1//===--- Arg.cpp - Argument Implementations -------------------------------===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10#include "llvm/Option/Arg.h"
11#include "llvm/ADT/SmallString.h"
12#include "llvm/ADT/Twine.h"
13#include "llvm/Option/ArgList.h"
14#include "llvm/Option/Option.h"
15#include "llvm/Support/raw_ostream.h"
16#include "llvm/Support/Debug.h"
17
18using namespace llvm;
19using namespace llvm::opt;
20
21Arg::Arg(const Option Opt, StringRef S, unsigned Index, const Arg *BaseArg)
22    : Opt(Opt), BaseArg(BaseArg), Spelling(S), Index(Index), Claimed(false),
23      OwnsValues(false) {}
24
25Arg::Arg(const Option Opt, StringRef S, unsigned Index, const char *Value0,
26         const Arg *BaseArg)
27    : Opt(Opt), BaseArg(BaseArg), Spelling(S), Index(Index), Claimed(false),
28      OwnsValues(false) {
29  Values.push_back(Value0);
30}
31
32Arg::Arg(const Option Opt, StringRef S, unsigned Index, const char *Value0,
33         const char *Value1, const Arg *BaseArg)
34    : Opt(Opt), BaseArg(BaseArg), Spelling(S), Index(Index), Claimed(false),
35      OwnsValues(false) {
36  Values.push_back(Value0);
37  Values.push_back(Value1);
38}
39
40Arg::~Arg() {
41  if (OwnsValues) {
42    for (unsigned i = 0, e = Values.size(); i != e; ++i)
43      delete[] Values[i];
44  }
45}
46
47void Arg::print(raw_ostream& O) const {
48  O << "<";
49
50  O << " Opt:";
51  Opt.print(O);
52
53  O << " Index:" << Index;
54
55  O << " Values: [";
56  for (unsigned i = 0, e = Values.size(); i != e; ++i) {
57    if (i) O << ", ";
58    O << "'" << Values[i] << "'";
59  }
60
61  O << "]>\n";
62}
63
64LLVM_DUMP_METHOD void Arg::dump() const { print(dbgs()); }
65
66std::string Arg::getAsString(const ArgList &Args) const {
67  SmallString<256> Res;
68  llvm::raw_svector_ostream OS(Res);
69
70  ArgStringList ASL;
71  render(Args, ASL);
72  for (ArgStringList::iterator
73         it = ASL.begin(), ie = ASL.end(); it != ie; ++it) {
74    if (it != ASL.begin())
75      OS << ' ';
76    OS << *it;
77  }
78
79  return OS.str();
80}
81
82void Arg::renderAsInput(const ArgList &Args, ArgStringList &Output) const {
83  if (!getOption().hasNoOptAsInput()) {
84    render(Args, Output);
85    return;
86  }
87
88  Output.append(Values.begin(), Values.end());
89}
90
91void Arg::render(const ArgList &Args, ArgStringList &Output) const {
92  switch (getOption().getRenderStyle()) {
93  case Option::RenderValuesStyle:
94    Output.append(Values.begin(), Values.end());
95    break;
96
97  case Option::RenderCommaJoinedStyle: {
98    SmallString<256> Res;
99    llvm::raw_svector_ostream OS(Res);
100    OS << getSpelling();
101    for (unsigned i = 0, e = getNumValues(); i != e; ++i) {
102      if (i) OS << ',';
103      OS << getValue(i);
104    }
105    Output.push_back(Args.MakeArgString(OS.str()));
106    break;
107  }
108
109 case Option::RenderJoinedStyle:
110    Output.push_back(Args.GetOrMakeJoinedArgString(
111                       getIndex(), getSpelling(), getValue(0)));
112    Output.append(Values.begin() + 1, Values.end());
113    break;
114
115  case Option::RenderSeparateStyle:
116    Output.push_back(Args.MakeArgString(getSpelling()));
117    Output.append(Values.begin(), Values.end());
118    break;
119  }
120}
121