Copy clang/Driver/<Option parsing stuff> to llvm.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169344 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Option/Arg.cpp b/lib/Option/Arg.cpp
new file mode 100644
index 0000000..9f547bd
--- /dev/null
+++ b/lib/Option/Arg.cpp
@@ -0,0 +1,123 @@
+//===--- Arg.cpp - Argument Implementations -------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/Option/Arg.h"
+
+#include "llvm/ADT/SmallString.h"
+#include "llvm/ADT/Twine.h"
+#include "llvm/Option/ArgList.h"
+#include "llvm/Option/Option.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::dump() const {
+ llvm::errs() << "<";
+
+ llvm::errs() << " Opt:";
+ Opt.dump();
+
+ llvm::errs() << " Index:" << Index;
+
+ llvm::errs() << " Values: [";
+ for (unsigned i = 0, e = Values.size(); i != e; ++i) {
+ if (i) llvm::errs() << ", ";
+ llvm::errs() << "'" << Values[i] << "'";
+ }
+
+ llvm::errs() << "]>\n";
+}
+
+std::string Arg::getAsString(const ArgList &Args) const {
+ SmallString<256> Res;
+ llvm::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;
+ }
+
+ for (unsigned i = 0, e = getNumValues(); i != e; ++i)
+ Output.push_back(getValue(i));
+}
+
+void Arg::render(const ArgList &Args, ArgStringList &Output) const {
+ switch (getOption().getRenderStyle()) {
+ case Option::RenderValuesStyle:
+ for (unsigned i = 0, e = getNumValues(); i != e; ++i)
+ Output.push_back(getValue(i));
+ break;
+
+ case Option::RenderCommaJoinedStyle: {
+ SmallString<256> Res;
+ llvm::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)));
+ for (unsigned i = 1, e = getNumValues(); i != e; ++i)
+ Output.push_back(getValue(i));
+ break;
+
+ case Option::RenderSeparateStyle:
+ Output.push_back(Args.MakeArgString(getSpelling()));
+ for (unsigned i = 0, e = getNumValues(); i != e; ++i)
+ Output.push_back(getValue(i));
+ break;
+ }
+}