Nick Lewycky | 3fdcc6f | 2010-12-31 17:31:54 +0000 | [diff] [blame] | 1 | //===--- Option.cpp - Abstract Driver Options -----------------------------===// |
Daniel Dunbar | 1eb4e64 | 2009-03-03 05:55:11 +0000 | [diff] [blame] | 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 "clang/Driver/Option.h" |
Daniel Dunbar | bbf842b | 2009-03-04 23:22:02 +0000 | [diff] [blame] | 11 | #include "clang/Driver/Arg.h" |
| 12 | #include "clang/Driver/ArgList.h" |
Argyrios Kyrtzidis | a049bbb | 2012-10-26 19:36:33 +0000 | [diff] [blame] | 13 | #include "llvm/ADT/Twine.h" |
Chandler Carruth | 55fc873 | 2012-12-04 09:13:33 +0000 | [diff] [blame] | 14 | #include "llvm/Support/ErrorHandling.h" |
| 15 | #include "llvm/Support/raw_ostream.h" |
Daniel Dunbar | bbf842b | 2009-03-04 23:22:02 +0000 | [diff] [blame] | 16 | #include <algorithm> |
Chandler Carruth | 55fc873 | 2012-12-04 09:13:33 +0000 | [diff] [blame] | 17 | #include <cassert> |
Daniel Dunbar | 1eb4e64 | 2009-03-03 05:55:11 +0000 | [diff] [blame] | 18 | using namespace clang::driver; |
| 19 | |
Michael J. Spencer | 9b7dcdb | 2012-10-03 19:58:10 +0000 | [diff] [blame] | 20 | Option::Option(const OptTable::Info *info, const OptTable *owner) |
| 21 | : Info(info), Owner(owner) { |
Daniel Dunbar | 1eb4e64 | 2009-03-03 05:55:11 +0000 | [diff] [blame] | 22 | |
| 23 | // Multi-level aliases are not supported, and alias options cannot |
| 24 | // have groups. This just simplifies option tracking, it is not an |
| 25 | // inherent limitation. |
Benjamin Kramer | 6592c77 | 2012-10-21 15:21:56 +0000 | [diff] [blame] | 26 | assert((!Info || !getAlias().isValid() || (!getAlias().getAlias().isValid() && |
Michael J. Spencer | e4151c5 | 2012-10-19 22:36:40 +0000 | [diff] [blame] | 27 | !getGroup().isValid())) && |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 28 | "Multi-level aliases and aliases with groups are unsupported."); |
Daniel Dunbar | 1eb4e64 | 2009-03-03 05:55:11 +0000 | [diff] [blame] | 29 | } |
| 30 | |
Daniel Dunbar | 2c6f6f3 | 2009-03-04 08:33:23 +0000 | [diff] [blame] | 31 | Option::~Option() { |
| 32 | } |
| 33 | |
| 34 | void Option::dump() const { |
| 35 | llvm::errs() << "<"; |
Michael J. Spencer | 04a4279 | 2012-08-21 18:51:17 +0000 | [diff] [blame] | 36 | switch (getKind()) { |
Daniel Dunbar | 2c6f6f3 | 2009-03-04 08:33:23 +0000 | [diff] [blame] | 37 | #define P(N) case N: llvm::errs() << #N; break |
| 38 | P(GroupClass); |
| 39 | P(InputClass); |
| 40 | P(UnknownClass); |
| 41 | P(FlagClass); |
| 42 | P(JoinedClass); |
| 43 | P(SeparateClass); |
| 44 | P(CommaJoinedClass); |
| 45 | P(MultiArgClass); |
| 46 | P(JoinedOrSeparateClass); |
| 47 | P(JoinedAndSeparateClass); |
| 48 | #undef P |
| 49 | } |
| 50 | |
Michael J. Spencer | c635710 | 2012-10-22 22:13:48 +0000 | [diff] [blame] | 51 | llvm::errs() << " Prefixes:["; |
| 52 | for (const char * const *Pre = Info->Prefixes; *Pre != 0; ++Pre) { |
| 53 | llvm::errs() << '"' << *Pre << (*(Pre + 1) == 0 ? "\"" : "\", "); |
| 54 | } |
| 55 | llvm::errs() << ']'; |
| 56 | |
Michael J. Spencer | 04a4279 | 2012-08-21 18:51:17 +0000 | [diff] [blame] | 57 | llvm::errs() << " Name:\"" << getName() << '"'; |
Daniel Dunbar | 2c6f6f3 | 2009-03-04 08:33:23 +0000 | [diff] [blame] | 58 | |
Michael J. Spencer | e4151c5 | 2012-10-19 22:36:40 +0000 | [diff] [blame] | 59 | const Option Group = getGroup(); |
| 60 | if (Group.isValid()) { |
Daniel Dunbar | 2c6f6f3 | 2009-03-04 08:33:23 +0000 | [diff] [blame] | 61 | llvm::errs() << " Group:"; |
Michael J. Spencer | e4151c5 | 2012-10-19 22:36:40 +0000 | [diff] [blame] | 62 | Group.dump(); |
Daniel Dunbar | 2c6f6f3 | 2009-03-04 08:33:23 +0000 | [diff] [blame] | 63 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 64 | |
Michael J. Spencer | e4151c5 | 2012-10-19 22:36:40 +0000 | [diff] [blame] | 65 | const Option Alias = getAlias(); |
| 66 | if (Alias.isValid()) { |
Daniel Dunbar | 2c6f6f3 | 2009-03-04 08:33:23 +0000 | [diff] [blame] | 67 | llvm::errs() << " Alias:"; |
Michael J. Spencer | e4151c5 | 2012-10-19 22:36:40 +0000 | [diff] [blame] | 68 | Alias.dump(); |
Daniel Dunbar | 2c6f6f3 | 2009-03-04 08:33:23 +0000 | [diff] [blame] | 69 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 70 | |
Michael J. Spencer | 04a4279 | 2012-08-21 18:51:17 +0000 | [diff] [blame] | 71 | if (getKind() == MultiArgClass) |
| 72 | llvm::errs() << " NumArgs:" << getNumArgs(); |
Daniel Dunbar | 2c6f6f3 | 2009-03-04 08:33:23 +0000 | [diff] [blame] | 73 | |
| 74 | llvm::errs() << ">\n"; |
| 75 | } |
| 76 | |
Daniel Dunbar | 9e1f982 | 2009-11-19 04:14:53 +0000 | [diff] [blame] | 77 | bool Option::matches(OptSpecifier Opt) const { |
Daniel Dunbar | b32aa51 | 2009-11-19 03:26:50 +0000 | [diff] [blame] | 78 | // Aliases are never considered in matching, look through them. |
Michael J. Spencer | e4151c5 | 2012-10-19 22:36:40 +0000 | [diff] [blame] | 79 | const Option Alias = getAlias(); |
| 80 | if (Alias.isValid()) |
| 81 | return Alias.matches(Opt); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 82 | |
Daniel Dunbar | 9e1f982 | 2009-11-19 04:14:53 +0000 | [diff] [blame] | 83 | // Check exact match. |
Michael J. Spencer | 663117a | 2012-09-25 23:12:48 +0000 | [diff] [blame] | 84 | if (getID() == Opt.getID()) |
Daniel Dunbar | 1eb4e64 | 2009-03-03 05:55:11 +0000 | [diff] [blame] | 85 | return true; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 86 | |
Michael J. Spencer | e4151c5 | 2012-10-19 22:36:40 +0000 | [diff] [blame] | 87 | const Option Group = getGroup(); |
| 88 | if (Group.isValid()) |
| 89 | return Group.matches(Opt); |
Daniel Dunbar | 1eb4e64 | 2009-03-03 05:55:11 +0000 | [diff] [blame] | 90 | return false; |
| 91 | } |
| 92 | |
Michael J. Spencer | c635710 | 2012-10-22 22:13:48 +0000 | [diff] [blame] | 93 | Arg *Option::accept(const ArgList &Args, |
| 94 | unsigned &Index, |
| 95 | unsigned ArgSize) const { |
Argyrios Kyrtzidis | a049bbb | 2012-10-26 19:36:33 +0000 | [diff] [blame] | 96 | const Option &UnaliasedOption = getUnaliasedOption(); |
| 97 | StringRef Spelling; |
| 98 | // If the option was an alias, get the spelling from the unaliased one. |
| 99 | if (getID() == UnaliasedOption.getID()) { |
| 100 | Spelling = StringRef(Args.getArgString(Index), ArgSize); |
| 101 | } else { |
| 102 | Spelling = Args.MakeArgString(Twine(UnaliasedOption.getPrefix()) + |
| 103 | Twine(UnaliasedOption.getName())); |
| 104 | } |
| 105 | |
Michael J. Spencer | 04a4279 | 2012-08-21 18:51:17 +0000 | [diff] [blame] | 106 | switch (getKind()) { |
Michael J. Spencer | 4327557 | 2012-08-20 21:41:17 +0000 | [diff] [blame] | 107 | case FlagClass: |
Michael J. Spencer | c635710 | 2012-10-22 22:13:48 +0000 | [diff] [blame] | 108 | if (ArgSize != strlen(Args.getArgString(Index))) |
Michael J. Spencer | 4327557 | 2012-08-20 21:41:17 +0000 | [diff] [blame] | 109 | return 0; |
Daniel Dunbar | 2c6f6f3 | 2009-03-04 08:33:23 +0000 | [diff] [blame] | 110 | |
Argyrios Kyrtzidis | a049bbb | 2012-10-26 19:36:33 +0000 | [diff] [blame] | 111 | return new Arg(UnaliasedOption, Spelling, Index++); |
Michael J. Spencer | 4327557 | 2012-08-20 21:41:17 +0000 | [diff] [blame] | 112 | case JoinedClass: { |
Michael J. Spencer | c635710 | 2012-10-22 22:13:48 +0000 | [diff] [blame] | 113 | const char *Value = Args.getArgString(Index) + ArgSize; |
Argyrios Kyrtzidis | a049bbb | 2012-10-26 19:36:33 +0000 | [diff] [blame] | 114 | return new Arg(UnaliasedOption, Spelling, Index++, Value); |
Daniel Dunbar | 4465a77 | 2010-06-09 22:31:00 +0000 | [diff] [blame] | 115 | } |
Michael J. Spencer | 4327557 | 2012-08-20 21:41:17 +0000 | [diff] [blame] | 116 | case CommaJoinedClass: { |
| 117 | // Always matches. |
Michael J. Spencer | c635710 | 2012-10-22 22:13:48 +0000 | [diff] [blame] | 118 | const char *Str = Args.getArgString(Index) + ArgSize; |
Argyrios Kyrtzidis | a049bbb | 2012-10-26 19:36:33 +0000 | [diff] [blame] | 119 | Arg *A = new Arg(UnaliasedOption, Spelling, Index++); |
Daniel Dunbar | bbf842b | 2009-03-04 23:22:02 +0000 | [diff] [blame] | 120 | |
Michael J. Spencer | 4327557 | 2012-08-20 21:41:17 +0000 | [diff] [blame] | 121 | // Parse out the comma separated values. |
| 122 | const char *Prev = Str; |
| 123 | for (;; ++Str) { |
| 124 | char c = *Str; |
Daniel Dunbar | b0c4df5 | 2009-03-22 23:26:43 +0000 | [diff] [blame] | 125 | |
Michael J. Spencer | 4327557 | 2012-08-20 21:41:17 +0000 | [diff] [blame] | 126 | if (!c || c == ',') { |
| 127 | if (Prev != Str) { |
| 128 | char *Value = new char[Str - Prev + 1]; |
| 129 | memcpy(Value, Prev, Str - Prev); |
| 130 | Value[Str - Prev] = '\0'; |
| 131 | A->getValues().push_back(Value); |
| 132 | } |
Daniel Dunbar | 1eb4e64 | 2009-03-03 05:55:11 +0000 | [diff] [blame] | 133 | |
Michael J. Spencer | 4327557 | 2012-08-20 21:41:17 +0000 | [diff] [blame] | 134 | if (!c) |
| 135 | break; |
Daniel Dunbar | 1eb4e64 | 2009-03-03 05:55:11 +0000 | [diff] [blame] | 136 | |
Michael J. Spencer | 4327557 | 2012-08-20 21:41:17 +0000 | [diff] [blame] | 137 | Prev = Str + 1; |
| 138 | } |
| 139 | } |
| 140 | A->setOwnsValues(true); |
Daniel Dunbar | bbf842b | 2009-03-04 23:22:02 +0000 | [diff] [blame] | 141 | |
Michael J. Spencer | 4327557 | 2012-08-20 21:41:17 +0000 | [diff] [blame] | 142 | return A; |
| 143 | } |
| 144 | case SeparateClass: |
Sylvestre Ledru | f3477c1 | 2012-09-27 10:16:10 +0000 | [diff] [blame] | 145 | // Matches iff this is an exact match. |
Michael J. Spencer | 4327557 | 2012-08-20 21:41:17 +0000 | [diff] [blame] | 146 | // FIXME: Avoid strlen. |
Michael J. Spencer | c635710 | 2012-10-22 22:13:48 +0000 | [diff] [blame] | 147 | if (ArgSize != strlen(Args.getArgString(Index))) |
Michael J. Spencer | 4327557 | 2012-08-20 21:41:17 +0000 | [diff] [blame] | 148 | return 0; |
Daniel Dunbar | b0c4df5 | 2009-03-22 23:26:43 +0000 | [diff] [blame] | 149 | |
Michael J. Spencer | 4327557 | 2012-08-20 21:41:17 +0000 | [diff] [blame] | 150 | Index += 2; |
| 151 | if (Index > Args.getNumInputArgStrings()) |
| 152 | return 0; |
| 153 | |
Argyrios Kyrtzidis | a049bbb | 2012-10-26 19:36:33 +0000 | [diff] [blame] | 154 | return new Arg(UnaliasedOption, Spelling, |
Michael J. Spencer | 4327557 | 2012-08-20 21:41:17 +0000 | [diff] [blame] | 155 | Index - 2, Args.getArgString(Index - 1)); |
| 156 | case MultiArgClass: { |
Sylvestre Ledru | f3477c1 | 2012-09-27 10:16:10 +0000 | [diff] [blame] | 157 | // Matches iff this is an exact match. |
Michael J. Spencer | 4327557 | 2012-08-20 21:41:17 +0000 | [diff] [blame] | 158 | // FIXME: Avoid strlen. |
Michael J. Spencer | c635710 | 2012-10-22 22:13:48 +0000 | [diff] [blame] | 159 | if (ArgSize != strlen(Args.getArgString(Index))) |
Michael J. Spencer | 4327557 | 2012-08-20 21:41:17 +0000 | [diff] [blame] | 160 | return 0; |
| 161 | |
Michael J. Spencer | 04a4279 | 2012-08-21 18:51:17 +0000 | [diff] [blame] | 162 | Index += 1 + getNumArgs(); |
Michael J. Spencer | 4327557 | 2012-08-20 21:41:17 +0000 | [diff] [blame] | 163 | if (Index > Args.getNumInputArgStrings()) |
| 164 | return 0; |
| 165 | |
Argyrios Kyrtzidis | a049bbb | 2012-10-26 19:36:33 +0000 | [diff] [blame] | 166 | Arg *A = new Arg(UnaliasedOption, Spelling, Index - 1 - getNumArgs(), |
Michael J. Spencer | 04a4279 | 2012-08-21 18:51:17 +0000 | [diff] [blame] | 167 | Args.getArgString(Index - getNumArgs())); |
| 168 | for (unsigned i = 1; i != getNumArgs(); ++i) |
| 169 | A->getValues().push_back(Args.getArgString(Index - getNumArgs() + i)); |
Michael J. Spencer | 4327557 | 2012-08-20 21:41:17 +0000 | [diff] [blame] | 170 | return A; |
| 171 | } |
| 172 | case JoinedOrSeparateClass: { |
| 173 | // If this is not an exact match, it is a joined arg. |
| 174 | // FIXME: Avoid strlen. |
Michael J. Spencer | c635710 | 2012-10-22 22:13:48 +0000 | [diff] [blame] | 175 | if (ArgSize != strlen(Args.getArgString(Index))) { |
| 176 | const char *Value = Args.getArgString(Index) + ArgSize; |
| 177 | return new Arg(*this, Spelling, Index++, Value); |
Michael J. Spencer | 4327557 | 2012-08-20 21:41:17 +0000 | [diff] [blame] | 178 | } |
| 179 | |
| 180 | // Otherwise it must be separate. |
| 181 | Index += 2; |
| 182 | if (Index > Args.getNumInputArgStrings()) |
| 183 | return 0; |
| 184 | |
Argyrios Kyrtzidis | a049bbb | 2012-10-26 19:36:33 +0000 | [diff] [blame] | 185 | return new Arg(UnaliasedOption, Spelling, |
Michael J. Spencer | 4327557 | 2012-08-20 21:41:17 +0000 | [diff] [blame] | 186 | Index - 2, Args.getArgString(Index - 1)); |
| 187 | } |
| 188 | case JoinedAndSeparateClass: |
| 189 | // Always matches. |
| 190 | Index += 2; |
| 191 | if (Index > Args.getNumInputArgStrings()) |
| 192 | return 0; |
| 193 | |
Argyrios Kyrtzidis | a049bbb | 2012-10-26 19:36:33 +0000 | [diff] [blame] | 194 | return new Arg(UnaliasedOption, Spelling, Index - 2, |
Michael J. Spencer | c635710 | 2012-10-22 22:13:48 +0000 | [diff] [blame] | 195 | Args.getArgString(Index - 2) + ArgSize, |
| 196 | Args.getArgString(Index - 1)); |
David Blaikie | 279e0be | 2012-08-20 22:22:51 +0000 | [diff] [blame] | 197 | default: |
| 198 | llvm_unreachable("Invalid option kind!"); |
Michael J. Spencer | 4327557 | 2012-08-20 21:41:17 +0000 | [diff] [blame] | 199 | } |
Daniel Dunbar | 2c6f6f3 | 2009-03-04 08:33:23 +0000 | [diff] [blame] | 200 | } |