bool formatAndApplyAllReplacements(
const std::map<std::string, Replacements> &FileToReplaces, Rewriter &Rewrite,
StringRef Style) {
SourceManager &SM = Rewrite.getSourceMgr();
FileManager &Files = SM.getFileManager();
bool Result = true;
for (const auto &FileAndReplaces : groupReplacementsByFile(FileToReplaces)) {
const std::string &FilePath = FileAndReplaces.first;
auto &CurReplaces = FileAndReplaces.second;
const FileEntry *Entry = Files.getFile(FilePath);
FileID ID = SM.getOrCreateFileID(Entry, SrcMgr::C_User);
StringRef Code = SM.getBufferData(ID);
format::FormatStyle CurStyle = format::getStyle(Style, FilePath, "LLVM");
auto NewReplacements =
format::formatReplacements(Code, CurReplaces, CurStyle);
if (!NewReplacements) {
llvm::errs() << llvm::toString(NewReplacements.takeError()) << "\n";
return false;
}
Result = applyAllReplacements(*NewReplacements, Rewrite) && Result;
}
return Result;
}
extern "C" void TestOneInput(uint8_t *data, size_t size) {
// FIXME: fuzz more things: different styles, different style features.
std::string s((const char *)data, size);
auto Style = getGoogleStyle(clang::format::FormatStyle::LK_Cpp);
Style.ColumnLimit = 60;
applyAllReplacements(s, clang::format::reformat(
Style, s, {clang::tooling::Range(0, s.size())}));
}
TEST_F(FlushRewrittenFilesTest, StoresChangesOnDisk) {
FileID ID = createFile("input.cpp", "line1\nline2\nline3\nline4");
Replacements Replaces;
Replaces.insert(Replacement(Context.Sources, Context.getLocation(ID, 2, 1),
5, "replaced"));
EXPECT_TRUE(applyAllReplacements(Replaces, Context.Rewrite));
EXPECT_FALSE(Context.Rewrite.overwriteChangedFiles());
EXPECT_EQ("line1\nreplaced\nline3\nline4",
getFileContentFromDisk("input.cpp"));
}
static std::string format(llvm::StringRef Code, unsigned Offset,
unsigned Length, const FormatStyle &Style) {
DEBUG(llvm::errs() << "---\n");
DEBUG(llvm::errs() << Code << "\n\n");
std::vector<tooling::Range> Ranges(1, tooling::Range(Offset, Length));
tooling::Replacements Replaces = reformat(Style, Code, Ranges);
std::string Result = applyAllReplacements(Code, Replaces);
EXPECT_NE("", Result);
DEBUG(llvm::errs() << "\n" << Result << "\n\n");
return Result;
}
TEST_F(ReplacementTest, CanApplyReplacements) {
FileID ID = Context.createInMemoryFile("input.cpp",
"line1\nline2\nline3\nline4");
Replacements Replaces;
Replaces.insert(Replacement(Context.Sources, Context.getLocation(ID, 2, 1),
5, "replaced"));
Replaces.insert(Replacement(Context.Sources, Context.getLocation(ID, 3, 1),
5, "other"));
EXPECT_TRUE(applyAllReplacements(Replaces, Context.Rewrite));
EXPECT_EQ("line1\nreplaced\nother\nline4", Context.getRewrittenText(ID));
}
static std::string format(llvm::StringRef Code, unsigned Offset,
unsigned Length, const FormatStyle &Style) {
LLVM_DEBUG(llvm::errs() << "---\n");
LLVM_DEBUG(llvm::errs() << Code << "\n\n");
std::vector<tooling::Range> Ranges(1, tooling::Range(Offset, Length));
tooling::Replacements Replaces = reformat(Style, Code, Ranges);
auto Result = applyAllReplacements(Code, Replaces);
EXPECT_TRUE(static_cast<bool>(Result));
LLVM_DEBUG(llvm::errs() << "\n" << *Result << "\n\n");
return *Result;
}
TEST_F(ReplacementTest, ApplyAllFailsIfOneApplyFails) {
// This test depends on the value of the file name of an invalid source
// location being in the range ]a, z[.
FileID IDa = Context.createInMemoryFile("a.cpp", "text");
FileID IDz = Context.createInMemoryFile("z.cpp", "text");
Replacements Replaces;
Replaces.insert(Replacement(Context.Sources, Context.getLocation(IDa, 1, 1),
4, "a"));
Replaces.insert(Replacement(Context.Sources, SourceLocation(),
5, "2"));
Replaces.insert(Replacement(Context.Sources, Context.getLocation(IDz, 1, 1),
4, "z"));
EXPECT_FALSE(applyAllReplacements(Replaces, Context.Rewrite));
EXPECT_EQ("a", Context.getRewrittenText(IDa));
EXPECT_EQ("z", Context.getRewrittenText(IDz));
}
std::string format(llvm::StringRef Code, unsigned Offset, unsigned Length,
const FormatStyle &Style) {
RewriterTestContext Context;
FileID ID = Context.createInMemoryFile("input.cc", Code);
SourceLocation Start =
Context.Sources.getLocForStartOfFile(ID).getLocWithOffset(Offset);
std::vector<CharSourceRange> Ranges(
1,
CharSourceRange::getCharRange(Start, Start.getLocWithOffset(Length)));
LangOptions LangOpts;
LangOpts.CPlusPlus = 1;
Lexer Lex(ID, Context.Sources.getBuffer(ID), Context.Sources, LangOpts);
tooling::Replacements Replace =
reformat(Style, Lex, Context.Sources, Ranges);
EXPECT_TRUE(applyAllReplacements(Replace, Context.Rewrite));
return Context.getRewrittenText(ID);
}
std::string
RefactoringTool::transform(CustomToolInvocation& invocation,
clang::tooling::FrontendActionFactory *actionFactory)
{
invocation.run(actionFactory->create());
//create rewriter
clang::LangOptions defaultLangOptions;
clang::Rewriter rewriter(invocation.getSources(), defaultLangOptions);
if (_replacements.empty()) {
return invocation.code();
}
// apply replacements
applyAllReplacements(_replacements, rewriter);
// create replacements
_replacements.clear();
// write replacements to buffer
return writeReplacements(rewriter);
}
int RefactoringTool::runAndSave(FrontendActionFactory *ActionFactory) {
if (int Result = run(ActionFactory)) {
return Result;
}
LangOptions DefaultLangOptions;
IntrusiveRefCntPtr<DiagnosticOptions> DiagOpts = new DiagnosticOptions();
TextDiagnosticPrinter DiagnosticPrinter(llvm::errs(), &*DiagOpts);
DiagnosticsEngine Diagnostics(
IntrusiveRefCntPtr<DiagnosticIDs>(new DiagnosticIDs()),
&*DiagOpts, &DiagnosticPrinter, false);
SourceManager Sources(Diagnostics, getFiles());
Rewriter Rewrite(Sources, DefaultLangOptions);
if (!applyAllReplacements(Rewrite)) {
llvm::errs() << "Skipped some replacements.\n";
}
return saveRewrittenFiles(Rewrite);
}
int RefactoringTool::run(FrontendActionFactory *ActionFactory) {
int Result = Tool.run(ActionFactory);
LangOptions DefaultLangOptions;
DiagnosticOptions DefaultDiagnosticOptions;
TextDiagnosticPrinter DiagnosticPrinter(llvm::errs(),
DefaultDiagnosticOptions);
DiagnosticsEngine Diagnostics(
llvm::IntrusiveRefCntPtr<DiagnosticIDs>(new DiagnosticIDs()),
&DiagnosticPrinter, false);
SourceManager Sources(Diagnostics, Tool.getFiles());
Rewriter Rewrite(Sources, DefaultLangOptions);
if (!applyAllReplacements(Replace, Rewrite)) {
llvm::errs() << "Skipped some replacements.\n";
}
if (!saveRewrittenFiles(Rewrite)) {
llvm::errs() << "Could not save rewritten files.\n";
return 1;
}
return Result;
}