Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1 | //===--- TokenAnnotator.cpp - Format C++ code -----------------------------===// |
| 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 | /// \file |
| 11 | /// \brief This file implements a token annotator, i.e. creates |
| 12 | /// \c AnnotatedTokens out of \c FormatTokens with required extra information. |
| 13 | /// |
| 14 | //===----------------------------------------------------------------------===// |
| 15 | |
| 16 | #include "TokenAnnotator.h" |
| 17 | #include "clang/Basic/SourceManager.h" |
Daniel Jasper | bf71ba2 | 2013-04-08 20:33:42 +0000 | [diff] [blame] | 18 | #include "llvm/Support/Debug.h" |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 19 | |
| 20 | namespace clang { |
| 21 | namespace format { |
| 22 | |
Craig Topper | 14e6649 | 2013-07-01 04:03:19 +0000 | [diff] [blame] | 23 | namespace { |
| 24 | |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 25 | /// \brief A parser that gathers additional information about tokens. |
| 26 | /// |
Alexander Kornienko | 3fd9ccd | 2013-03-12 16:28:18 +0000 | [diff] [blame] | 27 | /// The \c TokenAnnotator tries to match parenthesis and square brakets and |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 28 | /// store a parenthesis levels. It also tries to resolve matching "<" and ">" |
| 29 | /// into template parameter lists. |
| 30 | class AnnotatingParser { |
| 31 | public: |
Alexander Kornienko | 0089510 | 2013-06-05 14:09:10 +0000 | [diff] [blame] | 32 | AnnotatingParser(AnnotatedLine &Line, IdentifierInfo &Ident_in) |
| 33 | : Line(Line), CurrentToken(Line.First), KeywordVirtualFound(false), |
Daniel Jasper | 2ca3741 | 2013-07-09 14:36:48 +0000 | [diff] [blame] | 34 | NameFound(false), AutoFound(false), Ident_in(Ident_in) { |
Nico Weber | 2726877 | 2013-06-26 00:30:14 +0000 | [diff] [blame] | 35 | Contexts.push_back(Context(tok::unknown, 1, /*IsExpression=*/false)); |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 36 | } |
| 37 | |
Nico Weber | 95e8e46 | 2013-02-12 16:17:07 +0000 | [diff] [blame] | 38 | private: |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 39 | bool parseAngle() { |
| 40 | if (CurrentToken == NULL) |
| 41 | return false; |
Daniel Jasper | 923ebef | 2013-03-14 13:45:21 +0000 | [diff] [blame] | 42 | ScopedContextCreator ContextCreator(*this, tok::less, 10); |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 43 | FormatToken *Left = CurrentToken->Previous; |
Daniel Jasper | 4e77809 | 2013-02-06 10:05:46 +0000 | [diff] [blame] | 44 | Contexts.back().IsExpression = false; |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 45 | while (CurrentToken != NULL) { |
| 46 | if (CurrentToken->is(tok::greater)) { |
| 47 | Left->MatchingParen = CurrentToken; |
| 48 | CurrentToken->MatchingParen = Left; |
| 49 | CurrentToken->Type = TT_TemplateCloser; |
| 50 | next(); |
| 51 | return true; |
| 52 | } |
Alexander Kornienko | e74de28 | 2013-03-13 14:41:29 +0000 | [diff] [blame] | 53 | if (CurrentToken->isOneOf(tok::r_paren, tok::r_square, tok::r_brace, |
Daniel Jasper | 5d823e3 | 2013-05-15 13:46:48 +0000 | [diff] [blame] | 54 | tok::question, tok::colon)) |
| 55 | return false; |
Daniel Jasper | 0348be0 | 2013-06-01 18:56:00 +0000 | [diff] [blame] | 56 | // If a && or || is found and interpreted as a binary operator, this set |
Daniel Jasper | 15f33f0 | 2013-06-03 16:16:41 +0000 | [diff] [blame] | 57 | // of angles is likely part of something like "a < b && c > d". If the |
Daniel Jasper | 0348be0 | 2013-06-01 18:56:00 +0000 | [diff] [blame] | 58 | // angles are inside an expression, the ||/&& might also be a binary |
| 59 | // operator that was misinterpreted because we are parsing template |
| 60 | // parameters. |
| 61 | // FIXME: This is getting out of hand, write a decent parser. |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 62 | if (CurrentToken->Previous->isOneOf(tok::pipepipe, tok::ampamp) && |
Daniel Jasper | 0348be0 | 2013-06-01 18:56:00 +0000 | [diff] [blame] | 63 | (CurrentToken->Previous->Type == TT_BinaryOperator || |
| 64 | Contexts[Contexts.size() - 2].IsExpression) && |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 65 | Line.First->isNot(tok::kw_template)) |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 66 | return false; |
Daniel Jasper | 9fc56f2 | 2013-02-14 15:01:34 +0000 | [diff] [blame] | 67 | updateParameterCount(Left, CurrentToken); |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 68 | if (!consumeToken()) |
| 69 | return false; |
| 70 | } |
| 71 | return false; |
| 72 | } |
| 73 | |
| 74 | bool parseParens(bool LookForDecls = false) { |
| 75 | if (CurrentToken == NULL) |
| 76 | return false; |
Daniel Jasper | 923ebef | 2013-03-14 13:45:21 +0000 | [diff] [blame] | 77 | ScopedContextCreator ContextCreator(*this, tok::l_paren, 1); |
Daniel Jasper | 4e77809 | 2013-02-06 10:05:46 +0000 | [diff] [blame] | 78 | |
| 79 | // FIXME: This is a bit of a hack. Do better. |
| 80 | Contexts.back().ColonIsForRangeExpr = |
| 81 | Contexts.size() == 2 && Contexts[0].ColonIsForRangeExpr; |
| 82 | |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 83 | bool StartsObjCMethodExpr = false; |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 84 | FormatToken *Left = CurrentToken->Previous; |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 85 | if (CurrentToken->is(tok::caret)) { |
| 86 | // ^( starts a block. |
| 87 | Left->Type = TT_ObjCBlockLParen; |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 88 | } else if (FormatToken *MaybeSel = Left->Previous) { |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 89 | // @selector( starts a selector. |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 90 | if (MaybeSel->isObjCAtKeyword(tok::objc_selector) && MaybeSel->Previous && |
| 91 | MaybeSel->Previous->is(tok::at)) { |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 92 | StartsObjCMethodExpr = true; |
| 93 | } |
| 94 | } |
| 95 | |
Daniel Jasper | 4e77809 | 2013-02-06 10:05:46 +0000 | [diff] [blame] | 96 | if (StartsObjCMethodExpr) { |
| 97 | Contexts.back().ColonIsObjCMethodExpr = true; |
| 98 | Left->Type = TT_ObjCMethodExpr; |
| 99 | } |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 100 | |
Daniel Jasper | 431f591 | 2013-05-28 08:33:00 +0000 | [diff] [blame] | 101 | bool MightBeFunctionType = CurrentToken->is(tok::star); |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 102 | while (CurrentToken != NULL) { |
| 103 | // LookForDecls is set when "if (" has been seen. Check for |
| 104 | // 'identifier' '*' 'identifier' followed by not '=' -- this |
| 105 | // '*' has to be a binary operator but determineStarAmpUsage() will |
| 106 | // categorize it as an unary operator, so set the right type here. |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 107 | if (LookForDecls && CurrentToken->Next) { |
Alexander Kornienko | 0bdc643 | 2013-07-04 14:47:51 +0000 | [diff] [blame] | 108 | FormatToken *Prev = CurrentToken->getPreviousNonComment(); |
Alexander Kornienko | 2785b9a | 2013-06-07 16:02:52 +0000 | [diff] [blame] | 109 | if (Prev) { |
Alexander Kornienko | 0bdc643 | 2013-07-04 14:47:51 +0000 | [diff] [blame] | 110 | FormatToken *PrevPrev = Prev->getPreviousNonComment(); |
Alexander Kornienko | 2785b9a | 2013-06-07 16:02:52 +0000 | [diff] [blame] | 111 | FormatToken *Next = CurrentToken->Next; |
| 112 | if (PrevPrev && PrevPrev->is(tok::identifier) && |
| 113 | Prev->isOneOf(tok::star, tok::amp, tok::ampamp) && |
| 114 | CurrentToken->is(tok::identifier) && Next->isNot(tok::equal)) { |
| 115 | Prev->Type = TT_BinaryOperator; |
| 116 | LookForDecls = false; |
| 117 | } |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 118 | } |
| 119 | } |
| 120 | |
| 121 | if (CurrentToken->is(tok::r_paren)) { |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 122 | if (MightBeFunctionType && CurrentToken->Next && |
| 123 | CurrentToken->Next->isOneOf(tok::l_paren, tok::l_square)) |
Daniel Jasper | 431f591 | 2013-05-28 08:33:00 +0000 | [diff] [blame] | 124 | Left->Type = TT_FunctionTypeLParen; |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 125 | Left->MatchingParen = CurrentToken; |
| 126 | CurrentToken->MatchingParen = Left; |
| 127 | |
Daniel Jasper | 63d7ced | 2013-02-05 10:07:47 +0000 | [diff] [blame] | 128 | if (StartsObjCMethodExpr) { |
Daniel Jasper | 4e77809 | 2013-02-06 10:05:46 +0000 | [diff] [blame] | 129 | CurrentToken->Type = TT_ObjCMethodExpr; |
| 130 | if (Contexts.back().FirstObjCSelectorName != NULL) { |
| 131 | Contexts.back().FirstObjCSelectorName->LongestObjCSelectorName = |
| 132 | Contexts.back().LongestObjCSelectorName; |
Daniel Jasper | 63d7ced | 2013-02-05 10:07:47 +0000 | [diff] [blame] | 133 | } |
| 134 | } |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 135 | |
| 136 | next(); |
| 137 | return true; |
| 138 | } |
Alexander Kornienko | e74de28 | 2013-03-13 14:41:29 +0000 | [diff] [blame] | 139 | if (CurrentToken->isOneOf(tok::r_square, tok::r_brace)) |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 140 | return false; |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 141 | if (CurrentToken->Previous->Type == TT_PointerOrReference && |
| 142 | CurrentToken->Previous->Previous->isOneOf(tok::l_paren, |
| 143 | tok::coloncolon)) |
Daniel Jasper | 431f591 | 2013-05-28 08:33:00 +0000 | [diff] [blame] | 144 | MightBeFunctionType = true; |
Daniel Jasper | 9fc56f2 | 2013-02-14 15:01:34 +0000 | [diff] [blame] | 145 | updateParameterCount(Left, CurrentToken); |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 146 | if (!consumeToken()) |
| 147 | return false; |
| 148 | } |
| 149 | return false; |
| 150 | } |
| 151 | |
| 152 | bool parseSquare() { |
| 153 | if (!CurrentToken) |
| 154 | return false; |
| 155 | |
Alexander Kornienko | d71b15b | 2013-06-17 13:19:53 +0000 | [diff] [blame] | 156 | // A '[' could be an index subscript (after an identifier or after |
Nico Weber | 051860e | 2013-02-10 02:08:05 +0000 | [diff] [blame] | 157 | // ')' or ']'), it could be the start of an Objective-C method |
| 158 | // expression, or it could the the start of an Objective-C array literal. |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 159 | FormatToken *Left = CurrentToken->Previous; |
Alexander Kornienko | 0bdc643 | 2013-07-04 14:47:51 +0000 | [diff] [blame] | 160 | FormatToken *Parent = Left->getPreviousNonComment(); |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 161 | bool StartsObjCMethodExpr = |
Daniel Jasper | 6f21a98 | 2013-03-13 07:49:51 +0000 | [diff] [blame] | 162 | Contexts.back().CanBeExpression && |
Alexander Kornienko | e74de28 | 2013-03-13 14:41:29 +0000 | [diff] [blame] | 163 | (!Parent || Parent->isOneOf(tok::colon, tok::l_square, tok::l_paren, |
| 164 | tok::kw_return, tok::kw_throw) || |
Daniel Jasper | ac3223e | 2013-04-10 09:49:49 +0000 | [diff] [blame] | 165 | Parent->isUnaryOperator() || Parent->Type == TT_ObjCForIn || |
Alexander Kornienko | e74de28 | 2013-03-13 14:41:29 +0000 | [diff] [blame] | 166 | Parent->Type == TT_CastRParen || |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 167 | getBinOpPrecedence(Parent->Tok.getKind(), true, true) > prec::Unknown); |
Daniel Jasper | 923ebef | 2013-03-14 13:45:21 +0000 | [diff] [blame] | 168 | ScopedContextCreator ContextCreator(*this, tok::l_square, 10); |
Daniel Jasper | 6f21a98 | 2013-03-13 07:49:51 +0000 | [diff] [blame] | 169 | Contexts.back().IsExpression = true; |
Nico Weber | 051860e | 2013-02-10 02:08:05 +0000 | [diff] [blame] | 170 | bool StartsObjCArrayLiteral = Parent && Parent->is(tok::at); |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 171 | |
Daniel Jasper | 4e77809 | 2013-02-06 10:05:46 +0000 | [diff] [blame] | 172 | if (StartsObjCMethodExpr) { |
| 173 | Contexts.back().ColonIsObjCMethodExpr = true; |
| 174 | Left->Type = TT_ObjCMethodExpr; |
Nico Weber | 051860e | 2013-02-10 02:08:05 +0000 | [diff] [blame] | 175 | } else if (StartsObjCArrayLiteral) { |
| 176 | Left->Type = TT_ObjCArrayLiteral; |
Daniel Jasper | 4e77809 | 2013-02-06 10:05:46 +0000 | [diff] [blame] | 177 | } |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 178 | |
| 179 | while (CurrentToken != NULL) { |
| 180 | if (CurrentToken->is(tok::r_square)) { |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 181 | if (CurrentToken->Next && CurrentToken->Next->is(tok::l_paren)) { |
Nico Weber | e8a9798 | 2013-02-06 06:20:11 +0000 | [diff] [blame] | 182 | // An ObjC method call is rarely followed by an open parenthesis. |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 183 | // FIXME: Do we incorrectly label ":" with this? |
| 184 | StartsObjCMethodExpr = false; |
| 185 | Left->Type = TT_Unknown; |
| 186 | } |
Daniel Jasper | 0178673 | 2013-02-04 07:21:18 +0000 | [diff] [blame] | 187 | if (StartsObjCMethodExpr) { |
Daniel Jasper | 4e77809 | 2013-02-06 10:05:46 +0000 | [diff] [blame] | 188 | CurrentToken->Type = TT_ObjCMethodExpr; |
Nico Weber | e8a9798 | 2013-02-06 06:20:11 +0000 | [diff] [blame] | 189 | // determineStarAmpUsage() thinks that '*' '[' is allocating an |
| 190 | // array of pointers, but if '[' starts a selector then '*' is a |
| 191 | // binary operator. |
Alexander Kornienko | 3fd9ccd | 2013-03-12 16:28:18 +0000 | [diff] [blame] | 192 | if (Parent != NULL && Parent->Type == TT_PointerOrReference) |
Nico Weber | 4ed7f3e | 2013-02-06 16:54:35 +0000 | [diff] [blame] | 193 | Parent->Type = TT_BinaryOperator; |
Nico Weber | 051860e | 2013-02-10 02:08:05 +0000 | [diff] [blame] | 194 | } else if (StartsObjCArrayLiteral) { |
| 195 | CurrentToken->Type = TT_ObjCArrayLiteral; |
Daniel Jasper | 0178673 | 2013-02-04 07:21:18 +0000 | [diff] [blame] | 196 | } |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 197 | Left->MatchingParen = CurrentToken; |
| 198 | CurrentToken->MatchingParen = Left; |
Daniel Jasper | 4e77809 | 2013-02-06 10:05:46 +0000 | [diff] [blame] | 199 | if (Contexts.back().FirstObjCSelectorName != NULL) |
| 200 | Contexts.back().FirstObjCSelectorName->LongestObjCSelectorName = |
| 201 | Contexts.back().LongestObjCSelectorName; |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 202 | next(); |
| 203 | return true; |
| 204 | } |
Alexander Kornienko | e74de28 | 2013-03-13 14:41:29 +0000 | [diff] [blame] | 205 | if (CurrentToken->isOneOf(tok::r_paren, tok::r_brace)) |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 206 | return false; |
Daniel Jasper | 9fc56f2 | 2013-02-14 15:01:34 +0000 | [diff] [blame] | 207 | updateParameterCount(Left, CurrentToken); |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 208 | if (!consumeToken()) |
| 209 | return false; |
| 210 | } |
| 211 | return false; |
| 212 | } |
| 213 | |
| 214 | bool parseBrace() { |
Daniel Jasper | 53e72cd | 2013-05-06 08:27:33 +0000 | [diff] [blame] | 215 | if (CurrentToken != NULL) { |
| 216 | ScopedContextCreator ContextCreator(*this, tok::l_brace, 1); |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 217 | FormatToken *Left = CurrentToken->Previous; |
Nico Weber | f2ff812 | 2013-05-26 05:39:26 +0000 | [diff] [blame] | 218 | |
Alexander Kornienko | 0bdc643 | 2013-07-04 14:47:51 +0000 | [diff] [blame] | 219 | FormatToken *Parent = Left->getPreviousNonComment(); |
Nico Weber | f2ff812 | 2013-05-26 05:39:26 +0000 | [diff] [blame] | 220 | bool StartsObjCDictLiteral = Parent && Parent->is(tok::at); |
| 221 | if (StartsObjCDictLiteral) { |
| 222 | Contexts.back().ColonIsObjCDictLiteral = true; |
| 223 | Left->Type = TT_ObjCDictLiteral; |
| 224 | } |
| 225 | |
Daniel Jasper | 53e72cd | 2013-05-06 08:27:33 +0000 | [diff] [blame] | 226 | while (CurrentToken != NULL) { |
| 227 | if (CurrentToken->is(tok::r_brace)) { |
Nico Weber | f2ff812 | 2013-05-26 05:39:26 +0000 | [diff] [blame] | 228 | if (StartsObjCDictLiteral) |
| 229 | CurrentToken->Type = TT_ObjCDictLiteral; |
Daniel Jasper | 53e72cd | 2013-05-06 08:27:33 +0000 | [diff] [blame] | 230 | Left->MatchingParen = CurrentToken; |
| 231 | CurrentToken->MatchingParen = Left; |
| 232 | next(); |
| 233 | return true; |
| 234 | } |
| 235 | if (CurrentToken->isOneOf(tok::r_paren, tok::r_square)) |
| 236 | return false; |
| 237 | updateParameterCount(Left, CurrentToken); |
| 238 | if (!consumeToken()) |
| 239 | return false; |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 240 | } |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 241 | } |
Daniel Jasper | 53e72cd | 2013-05-06 08:27:33 +0000 | [diff] [blame] | 242 | // No closing "}" found, this probably starts a definition. |
| 243 | Line.StartsDefinition = true; |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 244 | return true; |
| 245 | } |
Daniel Jasper | c4615b7 | 2013-02-20 12:56:39 +0000 | [diff] [blame] | 246 | |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 247 | void updateParameterCount(FormatToken *Left, FormatToken *Current) { |
Daniel Jasper | 9fc56f2 | 2013-02-14 15:01:34 +0000 | [diff] [blame] | 248 | if (Current->is(tok::comma)) |
| 249 | ++Left->ParameterCount; |
| 250 | else if (Left->ParameterCount == 0 && Current->isNot(tok::comment)) |
| 251 | Left->ParameterCount = 1; |
| 252 | } |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 253 | |
| 254 | bool parseConditional() { |
| 255 | while (CurrentToken != NULL) { |
| 256 | if (CurrentToken->is(tok::colon)) { |
| 257 | CurrentToken->Type = TT_ConditionalExpr; |
| 258 | next(); |
| 259 | return true; |
| 260 | } |
| 261 | if (!consumeToken()) |
| 262 | return false; |
| 263 | } |
| 264 | return false; |
| 265 | } |
| 266 | |
| 267 | bool parseTemplateDeclaration() { |
| 268 | if (CurrentToken != NULL && CurrentToken->is(tok::less)) { |
| 269 | CurrentToken->Type = TT_TemplateOpener; |
| 270 | next(); |
| 271 | if (!parseAngle()) |
| 272 | return false; |
Daniel Jasper | 34511fb | 2013-02-19 17:14:38 +0000 | [diff] [blame] | 273 | if (CurrentToken != NULL) |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 274 | CurrentToken->Previous->ClosesTemplateDeclaration = true; |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 275 | return true; |
| 276 | } |
| 277 | return false; |
| 278 | } |
| 279 | |
| 280 | bool consumeToken() { |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 281 | FormatToken *Tok = CurrentToken; |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 282 | next(); |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 283 | switch (Tok->Tok.getKind()) { |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 284 | case tok::plus: |
| 285 | case tok::minus: |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 286 | if (Tok->Previous == NULL && Line.MustBeDeclaration) |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 287 | Tok->Type = TT_ObjCMethodSpecifier; |
| 288 | break; |
| 289 | case tok::colon: |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 290 | if (Tok->Previous == NULL) |
Daniel Jasper | cf6d76a | 2013-03-18 12:50:26 +0000 | [diff] [blame] | 291 | return false; |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 292 | // Colons from ?: are handled in parseConditional(). |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 293 | if (Tok->Previous->is(tok::r_paren) && Contexts.size() == 1) { |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 294 | Tok->Type = TT_CtorInitializerColon; |
Nico Weber | f2ff812 | 2013-05-26 05:39:26 +0000 | [diff] [blame] | 295 | } else if (Contexts.back().ColonIsObjCDictLiteral) { |
| 296 | Tok->Type = TT_ObjCDictLiteral; |
Daniel Jasper | 4e77809 | 2013-02-06 10:05:46 +0000 | [diff] [blame] | 297 | } else if (Contexts.back().ColonIsObjCMethodExpr || |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 298 | Line.First->Type == TT_ObjCMethodSpecifier) { |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 299 | Tok->Type = TT_ObjCMethodExpr; |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 300 | Tok->Previous->Type = TT_ObjCSelectorName; |
Alexander Kornienko | 0089510 | 2013-06-05 14:09:10 +0000 | [diff] [blame] | 301 | if (Tok->Previous->CodePointCount > |
| 302 | Contexts.back().LongestObjCSelectorName) { |
| 303 | Contexts.back().LongestObjCSelectorName = |
| 304 | Tok->Previous->CodePointCount; |
| 305 | } |
Daniel Jasper | 4e77809 | 2013-02-06 10:05:46 +0000 | [diff] [blame] | 306 | if (Contexts.back().FirstObjCSelectorName == NULL) |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 307 | Contexts.back().FirstObjCSelectorName = Tok->Previous; |
Daniel Jasper | 4e77809 | 2013-02-06 10:05:46 +0000 | [diff] [blame] | 308 | } else if (Contexts.back().ColonIsForRangeExpr) { |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 309 | Tok->Type = TT_RangeBasedForLoopColon; |
Daniel Jasper | 6cabab4 | 2013-02-14 08:42:54 +0000 | [diff] [blame] | 310 | } else if (Contexts.size() == 1) { |
| 311 | Tok->Type = TT_InheritanceColon; |
Daniel Jasper | 923ebef | 2013-03-14 13:45:21 +0000 | [diff] [blame] | 312 | } else if (Contexts.back().ContextKind == tok::l_paren) { |
| 313 | Tok->Type = TT_InlineASMColon; |
Daniel Jasper | 63d7ced | 2013-02-05 10:07:47 +0000 | [diff] [blame] | 314 | } |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 315 | break; |
| 316 | case tok::kw_if: |
| 317 | case tok::kw_while: |
| 318 | if (CurrentToken != NULL && CurrentToken->is(tok::l_paren)) { |
| 319 | next(); |
Nico Weber | 2726877 | 2013-06-26 00:30:14 +0000 | [diff] [blame] | 320 | if (!parseParens(/*LookForDecls=*/true)) |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 321 | return false; |
| 322 | } |
| 323 | break; |
| 324 | case tok::kw_for: |
Daniel Jasper | 4e77809 | 2013-02-06 10:05:46 +0000 | [diff] [blame] | 325 | Contexts.back().ColonIsForRangeExpr = true; |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 326 | next(); |
| 327 | if (!parseParens()) |
| 328 | return false; |
| 329 | break; |
| 330 | case tok::l_paren: |
| 331 | if (!parseParens()) |
| 332 | return false; |
Daniel Jasper | 1407bee | 2013-04-11 14:29:13 +0000 | [diff] [blame] | 333 | if (Line.MustBeDeclaration && NameFound && !Contexts.back().IsExpression) |
Daniel Jasper | 3c08a81 | 2013-02-24 18:54:32 +0000 | [diff] [blame] | 334 | Line.MightBeFunctionDecl = true; |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 335 | break; |
| 336 | case tok::l_square: |
| 337 | if (!parseSquare()) |
| 338 | return false; |
| 339 | break; |
| 340 | case tok::l_brace: |
| 341 | if (!parseBrace()) |
| 342 | return false; |
| 343 | break; |
| 344 | case tok::less: |
| 345 | if (parseAngle()) |
| 346 | Tok->Type = TT_TemplateOpener; |
| 347 | else { |
| 348 | Tok->Type = TT_BinaryOperator; |
| 349 | CurrentToken = Tok; |
| 350 | next(); |
| 351 | } |
| 352 | break; |
| 353 | case tok::r_paren: |
| 354 | case tok::r_square: |
| 355 | return false; |
| 356 | case tok::r_brace: |
| 357 | // Lines can start with '}'. |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 358 | if (Tok->Previous != NULL) |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 359 | return false; |
| 360 | break; |
| 361 | case tok::greater: |
| 362 | Tok->Type = TT_BinaryOperator; |
| 363 | break; |
| 364 | case tok::kw_operator: |
Daniel Jasper | 2b4c924 | 2013-02-11 08:01:18 +0000 | [diff] [blame] | 365 | while (CurrentToken && CurrentToken->isNot(tok::l_paren)) { |
Alexander Kornienko | e74de28 | 2013-03-13 14:41:29 +0000 | [diff] [blame] | 366 | if (CurrentToken->isOneOf(tok::star, tok::amp)) |
Daniel Jasper | 2b4c924 | 2013-02-11 08:01:18 +0000 | [diff] [blame] | 367 | CurrentToken->Type = TT_PointerOrReference; |
| 368 | consumeToken(); |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 369 | } |
Daniel Jasper | 6ea933c | 2013-05-10 07:59:58 +0000 | [diff] [blame] | 370 | if (CurrentToken) { |
Daniel Jasper | 2b4c924 | 2013-02-11 08:01:18 +0000 | [diff] [blame] | 371 | CurrentToken->Type = TT_OverloadedOperatorLParen; |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 372 | if (CurrentToken->Previous->Type == TT_BinaryOperator) |
| 373 | CurrentToken->Previous->Type = TT_OverloadedOperator; |
Daniel Jasper | 6ea933c | 2013-05-10 07:59:58 +0000 | [diff] [blame] | 374 | } |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 375 | break; |
| 376 | case tok::question: |
| 377 | parseConditional(); |
| 378 | break; |
| 379 | case tok::kw_template: |
| 380 | parseTemplateDeclaration(); |
| 381 | break; |
Nico Weber | c2e6d2a | 2013-02-11 15:32:15 +0000 | [diff] [blame] | 382 | case tok::identifier: |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 383 | if (Line.First->is(tok::kw_for) && |
| 384 | Tok->Tok.getIdentifierInfo() == &Ident_in) |
Nico Weber | c2e6d2a | 2013-02-11 15:32:15 +0000 | [diff] [blame] | 385 | Tok->Type = TT_ObjCForIn; |
| 386 | break; |
Daniel Jasper | 8ed9f2b | 2013-04-03 13:36:17 +0000 | [diff] [blame] | 387 | case tok::comma: |
| 388 | if (Contexts.back().FirstStartOfName) |
| 389 | Contexts.back().FirstStartOfName->PartOfMultiVariableDeclStmt = true; |
| 390 | break; |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 391 | default: |
| 392 | break; |
| 393 | } |
| 394 | return true; |
| 395 | } |
| 396 | |
| 397 | void parseIncludeDirective() { |
| 398 | next(); |
| 399 | if (CurrentToken != NULL && CurrentToken->is(tok::less)) { |
| 400 | next(); |
| 401 | while (CurrentToken != NULL) { |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 402 | if (CurrentToken->isNot(tok::comment) || CurrentToken->Next) |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 403 | CurrentToken->Type = TT_ImplicitStringLiteral; |
| 404 | next(); |
| 405 | } |
| 406 | } else { |
| 407 | while (CurrentToken != NULL) { |
Daniel Jasper | 3a20441 | 2013-02-23 07:46:38 +0000 | [diff] [blame] | 408 | if (CurrentToken->is(tok::string_literal)) |
| 409 | // Mark these string literals as "implicit" literals, too, so that |
| 410 | // they are not split or line-wrapped. |
| 411 | CurrentToken->Type = TT_ImplicitStringLiteral; |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 412 | next(); |
| 413 | } |
| 414 | } |
| 415 | } |
| 416 | |
| 417 | void parseWarningOrError() { |
| 418 | next(); |
| 419 | // We still want to format the whitespace left of the first token of the |
| 420 | // warning or error. |
| 421 | next(); |
| 422 | while (CurrentToken != NULL) { |
| 423 | CurrentToken->Type = TT_ImplicitStringLiteral; |
| 424 | next(); |
| 425 | } |
| 426 | } |
| 427 | |
| 428 | void parsePreprocessorDirective() { |
| 429 | next(); |
| 430 | if (CurrentToken == NULL) |
| 431 | return; |
| 432 | // Hashes in the middle of a line can lead to any strange token |
| 433 | // sequence. |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 434 | if (CurrentToken->Tok.getIdentifierInfo() == NULL) |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 435 | return; |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 436 | switch (CurrentToken->Tok.getIdentifierInfo()->getPPKeywordID()) { |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 437 | case tok::pp_include: |
| 438 | case tok::pp_import: |
| 439 | parseIncludeDirective(); |
| 440 | break; |
| 441 | case tok::pp_error: |
| 442 | case tok::pp_warning: |
| 443 | parseWarningOrError(); |
| 444 | break; |
Daniel Jasper | aae7bad | 2013-04-23 13:54:04 +0000 | [diff] [blame] | 445 | case tok::pp_if: |
| 446 | case tok::pp_elif: |
| 447 | parseLine(); |
| 448 | break; |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 449 | default: |
| 450 | break; |
| 451 | } |
Daniel Jasper | 5b7e7b0 | 2013-02-05 09:34:14 +0000 | [diff] [blame] | 452 | while (CurrentToken != NULL) |
| 453 | next(); |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 454 | } |
| 455 | |
Nico Weber | 95e8e46 | 2013-02-12 16:17:07 +0000 | [diff] [blame] | 456 | public: |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 457 | LineType parseLine() { |
| 458 | int PeriodsAndArrows = 0; |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 459 | FormatToken *LastPeriodOrArrow = NULL; |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 460 | bool CanBeBuilderTypeStmt = true; |
| 461 | if (CurrentToken->is(tok::hash)) { |
| 462 | parsePreprocessorDirective(); |
| 463 | return LT_PreprocessorDirective; |
| 464 | } |
| 465 | while (CurrentToken != NULL) { |
| 466 | if (CurrentToken->is(tok::kw_virtual)) |
| 467 | KeywordVirtualFound = true; |
Alexander Kornienko | e74de28 | 2013-03-13 14:41:29 +0000 | [diff] [blame] | 468 | if (CurrentToken->isOneOf(tok::period, tok::arrow)) { |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 469 | ++PeriodsAndArrows; |
Daniel Jasper | 2484971 | 2013-03-01 16:48:32 +0000 | [diff] [blame] | 470 | LastPeriodOrArrow = CurrentToken; |
| 471 | } |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 472 | FormatToken *TheToken = CurrentToken; |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 473 | if (!consumeToken()) |
| 474 | return LT_Invalid; |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 475 | if (TheToken->getPrecedence() > prec::Assignment && |
Daniel Jasper | 82282dc | 2013-02-18 13:52:06 +0000 | [diff] [blame] | 476 | TheToken->Type == TT_BinaryOperator) |
Daniel Jasper | 4a544e5 | 2013-02-15 20:33:06 +0000 | [diff] [blame] | 477 | CanBeBuilderTypeStmt = false; |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 478 | } |
| 479 | if (KeywordVirtualFound) |
| 480 | return LT_VirtualFunctionDecl; |
| 481 | |
| 482 | // Assume a builder-type call if there are 2 or more "." and "->". |
Daniel Jasper | 2484971 | 2013-03-01 16:48:32 +0000 | [diff] [blame] | 483 | if (PeriodsAndArrows >= 2 && CanBeBuilderTypeStmt) { |
| 484 | LastPeriodOrArrow->LastInChainOfCalls = true; |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 485 | return LT_BuilderTypeCall; |
Daniel Jasper | 2484971 | 2013-03-01 16:48:32 +0000 | [diff] [blame] | 486 | } |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 487 | |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 488 | if (Line.First->Type == TT_ObjCMethodSpecifier) { |
Daniel Jasper | 4e77809 | 2013-02-06 10:05:46 +0000 | [diff] [blame] | 489 | if (Contexts.back().FirstObjCSelectorName != NULL) |
| 490 | Contexts.back().FirstObjCSelectorName->LongestObjCSelectorName = |
| 491 | Contexts.back().LongestObjCSelectorName; |
Daniel Jasper | 63d7ced | 2013-02-05 10:07:47 +0000 | [diff] [blame] | 492 | return LT_ObjCMethodDecl; |
| 493 | } |
| 494 | |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 495 | return LT_Other; |
| 496 | } |
| 497 | |
Nico Weber | 95e8e46 | 2013-02-12 16:17:07 +0000 | [diff] [blame] | 498 | private: |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 499 | void next() { |
Daniel Jasper | 0178673 | 2013-02-04 07:21:18 +0000 | [diff] [blame] | 500 | if (CurrentToken != NULL) { |
| 501 | determineTokenType(*CurrentToken); |
Daniel Jasper | 4e77809 | 2013-02-06 10:05:46 +0000 | [diff] [blame] | 502 | CurrentToken->BindingStrength = Contexts.back().BindingStrength; |
Daniel Jasper | 0178673 | 2013-02-04 07:21:18 +0000 | [diff] [blame] | 503 | } |
| 504 | |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 505 | if (CurrentToken != NULL) |
| 506 | CurrentToken = CurrentToken->Next; |
Daniel Jasper | d0f349b | 2013-02-18 12:44:35 +0000 | [diff] [blame] | 507 | |
| 508 | // Reset token type in case we have already looked at it and then recovered |
| 509 | // from an error (e.g. failure to find the matching >). |
| 510 | if (CurrentToken != NULL) |
| 511 | CurrentToken->Type = TT_Unknown; |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 512 | } |
| 513 | |
Daniel Jasper | 4e77809 | 2013-02-06 10:05:46 +0000 | [diff] [blame] | 514 | /// \brief A struct to hold information valid in a specific context, e.g. |
| 515 | /// a pair of parenthesis. |
| 516 | struct Context { |
Daniel Jasper | 923ebef | 2013-03-14 13:45:21 +0000 | [diff] [blame] | 517 | Context(tok::TokenKind ContextKind, unsigned BindingStrength, |
| 518 | bool IsExpression) |
| 519 | : ContextKind(ContextKind), BindingStrength(BindingStrength), |
| 520 | LongestObjCSelectorName(0), ColonIsForRangeExpr(false), |
Nico Weber | f2ff812 | 2013-05-26 05:39:26 +0000 | [diff] [blame] | 521 | ColonIsObjCDictLiteral(false), ColonIsObjCMethodExpr(false), |
| 522 | FirstObjCSelectorName(NULL), FirstStartOfName(NULL), |
| 523 | IsExpression(IsExpression), CanBeExpression(true) {} |
Daniel Jasper | 0178673 | 2013-02-04 07:21:18 +0000 | [diff] [blame] | 524 | |
Daniel Jasper | 923ebef | 2013-03-14 13:45:21 +0000 | [diff] [blame] | 525 | tok::TokenKind ContextKind; |
Daniel Jasper | 4e77809 | 2013-02-06 10:05:46 +0000 | [diff] [blame] | 526 | unsigned BindingStrength; |
| 527 | unsigned LongestObjCSelectorName; |
| 528 | bool ColonIsForRangeExpr; |
Nico Weber | f2ff812 | 2013-05-26 05:39:26 +0000 | [diff] [blame] | 529 | bool ColonIsObjCDictLiteral; |
Daniel Jasper | 4e77809 | 2013-02-06 10:05:46 +0000 | [diff] [blame] | 530 | bool ColonIsObjCMethodExpr; |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 531 | FormatToken *FirstObjCSelectorName; |
| 532 | FormatToken *FirstStartOfName; |
Daniel Jasper | 4e77809 | 2013-02-06 10:05:46 +0000 | [diff] [blame] | 533 | bool IsExpression; |
Daniel Jasper | 6f21a98 | 2013-03-13 07:49:51 +0000 | [diff] [blame] | 534 | bool CanBeExpression; |
Daniel Jasper | 4e77809 | 2013-02-06 10:05:46 +0000 | [diff] [blame] | 535 | }; |
| 536 | |
| 537 | /// \brief Puts a new \c Context onto the stack \c Contexts for the lifetime |
| 538 | /// of each instance. |
| 539 | struct ScopedContextCreator { |
| 540 | AnnotatingParser &P; |
| 541 | |
Daniel Jasper | 923ebef | 2013-03-14 13:45:21 +0000 | [diff] [blame] | 542 | ScopedContextCreator(AnnotatingParser &P, tok::TokenKind ContextKind, |
| 543 | unsigned Increase) |
| 544 | : P(P) { |
Daniel Jasper | 2a409b6 | 2013-07-08 14:34:09 +0000 | [diff] [blame] | 545 | P.Contexts.push_back(Context(ContextKind, |
| 546 | P.Contexts.back().BindingStrength + Increase, |
| 547 | P.Contexts.back().IsExpression)); |
Daniel Jasper | 4e77809 | 2013-02-06 10:05:46 +0000 | [diff] [blame] | 548 | } |
| 549 | |
| 550 | ~ScopedContextCreator() { P.Contexts.pop_back(); } |
| 551 | }; |
Daniel Jasper | 0178673 | 2013-02-04 07:21:18 +0000 | [diff] [blame] | 552 | |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 553 | void determineTokenType(FormatToken &Current) { |
| 554 | if (Current.getPrecedence() == prec::Assignment && |
| 555 | (!Current.Previous || Current.Previous->isNot(tok::kw_operator))) { |
Daniel Jasper | 4e77809 | 2013-02-06 10:05:46 +0000 | [diff] [blame] | 556 | Contexts.back().IsExpression = true; |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 557 | for (FormatToken *Previous = Current.Previous; |
Nico Weber | 95e8e46 | 2013-02-12 16:17:07 +0000 | [diff] [blame] | 558 | Previous && Previous->isNot(tok::comma); |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 559 | Previous = Previous->Previous) { |
Daniel Jasper | 9c65b06 | 2013-02-27 11:43:50 +0000 | [diff] [blame] | 560 | if (Previous->is(tok::r_square)) |
| 561 | Previous = Previous->MatchingParen; |
Daniel Jasper | 0178673 | 2013-02-04 07:21:18 +0000 | [diff] [blame] | 562 | if (Previous->Type == TT_BinaryOperator && |
Alexander Kornienko | e74de28 | 2013-03-13 14:41:29 +0000 | [diff] [blame] | 563 | Previous->isOneOf(tok::star, tok::amp)) { |
Daniel Jasper | 0178673 | 2013-02-04 07:21:18 +0000 | [diff] [blame] | 564 | Previous->Type = TT_PointerOrReference; |
| 565 | } |
Daniel Jasper | 0178673 | 2013-02-04 07:21:18 +0000 | [diff] [blame] | 566 | } |
Alexander Kornienko | e74de28 | 2013-03-13 14:41:29 +0000 | [diff] [blame] | 567 | } else if (Current.isOneOf(tok::kw_return, tok::kw_throw) || |
Nico Weber | 95e8e46 | 2013-02-12 16:17:07 +0000 | [diff] [blame] | 568 | (Current.is(tok::l_paren) && !Line.MustBeDeclaration && |
Daniel Jasper | 378d93d | 2013-05-13 07:14:40 +0000 | [diff] [blame] | 569 | !Line.InPPDirective && |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 570 | (!Current.Previous || Current.Previous->isNot(tok::kw_for)))) { |
Daniel Jasper | 4e77809 | 2013-02-06 10:05:46 +0000 | [diff] [blame] | 571 | Contexts.back().IsExpression = true; |
Alexander Kornienko | e74de28 | 2013-03-13 14:41:29 +0000 | [diff] [blame] | 572 | } else if (Current.isOneOf(tok::r_paren, tok::greater, tok::comma)) { |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 573 | for (FormatToken *Previous = Current.Previous; |
Alexander Kornienko | e74de28 | 2013-03-13 14:41:29 +0000 | [diff] [blame] | 574 | Previous && Previous->isOneOf(tok::star, tok::amp); |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 575 | Previous = Previous->Previous) |
Nico Weber | 95e8e46 | 2013-02-12 16:17:07 +0000 | [diff] [blame] | 576 | Previous->Type = TT_PointerOrReference; |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 577 | } else if (Current.Previous && |
| 578 | Current.Previous->Type == TT_CtorInitializerColon) { |
Daniel Jasper | d0f349b | 2013-02-18 12:44:35 +0000 | [diff] [blame] | 579 | Contexts.back().IsExpression = true; |
Daniel Jasper | 6f21a98 | 2013-03-13 07:49:51 +0000 | [diff] [blame] | 580 | } else if (Current.is(tok::kw_new)) { |
| 581 | Contexts.back().CanBeExpression = false; |
Daniel Jasper | 16a69ef | 2013-05-03 14:41:24 +0000 | [diff] [blame] | 582 | } else if (Current.is(tok::semi)) { |
| 583 | // This should be the condition or increment in a for-loop. |
| 584 | Contexts.back().IsExpression = true; |
Nico Weber | 95e8e46 | 2013-02-12 16:17:07 +0000 | [diff] [blame] | 585 | } |
Daniel Jasper | 0178673 | 2013-02-04 07:21:18 +0000 | [diff] [blame] | 586 | |
| 587 | if (Current.Type == TT_Unknown) { |
Daniel Jasper | 6ac431c | 2013-07-02 09:47:29 +0000 | [diff] [blame] | 588 | if (isStartOfName(Current)) { |
Daniel Jasper | 8ed9f2b | 2013-04-03 13:36:17 +0000 | [diff] [blame] | 589 | Contexts.back().FirstStartOfName = &Current; |
Daniel Jasper | 3c08a81 | 2013-02-24 18:54:32 +0000 | [diff] [blame] | 590 | Current.Type = TT_StartOfName; |
Daniel Jasper | 1407bee | 2013-04-11 14:29:13 +0000 | [diff] [blame] | 591 | NameFound = true; |
Daniel Jasper | 2ca3741 | 2013-07-09 14:36:48 +0000 | [diff] [blame] | 592 | } else if (Current.is(tok::kw_auto)) { |
| 593 | AutoFound = true; |
| 594 | } else if (Current.is(tok::arrow) && AutoFound) { |
| 595 | Current.Type = TT_TrailingReturnArrow; |
Alexander Kornienko | e74de28 | 2013-03-13 14:41:29 +0000 | [diff] [blame] | 596 | } else if (Current.isOneOf(tok::star, tok::amp, tok::ampamp)) { |
Daniel Jasper | 4e77809 | 2013-02-06 10:05:46 +0000 | [diff] [blame] | 597 | Current.Type = |
Daniel Jasper | d6104f6 | 2013-07-05 13:30:40 +0000 | [diff] [blame] | 598 | determineStarAmpUsage(Current, Contexts.back().CanBeExpression && |
| 599 | Contexts.back().IsExpression); |
Alexander Kornienko | e74de28 | 2013-03-13 14:41:29 +0000 | [diff] [blame] | 600 | } else if (Current.isOneOf(tok::minus, tok::plus, tok::caret)) { |
Daniel Jasper | 0178673 | 2013-02-04 07:21:18 +0000 | [diff] [blame] | 601 | Current.Type = determinePlusMinusCaretUsage(Current); |
Alexander Kornienko | e74de28 | 2013-03-13 14:41:29 +0000 | [diff] [blame] | 602 | } else if (Current.isOneOf(tok::minusminus, tok::plusplus)) { |
Daniel Jasper | 0178673 | 2013-02-04 07:21:18 +0000 | [diff] [blame] | 603 | Current.Type = determineIncrementUsage(Current); |
| 604 | } else if (Current.is(tok::exclaim)) { |
| 605 | Current.Type = TT_UnaryOperator; |
Daniel Jasper | ac3223e | 2013-04-10 09:49:49 +0000 | [diff] [blame] | 606 | } else if (Current.isBinaryOperator()) { |
Daniel Jasper | 0178673 | 2013-02-04 07:21:18 +0000 | [diff] [blame] | 607 | Current.Type = TT_BinaryOperator; |
| 608 | } else if (Current.is(tok::comment)) { |
Alexander Kornienko | 0089510 | 2013-06-05 14:09:10 +0000 | [diff] [blame] | 609 | if (Current.TokenText.startswith("//")) |
Daniel Jasper | 0178673 | 2013-02-04 07:21:18 +0000 | [diff] [blame] | 610 | Current.Type = TT_LineComment; |
| 611 | else |
| 612 | Current.Type = TT_BlockComment; |
Nico Weber | 37d6931 | 2013-02-13 04:13:13 +0000 | [diff] [blame] | 613 | } else if (Current.is(tok::r_paren)) { |
Daniel Jasper | b8b4295 | 2013-05-31 16:14:28 +0000 | [diff] [blame] | 614 | FormatToken *LeftOfParens = NULL; |
| 615 | if (Current.MatchingParen) |
Alexander Kornienko | 0bdc643 | 2013-07-04 14:47:51 +0000 | [diff] [blame] | 616 | LeftOfParens = Current.MatchingParen->getPreviousNonComment(); |
Daniel Jasper | b8b4295 | 2013-05-31 16:14:28 +0000 | [diff] [blame] | 617 | bool IsCast = false; |
| 618 | bool ParensAreEmpty = Current.Previous == Current.MatchingParen; |
| 619 | bool ParensAreType = !Current.Previous || |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 620 | Current.Previous->Type == TT_PointerOrReference || |
Daniel Jasper | b8b4295 | 2013-05-31 16:14:28 +0000 | [diff] [blame] | 621 | Current.Previous->Type == TT_TemplateCloser || |
| 622 | isSimpleTypeSpecifier(*Current.Previous); |
Nico Weber | 37d6931 | 2013-02-13 04:13:13 +0000 | [diff] [blame] | 623 | bool ParensCouldEndDecl = |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 624 | Current.Next && |
| 625 | Current.Next->isOneOf(tok::equal, tok::semi, tok::l_brace); |
Daniel Jasper | 6a365aa | 2013-03-13 17:13:53 +0000 | [diff] [blame] | 626 | bool IsSizeOfOrAlignOf = |
Daniel Jasper | b8b4295 | 2013-05-31 16:14:28 +0000 | [diff] [blame] | 627 | LeftOfParens && |
| 628 | LeftOfParens->isOneOf(tok::kw_sizeof, tok::kw_alignof); |
| 629 | if (ParensAreType && !ParensCouldEndDecl && !IsSizeOfOrAlignOf && |
Daniel Jasper | 37eff83 | 2013-02-23 08:07:18 +0000 | [diff] [blame] | 630 | Contexts.back().IsExpression) |
Daniel Jasper | b8b4295 | 2013-05-31 16:14:28 +0000 | [diff] [blame] | 631 | IsCast = true; |
Daniel Jasper | 2a409b6 | 2013-07-08 14:34:09 +0000 | [diff] [blame] | 632 | if (Current.Next && Current.Next->isNot(tok::string_literal) && |
Daniel Jasper | b8b4295 | 2013-05-31 16:14:28 +0000 | [diff] [blame] | 633 | (Current.Next->Tok.isLiteral() || |
| 634 | Current.Next->isOneOf(tok::kw_sizeof, tok::kw_alignof))) |
| 635 | IsCast = true; |
| 636 | // If there is an identifier after the (), it is likely a cast, unless |
| 637 | // there is also an identifier before the (). |
Daniel Jasper | ff1a2e5 | 2013-06-06 08:20:20 +0000 | [diff] [blame] | 638 | if (LeftOfParens && (LeftOfParens->Tok.getIdentifierInfo() == NULL || |
| 639 | LeftOfParens->is(tok::kw_return)) && |
Daniel Jasper | 526df0f | 2013-07-08 14:58:01 +0000 | [diff] [blame] | 640 | LeftOfParens->Type != TT_OverloadedOperator && |
Nico Weber | 465e861 | 2013-06-25 00:55:57 +0000 | [diff] [blame] | 641 | LeftOfParens->Type != TT_TemplateCloser && Current.Next && |
| 642 | Current.Next->is(tok::identifier)) |
Daniel Jasper | b8b4295 | 2013-05-31 16:14:28 +0000 | [diff] [blame] | 643 | IsCast = true; |
| 644 | if (IsCast && !ParensAreEmpty) |
Nico Weber | 37d6931 | 2013-02-13 04:13:13 +0000 | [diff] [blame] | 645 | Current.Type = TT_CastRParen; |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 646 | } else if (Current.is(tok::at) && Current.Next) { |
| 647 | switch (Current.Next->Tok.getObjCKeywordID()) { |
Daniel Jasper | 0178673 | 2013-02-04 07:21:18 +0000 | [diff] [blame] | 648 | case tok::objc_interface: |
| 649 | case tok::objc_implementation: |
| 650 | case tok::objc_protocol: |
| 651 | Current.Type = TT_ObjCDecl; |
| 652 | break; |
| 653 | case tok::objc_property: |
| 654 | Current.Type = TT_ObjCProperty; |
| 655 | break; |
| 656 | default: |
| 657 | break; |
| 658 | } |
Daniel Jasper | 5ad390d | 2013-05-28 11:30:49 +0000 | [diff] [blame] | 659 | } else if (Current.is(tok::period)) { |
Alexander Kornienko | 0bdc643 | 2013-07-04 14:47:51 +0000 | [diff] [blame] | 660 | FormatToken *PreviousNoComment = Current.getPreviousNonComment(); |
Daniel Jasper | 5ad390d | 2013-05-28 11:30:49 +0000 | [diff] [blame] | 661 | if (PreviousNoComment && |
| 662 | PreviousNoComment->isOneOf(tok::comma, tok::l_brace)) |
| 663 | Current.Type = TT_DesignatedInitializerPeriod; |
Daniel Jasper | 0178673 | 2013-02-04 07:21:18 +0000 | [diff] [blame] | 664 | } |
| 665 | } |
| 666 | } |
| 667 | |
Daniel Jasper | 6ac431c | 2013-07-02 09:47:29 +0000 | [diff] [blame] | 668 | /// \brief Take a guess at whether \p Tok starts a name of a function or |
| 669 | /// variable declaration. |
| 670 | /// |
| 671 | /// This is a heuristic based on whether \p Tok is an identifier following |
| 672 | /// something that is likely a type. |
| 673 | bool isStartOfName(const FormatToken &Tok) { |
| 674 | if (Tok.isNot(tok::identifier) || Tok.Previous == NULL) |
| 675 | return false; |
| 676 | |
| 677 | // Skip "const" as it does not have an influence on whether this is a name. |
| 678 | FormatToken *PreviousNotConst = Tok.Previous; |
| 679 | while (PreviousNotConst != NULL && PreviousNotConst->is(tok::kw_const)) |
| 680 | PreviousNotConst = PreviousNotConst->Previous; |
| 681 | |
| 682 | if (PreviousNotConst == NULL) |
| 683 | return false; |
| 684 | |
Daniel Jasper | 2a409b6 | 2013-07-08 14:34:09 +0000 | [diff] [blame] | 685 | bool IsPPKeyword = PreviousNotConst->is(tok::identifier) && |
| 686 | PreviousNotConst->Previous && |
| 687 | PreviousNotConst->Previous->is(tok::hash); |
Daniel Jasper | 6ac431c | 2013-07-02 09:47:29 +0000 | [diff] [blame] | 688 | |
| 689 | return (!IsPPKeyword && PreviousNotConst->is(tok::identifier)) || |
| 690 | PreviousNotConst->Type == TT_PointerOrReference || |
| 691 | PreviousNotConst->Type == TT_TemplateCloser || |
| 692 | isSimpleTypeSpecifier(*PreviousNotConst); |
| 693 | } |
| 694 | |
Daniel Jasper | 0178673 | 2013-02-04 07:21:18 +0000 | [diff] [blame] | 695 | /// \brief Return the type of the given token assuming it is * or &. |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 696 | TokenType determineStarAmpUsage(const FormatToken &Tok, bool IsExpression) { |
Alexander Kornienko | 0bdc643 | 2013-07-04 14:47:51 +0000 | [diff] [blame] | 697 | const FormatToken *PrevToken = Tok.getPreviousNonComment(); |
Daniel Jasper | 0178673 | 2013-02-04 07:21:18 +0000 | [diff] [blame] | 698 | if (PrevToken == NULL) |
| 699 | return TT_UnaryOperator; |
| 700 | |
Alexander Kornienko | 0bdc643 | 2013-07-04 14:47:51 +0000 | [diff] [blame] | 701 | const FormatToken *NextToken = Tok.getNextNonComment(); |
Daniel Jasper | 0178673 | 2013-02-04 07:21:18 +0000 | [diff] [blame] | 702 | if (NextToken == NULL) |
| 703 | return TT_Unknown; |
| 704 | |
Daniel Jasper | 431f591 | 2013-05-28 08:33:00 +0000 | [diff] [blame] | 705 | if (PrevToken->is(tok::coloncolon) || |
| 706 | (PrevToken->is(tok::l_paren) && !IsExpression)) |
Daniel Jasper | 8a5d7cd | 2013-03-01 17:13:29 +0000 | [diff] [blame] | 707 | return TT_PointerOrReference; |
| 708 | |
Alexander Kornienko | e74de28 | 2013-03-13 14:41:29 +0000 | [diff] [blame] | 709 | if (PrevToken->isOneOf(tok::l_paren, tok::l_square, tok::l_brace, |
Daniel Jasper | d3cf17b | 2013-03-14 10:50:25 +0000 | [diff] [blame] | 710 | tok::comma, tok::semi, tok::kw_return, tok::colon, |
Daniel Jasper | dbef71e | 2013-05-07 14:17:18 +0000 | [diff] [blame] | 711 | tok::equal, tok::kw_delete) || |
Alexander Kornienko | e74de28 | 2013-03-13 14:41:29 +0000 | [diff] [blame] | 712 | PrevToken->Type == TT_BinaryOperator || |
Daniel Jasper | 0178673 | 2013-02-04 07:21:18 +0000 | [diff] [blame] | 713 | PrevToken->Type == TT_UnaryOperator || PrevToken->Type == TT_CastRParen) |
| 714 | return TT_UnaryOperator; |
| 715 | |
Nico Weber | e8a9798 | 2013-02-06 06:20:11 +0000 | [diff] [blame] | 716 | if (NextToken->is(tok::l_square)) |
| 717 | return TT_PointerOrReference; |
| 718 | |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 719 | if (PrevToken->Tok.isLiteral() || |
Alexander Kornienko | e74de28 | 2013-03-13 14:41:29 +0000 | [diff] [blame] | 720 | PrevToken->isOneOf(tok::r_paren, tok::r_square) || |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 721 | NextToken->Tok.isLiteral() || NextToken->isUnaryOperator()) |
Daniel Jasper | 0178673 | 2013-02-04 07:21:18 +0000 | [diff] [blame] | 722 | return TT_BinaryOperator; |
| 723 | |
Daniel Jasper | 0178673 | 2013-02-04 07:21:18 +0000 | [diff] [blame] | 724 | // It is very unlikely that we are going to find a pointer or reference type |
| 725 | // definition on the RHS of an assignment. |
| 726 | if (IsExpression) |
| 727 | return TT_BinaryOperator; |
| 728 | |
| 729 | return TT_PointerOrReference; |
| 730 | } |
| 731 | |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 732 | TokenType determinePlusMinusCaretUsage(const FormatToken &Tok) { |
Alexander Kornienko | 0bdc643 | 2013-07-04 14:47:51 +0000 | [diff] [blame] | 733 | const FormatToken *PrevToken = Tok.getPreviousNonComment(); |
Daniel Jasper | b8b4295 | 2013-05-31 16:14:28 +0000 | [diff] [blame] | 734 | if (PrevToken == NULL || PrevToken->Type == TT_CastRParen) |
Daniel Jasper | 0178673 | 2013-02-04 07:21:18 +0000 | [diff] [blame] | 735 | return TT_UnaryOperator; |
| 736 | |
| 737 | // Use heuristics to recognize unary operators. |
Alexander Kornienko | e74de28 | 2013-03-13 14:41:29 +0000 | [diff] [blame] | 738 | if (PrevToken->isOneOf(tok::equal, tok::l_paren, tok::comma, tok::l_square, |
| 739 | tok::question, tok::colon, tok::kw_return, |
| 740 | tok::kw_case, tok::at, tok::l_brace)) |
Daniel Jasper | 0178673 | 2013-02-04 07:21:18 +0000 | [diff] [blame] | 741 | return TT_UnaryOperator; |
| 742 | |
Nico Weber | ee0feec | 2013-02-05 16:21:00 +0000 | [diff] [blame] | 743 | // There can't be two consecutive binary operators. |
Daniel Jasper | 0178673 | 2013-02-04 07:21:18 +0000 | [diff] [blame] | 744 | if (PrevToken->Type == TT_BinaryOperator) |
| 745 | return TT_UnaryOperator; |
| 746 | |
| 747 | // Fall back to marking the token as binary operator. |
| 748 | return TT_BinaryOperator; |
| 749 | } |
| 750 | |
| 751 | /// \brief Determine whether ++/-- are pre- or post-increments/-decrements. |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 752 | TokenType determineIncrementUsage(const FormatToken &Tok) { |
Alexander Kornienko | 0bdc643 | 2013-07-04 14:47:51 +0000 | [diff] [blame] | 753 | const FormatToken *PrevToken = Tok.getPreviousNonComment(); |
Daniel Jasper | b8b4295 | 2013-05-31 16:14:28 +0000 | [diff] [blame] | 754 | if (PrevToken == NULL || PrevToken->Type == TT_CastRParen) |
Daniel Jasper | 0178673 | 2013-02-04 07:21:18 +0000 | [diff] [blame] | 755 | return TT_UnaryOperator; |
Alexander Kornienko | e74de28 | 2013-03-13 14:41:29 +0000 | [diff] [blame] | 756 | if (PrevToken->isOneOf(tok::r_paren, tok::r_square, tok::identifier)) |
Daniel Jasper | 0178673 | 2013-02-04 07:21:18 +0000 | [diff] [blame] | 757 | return TT_TrailingUnaryOperator; |
| 758 | |
| 759 | return TT_UnaryOperator; |
| 760 | } |
Daniel Jasper | 4e77809 | 2013-02-06 10:05:46 +0000 | [diff] [blame] | 761 | |
Daniel Jasper | 8ed9f2b | 2013-04-03 13:36:17 +0000 | [diff] [blame] | 762 | // FIXME: This is copy&pasted from Sema. Put it in a common place and remove |
| 763 | // duplication. |
| 764 | /// \brief Determine whether the token kind starts a simple-type-specifier. |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 765 | bool isSimpleTypeSpecifier(const FormatToken &Tok) const { |
| 766 | switch (Tok.Tok.getKind()) { |
Daniel Jasper | 8ed9f2b | 2013-04-03 13:36:17 +0000 | [diff] [blame] | 767 | case tok::kw_short: |
| 768 | case tok::kw_long: |
| 769 | case tok::kw___int64: |
| 770 | case tok::kw___int128: |
| 771 | case tok::kw_signed: |
| 772 | case tok::kw_unsigned: |
| 773 | case tok::kw_void: |
| 774 | case tok::kw_char: |
| 775 | case tok::kw_int: |
| 776 | case tok::kw_half: |
| 777 | case tok::kw_float: |
| 778 | case tok::kw_double: |
| 779 | case tok::kw_wchar_t: |
| 780 | case tok::kw_bool: |
| 781 | case tok::kw___underlying_type: |
Daniel Jasper | 8ed9f2b | 2013-04-03 13:36:17 +0000 | [diff] [blame] | 782 | case tok::annot_typename: |
| 783 | case tok::kw_char16_t: |
| 784 | case tok::kw_char32_t: |
| 785 | case tok::kw_typeof: |
| 786 | case tok::kw_decltype: |
Alexander Kornienko | 0089510 | 2013-06-05 14:09:10 +0000 | [diff] [blame] | 787 | return true; |
Daniel Jasper | 8ed9f2b | 2013-04-03 13:36:17 +0000 | [diff] [blame] | 788 | default: |
Alexander Kornienko | 0089510 | 2013-06-05 14:09:10 +0000 | [diff] [blame] | 789 | return false; |
Daniel Jasper | 8ed9f2b | 2013-04-03 13:36:17 +0000 | [diff] [blame] | 790 | } |
Daniel Jasper | 8ed9f2b | 2013-04-03 13:36:17 +0000 | [diff] [blame] | 791 | } |
| 792 | |
Daniel Jasper | 4e77809 | 2013-02-06 10:05:46 +0000 | [diff] [blame] | 793 | SmallVector<Context, 8> Contexts; |
| 794 | |
Daniel Jasper | 4e77809 | 2013-02-06 10:05:46 +0000 | [diff] [blame] | 795 | AnnotatedLine &Line; |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 796 | FormatToken *CurrentToken; |
Daniel Jasper | 4e77809 | 2013-02-06 10:05:46 +0000 | [diff] [blame] | 797 | bool KeywordVirtualFound; |
Daniel Jasper | 1407bee | 2013-04-11 14:29:13 +0000 | [diff] [blame] | 798 | bool NameFound; |
Daniel Jasper | 2ca3741 | 2013-07-09 14:36:48 +0000 | [diff] [blame] | 799 | bool AutoFound; |
Nico Weber | c2e6d2a | 2013-02-11 15:32:15 +0000 | [diff] [blame] | 800 | IdentifierInfo &Ident_in; |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 801 | }; |
| 802 | |
Daniel Jasper | 29f123b | 2013-02-08 15:28:42 +0000 | [diff] [blame] | 803 | /// \brief Parses binary expressions by inserting fake parenthesis based on |
| 804 | /// operator precedence. |
| 805 | class ExpressionParser { |
| 806 | public: |
Daniel Jasper | 9acb8b4 | 2013-06-06 09:11:58 +0000 | [diff] [blame] | 807 | ExpressionParser(AnnotatedLine &Line) : Current(Line.First) { |
| 808 | // Skip leading "}", e.g. in "} else if (...) {". |
| 809 | if (Current->is(tok::r_brace)) |
| 810 | next(); |
| 811 | } |
Daniel Jasper | 29f123b | 2013-02-08 15:28:42 +0000 | [diff] [blame] | 812 | |
| 813 | /// \brief Parse expressions with the given operatore precedence. |
Daniel Jasper | 237d4c1 | 2013-02-23 21:01:55 +0000 | [diff] [blame] | 814 | void parse(int Precedence = 0) { |
Daniel Jasper | c01897c | 2013-05-31 14:56:12 +0000 | [diff] [blame] | 815 | // Conditional expressions need to be parsed separately for proper nesting. |
| 816 | if (Precedence == prec::Conditional + 1) { |
| 817 | parseConditionalExpr(); |
| 818 | return; |
| 819 | } |
Daniel Jasper | 29f123b | 2013-02-08 15:28:42 +0000 | [diff] [blame] | 820 | if (Precedence > prec::PointerToMember || Current == NULL) |
| 821 | return; |
| 822 | |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 823 | FormatToken *Start = Current; |
Daniel Jasper | 29f123b | 2013-02-08 15:28:42 +0000 | [diff] [blame] | 824 | bool OperatorFound = false; |
| 825 | |
Daniel Jasper | 237d4c1 | 2013-02-23 21:01:55 +0000 | [diff] [blame] | 826 | while (Current) { |
Daniel Jasper | 29f123b | 2013-02-08 15:28:42 +0000 | [diff] [blame] | 827 | // Consume operators with higher precedence. |
Daniel Jasper | bf71ba2 | 2013-04-08 20:33:42 +0000 | [diff] [blame] | 828 | parse(Precedence + 1); |
Daniel Jasper | 29f123b | 2013-02-08 15:28:42 +0000 | [diff] [blame] | 829 | |
Daniel Jasper | 237d4c1 | 2013-02-23 21:01:55 +0000 | [diff] [blame] | 830 | int CurrentPrecedence = 0; |
| 831 | if (Current) { |
| 832 | if (Current->Type == TT_ConditionalExpr) |
Daniel Jasper | b8b4295 | 2013-05-31 16:14:28 +0000 | [diff] [blame] | 833 | CurrentPrecedence = 1 + (int)prec::Conditional; |
Daniel Jasper | bf71ba2 | 2013-04-08 20:33:42 +0000 | [diff] [blame] | 834 | else if (Current->is(tok::semi) || Current->Type == TT_InlineASMColon) |
Daniel Jasper | 237d4c1 | 2013-02-23 21:01:55 +0000 | [diff] [blame] | 835 | CurrentPrecedence = 1; |
| 836 | else if (Current->Type == TT_BinaryOperator || Current->is(tok::comma)) |
Daniel Jasper | b8b4295 | 2013-05-31 16:14:28 +0000 | [diff] [blame] | 837 | CurrentPrecedence = 1 + (int)Current->getPrecedence(); |
Daniel Jasper | 237d4c1 | 2013-02-23 21:01:55 +0000 | [diff] [blame] | 838 | } |
| 839 | |
Daniel Jasper | 29f123b | 2013-02-08 15:28:42 +0000 | [diff] [blame] | 840 | // At the end of the line or when an operator with higher precedence is |
| 841 | // found, insert fake parenthesis and return. |
Daniel Jasper | ac3223e | 2013-04-10 09:49:49 +0000 | [diff] [blame] | 842 | if (Current == NULL || Current->closesScope() || |
Daniel Jasper | 237d4c1 | 2013-02-23 21:01:55 +0000 | [diff] [blame] | 843 | (CurrentPrecedence != 0 && CurrentPrecedence < Precedence)) { |
Daniel Jasper | c01897c | 2013-05-31 14:56:12 +0000 | [diff] [blame] | 844 | if (OperatorFound) |
| 845 | addFakeParenthesis(Start, prec::Level(Precedence - 1)); |
Daniel Jasper | 29f123b | 2013-02-08 15:28:42 +0000 | [diff] [blame] | 846 | return; |
| 847 | } |
| 848 | |
| 849 | // Consume scopes: (), [], <> and {} |
Daniel Jasper | ac3223e | 2013-04-10 09:49:49 +0000 | [diff] [blame] | 850 | if (Current->opensScope()) { |
| 851 | while (Current && !Current->closesScope()) { |
Daniel Jasper | 29f123b | 2013-02-08 15:28:42 +0000 | [diff] [blame] | 852 | next(); |
| 853 | parse(); |
| 854 | } |
| 855 | next(); |
| 856 | } else { |
| 857 | // Operator found. |
Daniel Jasper | 237d4c1 | 2013-02-23 21:01:55 +0000 | [diff] [blame] | 858 | if (CurrentPrecedence == Precedence) |
Daniel Jasper | 29f123b | 2013-02-08 15:28:42 +0000 | [diff] [blame] | 859 | OperatorFound = true; |
| 860 | |
| 861 | next(); |
| 862 | } |
| 863 | } |
| 864 | } |
| 865 | |
| 866 | private: |
Daniel Jasper | c01897c | 2013-05-31 14:56:12 +0000 | [diff] [blame] | 867 | void addFakeParenthesis(FormatToken *Start, prec::Level Precedence) { |
| 868 | Start->FakeLParens.push_back(Precedence); |
| 869 | if (Current) |
| 870 | ++Current->Previous->FakeRParens; |
| 871 | } |
| 872 | |
| 873 | void parseConditionalExpr() { |
| 874 | FormatToken *Start = Current; |
| 875 | parse(prec::LogicalOr + 1); |
| 876 | if (!Current || !Current->is(tok::question)) |
| 877 | return; |
| 878 | next(); |
| 879 | parse(prec::LogicalOr + 1); |
| 880 | if (!Current || Current->Type != TT_ConditionalExpr) |
| 881 | return; |
| 882 | next(); |
| 883 | parseConditionalExpr(); |
| 884 | addFakeParenthesis(Start, prec::Conditional); |
| 885 | } |
| 886 | |
Daniel Jasper | 29f123b | 2013-02-08 15:28:42 +0000 | [diff] [blame] | 887 | void next() { |
Alexander Kornienko | d71b15b | 2013-06-17 13:19:53 +0000 | [diff] [blame] | 888 | if (Current) |
| 889 | Current = Current->Next; |
| 890 | while (Current && Current->isTrailingComment()) |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 891 | Current = Current->Next; |
Daniel Jasper | 29f123b | 2013-02-08 15:28:42 +0000 | [diff] [blame] | 892 | } |
| 893 | |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 894 | FormatToken *Current; |
Daniel Jasper | 29f123b | 2013-02-08 15:28:42 +0000 | [diff] [blame] | 895 | }; |
| 896 | |
Craig Topper | 14e6649 | 2013-07-01 04:03:19 +0000 | [diff] [blame] | 897 | } // end anonymous namespace |
| 898 | |
Daniel Jasper | 8ff690a | 2013-02-06 14:22:40 +0000 | [diff] [blame] | 899 | void TokenAnnotator::annotate(AnnotatedLine &Line) { |
Alexander Kornienko | 0089510 | 2013-06-05 14:09:10 +0000 | [diff] [blame] | 900 | AnnotatingParser Parser(Line, Ident_in); |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 901 | Line.Type = Parser.parseLine(); |
| 902 | if (Line.Type == LT_Invalid) |
| 903 | return; |
| 904 | |
Daniel Jasper | 29f123b | 2013-02-08 15:28:42 +0000 | [diff] [blame] | 905 | ExpressionParser ExprParser(Line); |
| 906 | ExprParser.parse(); |
| 907 | |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 908 | if (Line.First->Type == TT_ObjCMethodSpecifier) |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 909 | Line.Type = LT_ObjCMethodDecl; |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 910 | else if (Line.First->Type == TT_ObjCDecl) |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 911 | Line.Type = LT_ObjCDecl; |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 912 | else if (Line.First->Type == TT_ObjCProperty) |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 913 | Line.Type = LT_ObjCProperty; |
| 914 | |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 915 | Line.First->SpacesRequiredBefore = 1; |
| 916 | Line.First->CanBreakBefore = Line.First->MustBreakBefore; |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 917 | } |
| 918 | |
Daniel Jasper | 8ff690a | 2013-02-06 14:22:40 +0000 | [diff] [blame] | 919 | void TokenAnnotator::calculateFormattingInformation(AnnotatedLine &Line) { |
Alexander Kornienko | 0089510 | 2013-06-05 14:09:10 +0000 | [diff] [blame] | 920 | Line.First->TotalLength = Line.First->CodePointCount; |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 921 | if (!Line.First->Next) |
Daniel Jasper | 8ff690a | 2013-02-06 14:22:40 +0000 | [diff] [blame] | 922 | return; |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 923 | FormatToken *Current = Line.First->Next; |
Daniel Jasper | 8ff690a | 2013-02-06 14:22:40 +0000 | [diff] [blame] | 924 | while (Current != NULL) { |
Daniel Jasper | 729a743 | 2013-02-11 12:36:37 +0000 | [diff] [blame] | 925 | if (Current->Type == TT_LineComment) |
| 926 | Current->SpacesRequiredBefore = Style.SpacesBeforeTrailingComments; |
| 927 | else |
| 928 | Current->SpacesRequiredBefore = |
| 929 | spaceRequiredBefore(Line, *Current) ? 1 : 0; |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 930 | |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 931 | if (Current->MustBreakBefore) { |
Alexander Kornienko | e3f1197 | 2013-06-12 19:04:12 +0000 | [diff] [blame] | 932 | } else if (Current->is(tok::comment)) { |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 933 | Current->MustBreakBefore = Current->NewlinesBefore > 0; |
| 934 | } else if (Current->Previous->isTrailingComment() || |
Daniel Jasper | 8ff690a | 2013-02-06 14:22:40 +0000 | [diff] [blame] | 935 | (Current->is(tok::string_literal) && |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 936 | Current->Previous->is(tok::string_literal))) { |
Daniel Jasper | 8ff690a | 2013-02-06 14:22:40 +0000 | [diff] [blame] | 937 | Current->MustBreakBefore = true; |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 938 | } else if (Current->is(tok::lessless) && Current->Next && |
| 939 | Current->Previous->is(tok::string_literal) && |
| 940 | Current->Next->is(tok::string_literal)) { |
Daniel Jasper | 8ff690a | 2013-02-06 14:22:40 +0000 | [diff] [blame] | 941 | Current->MustBreakBefore = true; |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 942 | } else if (Current->Previous->ClosesTemplateDeclaration && |
Daniel Jasper | bbc8776 | 2013-05-29 12:07:31 +0000 | [diff] [blame] | 943 | Style.AlwaysBreakTemplateDeclarations) { |
| 944 | Current->MustBreakBefore = true; |
Alexander Kornienko | 5631202 | 2013-07-04 12:02:44 +0000 | [diff] [blame] | 945 | } else if (Style.AlwaysBreakBeforeMultilineStrings && |
| 946 | Current->is(tok::string_literal) && |
| 947 | Current->Previous->isNot(tok::lessless) && |
| 948 | Current->Previous->Type != TT_InlineASMColon && |
Alexander Kornienko | 0bdc643 | 2013-07-04 14:47:51 +0000 | [diff] [blame] | 949 | Current->getNextNonComment() && |
| 950 | Current->getNextNonComment()->is(tok::string_literal)) { |
Alexander Kornienko | 5631202 | 2013-07-04 12:02:44 +0000 | [diff] [blame] | 951 | Current->MustBreakBefore = true; |
Daniel Jasper | 8ff690a | 2013-02-06 14:22:40 +0000 | [diff] [blame] | 952 | } else { |
| 953 | Current->MustBreakBefore = false; |
| 954 | } |
| 955 | Current->CanBreakBefore = |
| 956 | Current->MustBreakBefore || canBreakBefore(Line, *Current); |
| 957 | if (Current->MustBreakBefore) |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 958 | Current->TotalLength = Current->Previous->TotalLength + Style.ColumnLimit; |
Daniel Jasper | 8ff690a | 2013-02-06 14:22:40 +0000 | [diff] [blame] | 959 | else |
Daniel Jasper | 2a409b6 | 2013-07-08 14:34:09 +0000 | [diff] [blame] | 960 | Current->TotalLength = Current->Previous->TotalLength + |
| 961 | Current->CodePointCount + |
| 962 | Current->SpacesRequiredBefore; |
Daniel Jasper | 8ff690a | 2013-02-06 14:22:40 +0000 | [diff] [blame] | 963 | // FIXME: Only calculate this if CanBreakBefore is true once static |
| 964 | // initializers etc. are sorted out. |
| 965 | // FIXME: Move magic numbers to a better place. |
| 966 | Current->SplitPenalty = |
| 967 | 20 * Current->BindingStrength + splitPenalty(Line, *Current); |
| 968 | |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 969 | Current = Current->Next; |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 970 | } |
Daniel Jasper | bf71ba2 | 2013-04-08 20:33:42 +0000 | [diff] [blame] | 971 | |
Manuel Klimek | e573c3f | 2013-05-22 12:51:29 +0000 | [diff] [blame] | 972 | calculateUnbreakableTailLengths(Line); |
Daniel Jasper | bf71ba2 | 2013-04-08 20:33:42 +0000 | [diff] [blame] | 973 | DEBUG({ |
| 974 | printDebugInfo(Line); |
| 975 | }); |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 976 | } |
| 977 | |
Manuel Klimek | e573c3f | 2013-05-22 12:51:29 +0000 | [diff] [blame] | 978 | void TokenAnnotator::calculateUnbreakableTailLengths(AnnotatedLine &Line) { |
| 979 | unsigned UnbreakableTailLength = 0; |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 980 | FormatToken *Current = Line.Last; |
Manuel Klimek | e573c3f | 2013-05-22 12:51:29 +0000 | [diff] [blame] | 981 | while (Current != NULL) { |
| 982 | Current->UnbreakableTailLength = UnbreakableTailLength; |
| 983 | if (Current->CanBreakBefore || |
| 984 | Current->isOneOf(tok::comment, tok::string_literal)) { |
| 985 | UnbreakableTailLength = 0; |
| 986 | } else { |
| 987 | UnbreakableTailLength += |
Alexander Kornienko | 0089510 | 2013-06-05 14:09:10 +0000 | [diff] [blame] | 988 | Current->CodePointCount + Current->SpacesRequiredBefore; |
Manuel Klimek | e573c3f | 2013-05-22 12:51:29 +0000 | [diff] [blame] | 989 | } |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 990 | Current = Current->Previous; |
Manuel Klimek | e573c3f | 2013-05-22 12:51:29 +0000 | [diff] [blame] | 991 | } |
| 992 | } |
| 993 | |
Daniel Jasper | 8ff690a | 2013-02-06 14:22:40 +0000 | [diff] [blame] | 994 | unsigned TokenAnnotator::splitPenalty(const AnnotatedLine &Line, |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 995 | const FormatToken &Tok) { |
| 996 | const FormatToken &Left = *Tok.Previous; |
| 997 | const FormatToken &Right = Tok; |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 998 | |
Daniel Jasper | 5ad390d | 2013-05-28 11:30:49 +0000 | [diff] [blame] | 999 | if (Left.is(tok::semi)) |
| 1000 | return 0; |
| 1001 | if (Left.is(tok::comma)) |
| 1002 | return 1; |
| 1003 | |
Daniel Jasper | 6561f6a | 2013-07-09 07:43:55 +0000 | [diff] [blame] | 1004 | if (Right.Type == TT_StartOfName || Right.is(tok::kw_operator)) { |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 1005 | if (Line.First->is(tok::kw_for) && Right.PartOfMultiVariableDeclStmt) |
Daniel Jasper | 3c08a81 | 2013-02-24 18:54:32 +0000 | [diff] [blame] | 1006 | return 3; |
| 1007 | else if (Line.MightBeFunctionDecl && Right.BindingStrength == 1) |
| 1008 | // FIXME: Clean up hack of using BindingStrength to find top-level names. |
| 1009 | return Style.PenaltyReturnTypeOnItsOwnLine; |
| 1010 | else |
Daniel Jasper | 1407bee | 2013-04-11 14:29:13 +0000 | [diff] [blame] | 1011 | return 200; |
Daniel Jasper | 3c08a81 | 2013-02-24 18:54:32 +0000 | [diff] [blame] | 1012 | } |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1013 | if (Left.is(tok::equal) && Right.is(tok::l_brace)) |
| 1014 | return 150; |
Daniel Jasper | 198c8bf | 2013-07-05 07:58:34 +0000 | [diff] [blame] | 1015 | if (Left.Type == TT_CastRParen) |
| 1016 | return 100; |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1017 | if (Left.is(tok::coloncolon)) |
| 1018 | return 500; |
Daniel Jasper | 6b119d6 | 2013-04-05 17:22:09 +0000 | [diff] [blame] | 1019 | if (Left.isOneOf(tok::kw_class, tok::kw_struct)) |
| 1020 | return 5000; |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1021 | |
Daniel Jasper | 6cabab4 | 2013-02-14 08:42:54 +0000 | [diff] [blame] | 1022 | if (Left.Type == TT_RangeBasedForLoopColon || |
| 1023 | Left.Type == TT_InheritanceColon) |
Daniel Jasper | 84a1a63 | 2013-02-26 13:18:08 +0000 | [diff] [blame] | 1024 | return 2; |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1025 | |
Daniel Jasper | 5ad390d | 2013-05-28 11:30:49 +0000 | [diff] [blame] | 1026 | if (Right.isOneOf(tok::arrow, tok::period) && |
| 1027 | Right.Type != TT_DesignatedInitializerPeriod) { |
Daniel Jasper | 515f65d | 2013-02-18 13:24:21 +0000 | [diff] [blame] | 1028 | if (Line.Type == LT_BuilderTypeCall) |
Daniel Jasper | 6a365aa | 2013-03-13 17:13:53 +0000 | [diff] [blame] | 1029 | return prec::PointerToMember; |
Alexander Kornienko | e74de28 | 2013-03-13 14:41:29 +0000 | [diff] [blame] | 1030 | if (Left.isOneOf(tok::r_paren, tok::r_square) && Left.MatchingParen && |
| 1031 | Left.MatchingParen->ParameterCount > 0) |
Daniel Jasper | 518ee34 | 2013-02-26 13:59:14 +0000 | [diff] [blame] | 1032 | return 20; // Should be smaller than breaking at a nested comma. |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1033 | return 150; |
| 1034 | } |
| 1035 | |
Daniel Jasper | 5ad72bb | 2013-05-22 08:28:26 +0000 | [diff] [blame] | 1036 | // Breaking before a trailing 'const' is bad. |
| 1037 | if (Left.is(tok::r_paren) && Right.is(tok::kw_const)) |
| 1038 | return 150; |
| 1039 | |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1040 | // In for-loops, prefer breaking at ',' and ';'. |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 1041 | if (Line.First->is(tok::kw_for) && Left.is(tok::equal)) |
Daniel Jasper | 7d81281 | 2013-02-21 15:00:29 +0000 | [diff] [blame] | 1042 | return 4; |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1043 | |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1044 | // In Objective-C method expressions, prefer breaking before "param:" over |
| 1045 | // breaking after it. |
Daniel Jasper | 63d7ced | 2013-02-05 10:07:47 +0000 | [diff] [blame] | 1046 | if (Right.Type == TT_ObjCSelectorName) |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1047 | return 0; |
Daniel Jasper | 63d7ced | 2013-02-05 10:07:47 +0000 | [diff] [blame] | 1048 | if (Left.is(tok::colon) && Left.Type == TT_ObjCMethodExpr) |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1049 | return 20; |
| 1050 | |
Daniel Jasper | 1407bee | 2013-04-11 14:29:13 +0000 | [diff] [blame] | 1051 | if (Left.is(tok::l_paren) && Line.MightBeFunctionDecl) |
| 1052 | return 100; |
Daniel Jasper | ac3223e | 2013-04-10 09:49:49 +0000 | [diff] [blame] | 1053 | if (Left.opensScope()) |
Daniel Jasper | 64f0928 | 2013-03-20 13:53:11 +0000 | [diff] [blame] | 1054 | return Left.ParameterCount > 1 ? prec::Comma : 20; |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1055 | |
Daniel Jasper | 4e8a7b4 | 2013-02-06 21:04:05 +0000 | [diff] [blame] | 1056 | if (Right.is(tok::lessless)) { |
| 1057 | if (Left.is(tok::string_literal)) { |
Alexander Kornienko | 0089510 | 2013-06-05 14:09:10 +0000 | [diff] [blame] | 1058 | StringRef Content = Left.TokenText; |
Daniel Jasper | bfa1edd | 2013-03-14 14:00:17 +0000 | [diff] [blame] | 1059 | Content = Content.drop_back(1).drop_front(1).trim(); |
| 1060 | if (Content.size() > 1 && |
| 1061 | (Content.back() == ':' || Content.back() == '=')) |
Daniel Jasper | 6e6efa7 | 2013-05-22 09:13:26 +0000 | [diff] [blame] | 1062 | return 20; |
Daniel Jasper | 4e8a7b4 | 2013-02-06 21:04:05 +0000 | [diff] [blame] | 1063 | } |
Daniel Jasper | 0178673 | 2013-02-04 07:21:18 +0000 | [diff] [blame] | 1064 | return prec::Shift; |
Daniel Jasper | 4e8a7b4 | 2013-02-06 21:04:05 +0000 | [diff] [blame] | 1065 | } |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1066 | if (Left.Type == TT_ConditionalExpr) |
Daniel Jasper | 518ee34 | 2013-02-26 13:59:14 +0000 | [diff] [blame] | 1067 | return prec::Conditional; |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 1068 | prec::Level Level = Left.getPrecedence(); |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1069 | |
| 1070 | if (Level != prec::Unknown) |
| 1071 | return Level; |
Daniel Jasper | 2484971 | 2013-03-01 16:48:32 +0000 | [diff] [blame] | 1072 | |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1073 | return 3; |
| 1074 | } |
| 1075 | |
Daniel Jasper | 8ff690a | 2013-02-06 14:22:40 +0000 | [diff] [blame] | 1076 | bool TokenAnnotator::spaceRequiredBetween(const AnnotatedLine &Line, |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 1077 | const FormatToken &Left, |
| 1078 | const FormatToken &Right) { |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1079 | if (Right.is(tok::hashhash)) |
| 1080 | return Left.is(tok::hash); |
Alexander Kornienko | e74de28 | 2013-03-13 14:41:29 +0000 | [diff] [blame] | 1081 | if (Left.isOneOf(tok::hashhash, tok::hash)) |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1082 | return Right.is(tok::hash); |
Alexander Kornienko | e74de28 | 2013-03-13 14:41:29 +0000 | [diff] [blame] | 1083 | if (Right.isOneOf(tok::r_paren, tok::semi, tok::comma)) |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1084 | return false; |
| 1085 | if (Right.is(tok::less) && |
| 1086 | (Left.is(tok::kw_template) || |
| 1087 | (Line.Type == LT_ObjCDecl && Style.ObjCSpaceBeforeProtocolList))) |
| 1088 | return true; |
| 1089 | if (Left.is(tok::arrow) || Right.is(tok::arrow)) |
| 1090 | return false; |
Alexander Kornienko | e74de28 | 2013-03-13 14:41:29 +0000 | [diff] [blame] | 1091 | if (Left.isOneOf(tok::exclaim, tok::tilde)) |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1092 | return false; |
| 1093 | if (Left.is(tok::at) && |
Alexander Kornienko | e74de28 | 2013-03-13 14:41:29 +0000 | [diff] [blame] | 1094 | Right.isOneOf(tok::identifier, tok::string_literal, tok::char_constant, |
| 1095 | tok::numeric_constant, tok::l_paren, tok::l_brace, |
| 1096 | tok::kw_true, tok::kw_false)) |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1097 | return false; |
| 1098 | if (Left.is(tok::coloncolon)) |
| 1099 | return false; |
| 1100 | if (Right.is(tok::coloncolon)) |
Alexander Kornienko | e74de28 | 2013-03-13 14:41:29 +0000 | [diff] [blame] | 1101 | return !Left.isOneOf(tok::identifier, tok::greater, tok::l_paren); |
| 1102 | if (Left.is(tok::less) || Right.isOneOf(tok::greater, tok::less)) |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1103 | return false; |
Daniel Jasper | c47d7f1 | 2013-07-01 09:47:25 +0000 | [diff] [blame] | 1104 | if (Right.is(tok::ellipsis)) |
| 1105 | return false; |
Alexander Kornienko | 3fd9ccd | 2013-03-12 16:28:18 +0000 | [diff] [blame] | 1106 | if (Right.Type == TT_PointerOrReference) |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 1107 | return Left.Tok.isLiteral() || |
Alexander Kornienko | 3fd9ccd | 2013-03-12 16:28:18 +0000 | [diff] [blame] | 1108 | ((Left.Type != TT_PointerOrReference) && Left.isNot(tok::l_paren) && |
| 1109 | !Style.PointerBindsToType); |
Daniel Jasper | 3ff4a2f | 2013-05-28 15:27:10 +0000 | [diff] [blame] | 1110 | if (Right.Type == TT_FunctionTypeLParen && Left.isNot(tok::l_paren) && |
Daniel Jasper | 395228f | 2013-05-08 14:58:20 +0000 | [diff] [blame] | 1111 | (Left.Type != TT_PointerOrReference || Style.PointerBindsToType)) |
| 1112 | return true; |
Alexander Kornienko | 3fd9ccd | 2013-03-12 16:28:18 +0000 | [diff] [blame] | 1113 | if (Left.Type == TT_PointerOrReference) |
Daniel Jasper | 3a1847e | 2013-07-01 09:34:09 +0000 | [diff] [blame] | 1114 | return Right.Tok.isLiteral() || Right.Type == TT_BlockComment || |
Daniel Jasper | 9322aae | 2013-03-20 09:53:18 +0000 | [diff] [blame] | 1115 | ((Right.Type != TT_PointerOrReference) && |
Daniel Jasper | 81d2d38 | 2013-04-01 17:13:26 +0000 | [diff] [blame] | 1116 | Right.isNot(tok::l_paren) && Style.PointerBindsToType && |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 1117 | Left.Previous && |
| 1118 | !Left.Previous->isOneOf(tok::l_paren, tok::coloncolon)); |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1119 | if (Right.is(tok::star) && Left.is(tok::l_paren)) |
| 1120 | return false; |
Nico Weber | 051860e | 2013-02-10 02:08:05 +0000 | [diff] [blame] | 1121 | if (Left.is(tok::l_square)) |
| 1122 | return Left.Type == TT_ObjCArrayLiteral && Right.isNot(tok::r_square); |
| 1123 | if (Right.is(tok::r_square)) |
| 1124 | return Right.Type == TT_ObjCArrayLiteral; |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1125 | if (Right.is(tok::l_square) && Right.Type != TT_ObjCMethodExpr) |
| 1126 | return false; |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1127 | if (Left.is(tok::colon)) |
| 1128 | return Left.Type != TT_ObjCMethodExpr; |
| 1129 | if (Right.is(tok::colon)) |
| 1130 | return Right.Type != TT_ObjCMethodExpr; |
| 1131 | if (Left.is(tok::l_paren)) |
| 1132 | return false; |
| 1133 | if (Right.is(tok::l_paren)) { |
Alexander Kornienko | e74de28 | 2013-03-13 14:41:29 +0000 | [diff] [blame] | 1134 | return Line.Type == LT_ObjCDecl || |
| 1135 | Left.isOneOf(tok::kw_if, tok::kw_for, tok::kw_while, tok::kw_switch, |
| 1136 | tok::kw_return, tok::kw_catch, tok::kw_new, |
Daniel Jasper | 454cb70 | 2013-05-03 14:50:50 +0000 | [diff] [blame] | 1137 | tok::kw_delete, tok::semi); |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1138 | } |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 1139 | if (Left.is(tok::at) && Right.Tok.getObjCKeywordID() != tok::objc_not_keyword) |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1140 | return false; |
| 1141 | if (Left.is(tok::l_brace) && Right.is(tok::r_brace)) |
Daniel Jasper | 2424eef | 2013-05-23 10:15:45 +0000 | [diff] [blame] | 1142 | return false; // No spaces in "{}". |
| 1143 | if (Left.is(tok::l_brace) || Right.is(tok::r_brace)) |
| 1144 | return Style.SpacesInBracedLists; |
Daniel Jasper | 1bee073 | 2013-05-23 18:05:18 +0000 | [diff] [blame] | 1145 | if (Right.Type == TT_UnaryOperator) |
| 1146 | return !Left.isOneOf(tok::l_paren, tok::l_square, tok::at) && |
| 1147 | (Left.isNot(tok::colon) || Left.Type != TT_ObjCMethodExpr); |
Daniel Jasper | ce93356 | 2013-05-23 21:35:49 +0000 | [diff] [blame] | 1148 | if (Left.isOneOf(tok::identifier, tok::greater, tok::r_square) && |
Alexander Kornienko | 0bdc643 | 2013-07-04 14:47:51 +0000 | [diff] [blame] | 1149 | Right.is(tok::l_brace) && Right.getNextNonComment()) |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1150 | return false; |
Daniel Jasper | 5ad390d | 2013-05-28 11:30:49 +0000 | [diff] [blame] | 1151 | if (Left.is(tok::period) || Right.is(tok::period)) |
| 1152 | return false; |
Nico Weber | 861576b | 2013-06-26 00:15:19 +0000 | [diff] [blame] | 1153 | if (Left.Type == TT_BlockComment && Left.TokenText.endswith("=*/")) |
| 1154 | return false; |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1155 | return true; |
| 1156 | } |
| 1157 | |
Daniel Jasper | 8ff690a | 2013-02-06 14:22:40 +0000 | [diff] [blame] | 1158 | bool TokenAnnotator::spaceRequiredBefore(const AnnotatedLine &Line, |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 1159 | const FormatToken &Tok) { |
| 1160 | if (Tok.Tok.getIdentifierInfo() && Tok.Previous->Tok.getIdentifierInfo()) |
Daniel Jasper | 2b4c924 | 2013-02-11 08:01:18 +0000 | [diff] [blame] | 1161 | return true; // Never ever merge two identifiers. |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1162 | if (Line.Type == LT_ObjCMethodDecl) { |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 1163 | if (Tok.Previous->Type == TT_ObjCMethodSpecifier) |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1164 | return true; |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 1165 | if (Tok.Previous->is(tok::r_paren) && Tok.is(tok::identifier)) |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1166 | // Don't space between ')' and <id> |
| 1167 | return false; |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1168 | } |
| 1169 | if (Line.Type == LT_ObjCProperty && |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 1170 | (Tok.is(tok::equal) || Tok.Previous->is(tok::equal))) |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1171 | return false; |
| 1172 | |
Daniel Jasper | 2ca3741 | 2013-07-09 14:36:48 +0000 | [diff] [blame] | 1173 | if (Tok.Type == TT_TrailingReturnArrow || |
| 1174 | Tok.Previous->Type == TT_TrailingReturnArrow) |
| 1175 | return true; |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 1176 | if (Tok.Previous->is(tok::comma)) |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1177 | return true; |
Daniel Jasper | 9c3c7b3 | 2013-02-28 13:40:17 +0000 | [diff] [blame] | 1178 | if (Tok.is(tok::comma)) |
| 1179 | return false; |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1180 | if (Tok.Type == TT_CtorInitializerColon || Tok.Type == TT_ObjCBlockLParen) |
| 1181 | return true; |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 1182 | if (Tok.Previous->Tok.is(tok::kw_operator)) |
Daniel Jasper | 2b4c924 | 2013-02-11 08:01:18 +0000 | [diff] [blame] | 1183 | return false; |
| 1184 | if (Tok.Type == TT_OverloadedOperatorLParen) |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1185 | return false; |
| 1186 | if (Tok.is(tok::colon)) |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 1187 | return !Line.First->isOneOf(tok::kw_case, tok::kw_default) && |
Alexander Kornienko | 0bdc643 | 2013-07-04 14:47:51 +0000 | [diff] [blame] | 1188 | Tok.getNextNonComment() != NULL && Tok.Type != TT_ObjCMethodExpr; |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 1189 | if (Tok.Previous->Type == TT_UnaryOperator || |
| 1190 | Tok.Previous->Type == TT_CastRParen) |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1191 | return false; |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 1192 | if (Tok.Previous->is(tok::greater) && Tok.is(tok::greater)) { |
Daniel Jasper | 29f123b | 2013-02-08 15:28:42 +0000 | [diff] [blame] | 1193 | return Tok.Type == TT_TemplateCloser && |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 1194 | Tok.Previous->Type == TT_TemplateCloser && |
Daniel Jasper | 29f123b | 2013-02-08 15:28:42 +0000 | [diff] [blame] | 1195 | Style.Standard != FormatStyle::LS_Cpp11; |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1196 | } |
Alexander Kornienko | 54a38bd | 2013-03-20 16:41:56 +0000 | [diff] [blame] | 1197 | if (Tok.isOneOf(tok::arrowstar, tok::periodstar) || |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 1198 | Tok.Previous->isOneOf(tok::arrowstar, tok::periodstar)) |
Daniel Jasper | 9c3c7b3 | 2013-02-28 13:40:17 +0000 | [diff] [blame] | 1199 | return false; |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 1200 | if (Tok.Type == TT_BinaryOperator || Tok.Previous->Type == TT_BinaryOperator) |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1201 | return true; |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 1202 | if (Tok.Previous->Type == TT_TemplateCloser && Tok.is(tok::l_paren)) |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1203 | return false; |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 1204 | if (Tok.is(tok::less) && Line.First->is(tok::hash)) |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1205 | return true; |
| 1206 | if (Tok.Type == TT_TrailingUnaryOperator) |
| 1207 | return false; |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 1208 | return spaceRequiredBetween(Line, *Tok.Previous, Tok); |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1209 | } |
| 1210 | |
Daniel Jasper | 8ff690a | 2013-02-06 14:22:40 +0000 | [diff] [blame] | 1211 | bool TokenAnnotator::canBreakBefore(const AnnotatedLine &Line, |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 1212 | const FormatToken &Right) { |
| 1213 | const FormatToken &Left = *Right.Previous; |
Daniel Jasper | 6561f6a | 2013-07-09 07:43:55 +0000 | [diff] [blame] | 1214 | if (Right.Type == TT_StartOfName || Right.is(tok::kw_operator)) |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1215 | return true; |
Nico Weber | f2ff812 | 2013-05-26 05:39:26 +0000 | [diff] [blame] | 1216 | if (Right.is(tok::colon) && |
| 1217 | (Right.Type == TT_ObjCDictLiteral || Right.Type == TT_ObjCMethodExpr)) |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1218 | return false; |
Nico Weber | f2ff812 | 2013-05-26 05:39:26 +0000 | [diff] [blame] | 1219 | if (Left.is(tok::colon) && |
| 1220 | (Left.Type == TT_ObjCDictLiteral || Left.Type == TT_ObjCMethodExpr)) |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1221 | return true; |
Daniel Jasper | 63d7ced | 2013-02-05 10:07:47 +0000 | [diff] [blame] | 1222 | if (Right.Type == TT_ObjCSelectorName) |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1223 | return true; |
| 1224 | if (Left.ClosesTemplateDeclaration) |
| 1225 | return true; |
| 1226 | if (Right.Type == TT_ConditionalExpr || Right.is(tok::question)) |
| 1227 | return true; |
Daniel Jasper | 6cabab4 | 2013-02-14 08:42:54 +0000 | [diff] [blame] | 1228 | if (Right.Type == TT_RangeBasedForLoopColon || |
Daniel Jasper | 27b91cc | 2013-04-05 17:21:59 +0000 | [diff] [blame] | 1229 | Right.Type == TT_OverloadedOperatorLParen) |
Daniel Jasper | 6cabab4 | 2013-02-14 08:42:54 +0000 | [diff] [blame] | 1230 | return false; |
Daniel Jasper | c194c95 | 2013-05-06 06:45:09 +0000 | [diff] [blame] | 1231 | if (Left.Type == TT_RangeBasedForLoopColon) |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1232 | return true; |
Daniel Jasper | 7d81281 | 2013-02-21 15:00:29 +0000 | [diff] [blame] | 1233 | if (Right.Type == TT_RangeBasedForLoopColon) |
| 1234 | return false; |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1235 | if (Left.Type == TT_PointerOrReference || Left.Type == TT_TemplateCloser || |
| 1236 | Left.Type == TT_UnaryOperator || Left.Type == TT_ConditionalExpr || |
Alexander Kornienko | e74de28 | 2013-03-13 14:41:29 +0000 | [diff] [blame] | 1237 | Left.isOneOf(tok::question, tok::kw_operator)) |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1238 | return false; |
| 1239 | if (Left.is(tok::equal) && Line.Type == LT_VirtualFunctionDecl) |
| 1240 | return false; |
Daniel Jasper | 198c8bf | 2013-07-05 07:58:34 +0000 | [diff] [blame] | 1241 | if (Left.Previous) { |
| 1242 | if (Left.is(tok::l_paren) && Right.is(tok::l_paren) && |
| 1243 | Left.Previous->is(tok::kw___attribute)) |
| 1244 | return false; |
Daniel Jasper | 2ca3741 | 2013-07-09 14:36:48 +0000 | [diff] [blame] | 1245 | if (Left.is(tok::l_paren) && (Left.Previous->Type == TT_BinaryOperator || |
| 1246 | Left.Previous->is(tok::r_paren))) |
Daniel Jasper | 198c8bf | 2013-07-05 07:58:34 +0000 | [diff] [blame] | 1247 | return false; |
| 1248 | } |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1249 | |
Daniel Jasper | 65d2c38 | 2013-06-06 16:08:57 +0000 | [diff] [blame] | 1250 | if (Right.isTrailingComment()) |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1251 | // We rely on MustBreakBefore being set correctly here as we should not |
| 1252 | // change the "binding" behavior of a comment. |
| 1253 | return false; |
| 1254 | |
Daniel Jasper | 5ad72bb | 2013-05-22 08:28:26 +0000 | [diff] [blame] | 1255 | // We only break before r_brace if there was a corresponding break before |
| 1256 | // the l_brace, which is tracked by BreakBeforeClosingBrace. |
| 1257 | if (Right.isOneOf(tok::r_brace, tok::r_paren, tok::greater)) |
| 1258 | return false; |
| 1259 | |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1260 | // Allow breaking after a trailing 'const', e.g. after a method declaration, |
| 1261 | // unless it is follow by ';', '{' or '='. |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 1262 | if (Left.is(tok::kw_const) && Left.Previous != NULL && |
| 1263 | Left.Previous->is(tok::r_paren)) |
Alexander Kornienko | e74de28 | 2013-03-13 14:41:29 +0000 | [diff] [blame] | 1264 | return !Right.isOneOf(tok::l_brace, tok::semi, tok::equal); |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1265 | |
Daniel Jasper | 8ef19a2 | 2013-03-14 09:50:46 +0000 | [diff] [blame] | 1266 | if (Right.is(tok::kw___attribute)) |
| 1267 | return true; |
| 1268 | |
Daniel Jasper | 3a20441 | 2013-02-23 07:46:38 +0000 | [diff] [blame] | 1269 | if (Left.is(tok::identifier) && Right.is(tok::string_literal)) |
| 1270 | return true; |
Daniel Jasper | ac3223e | 2013-04-10 09:49:49 +0000 | [diff] [blame] | 1271 | return (Left.isBinaryOperator() && Left.isNot(tok::lessless)) || |
Daniel Jasper | 6b119d6 | 2013-04-05 17:22:09 +0000 | [diff] [blame] | 1272 | Left.isOneOf(tok::comma, tok::coloncolon, tok::semi, tok::l_brace, |
| 1273 | tok::kw_class, tok::kw_struct) || |
Alexander Kornienko | e74de28 | 2013-03-13 14:41:29 +0000 | [diff] [blame] | 1274 | Right.isOneOf(tok::lessless, tok::arrow, tok::period, tok::colon) || |
Daniel Jasper | 198c8bf | 2013-07-05 07:58:34 +0000 | [diff] [blame] | 1275 | (Left.is(tok::r_paren) && |
Daniel Jasper | e033e87 | 2013-05-21 09:16:31 +0000 | [diff] [blame] | 1276 | Right.isOneOf(tok::identifier, tok::kw_const, tok::kw___attribute)) || |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1277 | (Left.is(tok::l_paren) && !Right.is(tok::r_paren)) || |
| 1278 | (Left.is(tok::l_square) && !Right.is(tok::r_square)); |
| 1279 | } |
| 1280 | |
Daniel Jasper | bf71ba2 | 2013-04-08 20:33:42 +0000 | [diff] [blame] | 1281 | void TokenAnnotator::printDebugInfo(const AnnotatedLine &Line) { |
| 1282 | llvm::errs() << "AnnotatedTokens:\n"; |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 1283 | const FormatToken *Tok = Line.First; |
Daniel Jasper | bf71ba2 | 2013-04-08 20:33:42 +0000 | [diff] [blame] | 1284 | while (Tok) { |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 1285 | llvm::errs() << " M=" << Tok->MustBreakBefore |
| 1286 | << " C=" << Tok->CanBreakBefore << " T=" << Tok->Type << " S=" |
| 1287 | << Tok->SpacesRequiredBefore << " P=" << Tok->SplitPenalty |
| 1288 | << " Name=" << Tok->Tok.getName() << " FakeLParens="; |
Daniel Jasper | bf71ba2 | 2013-04-08 20:33:42 +0000 | [diff] [blame] | 1289 | for (unsigned i = 0, e = Tok->FakeLParens.size(); i != e; ++i) |
| 1290 | llvm::errs() << Tok->FakeLParens[i] << "/"; |
| 1291 | llvm::errs() << " FakeRParens=" << Tok->FakeRParens << "\n"; |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 1292 | Tok = Tok->Next; |
Daniel Jasper | bf71ba2 | 2013-04-08 20:33:42 +0000 | [diff] [blame] | 1293 | } |
| 1294 | llvm::errs() << "----\n"; |
| 1295 | } |
| 1296 | |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1297 | } // namespace format |
| 1298 | } // namespace clang |