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: |
Daniel Jasper | d4a03db | 2013-08-22 15:00:41 +0000 | [diff] [blame] | 32 | AnnotatingParser(const FormatStyle &Style, AnnotatedLine &Line, |
| 33 | IdentifierInfo &Ident_in) |
| 34 | : Style(Style), Line(Line), CurrentToken(Line.First), |
| 35 | KeywordVirtualFound(false), NameFound(false), AutoFound(false), |
| 36 | Ident_in(Ident_in) { |
Nico Weber | 2726877 | 2013-06-26 00:30:14 +0000 | [diff] [blame] | 37 | Contexts.push_back(Context(tok::unknown, 1, /*IsExpression=*/false)); |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 38 | } |
| 39 | |
Nico Weber | 95e8e46 | 2013-02-12 16:17:07 +0000 | [diff] [blame] | 40 | private: |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 41 | bool parseAngle() { |
| 42 | if (CurrentToken == NULL) |
| 43 | return false; |
Daniel Jasper | 923ebef | 2013-03-14 13:45:21 +0000 | [diff] [blame] | 44 | ScopedContextCreator ContextCreator(*this, tok::less, 10); |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 45 | FormatToken *Left = CurrentToken->Previous; |
Daniel Jasper | 4e77809 | 2013-02-06 10:05:46 +0000 | [diff] [blame] | 46 | Contexts.back().IsExpression = false; |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 47 | while (CurrentToken != NULL) { |
| 48 | if (CurrentToken->is(tok::greater)) { |
| 49 | Left->MatchingParen = CurrentToken; |
| 50 | CurrentToken->MatchingParen = Left; |
| 51 | CurrentToken->Type = TT_TemplateCloser; |
| 52 | next(); |
| 53 | return true; |
| 54 | } |
Alexander Kornienko | e74de28 | 2013-03-13 14:41:29 +0000 | [diff] [blame] | 55 | if (CurrentToken->isOneOf(tok::r_paren, tok::r_square, tok::r_brace, |
Daniel Jasper | 5d823e3 | 2013-05-15 13:46:48 +0000 | [diff] [blame] | 56 | tok::question, tok::colon)) |
| 57 | return false; |
Daniel Jasper | 0348be0 | 2013-06-01 18:56:00 +0000 | [diff] [blame] | 58 | // 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] | 59 | // 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] | 60 | // angles are inside an expression, the ||/&& might also be a binary |
| 61 | // operator that was misinterpreted because we are parsing template |
| 62 | // parameters. |
| 63 | // FIXME: This is getting out of hand, write a decent parser. |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 64 | if (CurrentToken->Previous->isOneOf(tok::pipepipe, tok::ampamp) && |
Daniel Jasper | 0348be0 | 2013-06-01 18:56:00 +0000 | [diff] [blame] | 65 | (CurrentToken->Previous->Type == TT_BinaryOperator || |
| 66 | Contexts[Contexts.size() - 2].IsExpression) && |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 67 | Line.First->isNot(tok::kw_template)) |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 68 | return false; |
Daniel Jasper | 9fc56f2 | 2013-02-14 15:01:34 +0000 | [diff] [blame] | 69 | updateParameterCount(Left, CurrentToken); |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 70 | if (!consumeToken()) |
| 71 | return false; |
| 72 | } |
| 73 | return false; |
| 74 | } |
| 75 | |
| 76 | bool parseParens(bool LookForDecls = false) { |
| 77 | if (CurrentToken == NULL) |
| 78 | return false; |
Daniel Jasper | 923ebef | 2013-03-14 13:45:21 +0000 | [diff] [blame] | 79 | ScopedContextCreator ContextCreator(*this, tok::l_paren, 1); |
Daniel Jasper | 4e77809 | 2013-02-06 10:05:46 +0000 | [diff] [blame] | 80 | |
| 81 | // FIXME: This is a bit of a hack. Do better. |
| 82 | Contexts.back().ColonIsForRangeExpr = |
| 83 | Contexts.size() == 2 && Contexts[0].ColonIsForRangeExpr; |
| 84 | |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 85 | bool StartsObjCMethodExpr = false; |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 86 | FormatToken *Left = CurrentToken->Previous; |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 87 | if (CurrentToken->is(tok::caret)) { |
| 88 | // ^( starts a block. |
| 89 | Left->Type = TT_ObjCBlockLParen; |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 90 | } else if (FormatToken *MaybeSel = Left->Previous) { |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 91 | // @selector( starts a selector. |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 92 | if (MaybeSel->isObjCAtKeyword(tok::objc_selector) && MaybeSel->Previous && |
| 93 | MaybeSel->Previous->is(tok::at)) { |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 94 | StartsObjCMethodExpr = true; |
| 95 | } |
| 96 | } |
| 97 | |
Daniel Jasper | b644dd6 | 2013-08-13 09:09:09 +0000 | [diff] [blame] | 98 | if (Left->Previous && Left->Previous->isOneOf(tok::kw_static_assert, |
Daniel Jasper | 363193b | 2013-10-20 18:15:30 +0000 | [diff] [blame] | 99 | tok::kw_if, tok::kw_while)) { |
| 100 | // static_assert, if and while usually contain expressions. |
Daniel Jasper | b7000ca | 2013-08-01 17:58:23 +0000 | [diff] [blame] | 101 | Contexts.back().IsExpression = true; |
Daniel Jasper | 363193b | 2013-10-20 18:15:30 +0000 | [diff] [blame] | 102 | } else if (Left->Previous && Left->Previous->is(tok::r_square) && |
| 103 | Left->Previous->MatchingParen && |
| 104 | Left->Previous->MatchingParen->Type == TT_LambdaLSquare) { |
| 105 | // This is a parameter list of a lambda expression. |
| 106 | Contexts.back().IsExpression = false; |
| 107 | } |
Daniel Jasper | b7000ca | 2013-08-01 17:58:23 +0000 | [diff] [blame] | 108 | |
Daniel Jasper | 4e77809 | 2013-02-06 10:05:46 +0000 | [diff] [blame] | 109 | if (StartsObjCMethodExpr) { |
| 110 | Contexts.back().ColonIsObjCMethodExpr = true; |
| 111 | Left->Type = TT_ObjCMethodExpr; |
| 112 | } |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 113 | |
Daniel Jasper | 431f591 | 2013-05-28 08:33:00 +0000 | [diff] [blame] | 114 | bool MightBeFunctionType = CurrentToken->is(tok::star); |
Daniel Jasper | c7bd68f | 2013-07-10 14:02:49 +0000 | [diff] [blame] | 115 | bool HasMultipleLines = false; |
| 116 | bool HasMultipleParametersOnALine = false; |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 117 | while (CurrentToken != NULL) { |
| 118 | // LookForDecls is set when "if (" has been seen. Check for |
| 119 | // 'identifier' '*' 'identifier' followed by not '=' -- this |
| 120 | // '*' has to be a binary operator but determineStarAmpUsage() will |
| 121 | // categorize it as an unary operator, so set the right type here. |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 122 | if (LookForDecls && CurrentToken->Next) { |
Alexander Kornienko | 0bdc643 | 2013-07-04 14:47:51 +0000 | [diff] [blame] | 123 | FormatToken *Prev = CurrentToken->getPreviousNonComment(); |
Alexander Kornienko | 2785b9a | 2013-06-07 16:02:52 +0000 | [diff] [blame] | 124 | if (Prev) { |
Alexander Kornienko | 0bdc643 | 2013-07-04 14:47:51 +0000 | [diff] [blame] | 125 | FormatToken *PrevPrev = Prev->getPreviousNonComment(); |
Alexander Kornienko | 2785b9a | 2013-06-07 16:02:52 +0000 | [diff] [blame] | 126 | FormatToken *Next = CurrentToken->Next; |
| 127 | if (PrevPrev && PrevPrev->is(tok::identifier) && |
| 128 | Prev->isOneOf(tok::star, tok::amp, tok::ampamp) && |
| 129 | CurrentToken->is(tok::identifier) && Next->isNot(tok::equal)) { |
| 130 | Prev->Type = TT_BinaryOperator; |
| 131 | LookForDecls = false; |
| 132 | } |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 133 | } |
| 134 | } |
| 135 | |
Daniel Jasper | 5335260 | 2013-08-12 12:16:34 +0000 | [diff] [blame] | 136 | if (CurrentToken->Previous->Type == TT_PointerOrReference && |
| 137 | CurrentToken->Previous->Previous->isOneOf(tok::l_paren, |
| 138 | tok::coloncolon)) |
| 139 | MightBeFunctionType = true; |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 140 | if (CurrentToken->is(tok::r_paren)) { |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 141 | if (MightBeFunctionType && CurrentToken->Next && |
Daniel Jasper | e7d3bff | 2013-07-16 11:37:21 +0000 | [diff] [blame] | 142 | (CurrentToken->Next->is(tok::l_paren) || |
| 143 | (CurrentToken->Next->is(tok::l_square) && |
| 144 | !Contexts.back().IsExpression))) |
Daniel Jasper | 431f591 | 2013-05-28 08:33:00 +0000 | [diff] [blame] | 145 | Left->Type = TT_FunctionTypeLParen; |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 146 | Left->MatchingParen = CurrentToken; |
| 147 | CurrentToken->MatchingParen = Left; |
| 148 | |
Daniel Jasper | 63d7ced | 2013-02-05 10:07:47 +0000 | [diff] [blame] | 149 | if (StartsObjCMethodExpr) { |
Daniel Jasper | 4e77809 | 2013-02-06 10:05:46 +0000 | [diff] [blame] | 150 | CurrentToken->Type = TT_ObjCMethodExpr; |
| 151 | if (Contexts.back().FirstObjCSelectorName != NULL) { |
| 152 | Contexts.back().FirstObjCSelectorName->LongestObjCSelectorName = |
| 153 | Contexts.back().LongestObjCSelectorName; |
Daniel Jasper | 63d7ced | 2013-02-05 10:07:47 +0000 | [diff] [blame] | 154 | } |
| 155 | } |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 156 | |
Daniel Jasper | c7bd68f | 2013-07-10 14:02:49 +0000 | [diff] [blame] | 157 | if (!HasMultipleLines) |
| 158 | Left->PackingKind = PPK_Inconclusive; |
| 159 | else if (HasMultipleParametersOnALine) |
| 160 | Left->PackingKind = PPK_BinPacked; |
| 161 | else |
| 162 | Left->PackingKind = PPK_OnePerLine; |
| 163 | |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 164 | next(); |
| 165 | return true; |
| 166 | } |
Alexander Kornienko | e74de28 | 2013-03-13 14:41:29 +0000 | [diff] [blame] | 167 | if (CurrentToken->isOneOf(tok::r_square, tok::r_brace)) |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 168 | return false; |
Daniel Jasper | 9fc56f2 | 2013-02-14 15:01:34 +0000 | [diff] [blame] | 169 | updateParameterCount(Left, CurrentToken); |
Daniel Jasper | c7bd68f | 2013-07-10 14:02:49 +0000 | [diff] [blame] | 170 | if (CurrentToken->is(tok::comma) && CurrentToken->Next && |
| 171 | !CurrentToken->Next->HasUnescapedNewline && |
| 172 | !CurrentToken->Next->isTrailingComment()) |
| 173 | HasMultipleParametersOnALine = true; |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 174 | if (!consumeToken()) |
| 175 | return false; |
Daniel Jasper | c7bd68f | 2013-07-10 14:02:49 +0000 | [diff] [blame] | 176 | if (CurrentToken && CurrentToken->HasUnescapedNewline) |
| 177 | HasMultipleLines = true; |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 178 | } |
| 179 | return false; |
| 180 | } |
| 181 | |
| 182 | bool parseSquare() { |
| 183 | if (!CurrentToken) |
| 184 | return false; |
| 185 | |
Alexander Kornienko | d71b15b | 2013-06-17 13:19:53 +0000 | [diff] [blame] | 186 | // A '[' could be an index subscript (after an identifier or after |
Nico Weber | 051860e | 2013-02-10 02:08:05 +0000 | [diff] [blame] | 187 | // ')' or ']'), it could be the start of an Objective-C method |
| 188 | // 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] | 189 | FormatToken *Left = CurrentToken->Previous; |
Alexander Kornienko | 0bdc643 | 2013-07-04 14:47:51 +0000 | [diff] [blame] | 190 | FormatToken *Parent = Left->getPreviousNonComment(); |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 191 | bool StartsObjCMethodExpr = |
Daniel Jasper | 567dcf9 | 2013-09-05 09:29:45 +0000 | [diff] [blame] | 192 | Contexts.back().CanBeExpression && Left->Type != TT_LambdaLSquare && |
Alexander Kornienko | e74de28 | 2013-03-13 14:41:29 +0000 | [diff] [blame] | 193 | (!Parent || Parent->isOneOf(tok::colon, tok::l_square, tok::l_paren, |
| 194 | tok::kw_return, tok::kw_throw) || |
Daniel Jasper | ac3223e | 2013-04-10 09:49:49 +0000 | [diff] [blame] | 195 | Parent->isUnaryOperator() || Parent->Type == TT_ObjCForIn || |
Alexander Kornienko | e74de28 | 2013-03-13 14:41:29 +0000 | [diff] [blame] | 196 | Parent->Type == TT_CastRParen || |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 197 | getBinOpPrecedence(Parent->Tok.getKind(), true, true) > prec::Unknown); |
Daniel Jasper | 923ebef | 2013-03-14 13:45:21 +0000 | [diff] [blame] | 198 | ScopedContextCreator ContextCreator(*this, tok::l_square, 10); |
Daniel Jasper | 6f21a98 | 2013-03-13 07:49:51 +0000 | [diff] [blame] | 199 | Contexts.back().IsExpression = true; |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 200 | |
Daniel Jasper | 4e77809 | 2013-02-06 10:05:46 +0000 | [diff] [blame] | 201 | if (StartsObjCMethodExpr) { |
| 202 | Contexts.back().ColonIsObjCMethodExpr = true; |
| 203 | Left->Type = TT_ObjCMethodExpr; |
Daniel Jasper | a07aa66 | 2013-10-22 15:30:28 +0000 | [diff] [blame] | 204 | } else if (Parent && Parent->is(tok::at)) { |
| 205 | Left->Type = TT_ArrayInitializerLSquare; |
| 206 | } else if (Left->Type == TT_Unknown) { |
| 207 | Left->Type = TT_ArraySubscriptLSquare; |
Daniel Jasper | 4e77809 | 2013-02-06 10:05:46 +0000 | [diff] [blame] | 208 | } |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 209 | |
| 210 | while (CurrentToken != NULL) { |
| 211 | if (CurrentToken->is(tok::r_square)) { |
Daniel Jasper | ac2c974 | 2013-09-05 10:04:31 +0000 | [diff] [blame] | 212 | if (CurrentToken->Next && CurrentToken->Next->is(tok::l_paren) && |
| 213 | Left->Type == TT_ObjCMethodExpr) { |
Nico Weber | e8a9798 | 2013-02-06 06:20:11 +0000 | [diff] [blame] | 214 | // An ObjC method call is rarely followed by an open parenthesis. |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 215 | // FIXME: Do we incorrectly label ":" with this? |
| 216 | StartsObjCMethodExpr = false; |
| 217 | Left->Type = TT_Unknown; |
| 218 | } |
Daniel Jasper | 0178673 | 2013-02-04 07:21:18 +0000 | [diff] [blame] | 219 | if (StartsObjCMethodExpr) { |
Daniel Jasper | 4e77809 | 2013-02-06 10:05:46 +0000 | [diff] [blame] | 220 | CurrentToken->Type = TT_ObjCMethodExpr; |
Nico Weber | e8a9798 | 2013-02-06 06:20:11 +0000 | [diff] [blame] | 221 | // determineStarAmpUsage() thinks that '*' '[' is allocating an |
| 222 | // array of pointers, but if '[' starts a selector then '*' is a |
| 223 | // binary operator. |
Alexander Kornienko | 3fd9ccd | 2013-03-12 16:28:18 +0000 | [diff] [blame] | 224 | if (Parent != NULL && Parent->Type == TT_PointerOrReference) |
Nico Weber | 4ed7f3e | 2013-02-06 16:54:35 +0000 | [diff] [blame] | 225 | Parent->Type = TT_BinaryOperator; |
Daniel Jasper | 0178673 | 2013-02-04 07:21:18 +0000 | [diff] [blame] | 226 | } |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 227 | Left->MatchingParen = CurrentToken; |
| 228 | CurrentToken->MatchingParen = Left; |
Daniel Jasper | 4e77809 | 2013-02-06 10:05:46 +0000 | [diff] [blame] | 229 | if (Contexts.back().FirstObjCSelectorName != NULL) |
| 230 | Contexts.back().FirstObjCSelectorName->LongestObjCSelectorName = |
| 231 | Contexts.back().LongestObjCSelectorName; |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 232 | next(); |
| 233 | return true; |
| 234 | } |
Alexander Kornienko | e74de28 | 2013-03-13 14:41:29 +0000 | [diff] [blame] | 235 | if (CurrentToken->isOneOf(tok::r_paren, tok::r_brace)) |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 236 | return false; |
Daniel Jasper | a07aa66 | 2013-10-22 15:30:28 +0000 | [diff] [blame] | 237 | if (CurrentToken->is(tok::comma) && |
Daniel Jasper | 3c6aea7 | 2013-10-24 10:31:50 +0000 | [diff] [blame^] | 238 | (Left->Type == TT_ArraySubscriptLSquare || |
| 239 | Left->Type == TT_ObjCMethodExpr)) |
Daniel Jasper | a07aa66 | 2013-10-22 15:30:28 +0000 | [diff] [blame] | 240 | Left->Type = TT_ArrayInitializerLSquare; |
Daniel Jasper | 9fc56f2 | 2013-02-14 15:01:34 +0000 | [diff] [blame] | 241 | updateParameterCount(Left, CurrentToken); |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 242 | if (!consumeToken()) |
| 243 | return false; |
| 244 | } |
| 245 | return false; |
| 246 | } |
| 247 | |
| 248 | bool parseBrace() { |
Daniel Jasper | 53e72cd | 2013-05-06 08:27:33 +0000 | [diff] [blame] | 249 | if (CurrentToken != NULL) { |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 250 | FormatToken *Left = CurrentToken->Previous; |
Daniel Jasper | 3c6aea7 | 2013-10-24 10:31:50 +0000 | [diff] [blame^] | 251 | ScopedContextCreator ContextCreator(*this, tok::l_brace, 1); |
| 252 | Contexts.back().ColonIsDictLiteral = true; |
Nico Weber | f2ff812 | 2013-05-26 05:39:26 +0000 | [diff] [blame] | 253 | |
Daniel Jasper | 53e72cd | 2013-05-06 08:27:33 +0000 | [diff] [blame] | 254 | while (CurrentToken != NULL) { |
| 255 | if (CurrentToken->is(tok::r_brace)) { |
| 256 | Left->MatchingParen = CurrentToken; |
| 257 | CurrentToken->MatchingParen = Left; |
| 258 | next(); |
| 259 | return true; |
| 260 | } |
| 261 | if (CurrentToken->isOneOf(tok::r_paren, tok::r_square)) |
| 262 | return false; |
| 263 | updateParameterCount(Left, CurrentToken); |
Daniel Jasper | 3c6aea7 | 2013-10-24 10:31:50 +0000 | [diff] [blame^] | 264 | if (CurrentToken->is(tok::colon)) |
| 265 | Left->Type = TT_DictLiteral; |
Daniel Jasper | 53e72cd | 2013-05-06 08:27:33 +0000 | [diff] [blame] | 266 | if (!consumeToken()) |
| 267 | return false; |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 268 | } |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 269 | } |
Daniel Jasper | 53e72cd | 2013-05-06 08:27:33 +0000 | [diff] [blame] | 270 | // No closing "}" found, this probably starts a definition. |
| 271 | Line.StartsDefinition = true; |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 272 | return true; |
| 273 | } |
Daniel Jasper | c4615b7 | 2013-02-20 12:56:39 +0000 | [diff] [blame] | 274 | |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 275 | void updateParameterCount(FormatToken *Left, FormatToken *Current) { |
Daniel Jasper | c7bd68f | 2013-07-10 14:02:49 +0000 | [diff] [blame] | 276 | if (Current->is(tok::comma)) { |
Daniel Jasper | 9fc56f2 | 2013-02-14 15:01:34 +0000 | [diff] [blame] | 277 | ++Left->ParameterCount; |
Daniel Jasper | d4a03db | 2013-08-22 15:00:41 +0000 | [diff] [blame] | 278 | if (!Left->Role) |
| 279 | Left->Role.reset(new CommaSeparatedList(Style)); |
| 280 | Left->Role->CommaFound(Current); |
Daniel Jasper | c7bd68f | 2013-07-10 14:02:49 +0000 | [diff] [blame] | 281 | } else if (Left->ParameterCount == 0 && Current->isNot(tok::comment)) { |
Daniel Jasper | 9fc56f2 | 2013-02-14 15:01:34 +0000 | [diff] [blame] | 282 | Left->ParameterCount = 1; |
Daniel Jasper | c7bd68f | 2013-07-10 14:02:49 +0000 | [diff] [blame] | 283 | } |
Daniel Jasper | 9fc56f2 | 2013-02-14 15:01:34 +0000 | [diff] [blame] | 284 | } |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 285 | |
| 286 | bool parseConditional() { |
| 287 | while (CurrentToken != NULL) { |
| 288 | if (CurrentToken->is(tok::colon)) { |
| 289 | CurrentToken->Type = TT_ConditionalExpr; |
| 290 | next(); |
| 291 | return true; |
| 292 | } |
| 293 | if (!consumeToken()) |
| 294 | return false; |
| 295 | } |
| 296 | return false; |
| 297 | } |
| 298 | |
| 299 | bool parseTemplateDeclaration() { |
| 300 | if (CurrentToken != NULL && CurrentToken->is(tok::less)) { |
| 301 | CurrentToken->Type = TT_TemplateOpener; |
| 302 | next(); |
| 303 | if (!parseAngle()) |
| 304 | return false; |
Daniel Jasper | 34511fb | 2013-02-19 17:14:38 +0000 | [diff] [blame] | 305 | if (CurrentToken != NULL) |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 306 | CurrentToken->Previous->ClosesTemplateDeclaration = true; |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 307 | return true; |
| 308 | } |
| 309 | return false; |
| 310 | } |
| 311 | |
| 312 | bool consumeToken() { |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 313 | FormatToken *Tok = CurrentToken; |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 314 | next(); |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 315 | switch (Tok->Tok.getKind()) { |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 316 | case tok::plus: |
| 317 | case tok::minus: |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 318 | if (Tok->Previous == NULL && Line.MustBeDeclaration) |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 319 | Tok->Type = TT_ObjCMethodSpecifier; |
| 320 | break; |
| 321 | case tok::colon: |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 322 | if (Tok->Previous == NULL) |
Daniel Jasper | cf6d76a | 2013-03-18 12:50:26 +0000 | [diff] [blame] | 323 | return false; |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 324 | // Colons from ?: are handled in parseConditional(). |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 325 | if (Tok->Previous->is(tok::r_paren) && Contexts.size() == 1) { |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 326 | Tok->Type = TT_CtorInitializerColon; |
Daniel Jasper | 3c6aea7 | 2013-10-24 10:31:50 +0000 | [diff] [blame^] | 327 | } else if (Contexts.back().ColonIsDictLiteral) { |
| 328 | Tok->Type = TT_DictLiteral; |
Daniel Jasper | 4e77809 | 2013-02-06 10:05:46 +0000 | [diff] [blame] | 329 | } else if (Contexts.back().ColonIsObjCMethodExpr || |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 330 | Line.First->Type == TT_ObjCMethodSpecifier) { |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 331 | Tok->Type = TT_ObjCMethodExpr; |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 332 | Tok->Previous->Type = TT_ObjCSelectorName; |
Alexander Kornienko | 83a7dcd | 2013-09-10 09:38:25 +0000 | [diff] [blame] | 333 | if (Tok->Previous->ColumnWidth > |
Alexander Kornienko | 0089510 | 2013-06-05 14:09:10 +0000 | [diff] [blame] | 334 | Contexts.back().LongestObjCSelectorName) { |
Alexander Kornienko | 01fe9f9 | 2013-10-10 13:36:20 +0000 | [diff] [blame] | 335 | Contexts.back().LongestObjCSelectorName = Tok->Previous->ColumnWidth; |
Alexander Kornienko | 0089510 | 2013-06-05 14:09:10 +0000 | [diff] [blame] | 336 | } |
Daniel Jasper | 4e77809 | 2013-02-06 10:05:46 +0000 | [diff] [blame] | 337 | if (Contexts.back().FirstObjCSelectorName == NULL) |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 338 | Contexts.back().FirstObjCSelectorName = Tok->Previous; |
Daniel Jasper | 4e77809 | 2013-02-06 10:05:46 +0000 | [diff] [blame] | 339 | } else if (Contexts.back().ColonIsForRangeExpr) { |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 340 | Tok->Type = TT_RangeBasedForLoopColon; |
Alexander Kornienko | 01fe9f9 | 2013-10-10 13:36:20 +0000 | [diff] [blame] | 341 | } else if (CurrentToken != NULL && |
| 342 | CurrentToken->is(tok::numeric_constant)) { |
| 343 | Tok->Type = TT_BitFieldColon; |
Daniel Jasper | cea014b | 2013-10-08 16:24:07 +0000 | [diff] [blame] | 344 | } else if (Contexts.size() == 1 && Line.First->isNot(tok::kw_enum)) { |
Daniel Jasper | 6cabab4 | 2013-02-14 08:42:54 +0000 | [diff] [blame] | 345 | Tok->Type = TT_InheritanceColon; |
Daniel Jasper | 923ebef | 2013-03-14 13:45:21 +0000 | [diff] [blame] | 346 | } else if (Contexts.back().ContextKind == tok::l_paren) { |
| 347 | Tok->Type = TT_InlineASMColon; |
Daniel Jasper | 63d7ced | 2013-02-05 10:07:47 +0000 | [diff] [blame] | 348 | } |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 349 | break; |
| 350 | case tok::kw_if: |
| 351 | case tok::kw_while: |
| 352 | if (CurrentToken != NULL && CurrentToken->is(tok::l_paren)) { |
| 353 | next(); |
Nico Weber | 2726877 | 2013-06-26 00:30:14 +0000 | [diff] [blame] | 354 | if (!parseParens(/*LookForDecls=*/true)) |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 355 | return false; |
| 356 | } |
| 357 | break; |
| 358 | case tok::kw_for: |
Daniel Jasper | 4e77809 | 2013-02-06 10:05:46 +0000 | [diff] [blame] | 359 | Contexts.back().ColonIsForRangeExpr = true; |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 360 | next(); |
| 361 | if (!parseParens()) |
| 362 | return false; |
| 363 | break; |
| 364 | case tok::l_paren: |
| 365 | if (!parseParens()) |
| 366 | return false; |
Daniel Jasper | 1407bee | 2013-04-11 14:29:13 +0000 | [diff] [blame] | 367 | if (Line.MustBeDeclaration && NameFound && !Contexts.back().IsExpression) |
Daniel Jasper | 3c08a81 | 2013-02-24 18:54:32 +0000 | [diff] [blame] | 368 | Line.MightBeFunctionDecl = true; |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 369 | break; |
| 370 | case tok::l_square: |
| 371 | if (!parseSquare()) |
| 372 | return false; |
| 373 | break; |
| 374 | case tok::l_brace: |
| 375 | if (!parseBrace()) |
| 376 | return false; |
| 377 | break; |
| 378 | case tok::less: |
Daniel Jasper | 0236dd0 | 2013-07-30 22:37:19 +0000 | [diff] [blame] | 379 | if (Tok->Previous && !Tok->Previous->Tok.isLiteral() && parseAngle()) |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 380 | Tok->Type = TT_TemplateOpener; |
| 381 | else { |
| 382 | Tok->Type = TT_BinaryOperator; |
| 383 | CurrentToken = Tok; |
| 384 | next(); |
| 385 | } |
| 386 | break; |
| 387 | case tok::r_paren: |
| 388 | case tok::r_square: |
| 389 | return false; |
| 390 | case tok::r_brace: |
| 391 | // Lines can start with '}'. |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 392 | if (Tok->Previous != NULL) |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 393 | return false; |
| 394 | break; |
| 395 | case tok::greater: |
| 396 | Tok->Type = TT_BinaryOperator; |
| 397 | break; |
| 398 | case tok::kw_operator: |
Daniel Jasper | 174f60f | 2013-09-02 09:20:39 +0000 | [diff] [blame] | 399 | while (CurrentToken && |
| 400 | !CurrentToken->isOneOf(tok::l_paren, tok::semi, tok::r_paren)) { |
Alexander Kornienko | e74de28 | 2013-03-13 14:41:29 +0000 | [diff] [blame] | 401 | if (CurrentToken->isOneOf(tok::star, tok::amp)) |
Daniel Jasper | 2b4c924 | 2013-02-11 08:01:18 +0000 | [diff] [blame] | 402 | CurrentToken->Type = TT_PointerOrReference; |
| 403 | consumeToken(); |
Daniel Jasper | 174f60f | 2013-09-02 09:20:39 +0000 | [diff] [blame] | 404 | if (CurrentToken && CurrentToken->Previous->Type == TT_BinaryOperator) |
Daniel Jasper | c476ea9 | 2013-08-28 07:27:35 +0000 | [diff] [blame] | 405 | CurrentToken->Previous->Type = TT_OverloadedOperator; |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 406 | } |
Daniel Jasper | 6ea933c | 2013-05-10 07:59:58 +0000 | [diff] [blame] | 407 | if (CurrentToken) { |
Daniel Jasper | 2b4c924 | 2013-02-11 08:01:18 +0000 | [diff] [blame] | 408 | CurrentToken->Type = TT_OverloadedOperatorLParen; |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 409 | if (CurrentToken->Previous->Type == TT_BinaryOperator) |
| 410 | CurrentToken->Previous->Type = TT_OverloadedOperator; |
Daniel Jasper | 6ea933c | 2013-05-10 07:59:58 +0000 | [diff] [blame] | 411 | } |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 412 | break; |
| 413 | case tok::question: |
| 414 | parseConditional(); |
| 415 | break; |
| 416 | case tok::kw_template: |
| 417 | parseTemplateDeclaration(); |
| 418 | break; |
Nico Weber | c2e6d2a | 2013-02-11 15:32:15 +0000 | [diff] [blame] | 419 | case tok::identifier: |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 420 | if (Line.First->is(tok::kw_for) && |
| 421 | Tok->Tok.getIdentifierInfo() == &Ident_in) |
Nico Weber | c2e6d2a | 2013-02-11 15:32:15 +0000 | [diff] [blame] | 422 | Tok->Type = TT_ObjCForIn; |
| 423 | break; |
Daniel Jasper | 8ed9f2b | 2013-04-03 13:36:17 +0000 | [diff] [blame] | 424 | case tok::comma: |
| 425 | if (Contexts.back().FirstStartOfName) |
| 426 | Contexts.back().FirstStartOfName->PartOfMultiVariableDeclStmt = true; |
Daniel Jasper | e8b10d3 | 2013-07-26 16:56:36 +0000 | [diff] [blame] | 427 | if (Contexts.back().InCtorInitializer) |
| 428 | Tok->Type = TT_CtorInitializerComma; |
Daniel Jasper | 8ed9f2b | 2013-04-03 13:36:17 +0000 | [diff] [blame] | 429 | break; |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 430 | default: |
| 431 | break; |
| 432 | } |
| 433 | return true; |
| 434 | } |
| 435 | |
| 436 | void parseIncludeDirective() { |
| 437 | next(); |
| 438 | if (CurrentToken != NULL && CurrentToken->is(tok::less)) { |
| 439 | next(); |
| 440 | while (CurrentToken != NULL) { |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 441 | if (CurrentToken->isNot(tok::comment) || CurrentToken->Next) |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 442 | CurrentToken->Type = TT_ImplicitStringLiteral; |
| 443 | next(); |
| 444 | } |
| 445 | } else { |
| 446 | while (CurrentToken != NULL) { |
Daniel Jasper | 3a20441 | 2013-02-23 07:46:38 +0000 | [diff] [blame] | 447 | if (CurrentToken->is(tok::string_literal)) |
| 448 | // Mark these string literals as "implicit" literals, too, so that |
| 449 | // they are not split or line-wrapped. |
| 450 | CurrentToken->Type = TT_ImplicitStringLiteral; |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 451 | next(); |
| 452 | } |
| 453 | } |
| 454 | } |
| 455 | |
| 456 | void parseWarningOrError() { |
| 457 | next(); |
| 458 | // We still want to format the whitespace left of the first token of the |
| 459 | // warning or error. |
| 460 | next(); |
| 461 | while (CurrentToken != NULL) { |
| 462 | CurrentToken->Type = TT_ImplicitStringLiteral; |
| 463 | next(); |
| 464 | } |
| 465 | } |
| 466 | |
| 467 | void parsePreprocessorDirective() { |
| 468 | next(); |
| 469 | if (CurrentToken == NULL) |
| 470 | return; |
Alexander Kornienko | b18c258 | 2013-10-11 21:43:05 +0000 | [diff] [blame] | 471 | if (CurrentToken->Tok.is(tok::numeric_constant)) { |
| 472 | CurrentToken->SpacesRequiredBefore = 1; |
| 473 | return; |
| 474 | } |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 475 | // Hashes in the middle of a line can lead to any strange token |
| 476 | // sequence. |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 477 | if (CurrentToken->Tok.getIdentifierInfo() == NULL) |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 478 | return; |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 479 | switch (CurrentToken->Tok.getIdentifierInfo()->getPPKeywordID()) { |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 480 | case tok::pp_include: |
| 481 | case tok::pp_import: |
| 482 | parseIncludeDirective(); |
| 483 | break; |
| 484 | case tok::pp_error: |
| 485 | case tok::pp_warning: |
| 486 | parseWarningOrError(); |
| 487 | break; |
Daniel Jasper | aae7bad | 2013-04-23 13:54:04 +0000 | [diff] [blame] | 488 | case tok::pp_if: |
| 489 | case tok::pp_elif: |
| 490 | parseLine(); |
| 491 | break; |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 492 | default: |
| 493 | break; |
| 494 | } |
Daniel Jasper | 5b7e7b0 | 2013-02-05 09:34:14 +0000 | [diff] [blame] | 495 | while (CurrentToken != NULL) |
| 496 | next(); |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 497 | } |
| 498 | |
Nico Weber | 95e8e46 | 2013-02-12 16:17:07 +0000 | [diff] [blame] | 499 | public: |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 500 | LineType parseLine() { |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 501 | if (CurrentToken->is(tok::hash)) { |
| 502 | parsePreprocessorDirective(); |
| 503 | return LT_PreprocessorDirective; |
| 504 | } |
| 505 | while (CurrentToken != NULL) { |
| 506 | if (CurrentToken->is(tok::kw_virtual)) |
| 507 | KeywordVirtualFound = true; |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 508 | if (!consumeToken()) |
| 509 | return LT_Invalid; |
| 510 | } |
| 511 | if (KeywordVirtualFound) |
| 512 | return LT_VirtualFunctionDecl; |
| 513 | |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 514 | if (Line.First->Type == TT_ObjCMethodSpecifier) { |
Daniel Jasper | 4e77809 | 2013-02-06 10:05:46 +0000 | [diff] [blame] | 515 | if (Contexts.back().FirstObjCSelectorName != NULL) |
| 516 | Contexts.back().FirstObjCSelectorName->LongestObjCSelectorName = |
| 517 | Contexts.back().LongestObjCSelectorName; |
Daniel Jasper | 63d7ced | 2013-02-05 10:07:47 +0000 | [diff] [blame] | 518 | return LT_ObjCMethodDecl; |
| 519 | } |
| 520 | |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 521 | return LT_Other; |
| 522 | } |
| 523 | |
Nico Weber | 95e8e46 | 2013-02-12 16:17:07 +0000 | [diff] [blame] | 524 | private: |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 525 | void next() { |
Daniel Jasper | 0178673 | 2013-02-04 07:21:18 +0000 | [diff] [blame] | 526 | if (CurrentToken != NULL) { |
| 527 | determineTokenType(*CurrentToken); |
Daniel Jasper | 4e77809 | 2013-02-06 10:05:46 +0000 | [diff] [blame] | 528 | CurrentToken->BindingStrength = Contexts.back().BindingStrength; |
Daniel Jasper | 0178673 | 2013-02-04 07:21:18 +0000 | [diff] [blame] | 529 | } |
| 530 | |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 531 | if (CurrentToken != NULL) |
| 532 | CurrentToken = CurrentToken->Next; |
Daniel Jasper | d0f349b | 2013-02-18 12:44:35 +0000 | [diff] [blame] | 533 | |
Manuel Klimek | ae76f7f | 2013-10-11 21:25:45 +0000 | [diff] [blame] | 534 | if (CurrentToken != NULL) { |
| 535 | // Reset token type in case we have already looked at it and then |
| 536 | // recovered from an error (e.g. failure to find the matching >). |
| 537 | if (CurrentToken->Type != TT_LambdaLSquare && |
| 538 | CurrentToken->Type != TT_ImplicitStringLiteral) |
| 539 | CurrentToken->Type = TT_Unknown; |
| 540 | if (CurrentToken->Role) |
| 541 | CurrentToken->Role.reset(NULL); |
| 542 | CurrentToken->FakeLParens.clear(); |
| 543 | CurrentToken->FakeRParens = 0; |
| 544 | } |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 545 | } |
| 546 | |
Daniel Jasper | 4e77809 | 2013-02-06 10:05:46 +0000 | [diff] [blame] | 547 | /// \brief A struct to hold information valid in a specific context, e.g. |
| 548 | /// a pair of parenthesis. |
| 549 | struct Context { |
Daniel Jasper | 923ebef | 2013-03-14 13:45:21 +0000 | [diff] [blame] | 550 | Context(tok::TokenKind ContextKind, unsigned BindingStrength, |
| 551 | bool IsExpression) |
| 552 | : ContextKind(ContextKind), BindingStrength(BindingStrength), |
| 553 | LongestObjCSelectorName(0), ColonIsForRangeExpr(false), |
Daniel Jasper | 3c6aea7 | 2013-10-24 10:31:50 +0000 | [diff] [blame^] | 554 | ColonIsDictLiteral(false), ColonIsObjCMethodExpr(false), |
Nico Weber | f2ff812 | 2013-05-26 05:39:26 +0000 | [diff] [blame] | 555 | FirstObjCSelectorName(NULL), FirstStartOfName(NULL), |
Daniel Jasper | e8b10d3 | 2013-07-26 16:56:36 +0000 | [diff] [blame] | 556 | IsExpression(IsExpression), CanBeExpression(true), |
| 557 | InCtorInitializer(false) {} |
Daniel Jasper | 0178673 | 2013-02-04 07:21:18 +0000 | [diff] [blame] | 558 | |
Daniel Jasper | 923ebef | 2013-03-14 13:45:21 +0000 | [diff] [blame] | 559 | tok::TokenKind ContextKind; |
Daniel Jasper | 4e77809 | 2013-02-06 10:05:46 +0000 | [diff] [blame] | 560 | unsigned BindingStrength; |
| 561 | unsigned LongestObjCSelectorName; |
| 562 | bool ColonIsForRangeExpr; |
Daniel Jasper | 3c6aea7 | 2013-10-24 10:31:50 +0000 | [diff] [blame^] | 563 | bool ColonIsDictLiteral; |
Daniel Jasper | 4e77809 | 2013-02-06 10:05:46 +0000 | [diff] [blame] | 564 | bool ColonIsObjCMethodExpr; |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 565 | FormatToken *FirstObjCSelectorName; |
| 566 | FormatToken *FirstStartOfName; |
Daniel Jasper | 4e77809 | 2013-02-06 10:05:46 +0000 | [diff] [blame] | 567 | bool IsExpression; |
Daniel Jasper | 6f21a98 | 2013-03-13 07:49:51 +0000 | [diff] [blame] | 568 | bool CanBeExpression; |
Daniel Jasper | e8b10d3 | 2013-07-26 16:56:36 +0000 | [diff] [blame] | 569 | bool InCtorInitializer; |
Daniel Jasper | 4e77809 | 2013-02-06 10:05:46 +0000 | [diff] [blame] | 570 | }; |
| 571 | |
| 572 | /// \brief Puts a new \c Context onto the stack \c Contexts for the lifetime |
| 573 | /// of each instance. |
| 574 | struct ScopedContextCreator { |
| 575 | AnnotatingParser &P; |
| 576 | |
Daniel Jasper | 923ebef | 2013-03-14 13:45:21 +0000 | [diff] [blame] | 577 | ScopedContextCreator(AnnotatingParser &P, tok::TokenKind ContextKind, |
| 578 | unsigned Increase) |
| 579 | : P(P) { |
Daniel Jasper | 2a409b6 | 2013-07-08 14:34:09 +0000 | [diff] [blame] | 580 | P.Contexts.push_back(Context(ContextKind, |
| 581 | P.Contexts.back().BindingStrength + Increase, |
| 582 | P.Contexts.back().IsExpression)); |
Daniel Jasper | 4e77809 | 2013-02-06 10:05:46 +0000 | [diff] [blame] | 583 | } |
| 584 | |
| 585 | ~ScopedContextCreator() { P.Contexts.pop_back(); } |
| 586 | }; |
Daniel Jasper | 0178673 | 2013-02-04 07:21:18 +0000 | [diff] [blame] | 587 | |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 588 | void determineTokenType(FormatToken &Current) { |
| 589 | if (Current.getPrecedence() == prec::Assignment && |
Daniel Jasper | 5335260 | 2013-08-12 12:16:34 +0000 | [diff] [blame] | 590 | !Line.First->isOneOf(tok::kw_template, tok::kw_using) && |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 591 | (!Current.Previous || Current.Previous->isNot(tok::kw_operator))) { |
Daniel Jasper | 4e77809 | 2013-02-06 10:05:46 +0000 | [diff] [blame] | 592 | Contexts.back().IsExpression = true; |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 593 | for (FormatToken *Previous = Current.Previous; |
Daniel Jasper | 7e27400 | 2013-09-11 20:37:10 +0000 | [diff] [blame] | 594 | Previous && !Previous->isOneOf(tok::comma, tok::semi); |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 595 | Previous = Previous->Previous) { |
Daniel Jasper | 9c65b06 | 2013-02-27 11:43:50 +0000 | [diff] [blame] | 596 | if (Previous->is(tok::r_square)) |
| 597 | Previous = Previous->MatchingParen; |
Daniel Jasper | 0178673 | 2013-02-04 07:21:18 +0000 | [diff] [blame] | 598 | if (Previous->Type == TT_BinaryOperator && |
Alexander Kornienko | e74de28 | 2013-03-13 14:41:29 +0000 | [diff] [blame] | 599 | Previous->isOneOf(tok::star, tok::amp)) { |
Daniel Jasper | 0178673 | 2013-02-04 07:21:18 +0000 | [diff] [blame] | 600 | Previous->Type = TT_PointerOrReference; |
| 601 | } |
Daniel Jasper | 0178673 | 2013-02-04 07:21:18 +0000 | [diff] [blame] | 602 | } |
Alexander Kornienko | e74de28 | 2013-03-13 14:41:29 +0000 | [diff] [blame] | 603 | } else if (Current.isOneOf(tok::kw_return, tok::kw_throw) || |
Nico Weber | 95e8e46 | 2013-02-12 16:17:07 +0000 | [diff] [blame] | 604 | (Current.is(tok::l_paren) && !Line.MustBeDeclaration && |
Daniel Jasper | 378d93d | 2013-05-13 07:14:40 +0000 | [diff] [blame] | 605 | !Line.InPPDirective && |
Manuel Klimek | 2530fd5 | 2013-08-12 03:51:17 +0000 | [diff] [blame] | 606 | (!Current.Previous || |
Daniel Jasper | 5335260 | 2013-08-12 12:16:34 +0000 | [diff] [blame] | 607 | !Current.Previous->isOneOf(tok::kw_for, tok::kw_catch)))) { |
Daniel Jasper | 4e77809 | 2013-02-06 10:05:46 +0000 | [diff] [blame] | 608 | Contexts.back().IsExpression = true; |
Alexander Kornienko | e74de28 | 2013-03-13 14:41:29 +0000 | [diff] [blame] | 609 | } else if (Current.isOneOf(tok::r_paren, tok::greater, tok::comma)) { |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 610 | for (FormatToken *Previous = Current.Previous; |
Alexander Kornienko | e74de28 | 2013-03-13 14:41:29 +0000 | [diff] [blame] | 611 | Previous && Previous->isOneOf(tok::star, tok::amp); |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 612 | Previous = Previous->Previous) |
Nico Weber | 95e8e46 | 2013-02-12 16:17:07 +0000 | [diff] [blame] | 613 | Previous->Type = TT_PointerOrReference; |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 614 | } else if (Current.Previous && |
| 615 | Current.Previous->Type == TT_CtorInitializerColon) { |
Daniel Jasper | d0f349b | 2013-02-18 12:44:35 +0000 | [diff] [blame] | 616 | Contexts.back().IsExpression = true; |
Daniel Jasper | e8b10d3 | 2013-07-26 16:56:36 +0000 | [diff] [blame] | 617 | Contexts.back().InCtorInitializer = true; |
Daniel Jasper | 6f21a98 | 2013-03-13 07:49:51 +0000 | [diff] [blame] | 618 | } else if (Current.is(tok::kw_new)) { |
| 619 | Contexts.back().CanBeExpression = false; |
Daniel Jasper | 16a69ef | 2013-05-03 14:41:24 +0000 | [diff] [blame] | 620 | } else if (Current.is(tok::semi)) { |
| 621 | // This should be the condition or increment in a for-loop. |
| 622 | Contexts.back().IsExpression = true; |
Nico Weber | 95e8e46 | 2013-02-12 16:17:07 +0000 | [diff] [blame] | 623 | } |
Daniel Jasper | 0178673 | 2013-02-04 07:21:18 +0000 | [diff] [blame] | 624 | |
| 625 | if (Current.Type == TT_Unknown) { |
Daniel Jasper | 6b3ff8c | 2013-09-27 08:29:16 +0000 | [diff] [blame] | 626 | // Line.MightBeFunctionDecl can only be true after the parentheses of a |
| 627 | // function declaration have been found. In this case, 'Current' is a |
| 628 | // trailing token of this declaration and thus cannot be a name. |
| 629 | if (isStartOfName(Current) && !Line.MightBeFunctionDecl) { |
Daniel Jasper | 8ed9f2b | 2013-04-03 13:36:17 +0000 | [diff] [blame] | 630 | Contexts.back().FirstStartOfName = &Current; |
Daniel Jasper | 3c08a81 | 2013-02-24 18:54:32 +0000 | [diff] [blame] | 631 | Current.Type = TT_StartOfName; |
Daniel Jasper | 1407bee | 2013-04-11 14:29:13 +0000 | [diff] [blame] | 632 | NameFound = true; |
Daniel Jasper | 2ca3741 | 2013-07-09 14:36:48 +0000 | [diff] [blame] | 633 | } else if (Current.is(tok::kw_auto)) { |
| 634 | AutoFound = true; |
Daniel Jasper | 3262f4c | 2013-07-11 14:33:06 +0000 | [diff] [blame] | 635 | } else if (Current.is(tok::arrow) && AutoFound && |
| 636 | Line.MustBeDeclaration) { |
Daniel Jasper | 2ca3741 | 2013-07-09 14:36:48 +0000 | [diff] [blame] | 637 | Current.Type = TT_TrailingReturnArrow; |
Alexander Kornienko | e74de28 | 2013-03-13 14:41:29 +0000 | [diff] [blame] | 638 | } else if (Current.isOneOf(tok::star, tok::amp, tok::ampamp)) { |
Daniel Jasper | 4e77809 | 2013-02-06 10:05:46 +0000 | [diff] [blame] | 639 | Current.Type = |
Daniel Jasper | d6104f6 | 2013-07-05 13:30:40 +0000 | [diff] [blame] | 640 | determineStarAmpUsage(Current, Contexts.back().CanBeExpression && |
| 641 | Contexts.back().IsExpression); |
Alexander Kornienko | e74de28 | 2013-03-13 14:41:29 +0000 | [diff] [blame] | 642 | } else if (Current.isOneOf(tok::minus, tok::plus, tok::caret)) { |
Daniel Jasper | 0178673 | 2013-02-04 07:21:18 +0000 | [diff] [blame] | 643 | Current.Type = determinePlusMinusCaretUsage(Current); |
Alexander Kornienko | e74de28 | 2013-03-13 14:41:29 +0000 | [diff] [blame] | 644 | } else if (Current.isOneOf(tok::minusminus, tok::plusplus)) { |
Daniel Jasper | 0178673 | 2013-02-04 07:21:18 +0000 | [diff] [blame] | 645 | Current.Type = determineIncrementUsage(Current); |
| 646 | } else if (Current.is(tok::exclaim)) { |
| 647 | Current.Type = TT_UnaryOperator; |
Manuel Klimek | 31e44f7 | 2013-09-04 08:20:47 +0000 | [diff] [blame] | 648 | } else if (Current.isBinaryOperator() && |
| 649 | (!Current.Previous || |
| 650 | Current.Previous->isNot(tok::l_square))) { |
Daniel Jasper | 0178673 | 2013-02-04 07:21:18 +0000 | [diff] [blame] | 651 | Current.Type = TT_BinaryOperator; |
| 652 | } else if (Current.is(tok::comment)) { |
Alexander Kornienko | 0089510 | 2013-06-05 14:09:10 +0000 | [diff] [blame] | 653 | if (Current.TokenText.startswith("//")) |
Daniel Jasper | 0178673 | 2013-02-04 07:21:18 +0000 | [diff] [blame] | 654 | Current.Type = TT_LineComment; |
| 655 | else |
| 656 | Current.Type = TT_BlockComment; |
Nico Weber | 37d6931 | 2013-02-13 04:13:13 +0000 | [diff] [blame] | 657 | } else if (Current.is(tok::r_paren)) { |
Daniel Jasper | b8b4295 | 2013-05-31 16:14:28 +0000 | [diff] [blame] | 658 | FormatToken *LeftOfParens = NULL; |
| 659 | if (Current.MatchingParen) |
Alexander Kornienko | 0bdc643 | 2013-07-04 14:47:51 +0000 | [diff] [blame] | 660 | LeftOfParens = Current.MatchingParen->getPreviousNonComment(); |
Daniel Jasper | b8b4295 | 2013-05-31 16:14:28 +0000 | [diff] [blame] | 661 | bool IsCast = false; |
| 662 | bool ParensAreEmpty = Current.Previous == Current.MatchingParen; |
| 663 | bool ParensAreType = !Current.Previous || |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 664 | Current.Previous->Type == TT_PointerOrReference || |
Daniel Jasper | b8b4295 | 2013-05-31 16:14:28 +0000 | [diff] [blame] | 665 | Current.Previous->Type == TT_TemplateCloser || |
| 666 | isSimpleTypeSpecifier(*Current.Previous); |
Nico Weber | 37d6931 | 2013-02-13 04:13:13 +0000 | [diff] [blame] | 667 | bool ParensCouldEndDecl = |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 668 | Current.Next && |
| 669 | Current.Next->isOneOf(tok::equal, tok::semi, tok::l_brace); |
Daniel Jasper | 6a365aa | 2013-03-13 17:13:53 +0000 | [diff] [blame] | 670 | bool IsSizeOfOrAlignOf = |
Daniel Jasper | b8b4295 | 2013-05-31 16:14:28 +0000 | [diff] [blame] | 671 | LeftOfParens && |
| 672 | LeftOfParens->isOneOf(tok::kw_sizeof, tok::kw_alignof); |
| 673 | if (ParensAreType && !ParensCouldEndDecl && !IsSizeOfOrAlignOf && |
Daniel Jasper | 0c36878 | 2013-07-15 15:04:42 +0000 | [diff] [blame] | 674 | (Contexts.back().IsExpression || |
| 675 | (Current.Next && Current.Next->isBinaryOperator()))) |
Daniel Jasper | b8b4295 | 2013-05-31 16:14:28 +0000 | [diff] [blame] | 676 | IsCast = true; |
Daniel Jasper | 2a409b6 | 2013-07-08 14:34:09 +0000 | [diff] [blame] | 677 | if (Current.Next && Current.Next->isNot(tok::string_literal) && |
Daniel Jasper | b8b4295 | 2013-05-31 16:14:28 +0000 | [diff] [blame] | 678 | (Current.Next->Tok.isLiteral() || |
| 679 | Current.Next->isOneOf(tok::kw_sizeof, tok::kw_alignof))) |
| 680 | IsCast = true; |
| 681 | // If there is an identifier after the (), it is likely a cast, unless |
| 682 | // there is also an identifier before the (). |
Daniel Jasper | ff1a2e5 | 2013-06-06 08:20:20 +0000 | [diff] [blame] | 683 | if (LeftOfParens && (LeftOfParens->Tok.getIdentifierInfo() == NULL || |
| 684 | LeftOfParens->is(tok::kw_return)) && |
Daniel Jasper | 526df0f | 2013-07-08 14:58:01 +0000 | [diff] [blame] | 685 | LeftOfParens->Type != TT_OverloadedOperator && |
Nico Weber | 465e861 | 2013-06-25 00:55:57 +0000 | [diff] [blame] | 686 | LeftOfParens->Type != TT_TemplateCloser && Current.Next && |
| 687 | Current.Next->is(tok::identifier)) |
Daniel Jasper | b8b4295 | 2013-05-31 16:14:28 +0000 | [diff] [blame] | 688 | IsCast = true; |
| 689 | if (IsCast && !ParensAreEmpty) |
Nico Weber | 37d6931 | 2013-02-13 04:13:13 +0000 | [diff] [blame] | 690 | Current.Type = TT_CastRParen; |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 691 | } else if (Current.is(tok::at) && Current.Next) { |
| 692 | switch (Current.Next->Tok.getObjCKeywordID()) { |
Daniel Jasper | 0178673 | 2013-02-04 07:21:18 +0000 | [diff] [blame] | 693 | case tok::objc_interface: |
| 694 | case tok::objc_implementation: |
| 695 | case tok::objc_protocol: |
| 696 | Current.Type = TT_ObjCDecl; |
| 697 | break; |
| 698 | case tok::objc_property: |
| 699 | Current.Type = TT_ObjCProperty; |
| 700 | break; |
| 701 | default: |
| 702 | break; |
| 703 | } |
Daniel Jasper | 5ad390d | 2013-05-28 11:30:49 +0000 | [diff] [blame] | 704 | } else if (Current.is(tok::period)) { |
Alexander Kornienko | 0bdc643 | 2013-07-04 14:47:51 +0000 | [diff] [blame] | 705 | FormatToken *PreviousNoComment = Current.getPreviousNonComment(); |
Daniel Jasper | 5ad390d | 2013-05-28 11:30:49 +0000 | [diff] [blame] | 706 | if (PreviousNoComment && |
| 707 | PreviousNoComment->isOneOf(tok::comma, tok::l_brace)) |
| 708 | Current.Type = TT_DesignatedInitializerPeriod; |
Daniel Jasper | 0178673 | 2013-02-04 07:21:18 +0000 | [diff] [blame] | 709 | } |
| 710 | } |
| 711 | } |
| 712 | |
Daniel Jasper | 6ac431c | 2013-07-02 09:47:29 +0000 | [diff] [blame] | 713 | /// \brief Take a guess at whether \p Tok starts a name of a function or |
| 714 | /// variable declaration. |
| 715 | /// |
| 716 | /// This is a heuristic based on whether \p Tok is an identifier following |
| 717 | /// something that is likely a type. |
| 718 | bool isStartOfName(const FormatToken &Tok) { |
| 719 | if (Tok.isNot(tok::identifier) || Tok.Previous == NULL) |
| 720 | return false; |
| 721 | |
| 722 | // Skip "const" as it does not have an influence on whether this is a name. |
| 723 | FormatToken *PreviousNotConst = Tok.Previous; |
| 724 | while (PreviousNotConst != NULL && PreviousNotConst->is(tok::kw_const)) |
| 725 | PreviousNotConst = PreviousNotConst->Previous; |
| 726 | |
| 727 | if (PreviousNotConst == NULL) |
| 728 | return false; |
| 729 | |
Daniel Jasper | 2a409b6 | 2013-07-08 14:34:09 +0000 | [diff] [blame] | 730 | bool IsPPKeyword = PreviousNotConst->is(tok::identifier) && |
| 731 | PreviousNotConst->Previous && |
| 732 | PreviousNotConst->Previous->is(tok::hash); |
Daniel Jasper | 6ac431c | 2013-07-02 09:47:29 +0000 | [diff] [blame] | 733 | |
Daniel Jasper | 92495a8 | 2013-08-19 10:16:18 +0000 | [diff] [blame] | 734 | if (PreviousNotConst->Type == TT_TemplateCloser) |
| 735 | return PreviousNotConst && PreviousNotConst->MatchingParen && |
| 736 | PreviousNotConst->MatchingParen->Previous && |
| 737 | PreviousNotConst->MatchingParen->Previous->isNot(tok::kw_template); |
| 738 | |
Daniel Jasper | 6ac431c | 2013-07-02 09:47:29 +0000 | [diff] [blame] | 739 | return (!IsPPKeyword && PreviousNotConst->is(tok::identifier)) || |
| 740 | PreviousNotConst->Type == TT_PointerOrReference || |
Daniel Jasper | 6ac431c | 2013-07-02 09:47:29 +0000 | [diff] [blame] | 741 | isSimpleTypeSpecifier(*PreviousNotConst); |
| 742 | } |
| 743 | |
Daniel Jasper | 0178673 | 2013-02-04 07:21:18 +0000 | [diff] [blame] | 744 | /// \brief Return the type of the given token assuming it is * or &. |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 745 | TokenType determineStarAmpUsage(const FormatToken &Tok, bool IsExpression) { |
Alexander Kornienko | 0bdc643 | 2013-07-04 14:47:51 +0000 | [diff] [blame] | 746 | const FormatToken *PrevToken = Tok.getPreviousNonComment(); |
Daniel Jasper | 0178673 | 2013-02-04 07:21:18 +0000 | [diff] [blame] | 747 | if (PrevToken == NULL) |
| 748 | return TT_UnaryOperator; |
| 749 | |
Alexander Kornienko | 0bdc643 | 2013-07-04 14:47:51 +0000 | [diff] [blame] | 750 | const FormatToken *NextToken = Tok.getNextNonComment(); |
Daniel Jasper | 0178673 | 2013-02-04 07:21:18 +0000 | [diff] [blame] | 751 | if (NextToken == NULL) |
| 752 | return TT_Unknown; |
| 753 | |
Daniel Jasper | 431f591 | 2013-05-28 08:33:00 +0000 | [diff] [blame] | 754 | if (PrevToken->is(tok::coloncolon) || |
| 755 | (PrevToken->is(tok::l_paren) && !IsExpression)) |
Daniel Jasper | 8a5d7cd | 2013-03-01 17:13:29 +0000 | [diff] [blame] | 756 | return TT_PointerOrReference; |
| 757 | |
Alexander Kornienko | e74de28 | 2013-03-13 14:41:29 +0000 | [diff] [blame] | 758 | if (PrevToken->isOneOf(tok::l_paren, tok::l_square, tok::l_brace, |
Daniel Jasper | d3cf17b | 2013-03-14 10:50:25 +0000 | [diff] [blame] | 759 | tok::comma, tok::semi, tok::kw_return, tok::colon, |
Daniel Jasper | 65da8e9 | 2013-09-21 17:31:51 +0000 | [diff] [blame] | 760 | tok::equal, tok::kw_delete, tok::kw_sizeof) || |
Alexander Kornienko | e74de28 | 2013-03-13 14:41:29 +0000 | [diff] [blame] | 761 | PrevToken->Type == TT_BinaryOperator || |
Daniel Jasper | 0178673 | 2013-02-04 07:21:18 +0000 | [diff] [blame] | 762 | PrevToken->Type == TT_UnaryOperator || PrevToken->Type == TT_CastRParen) |
| 763 | return TT_UnaryOperator; |
| 764 | |
Nico Weber | e8a9798 | 2013-02-06 06:20:11 +0000 | [diff] [blame] | 765 | if (NextToken->is(tok::l_square)) |
| 766 | return TT_PointerOrReference; |
| 767 | |
Daniel Jasper | db8afe4 | 2013-09-10 10:26:38 +0000 | [diff] [blame] | 768 | if (PrevToken->is(tok::r_paren) && PrevToken->MatchingParen && |
| 769 | PrevToken->MatchingParen->Previous && |
| 770 | PrevToken->MatchingParen->Previous->is(tok::kw_typeof)) |
| 771 | return TT_PointerOrReference; |
| 772 | |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 773 | if (PrevToken->Tok.isLiteral() || |
Alexander Kornienko | e74de28 | 2013-03-13 14:41:29 +0000 | [diff] [blame] | 774 | PrevToken->isOneOf(tok::r_paren, tok::r_square) || |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 775 | NextToken->Tok.isLiteral() || NextToken->isUnaryOperator()) |
Daniel Jasper | 0178673 | 2013-02-04 07:21:18 +0000 | [diff] [blame] | 776 | return TT_BinaryOperator; |
| 777 | |
Daniel Jasper | 0178673 | 2013-02-04 07:21:18 +0000 | [diff] [blame] | 778 | // It is very unlikely that we are going to find a pointer or reference type |
| 779 | // definition on the RHS of an assignment. |
| 780 | if (IsExpression) |
| 781 | return TT_BinaryOperator; |
| 782 | |
| 783 | return TT_PointerOrReference; |
| 784 | } |
| 785 | |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 786 | TokenType determinePlusMinusCaretUsage(const FormatToken &Tok) { |
Alexander Kornienko | 0bdc643 | 2013-07-04 14:47:51 +0000 | [diff] [blame] | 787 | const FormatToken *PrevToken = Tok.getPreviousNonComment(); |
Daniel Jasper | b8b4295 | 2013-05-31 16:14:28 +0000 | [diff] [blame] | 788 | if (PrevToken == NULL || PrevToken->Type == TT_CastRParen) |
Daniel Jasper | 0178673 | 2013-02-04 07:21:18 +0000 | [diff] [blame] | 789 | return TT_UnaryOperator; |
| 790 | |
| 791 | // Use heuristics to recognize unary operators. |
Alexander Kornienko | e74de28 | 2013-03-13 14:41:29 +0000 | [diff] [blame] | 792 | if (PrevToken->isOneOf(tok::equal, tok::l_paren, tok::comma, tok::l_square, |
| 793 | tok::question, tok::colon, tok::kw_return, |
| 794 | tok::kw_case, tok::at, tok::l_brace)) |
Daniel Jasper | 0178673 | 2013-02-04 07:21:18 +0000 | [diff] [blame] | 795 | return TT_UnaryOperator; |
| 796 | |
Nico Weber | ee0feec | 2013-02-05 16:21:00 +0000 | [diff] [blame] | 797 | // There can't be two consecutive binary operators. |
Daniel Jasper | 0178673 | 2013-02-04 07:21:18 +0000 | [diff] [blame] | 798 | if (PrevToken->Type == TT_BinaryOperator) |
| 799 | return TT_UnaryOperator; |
| 800 | |
| 801 | // Fall back to marking the token as binary operator. |
| 802 | return TT_BinaryOperator; |
| 803 | } |
| 804 | |
| 805 | /// \brief Determine whether ++/-- are pre- or post-increments/-decrements. |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 806 | TokenType determineIncrementUsage(const FormatToken &Tok) { |
Alexander Kornienko | 0bdc643 | 2013-07-04 14:47:51 +0000 | [diff] [blame] | 807 | const FormatToken *PrevToken = Tok.getPreviousNonComment(); |
Daniel Jasper | b8b4295 | 2013-05-31 16:14:28 +0000 | [diff] [blame] | 808 | if (PrevToken == NULL || PrevToken->Type == TT_CastRParen) |
Daniel Jasper | 0178673 | 2013-02-04 07:21:18 +0000 | [diff] [blame] | 809 | return TT_UnaryOperator; |
Alexander Kornienko | e74de28 | 2013-03-13 14:41:29 +0000 | [diff] [blame] | 810 | if (PrevToken->isOneOf(tok::r_paren, tok::r_square, tok::identifier)) |
Daniel Jasper | 0178673 | 2013-02-04 07:21:18 +0000 | [diff] [blame] | 811 | return TT_TrailingUnaryOperator; |
| 812 | |
| 813 | return TT_UnaryOperator; |
| 814 | } |
Daniel Jasper | 4e77809 | 2013-02-06 10:05:46 +0000 | [diff] [blame] | 815 | |
Daniel Jasper | 8ed9f2b | 2013-04-03 13:36:17 +0000 | [diff] [blame] | 816 | // FIXME: This is copy&pasted from Sema. Put it in a common place and remove |
| 817 | // duplication. |
| 818 | /// \brief Determine whether the token kind starts a simple-type-specifier. |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 819 | bool isSimpleTypeSpecifier(const FormatToken &Tok) const { |
| 820 | switch (Tok.Tok.getKind()) { |
Daniel Jasper | 8ed9f2b | 2013-04-03 13:36:17 +0000 | [diff] [blame] | 821 | case tok::kw_short: |
| 822 | case tok::kw_long: |
| 823 | case tok::kw___int64: |
| 824 | case tok::kw___int128: |
| 825 | case tok::kw_signed: |
| 826 | case tok::kw_unsigned: |
| 827 | case tok::kw_void: |
| 828 | case tok::kw_char: |
| 829 | case tok::kw_int: |
| 830 | case tok::kw_half: |
| 831 | case tok::kw_float: |
| 832 | case tok::kw_double: |
| 833 | case tok::kw_wchar_t: |
| 834 | case tok::kw_bool: |
| 835 | case tok::kw___underlying_type: |
Daniel Jasper | 8ed9f2b | 2013-04-03 13:36:17 +0000 | [diff] [blame] | 836 | case tok::annot_typename: |
| 837 | case tok::kw_char16_t: |
| 838 | case tok::kw_char32_t: |
| 839 | case tok::kw_typeof: |
| 840 | case tok::kw_decltype: |
Alexander Kornienko | 0089510 | 2013-06-05 14:09:10 +0000 | [diff] [blame] | 841 | return true; |
Daniel Jasper | 8ed9f2b | 2013-04-03 13:36:17 +0000 | [diff] [blame] | 842 | default: |
Alexander Kornienko | 0089510 | 2013-06-05 14:09:10 +0000 | [diff] [blame] | 843 | return false; |
Daniel Jasper | 8ed9f2b | 2013-04-03 13:36:17 +0000 | [diff] [blame] | 844 | } |
Daniel Jasper | 8ed9f2b | 2013-04-03 13:36:17 +0000 | [diff] [blame] | 845 | } |
| 846 | |
Daniel Jasper | 4e77809 | 2013-02-06 10:05:46 +0000 | [diff] [blame] | 847 | SmallVector<Context, 8> Contexts; |
| 848 | |
Daniel Jasper | d4a03db | 2013-08-22 15:00:41 +0000 | [diff] [blame] | 849 | const FormatStyle &Style; |
Daniel Jasper | 4e77809 | 2013-02-06 10:05:46 +0000 | [diff] [blame] | 850 | AnnotatedLine &Line; |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 851 | FormatToken *CurrentToken; |
Daniel Jasper | 4e77809 | 2013-02-06 10:05:46 +0000 | [diff] [blame] | 852 | bool KeywordVirtualFound; |
Daniel Jasper | 1407bee | 2013-04-11 14:29:13 +0000 | [diff] [blame] | 853 | bool NameFound; |
Daniel Jasper | 2ca3741 | 2013-07-09 14:36:48 +0000 | [diff] [blame] | 854 | bool AutoFound; |
Nico Weber | c2e6d2a | 2013-02-11 15:32:15 +0000 | [diff] [blame] | 855 | IdentifierInfo &Ident_in; |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 856 | }; |
| 857 | |
Daniel Jasper | d489f8c | 2013-08-27 11:09:05 +0000 | [diff] [blame] | 858 | static int PrecedenceUnaryOperator = prec::PointerToMember + 1; |
| 859 | static int PrecedenceArrowAndPeriod = prec::PointerToMember + 2; |
| 860 | |
Daniel Jasper | 29f123b | 2013-02-08 15:28:42 +0000 | [diff] [blame] | 861 | /// \brief Parses binary expressions by inserting fake parenthesis based on |
| 862 | /// operator precedence. |
| 863 | class ExpressionParser { |
| 864 | public: |
Daniel Jasper | 9acb8b4 | 2013-06-06 09:11:58 +0000 | [diff] [blame] | 865 | ExpressionParser(AnnotatedLine &Line) : Current(Line.First) { |
| 866 | // Skip leading "}", e.g. in "} else if (...) {". |
| 867 | if (Current->is(tok::r_brace)) |
| 868 | next(); |
| 869 | } |
Daniel Jasper | 29f123b | 2013-02-08 15:28:42 +0000 | [diff] [blame] | 870 | |
| 871 | /// \brief Parse expressions with the given operatore precedence. |
Daniel Jasper | 237d4c1 | 2013-02-23 21:01:55 +0000 | [diff] [blame] | 872 | void parse(int Precedence = 0) { |
Daniel Jasper | f78bf4a | 2013-09-30 08:29:03 +0000 | [diff] [blame] | 873 | // Skip 'return' as it is not part of a binary expression. |
| 874 | while (Current && Current->is(tok::kw_return)) |
| 875 | next(); |
| 876 | |
Daniel Jasper | d489f8c | 2013-08-27 11:09:05 +0000 | [diff] [blame] | 877 | if (Current == NULL || Precedence > PrecedenceArrowAndPeriod) |
Daniel Jasper | 3618e6f | 2013-08-23 15:14:03 +0000 | [diff] [blame] | 878 | return; |
| 879 | |
Daniel Jasper | c01897c | 2013-05-31 14:56:12 +0000 | [diff] [blame] | 880 | // Conditional expressions need to be parsed separately for proper nesting. |
Daniel Jasper | d489f8c | 2013-08-27 11:09:05 +0000 | [diff] [blame] | 881 | if (Precedence == prec::Conditional) { |
Daniel Jasper | c01897c | 2013-05-31 14:56:12 +0000 | [diff] [blame] | 882 | parseConditionalExpr(); |
| 883 | return; |
| 884 | } |
Daniel Jasper | 3618e6f | 2013-08-23 15:14:03 +0000 | [diff] [blame] | 885 | |
| 886 | // Parse unary operators, which all have a higher precedence than binary |
| 887 | // operators. |
Daniel Jasper | d489f8c | 2013-08-27 11:09:05 +0000 | [diff] [blame] | 888 | if (Precedence == PrecedenceUnaryOperator) { |
Daniel Jasper | 3618e6f | 2013-08-23 15:14:03 +0000 | [diff] [blame] | 889 | parseUnaryOperator(); |
Daniel Jasper | 29f123b | 2013-02-08 15:28:42 +0000 | [diff] [blame] | 890 | return; |
Daniel Jasper | 3618e6f | 2013-08-23 15:14:03 +0000 | [diff] [blame] | 891 | } |
Daniel Jasper | 29f123b | 2013-02-08 15:28:42 +0000 | [diff] [blame] | 892 | |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 893 | FormatToken *Start = Current; |
Daniel Jasper | d489f8c | 2013-08-27 11:09:05 +0000 | [diff] [blame] | 894 | FormatToken *LatestOperator = NULL; |
Daniel Jasper | 29f123b | 2013-02-08 15:28:42 +0000 | [diff] [blame] | 895 | |
Daniel Jasper | 237d4c1 | 2013-02-23 21:01:55 +0000 | [diff] [blame] | 896 | while (Current) { |
Daniel Jasper | 29f123b | 2013-02-08 15:28:42 +0000 | [diff] [blame] | 897 | // Consume operators with higher precedence. |
Daniel Jasper | bf71ba2 | 2013-04-08 20:33:42 +0000 | [diff] [blame] | 898 | parse(Precedence + 1); |
Daniel Jasper | 29f123b | 2013-02-08 15:28:42 +0000 | [diff] [blame] | 899 | |
Daniel Jasper | 3618e6f | 2013-08-23 15:14:03 +0000 | [diff] [blame] | 900 | int CurrentPrecedence = getCurrentPrecedence(); |
| 901 | |
| 902 | if (Current && Current->Type == TT_ObjCSelectorName && |
| 903 | Precedence == CurrentPrecedence) |
| 904 | Start = Current; |
Daniel Jasper | 237d4c1 | 2013-02-23 21:01:55 +0000 | [diff] [blame] | 905 | |
Daniel Jasper | 29f123b | 2013-02-08 15:28:42 +0000 | [diff] [blame] | 906 | // At the end of the line or when an operator with higher precedence is |
| 907 | // found, insert fake parenthesis and return. |
Daniel Jasper | ac3223e | 2013-04-10 09:49:49 +0000 | [diff] [blame] | 908 | if (Current == NULL || Current->closesScope() || |
Daniel Jasper | d489f8c | 2013-08-27 11:09:05 +0000 | [diff] [blame] | 909 | (CurrentPrecedence != -1 && CurrentPrecedence < Precedence)) { |
| 910 | if (LatestOperator) { |
| 911 | if (Precedence == PrecedenceArrowAndPeriod) { |
| 912 | LatestOperator->LastInChainOfCalls = true; |
| 913 | // Call expressions don't have a binary operator precedence. |
| 914 | addFakeParenthesis(Start, prec::Unknown); |
| 915 | } else { |
| 916 | addFakeParenthesis(Start, prec::Level(Precedence)); |
| 917 | } |
| 918 | } |
Daniel Jasper | 29f123b | 2013-02-08 15:28:42 +0000 | [diff] [blame] | 919 | return; |
| 920 | } |
| 921 | |
| 922 | // Consume scopes: (), [], <> and {} |
Daniel Jasper | ac3223e | 2013-04-10 09:49:49 +0000 | [diff] [blame] | 923 | if (Current->opensScope()) { |
| 924 | while (Current && !Current->closesScope()) { |
Daniel Jasper | 29f123b | 2013-02-08 15:28:42 +0000 | [diff] [blame] | 925 | next(); |
| 926 | parse(); |
| 927 | } |
| 928 | next(); |
| 929 | } else { |
| 930 | // Operator found. |
Daniel Jasper | 237d4c1 | 2013-02-23 21:01:55 +0000 | [diff] [blame] | 931 | if (CurrentPrecedence == Precedence) |
Daniel Jasper | d489f8c | 2013-08-27 11:09:05 +0000 | [diff] [blame] | 932 | LatestOperator = Current; |
Daniel Jasper | 29f123b | 2013-02-08 15:28:42 +0000 | [diff] [blame] | 933 | |
| 934 | next(); |
| 935 | } |
| 936 | } |
| 937 | } |
| 938 | |
| 939 | private: |
Daniel Jasper | 3618e6f | 2013-08-23 15:14:03 +0000 | [diff] [blame] | 940 | /// \brief Gets the precedence (+1) of the given token for binary operators |
| 941 | /// and other tokens that we treat like binary operators. |
| 942 | int getCurrentPrecedence() { |
| 943 | if (Current) { |
| 944 | if (Current->Type == TT_ConditionalExpr) |
Daniel Jasper | d489f8c | 2013-08-27 11:09:05 +0000 | [diff] [blame] | 945 | return prec::Conditional; |
Daniel Jasper | 3618e6f | 2013-08-23 15:14:03 +0000 | [diff] [blame] | 946 | else if (Current->is(tok::semi) || Current->Type == TT_InlineASMColon) |
Daniel Jasper | d489f8c | 2013-08-27 11:09:05 +0000 | [diff] [blame] | 947 | return 0; |
Daniel Jasper | 3618e6f | 2013-08-23 15:14:03 +0000 | [diff] [blame] | 948 | else if (Current->Type == TT_BinaryOperator || Current->is(tok::comma)) |
Daniel Jasper | d489f8c | 2013-08-27 11:09:05 +0000 | [diff] [blame] | 949 | return Current->getPrecedence(); |
Daniel Jasper | 3618e6f | 2013-08-23 15:14:03 +0000 | [diff] [blame] | 950 | else if (Current->Type == TT_ObjCSelectorName) |
Daniel Jasper | d489f8c | 2013-08-27 11:09:05 +0000 | [diff] [blame] | 951 | return prec::Assignment; |
| 952 | else if (Current->isOneOf(tok::period, tok::arrow)) |
| 953 | return PrecedenceArrowAndPeriod; |
Daniel Jasper | 3618e6f | 2013-08-23 15:14:03 +0000 | [diff] [blame] | 954 | } |
Daniel Jasper | d489f8c | 2013-08-27 11:09:05 +0000 | [diff] [blame] | 955 | return -1; |
Daniel Jasper | 3618e6f | 2013-08-23 15:14:03 +0000 | [diff] [blame] | 956 | } |
| 957 | |
Daniel Jasper | c01897c | 2013-05-31 14:56:12 +0000 | [diff] [blame] | 958 | void addFakeParenthesis(FormatToken *Start, prec::Level Precedence) { |
| 959 | Start->FakeLParens.push_back(Precedence); |
Daniel Jasper | db4813a | 2013-09-06 08:08:14 +0000 | [diff] [blame] | 960 | if (Precedence > prec::Unknown) |
| 961 | Start->StartsBinaryExpression = true; |
| 962 | if (Current) { |
Daniel Jasper | c01897c | 2013-05-31 14:56:12 +0000 | [diff] [blame] | 963 | ++Current->Previous->FakeRParens; |
Daniel Jasper | db4813a | 2013-09-06 08:08:14 +0000 | [diff] [blame] | 964 | if (Precedence > prec::Unknown) |
| 965 | Current->Previous->EndsBinaryExpression = true; |
| 966 | } |
Daniel Jasper | c01897c | 2013-05-31 14:56:12 +0000 | [diff] [blame] | 967 | } |
| 968 | |
Daniel Jasper | 3618e6f | 2013-08-23 15:14:03 +0000 | [diff] [blame] | 969 | /// \brief Parse unary operator expressions and surround them with fake |
| 970 | /// parentheses if appropriate. |
| 971 | void parseUnaryOperator() { |
Daniel Jasper | d489f8c | 2013-08-27 11:09:05 +0000 | [diff] [blame] | 972 | if (Current == NULL || Current->Type != TT_UnaryOperator) { |
| 973 | parse(PrecedenceArrowAndPeriod); |
Daniel Jasper | 3618e6f | 2013-08-23 15:14:03 +0000 | [diff] [blame] | 974 | return; |
Daniel Jasper | d489f8c | 2013-08-27 11:09:05 +0000 | [diff] [blame] | 975 | } |
Daniel Jasper | 3618e6f | 2013-08-23 15:14:03 +0000 | [diff] [blame] | 976 | |
| 977 | FormatToken *Start = Current; |
| 978 | next(); |
Daniel Jasper | d489f8c | 2013-08-27 11:09:05 +0000 | [diff] [blame] | 979 | parseUnaryOperator(); |
Daniel Jasper | 3618e6f | 2013-08-23 15:14:03 +0000 | [diff] [blame] | 980 | |
Daniel Jasper | 3618e6f | 2013-08-23 15:14:03 +0000 | [diff] [blame] | 981 | // The actual precedence doesn't matter. |
Daniel Jasper | d489f8c | 2013-08-27 11:09:05 +0000 | [diff] [blame] | 982 | addFakeParenthesis(Start, prec::Unknown); |
Daniel Jasper | 3618e6f | 2013-08-23 15:14:03 +0000 | [diff] [blame] | 983 | } |
| 984 | |
Daniel Jasper | c01897c | 2013-05-31 14:56:12 +0000 | [diff] [blame] | 985 | void parseConditionalExpr() { |
| 986 | FormatToken *Start = Current; |
Daniel Jasper | d489f8c | 2013-08-27 11:09:05 +0000 | [diff] [blame] | 987 | parse(prec::LogicalOr); |
Daniel Jasper | c01897c | 2013-05-31 14:56:12 +0000 | [diff] [blame] | 988 | if (!Current || !Current->is(tok::question)) |
| 989 | return; |
| 990 | next(); |
Daniel Jasper | d489f8c | 2013-08-27 11:09:05 +0000 | [diff] [blame] | 991 | parse(prec::LogicalOr); |
Daniel Jasper | c01897c | 2013-05-31 14:56:12 +0000 | [diff] [blame] | 992 | if (!Current || Current->Type != TT_ConditionalExpr) |
| 993 | return; |
| 994 | next(); |
| 995 | parseConditionalExpr(); |
| 996 | addFakeParenthesis(Start, prec::Conditional); |
| 997 | } |
| 998 | |
Daniel Jasper | 29f123b | 2013-02-08 15:28:42 +0000 | [diff] [blame] | 999 | void next() { |
Alexander Kornienko | d71b15b | 2013-06-17 13:19:53 +0000 | [diff] [blame] | 1000 | if (Current) |
| 1001 | Current = Current->Next; |
| 1002 | while (Current && Current->isTrailingComment()) |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 1003 | Current = Current->Next; |
Daniel Jasper | 29f123b | 2013-02-08 15:28:42 +0000 | [diff] [blame] | 1004 | } |
| 1005 | |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 1006 | FormatToken *Current; |
Daniel Jasper | 29f123b | 2013-02-08 15:28:42 +0000 | [diff] [blame] | 1007 | }; |
| 1008 | |
Craig Topper | 14e6649 | 2013-07-01 04:03:19 +0000 | [diff] [blame] | 1009 | } // end anonymous namespace |
| 1010 | |
Daniel Jasper | b77d741 | 2013-09-06 07:54:20 +0000 | [diff] [blame] | 1011 | void |
| 1012 | TokenAnnotator::setCommentLineLevels(SmallVectorImpl<AnnotatedLine *> &Lines) { |
| 1013 | if (Lines.empty()) |
| 1014 | return; |
| 1015 | |
| 1016 | const AnnotatedLine *NextNonCommentLine = NULL; |
| 1017 | for (unsigned i = Lines.size() - 1; i > 0; --i) { |
| 1018 | if (NextNonCommentLine && Lines[i]->First->is(tok::comment) && |
| 1019 | !Lines[i]->First->Next) |
| 1020 | Lines[i]->Level = NextNonCommentLine->Level; |
| 1021 | else |
| 1022 | NextNonCommentLine = |
| 1023 | Lines[i]->First->isNot(tok::r_brace) ? Lines[i] : NULL; |
| 1024 | } |
| 1025 | } |
| 1026 | |
Daniel Jasper | 8ff690a | 2013-02-06 14:22:40 +0000 | [diff] [blame] | 1027 | void TokenAnnotator::annotate(AnnotatedLine &Line) { |
Daniel Jasper | b77d741 | 2013-09-06 07:54:20 +0000 | [diff] [blame] | 1028 | setCommentLineLevels(Line.Children); |
| 1029 | for (SmallVectorImpl<AnnotatedLine *>::iterator I = Line.Children.begin(), |
| 1030 | E = Line.Children.end(); |
Daniel Jasper | 567dcf9 | 2013-09-05 09:29:45 +0000 | [diff] [blame] | 1031 | I != E; ++I) { |
| 1032 | annotate(**I); |
| 1033 | } |
Daniel Jasper | d4a03db | 2013-08-22 15:00:41 +0000 | [diff] [blame] | 1034 | AnnotatingParser Parser(Style, Line, Ident_in); |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1035 | Line.Type = Parser.parseLine(); |
| 1036 | if (Line.Type == LT_Invalid) |
| 1037 | return; |
| 1038 | |
Daniel Jasper | 29f123b | 2013-02-08 15:28:42 +0000 | [diff] [blame] | 1039 | ExpressionParser ExprParser(Line); |
| 1040 | ExprParser.parse(); |
| 1041 | |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 1042 | if (Line.First->Type == TT_ObjCMethodSpecifier) |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1043 | Line.Type = LT_ObjCMethodDecl; |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 1044 | else if (Line.First->Type == TT_ObjCDecl) |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1045 | Line.Type = LT_ObjCDecl; |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 1046 | else if (Line.First->Type == TT_ObjCProperty) |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1047 | Line.Type = LT_ObjCProperty; |
| 1048 | |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 1049 | Line.First->SpacesRequiredBefore = 1; |
| 1050 | Line.First->CanBreakBefore = Line.First->MustBreakBefore; |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1051 | } |
| 1052 | |
Daniel Jasper | 8ff690a | 2013-02-06 14:22:40 +0000 | [diff] [blame] | 1053 | void TokenAnnotator::calculateFormattingInformation(AnnotatedLine &Line) { |
Alexander Kornienko | 83a7dcd | 2013-09-10 09:38:25 +0000 | [diff] [blame] | 1054 | Line.First->TotalLength = |
| 1055 | Line.First->IsMultiline ? Style.ColumnLimit : Line.First->ColumnWidth; |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 1056 | if (!Line.First->Next) |
Daniel Jasper | 8ff690a | 2013-02-06 14:22:40 +0000 | [diff] [blame] | 1057 | return; |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 1058 | FormatToken *Current = Line.First->Next; |
Daniel Jasper | 8ff690a | 2013-02-06 14:22:40 +0000 | [diff] [blame] | 1059 | while (Current != NULL) { |
Daniel Jasper | 729a743 | 2013-02-11 12:36:37 +0000 | [diff] [blame] | 1060 | if (Current->Type == TT_LineComment) |
| 1061 | Current->SpacesRequiredBefore = Style.SpacesBeforeTrailingComments; |
Alexander Kornienko | b18c258 | 2013-10-11 21:43:05 +0000 | [diff] [blame] | 1062 | else if (Current->SpacesRequiredBefore == 0 && |
| 1063 | spaceRequiredBefore(Line, *Current)) |
| 1064 | Current->SpacesRequiredBefore = 1; |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1065 | |
Daniel Jasper | ebaa171 | 2013-09-17 09:52:48 +0000 | [diff] [blame] | 1066 | Current->MustBreakBefore = |
| 1067 | Current->MustBreakBefore || mustBreakBefore(Line, *Current); |
| 1068 | |
Daniel Jasper | 8ff690a | 2013-02-06 14:22:40 +0000 | [diff] [blame] | 1069 | Current->CanBreakBefore = |
| 1070 | Current->MustBreakBefore || canBreakBefore(Line, *Current); |
Daniel Jasper | 567dcf9 | 2013-09-05 09:29:45 +0000 | [diff] [blame] | 1071 | if (Current->MustBreakBefore || !Current->Children.empty() || |
Alexander Kornienko | 83a7dcd | 2013-09-10 09:38:25 +0000 | [diff] [blame] | 1072 | Current->IsMultiline) |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 1073 | Current->TotalLength = Current->Previous->TotalLength + Style.ColumnLimit; |
Daniel Jasper | 8ff690a | 2013-02-06 14:22:40 +0000 | [diff] [blame] | 1074 | else |
Daniel Jasper | 2a409b6 | 2013-07-08 14:34:09 +0000 | [diff] [blame] | 1075 | Current->TotalLength = Current->Previous->TotalLength + |
Alexander Kornienko | 83a7dcd | 2013-09-10 09:38:25 +0000 | [diff] [blame] | 1076 | Current->ColumnWidth + |
Daniel Jasper | 2a409b6 | 2013-07-08 14:34:09 +0000 | [diff] [blame] | 1077 | Current->SpacesRequiredBefore; |
Daniel Jasper | 8ff690a | 2013-02-06 14:22:40 +0000 | [diff] [blame] | 1078 | // FIXME: Only calculate this if CanBreakBefore is true once static |
| 1079 | // initializers etc. are sorted out. |
| 1080 | // FIXME: Move magic numbers to a better place. |
| 1081 | Current->SplitPenalty = |
| 1082 | 20 * Current->BindingStrength + splitPenalty(Line, *Current); |
| 1083 | |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 1084 | Current = Current->Next; |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1085 | } |
Daniel Jasper | bf71ba2 | 2013-04-08 20:33:42 +0000 | [diff] [blame] | 1086 | |
Manuel Klimek | e573c3f | 2013-05-22 12:51:29 +0000 | [diff] [blame] | 1087 | calculateUnbreakableTailLengths(Line); |
Daniel Jasper | d4a03db | 2013-08-22 15:00:41 +0000 | [diff] [blame] | 1088 | for (Current = Line.First; Current != NULL; Current = Current->Next) { |
| 1089 | if (Current->Role) |
| 1090 | Current->Role->precomputeFormattingInfos(Current); |
| 1091 | } |
| 1092 | |
Daniel Jasper | 567dcf9 | 2013-09-05 09:29:45 +0000 | [diff] [blame] | 1093 | DEBUG({ printDebugInfo(Line); }); |
| 1094 | |
Daniel Jasper | b77d741 | 2013-09-06 07:54:20 +0000 | [diff] [blame] | 1095 | for (SmallVectorImpl<AnnotatedLine *>::iterator I = Line.Children.begin(), |
| 1096 | E = Line.Children.end(); |
Daniel Jasper | 567dcf9 | 2013-09-05 09:29:45 +0000 | [diff] [blame] | 1097 | I != E; ++I) { |
| 1098 | calculateFormattingInformation(**I); |
| 1099 | } |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1100 | } |
| 1101 | |
Manuel Klimek | e573c3f | 2013-05-22 12:51:29 +0000 | [diff] [blame] | 1102 | void TokenAnnotator::calculateUnbreakableTailLengths(AnnotatedLine &Line) { |
| 1103 | unsigned UnbreakableTailLength = 0; |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 1104 | FormatToken *Current = Line.Last; |
Manuel Klimek | e573c3f | 2013-05-22 12:51:29 +0000 | [diff] [blame] | 1105 | while (Current != NULL) { |
| 1106 | Current->UnbreakableTailLength = UnbreakableTailLength; |
| 1107 | if (Current->CanBreakBefore || |
| 1108 | Current->isOneOf(tok::comment, tok::string_literal)) { |
| 1109 | UnbreakableTailLength = 0; |
| 1110 | } else { |
| 1111 | UnbreakableTailLength += |
Alexander Kornienko | 83a7dcd | 2013-09-10 09:38:25 +0000 | [diff] [blame] | 1112 | Current->ColumnWidth + Current->SpacesRequiredBefore; |
Manuel Klimek | e573c3f | 2013-05-22 12:51:29 +0000 | [diff] [blame] | 1113 | } |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 1114 | Current = Current->Previous; |
Manuel Klimek | e573c3f | 2013-05-22 12:51:29 +0000 | [diff] [blame] | 1115 | } |
| 1116 | } |
| 1117 | |
Daniel Jasper | 8ff690a | 2013-02-06 14:22:40 +0000 | [diff] [blame] | 1118 | unsigned TokenAnnotator::splitPenalty(const AnnotatedLine &Line, |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 1119 | const FormatToken &Tok) { |
| 1120 | const FormatToken &Left = *Tok.Previous; |
| 1121 | const FormatToken &Right = Tok; |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1122 | |
Daniel Jasper | 5ad390d | 2013-05-28 11:30:49 +0000 | [diff] [blame] | 1123 | if (Left.is(tok::semi)) |
| 1124 | return 0; |
| 1125 | if (Left.is(tok::comma)) |
| 1126 | return 1; |
Daniel Jasper | 011c35d | 2013-07-12 11:19:37 +0000 | [diff] [blame] | 1127 | if (Right.is(tok::l_square)) |
| 1128 | return 150; |
Daniel Jasper | 5ad390d | 2013-05-28 11:30:49 +0000 | [diff] [blame] | 1129 | |
Daniel Jasper | 6561f6a | 2013-07-09 07:43:55 +0000 | [diff] [blame] | 1130 | if (Right.Type == TT_StartOfName || Right.is(tok::kw_operator)) { |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 1131 | if (Line.First->is(tok::kw_for) && Right.PartOfMultiVariableDeclStmt) |
Daniel Jasper | 3c08a81 | 2013-02-24 18:54:32 +0000 | [diff] [blame] | 1132 | return 3; |
Daniel Jasper | c18cff3 | 2013-07-11 12:34:23 +0000 | [diff] [blame] | 1133 | if (Left.Type == TT_StartOfName) |
| 1134 | return 20; |
Daniel Jasper | 92495a8 | 2013-08-19 10:16:18 +0000 | [diff] [blame] | 1135 | if (Line.MightBeFunctionDecl && Right.BindingStrength == 1) |
Daniel Jasper | 3c08a81 | 2013-02-24 18:54:32 +0000 | [diff] [blame] | 1136 | // FIXME: Clean up hack of using BindingStrength to find top-level names. |
| 1137 | return Style.PenaltyReturnTypeOnItsOwnLine; |
Daniel Jasper | 92495a8 | 2013-08-19 10:16:18 +0000 | [diff] [blame] | 1138 | return 200; |
Daniel Jasper | 3c08a81 | 2013-02-24 18:54:32 +0000 | [diff] [blame] | 1139 | } |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1140 | if (Left.is(tok::equal) && Right.is(tok::l_brace)) |
| 1141 | return 150; |
Daniel Jasper | 198c8bf | 2013-07-05 07:58:34 +0000 | [diff] [blame] | 1142 | if (Left.Type == TT_CastRParen) |
| 1143 | return 100; |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1144 | if (Left.is(tok::coloncolon)) |
| 1145 | return 500; |
Daniel Jasper | 6b119d6 | 2013-04-05 17:22:09 +0000 | [diff] [blame] | 1146 | if (Left.isOneOf(tok::kw_class, tok::kw_struct)) |
| 1147 | return 5000; |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1148 | |
Daniel Jasper | 6cabab4 | 2013-02-14 08:42:54 +0000 | [diff] [blame] | 1149 | if (Left.Type == TT_RangeBasedForLoopColon || |
| 1150 | Left.Type == TT_InheritanceColon) |
Daniel Jasper | 84a1a63 | 2013-02-26 13:18:08 +0000 | [diff] [blame] | 1151 | return 2; |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1152 | |
Daniel Jasper | d3fef0f | 2013-08-27 14:24:43 +0000 | [diff] [blame] | 1153 | if (Right.isMemberAccess()) { |
Daniel Jasper | 2f0a020 | 2013-09-06 08:54:24 +0000 | [diff] [blame] | 1154 | if (Left.isOneOf(tok::r_paren, tok::r_square) && Left.MatchingParen && |
| 1155 | Left.MatchingParen->ParameterCount > 0) |
Daniel Jasper | 518ee34 | 2013-02-26 13:59:14 +0000 | [diff] [blame] | 1156 | return 20; // Should be smaller than breaking at a nested comma. |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1157 | return 150; |
| 1158 | } |
| 1159 | |
Daniel Jasper | 20a0f8c | 2013-07-11 21:02:56 +0000 | [diff] [blame] | 1160 | // Breaking before a trailing 'const' or not-function-like annotation is bad. |
Daniel Jasper | aa9e7b1 | 2013-08-01 13:46:58 +0000 | [diff] [blame] | 1161 | if (Left.is(tok::r_paren) && Line.Type != LT_ObjCProperty && |
Daniel Jasper | 20a0f8c | 2013-07-11 21:02:56 +0000 | [diff] [blame] | 1162 | (Right.is(tok::kw_const) || (Right.is(tok::identifier) && Right.Next && |
| 1163 | Right.Next->isNot(tok::l_paren)))) |
Daniel Jasper | 53eb05a | 2013-10-18 16:34:40 +0000 | [diff] [blame] | 1164 | return 100; |
Daniel Jasper | 5ad72bb | 2013-05-22 08:28:26 +0000 | [diff] [blame] | 1165 | |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1166 | // In for-loops, prefer breaking at ',' and ';'. |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 1167 | if (Line.First->is(tok::kw_for) && Left.is(tok::equal)) |
Daniel Jasper | 7d81281 | 2013-02-21 15:00:29 +0000 | [diff] [blame] | 1168 | return 4; |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1169 | |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1170 | // In Objective-C method expressions, prefer breaking before "param:" over |
| 1171 | // breaking after it. |
Daniel Jasper | 63d7ced | 2013-02-05 10:07:47 +0000 | [diff] [blame] | 1172 | if (Right.Type == TT_ObjCSelectorName) |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1173 | return 0; |
Daniel Jasper | 63d7ced | 2013-02-05 10:07:47 +0000 | [diff] [blame] | 1174 | if (Left.is(tok::colon) && Left.Type == TT_ObjCMethodExpr) |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1175 | return 20; |
| 1176 | |
Daniel Jasper | 1407bee | 2013-04-11 14:29:13 +0000 | [diff] [blame] | 1177 | if (Left.is(tok::l_paren) && Line.MightBeFunctionDecl) |
| 1178 | return 100; |
Daniel Jasper | ac3223e | 2013-04-10 09:49:49 +0000 | [diff] [blame] | 1179 | if (Left.opensScope()) |
Daniel Jasper | e60084d | 2013-08-13 06:50:04 +0000 | [diff] [blame] | 1180 | return Left.ParameterCount > 1 ? prec::Comma : 19; |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1181 | |
Daniel Jasper | 4e8a7b4 | 2013-02-06 21:04:05 +0000 | [diff] [blame] | 1182 | if (Right.is(tok::lessless)) { |
| 1183 | if (Left.is(tok::string_literal)) { |
Alexander Kornienko | 0089510 | 2013-06-05 14:09:10 +0000 | [diff] [blame] | 1184 | StringRef Content = Left.TokenText; |
Daniel Jasper | 2037698 | 2013-09-29 12:02:57 +0000 | [diff] [blame] | 1185 | if (Content.startswith("\"")) |
| 1186 | Content = Content.drop_front(1); |
| 1187 | if (Content.endswith("\"")) |
| 1188 | Content = Content.drop_back(1); |
| 1189 | Content = Content.trim(); |
Daniel Jasper | bfa1edd | 2013-03-14 14:00:17 +0000 | [diff] [blame] | 1190 | if (Content.size() > 1 && |
| 1191 | (Content.back() == ':' || Content.back() == '=')) |
Daniel Jasper | 9637dda | 2013-07-15 14:33:14 +0000 | [diff] [blame] | 1192 | return 25; |
Daniel Jasper | 4e8a7b4 | 2013-02-06 21:04:05 +0000 | [diff] [blame] | 1193 | } |
Daniel Jasper | 0c36878 | 2013-07-15 15:04:42 +0000 | [diff] [blame] | 1194 | return 1; // Breaking at a << is really cheap. |
Daniel Jasper | 4e8a7b4 | 2013-02-06 21:04:05 +0000 | [diff] [blame] | 1195 | } |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1196 | if (Left.Type == TT_ConditionalExpr) |
Daniel Jasper | 518ee34 | 2013-02-26 13:59:14 +0000 | [diff] [blame] | 1197 | return prec::Conditional; |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 1198 | prec::Level Level = Left.getPrecedence(); |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1199 | |
| 1200 | if (Level != prec::Unknown) |
| 1201 | return Level; |
Daniel Jasper | 2484971 | 2013-03-01 16:48:32 +0000 | [diff] [blame] | 1202 | |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1203 | return 3; |
| 1204 | } |
| 1205 | |
Daniel Jasper | 8ff690a | 2013-02-06 14:22:40 +0000 | [diff] [blame] | 1206 | bool TokenAnnotator::spaceRequiredBetween(const AnnotatedLine &Line, |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 1207 | const FormatToken &Left, |
| 1208 | const FormatToken &Right) { |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1209 | if (Right.is(tok::hashhash)) |
| 1210 | return Left.is(tok::hash); |
Alexander Kornienko | e74de28 | 2013-03-13 14:41:29 +0000 | [diff] [blame] | 1211 | if (Left.isOneOf(tok::hashhash, tok::hash)) |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1212 | return Right.is(tok::hash); |
Daniel Jasper | 7df56bf | 2013-08-20 12:36:34 +0000 | [diff] [blame] | 1213 | if (Left.is(tok::l_paren) && Right.is(tok::r_paren)) |
| 1214 | return Style.SpaceInEmptyParentheses; |
| 1215 | if (Left.is(tok::l_paren) || Right.is(tok::r_paren)) |
Daniel Jasper | 34f3d05 | 2013-08-21 08:39:01 +0000 | [diff] [blame] | 1216 | return (Right.Type == TT_CastRParen || |
| 1217 | (Left.MatchingParen && Left.MatchingParen->Type == TT_CastRParen)) |
Daniel Jasper | 7df56bf | 2013-08-20 12:36:34 +0000 | [diff] [blame] | 1218 | ? Style.SpacesInCStyleCastParentheses |
| 1219 | : Style.SpacesInParentheses; |
| 1220 | if (Right.isOneOf(tok::semi, tok::comma)) |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1221 | return false; |
| 1222 | if (Right.is(tok::less) && |
| 1223 | (Left.is(tok::kw_template) || |
| 1224 | (Line.Type == LT_ObjCDecl && Style.ObjCSpaceBeforeProtocolList))) |
| 1225 | return true; |
| 1226 | if (Left.is(tok::arrow) || Right.is(tok::arrow)) |
| 1227 | return false; |
Alexander Kornienko | e74de28 | 2013-03-13 14:41:29 +0000 | [diff] [blame] | 1228 | if (Left.isOneOf(tok::exclaim, tok::tilde)) |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1229 | return false; |
| 1230 | if (Left.is(tok::at) && |
Alexander Kornienko | e74de28 | 2013-03-13 14:41:29 +0000 | [diff] [blame] | 1231 | Right.isOneOf(tok::identifier, tok::string_literal, tok::char_constant, |
| 1232 | tok::numeric_constant, tok::l_paren, tok::l_brace, |
| 1233 | tok::kw_true, tok::kw_false)) |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1234 | return false; |
| 1235 | if (Left.is(tok::coloncolon)) |
| 1236 | return false; |
| 1237 | if (Right.is(tok::coloncolon)) |
Daniel Jasper | 78a4e61 | 2013-10-12 05:16:06 +0000 | [diff] [blame] | 1238 | return (Left.is(tok::less) && Style.Standard == FormatStyle::LS_Cpp03) || |
| 1239 | !Left.isOneOf(tok::identifier, tok::greater, tok::l_paren, |
| 1240 | tok::r_paren, tok::less); |
Alexander Kornienko | e74de28 | 2013-03-13 14:41:29 +0000 | [diff] [blame] | 1241 | if (Left.is(tok::less) || Right.isOneOf(tok::greater, tok::less)) |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1242 | return false; |
Daniel Jasper | c47d7f1 | 2013-07-01 09:47:25 +0000 | [diff] [blame] | 1243 | if (Right.is(tok::ellipsis)) |
Daniel Jasper | b3c887d | 2013-10-20 16:56:16 +0000 | [diff] [blame] | 1244 | return Left.Tok.isLiteral(); |
Manuel Klimek | 31e44f7 | 2013-09-04 08:20:47 +0000 | [diff] [blame] | 1245 | if (Left.is(tok::l_square) && Right.is(tok::amp)) |
| 1246 | return false; |
Alexander Kornienko | 3fd9ccd | 2013-03-12 16:28:18 +0000 | [diff] [blame] | 1247 | if (Right.Type == TT_PointerOrReference) |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 1248 | return Left.Tok.isLiteral() || |
Alexander Kornienko | 3fd9ccd | 2013-03-12 16:28:18 +0000 | [diff] [blame] | 1249 | ((Left.Type != TT_PointerOrReference) && Left.isNot(tok::l_paren) && |
| 1250 | !Style.PointerBindsToType); |
Daniel Jasper | 3ff4a2f | 2013-05-28 15:27:10 +0000 | [diff] [blame] | 1251 | if (Right.Type == TT_FunctionTypeLParen && Left.isNot(tok::l_paren) && |
Daniel Jasper | 395228f | 2013-05-08 14:58:20 +0000 | [diff] [blame] | 1252 | (Left.Type != TT_PointerOrReference || Style.PointerBindsToType)) |
| 1253 | return true; |
Alexander Kornienko | 3fd9ccd | 2013-03-12 16:28:18 +0000 | [diff] [blame] | 1254 | if (Left.Type == TT_PointerOrReference) |
Daniel Jasper | 3a1847e | 2013-07-01 09:34:09 +0000 | [diff] [blame] | 1255 | return Right.Tok.isLiteral() || Right.Type == TT_BlockComment || |
Daniel Jasper | 9322aae | 2013-03-20 09:53:18 +0000 | [diff] [blame] | 1256 | ((Right.Type != TT_PointerOrReference) && |
Daniel Jasper | 81d2d38 | 2013-04-01 17:13:26 +0000 | [diff] [blame] | 1257 | Right.isNot(tok::l_paren) && Style.PointerBindsToType && |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 1258 | Left.Previous && |
| 1259 | !Left.Previous->isOneOf(tok::l_paren, tok::coloncolon)); |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1260 | if (Right.is(tok::star) && Left.is(tok::l_paren)) |
| 1261 | return false; |
Nico Weber | 051860e | 2013-02-10 02:08:05 +0000 | [diff] [blame] | 1262 | if (Left.is(tok::l_square)) |
Daniel Jasper | a07aa66 | 2013-10-22 15:30:28 +0000 | [diff] [blame] | 1263 | return Left.Type == TT_ArrayInitializerLSquare && |
| 1264 | Right.isNot(tok::r_square); |
Nico Weber | 051860e | 2013-02-10 02:08:05 +0000 | [diff] [blame] | 1265 | if (Right.is(tok::r_square)) |
Daniel Jasper | a07aa66 | 2013-10-22 15:30:28 +0000 | [diff] [blame] | 1266 | return Right.MatchingParen && |
| 1267 | Right.MatchingParen->Type == TT_ArrayInitializerLSquare; |
Daniel Jasper | ec17226 | 2013-08-30 10:36:58 +0000 | [diff] [blame] | 1268 | if (Right.is(tok::l_square) && Right.Type != TT_ObjCMethodExpr && |
Daniel Jasper | 567dcf9 | 2013-09-05 09:29:45 +0000 | [diff] [blame] | 1269 | Right.Type != TT_LambdaLSquare && Left.isNot(tok::numeric_constant)) |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1270 | return false; |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1271 | if (Left.is(tok::colon)) |
| 1272 | return Left.Type != TT_ObjCMethodExpr; |
| 1273 | if (Right.is(tok::colon)) |
Daniel Jasper | ab3ce59 | 2013-08-01 22:05:00 +0000 | [diff] [blame] | 1274 | return Right.Type != TT_ObjCMethodExpr && !Left.is(tok::question); |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1275 | if (Right.is(tok::l_paren)) { |
Daniel Jasper | e0fa4c5 | 2013-07-17 20:25:02 +0000 | [diff] [blame] | 1276 | if (Left.is(tok::r_paren) && Left.MatchingParen && |
| 1277 | Left.MatchingParen->Previous && |
| 1278 | Left.MatchingParen->Previous->is(tok::kw___attribute)) |
| 1279 | return true; |
Alexander Kornienko | e74de28 | 2013-03-13 14:41:29 +0000 | [diff] [blame] | 1280 | return Line.Type == LT_ObjCDecl || |
Daniel Jasper | 34f3d05 | 2013-08-21 08:39:01 +0000 | [diff] [blame] | 1281 | Left.isOneOf(tok::kw_return, tok::kw_new, tok::kw_delete, |
| 1282 | tok::semi) || |
| 1283 | (Style.SpaceAfterControlStatementKeyword && |
| 1284 | Left.isOneOf(tok::kw_if, tok::kw_for, tok::kw_while, tok::kw_switch, |
| 1285 | tok::kw_catch)); |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1286 | } |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 1287 | if (Left.is(tok::at) && Right.Tok.getObjCKeywordID() != tok::objc_not_keyword) |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1288 | return false; |
| 1289 | if (Left.is(tok::l_brace) && Right.is(tok::r_brace)) |
Daniel Jasper | 567dcf9 | 2013-09-05 09:29:45 +0000 | [diff] [blame] | 1290 | return !Left.Children.empty(); // No spaces in "{}". |
Daniel Jasper | 2424eef | 2013-05-23 10:15:45 +0000 | [diff] [blame] | 1291 | if (Left.is(tok::l_brace) || Right.is(tok::r_brace)) |
Daniel Jasper | b5dc3f4 | 2013-07-16 18:22:10 +0000 | [diff] [blame] | 1292 | return !Style.Cpp11BracedListStyle; |
Daniel Jasper | 1bee073 | 2013-05-23 18:05:18 +0000 | [diff] [blame] | 1293 | if (Right.Type == TT_UnaryOperator) |
| 1294 | return !Left.isOneOf(tok::l_paren, tok::l_square, tok::at) && |
| 1295 | (Left.isNot(tok::colon) || Left.Type != TT_ObjCMethodExpr); |
Daniel Jasper | ce93356 | 2013-05-23 21:35:49 +0000 | [diff] [blame] | 1296 | if (Left.isOneOf(tok::identifier, tok::greater, tok::r_square) && |
Manuel Klimek | 31e44f7 | 2013-09-04 08:20:47 +0000 | [diff] [blame] | 1297 | Right.is(tok::l_brace) && Right.getNextNonComment() && |
| 1298 | Right.BlockKind != BK_Block) |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1299 | return false; |
Daniel Jasper | 5ad390d | 2013-05-28 11:30:49 +0000 | [diff] [blame] | 1300 | if (Left.is(tok::period) || Right.is(tok::period)) |
| 1301 | return false; |
Nico Weber | 861576b | 2013-06-26 00:15:19 +0000 | [diff] [blame] | 1302 | if (Left.Type == TT_BlockComment && Left.TokenText.endswith("=*/")) |
| 1303 | return false; |
Alexander Kornienko | daa07e9 | 2013-09-10 13:41:43 +0000 | [diff] [blame] | 1304 | if (Right.is(tok::hash) && Left.is(tok::identifier) && Left.TokenText == "L") |
| 1305 | return false; |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1306 | return true; |
| 1307 | } |
| 1308 | |
Daniel Jasper | 8ff690a | 2013-02-06 14:22:40 +0000 | [diff] [blame] | 1309 | bool TokenAnnotator::spaceRequiredBefore(const AnnotatedLine &Line, |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 1310 | const FormatToken &Tok) { |
| 1311 | if (Tok.Tok.getIdentifierInfo() && Tok.Previous->Tok.getIdentifierInfo()) |
Daniel Jasper | 2b4c924 | 2013-02-11 08:01:18 +0000 | [diff] [blame] | 1312 | return true; // Never ever merge two identifiers. |
Daniel Jasper | 1d82b1a | 2013-10-11 19:45:02 +0000 | [diff] [blame] | 1313 | if (Tok.Previous->Type == TT_ImplicitStringLiteral) |
| 1314 | return Tok.WhitespaceRange.getBegin() != Tok.WhitespaceRange.getEnd(); |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1315 | if (Line.Type == LT_ObjCMethodDecl) { |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 1316 | if (Tok.Previous->Type == TT_ObjCMethodSpecifier) |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1317 | return true; |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 1318 | if (Tok.Previous->is(tok::r_paren) && Tok.is(tok::identifier)) |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1319 | // Don't space between ')' and <id> |
| 1320 | return false; |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1321 | } |
| 1322 | if (Line.Type == LT_ObjCProperty && |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 1323 | (Tok.is(tok::equal) || Tok.Previous->is(tok::equal))) |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1324 | return false; |
| 1325 | |
Daniel Jasper | 2ca3741 | 2013-07-09 14:36:48 +0000 | [diff] [blame] | 1326 | if (Tok.Type == TT_TrailingReturnArrow || |
| 1327 | Tok.Previous->Type == TT_TrailingReturnArrow) |
| 1328 | return true; |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 1329 | if (Tok.Previous->is(tok::comma)) |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1330 | return true; |
Daniel Jasper | 9c3c7b3 | 2013-02-28 13:40:17 +0000 | [diff] [blame] | 1331 | if (Tok.is(tok::comma)) |
| 1332 | return false; |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1333 | if (Tok.Type == TT_CtorInitializerColon || Tok.Type == TT_ObjCBlockLParen) |
| 1334 | return true; |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 1335 | if (Tok.Previous->Tok.is(tok::kw_operator)) |
Daniel Jasper | 2b4c924 | 2013-02-11 08:01:18 +0000 | [diff] [blame] | 1336 | return false; |
| 1337 | if (Tok.Type == TT_OverloadedOperatorLParen) |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1338 | return false; |
| 1339 | if (Tok.is(tok::colon)) |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 1340 | return !Line.First->isOneOf(tok::kw_case, tok::kw_default) && |
Daniel Jasper | ab3ce59 | 2013-08-01 22:05:00 +0000 | [diff] [blame] | 1341 | Tok.getNextNonComment() != NULL && Tok.Type != TT_ObjCMethodExpr && |
| 1342 | !Tok.Previous->is(tok::question); |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 1343 | if (Tok.Previous->Type == TT_UnaryOperator || |
| 1344 | Tok.Previous->Type == TT_CastRParen) |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1345 | return false; |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 1346 | if (Tok.Previous->is(tok::greater) && Tok.is(tok::greater)) { |
Daniel Jasper | 29f123b | 2013-02-08 15:28:42 +0000 | [diff] [blame] | 1347 | return Tok.Type == TT_TemplateCloser && |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 1348 | Tok.Previous->Type == TT_TemplateCloser && |
Daniel Jasper | 29f123b | 2013-02-08 15:28:42 +0000 | [diff] [blame] | 1349 | Style.Standard != FormatStyle::LS_Cpp11; |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1350 | } |
Alexander Kornienko | 54a38bd | 2013-03-20 16:41:56 +0000 | [diff] [blame] | 1351 | if (Tok.isOneOf(tok::arrowstar, tok::periodstar) || |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 1352 | Tok.Previous->isOneOf(tok::arrowstar, tok::periodstar)) |
Daniel Jasper | 9c3c7b3 | 2013-02-28 13:40:17 +0000 | [diff] [blame] | 1353 | return false; |
Daniel Jasper | 9b4de85 | 2013-09-25 15:15:02 +0000 | [diff] [blame] | 1354 | if (!Style.SpaceBeforeAssignmentOperators && |
| 1355 | Tok.getPrecedence() == prec::Assignment) |
| 1356 | return false; |
Daniel Jasper | 1dc6f74 | 2013-08-07 16:29:23 +0000 | [diff] [blame] | 1357 | if ((Tok.Type == TT_BinaryOperator && !Tok.Previous->is(tok::l_paren)) || |
| 1358 | Tok.Previous->Type == TT_BinaryOperator) |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1359 | return true; |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 1360 | if (Tok.Previous->Type == TT_TemplateCloser && Tok.is(tok::l_paren)) |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1361 | return false; |
Daniel Jasper | a4dd982 | 2013-08-28 08:24:04 +0000 | [diff] [blame] | 1362 | if (Tok.is(tok::less) && Tok.Previous->isNot(tok::l_paren) && |
| 1363 | Line.First->is(tok::hash)) |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1364 | return true; |
| 1365 | if (Tok.Type == TT_TrailingUnaryOperator) |
| 1366 | return false; |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 1367 | return spaceRequiredBetween(Line, *Tok.Previous, Tok); |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1368 | } |
| 1369 | |
Daniel Jasper | ebaa171 | 2013-09-17 09:52:48 +0000 | [diff] [blame] | 1370 | bool TokenAnnotator::mustBreakBefore(const AnnotatedLine &Line, |
| 1371 | const FormatToken &Right) { |
| 1372 | if (Right.is(tok::comment)) { |
| 1373 | return Right.NewlinesBefore > 0; |
| 1374 | } else if (Right.Previous->isTrailingComment() || |
| 1375 | (Right.is(tok::string_literal) && |
| 1376 | Right.Previous->is(tok::string_literal))) { |
| 1377 | return true; |
| 1378 | } else if (Right.Previous->IsUnterminatedLiteral) { |
| 1379 | return true; |
| 1380 | } else if (Right.is(tok::lessless) && Right.Next && |
| 1381 | Right.Previous->is(tok::string_literal) && |
| 1382 | Right.Next->is(tok::string_literal)) { |
| 1383 | return true; |
| 1384 | } else if (Right.Previous->ClosesTemplateDeclaration && |
| 1385 | Right.Previous->MatchingParen && |
| 1386 | Right.Previous->MatchingParen->BindingStrength == 1 && |
| 1387 | Style.AlwaysBreakTemplateDeclarations) { |
| 1388 | // FIXME: Fix horrible hack of using BindingStrength to find top-level <>. |
| 1389 | return true; |
| 1390 | } else if (Right.Type == TT_CtorInitializerComma && |
Daniel Jasper | 19ccb12 | 2013-10-08 05:11:18 +0000 | [diff] [blame] | 1391 | Style.BreakConstructorInitializersBeforeComma && |
| 1392 | !Style.ConstructorInitializerAllOnOneLineOrOnePerLine) { |
Daniel Jasper | ebaa171 | 2013-09-17 09:52:48 +0000 | [diff] [blame] | 1393 | return true; |
| 1394 | } else if (Right.Previous->BlockKind == BK_Block && |
Alexander Kornienko | 01fe9f9 | 2013-10-10 13:36:20 +0000 | [diff] [blame] | 1395 | Right.Previous->isNot(tok::r_brace) && Right.isNot(tok::r_brace)) { |
Daniel Jasper | ebaa171 | 2013-09-17 09:52:48 +0000 | [diff] [blame] | 1396 | return true; |
| 1397 | } else if (Right.is(tok::l_brace) && (Right.BlockKind == BK_Block)) { |
| 1398 | return Style.BreakBeforeBraces == FormatStyle::BS_Allman; |
| 1399 | } |
| 1400 | return false; |
| 1401 | } |
| 1402 | |
Daniel Jasper | 8ff690a | 2013-02-06 14:22:40 +0000 | [diff] [blame] | 1403 | bool TokenAnnotator::canBreakBefore(const AnnotatedLine &Line, |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 1404 | const FormatToken &Right) { |
| 1405 | const FormatToken &Left = *Right.Previous; |
Daniel Jasper | 6561f6a | 2013-07-09 07:43:55 +0000 | [diff] [blame] | 1406 | if (Right.Type == TT_StartOfName || Right.is(tok::kw_operator)) |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1407 | return true; |
Nico Weber | f2ff812 | 2013-05-26 05:39:26 +0000 | [diff] [blame] | 1408 | if (Right.is(tok::colon) && |
Daniel Jasper | 3c6aea7 | 2013-10-24 10:31:50 +0000 | [diff] [blame^] | 1409 | (Right.Type == TT_DictLiteral || Right.Type == TT_ObjCMethodExpr)) |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1410 | return false; |
Nico Weber | f2ff812 | 2013-05-26 05:39:26 +0000 | [diff] [blame] | 1411 | if (Left.is(tok::colon) && |
Daniel Jasper | 3c6aea7 | 2013-10-24 10:31:50 +0000 | [diff] [blame^] | 1412 | (Left.Type == TT_DictLiteral || Left.Type == TT_ObjCMethodExpr)) |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1413 | return true; |
Daniel Jasper | 63d7ced | 2013-02-05 10:07:47 +0000 | [diff] [blame] | 1414 | if (Right.Type == TT_ObjCSelectorName) |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1415 | return true; |
Daniel Jasper | aa9e7b1 | 2013-08-01 13:46:58 +0000 | [diff] [blame] | 1416 | if (Left.is(tok::r_paren) && Line.Type == LT_ObjCProperty) |
| 1417 | return true; |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1418 | if (Left.ClosesTemplateDeclaration) |
| 1419 | return true; |
Daniel Jasper | ab3ce59 | 2013-08-01 22:05:00 +0000 | [diff] [blame] | 1420 | if ((Right.Type == TT_ConditionalExpr && |
| 1421 | !(Right.is(tok::colon) && Left.is(tok::question))) || |
| 1422 | Right.is(tok::question)) |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1423 | return true; |
Daniel Jasper | 6cabab4 | 2013-02-14 08:42:54 +0000 | [diff] [blame] | 1424 | if (Right.Type == TT_RangeBasedForLoopColon || |
Daniel Jasper | c476ea9 | 2013-08-28 07:27:35 +0000 | [diff] [blame] | 1425 | Right.Type == TT_OverloadedOperatorLParen || |
| 1426 | Right.Type == TT_OverloadedOperator) |
Daniel Jasper | 6cabab4 | 2013-02-14 08:42:54 +0000 | [diff] [blame] | 1427 | return false; |
Daniel Jasper | c194c95 | 2013-05-06 06:45:09 +0000 | [diff] [blame] | 1428 | if (Left.Type == TT_RangeBasedForLoopColon) |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1429 | return true; |
Daniel Jasper | 7d81281 | 2013-02-21 15:00:29 +0000 | [diff] [blame] | 1430 | if (Right.Type == TT_RangeBasedForLoopColon) |
| 1431 | return false; |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1432 | if (Left.Type == TT_PointerOrReference || Left.Type == TT_TemplateCloser || |
| 1433 | Left.Type == TT_UnaryOperator || Left.Type == TT_ConditionalExpr || |
Alexander Kornienko | e74de28 | 2013-03-13 14:41:29 +0000 | [diff] [blame] | 1434 | Left.isOneOf(tok::question, tok::kw_operator)) |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1435 | return false; |
| 1436 | if (Left.is(tok::equal) && Line.Type == LT_VirtualFunctionDecl) |
| 1437 | return false; |
Daniel Jasper | 198c8bf | 2013-07-05 07:58:34 +0000 | [diff] [blame] | 1438 | if (Left.Previous) { |
| 1439 | if (Left.is(tok::l_paren) && Right.is(tok::l_paren) && |
| 1440 | Left.Previous->is(tok::kw___attribute)) |
| 1441 | return false; |
Daniel Jasper | 2ca3741 | 2013-07-09 14:36:48 +0000 | [diff] [blame] | 1442 | if (Left.is(tok::l_paren) && (Left.Previous->Type == TT_BinaryOperator || |
Daniel Jasper | 5e2169f | 2013-07-18 14:46:07 +0000 | [diff] [blame] | 1443 | Left.Previous->Type == TT_CastRParen)) |
Daniel Jasper | 198c8bf | 2013-07-05 07:58:34 +0000 | [diff] [blame] | 1444 | return false; |
| 1445 | } |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1446 | |
Daniel Jasper | 65d2c38 | 2013-06-06 16:08:57 +0000 | [diff] [blame] | 1447 | if (Right.isTrailingComment()) |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1448 | // We rely on MustBreakBefore being set correctly here as we should not |
| 1449 | // change the "binding" behavior of a comment. |
| 1450 | return false; |
| 1451 | |
Daniel Jasper | 567dcf9 | 2013-09-05 09:29:45 +0000 | [diff] [blame] | 1452 | if (Right.is(tok::r_paren) || Right.Type == TT_TemplateCloser) |
| 1453 | return false; |
| 1454 | |
Daniel Jasper | 5ad72bb | 2013-05-22 08:28:26 +0000 | [diff] [blame] | 1455 | // We only break before r_brace if there was a corresponding break before |
| 1456 | // the l_brace, which is tracked by BreakBeforeClosingBrace. |
Daniel Jasper | 567dcf9 | 2013-09-05 09:29:45 +0000 | [diff] [blame] | 1457 | if (Right.is(tok::r_brace)) |
| 1458 | return Right.MatchingParen && Right.MatchingParen->BlockKind == BK_Block; |
Daniel Jasper | 5ad72bb | 2013-05-22 08:28:26 +0000 | [diff] [blame] | 1459 | |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1460 | // Allow breaking after a trailing 'const', e.g. after a method declaration, |
| 1461 | // unless it is follow by ';', '{' or '='. |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 1462 | if (Left.is(tok::kw_const) && Left.Previous != NULL && |
| 1463 | Left.Previous->is(tok::r_paren)) |
Alexander Kornienko | e74de28 | 2013-03-13 14:41:29 +0000 | [diff] [blame] | 1464 | return !Right.isOneOf(tok::l_brace, tok::semi, tok::equal); |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1465 | |
Daniel Jasper | 8ef19a2 | 2013-03-14 09:50:46 +0000 | [diff] [blame] | 1466 | if (Right.is(tok::kw___attribute)) |
| 1467 | return true; |
| 1468 | |
Daniel Jasper | 3a20441 | 2013-02-23 07:46:38 +0000 | [diff] [blame] | 1469 | if (Left.is(tok::identifier) && Right.is(tok::string_literal)) |
| 1470 | return true; |
Daniel Jasper | e8b10d3 | 2013-07-26 16:56:36 +0000 | [diff] [blame] | 1471 | |
| 1472 | if (Left.Type == TT_CtorInitializerComma && |
| 1473 | Style.BreakConstructorInitializersBeforeComma) |
| 1474 | return false; |
Daniel Jasper | 19ccb12 | 2013-10-08 05:11:18 +0000 | [diff] [blame] | 1475 | if (Right.Type == TT_CtorInitializerComma && |
| 1476 | Style.BreakConstructorInitializersBeforeComma) |
| 1477 | return true; |
Daniel Jasper | e8b10d3 | 2013-07-26 16:56:36 +0000 | [diff] [blame] | 1478 | if (Right.isBinaryOperator() && Style.BreakBeforeBinaryOperators) |
| 1479 | return true; |
Daniel Jasper | 26356cc | 2013-09-17 08:15:46 +0000 | [diff] [blame] | 1480 | if (Left.is(tok::greater) && Right.is(tok::greater) && |
| 1481 | Left.Type != TT_TemplateCloser) |
| 1482 | return false; |
Daniel Jasper | a07aa66 | 2013-10-22 15:30:28 +0000 | [diff] [blame] | 1483 | if (Left.Type == TT_ArrayInitializerLSquare) |
| 1484 | return true; |
Daniel Jasper | e8b10d3 | 2013-07-26 16:56:36 +0000 | [diff] [blame] | 1485 | return (Left.isBinaryOperator() && Left.isNot(tok::lessless) && |
| 1486 | !Style.BreakBeforeBinaryOperators) || |
Daniel Jasper | 6b119d6 | 2013-04-05 17:22:09 +0000 | [diff] [blame] | 1487 | Left.isOneOf(tok::comma, tok::coloncolon, tok::semi, tok::l_brace, |
| 1488 | tok::kw_class, tok::kw_struct) || |
Daniel Jasper | a07aa66 | 2013-10-22 15:30:28 +0000 | [diff] [blame] | 1489 | Right.isOneOf(tok::lessless, tok::arrow, tok::period, tok::colon, |
| 1490 | tok::l_square, tok::at) || |
Daniel Jasper | 198c8bf | 2013-07-05 07:58:34 +0000 | [diff] [blame] | 1491 | (Left.is(tok::r_paren) && |
Daniel Jasper | e033e87 | 2013-05-21 09:16:31 +0000 | [diff] [blame] | 1492 | Right.isOneOf(tok::identifier, tok::kw_const, tok::kw___attribute)) || |
Daniel Jasper | a07aa66 | 2013-10-22 15:30:28 +0000 | [diff] [blame] | 1493 | (Left.is(tok::l_paren) && !Right.is(tok::r_paren)); |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1494 | } |
| 1495 | |
Daniel Jasper | bf71ba2 | 2013-04-08 20:33:42 +0000 | [diff] [blame] | 1496 | void TokenAnnotator::printDebugInfo(const AnnotatedLine &Line) { |
| 1497 | llvm::errs() << "AnnotatedTokens:\n"; |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 1498 | const FormatToken *Tok = Line.First; |
Daniel Jasper | bf71ba2 | 2013-04-08 20:33:42 +0000 | [diff] [blame] | 1499 | while (Tok) { |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 1500 | llvm::errs() << " M=" << Tok->MustBreakBefore |
Daniel Jasper | c7bd68f | 2013-07-10 14:02:49 +0000 | [diff] [blame] | 1501 | << " C=" << Tok->CanBreakBefore << " T=" << Tok->Type |
| 1502 | << " S=" << Tok->SpacesRequiredBefore |
| 1503 | << " P=" << Tok->SplitPenalty << " Name=" << Tok->Tok.getName() |
Manuel Klimek | ae76f7f | 2013-10-11 21:25:45 +0000 | [diff] [blame] | 1504 | << " L=" << Tok->TotalLength << " PPK=" << Tok->PackingKind |
| 1505 | << " FakeLParens="; |
Daniel Jasper | bf71ba2 | 2013-04-08 20:33:42 +0000 | [diff] [blame] | 1506 | for (unsigned i = 0, e = Tok->FakeLParens.size(); i != e; ++i) |
| 1507 | llvm::errs() << Tok->FakeLParens[i] << "/"; |
| 1508 | llvm::errs() << " FakeRParens=" << Tok->FakeRParens << "\n"; |
Manuel Klimek | ae76f7f | 2013-10-11 21:25:45 +0000 | [diff] [blame] | 1509 | if (Tok->Next == NULL) |
| 1510 | assert(Tok == Line.Last); |
Manuel Klimek | b398701 | 2013-05-29 14:47:47 +0000 | [diff] [blame] | 1511 | Tok = Tok->Next; |
Daniel Jasper | bf71ba2 | 2013-04-08 20:33:42 +0000 | [diff] [blame] | 1512 | } |
| 1513 | llvm::errs() << "----\n"; |
| 1514 | } |
| 1515 | |
Daniel Jasper | 32d28ee | 2013-01-29 21:01:14 +0000 | [diff] [blame] | 1516 | } // namespace format |
| 1517 | } // namespace clang |