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-rw-r--r--include/clang/Driver/Arg.h133
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diff --git a/include/clang/Driver/Arg.h b/include/clang/Driver/Arg.h
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-//===--- Arg.h - Parsed Argument Classes ------------------------*- C++ -*-===//
-//
-// The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-///
-/// \file
-/// \brief Defines the clang::driver::Arg class for parsed arguments.
-///
-//===----------------------------------------------------------------------===//
-
-#ifndef CLANG_DRIVER_ARG_H_
-#define CLANG_DRIVER_ARG_H_
-
-#include "Util.h"
-#include "clang/Driver/Option.h"
-#include "llvm/ADT/SmallVector.h"
-#include "llvm/ADT/StringRef.h"
-#include <string>
-
-namespace clang {
-namespace driver {
- class ArgList;
-
- /// \brief A concrete instance of a particular driver option.
- ///
- /// The Arg class encodes just enough information to be able to
- /// derive the argument values efficiently. In addition, Arg
- /// instances have an intrusive double linked list which is used by
- /// ArgList to provide efficient iteration over all instances of a
- /// particular option.
- class Arg {
- Arg(const Arg &) LLVM_DELETED_FUNCTION;
- void operator=(const Arg &) LLVM_DELETED_FUNCTION;
-
- private:
- /// \brief The option this argument is an instance of.
- const Option Opt;
-
- /// \brief The argument this argument was derived from (during tool chain
- /// argument translation), if any.
- const Arg *BaseArg;
-
- /// \brief How this instance of the option was spelled.
- StringRef Spelling;
-
- /// \brief The index at which this argument appears in the containing
- /// ArgList.
- unsigned Index;
-
- /// \brief Was this argument used to affect compilation?
- ///
- /// This is used for generating "argument unused" diagnostics.
- mutable unsigned Claimed : 1;
-
- /// \brief Does this argument own its values?
- mutable unsigned OwnsValues : 1;
-
- /// \brief The argument values, as C strings.
- SmallVector<const char *, 2> Values;
-
- public:
- Arg(const Option Opt, StringRef Spelling, unsigned Index,
- const Arg *BaseArg = 0);
- Arg(const Option Opt, StringRef Spelling, unsigned Index,
- const char *Value0, const Arg *BaseArg = 0);
- Arg(const Option Opt, StringRef Spelling, unsigned Index,
- const char *Value0, const char *Value1, const Arg *BaseArg = 0);
- ~Arg();
-
- Option getOption() const { return Opt; }
- StringRef getSpelling() const { return Spelling; }
- unsigned getIndex() const { return Index; }
-
- /// \brief Return the base argument which generated this arg.
- ///
- /// This is either the argument itself or the argument it was
- /// derived from during tool chain specific argument translation.
- const Arg &getBaseArg() const {
- return BaseArg ? *BaseArg : *this;
- }
- void setBaseArg(const Arg *_BaseArg) {
- BaseArg = _BaseArg;
- }
-
- bool getOwnsValues() const { return OwnsValues; }
- void setOwnsValues(bool Value) const { OwnsValues = Value; }
-
- bool isClaimed() const { return getBaseArg().Claimed; }
-
- /// \brief Set the Arg claimed bit.
- void claim() const { getBaseArg().Claimed = true; }
-
- unsigned getNumValues() const { return Values.size(); }
- const char *getValue(unsigned N = 0) const {
- return Values[N];
- }
-
- SmallVectorImpl<const char*> &getValues() {
- return Values;
- }
-
- bool containsValue(StringRef Value) const {
- for (unsigned i = 0, e = getNumValues(); i != e; ++i)
- if (Values[i] == Value)
- return true;
- return false;
- }
-
- /// \brief Append the argument onto the given array as strings.
- void render(const ArgList &Args, ArgStringList &Output) const;
-
- /// \brief Append the argument, render as an input, onto the given
- /// array as strings.
- ///
- /// The distinction is that some options only render their values
- /// when rendered as a input (e.g., Xlinker).
- void renderAsInput(const ArgList &Args, ArgStringList &Output) const;
-
- void dump() const;
-
- /// \brief Return a formatted version of the argument and
- /// its values, for debugging and diagnostics.
- std::string getAsString(const ArgList &Args) const;
- };
-
-} // end namespace driver
-} // end namespace clang
-
-#endif
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