnumIterator)->getLocEnd();
if (EndLoc.isMacroID()) {
CharSourceRange Range = SrcManager->getExpansionRange(EndLoc);
EndLoc = Range.getEnd();
}
SourceLocation CommaLoc = Lexer::findLocationAfterToken(
EndLoc, tok::comma, *SrcManager, Context->getLangOpts(),
/*SkipTrailingWhitespaceAndNewLine=*/false);
if (CommaLoc.isValid())
EndLoc = CommaLoc;
TheRewriter.RemoveText(SourceRange(StartLoc, EndLoc));
}
// Re-lex the tokens to get precise locations to insert 'override' and remove
// 'virtual'.
static SmallVector<Token, 16> ParseTokens(CharSourceRange Range,
const SourceManager &Sources,
LangOptions LangOpts) {
std::pair<FileID, unsigned> LocInfo =
Sources.getDecomposedLoc(Range.getBegin());
StringRef File = Sources.getBufferData(LocInfo.first);
const char *TokenBegin = File.data() + LocInfo.second;
Lexer RawLexer(Sources.getLocForStartOfFile(LocInfo.first), LangOpts,
File.begin(), TokenBegin, File.end());
SmallVector<Token, 16> Tokens;
Token Tok;
while (!RawLexer.LexFromRawLexer(Tok)) {
if (Tok.is(tok::semi) || Tok.is(tok::l_brace))
break;
if (Sources.isBeforeInTranslationUnit(Range.getEnd(), Tok.getLocation()))
break;
Tokens.push_back(Tok);
}
return Tokens;
}
static void printSourceRange(CharSourceRange range, ASTContext &Ctx,
raw_ostream &OS) {
SourceManager &SM = Ctx.getSourceManager();
const LangOptions &langOpts = Ctx.getLangOpts();
PresumedLoc PL = SM.getPresumedLoc(range.getBegin());
OS << llvm::sys::path::filename(PL.getFilename());
OS << " [" << PL.getLine() << ":"
<< PL.getColumn();
OS << " - ";
SourceLocation end = range.getEnd();
PL = SM.getPresumedLoc(end);
unsigned endCol = PL.getColumn() - 1;
if (!range.isTokenRange())
endCol += Lexer::MeasureTokenLength(end, SM, langOpts);
OS << PL.getLine() << ":" << endCol << "]";
}
void UpgradeDurationConversionsCheck::check(
const MatchFinder::MatchResult &Result) {
const llvm::StringRef Message =
"implicit conversion to 'int64_t' is deprecated in this context; use an "
"explicit cast instead";
const auto *ArgExpr = Result.Nodes.getNodeAs<Expr>("arg");
SourceLocation Loc = ArgExpr->getBeginLoc();
if (!match(isInTemplateInstantiation(), *ArgExpr, *Result.Context).empty()) {
if (MatchedTemplateLocations.count(Loc.getRawEncoding()) == 0) {
// For each location matched in a template instantiation, we check if the
// location can also be found in `MatchedTemplateLocations`. If it is not
// found, that means the expression did not create a match without the
// instantiation and depends on template parameters. A manual fix is
// probably required so we provide only a warning.
diag(Loc, Message);
}
return;
}
// We gather source locations from template matches not in template
// instantiations for future matches.
internal::Matcher<Stmt> IsInsideTemplate =
hasAncestor(decl(anyOf(classTemplateDecl(), functionTemplateDecl())));
if (!match(IsInsideTemplate, *ArgExpr, *Result.Context).empty())
MatchedTemplateLocations.insert(Loc.getRawEncoding());
DiagnosticBuilder Diag = diag(Loc, Message);
CharSourceRange SourceRange = Lexer::makeFileCharRange(
CharSourceRange::getTokenRange(ArgExpr->getSourceRange()),
*Result.SourceManager, Result.Context->getLangOpts());
if (SourceRange.isInvalid())
// An invalid source range likely means we are inside a macro body. A manual
// fix is likely needed so we do not create a fix-it hint.
return;
Diag << FixItHint::CreateInsertion(SourceRange.getBegin(),
"static_cast<int64_t>(")
<< FixItHint::CreateInsertion(SourceRange.getEnd(), ")");
}
void XCTMigrator::migrateInclude(llvm::StringRef Filename,
CharSourceRange FilenameRange,
SourceLocation HashLoc, bool isAngled) {
StringRef Parent = "SenTestingKit/";
if (!Filename.startswith(Parent))
return;
if (isFromSenTestInclude(HashLoc))
return;
edit::Commit commit(Editor);
StringRef HeaderName = Filename.substr(Parent.size());
llvm::StringMap<llvm::StringRef>::iterator I = IncludesMap.find(HeaderName);
if (I == IncludesMap.end() || I->second.empty()) {
commit.remove(CharSourceRange::getCharRange(HashLoc,FilenameRange.getEnd()));
} else {
SmallString<128> NewInclude;
NewInclude.push_back(isAngled ? '<' : '"');
NewInclude += "XCTest/";
NewInclude += I->second;
NewInclude.push_back(isAngled ? '>' : '"');
commit.replace(FilenameRange, NewInclude.str());
}
Editor.commit(commit);
}
bool Rewriter::IncreaseIndentation(CharSourceRange range,
SourceLocation parentIndent) {
if (range.isInvalid()) return true;
if (!isRewritable(range.getBegin())) return true;
if (!isRewritable(range.getEnd())) return true;
if (!isRewritable(parentIndent)) return true;
FileID StartFileID, EndFileID, parentFileID;
unsigned StartOff, EndOff, parentOff;
StartOff = getLocationOffsetAndFileID(range.getBegin(), StartFileID);
EndOff = getLocationOffsetAndFileID(range.getEnd(), EndFileID);
parentOff = getLocationOffsetAndFileID(parentIndent, parentFileID);
if (StartFileID != EndFileID || StartFileID != parentFileID)
return true;
if (StartOff > EndOff)
return true;
FileID FID = StartFileID;
StringRef MB = SourceMgr->getBufferData(FID);
unsigned parentLineNo = SourceMgr->getLineNumber(FID, parentOff) - 1;
unsigned startLineNo = SourceMgr->getLineNumber(FID, StartOff) - 1;
unsigned endLineNo = SourceMgr->getLineNumber(FID, EndOff) - 1;
const SrcMgr::ContentCache *
Content = SourceMgr->getSLocEntry(FID).getFile().getContentCache();
// Find where the lines start.
unsigned parentLineOffs = Content->SourceLineCache[parentLineNo];
unsigned startLineOffs = Content->SourceLineCache[startLineNo];
// Find the whitespace at the start of each line.
StringRef parentSpace, startSpace;
{
unsigned i = parentLineOffs;
while (isWhitespace(MB[i]))
++i;
parentSpace = MB.substr(parentLineOffs, i-parentLineOffs);
i = startLineOffs;
while (isWhitespace(MB[i]))
++i;
startSpace = MB.substr(startLineOffs, i-startLineOffs);
}
if (parentSpace.size() >= startSpace.size())
return true;
if (!startSpace.startswith(parentSpace))
return true;
StringRef indent = startSpace.substr(parentSpace.size());
// Indent the lines between start/end offsets.
RewriteBuffer &RB = getEditBuffer(FID);
for (unsigned lineNo = startLineNo; lineNo <= endLineNo; ++lineNo) {
unsigned offs = Content->SourceLineCache[lineNo];
unsigned i = offs;
while (isWhitespace(MB[i]))
++i;
StringRef origIndent = MB.substr(offs, i-offs);
if (origIndent.startswith(startSpace))
RB.InsertText(offs, indent, /*InsertAfter=*/false);
}
return false;
}
void UseOverride::check(const MatchFinder::MatchResult &Result) {
const FunctionDecl *Method = Result.Nodes.getStmtAs<FunctionDecl>("method");
const SourceManager &Sources = *Result.SourceManager;
assert(Method != nullptr);
if (Method->getInstantiatedFromMemberFunction() != nullptr)
Method = Method->getInstantiatedFromMemberFunction();
if (Method->isImplicit() || Method->getLocation().isMacroID() ||
Method->isOutOfLine())
return;
bool HasVirtual = Method->isVirtualAsWritten();
bool HasOverride = Method->getAttr<OverrideAttr>();
bool HasFinal = Method->getAttr<FinalAttr>();
bool OnlyVirtualSpecified = HasVirtual && !HasOverride && !HasFinal;
unsigned KeywordCount = HasVirtual + HasOverride + HasFinal;
if (!OnlyVirtualSpecified && KeywordCount == 1)
return; // Nothing to do.
DiagnosticBuilder Diag = diag(
Method->getLocation(),
OnlyVirtualSpecified
? "Prefer using 'override' or (rarely) 'final' instead of 'virtual'"
: "Annotate this function with 'override' or (rarely) 'final'");
CharSourceRange FileRange = Lexer::makeFileCharRange(
CharSourceRange::getTokenRange(Method->getSourceRange()), Sources,
Result.Context->getLangOpts());
if (!FileRange.isValid())
return;
// FIXME: Instead of re-lexing and looking for specific macros such as
// 'ABSTRACT', properly store the location of 'virtual' and '= 0' in each
// FunctionDecl.
SmallVector<Token, 16> Tokens = ParseTokens(FileRange, Result);
// Add 'override' on inline declarations that don't already have it.
if (!HasFinal && !HasOverride) {
SourceLocation InsertLoc;
StringRef ReplacementText = "override ";
for (Token T : Tokens) {
if (T.is(tok::kw___attribute)) {
InsertLoc = T.getLocation();
break;
}
}
if (Method->hasAttrs()) {
for (const clang::Attr *A : Method->getAttrs()) {
if (!A->isImplicit()) {
SourceLocation Loc =
Sources.getExpansionLoc(A->getRange().getBegin());
if (!InsertLoc.isValid() ||
Sources.isBeforeInTranslationUnit(Loc, InsertLoc))
InsertLoc = Loc;
}
}
}
if (InsertLoc.isInvalid() && Method->doesThisDeclarationHaveABody() &&
Method->getBody() && !Method->isDefaulted())
InsertLoc = Method->getBody()->getLocStart();
if (!InsertLoc.isValid()) {
if (Tokens.size() > 2 && GetText(Tokens.back(), Sources) == "0" &&
GetText(Tokens[Tokens.size() - 2], Sources) == "=") {
InsertLoc = Tokens[Tokens.size() - 2].getLocation();
} else if (GetText(Tokens.back(), Sources) == "ABSTRACT") {
InsertLoc = Tokens.back().getLocation();
}
}
if (!InsertLoc.isValid()) {
InsertLoc = FileRange.getEnd();
ReplacementText = " override";
}
Diag << FixItHint::CreateInsertion(InsertLoc, ReplacementText);
}
if (HasFinal && HasOverride) {
SourceLocation OverrideLoc = Method->getAttr<OverrideAttr>()->getLocation();
Diag << FixItHint::CreateRemoval(
CharSourceRange::getTokenRange(OverrideLoc, OverrideLoc));
}
if (Method->isVirtualAsWritten()) {
for (Token Tok : Tokens) {
if (Tok.is(tok::kw_virtual)) {
Diag << FixItHint::CreateRemoval(CharSourceRange::getTokenRange(
Tok.getLocation(), Tok.getLocation()));
break;
}
}
}
}
void UseOverrideCheck::check(const MatchFinder::MatchResult &Result) {
const auto *Method = Result.Nodes.getNodeAs<FunctionDecl>("method");
const SourceManager &Sources = *Result.SourceManager;
assert(Method != nullptr);
if (Method->getInstantiatedFromMemberFunction() != nullptr)
Method = Method->getInstantiatedFromMemberFunction();
if (Method->isImplicit() || Method->getLocation().isMacroID() ||
Method->isOutOfLine())
return;
bool HasVirtual = Method->isVirtualAsWritten();
bool HasOverride = Method->getAttr<OverrideAttr>();
bool HasFinal = Method->getAttr<FinalAttr>();
bool OnlyVirtualSpecified = HasVirtual && !HasOverride && !HasFinal;
unsigned KeywordCount = HasVirtual + HasOverride + HasFinal;
if (!OnlyVirtualSpecified && KeywordCount == 1)
return; // Nothing to do.
std::string Message;
if (OnlyVirtualSpecified) {
Message =
"prefer using 'override' or (rarely) 'final' instead of 'virtual'";
} else if (KeywordCount == 0) {
Message = "annotate this function with 'override' or (rarely) 'final'";
} else {
StringRef Redundant =
HasVirtual ? (HasOverride && HasFinal ? "'virtual' and 'override' are"
: "'virtual' is")
: "'override' is";
StringRef Correct = HasFinal ? "'final'" : "'override'";
Message = (llvm::Twine(Redundant) +
" redundant since the function is already declared " + Correct)
.str();
}
DiagnosticBuilder Diag = diag(Method->getLocation(), Message);
CharSourceRange FileRange = Lexer::makeFileCharRange(
CharSourceRange::getTokenRange(Method->getSourceRange()), Sources,
getLangOpts());
if (!FileRange.isValid())
return;
// FIXME: Instead of re-lexing and looking for specific macros such as
// 'ABSTRACT', properly store the location of 'virtual' and '= 0' in each
// FunctionDecl.
SmallVector<Token, 16> Tokens = ParseTokens(FileRange, Result);
// Add 'override' on inline declarations that don't already have it.
if (!HasFinal && !HasOverride) {
SourceLocation InsertLoc;
StringRef ReplacementText = "override ";
SourceLocation MethodLoc = Method->getLocation();
for (Token T : Tokens) {
if (T.is(tok::kw___attribute) &&
!Sources.isBeforeInTranslationUnit(T.getLocation(), MethodLoc)) {
InsertLoc = T.getLocation();
break;
}
}
if (Method->hasAttrs()) {
for (const clang::Attr *A : Method->getAttrs()) {
if (!A->isImplicit() && !A->isInherited()) {
SourceLocation Loc =
Sources.getExpansionLoc(A->getRange().getBegin());
if ((!InsertLoc.isValid() ||
Sources.isBeforeInTranslationUnit(Loc, InsertLoc)) &&
!Sources.isBeforeInTranslationUnit(Loc, MethodLoc))
InsertLoc = Loc;
}
}
}
if (InsertLoc.isInvalid() && Method->doesThisDeclarationHaveABody() &&
Method->getBody() && !Method->isDefaulted()) {
// For methods with inline definition, add the override keyword at the
// end of the declaration of the function, but prefer to put it on the
// same line as the declaration if the beginning brace for the start of
// the body falls on the next line.
Token LastNonCommentToken;
for (Token T : Tokens) {
if (!T.is(tok::comment)) {
LastNonCommentToken = T;
}
}
InsertLoc = LastNonCommentToken.getEndLoc();
ReplacementText = " override";
}
if (!InsertLoc.isValid()) {
// For declarations marked with "= 0" or "= [default|delete]", the end
// location will point until after those markings. Therefore, the override
// keyword shouldn't be inserted at the end, but before the '='.
if (Tokens.size() > 2 && (GetText(Tokens.back(), Sources) == "0" ||
Tokens.back().is(tok::kw_default) ||
Tokens.back().is(tok::kw_delete)) &&
GetText(Tokens[Tokens.size() - 2], Sources) == "=") {
InsertLoc = Tokens[Tokens.size() - 2].getLocation();
// Check if we need to insert a space.
if ((Tokens[Tokens.size() - 2].getFlags() & Token::LeadingSpace) == 0)
ReplacementText = " override ";
} else if (GetText(Tokens.back(), Sources) == "ABSTRACT") {
InsertLoc = Tokens.back().getLocation();
}
}
if (!InsertLoc.isValid()) {
InsertLoc = FileRange.getEnd();
ReplacementText = " override";
}
Diag << FixItHint::CreateInsertion(InsertLoc, ReplacementText);
}
if (HasFinal && HasOverride) {
SourceLocation OverrideLoc = Method->getAttr<OverrideAttr>()->getLocation();
Diag << FixItHint::CreateRemoval(
CharSourceRange::getTokenRange(OverrideLoc, OverrideLoc));
}
if (HasVirtual) {
for (Token Tok : Tokens) {
if (Tok.is(tok::kw_virtual)) {
Diag << FixItHint::CreateRemoval(CharSourceRange::getTokenRange(
Tok.getLocation(), Tok.getLocation()));
break;
}
}
}
}
