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-rw-r--r--contrib/llvm/lib/Support/CommandLine.cpp166
1 files changed, 95 insertions, 71 deletions
diff --git a/contrib/llvm/lib/Support/CommandLine.cpp b/contrib/llvm/lib/Support/CommandLine.cpp
index 44a88d81e3a0..586eceae757f 100644
--- a/contrib/llvm/lib/Support/CommandLine.cpp
+++ b/contrib/llvm/lib/Support/CommandLine.cpp
@@ -18,7 +18,6 @@
#include "llvm/Support/CommandLine.h"
#include "llvm/ADT/ArrayRef.h"
-#include "llvm/ADT/OwningPtr.h"
#include "llvm/ADT/SmallPtrSet.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/ADT/StringMap.h"
@@ -32,13 +31,15 @@
#include "llvm/Support/MemoryBuffer.h"
#include "llvm/Support/Path.h"
#include "llvm/Support/raw_ostream.h"
-#include "llvm/Support/system_error.h"
#include <cerrno>
#include <cstdlib>
#include <map>
+#include <system_error>
using namespace llvm;
using namespace cl;
+#define DEBUG_TYPE "commandline"
+
//===----------------------------------------------------------------------===//
// Template instantiations and anchors.
//
@@ -82,7 +83,7 @@ void StringSaver::anchor() {}
// Globals for name and overview of program. Program name is not a string to
// avoid static ctor/dtor issues.
static char ProgramName[80] = "<premain>";
-static const char *ProgramOverview = 0;
+static const char *ProgramOverview = nullptr;
// This collects additional help to be printed.
static ManagedStatic<std::vector<const char*> > MoreHelp;
@@ -101,16 +102,23 @@ void cl::MarkOptionsChanged() {
/// RegisteredOptionList - This is the list of the command line options that
/// have statically constructed themselves.
-static Option *RegisteredOptionList = 0;
+static Option *RegisteredOptionList = nullptr;
void Option::addArgument() {
- assert(NextRegistered == 0 && "argument multiply registered!");
+ assert(!NextRegistered && "argument multiply registered!");
NextRegistered = RegisteredOptionList;
RegisteredOptionList = this;
MarkOptionsChanged();
}
+void Option::removeArgument() {
+ assert(NextRegistered && "argument never registered");
+ assert(RegisteredOptionList == this && "argument is not the last registered");
+ RegisteredOptionList = NextRegistered;
+ MarkOptionsChanged();
+}
+
// This collects the different option categories that have been registered.
typedef SmallPtrSet<OptionCategory*,16> OptionCatSet;
static ManagedStatic<OptionCatSet> RegisteredOptionCategories;
@@ -118,8 +126,13 @@ static ManagedStatic<OptionCatSet> RegisteredOptionCategories;
// Initialise the general option category.
OptionCategory llvm::cl::GeneralCategory("General options");
-void OptionCategory::registerCategory()
-{
+void OptionCategory::registerCategory() {
+ assert(std::count_if(RegisteredOptionCategories->begin(),
+ RegisteredOptionCategories->end(),
+ [this](const OptionCategory *Category) {
+ return getName() == Category->getName();
+ }) == 0 && "Duplicate option categories");
+
RegisteredOptionCategories->insert(this);
}
@@ -132,8 +145,9 @@ void OptionCategory::registerCategory()
static void GetOptionInfo(SmallVectorImpl<Option*> &PositionalOpts,
SmallVectorImpl<Option*> &SinkOpts,
StringMap<Option*> &OptionsMap) {
+ bool HadErrors = false;
SmallVector<const char*, 16> OptionNames;
- Option *CAOpt = 0; // The ConsumeAfter option if it exists.
+ Option *CAOpt = nullptr; // The ConsumeAfter option if it exists.
for (Option *O = RegisteredOptionList; O; O = O->getNextRegisteredOption()) {
// If this option wants to handle multiple option names, get the full set.
// This handles enum options like "-O1 -O2" etc.
@@ -145,8 +159,9 @@ static void GetOptionInfo(SmallVectorImpl<Option*> &PositionalOpts,
for (size_t i = 0, e = OptionNames.size(); i != e; ++i) {
// Add argument to the argument map!
if (OptionsMap.GetOrCreateValue(OptionNames[i], O).second != O) {
- errs() << ProgramName << ": CommandLine Error: Argument '"
- << OptionNames[i] << "' defined more than once!\n";
+ errs() << ProgramName << ": CommandLine Error: Option '"
+ << OptionNames[i] << "' registered more than once!\n";
+ HadErrors = true;
}
}
@@ -158,8 +173,10 @@ static void GetOptionInfo(SmallVectorImpl<Option*> &PositionalOpts,
else if (O->getMiscFlags() & cl::Sink) // Remember sink options
SinkOpts.push_back(O);
else if (O->getNumOccurrencesFlag() == cl::ConsumeAfter) {
- if (CAOpt)
+ if (CAOpt) {
O->error("Cannot specify more than one option with cl::ConsumeAfter!");
+ HadErrors = true;
+ }
CAOpt = O;
}
}
@@ -169,6 +186,12 @@ static void GetOptionInfo(SmallVectorImpl<Option*> &PositionalOpts,
// Make sure that they are in order of registration not backwards.
std::reverse(PositionalOpts.begin(), PositionalOpts.end());
+
+ // Fail hard if there were errors. These are strictly unrecoverable and
+ // indicate serious issues such as conflicting option names or an incorrectly
+ // linked LLVM distribution.
+ if (HadErrors)
+ report_fatal_error("inconsistency in registered CommandLine options");
}
@@ -178,7 +201,7 @@ static void GetOptionInfo(SmallVectorImpl<Option*> &PositionalOpts,
static Option *LookupOption(StringRef &Arg, StringRef &Value,
const StringMap<Option*> &OptionsMap) {
// Reject all dashes.
- if (Arg.empty()) return 0;
+ if (Arg.empty()) return nullptr;
size_t EqualPos = Arg.find('=');
@@ -186,14 +209,14 @@ static Option *LookupOption(StringRef &Arg, StringRef &Value,
if (EqualPos == StringRef::npos) {
// Look up the option.
StringMap<Option*>::const_iterator I = OptionsMap.find(Arg);
- return I != OptionsMap.end() ? I->second : 0;
+ return I != OptionsMap.end() ? I->second : nullptr;
}
// If the argument before the = is a valid option name, we match. If not,
// return Arg unmolested.
StringMap<Option*>::const_iterator I =
OptionsMap.find(Arg.substr(0, EqualPos));
- if (I == OptionsMap.end()) return 0;
+ if (I == OptionsMap.end()) return nullptr;
Value = Arg.substr(EqualPos+1);
Arg = Arg.substr(0, EqualPos);
@@ -208,7 +231,7 @@ static Option *LookupNearestOption(StringRef Arg,
const StringMap<Option*> &OptionsMap,
std::string &NearestString) {
// Reject all dashes.
- if (Arg.empty()) return 0;
+ if (Arg.empty()) return nullptr;
// Split on any equal sign.
std::pair<StringRef, StringRef> SplitArg = Arg.split('=');
@@ -216,7 +239,7 @@ static Option *LookupNearestOption(StringRef Arg,
StringRef &RHS = SplitArg.second;
// Find the closest match.
- Option *Best = 0;
+ Option *Best = nullptr;
unsigned BestDistance = 0;
for (StringMap<Option*>::const_iterator it = OptionsMap.begin(),
ie = OptionsMap.end(); it != ie; ++it) {
@@ -246,12 +269,11 @@ static Option *LookupNearestOption(StringRef Arg,
return Best;
}
-/// CommaSeparateAndAddOccurence - A wrapper around Handler->addOccurence() that
-/// does special handling of cl::CommaSeparated options.
-static bool CommaSeparateAndAddOccurence(Option *Handler, unsigned pos,
- StringRef ArgName,
- StringRef Value, bool MultiArg = false)
-{
+/// CommaSeparateAndAddOccurrence - A wrapper around Handler->addOccurrence()
+/// that does special handling of cl::CommaSeparated options.
+static bool CommaSeparateAndAddOccurrence(Option *Handler, unsigned pos,
+ StringRef ArgName, StringRef Value,
+ bool MultiArg = false) {
// Check to see if this option accepts a comma separated list of values. If
// it does, we have to split up the value into multiple values.
if (Handler->getMiscFlags() & CommaSeparated) {
@@ -290,7 +312,7 @@ static inline bool ProvideOption(Option *Handler, StringRef ArgName,
// Enforce value requirements
switch (Handler->getValueExpectedFlag()) {
case ValueRequired:
- if (Value.data() == 0) { // No value specified?
+ if (!Value.data()) { // No value specified?
if (i+1 >= argc)
return Handler->error("requires a value!");
// Steal the next argument, like for '-o filename'
@@ -312,13 +334,13 @@ static inline bool ProvideOption(Option *Handler, StringRef ArgName,
// If this isn't a multi-arg option, just run the handler.
if (NumAdditionalVals == 0)
- return CommaSeparateAndAddOccurence(Handler, i, ArgName, Value);
+ return CommaSeparateAndAddOccurrence(Handler, i, ArgName, Value);
// If it is, run the handle several times.
bool MultiArg = false;
if (Value.data()) {
- if (CommaSeparateAndAddOccurence(Handler, i, ArgName, Value, MultiArg))
+ if (CommaSeparateAndAddOccurrence(Handler, i, ArgName, Value, MultiArg))
return true;
--NumAdditionalVals;
MultiArg = true;
@@ -329,7 +351,7 @@ static inline bool ProvideOption(Option *Handler, StringRef ArgName,
return Handler->error("not enough values!");
Value = argv[++i];
- if (CommaSeparateAndAddOccurence(Handler, i, ArgName, Value, MultiArg))
+ if (CommaSeparateAndAddOccurrence(Handler, i, ArgName, Value, MultiArg))
return true;
MultiArg = true;
--NumAdditionalVals;
@@ -339,7 +361,7 @@ static inline bool ProvideOption(Option *Handler, StringRef ArgName,
static bool ProvidePositionalOption(Option *Handler, StringRef Arg, int i) {
int Dummy = i;
- return ProvideOption(Handler, Handler->ArgStr, Arg, 0, 0, Dummy);
+ return ProvideOption(Handler, Handler->ArgStr, Arg, 0, nullptr, Dummy);
}
@@ -375,7 +397,7 @@ static Option *getOptionPred(StringRef Name, size_t &Length,
Length = Name.size();
return OMI->second; // Found one!
}
- return 0; // No option found!
+ return nullptr; // No option found!
}
/// HandlePrefixedOrGroupedOption - The specified argument string (which started
@@ -385,12 +407,12 @@ static Option *getOptionPred(StringRef Name, size_t &Length,
static Option *HandlePrefixedOrGroupedOption(StringRef &Arg, StringRef &Value,
bool &ErrorParsing,
const StringMap<Option*> &OptionsMap) {
- if (Arg.size() == 1) return 0;
+ if (Arg.size() == 1) return nullptr;
// Do the lookup!
size_t Length = 0;
Option *PGOpt = getOptionPred(Arg, Length, isPrefixedOrGrouping, OptionsMap);
- if (PGOpt == 0) return 0;
+ if (!PGOpt) return nullptr;
// If the option is a prefixed option, then the value is simply the
// rest of the name... so fall through to later processing, by
@@ -417,7 +439,7 @@ static Option *HandlePrefixedOrGroupedOption(StringRef &Arg, StringRef &Value,
"Option can not be cl::Grouping AND cl::ValueRequired!");
int Dummy = 0;
ErrorParsing |= ProvideOption(PGOpt, OneArgName,
- StringRef(), 0, 0, Dummy);
+ StringRef(), 0, nullptr, Dummy);
// Get the next grouping option.
PGOpt = getOptionPred(Arg, Length, isGrouping, OptionsMap);
@@ -609,9 +631,11 @@ void cl::TokenizeWindowsCommandLine(StringRef Src, StringSaver &Saver,
static bool ExpandResponseFile(const char *FName, StringSaver &Saver,
TokenizerCallback Tokenizer,
SmallVectorImpl<const char *> &NewArgv) {
- OwningPtr<MemoryBuffer> MemBuf;
- if (MemoryBuffer::getFile(FName, MemBuf))
+ ErrorOr<std::unique_ptr<MemoryBuffer>> MemBufOrErr =
+ MemoryBuffer::getFile(FName);
+ if (!MemBufOrErr)
return false;
+ std::unique_ptr<MemoryBuffer> MemBuf = std::move(MemBufOrErr.get());
StringRef Str(MemBuf->getBufferStart(), MemBuf->getBufferSize());
// If we have a UTF-16 byte order mark, convert to UTF-8 for parsing.
@@ -634,7 +658,7 @@ static bool ExpandResponseFile(const char *FName, StringSaver &Saver,
bool cl::ExpandResponseFiles(StringSaver &Saver, TokenizerCallback Tokenizer,
SmallVectorImpl<const char *> &Argv) {
unsigned RspFiles = 0;
- bool AllExpanded = false;
+ bool AllExpanded = true;
// Don't cache Argv.size() because it can change.
for (unsigned I = 0; I != Argv.size(); ) {
@@ -655,7 +679,10 @@ bool cl::ExpandResponseFiles(StringSaver &Saver, TokenizerCallback Tokenizer,
// the cwd of the process or the response file?
SmallVector<const char *, 0> ExpandedArgv;
if (!ExpandResponseFile(Arg + 1, Saver, Tokenizer, ExpandedArgv)) {
+ // We couldn't read this file, so we leave it in the argument stream and
+ // move on.
AllExpanded = false;
+ ++I;
continue;
}
Argv.erase(Argv.begin() + I);
@@ -675,7 +702,7 @@ namespace {
free(Dup);
}
}
- const char *SaveString(const char *Str) LLVM_OVERRIDE {
+ const char *SaveString(const char *Str) override {
char *Dup = strdup(Str);
Dups.push_back(Dup);
return Dup;
@@ -733,7 +760,7 @@ void cl::ParseCommandLineOptions(int argc, const char * const *argv,
argc = static_cast<int>(newArgv.size());
// Copy the program name into ProgName, making sure not to overflow it.
- std::string ProgName = sys::path::filename(argv[0]);
+ StringRef ProgName = sys::path::filename(argv[0]);
size_t Len = std::min(ProgName.size(), size_t(79));
memcpy(ProgramName, ProgName.data(), Len);
ProgramName[Len] = '\0';
@@ -747,7 +774,7 @@ void cl::ParseCommandLineOptions(int argc, const char * const *argv,
// Determine whether or not there are an unlimited number of positionals
bool HasUnlimitedPositionals = false;
- Option *ConsumeAfterOpt = 0;
+ Option *ConsumeAfterOpt = nullptr;
if (!PositionalOpts.empty()) {
if (PositionalOpts[0]->getNumOccurrencesFlag() == cl::ConsumeAfter) {
assert(PositionalOpts.size() > 1 &&
@@ -757,7 +784,7 @@ void cl::ParseCommandLineOptions(int argc, const char * const *argv,
// Calculate how many positional values are _required_.
bool UnboundedFound = false;
- for (size_t i = ConsumeAfterOpt != 0, e = PositionalOpts.size();
+ for (size_t i = ConsumeAfterOpt ? 1 : 0, e = PositionalOpts.size();
i != e; ++i) {
Option *Opt = PositionalOpts[i];
if (RequiresValue(Opt))
@@ -793,13 +820,13 @@ void cl::ParseCommandLineOptions(int argc, const char * const *argv,
// If the program has named positional arguments, and the name has been run
// across, keep track of which positional argument was named. Otherwise put
// the positional args into the PositionalVals list...
- Option *ActivePositionalArg = 0;
+ Option *ActivePositionalArg = nullptr;
// Loop over all of the arguments... processing them.
bool DashDashFound = false; // Have we read '--'?
for (int i = 1; i < argc; ++i) {
- Option *Handler = 0;
- Option *NearestHandler = 0;
+ Option *Handler = nullptr;
+ Option *NearestHandler = nullptr;
std::string NearestHandlerString;
StringRef Value;
StringRef ArgName = "";
@@ -832,8 +859,7 @@ void cl::ParseCommandLineOptions(int argc, const char * const *argv,
// All of the positional arguments have been fulfulled, give the rest to
// the consume after option... if it's specified...
//
- if (PositionalVals.size() >= NumPositionalRequired &&
- ConsumeAfterOpt != 0) {
+ if (PositionalVals.size() >= NumPositionalRequired && ConsumeAfterOpt) {
for (++i; i < argc; ++i)
PositionalVals.push_back(std::make_pair(argv[i],i));
break; // Handle outside of the argument processing loop...
@@ -871,18 +897,18 @@ void cl::ParseCommandLineOptions(int argc, const char * const *argv,
Handler = LookupOption(ArgName, Value, Opts);
// Check to see if this "option" is really a prefixed or grouped argument.
- if (Handler == 0)
+ if (!Handler)
Handler = HandlePrefixedOrGroupedOption(ArgName, Value,
ErrorParsing, Opts);
// Otherwise, look for the closest available option to report to the user
// in the upcoming error.
- if (Handler == 0 && SinkOpts.empty())
+ if (!Handler && SinkOpts.empty())
NearestHandler = LookupNearestOption(ArgName, Opts,
NearestHandlerString);
}
- if (Handler == 0) {
+ if (!Handler) {
if (SinkOpts.empty()) {
errs() << ProgramName << ": Unknown command line argument '"
<< argv[i] << "'. Try: '" << argv[0] << " -help'\n";
@@ -926,7 +952,7 @@ void cl::ParseCommandLineOptions(int argc, const char * const *argv,
<< " positional arguments: See: " << argv[0] << " -help\n";
ErrorParsing = true;
- } else if (ConsumeAfterOpt == 0) {
+ } else if (!ConsumeAfterOpt) {
// Positional args have already been handled if ConsumeAfter is specified.
unsigned ValNo = 0, NumVals = static_cast<unsigned>(PositionalVals.size());
for (size_t i = 0, e = PositionalOpts.size(); i != e; ++i) {
@@ -992,13 +1018,12 @@ void cl::ParseCommandLineOptions(int argc, const char * const *argv,
}
// Loop over args and make sure all required args are specified!
- for (StringMap<Option*>::iterator I = Opts.begin(),
- E = Opts.end(); I != E; ++I) {
- switch (I->second->getNumOccurrencesFlag()) {
+ for (const auto &Opt : Opts) {
+ switch (Opt.second->getNumOccurrencesFlag()) {
case Required:
case OneOrMore:
- if (I->second->getNumOccurrences() == 0) {
- I->second->error("must be specified at least once!");
+ if (Opt.second->getNumOccurrences() == 0) {
+ Opt.second->error("must be specified at least once!");
ErrorParsing = true;
}
// Fall through
@@ -1031,7 +1056,7 @@ void cl::ParseCommandLineOptions(int argc, const char * const *argv,
//
bool Option::error(const Twine &Message, StringRef ArgName) {
- if (ArgName.data() == 0) ArgName = ArgStr;
+ if (!ArgName.data()) ArgName = ArgStr;
if (ArgName.empty())
errs() << HelpStr; // Be nice for positional arguments
else
@@ -1442,12 +1467,12 @@ public:
outs() << "USAGE: " << ProgramName << " [options]";
// Print out the positional options.
- Option *CAOpt = 0; // The cl::ConsumeAfter option, if it exists...
+ Option *CAOpt = nullptr; // The cl::ConsumeAfter option, if it exists...
if (!PositionalOpts.empty() &&
PositionalOpts[0]->getNumOccurrencesFlag() == ConsumeAfter)
CAOpt = PositionalOpts[0];
- for (size_t i = CAOpt != 0, e = PositionalOpts.size(); i != e; ++i) {
+ for (size_t i = CAOpt != nullptr, e = PositionalOpts.size(); i != e; ++i) {
if (PositionalOpts[i]->ArgStr[0])
outs() << " --" << PositionalOpts[i]->ArgStr;
outs() << " " << PositionalOpts[i]->HelpStr;
@@ -1474,7 +1499,7 @@ public:
MoreHelp->clear();
// Halt the program since help information was printed
- exit(1);
+ exit(0);
}
};
@@ -1486,25 +1511,24 @@ public:
// It shall return true if A's name should be lexographically
// ordered before B's name. It returns false otherwise.
static bool OptionCategoryCompare(OptionCategory *A, OptionCategory *B) {
- int Length = strcmp(A->getName(), B->getName());
- assert(Length != 0 && "Duplicate option categories");
- return Length < 0;
+ return strcmp(A->getName(), B->getName()) < 0;
}
// Make sure we inherit our base class's operator=()
using HelpPrinter::operator= ;
protected:
- virtual void printOptions(StrOptionPairVector &Opts, size_t MaxArgLen) {
+ void printOptions(StrOptionPairVector &Opts, size_t MaxArgLen) override {
std::vector<OptionCategory *> SortedCategories;
std::map<OptionCategory *, std::vector<Option *> > CategorizedOptions;
- // Collect registered option categories into vector in preperation for
+ // Collect registered option categories into vector in preparation for
// sorting.
for (OptionCatSet::const_iterator I = RegisteredOptionCategories->begin(),
E = RegisteredOptionCategories->end();
- I != E; ++I)
+ I != E; ++I) {
SortedCategories.push_back(*I);
+ }
// Sort the different option categories alphabetically.
assert(SortedCategories.size() > 0 && "No option categories registered!");
@@ -1543,7 +1567,7 @@ protected:
outs() << (*Category)->getName() << ":\n";
// Check if description is set.
- if ((*Category)->getDescription() != 0)
+ if ((*Category)->getDescription() != nullptr)
outs() << (*Category)->getDescription() << "\n\n";
else
outs() << "\n";
@@ -1674,9 +1698,9 @@ void cl::PrintOptionValues() {
Opts[i].second->printOptionValue(MaxArgLen, PrintAllOptions);
}
-static void (*OverrideVersionPrinter)() = 0;
+static void (*OverrideVersionPrinter)() = nullptr;
-static std::vector<void (*)()>* ExtraVersionPrinters = 0;
+static std::vector<void (*)()>* ExtraVersionPrinters = nullptr;
namespace {
class VersionPrinter {
@@ -1686,7 +1710,7 @@ public:
OS << "LLVM (http://llvm.org/):\n"
<< " " << PACKAGE_NAME << " version " << PACKAGE_VERSION;
#ifdef LLVM_VERSION_INFO
- OS << LLVM_VERSION_INFO;
+ OS << " " << LLVM_VERSION_INFO;
#endif
OS << "\n ";
#ifndef __OPTIMIZE__
@@ -1709,15 +1733,15 @@ public:
void operator=(bool OptionWasSpecified) {
if (!OptionWasSpecified) return;
- if (OverrideVersionPrinter != 0) {
+ if (OverrideVersionPrinter != nullptr) {
(*OverrideVersionPrinter)();
- exit(1);
+ exit(0);
}
print();
// Iterate over any registered extra printers and call them to add further
// information.
- if (ExtraVersionPrinters != 0) {
+ if (ExtraVersionPrinters != nullptr) {
outs() << '\n';
for (std::vector<void (*)()>::iterator I = ExtraVersionPrinters->begin(),
E = ExtraVersionPrinters->end();
@@ -1725,7 +1749,7 @@ public:
(*I)();
}
- exit(1);
+ exit(0);
}
};
} // End anonymous namespace
@@ -1767,7 +1791,7 @@ void cl::SetVersionPrinter(void (*func)()) {
}
void cl::AddExtraVersionPrinter(void (*func)()) {
- if (ExtraVersionPrinters == 0)
+ if (!ExtraVersionPrinters)
ExtraVersionPrinters = new std::vector<void (*)()>;
ExtraVersionPrinters->push_back(func);
generated by cgit v1.2.3 (git 2.25.1) at 2025-11-04 07:49:44 +0000