/usr/include/llvm-3.5/llvm/Option/Arg.h is in llvm-3.5-dev 1:3.5-4ubuntu2~trusty2.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 | //===--- 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 llvm::Arg class for parsed arguments.
///
//===----------------------------------------------------------------------===//
#ifndef LLVM_OPTION_ARG_H
#define LLVM_OPTION_ARG_H
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/Option/Option.h"
#include <string>
namespace llvm {
namespace opt {
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.
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 effect 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 = nullptr);
Arg(const Option Opt, StringRef Spelling, unsigned Index,
const char *Value0, const Arg *BaseArg = nullptr);
Arg(const Option Opt, StringRef Spelling, unsigned Index,
const char *Value0, const char *Value1, const Arg *BaseArg = nullptr);
~Arg();
const 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 opt
} // end namespace llvm
#endif
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