blob: 39dbce87f9ae0e942569ead4c246eb7b22a115e2 [file] [log] [blame]
//===--- ArgList.cpp - Argument List Management ---------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "llvm/Option/ArgList.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/ADT/Twine.h"
#include "llvm/Option/Arg.h"
#include "llvm/Option/Option.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/raw_ostream.h"
using namespace llvm;
using namespace llvm::opt;
void ArgList::append(Arg *A) {
Args.push_back(A);
// Update ranges for the option and all of its groups.
for (Option O = A->getOption().getUnaliasedOption(); O.isValid();
O = O.getGroup()) {
auto &R =
OptRanges.insert(std::make_pair(O.getID(), emptyRange())).first->second;
R.first = std::min<unsigned>(R.first, Args.size() - 1);
R.second = Args.size();
}
}
void ArgList::eraseArg(OptSpecifier Id) {
// Zero out the removed entries but keep them around so that we don't
// need to invalidate OptRanges.
for (Arg *const &A : filtered(Id)) {
// Avoid the need for a non-const filtered iterator variant.
Arg **ArgsBegin = Args.data();
ArgsBegin[&A - ArgsBegin] = nullptr;
}
OptRanges.erase(Id.getID());
}
ArgList::OptRange
ArgList::getRange(std::initializer_list<OptSpecifier> Ids) const {
OptRange R = emptyRange();
for (auto Id : Ids) {
auto I = OptRanges.find(Id.getID());
if (I != OptRanges.end()) {
R.first = std::min(R.first, I->second.first);
R.second = std::max(R.second, I->second.second);
}
}
// Map an empty {-1, 0} range to {0, 0} so it can be used to form iterators.
if (R.first == -1u)
R.first = 0;
return R;
}
bool ArgList::hasFlag(OptSpecifier Pos, OptSpecifier Neg, bool Default) const {
if (Arg *A = getLastArg(Pos, Neg))
return A->getOption().matches(Pos);
return Default;
}
bool ArgList::hasFlag(OptSpecifier Pos, OptSpecifier PosAlias, OptSpecifier Neg,
bool Default) const {
if (Arg *A = getLastArg(Pos, PosAlias, Neg))
return A->getOption().matches(Pos) || A->getOption().matches(PosAlias);
return Default;
}
StringRef ArgList::getLastArgValue(OptSpecifier Id, StringRef Default) const {
if (Arg *A = getLastArg(Id))
return A->getValue();
return Default;
}
std::vector<std::string> ArgList::getAllArgValues(OptSpecifier Id) const {
SmallVector<const char *, 16> Values;
AddAllArgValues(Values, Id);
return std::vector<std::string>(Values.begin(), Values.end());
}
void ArgList::AddLastArg(ArgStringList &Output, OptSpecifier Id) const {
if (Arg *A = getLastArg(Id)) {
A->claim();
A->render(*this, Output);
}
}
void ArgList::AddLastArg(ArgStringList &Output, OptSpecifier Id0,
OptSpecifier Id1) const {
if (Arg *A = getLastArg(Id0, Id1)) {
A->claim();
A->render(*this, Output);
}
}
void ArgList::AddAllArgsExcept(ArgStringList &Output,
ArrayRef<OptSpecifier> Ids,
ArrayRef<OptSpecifier> ExcludeIds) const {
for (const Arg *Arg : *this) {
bool Excluded = false;
for (OptSpecifier Id : ExcludeIds) {
if (Arg->getOption().matches(Id)) {
Excluded = true;
break;
}
}
if (!Excluded) {
for (OptSpecifier Id : Ids) {
if (Arg->getOption().matches(Id)) {
Arg->claim();
Arg->render(*this, Output);
break;
}
}
}
}
}
/// This is a nicer interface when you don't have a list of Ids to exclude.
void ArgList::AddAllArgs(ArgStringList &Output,
ArrayRef<OptSpecifier> Ids) const {
ArrayRef<OptSpecifier> Exclude = None;
AddAllArgsExcept(Output, Ids, Exclude);
}
/// This 3-opt variant of AddAllArgs could be eliminated in favor of one
/// that accepts a single specifier, given the above which accepts any number.
void ArgList::AddAllArgs(ArgStringList &Output, OptSpecifier Id0,
OptSpecifier Id1, OptSpecifier Id2) const {
for (auto Arg: filtered(Id0, Id1, Id2)) {
Arg->claim();
Arg->render(*this, Output);
}
}
void ArgList::AddAllArgValues(ArgStringList &Output, OptSpecifier Id0,
OptSpecifier Id1, OptSpecifier Id2) const {
for (auto Arg : filtered(Id0, Id1, Id2)) {
Arg->claim();
const auto &Values = Arg->getValues();
Output.append(Values.begin(), Values.end());
}
}
void ArgList::AddAllArgsTranslated(ArgStringList &Output, OptSpecifier Id0,
const char *Translation,
bool Joined) const {
for (auto Arg: filtered(Id0)) {
Arg->claim();
if (Joined) {
Output.push_back(MakeArgString(StringRef(Translation) +
Arg->getValue(0)));
} else {
Output.push_back(Translation);
Output.push_back(Arg->getValue(0));
}
}
}
void ArgList::ClaimAllArgs(OptSpecifier Id0) const {
for (auto *Arg : filtered(Id0))
Arg->claim();
}
void ArgList::ClaimAllArgs() const {
for (auto *Arg : *this)
if (!Arg->isClaimed())
Arg->claim();
}
const char *ArgList::GetOrMakeJoinedArgString(unsigned Index,
StringRef LHS,
StringRef RHS) const {
StringRef Cur = getArgString(Index);
if (Cur.size() == LHS.size() + RHS.size() &&
Cur.startswith(LHS) && Cur.endswith(RHS))
return Cur.data();
return MakeArgString(LHS + RHS);
}
void ArgList::print(raw_ostream &O) const {
for (Arg *A : *this) {
O << "* ";
A->print(O);
}
}
#if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
LLVM_DUMP_METHOD void ArgList::dump() const { print(dbgs()); }
#endif
//
void InputArgList::releaseMemory() {
// An InputArgList always owns its arguments.
for (Arg *A : *this)
delete A;
}
InputArgList::InputArgList(const char* const *ArgBegin,
const char* const *ArgEnd)
: NumInputArgStrings(ArgEnd - ArgBegin) {
ArgStrings.append(ArgBegin, ArgEnd);
}
unsigned InputArgList::MakeIndex(StringRef String0) const {
unsigned Index = ArgStrings.size();
// Tuck away so we have a reliable const char *.
SynthesizedStrings.push_back(String0);
ArgStrings.push_back(SynthesizedStrings.back().c_str());
return Index;
}
unsigned InputArgList::MakeIndex(StringRef String0,
StringRef String1) const {
unsigned Index0 = MakeIndex(String0);
unsigned Index1 = MakeIndex(String1);
assert(Index0 + 1 == Index1 && "Unexpected non-consecutive indices!");
(void) Index1;
return Index0;
}
const char *InputArgList::MakeArgStringRef(StringRef Str) const {
return getArgString(MakeIndex(Str));
}
//
DerivedArgList::DerivedArgList(const InputArgList &BaseArgs)
: BaseArgs(BaseArgs) {}
const char *DerivedArgList::MakeArgStringRef(StringRef Str) const {
return BaseArgs.MakeArgString(Str);
}
void DerivedArgList::AddSynthesizedArg(Arg *A) {
SynthesizedArgs.push_back(std::unique_ptr<Arg>(A));
}
Arg *DerivedArgList::MakeFlagArg(const Arg *BaseArg, const Option Opt) const {
SynthesizedArgs.push_back(
make_unique<Arg>(Opt, MakeArgString(Opt.getPrefix() + Opt.getName()),
BaseArgs.MakeIndex(Opt.getName()), BaseArg));
return SynthesizedArgs.back().get();
}
Arg *DerivedArgList::MakePositionalArg(const Arg *BaseArg, const Option Opt,
StringRef Value) const {
unsigned Index = BaseArgs.MakeIndex(Value);
SynthesizedArgs.push_back(
make_unique<Arg>(Opt, MakeArgString(Opt.getPrefix() + Opt.getName()),
Index, BaseArgs.getArgString(Index), BaseArg));
return SynthesizedArgs.back().get();
}
Arg *DerivedArgList::MakeSeparateArg(const Arg *BaseArg, const Option Opt,
StringRef Value) const {
unsigned Index = BaseArgs.MakeIndex(Opt.getName(), Value);
SynthesizedArgs.push_back(
make_unique<Arg>(Opt, MakeArgString(Opt.getPrefix() + Opt.getName()),
Index, BaseArgs.getArgString(Index + 1), BaseArg));
return SynthesizedArgs.back().get();
}
Arg *DerivedArgList::MakeJoinedArg(const Arg *BaseArg, const Option Opt,
StringRef Value) const {
unsigned Index = BaseArgs.MakeIndex((Opt.getName() + Value).str());
SynthesizedArgs.push_back(make_unique<Arg>(
Opt, MakeArgString(Opt.getPrefix() + Opt.getName()), Index,
BaseArgs.getArgString(Index) + Opt.getName().size(), BaseArg));
return SynthesizedArgs.back().get();
}