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87d13166c7
This is how it should've been and brings it more in line with std::string_view. There should be no functional change here. This is mostly mechanical from a custom clang-tidy check, with a lot of manual fixups. It uncovers a lot of minor inefficiencies. This doesn't actually modify StringRef yet, I'll do that in a follow-up.
126 lines
3.3 KiB
C++
126 lines
3.3 KiB
C++
//===- Arg.cpp - Argument Implementations ---------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/ADT/SmallString.h"
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#include "llvm/Config/llvm-config.h"
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#include "llvm/Option/Arg.h"
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#include "llvm/Option/ArgList.h"
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#include "llvm/Option/Option.h"
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#include "llvm/Support/Compiler.h"
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#include "llvm/Support/Debug.h"
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#include "llvm/Support/raw_ostream.h"
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using namespace llvm;
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using namespace llvm::opt;
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Arg::Arg(const Option Opt, StringRef S, unsigned Index, const Arg *BaseArg)
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: Opt(Opt), BaseArg(BaseArg), Spelling(S), Index(Index), Claimed(false),
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OwnsValues(false) {}
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Arg::Arg(const Option Opt, StringRef S, unsigned Index, const char *Value0,
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const Arg *BaseArg)
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: Opt(Opt), BaseArg(BaseArg), Spelling(S), Index(Index), Claimed(false),
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OwnsValues(false) {
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Values.push_back(Value0);
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}
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Arg::Arg(const Option Opt, StringRef S, unsigned Index, const char *Value0,
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const char *Value1, const Arg *BaseArg)
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: Opt(Opt), BaseArg(BaseArg), Spelling(S), Index(Index), Claimed(false),
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OwnsValues(false) {
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Values.push_back(Value0);
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Values.push_back(Value1);
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}
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Arg::~Arg() {
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if (OwnsValues) {
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for (unsigned i = 0, e = Values.size(); i != e; ++i)
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delete[] Values[i];
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}
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}
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void Arg::print(raw_ostream& O) const {
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O << "<";
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O << " Opt:";
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Opt.print(O);
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O << " Index:" << Index;
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O << " Values: [";
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for (unsigned i = 0, e = Values.size(); i != e; ++i) {
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if (i) O << ", ";
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O << "'" << Values[i] << "'";
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}
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O << "]>\n";
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}
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#if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
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LLVM_DUMP_METHOD void Arg::dump() const { print(dbgs()); }
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#endif
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std::string Arg::getAsString(const ArgList &Args) const {
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if (Alias)
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return Alias->getAsString(Args);
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SmallString<256> Res;
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raw_svector_ostream OS(Res);
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ArgStringList ASL;
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render(Args, ASL);
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for (ArgStringList::iterator
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it = ASL.begin(), ie = ASL.end(); it != ie; ++it) {
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if (it != ASL.begin())
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OS << ' ';
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OS << *it;
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}
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return std::string(OS.str());
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}
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void Arg::renderAsInput(const ArgList &Args, ArgStringList &Output) const {
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if (!getOption().hasNoOptAsInput()) {
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render(Args, Output);
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return;
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}
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Output.append(Values.begin(), Values.end());
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}
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void Arg::render(const ArgList &Args, ArgStringList &Output) const {
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switch (getOption().getRenderStyle()) {
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case Option::RenderValuesStyle:
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Output.append(Values.begin(), Values.end());
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break;
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case Option::RenderCommaJoinedStyle: {
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SmallString<256> Res;
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raw_svector_ostream OS(Res);
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OS << getSpelling();
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for (unsigned i = 0, e = getNumValues(); i != e; ++i) {
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if (i) OS << ',';
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OS << getValue(i);
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}
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Output.push_back(Args.MakeArgString(OS.str()));
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break;
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}
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case Option::RenderJoinedStyle:
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Output.push_back(Args.GetOrMakeJoinedArgString(
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getIndex(), getSpelling(), getValue(0)));
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Output.append(Values.begin() + 1, Values.end());
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break;
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case Option::RenderSeparateStyle:
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Output.push_back(Args.MakeArgString(getSpelling()));
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Output.append(Values.begin(), Values.end());
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break;
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}
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}
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