1 files changed, 125 insertions, 0 deletions
diff --git a/llvm/lib/Option/Arg.cpp b/llvm/lib/Option/Arg.cpp
new file mode 100644
index 0000000000000..ea382b347345b
--- /dev/null
+++ b/llvm/lib/Option/Arg.cpp
@@ -0,0 +1,125 @@
+//===- Arg.cpp - Argument Implementations ---------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/ADT/SmallString.h"
+#include "llvm/Config/llvm-config.h"
+#include "llvm/Option/Arg.h"
+#include "llvm/Option/ArgList.h"
+#include "llvm/Option/Option.h"
+#include "llvm/Support/Compiler.h"
+#include "llvm/Support/Debug.h"
+#include "llvm/Support/raw_ostream.h"
+
+using namespace llvm;
+using namespace llvm::opt;
+
+Arg::Arg(const Option Opt, StringRef S, unsigned Index, const Arg *BaseArg)
+    : Opt(Opt), BaseArg(BaseArg), Spelling(S), Index(Index), Claimed(false),
+      OwnsValues(false) {}
+
+Arg::Arg(const Option Opt, StringRef S, unsigned Index, const char *Value0,
+         const Arg *BaseArg)
+    : Opt(Opt), BaseArg(BaseArg), Spelling(S), Index(Index), Claimed(false),
+      OwnsValues(false) {
+  Values.push_back(Value0);
+}
+
+Arg::Arg(const Option Opt, StringRef S, unsigned Index, const char *Value0,
+         const char *Value1, const Arg *BaseArg)
+    : Opt(Opt), BaseArg(BaseArg), Spelling(S), Index(Index), Claimed(false),
+      OwnsValues(false) {
+  Values.push_back(Value0);
+  Values.push_back(Value1);
+}
+
+Arg::~Arg() {
+  if (OwnsValues) {
+    for (unsigned i = 0, e = Values.size(); i != e; ++i)
+      delete[] Values[i];
+  }
+}
+
+void Arg::print(raw_ostream& O) const {
+  O << "<";
+
+  O << " Opt:";
+  Opt.print(O);
+
+  O << " Index:" << Index;
+
+  O << " Values: [";
+  for (unsigned i = 0, e = Values.size(); i != e; ++i) {
+    if (i) O << ", ";
+    O << "'" << Values[i] << "'";
+  }
+
+  O << "]>\n";
+}
+
+#if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
+LLVM_DUMP_METHOD void Arg::dump() const { print(dbgs()); }
+#endif
+
+std::string Arg::getAsString(const ArgList &Args) const {
+  if (Alias)
+    return Alias->getAsString(Args);
+
+  SmallString<256> Res;
+  raw_svector_ostream OS(Res);
+
+  ArgStringList ASL;
+  render(Args, ASL);
+  for (ArgStringList::iterator
+         it = ASL.begin(), ie = ASL.end(); it != ie; ++it) {
+    if (it != ASL.begin())
+      OS << ' ';
+    OS << *it;
+  }
+
+  return OS.str();
+}
+
+void Arg::renderAsInput(const ArgList &Args, ArgStringList &Output) const {
+  if (!getOption().hasNoOptAsInput()) {
+    render(Args, Output);
+    return;
+  }
+
+  Output.append(Values.begin(), Values.end());
+}
+
+void Arg::render(const ArgList &Args, ArgStringList &Output) const {
+  switch (getOption().getRenderStyle()) {
+  case Option::RenderValuesStyle:
+    Output.append(Values.begin(), Values.end());
+    break;
+
+  case Option::RenderCommaJoinedStyle: {
+    SmallString<256> Res;
+    raw_svector_ostream OS(Res);
+    OS << getSpelling();
+    for (unsigned i = 0, e = getNumValues(); i != e; ++i) {
+      if (i) OS << ',';
+      OS << getValue(i);
+    }
+    Output.push_back(Args.MakeArgString(OS.str()));
+    break;
+  }
+
+ case Option::RenderJoinedStyle:
+    Output.push_back(Args.GetOrMakeJoinedArgString(
+                       getIndex(), getSpelling(), getValue(0)));
+    Output.append(Values.begin() + 1, Values.end());
+    break;
+
+  case Option::RenderSeparateStyle:
+    Output.push_back(Args.MakeArgString(getSpelling()));
+    Output.append(Values.begin(), Values.end());
+    break;
+  }
+}