Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 1 | //===--- Parser.cpp - C Language Family Parser ----------------------------===// |
| 2 | // |
| 3 | // The LLVM Compiler Infrastructure |
| 4 | // |
Chris Lattner | 0bc735f | 2007-12-29 19:59:25 +0000 | [diff] [blame] | 5 | // This file is distributed under the University of Illinois Open Source |
| 6 | // License. See LICENSE.TXT for details. |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 7 | // |
| 8 | //===----------------------------------------------------------------------===// |
| 9 | // |
| 10 | // This file implements the Parser interfaces. |
| 11 | // |
| 12 | //===----------------------------------------------------------------------===// |
| 13 | |
| 14 | #include "clang/Parse/Parser.h" |
Chandler Carruth | 55fc873 | 2012-12-04 09:13:33 +0000 | [diff] [blame] | 15 | #include "ParsePragma.h" |
| 16 | #include "RAIIObjectsForParser.h" |
| 17 | #include "clang/AST/ASTConsumer.h" |
| 18 | #include "clang/AST/DeclTemplate.h" |
Chris Lattner | 500d329 | 2009-01-29 05:15:15 +0000 | [diff] [blame] | 19 | #include "clang/Parse/ParseDiagnostic.h" |
John McCall | 1951085 | 2010-08-20 18:27:03 +0000 | [diff] [blame] | 20 | #include "clang/Sema/DeclSpec.h" |
John McCall | 1951085 | 2010-08-20 18:27:03 +0000 | [diff] [blame] | 21 | #include "clang/Sema/ParsedTemplate.h" |
Chandler Carruth | 55fc873 | 2012-12-04 09:13:33 +0000 | [diff] [blame] | 22 | #include "clang/Sema/Scope.h" |
Chris Lattner | 0102c30 | 2009-03-05 07:24:28 +0000 | [diff] [blame] | 23 | #include "llvm/Support/raw_ostream.h" |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 24 | using namespace clang; |
| 25 | |
Mahesha S | 68de140 | 2012-10-27 09:05:45 +0000 | [diff] [blame] | 26 | |
Benjamin Kramer | 69b5e95 | 2012-07-13 13:25:11 +0000 | [diff] [blame] | 27 | namespace { |
Dmitri Gribenko | aa0cd85 | 2012-06-20 00:34:58 +0000 | [diff] [blame] | 28 | /// \brief A comment handler that passes comments found by the preprocessor |
| 29 | /// to the parser action. |
| 30 | class ActionCommentHandler : public CommentHandler { |
| 31 | Sema &S; |
| 32 | |
| 33 | public: |
| 34 | explicit ActionCommentHandler(Sema &S) : S(S) { } |
| 35 | |
| 36 | virtual bool HandleComment(Preprocessor &PP, SourceRange Comment) { |
| 37 | S.ActOnComment(Comment); |
| 38 | return false; |
| 39 | } |
| 40 | }; |
Benjamin Kramer | 69b5e95 | 2012-07-13 13:25:11 +0000 | [diff] [blame] | 41 | } // end anonymous namespace |
Dmitri Gribenko | aa0cd85 | 2012-06-20 00:34:58 +0000 | [diff] [blame] | 42 | |
Douglas Gregor | b57791e | 2011-10-21 03:57:52 +0000 | [diff] [blame] | 43 | IdentifierInfo *Parser::getSEHExceptKeyword() { |
| 44 | // __except is accepted as a (contextual) keyword |
David Blaikie | 4e4d084 | 2012-03-11 07:00:24 +0000 | [diff] [blame] | 45 | if (!Ident__except && (getLangOpts().MicrosoftExt || getLangOpts().Borland)) |
Douglas Gregor | b57791e | 2011-10-21 03:57:52 +0000 | [diff] [blame] | 46 | Ident__except = PP.getIdentifierInfo("__except"); |
| 47 | |
| 48 | return Ident__except; |
| 49 | } |
| 50 | |
Argyrios Kyrtzidis | 25893e0 | 2012-10-31 17:29:22 +0000 | [diff] [blame] | 51 | Parser::Parser(Preprocessor &pp, Sema &actions, bool skipFunctionBodies) |
Ted Kremenek | 614f96a | 2011-03-22 01:15:17 +0000 | [diff] [blame] | 52 | : PP(pp), Actions(actions), Diags(PP.getDiagnostics()), |
Douglas Gregor | 0fbda68 | 2010-09-15 14:51:05 +0000 | [diff] [blame] | 53 | GreaterThanIsOperator(true), ColonIsSacred(false), |
Erik Verbruggen | 6a91d38 | 2012-04-12 10:11:59 +0000 | [diff] [blame] | 54 | InMessageExpression(false), TemplateParameterDepth(0), |
Argyrios Kyrtzidis | 25893e0 | 2012-10-31 17:29:22 +0000 | [diff] [blame] | 55 | ParsingInObjCContainer(false) { |
| 56 | SkipFunctionBodies = pp.isCodeCompletionEnabled() || skipFunctionBodies; |
Chris Lattner | 2b970e9 | 2012-10-27 19:49:20 +0000 | [diff] [blame] | 57 | Tok.startToken(); |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 58 | Tok.setKind(tok::eof); |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 59 | Actions.CurScope = 0; |
Chris Lattner | 9e344c6 | 2007-07-15 00:04:39 +0000 | [diff] [blame] | 60 | NumCachedScopes = 0; |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 61 | ParenCount = BracketCount = BraceCount = 0; |
Argyrios Kyrtzidis | 849639d | 2012-02-07 16:50:53 +0000 | [diff] [blame] | 62 | CurParsedObjCImpl = 0; |
Daniel Dunbar | fcdd8fe | 2008-10-04 19:21:03 +0000 | [diff] [blame] | 63 | |
| 64 | // Add #pragma handlers. These are removed and destroyed in the |
| 65 | // destructor. |
Eli Friedman | 9595c7e | 2012-10-04 02:36:51 +0000 | [diff] [blame] | 66 | AlignHandler.reset(new PragmaAlignHandler()); |
Daniel Dunbar | cbb98ed | 2010-07-31 19:17:07 +0000 | [diff] [blame] | 67 | PP.AddPragmaHandler(AlignHandler.get()); |
| 68 | |
Eli Friedman | 9595c7e | 2012-10-04 02:36:51 +0000 | [diff] [blame] | 69 | GCCVisibilityHandler.reset(new PragmaGCCVisibilityHandler()); |
Eli Friedman | aa8b0d1 | 2010-08-05 06:57:20 +0000 | [diff] [blame] | 70 | PP.AddPragmaHandler("GCC", GCCVisibilityHandler.get()); |
| 71 | |
Eli Friedman | 9595c7e | 2012-10-04 02:36:51 +0000 | [diff] [blame] | 72 | OptionsHandler.reset(new PragmaOptionsHandler()); |
Argyrios Kyrtzidis | 9b36c3f | 2010-07-13 09:07:17 +0000 | [diff] [blame] | 73 | PP.AddPragmaHandler(OptionsHandler.get()); |
Daniel Dunbar | 861800c | 2010-05-26 23:29:06 +0000 | [diff] [blame] | 74 | |
Eli Friedman | 9595c7e | 2012-10-04 02:36:51 +0000 | [diff] [blame] | 75 | PackHandler.reset(new PragmaPackHandler()); |
Argyrios Kyrtzidis | 9b36c3f | 2010-07-13 09:07:17 +0000 | [diff] [blame] | 76 | PP.AddPragmaHandler(PackHandler.get()); |
Fariborz Jahanian | 62c9258 | 2011-04-25 18:49:15 +0000 | [diff] [blame] | 77 | |
Eli Friedman | 9595c7e | 2012-10-04 02:36:51 +0000 | [diff] [blame] | 78 | MSStructHandler.reset(new PragmaMSStructHandler()); |
Fariborz Jahanian | 62c9258 | 2011-04-25 18:49:15 +0000 | [diff] [blame] | 79 | PP.AddPragmaHandler(MSStructHandler.get()); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 80 | |
Eli Friedman | 9595c7e | 2012-10-04 02:36:51 +0000 | [diff] [blame] | 81 | UnusedHandler.reset(new PragmaUnusedHandler()); |
Argyrios Kyrtzidis | 9b36c3f | 2010-07-13 09:07:17 +0000 | [diff] [blame] | 82 | PP.AddPragmaHandler(UnusedHandler.get()); |
Eli Friedman | 9991479 | 2009-06-05 00:49:58 +0000 | [diff] [blame] | 83 | |
Eli Friedman | 9595c7e | 2012-10-04 02:36:51 +0000 | [diff] [blame] | 84 | WeakHandler.reset(new PragmaWeakHandler()); |
Argyrios Kyrtzidis | 9b36c3f | 2010-07-13 09:07:17 +0000 | [diff] [blame] | 85 | PP.AddPragmaHandler(WeakHandler.get()); |
Peter Collingbourne | 321b817 | 2011-02-14 01:42:35 +0000 | [diff] [blame] | 86 | |
Eli Friedman | 9595c7e | 2012-10-04 02:36:51 +0000 | [diff] [blame] | 87 | RedefineExtnameHandler.reset(new PragmaRedefineExtnameHandler()); |
David Chisnall | 5f3c163 | 2012-02-18 16:12:34 +0000 | [diff] [blame] | 88 | PP.AddPragmaHandler(RedefineExtnameHandler.get()); |
| 89 | |
Eli Friedman | 9595c7e | 2012-10-04 02:36:51 +0000 | [diff] [blame] | 90 | FPContractHandler.reset(new PragmaFPContractHandler()); |
Peter Collingbourne | 321b817 | 2011-02-14 01:42:35 +0000 | [diff] [blame] | 91 | PP.AddPragmaHandler("STDC", FPContractHandler.get()); |
Peter Collingbourne | f315fa8 | 2011-02-14 01:42:53 +0000 | [diff] [blame] | 92 | |
David Blaikie | 4e4d084 | 2012-03-11 07:00:24 +0000 | [diff] [blame] | 93 | if (getLangOpts().OpenCL) { |
Eli Friedman | 9595c7e | 2012-10-04 02:36:51 +0000 | [diff] [blame] | 94 | OpenCLExtensionHandler.reset(new PragmaOpenCLExtensionHandler()); |
Peter Collingbourne | f315fa8 | 2011-02-14 01:42:53 +0000 | [diff] [blame] | 95 | PP.AddPragmaHandler("OPENCL", OpenCLExtensionHandler.get()); |
| 96 | |
| 97 | PP.AddPragmaHandler("OPENCL", FPContractHandler.get()); |
| 98 | } |
Alexey Bataev | c640058 | 2013-03-22 06:34:35 +0000 | [diff] [blame] | 99 | if (getLangOpts().OpenMP) |
| 100 | OpenMPHandler.reset(new PragmaOpenMPHandler()); |
| 101 | else |
| 102 | OpenMPHandler.reset(new PragmaNoOpenMPHandler()); |
| 103 | PP.AddPragmaHandler(OpenMPHandler.get()); |
Dmitri Gribenko | aa0cd85 | 2012-06-20 00:34:58 +0000 | [diff] [blame] | 104 | |
Reid Kleckner | 7adf79a | 2013-05-06 21:02:12 +0000 | [diff] [blame] | 105 | if (getLangOpts().MicrosoftExt) { |
Reid Kleckner | 3190ca9 | 2013-05-08 13:44:39 +0000 | [diff] [blame] | 106 | MSCommentHandler.reset(new PragmaCommentHandler(actions)); |
Reid Kleckner | 7adf79a | 2013-05-06 21:02:12 +0000 | [diff] [blame] | 107 | PP.AddPragmaHandler(MSCommentHandler.get()); |
Aaron Ballman | a7ff62f | 2013-06-04 02:07:14 +0000 | [diff] [blame] | 108 | MSDetectMismatchHandler.reset(new PragmaDetectMismatchHandler(actions)); |
| 109 | PP.AddPragmaHandler(MSDetectMismatchHandler.get()); |
Reid Kleckner | 7adf79a | 2013-05-06 21:02:12 +0000 | [diff] [blame] | 110 | } |
| 111 | |
Dmitri Gribenko | 056e2c3 | 2012-06-20 01:06:08 +0000 | [diff] [blame] | 112 | CommentSemaHandler.reset(new ActionCommentHandler(actions)); |
| 113 | PP.addCommentHandler(CommentSemaHandler.get()); |
Dmitri Gribenko | aa0cd85 | 2012-06-20 00:34:58 +0000 | [diff] [blame] | 114 | |
Douglas Gregor | f44e854 | 2010-08-24 19:08:16 +0000 | [diff] [blame] | 115 | PP.setCodeCompletionHandler(*this); |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 116 | } |
| 117 | |
Chris Lattner | 3cbfe2c | 2008-11-22 00:59:29 +0000 | [diff] [blame] | 118 | DiagnosticBuilder Parser::Diag(SourceLocation Loc, unsigned DiagID) { |
Argyrios Kyrtzidis | 33e4e70 | 2010-11-18 20:06:41 +0000 | [diff] [blame] | 119 | return Diags.Report(Loc, DiagID); |
Chris Lattner | 1ab3b96 | 2008-11-18 07:48:38 +0000 | [diff] [blame] | 120 | } |
| 121 | |
Chris Lattner | 3cbfe2c | 2008-11-22 00:59:29 +0000 | [diff] [blame] | 122 | DiagnosticBuilder Parser::Diag(const Token &Tok, unsigned DiagID) { |
Chris Lattner | 1ab3b96 | 2008-11-18 07:48:38 +0000 | [diff] [blame] | 123 | return Diag(Tok.getLocation(), DiagID); |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 124 | } |
| 125 | |
Douglas Gregor | 4b2d3f7 | 2009-02-26 21:00:50 +0000 | [diff] [blame] | 126 | /// \brief Emits a diagnostic suggesting parentheses surrounding a |
| 127 | /// given range. |
| 128 | /// |
| 129 | /// \param Loc The location where we'll emit the diagnostic. |
Dmitri Gribenko | 70517ca | 2012-08-23 17:58:28 +0000 | [diff] [blame] | 130 | /// \param DK The kind of diagnostic to emit. |
Douglas Gregor | 4b2d3f7 | 2009-02-26 21:00:50 +0000 | [diff] [blame] | 131 | /// \param ParenRange Source range enclosing code that should be parenthesized. |
| 132 | void Parser::SuggestParentheses(SourceLocation Loc, unsigned DK, |
| 133 | SourceRange ParenRange) { |
Douglas Gregor | b2fb6de | 2009-02-27 17:53:17 +0000 | [diff] [blame] | 134 | SourceLocation EndLoc = PP.getLocForEndOfToken(ParenRange.getEnd()); |
| 135 | if (!ParenRange.getEnd().isFileID() || EndLoc.isInvalid()) { |
Douglas Gregor | 4b2d3f7 | 2009-02-26 21:00:50 +0000 | [diff] [blame] | 136 | // We can't display the parentheses, so just dig the |
| 137 | // warning/error and return. |
| 138 | Diag(Loc, DK); |
| 139 | return; |
| 140 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 141 | |
| 142 | Diag(Loc, DK) |
Douglas Gregor | 849b243 | 2010-03-31 17:46:05 +0000 | [diff] [blame] | 143 | << FixItHint::CreateInsertion(ParenRange.getBegin(), "(") |
| 144 | << FixItHint::CreateInsertion(EndLoc, ")"); |
Douglas Gregor | 4b2d3f7 | 2009-02-26 21:00:50 +0000 | [diff] [blame] | 145 | } |
| 146 | |
John McCall | 837b1a3 | 2010-09-07 18:31:03 +0000 | [diff] [blame] | 147 | static bool IsCommonTypo(tok::TokenKind ExpectedTok, const Token &Tok) { |
| 148 | switch (ExpectedTok) { |
Richard Smith | 4b08242 | 2012-09-18 00:52:05 +0000 | [diff] [blame] | 149 | case tok::semi: |
| 150 | return Tok.is(tok::colon) || Tok.is(tok::comma); // : or , for ; |
John McCall | 837b1a3 | 2010-09-07 18:31:03 +0000 | [diff] [blame] | 151 | default: return false; |
| 152 | } |
| 153 | } |
| 154 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 155 | /// ExpectAndConsume - The parser expects that 'ExpectedTok' is next in the |
| 156 | /// input. If so, it is consumed and false is returned. |
| 157 | /// |
| 158 | /// If the input is malformed, this emits the specified diagnostic. Next, if |
| 159 | /// SkipToTok is specified, it calls SkipUntil(SkipToTok). Finally, true is |
| 160 | /// returned. |
| 161 | bool Parser::ExpectAndConsume(tok::TokenKind ExpectedTok, unsigned DiagID, |
| 162 | const char *Msg, tok::TokenKind SkipToTok) { |
Douglas Gregor | dc84534 | 2010-05-25 05:58:43 +0000 | [diff] [blame] | 163 | if (Tok.is(ExpectedTok) || Tok.is(tok::code_completion)) { |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 164 | ConsumeAnyToken(); |
| 165 | return false; |
| 166 | } |
Mike Stump | a6f0177 | 2008-06-19 19:28:49 +0000 | [diff] [blame] | 167 | |
John McCall | 837b1a3 | 2010-09-07 18:31:03 +0000 | [diff] [blame] | 168 | // Detect common single-character typos and resume. |
| 169 | if (IsCommonTypo(ExpectedTok, Tok)) { |
| 170 | SourceLocation Loc = Tok.getLocation(); |
| 171 | Diag(Loc, DiagID) |
| 172 | << Msg |
| 173 | << FixItHint::CreateReplacement(SourceRange(Loc), |
| 174 | getTokenSimpleSpelling(ExpectedTok)); |
| 175 | ConsumeAnyToken(); |
| 176 | |
| 177 | // Pretend there wasn't a problem. |
| 178 | return false; |
| 179 | } |
| 180 | |
Douglas Gregor | 4b2d3f7 | 2009-02-26 21:00:50 +0000 | [diff] [blame] | 181 | const char *Spelling = 0; |
Douglas Gregor | b2fb6de | 2009-02-27 17:53:17 +0000 | [diff] [blame] | 182 | SourceLocation EndLoc = PP.getLocForEndOfToken(PrevTokLocation); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 183 | if (EndLoc.isValid() && |
Douglas Gregor | b2fb6de | 2009-02-27 17:53:17 +0000 | [diff] [blame] | 184 | (Spelling = tok::getTokenSimpleSpelling(ExpectedTok))) { |
Douglas Gregor | 4b2d3f7 | 2009-02-26 21:00:50 +0000 | [diff] [blame] | 185 | // Show what code to insert to fix this problem. |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 186 | Diag(EndLoc, DiagID) |
Douglas Gregor | 4b2d3f7 | 2009-02-26 21:00:50 +0000 | [diff] [blame] | 187 | << Msg |
Douglas Gregor | 849b243 | 2010-03-31 17:46:05 +0000 | [diff] [blame] | 188 | << FixItHint::CreateInsertion(EndLoc, Spelling); |
Douglas Gregor | 4b2d3f7 | 2009-02-26 21:00:50 +0000 | [diff] [blame] | 189 | } else |
| 190 | Diag(Tok, DiagID) << Msg; |
| 191 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 192 | if (SkipToTok != tok::unknown) |
| 193 | SkipUntil(SkipToTok); |
| 194 | return true; |
| 195 | } |
| 196 | |
Douglas Gregor | 9ba23b4 | 2010-09-07 15:23:11 +0000 | [diff] [blame] | 197 | bool Parser::ExpectAndConsumeSemi(unsigned DiagID) { |
| 198 | if (Tok.is(tok::semi) || Tok.is(tok::code_completion)) { |
Douglas Gregor | fb5825d | 2012-05-02 14:34:16 +0000 | [diff] [blame] | 199 | ConsumeToken(); |
Douglas Gregor | 9ba23b4 | 2010-09-07 15:23:11 +0000 | [diff] [blame] | 200 | return false; |
| 201 | } |
| 202 | |
| 203 | if ((Tok.is(tok::r_paren) || Tok.is(tok::r_square)) && |
| 204 | NextToken().is(tok::semi)) { |
| 205 | Diag(Tok, diag::err_extraneous_token_before_semi) |
| 206 | << PP.getSpelling(Tok) |
| 207 | << FixItHint::CreateRemoval(Tok.getLocation()); |
| 208 | ConsumeAnyToken(); // The ')' or ']'. |
| 209 | ConsumeToken(); // The ';'. |
| 210 | return false; |
| 211 | } |
| 212 | |
| 213 | return ExpectAndConsume(tok::semi, DiagID); |
| 214 | } |
| 215 | |
Richard Smith | eab9d6f | 2012-07-23 05:45:25 +0000 | [diff] [blame] | 216 | void Parser::ConsumeExtraSemi(ExtraSemiKind Kind, unsigned TST) { |
Richard Trieu | 4b0e6f1 | 2012-05-16 19:04:59 +0000 | [diff] [blame] | 217 | if (!Tok.is(tok::semi)) return; |
| 218 | |
Richard Smith | eab9d6f | 2012-07-23 05:45:25 +0000 | [diff] [blame] | 219 | bool HadMultipleSemis = false; |
Richard Trieu | 4b0e6f1 | 2012-05-16 19:04:59 +0000 | [diff] [blame] | 220 | SourceLocation StartLoc = Tok.getLocation(); |
| 221 | SourceLocation EndLoc = Tok.getLocation(); |
| 222 | ConsumeToken(); |
| 223 | |
| 224 | while ((Tok.is(tok::semi) && !Tok.isAtStartOfLine())) { |
Richard Smith | eab9d6f | 2012-07-23 05:45:25 +0000 | [diff] [blame] | 225 | HadMultipleSemis = true; |
Richard Trieu | 4b0e6f1 | 2012-05-16 19:04:59 +0000 | [diff] [blame] | 226 | EndLoc = Tok.getLocation(); |
| 227 | ConsumeToken(); |
| 228 | } |
| 229 | |
Richard Smith | eab9d6f | 2012-07-23 05:45:25 +0000 | [diff] [blame] | 230 | // C++11 allows extra semicolons at namespace scope, but not in any of the |
| 231 | // other contexts. |
| 232 | if (Kind == OutsideFunction && getLangOpts().CPlusPlus) { |
Richard Smith | 80ad52f | 2013-01-02 11:42:31 +0000 | [diff] [blame] | 233 | if (getLangOpts().CPlusPlus11) |
Richard Smith | eab9d6f | 2012-07-23 05:45:25 +0000 | [diff] [blame] | 234 | Diag(StartLoc, diag::warn_cxx98_compat_top_level_semi) |
| 235 | << FixItHint::CreateRemoval(SourceRange(StartLoc, EndLoc)); |
| 236 | else |
| 237 | Diag(StartLoc, diag::ext_extra_semi_cxx11) |
| 238 | << FixItHint::CreateRemoval(SourceRange(StartLoc, EndLoc)); |
Richard Trieu | 4b0e6f1 | 2012-05-16 19:04:59 +0000 | [diff] [blame] | 239 | return; |
| 240 | } |
| 241 | |
Richard Smith | eab9d6f | 2012-07-23 05:45:25 +0000 | [diff] [blame] | 242 | if (Kind != AfterMemberFunctionDefinition || HadMultipleSemis) |
| 243 | Diag(StartLoc, diag::ext_extra_semi) |
| 244 | << Kind << DeclSpec::getSpecifierName((DeclSpec::TST)TST) |
| 245 | << FixItHint::CreateRemoval(SourceRange(StartLoc, EndLoc)); |
| 246 | else |
| 247 | // A single semicolon is valid after a member function definition. |
| 248 | Diag(StartLoc, diag::warn_extra_semi_after_mem_fn_def) |
| 249 | << FixItHint::CreateRemoval(SourceRange(StartLoc, EndLoc)); |
Richard Trieu | 4b0e6f1 | 2012-05-16 19:04:59 +0000 | [diff] [blame] | 250 | } |
| 251 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 252 | //===----------------------------------------------------------------------===// |
| 253 | // Error recovery. |
| 254 | //===----------------------------------------------------------------------===// |
| 255 | |
| 256 | /// SkipUntil - Read tokens until we get to the specified token, then consume |
Chris Lattner | 012cf46 | 2007-07-24 17:03:04 +0000 | [diff] [blame] | 257 | /// it (unless DontConsume is true). Because we cannot guarantee that the |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 258 | /// token will ever occur, this skips to the next token, or to some likely |
| 259 | /// good stopping point. If StopAtSemi is true, skipping will stop at a ';' |
| 260 | /// character. |
Mike Stump | a6f0177 | 2008-06-19 19:28:49 +0000 | [diff] [blame] | 261 | /// |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 262 | /// If SkipUntil finds the specified token, it returns true, otherwise it |
Mike Stump | a6f0177 | 2008-06-19 19:28:49 +0000 | [diff] [blame] | 263 | /// returns false. |
David Blaikie | eb52f86a | 2012-04-09 16:37:11 +0000 | [diff] [blame] | 264 | bool Parser::SkipUntil(ArrayRef<tok::TokenKind> Toks, bool StopAtSemi, |
| 265 | bool DontConsume, bool StopAtCodeCompletion) { |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 266 | // We always want this function to skip at least one token if the first token |
| 267 | // isn't T and if not at EOF. |
| 268 | bool isFirstTokenSkipped = true; |
| 269 | while (1) { |
| 270 | // If we found one of the tokens, stop and return true. |
David Blaikie | eb52f86a | 2012-04-09 16:37:11 +0000 | [diff] [blame] | 271 | for (unsigned i = 0, NumToks = Toks.size(); i != NumToks; ++i) { |
Chris Lattner | 0007322 | 2007-10-09 17:23:58 +0000 | [diff] [blame] | 272 | if (Tok.is(Toks[i])) { |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 273 | if (DontConsume) { |
| 274 | // Noop, don't consume the token. |
| 275 | } else { |
| 276 | ConsumeAnyToken(); |
| 277 | } |
| 278 | return true; |
| 279 | } |
| 280 | } |
Mike Stump | a6f0177 | 2008-06-19 19:28:49 +0000 | [diff] [blame] | 281 | |
Rafael Espindola | d66bf94 | 2013-07-25 02:11:20 +0000 | [diff] [blame] | 282 | // Important special case: The caller has given up and just wants us to |
| 283 | // skip the rest of the file. Do this without recursing, since we can |
| 284 | // get here precisely because the caller detected too much recursion. |
| 285 | if (Toks.size() == 1 && Toks[0] == tok::eof && !StopAtSemi && |
| 286 | !StopAtCodeCompletion) { |
| 287 | while (Tok.getKind() != tok::eof) |
| 288 | ConsumeAnyToken(); |
| 289 | return true; |
| 290 | } |
| 291 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 292 | switch (Tok.getKind()) { |
| 293 | case tok::eof: |
| 294 | // Ran out of tokens. |
| 295 | return false; |
Douglas Gregor | dc84534 | 2010-05-25 05:58:43 +0000 | [diff] [blame] | 296 | |
| 297 | case tok::code_completion: |
Argyrios Kyrtzidis | 3437f1f | 2011-01-03 19:44:02 +0000 | [diff] [blame] | 298 | if (!StopAtCodeCompletion) |
| 299 | ConsumeToken(); |
Douglas Gregor | dc84534 | 2010-05-25 05:58:43 +0000 | [diff] [blame] | 300 | return false; |
| 301 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 302 | case tok::l_paren: |
| 303 | // Recursively skip properly-nested parens. |
| 304 | ConsumeParen(); |
Argyrios Kyrtzidis | 3437f1f | 2011-01-03 19:44:02 +0000 | [diff] [blame] | 305 | SkipUntil(tok::r_paren, false, false, StopAtCodeCompletion); |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 306 | break; |
| 307 | case tok::l_square: |
| 308 | // Recursively skip properly-nested square brackets. |
| 309 | ConsumeBracket(); |
Argyrios Kyrtzidis | 3437f1f | 2011-01-03 19:44:02 +0000 | [diff] [blame] | 310 | SkipUntil(tok::r_square, false, false, StopAtCodeCompletion); |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 311 | break; |
| 312 | case tok::l_brace: |
| 313 | // Recursively skip properly-nested braces. |
| 314 | ConsumeBrace(); |
Argyrios Kyrtzidis | 3437f1f | 2011-01-03 19:44:02 +0000 | [diff] [blame] | 315 | SkipUntil(tok::r_brace, false, false, StopAtCodeCompletion); |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 316 | break; |
Mike Stump | a6f0177 | 2008-06-19 19:28:49 +0000 | [diff] [blame] | 317 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 318 | // Okay, we found a ']' or '}' or ')', which we think should be balanced. |
| 319 | // Since the user wasn't looking for this token (if they were, it would |
| 320 | // already be handled), this isn't balanced. If there is a LHS token at a |
| 321 | // higher level, we will assume that this matches the unbalanced token |
| 322 | // and return it. Otherwise, this is a spurious RHS token, which we skip. |
| 323 | case tok::r_paren: |
| 324 | if (ParenCount && !isFirstTokenSkipped) |
| 325 | return false; // Matches something. |
| 326 | ConsumeParen(); |
| 327 | break; |
| 328 | case tok::r_square: |
| 329 | if (BracketCount && !isFirstTokenSkipped) |
| 330 | return false; // Matches something. |
| 331 | ConsumeBracket(); |
| 332 | break; |
| 333 | case tok::r_brace: |
| 334 | if (BraceCount && !isFirstTokenSkipped) |
| 335 | return false; // Matches something. |
| 336 | ConsumeBrace(); |
| 337 | break; |
Mike Stump | a6f0177 | 2008-06-19 19:28:49 +0000 | [diff] [blame] | 338 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 339 | case tok::string_literal: |
| 340 | case tok::wide_string_literal: |
Douglas Gregor | 5cee119 | 2011-07-27 05:40:30 +0000 | [diff] [blame] | 341 | case tok::utf8_string_literal: |
| 342 | case tok::utf16_string_literal: |
| 343 | case tok::utf32_string_literal: |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 344 | ConsumeStringToken(); |
| 345 | break; |
Fariborz Jahanian | 55edca9 | 2011-02-23 00:11:21 +0000 | [diff] [blame] | 346 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 347 | case tok::semi: |
| 348 | if (StopAtSemi) |
| 349 | return false; |
| 350 | // FALL THROUGH. |
| 351 | default: |
| 352 | // Skip this token. |
| 353 | ConsumeToken(); |
| 354 | break; |
| 355 | } |
| 356 | isFirstTokenSkipped = false; |
Mike Stump | a6f0177 | 2008-06-19 19:28:49 +0000 | [diff] [blame] | 357 | } |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 358 | } |
| 359 | |
| 360 | //===----------------------------------------------------------------------===// |
| 361 | // Scope manipulation |
| 362 | //===----------------------------------------------------------------------===// |
| 363 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 364 | /// EnterScope - Start a new scope. |
| 365 | void Parser::EnterScope(unsigned ScopeFlags) { |
Chris Lattner | 9e344c6 | 2007-07-15 00:04:39 +0000 | [diff] [blame] | 366 | if (NumCachedScopes) { |
| 367 | Scope *N = ScopeCache[--NumCachedScopes]; |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 368 | N->Init(getCurScope(), ScopeFlags); |
| 369 | Actions.CurScope = N; |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 370 | } else { |
Argyrios Kyrtzidis | 9c4eb1f | 2010-11-19 00:19:12 +0000 | [diff] [blame] | 371 | Actions.CurScope = new Scope(getCurScope(), ScopeFlags, Diags); |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 372 | } |
| 373 | } |
| 374 | |
| 375 | /// ExitScope - Pop a scope off the scope stack. |
| 376 | void Parser::ExitScope() { |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 377 | assert(getCurScope() && "Scope imbalance!"); |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 378 | |
Chris Lattner | 90ae68a | 2007-10-09 20:37:18 +0000 | [diff] [blame] | 379 | // Inform the actions module that this scope is going away if there are any |
| 380 | // decls in it. |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 381 | if (!getCurScope()->decl_empty()) |
| 382 | Actions.ActOnPopScope(Tok.getLocation(), getCurScope()); |
Mike Stump | a6f0177 | 2008-06-19 19:28:49 +0000 | [diff] [blame] | 383 | |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 384 | Scope *OldScope = getCurScope(); |
| 385 | Actions.CurScope = OldScope->getParent(); |
Mike Stump | a6f0177 | 2008-06-19 19:28:49 +0000 | [diff] [blame] | 386 | |
Chris Lattner | 9e344c6 | 2007-07-15 00:04:39 +0000 | [diff] [blame] | 387 | if (NumCachedScopes == ScopeCacheSize) |
| 388 | delete OldScope; |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 389 | else |
Chris Lattner | 9e344c6 | 2007-07-15 00:04:39 +0000 | [diff] [blame] | 390 | ScopeCache[NumCachedScopes++] = OldScope; |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 391 | } |
| 392 | |
Richard Smith | 7a614d8 | 2011-06-11 17:19:42 +0000 | [diff] [blame] | 393 | /// Set the flags for the current scope to ScopeFlags. If ManageFlags is false, |
| 394 | /// this object does nothing. |
| 395 | Parser::ParseScopeFlags::ParseScopeFlags(Parser *Self, unsigned ScopeFlags, |
| 396 | bool ManageFlags) |
| 397 | : CurScope(ManageFlags ? Self->getCurScope() : 0) { |
| 398 | if (CurScope) { |
| 399 | OldFlags = CurScope->getFlags(); |
| 400 | CurScope->setFlags(ScopeFlags); |
| 401 | } |
| 402 | } |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 403 | |
Richard Smith | 7a614d8 | 2011-06-11 17:19:42 +0000 | [diff] [blame] | 404 | /// Restore the flags for the current scope to what they were before this |
| 405 | /// object overrode them. |
| 406 | Parser::ParseScopeFlags::~ParseScopeFlags() { |
| 407 | if (CurScope) |
| 408 | CurScope->setFlags(OldFlags); |
| 409 | } |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 410 | |
| 411 | |
| 412 | //===----------------------------------------------------------------------===// |
| 413 | // C99 6.9: External Definitions. |
| 414 | //===----------------------------------------------------------------------===// |
| 415 | |
| 416 | Parser::~Parser() { |
| 417 | // If we still have scopes active, delete the scope tree. |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 418 | delete getCurScope(); |
| 419 | Actions.CurScope = 0; |
| 420 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 421 | // Free the scope cache. |
Chris Lattner | 9e344c6 | 2007-07-15 00:04:39 +0000 | [diff] [blame] | 422 | for (unsigned i = 0, e = NumCachedScopes; i != e; ++i) |
| 423 | delete ScopeCache[i]; |
Daniel Dunbar | fcdd8fe | 2008-10-04 19:21:03 +0000 | [diff] [blame] | 424 | |
| 425 | // Remove the pragma handlers we installed. |
Daniel Dunbar | cbb98ed | 2010-07-31 19:17:07 +0000 | [diff] [blame] | 426 | PP.RemovePragmaHandler(AlignHandler.get()); |
| 427 | AlignHandler.reset(); |
Eli Friedman | aa8b0d1 | 2010-08-05 06:57:20 +0000 | [diff] [blame] | 428 | PP.RemovePragmaHandler("GCC", GCCVisibilityHandler.get()); |
| 429 | GCCVisibilityHandler.reset(); |
Argyrios Kyrtzidis | 9b36c3f | 2010-07-13 09:07:17 +0000 | [diff] [blame] | 430 | PP.RemovePragmaHandler(OptionsHandler.get()); |
Daniel Dunbar | 861800c | 2010-05-26 23:29:06 +0000 | [diff] [blame] | 431 | OptionsHandler.reset(); |
Argyrios Kyrtzidis | 9b36c3f | 2010-07-13 09:07:17 +0000 | [diff] [blame] | 432 | PP.RemovePragmaHandler(PackHandler.get()); |
Ted Kremenek | 4726d03 | 2009-03-23 22:28:25 +0000 | [diff] [blame] | 433 | PackHandler.reset(); |
Fariborz Jahanian | 62c9258 | 2011-04-25 18:49:15 +0000 | [diff] [blame] | 434 | PP.RemovePragmaHandler(MSStructHandler.get()); |
| 435 | MSStructHandler.reset(); |
Argyrios Kyrtzidis | 9b36c3f | 2010-07-13 09:07:17 +0000 | [diff] [blame] | 436 | PP.RemovePragmaHandler(UnusedHandler.get()); |
Ted Kremenek | 4726d03 | 2009-03-23 22:28:25 +0000 | [diff] [blame] | 437 | UnusedHandler.reset(); |
Argyrios Kyrtzidis | 9b36c3f | 2010-07-13 09:07:17 +0000 | [diff] [blame] | 438 | PP.RemovePragmaHandler(WeakHandler.get()); |
Eli Friedman | 9991479 | 2009-06-05 00:49:58 +0000 | [diff] [blame] | 439 | WeakHandler.reset(); |
David Chisnall | 5f3c163 | 2012-02-18 16:12:34 +0000 | [diff] [blame] | 440 | PP.RemovePragmaHandler(RedefineExtnameHandler.get()); |
| 441 | RedefineExtnameHandler.reset(); |
Peter Collingbourne | f315fa8 | 2011-02-14 01:42:53 +0000 | [diff] [blame] | 442 | |
David Blaikie | 4e4d084 | 2012-03-11 07:00:24 +0000 | [diff] [blame] | 443 | if (getLangOpts().OpenCL) { |
Peter Collingbourne | f315fa8 | 2011-02-14 01:42:53 +0000 | [diff] [blame] | 444 | PP.RemovePragmaHandler("OPENCL", OpenCLExtensionHandler.get()); |
| 445 | OpenCLExtensionHandler.reset(); |
| 446 | PP.RemovePragmaHandler("OPENCL", FPContractHandler.get()); |
| 447 | } |
Alexey Bataev | c640058 | 2013-03-22 06:34:35 +0000 | [diff] [blame] | 448 | PP.RemovePragmaHandler(OpenMPHandler.get()); |
| 449 | OpenMPHandler.reset(); |
Peter Collingbourne | f315fa8 | 2011-02-14 01:42:53 +0000 | [diff] [blame] | 450 | |
Reid Kleckner | 7adf79a | 2013-05-06 21:02:12 +0000 | [diff] [blame] | 451 | if (getLangOpts().MicrosoftExt) { |
| 452 | PP.RemovePragmaHandler(MSCommentHandler.get()); |
| 453 | MSCommentHandler.reset(); |
Aaron Ballman | a7ff62f | 2013-06-04 02:07:14 +0000 | [diff] [blame] | 454 | PP.RemovePragmaHandler(MSDetectMismatchHandler.get()); |
| 455 | MSDetectMismatchHandler.reset(); |
Reid Kleckner | 7adf79a | 2013-05-06 21:02:12 +0000 | [diff] [blame] | 456 | } |
| 457 | |
Peter Collingbourne | 321b817 | 2011-02-14 01:42:35 +0000 | [diff] [blame] | 458 | PP.RemovePragmaHandler("STDC", FPContractHandler.get()); |
| 459 | FPContractHandler.reset(); |
Dmitri Gribenko | aa0cd85 | 2012-06-20 00:34:58 +0000 | [diff] [blame] | 460 | |
Dmitri Gribenko | 056e2c3 | 2012-06-20 01:06:08 +0000 | [diff] [blame] | 461 | PP.removeCommentHandler(CommentSemaHandler.get()); |
Dmitri Gribenko | aa0cd85 | 2012-06-20 00:34:58 +0000 | [diff] [blame] | 462 | |
Douglas Gregor | f44e854 | 2010-08-24 19:08:16 +0000 | [diff] [blame] | 463 | PP.clearCodeCompletionHandler(); |
Benjamin Kramer | 13bb701 | 2012-04-14 12:14:03 +0000 | [diff] [blame] | 464 | |
| 465 | assert(TemplateIds.empty() && "Still alive TemplateIdAnnotations around?"); |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 466 | } |
| 467 | |
| 468 | /// Initialize - Warm up the parser. |
| 469 | /// |
| 470 | void Parser::Initialize() { |
Chris Lattner | 31e0572 | 2007-08-26 06:24:45 +0000 | [diff] [blame] | 471 | // Create the translation unit scope. Install it as the current scope. |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 472 | assert(getCurScope() == 0 && "A scope is already active?"); |
Chris Lattner | 31e0572 | 2007-08-26 06:24:45 +0000 | [diff] [blame] | 473 | EnterScope(Scope::DeclScope); |
Douglas Gregor | c1a3e5e | 2010-08-25 18:07:12 +0000 | [diff] [blame] | 474 | Actions.ActOnTranslationUnitScope(getCurScope()); |
| 475 | |
Chris Lattner | 34870da | 2007-08-29 22:54:08 +0000 | [diff] [blame] | 476 | // Initialization for Objective-C context sensitive keywords recognition. |
Ted Kremenek | a526c5c | 2008-01-07 19:49:32 +0000 | [diff] [blame] | 477 | // Referenced in Parser::ParseObjCTypeQualifierList. |
David Blaikie | 4e4d084 | 2012-03-11 07:00:24 +0000 | [diff] [blame] | 478 | if (getLangOpts().ObjC1) { |
Ted Kremenek | a526c5c | 2008-01-07 19:49:32 +0000 | [diff] [blame] | 479 | ObjCTypeQuals[objc_in] = &PP.getIdentifierTable().get("in"); |
| 480 | ObjCTypeQuals[objc_out] = &PP.getIdentifierTable().get("out"); |
| 481 | ObjCTypeQuals[objc_inout] = &PP.getIdentifierTable().get("inout"); |
| 482 | ObjCTypeQuals[objc_oneway] = &PP.getIdentifierTable().get("oneway"); |
| 483 | ObjCTypeQuals[objc_bycopy] = &PP.getIdentifierTable().get("bycopy"); |
| 484 | ObjCTypeQuals[objc_byref] = &PP.getIdentifierTable().get("byref"); |
Chris Lattner | 34870da | 2007-08-29 22:54:08 +0000 | [diff] [blame] | 485 | } |
Daniel Dunbar | 662e8b5 | 2008-08-14 22:04:54 +0000 | [diff] [blame] | 486 | |
Douglas Gregor | e97179c | 2011-09-08 01:46:34 +0000 | [diff] [blame] | 487 | Ident_instancetype = 0; |
Anders Carlsson | 7eeb4ec | 2011-01-20 03:47:08 +0000 | [diff] [blame] | 488 | Ident_final = 0; |
David Majnemer | 7121bdb | 2013-10-18 00:33:31 +0000 | [diff] [blame] | 489 | Ident_sealed = 0; |
Anders Carlsson | 7eeb4ec | 2011-01-20 03:47:08 +0000 | [diff] [blame] | 490 | Ident_override = 0; |
Anders Carlsson | 1f3b6fd | 2011-01-16 23:56:42 +0000 | [diff] [blame] | 491 | |
Daniel Dunbar | 662e8b5 | 2008-08-14 22:04:54 +0000 | [diff] [blame] | 492 | Ident_super = &PP.getIdentifierTable().get("super"); |
John Thompson | 82287d1 | 2010-02-05 00:12:22 +0000 | [diff] [blame] | 493 | |
David Blaikie | 4e4d084 | 2012-03-11 07:00:24 +0000 | [diff] [blame] | 494 | if (getLangOpts().AltiVec) { |
John Thompson | 82287d1 | 2010-02-05 00:12:22 +0000 | [diff] [blame] | 495 | Ident_vector = &PP.getIdentifierTable().get("vector"); |
| 496 | Ident_pixel = &PP.getIdentifierTable().get("pixel"); |
Bill Schmidt | 3e3d20b | 2013-07-03 20:54:09 +0000 | [diff] [blame] | 497 | Ident_bool = &PP.getIdentifierTable().get("bool"); |
John Thompson | 82287d1 | 2010-02-05 00:12:22 +0000 | [diff] [blame] | 498 | } |
Douglas Gregor | 0a0d2b1 | 2011-03-23 00:50:03 +0000 | [diff] [blame] | 499 | |
| 500 | Ident_introduced = 0; |
| 501 | Ident_deprecated = 0; |
| 502 | Ident_obsoleted = 0; |
Douglas Gregor | b53e417 | 2011-03-26 03:35:55 +0000 | [diff] [blame] | 503 | Ident_unavailable = 0; |
John Wiegley | 28bbe4b | 2011-04-28 01:08:34 +0000 | [diff] [blame] | 504 | |
Douglas Gregor | b57791e | 2011-10-21 03:57:52 +0000 | [diff] [blame] | 505 | Ident__except = 0; |
| 506 | |
John Wiegley | 28bbe4b | 2011-04-28 01:08:34 +0000 | [diff] [blame] | 507 | Ident__exception_code = Ident__exception_info = Ident__abnormal_termination = 0; |
| 508 | Ident___exception_code = Ident___exception_info = Ident___abnormal_termination = 0; |
| 509 | Ident_GetExceptionCode = Ident_GetExceptionInfo = Ident_AbnormalTermination = 0; |
| 510 | |
David Blaikie | 4e4d084 | 2012-03-11 07:00:24 +0000 | [diff] [blame] | 511 | if(getLangOpts().Borland) { |
John Wiegley | 28bbe4b | 2011-04-28 01:08:34 +0000 | [diff] [blame] | 512 | Ident__exception_info = PP.getIdentifierInfo("_exception_info"); |
| 513 | Ident___exception_info = PP.getIdentifierInfo("__exception_info"); |
| 514 | Ident_GetExceptionInfo = PP.getIdentifierInfo("GetExceptionInformation"); |
| 515 | Ident__exception_code = PP.getIdentifierInfo("_exception_code"); |
| 516 | Ident___exception_code = PP.getIdentifierInfo("__exception_code"); |
| 517 | Ident_GetExceptionCode = PP.getIdentifierInfo("GetExceptionCode"); |
| 518 | Ident__abnormal_termination = PP.getIdentifierInfo("_abnormal_termination"); |
| 519 | Ident___abnormal_termination = PP.getIdentifierInfo("__abnormal_termination"); |
| 520 | Ident_AbnormalTermination = PP.getIdentifierInfo("AbnormalTermination"); |
| 521 | |
| 522 | PP.SetPoisonReason(Ident__exception_code,diag::err_seh___except_block); |
| 523 | PP.SetPoisonReason(Ident___exception_code,diag::err_seh___except_block); |
| 524 | PP.SetPoisonReason(Ident_GetExceptionCode,diag::err_seh___except_block); |
| 525 | PP.SetPoisonReason(Ident__exception_info,diag::err_seh___except_filter); |
| 526 | PP.SetPoisonReason(Ident___exception_info,diag::err_seh___except_filter); |
| 527 | PP.SetPoisonReason(Ident_GetExceptionInfo,diag::err_seh___except_filter); |
| 528 | PP.SetPoisonReason(Ident__abnormal_termination,diag::err_seh___finally_block); |
| 529 | PP.SetPoisonReason(Ident___abnormal_termination,diag::err_seh___finally_block); |
| 530 | PP.SetPoisonReason(Ident_AbnormalTermination,diag::err_seh___finally_block); |
| 531 | } |
Douglas Gregor | c7be102 | 2012-11-05 23:58:27 +0000 | [diff] [blame] | 532 | |
| 533 | Actions.Initialize(); |
| 534 | |
| 535 | // Prime the lexer look-ahead. |
| 536 | ConsumeToken(); |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 537 | } |
| 538 | |
Benjamin Kramer | 13bb701 | 2012-04-14 12:14:03 +0000 | [diff] [blame] | 539 | namespace { |
| 540 | /// \brief RAIIObject to destroy the contents of a SmallVector of |
| 541 | /// TemplateIdAnnotation pointers and clear the vector. |
| 542 | class DestroyTemplateIdAnnotationsRAIIObj { |
| 543 | SmallVectorImpl<TemplateIdAnnotation *> &Container; |
| 544 | public: |
| 545 | DestroyTemplateIdAnnotationsRAIIObj(SmallVectorImpl<TemplateIdAnnotation *> |
| 546 | &Container) |
| 547 | : Container(Container) {} |
| 548 | |
| 549 | ~DestroyTemplateIdAnnotationsRAIIObj() { |
| 550 | for (SmallVectorImpl<TemplateIdAnnotation *>::iterator I = |
| 551 | Container.begin(), E = Container.end(); |
| 552 | I != E; ++I) |
| 553 | (*I)->Destroy(); |
| 554 | Container.clear(); |
| 555 | } |
| 556 | }; |
| 557 | } |
| 558 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 559 | /// ParseTopLevelDecl - Parse one top-level declaration, return whatever the |
| 560 | /// action tells us to. This returns true if the EOF was encountered. |
Chris Lattner | 682bf92 | 2009-03-29 16:50:03 +0000 | [diff] [blame] | 561 | bool Parser::ParseTopLevelDecl(DeclGroupPtrTy &Result) { |
Benjamin Kramer | 13bb701 | 2012-04-14 12:14:03 +0000 | [diff] [blame] | 562 | DestroyTemplateIdAnnotationsRAIIObj CleanupRAII(TemplateIds); |
Argyrios Kyrtzidis | b918d0f | 2011-01-17 18:58:44 +0000 | [diff] [blame] | 563 | |
Axel Naumann | e55329d | 2012-03-16 10:40:17 +0000 | [diff] [blame] | 564 | // Skip over the EOF token, flagging end of previous input for incremental |
| 565 | // processing |
| 566 | if (PP.isIncrementalProcessingEnabled() && Tok.is(tok::eof)) |
| 567 | ConsumeToken(); |
| 568 | |
Argyrios Kyrtzidis | b918d0f | 2011-01-17 18:58:44 +0000 | [diff] [blame] | 569 | while (Tok.is(tok::annot_pragma_unused)) |
| 570 | HandlePragmaUnused(); |
| 571 | |
Chris Lattner | 682bf92 | 2009-03-29 16:50:03 +0000 | [diff] [blame] | 572 | Result = DeclGroupPtrTy(); |
Chris Lattner | 9299f3f | 2008-08-23 03:19:52 +0000 | [diff] [blame] | 573 | if (Tok.is(tok::eof)) { |
Francois Pichet | 8387e2a | 2011-04-22 22:18:13 +0000 | [diff] [blame] | 574 | // Late template parsing can begin. |
David Blaikie | 4e4d084 | 2012-03-11 07:00:24 +0000 | [diff] [blame] | 575 | if (getLangOpts().DelayedTemplateParsing) |
Francois Pichet | 8387e2a | 2011-04-22 22:18:13 +0000 | [diff] [blame] | 576 | Actions.SetLateTemplateParser(LateTemplateParserCallback, this); |
Axel Naumann | e55329d | 2012-03-16 10:40:17 +0000 | [diff] [blame] | 577 | if (!PP.isIncrementalProcessingEnabled()) |
| 578 | Actions.ActOnEndOfTranslationUnit(); |
| 579 | //else don't tell Sema that we ended parsing: more input might come. |
Francois Pichet | 8387e2a | 2011-04-22 22:18:13 +0000 | [diff] [blame] | 580 | |
Chris Lattner | 9299f3f | 2008-08-23 03:19:52 +0000 | [diff] [blame] | 581 | return true; |
| 582 | } |
Mike Stump | a6f0177 | 2008-06-19 19:28:49 +0000 | [diff] [blame] | 583 | |
John McCall | 0b7e678 | 2011-03-24 11:26:52 +0000 | [diff] [blame] | 584 | ParsedAttributesWithRange attrs(AttrFactory); |
Richard Smith | 4e24f0f | 2013-01-02 12:01:23 +0000 | [diff] [blame] | 585 | MaybeParseCXX11Attributes(attrs); |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 586 | MaybeParseMicrosoftAttributes(attrs); |
Axel Naumann | e55329d | 2012-03-16 10:40:17 +0000 | [diff] [blame] | 587 | |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 588 | Result = ParseExternalDeclaration(attrs); |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 589 | return false; |
| 590 | } |
| 591 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 592 | /// ParseExternalDeclaration: |
Chris Lattner | 90b93d6 | 2008-12-08 21:59:01 +0000 | [diff] [blame] | 593 | /// |
Douglas Gregor | c19923d | 2008-11-21 16:10:08 +0000 | [diff] [blame] | 594 | /// external-declaration: [C99 6.9], declaration: [C++ dcl.dcl] |
Chris Lattner | c301815 | 2007-08-10 20:57:02 +0000 | [diff] [blame] | 595 | /// function-definition |
| 596 | /// declaration |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 597 | /// [GNU] asm-definition |
Chris Lattner | c301815 | 2007-08-10 20:57:02 +0000 | [diff] [blame] | 598 | /// [GNU] __extension__ external-declaration |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 599 | /// [OBJC] objc-class-definition |
| 600 | /// [OBJC] objc-class-declaration |
| 601 | /// [OBJC] objc-alias-declaration |
| 602 | /// [OBJC] objc-protocol-definition |
| 603 | /// [OBJC] objc-method-definition |
| 604 | /// [OBJC] @end |
Douglas Gregor | c19923d | 2008-11-21 16:10:08 +0000 | [diff] [blame] | 605 | /// [C++] linkage-specification |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 606 | /// [GNU] asm-definition: |
| 607 | /// simple-asm-expr ';' |
Richard Smith | 6b3d3e5 | 2013-02-20 19:22:51 +0000 | [diff] [blame] | 608 | /// [C++11] empty-declaration |
| 609 | /// [C++11] attribute-declaration |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 610 | /// |
Richard Smith | 6b3d3e5 | 2013-02-20 19:22:51 +0000 | [diff] [blame] | 611 | /// [C++11] empty-declaration: |
Douglas Gregor | a1d71ae | 2009-08-24 12:17:54 +0000 | [diff] [blame] | 612 | /// ';' |
| 613 | /// |
Douglas Gregor | 45f9655 | 2009-09-04 06:33:52 +0000 | [diff] [blame] | 614 | /// [C++0x/GNU] 'extern' 'template' declaration |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 615 | Parser::DeclGroupPtrTy |
| 616 | Parser::ParseExternalDeclaration(ParsedAttributesWithRange &attrs, |
| 617 | ParsingDeclSpec *DS) { |
Benjamin Kramer | 13bb701 | 2012-04-14 12:14:03 +0000 | [diff] [blame] | 618 | DestroyTemplateIdAnnotationsRAIIObj CleanupRAII(TemplateIds); |
Argyrios Kyrtzidis | 36d3680 | 2010-06-17 10:52:18 +0000 | [diff] [blame] | 619 | ParenBraceBracketBalancer BalancerRAIIObj(*this); |
Argyrios Kyrtzidis | 7d10087 | 2011-09-04 03:32:15 +0000 | [diff] [blame] | 620 | |
| 621 | if (PP.isCodeCompletionReached()) { |
| 622 | cutOffParsing(); |
| 623 | return DeclGroupPtrTy(); |
| 624 | } |
| 625 | |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 626 | Decl *SingleDecl = 0; |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 627 | switch (Tok.getKind()) { |
Rafael Espindola | 426fc94 | 2012-01-26 02:02:57 +0000 | [diff] [blame] | 628 | case tok::annot_pragma_vis: |
| 629 | HandlePragmaVisibility(); |
| 630 | return DeclGroupPtrTy(); |
Eli Friedman | aa5ab26 | 2012-02-23 23:47:16 +0000 | [diff] [blame] | 631 | case tok::annot_pragma_pack: |
| 632 | HandlePragmaPack(); |
| 633 | return DeclGroupPtrTy(); |
Eli Friedman | 9595c7e | 2012-10-04 02:36:51 +0000 | [diff] [blame] | 634 | case tok::annot_pragma_msstruct: |
| 635 | HandlePragmaMSStruct(); |
| 636 | return DeclGroupPtrTy(); |
| 637 | case tok::annot_pragma_align: |
| 638 | HandlePragmaAlign(); |
| 639 | return DeclGroupPtrTy(); |
| 640 | case tok::annot_pragma_weak: |
| 641 | HandlePragmaWeak(); |
| 642 | return DeclGroupPtrTy(); |
| 643 | case tok::annot_pragma_weakalias: |
| 644 | HandlePragmaWeakAlias(); |
| 645 | return DeclGroupPtrTy(); |
| 646 | case tok::annot_pragma_redefine_extname: |
| 647 | HandlePragmaRedefineExtname(); |
| 648 | return DeclGroupPtrTy(); |
| 649 | case tok::annot_pragma_fp_contract: |
| 650 | HandlePragmaFPContract(); |
| 651 | return DeclGroupPtrTy(); |
| 652 | case tok::annot_pragma_opencl_extension: |
| 653 | HandlePragmaOpenCLExtension(); |
| 654 | return DeclGroupPtrTy(); |
Alexey Bataev | c640058 | 2013-03-22 06:34:35 +0000 | [diff] [blame] | 655 | case tok::annot_pragma_openmp: |
| 656 | ParseOpenMPDeclarativeDirective(); |
| 657 | return DeclGroupPtrTy(); |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 658 | case tok::semi: |
Richard Smith | 6b3d3e5 | 2013-02-20 19:22:51 +0000 | [diff] [blame] | 659 | // Either a C++11 empty-declaration or attribute-declaration. |
Michael Han | 684aa73 | 2013-02-22 17:15:32 +0000 | [diff] [blame] | 660 | SingleDecl = Actions.ActOnEmptyDeclaration(getCurScope(), |
| 661 | attrs.getList(), |
| 662 | Tok.getLocation()); |
Richard Trieu | 4b0e6f1 | 2012-05-16 19:04:59 +0000 | [diff] [blame] | 663 | ConsumeExtraSemi(OutsideFunction); |
Michael Han | 684aa73 | 2013-02-22 17:15:32 +0000 | [diff] [blame] | 664 | break; |
Chris Lattner | 90b93d6 | 2008-12-08 21:59:01 +0000 | [diff] [blame] | 665 | case tok::r_brace: |
Nico Weber | 883692e | 2012-01-17 01:04:27 +0000 | [diff] [blame] | 666 | Diag(Tok, diag::err_extraneous_closing_brace); |
Chris Lattner | 90b93d6 | 2008-12-08 21:59:01 +0000 | [diff] [blame] | 667 | ConsumeBrace(); |
Chris Lattner | 682bf92 | 2009-03-29 16:50:03 +0000 | [diff] [blame] | 668 | return DeclGroupPtrTy(); |
Chris Lattner | 90b93d6 | 2008-12-08 21:59:01 +0000 | [diff] [blame] | 669 | case tok::eof: |
| 670 | Diag(Tok, diag::err_expected_external_declaration); |
Chris Lattner | 682bf92 | 2009-03-29 16:50:03 +0000 | [diff] [blame] | 671 | return DeclGroupPtrTy(); |
Chris Lattner | c301815 | 2007-08-10 20:57:02 +0000 | [diff] [blame] | 672 | case tok::kw___extension__: { |
Chris Lattner | c46d1a1 | 2008-10-20 06:45:43 +0000 | [diff] [blame] | 673 | // __extension__ silences extension warnings in the subexpression. |
| 674 | ExtensionRAIIObject O(Diags); // Use RAII to do this. |
Chris Lattner | 39146d6 | 2008-10-20 06:51:33 +0000 | [diff] [blame] | 675 | ConsumeToken(); |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 676 | return ParseExternalDeclaration(attrs); |
Chris Lattner | c301815 | 2007-08-10 20:57:02 +0000 | [diff] [blame] | 677 | } |
Anders Carlsson | dfab6cb | 2008-02-08 00:33:21 +0000 | [diff] [blame] | 678 | case tok::kw_asm: { |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 679 | ProhibitAttributes(attrs); |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 680 | |
Abramo Bagnara | 21e006e | 2011-03-03 14:20:18 +0000 | [diff] [blame] | 681 | SourceLocation StartLoc = Tok.getLocation(); |
| 682 | SourceLocation EndLoc; |
| 683 | ExprResult Result(ParseSimpleAsm(&EndLoc)); |
Mike Stump | a6f0177 | 2008-06-19 19:28:49 +0000 | [diff] [blame] | 684 | |
Anders Carlsson | 3f9424f | 2008-02-08 00:23:11 +0000 | [diff] [blame] | 685 | ExpectAndConsume(tok::semi, diag::err_expected_semi_after, |
| 686 | "top-level asm block"); |
Anders Carlsson | dfab6cb | 2008-02-08 00:33:21 +0000 | [diff] [blame] | 687 | |
Chris Lattner | 682bf92 | 2009-03-29 16:50:03 +0000 | [diff] [blame] | 688 | if (Result.isInvalid()) |
| 689 | return DeclGroupPtrTy(); |
Abramo Bagnara | 21e006e | 2011-03-03 14:20:18 +0000 | [diff] [blame] | 690 | SingleDecl = Actions.ActOnFileScopeAsmDecl(Result.get(), StartLoc, EndLoc); |
Chris Lattner | 682bf92 | 2009-03-29 16:50:03 +0000 | [diff] [blame] | 691 | break; |
Anders Carlsson | dfab6cb | 2008-02-08 00:33:21 +0000 | [diff] [blame] | 692 | } |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 693 | case tok::at: |
Fariborz Jahanian | 95ed778 | 2011-08-27 20:50:59 +0000 | [diff] [blame] | 694 | return ParseObjCAtDirectives(); |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 695 | case tok::minus: |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 696 | case tok::plus: |
David Blaikie | 4e4d084 | 2012-03-11 07:00:24 +0000 | [diff] [blame] | 697 | if (!getLangOpts().ObjC1) { |
Chris Lattner | 682bf92 | 2009-03-29 16:50:03 +0000 | [diff] [blame] | 698 | Diag(Tok, diag::err_expected_external_declaration); |
| 699 | ConsumeToken(); |
| 700 | return DeclGroupPtrTy(); |
| 701 | } |
| 702 | SingleDecl = ParseObjCMethodDefinition(); |
| 703 | break; |
Douglas Gregor | 791215b | 2009-09-21 20:51:25 +0000 | [diff] [blame] | 704 | case tok::code_completion: |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 705 | Actions.CodeCompleteOrdinaryName(getCurScope(), |
Argyrios Kyrtzidis | 849639d | 2012-02-07 16:50:53 +0000 | [diff] [blame] | 706 | CurParsedObjCImpl? Sema::PCC_ObjCImplementation |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 707 | : Sema::PCC_Namespace); |
Argyrios Kyrtzidis | 7d10087 | 2011-09-04 03:32:15 +0000 | [diff] [blame] | 708 | cutOffParsing(); |
| 709 | return DeclGroupPtrTy(); |
Douglas Gregor | f780abc | 2008-12-30 03:27:21 +0000 | [diff] [blame] | 710 | case tok::kw_using: |
Chris Lattner | 8f08cb7 | 2007-08-25 06:57:03 +0000 | [diff] [blame] | 711 | case tok::kw_namespace: |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 712 | case tok::kw_typedef: |
Douglas Gregor | adcac88 | 2008-12-01 23:54:00 +0000 | [diff] [blame] | 713 | case tok::kw_template: |
| 714 | case tok::kw_export: // As in 'export template' |
Anders Carlsson | 511d7ab | 2009-03-11 16:27:10 +0000 | [diff] [blame] | 715 | case tok::kw_static_assert: |
Peter Collingbourne | c6eb44b | 2011-04-15 00:35:57 +0000 | [diff] [blame] | 716 | case tok::kw__Static_assert: |
Chad Rosier | 26d6023 | 2012-04-25 22:51:41 +0000 | [diff] [blame] | 717 | // A function definition cannot start with any of these keywords. |
Chris Lattner | 97144fc | 2009-04-02 04:16:50 +0000 | [diff] [blame] | 718 | { |
| 719 | SourceLocation DeclEnd; |
Benjamin Kramer | 4e28d9e | 2012-08-23 22:51:59 +0000 | [diff] [blame] | 720 | StmtVector Stmts; |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 721 | return ParseDeclaration(Stmts, Declarator::FileContext, DeclEnd, attrs); |
Chris Lattner | 97144fc | 2009-04-02 04:16:50 +0000 | [diff] [blame] | 722 | } |
Sebastian Redl | d078e64 | 2010-08-27 23:12:46 +0000 | [diff] [blame] | 723 | |
Douglas Gregor | 7306ebf | 2010-12-01 20:32:20 +0000 | [diff] [blame] | 724 | case tok::kw_static: |
| 725 | // Parse (then ignore) 'static' prior to a template instantiation. This is |
| 726 | // a GCC extension that we intentionally do not support. |
David Blaikie | 4e4d084 | 2012-03-11 07:00:24 +0000 | [diff] [blame] | 727 | if (getLangOpts().CPlusPlus && NextToken().is(tok::kw_template)) { |
Douglas Gregor | 7306ebf | 2010-12-01 20:32:20 +0000 | [diff] [blame] | 728 | Diag(ConsumeToken(), diag::warn_static_inline_explicit_inst_ignored) |
| 729 | << 0; |
Sebastian Redl | d078e64 | 2010-08-27 23:12:46 +0000 | [diff] [blame] | 730 | SourceLocation DeclEnd; |
Benjamin Kramer | 4e28d9e | 2012-08-23 22:51:59 +0000 | [diff] [blame] | 731 | StmtVector Stmts; |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 732 | return ParseDeclaration(Stmts, Declarator::FileContext, DeclEnd, attrs); |
Douglas Gregor | 7306ebf | 2010-12-01 20:32:20 +0000 | [diff] [blame] | 733 | } |
| 734 | goto dont_know; |
| 735 | |
| 736 | case tok::kw_inline: |
David Blaikie | 4e4d084 | 2012-03-11 07:00:24 +0000 | [diff] [blame] | 737 | if (getLangOpts().CPlusPlus) { |
Douglas Gregor | 7306ebf | 2010-12-01 20:32:20 +0000 | [diff] [blame] | 738 | tok::TokenKind NextKind = NextToken().getKind(); |
| 739 | |
| 740 | // Inline namespaces. Allowed as an extension even in C++03. |
| 741 | if (NextKind == tok::kw_namespace) { |
| 742 | SourceLocation DeclEnd; |
Benjamin Kramer | 4e28d9e | 2012-08-23 22:51:59 +0000 | [diff] [blame] | 743 | StmtVector Stmts; |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 744 | return ParseDeclaration(Stmts, Declarator::FileContext, DeclEnd, attrs); |
Douglas Gregor | 7306ebf | 2010-12-01 20:32:20 +0000 | [diff] [blame] | 745 | } |
| 746 | |
| 747 | // Parse (then ignore) 'inline' prior to a template instantiation. This is |
| 748 | // a GCC extension that we intentionally do not support. |
| 749 | if (NextKind == tok::kw_template) { |
| 750 | Diag(ConsumeToken(), diag::warn_static_inline_explicit_inst_ignored) |
| 751 | << 1; |
| 752 | SourceLocation DeclEnd; |
Benjamin Kramer | 4e28d9e | 2012-08-23 22:51:59 +0000 | [diff] [blame] | 753 | StmtVector Stmts; |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 754 | return ParseDeclaration(Stmts, Declarator::FileContext, DeclEnd, attrs); |
Douglas Gregor | 7306ebf | 2010-12-01 20:32:20 +0000 | [diff] [blame] | 755 | } |
Sebastian Redl | d078e64 | 2010-08-27 23:12:46 +0000 | [diff] [blame] | 756 | } |
| 757 | goto dont_know; |
| 758 | |
Douglas Gregor | 45f9655 | 2009-09-04 06:33:52 +0000 | [diff] [blame] | 759 | case tok::kw_extern: |
David Blaikie | 4e4d084 | 2012-03-11 07:00:24 +0000 | [diff] [blame] | 760 | if (getLangOpts().CPlusPlus && NextToken().is(tok::kw_template)) { |
Douglas Gregor | 45f9655 | 2009-09-04 06:33:52 +0000 | [diff] [blame] | 761 | // Extern templates |
| 762 | SourceLocation ExternLoc = ConsumeToken(); |
| 763 | SourceLocation TemplateLoc = ConsumeToken(); |
Richard Smith | 80ad52f | 2013-01-02 11:42:31 +0000 | [diff] [blame] | 764 | Diag(ExternLoc, getLangOpts().CPlusPlus11 ? |
Richard Smith | 9324583 | 2011-10-20 18:35:58 +0000 | [diff] [blame] | 765 | diag::warn_cxx98_compat_extern_template : |
| 766 | diag::ext_extern_template) << SourceRange(ExternLoc, TemplateLoc); |
Douglas Gregor | 45f9655 | 2009-09-04 06:33:52 +0000 | [diff] [blame] | 767 | SourceLocation DeclEnd; |
| 768 | return Actions.ConvertDeclToDeclGroup( |
Argyrios Kyrtzidis | 9241057 | 2011-12-23 02:16:45 +0000 | [diff] [blame] | 769 | ParseExplicitInstantiation(Declarator::FileContext, |
| 770 | ExternLoc, TemplateLoc, DeclEnd)); |
Douglas Gregor | 45f9655 | 2009-09-04 06:33:52 +0000 | [diff] [blame] | 771 | } |
Douglas Gregor | 45f9655 | 2009-09-04 06:33:52 +0000 | [diff] [blame] | 772 | // FIXME: Detect C++ linkage specifications here? |
Sebastian Redl | d078e64 | 2010-08-27 23:12:46 +0000 | [diff] [blame] | 773 | goto dont_know; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 774 | |
Francois Pichet | f986038 | 2011-05-07 17:30:27 +0000 | [diff] [blame] | 775 | case tok::kw___if_exists: |
| 776 | case tok::kw___if_not_exists: |
Francois Pichet | 563a645 | 2011-05-25 10:19:49 +0000 | [diff] [blame] | 777 | ParseMicrosoftIfExistsExternalDeclaration(); |
Francois Pichet | f986038 | 2011-05-07 17:30:27 +0000 | [diff] [blame] | 778 | return DeclGroupPtrTy(); |
Douglas Gregor | 6aa52ec | 2011-08-26 23:56:07 +0000 | [diff] [blame] | 779 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 780 | default: |
Sebastian Redl | d078e64 | 2010-08-27 23:12:46 +0000 | [diff] [blame] | 781 | dont_know: |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 782 | // We can't tell whether this is a function-definition or declaration yet. |
Rafael Espindola | 20af49a | 2012-12-29 01:09:46 +0000 | [diff] [blame] | 783 | return ParseDeclarationOrFunctionDefinition(attrs, DS); |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 784 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 785 | |
Chris Lattner | 682bf92 | 2009-03-29 16:50:03 +0000 | [diff] [blame] | 786 | // This routine returns a DeclGroup, if the thing we parsed only contains a |
| 787 | // single decl, convert it now. |
| 788 | return Actions.ConvertDeclToDeclGroup(SingleDecl); |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 789 | } |
| 790 | |
Douglas Gregor | 1426e53 | 2009-05-12 21:31:51 +0000 | [diff] [blame] | 791 | /// \brief Determine whether the current token, if it occurs after a |
| 792 | /// declarator, continues a declaration or declaration list. |
Sean Hunt | e4246a6 | 2011-05-12 06:15:49 +0000 | [diff] [blame] | 793 | bool Parser::isDeclarationAfterDeclarator() { |
| 794 | // Check for '= delete' or '= default' |
David Blaikie | 4e4d084 | 2012-03-11 07:00:24 +0000 | [diff] [blame] | 795 | if (getLangOpts().CPlusPlus && Tok.is(tok::equal)) { |
Sean Hunt | e4246a6 | 2011-05-12 06:15:49 +0000 | [diff] [blame] | 796 | const Token &KW = NextToken(); |
| 797 | if (KW.is(tok::kw_default) || KW.is(tok::kw_delete)) |
| 798 | return false; |
| 799 | } |
Fariborz Jahanian | 6c89eaf | 2012-07-02 23:37:09 +0000 | [diff] [blame] | 800 | |
Douglas Gregor | 1426e53 | 2009-05-12 21:31:51 +0000 | [diff] [blame] | 801 | return Tok.is(tok::equal) || // int X()= -> not a function def |
| 802 | Tok.is(tok::comma) || // int X(), -> not a function def |
| 803 | Tok.is(tok::semi) || // int X(); -> not a function def |
| 804 | Tok.is(tok::kw_asm) || // int X() __asm__ -> not a function def |
| 805 | Tok.is(tok::kw___attribute) || // int X() __attr__ -> not a function def |
David Blaikie | 4e4d084 | 2012-03-11 07:00:24 +0000 | [diff] [blame] | 806 | (getLangOpts().CPlusPlus && |
Fariborz Jahanian | 39700f8 | 2012-07-05 19:34:20 +0000 | [diff] [blame] | 807 | Tok.is(tok::l_paren)); // int X(0) -> not a function def [C++] |
Douglas Gregor | 1426e53 | 2009-05-12 21:31:51 +0000 | [diff] [blame] | 808 | } |
| 809 | |
| 810 | /// \brief Determine whether the current token, if it occurs after a |
| 811 | /// declarator, indicates the start of a function definition. |
Chris Lattner | 004659a | 2010-07-11 22:42:07 +0000 | [diff] [blame] | 812 | bool Parser::isStartOfFunctionDefinition(const ParsingDeclarator &Declarator) { |
Abramo Bagnara | 075f8f1 | 2010-12-10 16:29:40 +0000 | [diff] [blame] | 813 | assert(Declarator.isFunctionDeclarator() && "Isn't a function declarator"); |
Chris Lattner | 5d1c619 | 2009-12-06 18:34:27 +0000 | [diff] [blame] | 814 | if (Tok.is(tok::l_brace)) // int X() {} |
| 815 | return true; |
| 816 | |
Chris Lattner | 004659a | 2010-07-11 22:42:07 +0000 | [diff] [blame] | 817 | // Handle K&R C argument lists: int X(f) int f; {} |
David Blaikie | 4e4d084 | 2012-03-11 07:00:24 +0000 | [diff] [blame] | 818 | if (!getLangOpts().CPlusPlus && |
Abramo Bagnara | 075f8f1 | 2010-12-10 16:29:40 +0000 | [diff] [blame] | 819 | Declarator.getFunctionTypeInfo().isKNRPrototype()) |
Chris Lattner | 004659a | 2010-07-11 22:42:07 +0000 | [diff] [blame] | 820 | return isDeclarationSpecifier(); |
Sean Hunt | e4246a6 | 2011-05-12 06:15:49 +0000 | [diff] [blame] | 821 | |
David Blaikie | 4e4d084 | 2012-03-11 07:00:24 +0000 | [diff] [blame] | 822 | if (getLangOpts().CPlusPlus && Tok.is(tok::equal)) { |
Sean Hunt | e4246a6 | 2011-05-12 06:15:49 +0000 | [diff] [blame] | 823 | const Token &KW = NextToken(); |
| 824 | return KW.is(tok::kw_default) || KW.is(tok::kw_delete); |
| 825 | } |
Chris Lattner | 004659a | 2010-07-11 22:42:07 +0000 | [diff] [blame] | 826 | |
Chris Lattner | 5d1c619 | 2009-12-06 18:34:27 +0000 | [diff] [blame] | 827 | return Tok.is(tok::colon) || // X() : Base() {} (used for ctors) |
| 828 | Tok.is(tok::kw_try); // X() try { ... } |
Douglas Gregor | 1426e53 | 2009-05-12 21:31:51 +0000 | [diff] [blame] | 829 | } |
| 830 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 831 | /// ParseDeclarationOrFunctionDefinition - Parse either a function-definition or |
| 832 | /// a declaration. We can't tell which we have until we read up to the |
Douglas Gregor | c4b4e7b | 2008-12-24 02:52:09 +0000 | [diff] [blame] | 833 | /// compound-statement in function-definition. TemplateParams, if |
| 834 | /// non-NULL, provides the template parameters when we're parsing a |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 835 | /// C++ template-declaration. |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 836 | /// |
| 837 | /// function-definition: [C99 6.9.1] |
Chris Lattner | a798ebc | 2008-04-05 05:52:15 +0000 | [diff] [blame] | 838 | /// decl-specs declarator declaration-list[opt] compound-statement |
| 839 | /// [C90] function-definition: [C99 6.7.1] - implicit int result |
Mike Stump | a6f0177 | 2008-06-19 19:28:49 +0000 | [diff] [blame] | 840 | /// [C90] decl-specs[opt] declarator declaration-list[opt] compound-statement |
Chris Lattner | a798ebc | 2008-04-05 05:52:15 +0000 | [diff] [blame] | 841 | /// |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 842 | /// declaration: [C99 6.7] |
Chris Lattner | 697e15f | 2007-08-22 06:06:56 +0000 | [diff] [blame] | 843 | /// declaration-specifiers init-declarator-list[opt] ';' |
| 844 | /// [!C99] init-declarator-list ';' [TODO: warn in c99 mode] |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 845 | /// [OMP] threadprivate-directive [TODO] |
| 846 | /// |
Chris Lattner | 682bf92 | 2009-03-29 16:50:03 +0000 | [diff] [blame] | 847 | Parser::DeclGroupPtrTy |
Sean Hunt | 2edf0a2 | 2012-06-23 05:07:58 +0000 | [diff] [blame] | 848 | Parser::ParseDeclOrFunctionDefInternal(ParsedAttributesWithRange &attrs, |
| 849 | ParsingDeclSpec &DS, |
| 850 | AccessSpecifier AS) { |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 851 | // Parse the common declaration-specifiers piece. |
Douglas Gregor | 0efc2c1 | 2010-01-13 17:31:36 +0000 | [diff] [blame] | 852 | ParseDeclarationSpecifiers(DS, ParsedTemplateInfo(), AS, DSC_top_level); |
Mike Stump | a6f0177 | 2008-06-19 19:28:49 +0000 | [diff] [blame] | 853 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 854 | // C99 6.7.2.3p6: Handle "struct-or-union identifier;", "enum { X };" |
| 855 | // declaration-specifiers init-declarator-list[opt] ';' |
Chris Lattner | 0007322 | 2007-10-09 17:23:58 +0000 | [diff] [blame] | 856 | if (Tok.is(tok::semi)) { |
Sean Hunt | 2edf0a2 | 2012-06-23 05:07:58 +0000 | [diff] [blame] | 857 | ProhibitAttributes(attrs); |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 858 | ConsumeToken(); |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 859 | Decl *TheDecl = Actions.ParsedFreeStandingDeclSpec(getCurScope(), AS, DS); |
John McCall | 54abf7d | 2009-11-04 02:18:39 +0000 | [diff] [blame] | 860 | DS.complete(TheDecl); |
Chris Lattner | 682bf92 | 2009-03-29 16:50:03 +0000 | [diff] [blame] | 861 | return Actions.ConvertDeclToDeclGroup(TheDecl); |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 862 | } |
Mike Stump | a6f0177 | 2008-06-19 19:28:49 +0000 | [diff] [blame] | 863 | |
Sean Hunt | 2edf0a2 | 2012-06-23 05:07:58 +0000 | [diff] [blame] | 864 | DS.takeAttributesFrom(attrs); |
| 865 | |
Daniel Dunbar | 246e70f | 2008-09-26 04:48:09 +0000 | [diff] [blame] | 866 | // ObjC2 allows prefix attributes on class interfaces and protocols. |
| 867 | // FIXME: This still needs better diagnostics. We should only accept |
| 868 | // attributes here, no types, etc. |
David Blaikie | 4e4d084 | 2012-03-11 07:00:24 +0000 | [diff] [blame] | 869 | if (getLangOpts().ObjC2 && Tok.is(tok::at)) { |
Steve Naroff | dac269b | 2007-08-20 21:31:48 +0000 | [diff] [blame] | 870 | SourceLocation AtLoc = ConsumeToken(); // the "@" |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 871 | if (!Tok.isObjCAtKeyword(tok::objc_interface) && |
Daniel Dunbar | 246e70f | 2008-09-26 04:48:09 +0000 | [diff] [blame] | 872 | !Tok.isObjCAtKeyword(tok::objc_protocol)) { |
| 873 | Diag(Tok, diag::err_objc_unexpected_attr); |
Chris Lattner | cb53b36 | 2007-12-27 19:57:00 +0000 | [diff] [blame] | 874 | SkipUntil(tok::semi); // FIXME: better skip? |
Chris Lattner | 682bf92 | 2009-03-29 16:50:03 +0000 | [diff] [blame] | 875 | return DeclGroupPtrTy(); |
Chris Lattner | cb53b36 | 2007-12-27 19:57:00 +0000 | [diff] [blame] | 876 | } |
John McCall | d8ac057 | 2009-11-03 19:26:08 +0000 | [diff] [blame] | 877 | |
John McCall | 54abf7d | 2009-11-04 02:18:39 +0000 | [diff] [blame] | 878 | DS.abort(); |
| 879 | |
Fariborz Jahanian | 0de2ae2 | 2008-01-02 19:17:38 +0000 | [diff] [blame] | 880 | const char *PrevSpec = 0; |
John McCall | fec5401 | 2009-08-03 20:12:06 +0000 | [diff] [blame] | 881 | unsigned DiagID; |
| 882 | if (DS.SetTypeSpecType(DeclSpec::TST_unspecified, AtLoc, PrevSpec, DiagID)) |
| 883 | Diag(AtLoc, DiagID) << PrevSpec; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 884 | |
Daniel Dunbar | 246e70f | 2008-09-26 04:48:09 +0000 | [diff] [blame] | 885 | if (Tok.isObjCAtKeyword(tok::objc_protocol)) |
Douglas Gregor | bd9482d | 2012-01-01 21:23:57 +0000 | [diff] [blame] | 886 | return ParseObjCAtProtocolDeclaration(AtLoc, DS.getAttributes()); |
| 887 | |
| 888 | return Actions.ConvertDeclToDeclGroup( |
| 889 | ParseObjCAtInterfaceDeclaration(AtLoc, DS.getAttributes())); |
Steve Naroff | dac269b | 2007-08-20 21:31:48 +0000 | [diff] [blame] | 890 | } |
Mike Stump | a6f0177 | 2008-06-19 19:28:49 +0000 | [diff] [blame] | 891 | |
Chris Lattner | c6fdc34 | 2008-01-12 07:05:38 +0000 | [diff] [blame] | 892 | // If the declspec consisted only of 'extern' and we have a string |
| 893 | // literal following it, this must be a C++ linkage specifier like |
| 894 | // 'extern "C"'. |
David Blaikie | 4e4d084 | 2012-03-11 07:00:24 +0000 | [diff] [blame] | 895 | if (Tok.is(tok::string_literal) && getLangOpts().CPlusPlus && |
Chris Lattner | c6fdc34 | 2008-01-12 07:05:38 +0000 | [diff] [blame] | 896 | DS.getStorageClassSpec() == DeclSpec::SCS_extern && |
Chris Lattner | 682bf92 | 2009-03-29 16:50:03 +0000 | [diff] [blame] | 897 | DS.getParsedSpecifiers() == DeclSpec::PQ_StorageClassSpecifier) { |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 898 | Decl *TheDecl = ParseLinkage(DS, Declarator::FileContext); |
Chris Lattner | 682bf92 | 2009-03-29 16:50:03 +0000 | [diff] [blame] | 899 | return Actions.ConvertDeclToDeclGroup(TheDecl); |
| 900 | } |
Chris Lattner | c6fdc34 | 2008-01-12 07:05:38 +0000 | [diff] [blame] | 901 | |
John McCall | d8ac057 | 2009-11-03 19:26:08 +0000 | [diff] [blame] | 902 | return ParseDeclGroup(DS, Declarator::FileContext, true); |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 903 | } |
| 904 | |
Fariborz Jahanian | 3acd9aa | 2009-12-09 21:39:38 +0000 | [diff] [blame] | 905 | Parser::DeclGroupPtrTy |
Sean Hunt | 2edf0a2 | 2012-06-23 05:07:58 +0000 | [diff] [blame] | 906 | Parser::ParseDeclarationOrFunctionDefinition(ParsedAttributesWithRange &attrs, |
| 907 | ParsingDeclSpec *DS, |
Fariborz Jahanian | 3acd9aa | 2009-12-09 21:39:38 +0000 | [diff] [blame] | 908 | AccessSpecifier AS) { |
Sean Hunt | 2edf0a2 | 2012-06-23 05:07:58 +0000 | [diff] [blame] | 909 | if (DS) { |
| 910 | return ParseDeclOrFunctionDefInternal(attrs, *DS, AS); |
| 911 | } else { |
| 912 | ParsingDeclSpec PDS(*this); |
| 913 | // Must temporarily exit the objective-c container scope for |
| 914 | // parsing c constructs and re-enter objc container scope |
| 915 | // afterwards. |
| 916 | ObjCDeclContextSwitch ObjCDC(*this); |
| 917 | |
| 918 | return ParseDeclOrFunctionDefInternal(attrs, PDS, AS); |
| 919 | } |
Fariborz Jahanian | 3acd9aa | 2009-12-09 21:39:38 +0000 | [diff] [blame] | 920 | } |
| 921 | |
Faisal Vali | 32b5ca0 | 2013-11-01 02:01:01 +0000 | [diff] [blame] | 922 | |
| 923 | static inline bool isFunctionDeclaratorRequiringReturnTypeDeduction( |
| 924 | const Declarator &D) { |
| 925 | if (!D.isFunctionDeclarator() || !D.getDeclSpec().containsPlaceholderType()) |
| 926 | return false; |
| 927 | for (unsigned I = 0, E = D.getNumTypeObjects(); I != E; ++I) { |
| 928 | unsigned chunkIndex = E - I - 1; |
| 929 | const DeclaratorChunk &DeclType = D.getTypeObject(chunkIndex); |
| 930 | if (DeclType.Kind == DeclaratorChunk::Function) { |
| 931 | const DeclaratorChunk::FunctionTypeInfo &FTI = DeclType.Fun; |
| 932 | if (!FTI.hasTrailingReturnType()) |
| 933 | return true; |
| 934 | QualType TrailingRetType = FTI.getTrailingReturnType().get(); |
| 935 | return TrailingRetType->getCanonicalTypeInternal() |
| 936 | ->getContainedAutoType(); |
| 937 | } |
| 938 | } |
| 939 | return false; |
| 940 | } |
| 941 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 942 | /// ParseFunctionDefinition - We parsed and verified that the specified |
| 943 | /// Declarator is well formed. If this is a K&R-style function, read the |
| 944 | /// parameters declaration-list, then start the compound-statement. |
| 945 | /// |
Chris Lattner | a798ebc | 2008-04-05 05:52:15 +0000 | [diff] [blame] | 946 | /// function-definition: [C99 6.9.1] |
| 947 | /// decl-specs declarator declaration-list[opt] compound-statement |
| 948 | /// [C90] function-definition: [C99 6.7.1] - implicit int result |
Mike Stump | a6f0177 | 2008-06-19 19:28:49 +0000 | [diff] [blame] | 949 | /// [C90] decl-specs[opt] declarator declaration-list[opt] compound-statement |
Douglas Gregor | 7ad8390 | 2008-11-05 04:29:56 +0000 | [diff] [blame] | 950 | /// [C++] function-definition: [C++ 8.4] |
Chris Lattner | 23c4b18 | 2009-03-29 17:18:04 +0000 | [diff] [blame] | 951 | /// decl-specifier-seq[opt] declarator ctor-initializer[opt] |
| 952 | /// function-body |
Douglas Gregor | 7ad8390 | 2008-11-05 04:29:56 +0000 | [diff] [blame] | 953 | /// [C++] function-definition: [C++ 8.4] |
Sebastian Redl | d3a413d | 2009-04-26 20:35:05 +0000 | [diff] [blame] | 954 | /// decl-specifier-seq[opt] declarator function-try-block |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 955 | /// |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 956 | Decl *Parser::ParseFunctionDefinition(ParsingDeclarator &D, |
DeLesley Hutchins | c24a233 | 2012-02-16 16:50:43 +0000 | [diff] [blame] | 957 | const ParsedTemplateInfo &TemplateInfo, |
| 958 | LateParsedAttrList *LateParsedAttrs) { |
John Wiegley | 28bbe4b | 2011-04-28 01:08:34 +0000 | [diff] [blame] | 959 | // Poison the SEH identifiers so they are flagged as illegal in function bodies |
| 960 | PoisonSEHIdentifiersRAIIObject PoisonSEHIdentifiers(*this, true); |
Abramo Bagnara | 075f8f1 | 2010-12-10 16:29:40 +0000 | [diff] [blame] | 961 | const DeclaratorChunk::FunctionTypeInfo &FTI = D.getFunctionTypeInfo(); |
Mike Stump | a6f0177 | 2008-06-19 19:28:49 +0000 | [diff] [blame] | 962 | |
Chris Lattner | a798ebc | 2008-04-05 05:52:15 +0000 | [diff] [blame] | 963 | // If this is C90 and the declspecs were completely missing, fudge in an |
| 964 | // implicit int. We do this here because this is the only place where |
| 965 | // declaration-specifiers are completely optional in the grammar. |
David Blaikie | 4e4d084 | 2012-03-11 07:00:24 +0000 | [diff] [blame] | 966 | if (getLangOpts().ImplicitInt && D.getDeclSpec().isEmpty()) { |
Chris Lattner | a798ebc | 2008-04-05 05:52:15 +0000 | [diff] [blame] | 967 | const char *PrevSpec; |
John McCall | fec5401 | 2009-08-03 20:12:06 +0000 | [diff] [blame] | 968 | unsigned DiagID; |
Chris Lattner | 31c2868 | 2008-10-20 02:01:34 +0000 | [diff] [blame] | 969 | D.getMutableDeclSpec().SetTypeSpecType(DeclSpec::TST_int, |
| 970 | D.getIdentifierLoc(), |
John McCall | fec5401 | 2009-08-03 20:12:06 +0000 | [diff] [blame] | 971 | PrevSpec, DiagID); |
Sebastian Redl | ab197ba | 2009-02-09 18:23:29 +0000 | [diff] [blame] | 972 | D.SetRangeBegin(D.getDeclSpec().getSourceRange().getBegin()); |
Chris Lattner | a798ebc | 2008-04-05 05:52:15 +0000 | [diff] [blame] | 973 | } |
Mike Stump | a6f0177 | 2008-06-19 19:28:49 +0000 | [diff] [blame] | 974 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 975 | // If this declaration was formed with a K&R-style identifier list for the |
| 976 | // arguments, parse declarations for all of the args next. |
| 977 | // int foo(a,b) int a; float b; {} |
Chris Lattner | 004659a | 2010-07-11 22:42:07 +0000 | [diff] [blame] | 978 | if (FTI.isKNRPrototype()) |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 979 | ParseKNRParamDeclarations(D); |
| 980 | |
Douglas Gregor | 7ad8390 | 2008-11-05 04:29:56 +0000 | [diff] [blame] | 981 | // We should have either an opening brace or, in a C++ constructor, |
| 982 | // we may have a colon. |
Douglas Gregor | 758afbc | 2011-02-04 11:57:16 +0000 | [diff] [blame] | 983 | if (Tok.isNot(tok::l_brace) && |
David Blaikie | 4e4d084 | 2012-03-11 07:00:24 +0000 | [diff] [blame] | 984 | (!getLangOpts().CPlusPlus || |
Sean Hunt | cd10dec | 2011-05-23 23:14:04 +0000 | [diff] [blame] | 985 | (Tok.isNot(tok::colon) && Tok.isNot(tok::kw_try) && |
| 986 | Tok.isNot(tok::equal)))) { |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 987 | Diag(Tok, diag::err_expected_fn_body); |
| 988 | |
| 989 | // Skip over garbage, until we get to '{'. Don't eat the '{'. |
| 990 | SkipUntil(tok::l_brace, true, true); |
Mike Stump | a6f0177 | 2008-06-19 19:28:49 +0000 | [diff] [blame] | 991 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 992 | // If we didn't find the '{', bail out. |
Chris Lattner | 0007322 | 2007-10-09 17:23:58 +0000 | [diff] [blame] | 993 | if (Tok.isNot(tok::l_brace)) |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 994 | return 0; |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 995 | } |
Mike Stump | a6f0177 | 2008-06-19 19:28:49 +0000 | [diff] [blame] | 996 | |
DeLesley Hutchins | c24a233 | 2012-02-16 16:50:43 +0000 | [diff] [blame] | 997 | // Check to make sure that any normal attributes are allowed to be on |
| 998 | // a definition. Late parsed attributes are checked at the end. |
| 999 | if (Tok.isNot(tok::equal)) { |
| 1000 | AttributeList *DtorAttrs = D.getAttributes(); |
| 1001 | while (DtorAttrs) { |
Richard Smith | cd8ab51 | 2013-01-17 01:30:42 +0000 | [diff] [blame] | 1002 | if (!IsThreadSafetyAttribute(DtorAttrs->getName()->getName()) && |
| 1003 | !DtorAttrs->isCXX11Attribute()) { |
DeLesley Hutchins | c24a233 | 2012-02-16 16:50:43 +0000 | [diff] [blame] | 1004 | Diag(DtorAttrs->getLoc(), diag::warn_attribute_on_function_definition) |
| 1005 | << DtorAttrs->getName()->getName(); |
| 1006 | } |
| 1007 | DtorAttrs = DtorAttrs->getNext(); |
| 1008 | } |
| 1009 | } |
| 1010 | |
Francois Pichet | 8387e2a | 2011-04-22 22:18:13 +0000 | [diff] [blame] | 1011 | // In delayed template parsing mode, for function template we consume the |
| 1012 | // tokens and store them for late parsing at the end of the translation unit. |
David Majnemer | 645526c | 2013-10-23 21:31:20 +0000 | [diff] [blame] | 1013 | if (getLangOpts().DelayedTemplateParsing && Tok.isNot(tok::equal) && |
| 1014 | TemplateInfo.Kind == ParsedTemplateInfo::Template && |
Faisal Vali | 32b5ca0 | 2013-11-01 02:01:01 +0000 | [diff] [blame] | 1015 | !D.getDeclSpec().isConstexprSpecified() && |
| 1016 | !isFunctionDeclaratorRequiringReturnTypeDeduction(D)) { |
Benjamin Kramer | 5354e77 | 2012-08-23 23:38:35 +0000 | [diff] [blame] | 1017 | MultiTemplateParamsArg TemplateParameterLists(*TemplateInfo.TemplateParams); |
Francois Pichet | 8387e2a | 2011-04-22 22:18:13 +0000 | [diff] [blame] | 1018 | |
| 1019 | ParseScope BodyScope(this, Scope::FnScope|Scope::DeclScope); |
| 1020 | Scope *ParentScope = getCurScope()->getParent(); |
| 1021 | |
Douglas Gregor | 45fa560 | 2011-11-07 20:56:01 +0000 | [diff] [blame] | 1022 | D.setFunctionDefinitionKind(FDK_Definition); |
Francois Pichet | 8387e2a | 2011-04-22 22:18:13 +0000 | [diff] [blame] | 1023 | Decl *DP = Actions.HandleDeclarator(ParentScope, D, |
Benjamin Kramer | 3fe198b | 2012-08-23 21:35:17 +0000 | [diff] [blame] | 1024 | TemplateParameterLists); |
Francois Pichet | 8387e2a | 2011-04-22 22:18:13 +0000 | [diff] [blame] | 1025 | D.complete(DP); |
| 1026 | D.getMutableDeclSpec().abort(); |
| 1027 | |
Richard Smith | ac32d90 | 2013-08-07 21:41:30 +0000 | [diff] [blame] | 1028 | CachedTokens Toks; |
| 1029 | LexTemplateFunctionForLateParsing(Toks); |
Francois Pichet | 8387e2a | 2011-04-22 22:18:13 +0000 | [diff] [blame] | 1030 | |
Richard Smith | ac32d90 | 2013-08-07 21:41:30 +0000 | [diff] [blame] | 1031 | if (DP) { |
Francois Pichet | 8387e2a | 2011-04-22 22:18:13 +0000 | [diff] [blame] | 1032 | FunctionDecl *FnD = 0; |
| 1033 | if (FunctionTemplateDecl *FunTmpl = dyn_cast<FunctionTemplateDecl>(DP)) |
| 1034 | FnD = FunTmpl->getTemplatedDecl(); |
| 1035 | else |
| 1036 | FnD = cast<FunctionDecl>(DP); |
| 1037 | |
Richard Smith | ac32d90 | 2013-08-07 21:41:30 +0000 | [diff] [blame] | 1038 | Actions.CheckForFunctionRedefinition(FnD); |
| 1039 | Actions.MarkAsLateParsedTemplate(FnD, DP, Toks); |
Francois Pichet | 8387e2a | 2011-04-22 22:18:13 +0000 | [diff] [blame] | 1040 | } |
| 1041 | return DP; |
| 1042 | } |
Fariborz Jahanian | 2eb362b | 2012-08-10 18:10:56 +0000 | [diff] [blame] | 1043 | else if (CurParsedObjCImpl && |
Fariborz Jahanian | 9e5df31 | 2012-08-10 21:15:06 +0000 | [diff] [blame] | 1044 | !TemplateInfo.TemplateParams && |
| 1045 | (Tok.is(tok::l_brace) || Tok.is(tok::kw_try) || |
| 1046 | Tok.is(tok::colon)) && |
Fariborz Jahanian | be1d4ec | 2012-08-10 15:54:40 +0000 | [diff] [blame] | 1047 | Actions.CurContext->isTranslationUnit()) { |
Fariborz Jahanian | be1d4ec | 2012-08-10 15:54:40 +0000 | [diff] [blame] | 1048 | ParseScope BodyScope(this, Scope::FnScope|Scope::DeclScope); |
| 1049 | Scope *ParentScope = getCurScope()->getParent(); |
| 1050 | |
| 1051 | D.setFunctionDefinitionKind(FDK_Definition); |
| 1052 | Decl *FuncDecl = Actions.HandleDeclarator(ParentScope, D, |
Benjamin Kramer | 5354e77 | 2012-08-23 23:38:35 +0000 | [diff] [blame] | 1053 | MultiTemplateParamsArg()); |
Fariborz Jahanian | be1d4ec | 2012-08-10 15:54:40 +0000 | [diff] [blame] | 1054 | D.complete(FuncDecl); |
| 1055 | D.getMutableDeclSpec().abort(); |
| 1056 | if (FuncDecl) { |
| 1057 | // Consume the tokens and store them for later parsing. |
| 1058 | StashAwayMethodOrFunctionBodyTokens(FuncDecl); |
| 1059 | CurParsedObjCImpl->HasCFunction = true; |
| 1060 | return FuncDecl; |
| 1061 | } |
| 1062 | } |
| 1063 | |
Chris Lattner | b652cea | 2007-10-09 17:14:05 +0000 | [diff] [blame] | 1064 | // Enter a scope for the function body. |
Douglas Gregor | 8935b8b | 2008-12-10 06:34:36 +0000 | [diff] [blame] | 1065 | ParseScope BodyScope(this, Scope::FnScope|Scope::DeclScope); |
Mike Stump | a6f0177 | 2008-06-19 19:28:49 +0000 | [diff] [blame] | 1066 | |
Chris Lattner | b652cea | 2007-10-09 17:14:05 +0000 | [diff] [blame] | 1067 | // Tell the actions module that we have entered a function definition with the |
| 1068 | // specified Declarator for the function. |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 1069 | Decl *Res = TemplateInfo.TemplateParams? |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 1070 | Actions.ActOnStartOfFunctionTemplateDef(getCurScope(), |
Benjamin Kramer | 5354e77 | 2012-08-23 23:38:35 +0000 | [diff] [blame] | 1071 | *TemplateInfo.TemplateParams, D) |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 1072 | : Actions.ActOnStartOfFunctionDef(getCurScope(), D); |
Mike Stump | a6f0177 | 2008-06-19 19:28:49 +0000 | [diff] [blame] | 1073 | |
John McCall | 54abf7d | 2009-11-04 02:18:39 +0000 | [diff] [blame] | 1074 | // Break out of the ParsingDeclarator context before we parse the body. |
| 1075 | D.complete(Res); |
| 1076 | |
| 1077 | // Break out of the ParsingDeclSpec context, too. This const_cast is |
| 1078 | // safe because we're always the sole owner. |
| 1079 | D.getMutableDeclSpec().abort(); |
| 1080 | |
Sean Hunt | cd10dec | 2011-05-23 23:14:04 +0000 | [diff] [blame] | 1081 | if (Tok.is(tok::equal)) { |
David Blaikie | 4e4d084 | 2012-03-11 07:00:24 +0000 | [diff] [blame] | 1082 | assert(getLangOpts().CPlusPlus && "Only C++ function definitions have '='"); |
Sean Hunt | cd10dec | 2011-05-23 23:14:04 +0000 | [diff] [blame] | 1083 | ConsumeToken(); |
| 1084 | |
| 1085 | Actions.ActOnFinishFunctionBody(Res, 0, false); |
| 1086 | |
| 1087 | bool Delete = false; |
| 1088 | SourceLocation KWLoc; |
| 1089 | if (Tok.is(tok::kw_delete)) { |
Richard Smith | 80ad52f | 2013-01-02 11:42:31 +0000 | [diff] [blame] | 1090 | Diag(Tok, getLangOpts().CPlusPlus11 ? |
Richard Smith | 7fe6208 | 2011-10-15 05:09:34 +0000 | [diff] [blame] | 1091 | diag::warn_cxx98_compat_deleted_function : |
Richard Smith | d7c56e1 | 2011-12-29 21:57:33 +0000 | [diff] [blame] | 1092 | diag::ext_deleted_function); |
Sean Hunt | cd10dec | 2011-05-23 23:14:04 +0000 | [diff] [blame] | 1093 | |
| 1094 | KWLoc = ConsumeToken(); |
| 1095 | Actions.SetDeclDeleted(Res, KWLoc); |
| 1096 | Delete = true; |
| 1097 | } else if (Tok.is(tok::kw_default)) { |
Richard Smith | 80ad52f | 2013-01-02 11:42:31 +0000 | [diff] [blame] | 1098 | Diag(Tok, getLangOpts().CPlusPlus11 ? |
Richard Smith | 7fe6208 | 2011-10-15 05:09:34 +0000 | [diff] [blame] | 1099 | diag::warn_cxx98_compat_defaulted_function : |
Richard Smith | d7c56e1 | 2011-12-29 21:57:33 +0000 | [diff] [blame] | 1100 | diag::ext_defaulted_function); |
Sean Hunt | cd10dec | 2011-05-23 23:14:04 +0000 | [diff] [blame] | 1101 | |
| 1102 | KWLoc = ConsumeToken(); |
| 1103 | Actions.SetDeclDefaulted(Res, KWLoc); |
| 1104 | } else { |
| 1105 | llvm_unreachable("function definition after = not 'delete' or 'default'"); |
| 1106 | } |
| 1107 | |
| 1108 | if (Tok.is(tok::comma)) { |
| 1109 | Diag(KWLoc, diag::err_default_delete_in_multiple_declaration) |
| 1110 | << Delete; |
| 1111 | SkipUntil(tok::semi); |
| 1112 | } else { |
| 1113 | ExpectAndConsume(tok::semi, diag::err_expected_semi_after, |
| 1114 | Delete ? "delete" : "default", tok::semi); |
| 1115 | } |
| 1116 | |
| 1117 | return Res; |
| 1118 | } |
| 1119 | |
Sebastian Redl | d3a413d | 2009-04-26 20:35:05 +0000 | [diff] [blame] | 1120 | if (Tok.is(tok::kw_try)) |
Douglas Gregor | c9977d0 | 2011-03-16 17:05:57 +0000 | [diff] [blame] | 1121 | return ParseFunctionTryBlock(Res, BodyScope); |
Sebastian Redl | d3a413d | 2009-04-26 20:35:05 +0000 | [diff] [blame] | 1122 | |
Douglas Gregor | 7ad8390 | 2008-11-05 04:29:56 +0000 | [diff] [blame] | 1123 | // If we have a colon, then we're probably parsing a C++ |
| 1124 | // ctor-initializer. |
John McCall | d6ca8da | 2010-04-10 07:37:23 +0000 | [diff] [blame] | 1125 | if (Tok.is(tok::colon)) { |
Douglas Gregor | 7ad8390 | 2008-11-05 04:29:56 +0000 | [diff] [blame] | 1126 | ParseConstructorInitializer(Res); |
John McCall | d6ca8da | 2010-04-10 07:37:23 +0000 | [diff] [blame] | 1127 | |
| 1128 | // Recover from error. |
| 1129 | if (!Tok.is(tok::l_brace)) { |
Douglas Gregor | c9977d0 | 2011-03-16 17:05:57 +0000 | [diff] [blame] | 1130 | BodyScope.Exit(); |
John McCall | 9ae2f07 | 2010-08-23 23:25:46 +0000 | [diff] [blame] | 1131 | Actions.ActOnFinishFunctionBody(Res, 0); |
John McCall | d6ca8da | 2010-04-10 07:37:23 +0000 | [diff] [blame] | 1132 | return Res; |
| 1133 | } |
| 1134 | } else |
Fariborz Jahanian | 393612e | 2009-07-21 22:36:06 +0000 | [diff] [blame] | 1135 | Actions.ActOnDefaultCtorInitializers(Res); |
Douglas Gregor | 7ad8390 | 2008-11-05 04:29:56 +0000 | [diff] [blame] | 1136 | |
DeLesley Hutchins | c24a233 | 2012-02-16 16:50:43 +0000 | [diff] [blame] | 1137 | // Late attributes are parsed in the same scope as the function body. |
| 1138 | if (LateParsedAttrs) |
| 1139 | ParseLexedAttributeList(*LateParsedAttrs, Res, false, true); |
| 1140 | |
Douglas Gregor | c9977d0 | 2011-03-16 17:05:57 +0000 | [diff] [blame] | 1141 | return ParseFunctionStatementBody(Res, BodyScope); |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 1142 | } |
| 1143 | |
| 1144 | /// ParseKNRParamDeclarations - Parse 'declaration-list[opt]' which provides |
| 1145 | /// types for a function with a K&R-style identifier list for arguments. |
| 1146 | void Parser::ParseKNRParamDeclarations(Declarator &D) { |
| 1147 | // We know that the top-level of this declarator is a function. |
Abramo Bagnara | 075f8f1 | 2010-12-10 16:29:40 +0000 | [diff] [blame] | 1148 | DeclaratorChunk::FunctionTypeInfo &FTI = D.getFunctionTypeInfo(); |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 1149 | |
Chris Lattner | 0442108 | 2008-04-08 04:40:51 +0000 | [diff] [blame] | 1150 | // Enter function-declaration scope, limiting any declarators to the |
| 1151 | // function prototype scope, including parameter declarators. |
Richard Smith | 3a2b7a1 | 2013-01-28 22:42:45 +0000 | [diff] [blame] | 1152 | ParseScope PrototypeScope(this, Scope::FunctionPrototypeScope | |
| 1153 | Scope::FunctionDeclarationScope | Scope::DeclScope); |
Chris Lattner | 0442108 | 2008-04-08 04:40:51 +0000 | [diff] [blame] | 1154 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 1155 | // Read all the argument declarations. |
| 1156 | while (isDeclarationSpecifier()) { |
| 1157 | SourceLocation DSStart = Tok.getLocation(); |
Mike Stump | a6f0177 | 2008-06-19 19:28:49 +0000 | [diff] [blame] | 1158 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 1159 | // Parse the common declaration-specifiers piece. |
John McCall | 0b7e678 | 2011-03-24 11:26:52 +0000 | [diff] [blame] | 1160 | DeclSpec DS(AttrFactory); |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 1161 | ParseDeclarationSpecifiers(DS); |
Mike Stump | a6f0177 | 2008-06-19 19:28:49 +0000 | [diff] [blame] | 1162 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 1163 | // C99 6.9.1p6: 'each declaration in the declaration list shall have at |
| 1164 | // least one declarator'. |
| 1165 | // NOTE: GCC just makes this an ext-warn. It's not clear what it does with |
| 1166 | // the declarations though. It's trivial to ignore them, really hard to do |
| 1167 | // anything else with them. |
Chris Lattner | 0007322 | 2007-10-09 17:23:58 +0000 | [diff] [blame] | 1168 | if (Tok.is(tok::semi)) { |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 1169 | Diag(DSStart, diag::err_declaration_does_not_declare_param); |
| 1170 | ConsumeToken(); |
| 1171 | continue; |
| 1172 | } |
Mike Stump | a6f0177 | 2008-06-19 19:28:49 +0000 | [diff] [blame] | 1173 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 1174 | // C99 6.9.1p6: Declarations shall contain no storage-class specifiers other |
| 1175 | // than register. |
| 1176 | if (DS.getStorageClassSpec() != DeclSpec::SCS_unspecified && |
| 1177 | DS.getStorageClassSpec() != DeclSpec::SCS_register) { |
| 1178 | Diag(DS.getStorageClassSpecLoc(), |
| 1179 | diag::err_invalid_storage_class_in_func_decl); |
| 1180 | DS.ClearStorageClassSpecs(); |
| 1181 | } |
Richard Smith | ec64244 | 2013-04-12 22:46:28 +0000 | [diff] [blame] | 1182 | if (DS.getThreadStorageClassSpec() != DeclSpec::TSCS_unspecified) { |
| 1183 | Diag(DS.getThreadStorageClassSpecLoc(), |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 1184 | diag::err_invalid_storage_class_in_func_decl); |
| 1185 | DS.ClearStorageClassSpecs(); |
| 1186 | } |
Mike Stump | a6f0177 | 2008-06-19 19:28:49 +0000 | [diff] [blame] | 1187 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 1188 | // Parse the first declarator attached to this declspec. |
| 1189 | Declarator ParmDeclarator(DS, Declarator::KNRTypeListContext); |
| 1190 | ParseDeclarator(ParmDeclarator); |
| 1191 | |
| 1192 | // Handle the full declarator list. |
| 1193 | while (1) { |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 1194 | // If attributes are present, parse them. |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 1195 | MaybeParseGNUAttributes(ParmDeclarator); |
Mike Stump | a6f0177 | 2008-06-19 19:28:49 +0000 | [diff] [blame] | 1196 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 1197 | // Ask the actions module to compute the type for this declarator. |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 1198 | Decl *Param = |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 1199 | Actions.ActOnParamDeclarator(getCurScope(), ParmDeclarator); |
Manuel Klimek | 152b4e4 | 2013-08-22 12:12:24 +0000 | [diff] [blame] | 1200 | |
Mike Stump | a6f0177 | 2008-06-19 19:28:49 +0000 | [diff] [blame] | 1201 | if (Param && |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 1202 | // A missing identifier has already been diagnosed. |
| 1203 | ParmDeclarator.getIdentifier()) { |
| 1204 | |
| 1205 | // Scan the argument list looking for the correct param to apply this |
| 1206 | // type. |
| 1207 | for (unsigned i = 0; ; ++i) { |
| 1208 | // C99 6.9.1p6: those declarators shall declare only identifiers from |
| 1209 | // the identifier list. |
| 1210 | if (i == FTI.NumArgs) { |
Chris Lattner | 1ab3b96 | 2008-11-18 07:48:38 +0000 | [diff] [blame] | 1211 | Diag(ParmDeclarator.getIdentifierLoc(), diag::err_no_matching_param) |
Chris Lattner | 6898e33 | 2008-11-19 07:51:13 +0000 | [diff] [blame] | 1212 | << ParmDeclarator.getIdentifier(); |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 1213 | break; |
| 1214 | } |
Mike Stump | a6f0177 | 2008-06-19 19:28:49 +0000 | [diff] [blame] | 1215 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 1216 | if (FTI.ArgInfo[i].Ident == ParmDeclarator.getIdentifier()) { |
| 1217 | // Reject redefinitions of parameters. |
Chris Lattner | 0442108 | 2008-04-08 04:40:51 +0000 | [diff] [blame] | 1218 | if (FTI.ArgInfo[i].Param) { |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 1219 | Diag(ParmDeclarator.getIdentifierLoc(), |
Chris Lattner | 1ab3b96 | 2008-11-18 07:48:38 +0000 | [diff] [blame] | 1220 | diag::err_param_redefinition) |
Chris Lattner | 6898e33 | 2008-11-19 07:51:13 +0000 | [diff] [blame] | 1221 | << ParmDeclarator.getIdentifier(); |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 1222 | } else { |
Chris Lattner | 0442108 | 2008-04-08 04:40:51 +0000 | [diff] [blame] | 1223 | FTI.ArgInfo[i].Param = Param; |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 1224 | } |
| 1225 | break; |
| 1226 | } |
| 1227 | } |
| 1228 | } |
| 1229 | |
| 1230 | // If we don't have a comma, it is either the end of the list (a ';') or |
| 1231 | // an error, bail out. |
Chris Lattner | 0007322 | 2007-10-09 17:23:58 +0000 | [diff] [blame] | 1232 | if (Tok.isNot(tok::comma)) |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 1233 | break; |
Mike Stump | a6f0177 | 2008-06-19 19:28:49 +0000 | [diff] [blame] | 1234 | |
Richard Smith | 7984de3 | 2012-01-12 23:53:29 +0000 | [diff] [blame] | 1235 | ParmDeclarator.clear(); |
| 1236 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 1237 | // Consume the comma. |
Richard Smith | 7984de3 | 2012-01-12 23:53:29 +0000 | [diff] [blame] | 1238 | ParmDeclarator.setCommaLoc(ConsumeToken()); |
Mike Stump | a6f0177 | 2008-06-19 19:28:49 +0000 | [diff] [blame] | 1239 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 1240 | // Parse the next declarator. |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 1241 | ParseDeclarator(ParmDeclarator); |
| 1242 | } |
Mike Stump | a6f0177 | 2008-06-19 19:28:49 +0000 | [diff] [blame] | 1243 | |
Chris Lattner | 8bb21d3 | 2012-04-28 16:12:17 +0000 | [diff] [blame] | 1244 | if (ExpectAndConsumeSemi(diag::err_expected_semi_declaration)) { |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 1245 | // Skip to end of block or statement |
| 1246 | SkipUntil(tok::semi, true); |
Chris Lattner | 0007322 | 2007-10-09 17:23:58 +0000 | [diff] [blame] | 1247 | if (Tok.is(tok::semi)) |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 1248 | ConsumeToken(); |
| 1249 | } |
| 1250 | } |
Mike Stump | a6f0177 | 2008-06-19 19:28:49 +0000 | [diff] [blame] | 1251 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 1252 | // The actions module must verify that all arguments were declared. |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 1253 | Actions.ActOnFinishKNRParamDeclarations(getCurScope(), D, Tok.getLocation()); |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 1254 | } |
| 1255 | |
| 1256 | |
| 1257 | /// ParseAsmStringLiteral - This is just a normal string-literal, but is not |
| 1258 | /// allowed to be a wide string, and is not subject to character translation. |
| 1259 | /// |
| 1260 | /// [GNU] asm-string-literal: |
| 1261 | /// string-literal |
| 1262 | /// |
John McCall | 60d7b3a | 2010-08-24 06:29:42 +0000 | [diff] [blame] | 1263 | Parser::ExprResult Parser::ParseAsmStringLiteral() { |
Ted Kremenek | 7f42228 | 2011-12-02 00:35:46 +0000 | [diff] [blame] | 1264 | switch (Tok.getKind()) { |
| 1265 | case tok::string_literal: |
| 1266 | break; |
Richard Smith | 99831e4 | 2012-03-06 03:21:47 +0000 | [diff] [blame] | 1267 | case tok::utf8_string_literal: |
| 1268 | case tok::utf16_string_literal: |
| 1269 | case tok::utf32_string_literal: |
Ted Kremenek | 7f42228 | 2011-12-02 00:35:46 +0000 | [diff] [blame] | 1270 | case tok::wide_string_literal: { |
| 1271 | SourceLocation L = Tok.getLocation(); |
| 1272 | Diag(Tok, diag::err_asm_operand_wide_string_literal) |
Richard Smith | 99831e4 | 2012-03-06 03:21:47 +0000 | [diff] [blame] | 1273 | << (Tok.getKind() == tok::wide_string_literal) |
Ted Kremenek | 7f42228 | 2011-12-02 00:35:46 +0000 | [diff] [blame] | 1274 | << SourceRange(L, L); |
| 1275 | return ExprError(); |
| 1276 | } |
| 1277 | default: |
Andy Gibbs | 97f8461 | 2012-11-17 19:16:52 +0000 | [diff] [blame] | 1278 | Diag(Tok, diag::err_expected_string_literal) |
| 1279 | << /*Source='in...'*/0 << "'asm'"; |
Ted Kremenek | 7f42228 | 2011-12-02 00:35:46 +0000 | [diff] [blame] | 1280 | return ExprError(); |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 1281 | } |
Mike Stump | a6f0177 | 2008-06-19 19:28:49 +0000 | [diff] [blame] | 1282 | |
Richard Smith | 99831e4 | 2012-03-06 03:21:47 +0000 | [diff] [blame] | 1283 | return ParseStringLiteralExpression(); |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 1284 | } |
| 1285 | |
| 1286 | /// ParseSimpleAsm |
| 1287 | /// |
| 1288 | /// [GNU] simple-asm-expr: |
| 1289 | /// 'asm' '(' asm-string-literal ')' |
| 1290 | /// |
John McCall | 60d7b3a | 2010-08-24 06:29:42 +0000 | [diff] [blame] | 1291 | Parser::ExprResult Parser::ParseSimpleAsm(SourceLocation *EndLoc) { |
Chris Lattner | 0007322 | 2007-10-09 17:23:58 +0000 | [diff] [blame] | 1292 | assert(Tok.is(tok::kw_asm) && "Not an asm!"); |
Anders Carlsson | dfab6cb | 2008-02-08 00:33:21 +0000 | [diff] [blame] | 1293 | SourceLocation Loc = ConsumeToken(); |
Mike Stump | a6f0177 | 2008-06-19 19:28:49 +0000 | [diff] [blame] | 1294 | |
John McCall | 7a6ae74 | 2010-01-25 22:27:48 +0000 | [diff] [blame] | 1295 | if (Tok.is(tok::kw_volatile)) { |
John McCall | 841d5e6 | 2010-01-25 23:12:50 +0000 | [diff] [blame] | 1296 | // Remove from the end of 'asm' to the end of 'volatile'. |
| 1297 | SourceRange RemovalRange(PP.getLocForEndOfToken(Loc), |
| 1298 | PP.getLocForEndOfToken(Tok.getLocation())); |
| 1299 | |
| 1300 | Diag(Tok, diag::warn_file_asm_volatile) |
Douglas Gregor | 849b243 | 2010-03-31 17:46:05 +0000 | [diff] [blame] | 1301 | << FixItHint::CreateRemoval(RemovalRange); |
John McCall | 7a6ae74 | 2010-01-25 22:27:48 +0000 | [diff] [blame] | 1302 | ConsumeToken(); |
| 1303 | } |
| 1304 | |
Douglas Gregor | 4a8dfb5 | 2011-10-12 16:37:45 +0000 | [diff] [blame] | 1305 | BalancedDelimiterTracker T(*this, tok::l_paren); |
| 1306 | if (T.consumeOpen()) { |
Chris Lattner | 1ab3b96 | 2008-11-18 07:48:38 +0000 | [diff] [blame] | 1307 | Diag(Tok, diag::err_expected_lparen_after) << "asm"; |
Sebastian Redl | 61364dd | 2008-12-11 19:30:53 +0000 | [diff] [blame] | 1308 | return ExprError(); |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 1309 | } |
Mike Stump | a6f0177 | 2008-06-19 19:28:49 +0000 | [diff] [blame] | 1310 | |
John McCall | 60d7b3a | 2010-08-24 06:29:42 +0000 | [diff] [blame] | 1311 | ExprResult Result(ParseAsmStringLiteral()); |
Mike Stump | a6f0177 | 2008-06-19 19:28:49 +0000 | [diff] [blame] | 1312 | |
Sebastian Redl | ab197ba | 2009-02-09 18:23:29 +0000 | [diff] [blame] | 1313 | if (Result.isInvalid()) { |
| 1314 | SkipUntil(tok::r_paren, true, true); |
| 1315 | if (EndLoc) |
| 1316 | *EndLoc = Tok.getLocation(); |
| 1317 | ConsumeAnyToken(); |
| 1318 | } else { |
Douglas Gregor | 4a8dfb5 | 2011-10-12 16:37:45 +0000 | [diff] [blame] | 1319 | // Close the paren and get the location of the end bracket |
| 1320 | T.consumeClose(); |
Sebastian Redl | ab197ba | 2009-02-09 18:23:29 +0000 | [diff] [blame] | 1321 | if (EndLoc) |
Douglas Gregor | 4a8dfb5 | 2011-10-12 16:37:45 +0000 | [diff] [blame] | 1322 | *EndLoc = T.getCloseLocation(); |
Sebastian Redl | ab197ba | 2009-02-09 18:23:29 +0000 | [diff] [blame] | 1323 | } |
Mike Stump | a6f0177 | 2008-06-19 19:28:49 +0000 | [diff] [blame] | 1324 | |
Benjamin Kramer | 3fe198b | 2012-08-23 21:35:17 +0000 | [diff] [blame] | 1325 | return Result; |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 1326 | } |
| 1327 | |
Argyrios Kyrtzidis | 25a7676 | 2011-06-22 06:09:49 +0000 | [diff] [blame] | 1328 | /// \brief Get the TemplateIdAnnotation from the token and put it in the |
| 1329 | /// cleanup pool so that it gets destroyed when parsing the current top level |
| 1330 | /// declaration is finished. |
| 1331 | TemplateIdAnnotation *Parser::takeTemplateIdAnnotation(const Token &tok) { |
| 1332 | assert(tok.is(tok::annot_template_id) && "Expected template-id token"); |
| 1333 | TemplateIdAnnotation * |
| 1334 | Id = static_cast<TemplateIdAnnotation *>(tok.getAnnotationValue()); |
Argyrios Kyrtzidis | 25a7676 | 2011-06-22 06:09:49 +0000 | [diff] [blame] | 1335 | return Id; |
| 1336 | } |
| 1337 | |
Richard Smith | 0576681 | 2012-08-18 00:55:03 +0000 | [diff] [blame] | 1338 | void Parser::AnnotateScopeToken(CXXScopeSpec &SS, bool IsNewAnnotation) { |
| 1339 | // Push the current token back into the token stream (or revert it if it is |
| 1340 | // cached) and use an annotation scope token for current token. |
| 1341 | if (PP.isBacktrackEnabled()) |
| 1342 | PP.RevertCachedTokens(1); |
| 1343 | else |
| 1344 | PP.EnterToken(Tok); |
| 1345 | Tok.setKind(tok::annot_cxxscope); |
| 1346 | Tok.setAnnotationValue(Actions.SaveNestedNameSpecifierAnnotation(SS)); |
| 1347 | Tok.setAnnotationRange(SS.getRange()); |
| 1348 | |
| 1349 | // In case the tokens were cached, have Preprocessor replace them |
| 1350 | // with the annotation token. We don't need to do this if we've |
| 1351 | // just reverted back to a prior state. |
| 1352 | if (IsNewAnnotation) |
| 1353 | PP.AnnotateCachedTokens(Tok); |
| 1354 | } |
| 1355 | |
| 1356 | /// \brief Attempt to classify the name at the current token position. This may |
| 1357 | /// form a type, scope or primary expression annotation, or replace the token |
| 1358 | /// with a typo-corrected keyword. This is only appropriate when the current |
| 1359 | /// name must refer to an entity which has already been declared. |
| 1360 | /// |
| 1361 | /// \param IsAddressOfOperand Must be \c true if the name is preceded by an '&' |
| 1362 | /// and might possibly have a dependent nested name specifier. |
| 1363 | /// \param CCC Indicates how to perform typo-correction for this name. If NULL, |
| 1364 | /// no typo correction will be performed. |
| 1365 | Parser::AnnotatedNameKind |
| 1366 | Parser::TryAnnotateName(bool IsAddressOfOperand, |
| 1367 | CorrectionCandidateCallback *CCC) { |
| 1368 | assert(Tok.is(tok::identifier) || Tok.is(tok::annot_cxxscope)); |
| 1369 | |
| 1370 | const bool EnteringContext = false; |
| 1371 | const bool WasScopeAnnotation = Tok.is(tok::annot_cxxscope); |
| 1372 | |
| 1373 | CXXScopeSpec SS; |
| 1374 | if (getLangOpts().CPlusPlus && |
| 1375 | ParseOptionalCXXScopeSpecifier(SS, ParsedType(), EnteringContext)) |
| 1376 | return ANK_Error; |
| 1377 | |
| 1378 | if (Tok.isNot(tok::identifier) || SS.isInvalid()) { |
| 1379 | if (TryAnnotateTypeOrScopeTokenAfterScopeSpec(EnteringContext, false, SS, |
| 1380 | !WasScopeAnnotation)) |
| 1381 | return ANK_Error; |
| 1382 | return ANK_Unresolved; |
| 1383 | } |
| 1384 | |
| 1385 | IdentifierInfo *Name = Tok.getIdentifierInfo(); |
| 1386 | SourceLocation NameLoc = Tok.getLocation(); |
| 1387 | |
| 1388 | // FIXME: Move the tentative declaration logic into ClassifyName so we can |
| 1389 | // typo-correct to tentatively-declared identifiers. |
| 1390 | if (isTentativelyDeclared(Name)) { |
| 1391 | // Identifier has been tentatively declared, and thus cannot be resolved as |
| 1392 | // an expression. Fall back to annotating it as a type. |
| 1393 | if (TryAnnotateTypeOrScopeTokenAfterScopeSpec(EnteringContext, false, SS, |
| 1394 | !WasScopeAnnotation)) |
| 1395 | return ANK_Error; |
| 1396 | return Tok.is(tok::annot_typename) ? ANK_Success : ANK_TentativeDecl; |
| 1397 | } |
| 1398 | |
| 1399 | Token Next = NextToken(); |
| 1400 | |
| 1401 | // Look up and classify the identifier. We don't perform any typo-correction |
| 1402 | // after a scope specifier, because in general we can't recover from typos |
| 1403 | // there (eg, after correcting 'A::tempalte B<X>::C', we would need to jump |
| 1404 | // back into scope specifier parsing). |
| 1405 | Sema::NameClassification Classification |
| 1406 | = Actions.ClassifyName(getCurScope(), SS, Name, NameLoc, Next, |
| 1407 | IsAddressOfOperand, SS.isEmpty() ? CCC : 0); |
| 1408 | |
| 1409 | switch (Classification.getKind()) { |
| 1410 | case Sema::NC_Error: |
| 1411 | return ANK_Error; |
| 1412 | |
| 1413 | case Sema::NC_Keyword: |
| 1414 | // The identifier was typo-corrected to a keyword. |
| 1415 | Tok.setIdentifierInfo(Name); |
| 1416 | Tok.setKind(Name->getTokenID()); |
| 1417 | PP.TypoCorrectToken(Tok); |
| 1418 | if (SS.isNotEmpty()) |
| 1419 | AnnotateScopeToken(SS, !WasScopeAnnotation); |
| 1420 | // We've "annotated" this as a keyword. |
| 1421 | return ANK_Success; |
| 1422 | |
| 1423 | case Sema::NC_Unknown: |
| 1424 | // It's not something we know about. Leave it unannotated. |
| 1425 | break; |
| 1426 | |
| 1427 | case Sema::NC_Type: |
| 1428 | Tok.setKind(tok::annot_typename); |
| 1429 | setTypeAnnotation(Tok, Classification.getType()); |
| 1430 | Tok.setAnnotationEndLoc(NameLoc); |
| 1431 | if (SS.isNotEmpty()) |
| 1432 | Tok.setLocation(SS.getBeginLoc()); |
| 1433 | PP.AnnotateCachedTokens(Tok); |
| 1434 | return ANK_Success; |
| 1435 | |
| 1436 | case Sema::NC_Expression: |
| 1437 | Tok.setKind(tok::annot_primary_expr); |
| 1438 | setExprAnnotation(Tok, Classification.getExpression()); |
| 1439 | Tok.setAnnotationEndLoc(NameLoc); |
| 1440 | if (SS.isNotEmpty()) |
| 1441 | Tok.setLocation(SS.getBeginLoc()); |
| 1442 | PP.AnnotateCachedTokens(Tok); |
| 1443 | return ANK_Success; |
| 1444 | |
| 1445 | case Sema::NC_TypeTemplate: |
| 1446 | if (Next.isNot(tok::less)) { |
| 1447 | // This may be a type template being used as a template template argument. |
| 1448 | if (SS.isNotEmpty()) |
| 1449 | AnnotateScopeToken(SS, !WasScopeAnnotation); |
| 1450 | return ANK_TemplateName; |
| 1451 | } |
| 1452 | // Fall through. |
Larisse Voufo | ef4579c | 2013-08-06 01:03:05 +0000 | [diff] [blame] | 1453 | case Sema::NC_VarTemplate: |
Richard Smith | 0576681 | 2012-08-18 00:55:03 +0000 | [diff] [blame] | 1454 | case Sema::NC_FunctionTemplate: { |
Larisse Voufo | ef4579c | 2013-08-06 01:03:05 +0000 | [diff] [blame] | 1455 | // We have a type, variable or function template followed by '<'. |
Richard Smith | 0576681 | 2012-08-18 00:55:03 +0000 | [diff] [blame] | 1456 | ConsumeToken(); |
| 1457 | UnqualifiedId Id; |
| 1458 | Id.setIdentifier(Name, NameLoc); |
| 1459 | if (AnnotateTemplateIdToken( |
| 1460 | TemplateTy::make(Classification.getTemplateName()), |
| 1461 | Classification.getTemplateNameKind(), SS, SourceLocation(), Id)) |
| 1462 | return ANK_Error; |
| 1463 | return ANK_Success; |
| 1464 | } |
| 1465 | |
| 1466 | case Sema::NC_NestedNameSpecifier: |
| 1467 | llvm_unreachable("already parsed nested name specifier"); |
| 1468 | } |
| 1469 | |
| 1470 | // Unable to classify the name, but maybe we can annotate a scope specifier. |
| 1471 | if (SS.isNotEmpty()) |
| 1472 | AnnotateScopeToken(SS, !WasScopeAnnotation); |
| 1473 | return ANK_Unresolved; |
| 1474 | } |
| 1475 | |
Argyrios Kyrtzidis | eb83ecd | 2008-11-08 16:45:02 +0000 | [diff] [blame] | 1476 | /// TryAnnotateTypeOrScopeToken - If the current token position is on a |
| 1477 | /// typename (possibly qualified in C++) or a C++ scope specifier not followed |
| 1478 | /// by a typename, TryAnnotateTypeOrScopeToken will replace one or more tokens |
| 1479 | /// with a single annotation token representing the typename or C++ scope |
| 1480 | /// respectively. |
| 1481 | /// This simplifies handling of C++ scope specifiers and allows efficient |
| 1482 | /// backtracking without the need to re-parse and resolve nested-names and |
| 1483 | /// typenames. |
Argyrios Kyrtzidis | 44802cc | 2008-11-26 21:51:07 +0000 | [diff] [blame] | 1484 | /// It will mainly be called when we expect to treat identifiers as typenames |
| 1485 | /// (if they are typenames). For example, in C we do not expect identifiers |
| 1486 | /// inside expressions to be treated as typenames so it will not be called |
| 1487 | /// for expressions in C. |
| 1488 | /// The benefit for C/ObjC is that a typename will be annotated and |
Steve Naroff | b43a50f | 2009-01-28 19:39:02 +0000 | [diff] [blame] | 1489 | /// Actions.getTypeName will not be needed to be called again (e.g. getTypeName |
Argyrios Kyrtzidis | 44802cc | 2008-11-26 21:51:07 +0000 | [diff] [blame] | 1490 | /// will not be called twice, once to check whether we have a declaration |
| 1491 | /// specifier, and another one to get the actual type inside |
| 1492 | /// ParseDeclarationSpecifiers). |
Chris Lattner | a7bc7c8 | 2009-01-04 23:23:14 +0000 | [diff] [blame] | 1493 | /// |
John McCall | 9ba6166 | 2010-02-26 08:45:28 +0000 | [diff] [blame] | 1494 | /// This returns true if an error occurred. |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1495 | /// |
Chris Lattner | 55a7cef | 2009-01-05 00:13:00 +0000 | [diff] [blame] | 1496 | /// Note that this routine emits an error if you call it with ::new or ::delete |
| 1497 | /// as the current tokens, so only call it in contexts where these are invalid. |
Kaelyn Uhrain | fac9467 | 2011-10-11 01:02:41 +0000 | [diff] [blame] | 1498 | bool Parser::TryAnnotateTypeOrScopeToken(bool EnteringContext, bool NeedType) { |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1499 | assert((Tok.is(tok::identifier) || Tok.is(tok::coloncolon) |
David Blaikie | 42d6d0c | 2011-12-04 05:04:18 +0000 | [diff] [blame] | 1500 | || Tok.is(tok::kw_typename) || Tok.is(tok::annot_cxxscope) |
Richard Smith | 2375677 | 2012-05-14 22:43:34 +0000 | [diff] [blame] | 1501 | || Tok.is(tok::kw_decltype) || Tok.is(tok::annot_template_id)) |
| 1502 | && "Cannot be a type or scope token!"); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1503 | |
Douglas Gregor | d57959a | 2009-03-27 23:10:48 +0000 | [diff] [blame] | 1504 | if (Tok.is(tok::kw_typename)) { |
David Majnemer | 67ac998 | 2013-09-03 22:36:22 +0000 | [diff] [blame] | 1505 | // MSVC lets you do stuff like: |
| 1506 | // typename typedef T_::D D; |
| 1507 | // |
| 1508 | // We will consume the typedef token here and put it back after we have |
| 1509 | // parsed the first identifier, transforming it into something more like: |
| 1510 | // typename T_::D typedef D; |
| 1511 | if (getLangOpts().MicrosoftMode && NextToken().is(tok::kw_typedef)) { |
| 1512 | Token TypedefToken; |
| 1513 | PP.Lex(TypedefToken); |
| 1514 | bool Result = TryAnnotateTypeOrScopeToken(EnteringContext, NeedType); |
| 1515 | PP.EnterToken(Tok); |
| 1516 | Tok = TypedefToken; |
| 1517 | if (!Result) |
| 1518 | Diag(Tok.getLocation(), diag::warn_expected_qualified_after_typename); |
| 1519 | return Result; |
| 1520 | } |
| 1521 | |
Douglas Gregor | d57959a | 2009-03-27 23:10:48 +0000 | [diff] [blame] | 1522 | // Parse a C++ typename-specifier, e.g., "typename T::type". |
| 1523 | // |
| 1524 | // typename-specifier: |
| 1525 | // 'typename' '::' [opt] nested-name-specifier identifier |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1526 | // 'typename' '::' [opt] nested-name-specifier template [opt] |
Douglas Gregor | 1734317 | 2009-04-01 00:28:59 +0000 | [diff] [blame] | 1527 | // simple-template-id |
Douglas Gregor | d57959a | 2009-03-27 23:10:48 +0000 | [diff] [blame] | 1528 | SourceLocation TypenameLoc = ConsumeToken(); |
| 1529 | CXXScopeSpec SS; |
Douglas Gregor | efaa93a | 2011-11-07 17:33:42 +0000 | [diff] [blame] | 1530 | if (ParseOptionalCXXScopeSpecifier(SS, /*ObjectType=*/ParsedType(), |
| 1531 | /*EnteringContext=*/false, |
Francois Pichet | 4147d30 | 2011-03-27 19:41:34 +0000 | [diff] [blame] | 1532 | 0, /*IsTypename*/true)) |
John McCall | 9ba6166 | 2010-02-26 08:45:28 +0000 | [diff] [blame] | 1533 | return true; |
| 1534 | if (!SS.isSet()) { |
Francois Pichet | b67e7fc | 2012-07-22 15:10:57 +0000 | [diff] [blame] | 1535 | if (Tok.is(tok::identifier) || Tok.is(tok::annot_template_id) || |
| 1536 | Tok.is(tok::annot_decltype)) { |
Richard Smith | 2375677 | 2012-05-14 22:43:34 +0000 | [diff] [blame] | 1537 | // Attempt to recover by skipping the invalid 'typename' |
Francois Pichet | b67e7fc | 2012-07-22 15:10:57 +0000 | [diff] [blame] | 1538 | if (Tok.is(tok::annot_decltype) || |
| 1539 | (!TryAnnotateTypeOrScopeToken(EnteringContext, NeedType) && |
David Majnemer | 67ac998 | 2013-09-03 22:36:22 +0000 | [diff] [blame] | 1540 | Tok.isAnnotation())) { |
Richard Smith | 2375677 | 2012-05-14 22:43:34 +0000 | [diff] [blame] | 1541 | unsigned DiagID = diag::err_expected_qualified_after_typename; |
| 1542 | // MS compatibility: MSVC permits using known types with typename. |
| 1543 | // e.g. "typedef typename T* pointer_type" |
| 1544 | if (getLangOpts().MicrosoftExt) |
| 1545 | DiagID = diag::warn_expected_qualified_after_typename; |
| 1546 | Diag(Tok.getLocation(), DiagID); |
| 1547 | return false; |
| 1548 | } |
| 1549 | } |
| 1550 | |
| 1551 | Diag(Tok.getLocation(), diag::err_expected_qualified_after_typename); |
John McCall | 9ba6166 | 2010-02-26 08:45:28 +0000 | [diff] [blame] | 1552 | return true; |
Douglas Gregor | d57959a | 2009-03-27 23:10:48 +0000 | [diff] [blame] | 1553 | } |
| 1554 | |
| 1555 | TypeResult Ty; |
| 1556 | if (Tok.is(tok::identifier)) { |
| 1557 | // FIXME: check whether the next token is '<', first! |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 1558 | Ty = Actions.ActOnTypenameType(getCurScope(), TypenameLoc, SS, |
Douglas Gregor | 1a15dae | 2010-06-16 22:31:08 +0000 | [diff] [blame] | 1559 | *Tok.getIdentifierInfo(), |
Douglas Gregor | d57959a | 2009-03-27 23:10:48 +0000 | [diff] [blame] | 1560 | Tok.getLocation()); |
Douglas Gregor | 1734317 | 2009-04-01 00:28:59 +0000 | [diff] [blame] | 1561 | } else if (Tok.is(tok::annot_template_id)) { |
Argyrios Kyrtzidis | 25a7676 | 2011-06-22 06:09:49 +0000 | [diff] [blame] | 1562 | TemplateIdAnnotation *TemplateId = takeTemplateIdAnnotation(Tok); |
Douglas Gregor | 1734317 | 2009-04-01 00:28:59 +0000 | [diff] [blame] | 1563 | if (TemplateId->Kind == TNK_Function_template) { |
| 1564 | Diag(Tok, diag::err_typename_refers_to_non_type_template) |
| 1565 | << Tok.getAnnotationRange(); |
John McCall | 9ba6166 | 2010-02-26 08:45:28 +0000 | [diff] [blame] | 1566 | return true; |
Douglas Gregor | 1734317 | 2009-04-01 00:28:59 +0000 | [diff] [blame] | 1567 | } |
Douglas Gregor | d57959a | 2009-03-27 23:10:48 +0000 | [diff] [blame] | 1568 | |
Benjamin Kramer | 5354e77 | 2012-08-23 23:38:35 +0000 | [diff] [blame] | 1569 | ASTTemplateArgsPtr TemplateArgsPtr(TemplateId->getTemplateArgs(), |
Douglas Gregor | a02411e | 2011-02-27 22:46:49 +0000 | [diff] [blame] | 1570 | TemplateId->NumArgs); |
Abramo Bagnara | 66581d4 | 2012-02-06 22:45:07 +0000 | [diff] [blame] | 1571 | |
Douglas Gregor | a02411e | 2011-02-27 22:46:49 +0000 | [diff] [blame] | 1572 | Ty = Actions.ActOnTypenameType(getCurScope(), TypenameLoc, SS, |
Abramo Bagnara | 66581d4 | 2012-02-06 22:45:07 +0000 | [diff] [blame] | 1573 | TemplateId->TemplateKWLoc, |
Douglas Gregor | a02411e | 2011-02-27 22:46:49 +0000 | [diff] [blame] | 1574 | TemplateId->Template, |
| 1575 | TemplateId->TemplateNameLoc, |
| 1576 | TemplateId->LAngleLoc, |
Abramo Bagnara | 66581d4 | 2012-02-06 22:45:07 +0000 | [diff] [blame] | 1577 | TemplateArgsPtr, |
Douglas Gregor | a02411e | 2011-02-27 22:46:49 +0000 | [diff] [blame] | 1578 | TemplateId->RAngleLoc); |
Douglas Gregor | 1734317 | 2009-04-01 00:28:59 +0000 | [diff] [blame] | 1579 | } else { |
| 1580 | Diag(Tok, diag::err_expected_type_name_after_typename) |
| 1581 | << SS.getRange(); |
John McCall | 9ba6166 | 2010-02-26 08:45:28 +0000 | [diff] [blame] | 1582 | return true; |
Douglas Gregor | 1734317 | 2009-04-01 00:28:59 +0000 | [diff] [blame] | 1583 | } |
| 1584 | |
Sebastian Redl | 39d6711 | 2010-02-08 19:35:18 +0000 | [diff] [blame] | 1585 | SourceLocation EndLoc = Tok.getLastLoc(); |
Douglas Gregor | 1734317 | 2009-04-01 00:28:59 +0000 | [diff] [blame] | 1586 | Tok.setKind(tok::annot_typename); |
John McCall | b3d8748 | 2010-08-24 05:47:05 +0000 | [diff] [blame] | 1587 | setTypeAnnotation(Tok, Ty.isInvalid() ? ParsedType() : Ty.get()); |
Sebastian Redl | 39d6711 | 2010-02-08 19:35:18 +0000 | [diff] [blame] | 1588 | Tok.setAnnotationEndLoc(EndLoc); |
Douglas Gregor | 1734317 | 2009-04-01 00:28:59 +0000 | [diff] [blame] | 1589 | Tok.setLocation(TypenameLoc); |
| 1590 | PP.AnnotateCachedTokens(Tok); |
John McCall | 9ba6166 | 2010-02-26 08:45:28 +0000 | [diff] [blame] | 1591 | return false; |
Douglas Gregor | d57959a | 2009-03-27 23:10:48 +0000 | [diff] [blame] | 1592 | } |
| 1593 | |
John McCall | ae03cb5 | 2009-12-19 00:35:18 +0000 | [diff] [blame] | 1594 | // Remembers whether the token was originally a scope annotation. |
Richard Smith | 0576681 | 2012-08-18 00:55:03 +0000 | [diff] [blame] | 1595 | bool WasScopeAnnotation = Tok.is(tok::annot_cxxscope); |
John McCall | ae03cb5 | 2009-12-19 00:35:18 +0000 | [diff] [blame] | 1596 | |
Argyrios Kyrtzidis | eb83ecd | 2008-11-08 16:45:02 +0000 | [diff] [blame] | 1597 | CXXScopeSpec SS; |
David Blaikie | 4e4d084 | 2012-03-11 07:00:24 +0000 | [diff] [blame] | 1598 | if (getLangOpts().CPlusPlus) |
John McCall | b3d8748 | 2010-08-24 05:47:05 +0000 | [diff] [blame] | 1599 | if (ParseOptionalCXXScopeSpecifier(SS, ParsedType(), EnteringContext)) |
John McCall | 9ba6166 | 2010-02-26 08:45:28 +0000 | [diff] [blame] | 1600 | return true; |
Argyrios Kyrtzidis | eb83ecd | 2008-11-08 16:45:02 +0000 | [diff] [blame] | 1601 | |
Richard Smith | 0576681 | 2012-08-18 00:55:03 +0000 | [diff] [blame] | 1602 | return TryAnnotateTypeOrScopeTokenAfterScopeSpec(EnteringContext, NeedType, |
| 1603 | SS, !WasScopeAnnotation); |
| 1604 | } |
| 1605 | |
| 1606 | /// \brief Try to annotate a type or scope token, having already parsed an |
| 1607 | /// optional scope specifier. \p IsNewScope should be \c true unless the scope |
| 1608 | /// specifier was extracted from an existing tok::annot_cxxscope annotation. |
| 1609 | bool Parser::TryAnnotateTypeOrScopeTokenAfterScopeSpec(bool EnteringContext, |
| 1610 | bool NeedType, |
| 1611 | CXXScopeSpec &SS, |
| 1612 | bool IsNewScope) { |
Argyrios Kyrtzidis | eb83ecd | 2008-11-08 16:45:02 +0000 | [diff] [blame] | 1613 | if (Tok.is(tok::identifier)) { |
Kaelyn Uhrain | fac9467 | 2011-10-11 01:02:41 +0000 | [diff] [blame] | 1614 | IdentifierInfo *CorrectedII = 0; |
Chris Lattner | 608d1fc | 2009-01-05 01:49:50 +0000 | [diff] [blame] | 1615 | // Determine whether the identifier is a type name. |
John McCall | b3d8748 | 2010-08-24 05:47:05 +0000 | [diff] [blame] | 1616 | if (ParsedType Ty = Actions.getTypeName(*Tok.getIdentifierInfo(), |
| 1617 | Tok.getLocation(), getCurScope(), |
Fariborz Jahanian | 1e52dfc | 2011-02-08 18:05:59 +0000 | [diff] [blame] | 1618 | &SS, false, |
Douglas Gregor | 9e87687 | 2011-03-01 18:12:44 +0000 | [diff] [blame] | 1619 | NextToken().is(tok::period), |
| 1620 | ParsedType(), |
Abramo Bagnara | fad03b7 | 2012-01-27 08:46:19 +0000 | [diff] [blame] | 1621 | /*IsCtorOrDtorName=*/false, |
Kaelyn Uhrain | fac9467 | 2011-10-11 01:02:41 +0000 | [diff] [blame] | 1622 | /*NonTrivialTypeSourceInfo*/true, |
| 1623 | NeedType ? &CorrectedII : NULL)) { |
| 1624 | // A FixIt was applied as a result of typo correction |
| 1625 | if (CorrectedII) |
| 1626 | Tok.setIdentifierInfo(CorrectedII); |
Chris Lattner | 608d1fc | 2009-01-05 01:49:50 +0000 | [diff] [blame] | 1627 | // This is a typename. Replace the current token in-place with an |
| 1628 | // annotation type token. |
Chris Lattner | b31757b | 2009-01-06 05:06:21 +0000 | [diff] [blame] | 1629 | Tok.setKind(tok::annot_typename); |
John McCall | b3d8748 | 2010-08-24 05:47:05 +0000 | [diff] [blame] | 1630 | setTypeAnnotation(Tok, Ty); |
Chris Lattner | 608d1fc | 2009-01-05 01:49:50 +0000 | [diff] [blame] | 1631 | Tok.setAnnotationEndLoc(Tok.getLocation()); |
| 1632 | if (SS.isNotEmpty()) // it was a C++ qualified type name. |
| 1633 | Tok.setLocation(SS.getBeginLoc()); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1634 | |
Chris Lattner | 608d1fc | 2009-01-05 01:49:50 +0000 | [diff] [blame] | 1635 | // In case the tokens were cached, have Preprocessor replace |
| 1636 | // them with the annotation token. |
| 1637 | PP.AnnotateCachedTokens(Tok); |
John McCall | 9ba6166 | 2010-02-26 08:45:28 +0000 | [diff] [blame] | 1638 | return false; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1639 | } |
Douglas Gregor | 39a8de1 | 2009-02-25 19:37:18 +0000 | [diff] [blame] | 1640 | |
David Blaikie | 4e4d084 | 2012-03-11 07:00:24 +0000 | [diff] [blame] | 1641 | if (!getLangOpts().CPlusPlus) { |
Chris Lattner | 608d1fc | 2009-01-05 01:49:50 +0000 | [diff] [blame] | 1642 | // If we're in C, we can't have :: tokens at all (the lexer won't return |
| 1643 | // them). If the identifier is not a type, then it can't be scope either, |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1644 | // just early exit. |
Chris Lattner | 608d1fc | 2009-01-05 01:49:50 +0000 | [diff] [blame] | 1645 | return false; |
Argyrios Kyrtzidis | eb83ecd | 2008-11-08 16:45:02 +0000 | [diff] [blame] | 1646 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1647 | |
Douglas Gregor | 39a8de1 | 2009-02-25 19:37:18 +0000 | [diff] [blame] | 1648 | // If this is a template-id, annotate with a template-id or type token. |
Douglas Gregor | 55f6b14 | 2009-02-09 18:46:07 +0000 | [diff] [blame] | 1649 | if (NextToken().is(tok::less)) { |
Douglas Gregor | 7532dc6 | 2009-03-30 22:58:21 +0000 | [diff] [blame] | 1650 | TemplateTy Template; |
Douglas Gregor | 014e88d | 2009-11-03 23:16:33 +0000 | [diff] [blame] | 1651 | UnqualifiedId TemplateName; |
| 1652 | TemplateName.setIdentifier(Tok.getIdentifierInfo(), Tok.getLocation()); |
Douglas Gregor | 1fd6d44 | 2010-05-21 23:18:07 +0000 | [diff] [blame] | 1653 | bool MemberOfUnknownSpecialization; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1654 | if (TemplateNameKind TNK |
Abramo Bagnara | 7c15353 | 2010-08-06 12:11:11 +0000 | [diff] [blame] | 1655 | = Actions.isTemplateName(getCurScope(), SS, |
| 1656 | /*hasTemplateKeyword=*/false, TemplateName, |
John McCall | b3d8748 | 2010-08-24 05:47:05 +0000 | [diff] [blame] | 1657 | /*ObjectType=*/ ParsedType(), |
| 1658 | EnteringContext, |
Abramo Bagnara | 7c15353 | 2010-08-06 12:11:11 +0000 | [diff] [blame] | 1659 | Template, MemberOfUnknownSpecialization)) { |
Douglas Gregor | ca1bdd7 | 2009-11-04 00:56:37 +0000 | [diff] [blame] | 1660 | // Consume the identifier. |
| 1661 | ConsumeToken(); |
Abramo Bagnara | e4b9276 | 2012-01-27 09:46:47 +0000 | [diff] [blame] | 1662 | if (AnnotateTemplateIdToken(Template, TNK, SS, SourceLocation(), |
| 1663 | TemplateName)) { |
Chris Lattner | c8e27cc | 2009-06-26 04:27:47 +0000 | [diff] [blame] | 1664 | // If an unrecoverable error occurred, we need to return true here, |
| 1665 | // because the token stream is in a damaged state. We may not return |
| 1666 | // a valid identifier. |
John McCall | 9ba6166 | 2010-02-26 08:45:28 +0000 | [diff] [blame] | 1667 | return true; |
Chris Lattner | c8e27cc | 2009-06-26 04:27:47 +0000 | [diff] [blame] | 1668 | } |
Douglas Gregor | ca1bdd7 | 2009-11-04 00:56:37 +0000 | [diff] [blame] | 1669 | } |
Douglas Gregor | 55f6b14 | 2009-02-09 18:46:07 +0000 | [diff] [blame] | 1670 | } |
Douglas Gregor | d6fb7ef | 2008-12-18 19:37:40 +0000 | [diff] [blame] | 1671 | |
Douglas Gregor | 39a8de1 | 2009-02-25 19:37:18 +0000 | [diff] [blame] | 1672 | // The current token, which is either an identifier or a |
| 1673 | // template-id, is not part of the annotation. Fall through to |
| 1674 | // push that token back into the stream and complete the C++ scope |
| 1675 | // specifier annotation. |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1676 | } |
Argyrios Kyrtzidis | eb83ecd | 2008-11-08 16:45:02 +0000 | [diff] [blame] | 1677 | |
Douglas Gregor | 39a8de1 | 2009-02-25 19:37:18 +0000 | [diff] [blame] | 1678 | if (Tok.is(tok::annot_template_id)) { |
Argyrios Kyrtzidis | 25a7676 | 2011-06-22 06:09:49 +0000 | [diff] [blame] | 1679 | TemplateIdAnnotation *TemplateId = takeTemplateIdAnnotation(Tok); |
Douglas Gregor | c45c232 | 2009-03-31 00:43:58 +0000 | [diff] [blame] | 1680 | if (TemplateId->Kind == TNK_Type_template) { |
Douglas Gregor | 39a8de1 | 2009-02-25 19:37:18 +0000 | [diff] [blame] | 1681 | // A template-id that refers to a type was parsed into a |
| 1682 | // template-id annotation in a context where we weren't allowed |
| 1683 | // to produce a type annotation token. Update the template-id |
| 1684 | // annotation token to a type annotation token now. |
Douglas Gregor | 059101f | 2011-03-02 00:47:37 +0000 | [diff] [blame] | 1685 | AnnotateTemplateIdTokenAsType(); |
John McCall | 9ba6166 | 2010-02-26 08:45:28 +0000 | [diff] [blame] | 1686 | return false; |
Larisse Voufo | ef4579c | 2013-08-06 01:03:05 +0000 | [diff] [blame] | 1687 | } else if (TemplateId->Kind == TNK_Var_template) |
| 1688 | return false; |
Douglas Gregor | 39a8de1 | 2009-02-25 19:37:18 +0000 | [diff] [blame] | 1689 | } |
Douglas Gregor | d6fb7ef | 2008-12-18 19:37:40 +0000 | [diff] [blame] | 1690 | |
Chris Lattner | 6ec76d4 | 2009-01-04 22:32:19 +0000 | [diff] [blame] | 1691 | if (SS.isEmpty()) |
John McCall | 9ba6166 | 2010-02-26 08:45:28 +0000 | [diff] [blame] | 1692 | return false; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1693 | |
Chris Lattner | 6ec76d4 | 2009-01-04 22:32:19 +0000 | [diff] [blame] | 1694 | // A C++ scope specifier that isn't followed by a typename. |
Richard Smith | 0576681 | 2012-08-18 00:55:03 +0000 | [diff] [blame] | 1695 | AnnotateScopeToken(SS, IsNewScope); |
John McCall | 9ba6166 | 2010-02-26 08:45:28 +0000 | [diff] [blame] | 1696 | return false; |
Argyrios Kyrtzidis | eb83ecd | 2008-11-08 16:45:02 +0000 | [diff] [blame] | 1697 | } |
| 1698 | |
| 1699 | /// TryAnnotateScopeToken - Like TryAnnotateTypeOrScopeToken but only |
Douglas Gregor | 39a8de1 | 2009-02-25 19:37:18 +0000 | [diff] [blame] | 1700 | /// annotates C++ scope specifiers and template-ids. This returns |
Richard Smith | 83a22ec | 2012-05-09 08:23:23 +0000 | [diff] [blame] | 1701 | /// true if there was an error that could not be recovered from. |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1702 | /// |
Chris Lattner | 55a7cef | 2009-01-05 00:13:00 +0000 | [diff] [blame] | 1703 | /// Note that this routine emits an error if you call it with ::new or ::delete |
| 1704 | /// as the current tokens, so only call it in contexts where these are invalid. |
Douglas Gregor | 495c35d | 2009-08-25 22:51:20 +0000 | [diff] [blame] | 1705 | bool Parser::TryAnnotateCXXScopeToken(bool EnteringContext) { |
David Blaikie | 4e4d084 | 2012-03-11 07:00:24 +0000 | [diff] [blame] | 1706 | assert(getLangOpts().CPlusPlus && |
Chris Lattner | 6ec76d4 | 2009-01-04 22:32:19 +0000 | [diff] [blame] | 1707 | "Call sites of this function should be guarded by checking for C++"); |
Douglas Gregor | 3b88735 | 2011-04-27 04:48:22 +0000 | [diff] [blame] | 1708 | assert((Tok.is(tok::identifier) || Tok.is(tok::coloncolon) || |
David Blaikie | 42d6d0c | 2011-12-04 05:04:18 +0000 | [diff] [blame] | 1709 | (Tok.is(tok::annot_template_id) && NextToken().is(tok::coloncolon)) || |
| 1710 | Tok.is(tok::kw_decltype)) && "Cannot be a type or scope token!"); |
Argyrios Kyrtzidis | eb83ecd | 2008-11-08 16:45:02 +0000 | [diff] [blame] | 1711 | |
Argyrios Kyrtzidis | 4bdd91c | 2008-11-26 21:41:52 +0000 | [diff] [blame] | 1712 | CXXScopeSpec SS; |
John McCall | b3d8748 | 2010-08-24 05:47:05 +0000 | [diff] [blame] | 1713 | if (ParseOptionalCXXScopeSpecifier(SS, ParsedType(), EnteringContext)) |
John McCall | 9ba6166 | 2010-02-26 08:45:28 +0000 | [diff] [blame] | 1714 | return true; |
Jeffrey Yasskin | edc2877 | 2010-04-07 23:29:58 +0000 | [diff] [blame] | 1715 | if (SS.isEmpty()) |
John McCall | 9ba6166 | 2010-02-26 08:45:28 +0000 | [diff] [blame] | 1716 | return false; |
Argyrios Kyrtzidis | eb83ecd | 2008-11-08 16:45:02 +0000 | [diff] [blame] | 1717 | |
Richard Smith | 0576681 | 2012-08-18 00:55:03 +0000 | [diff] [blame] | 1718 | AnnotateScopeToken(SS, true); |
John McCall | 9ba6166 | 2010-02-26 08:45:28 +0000 | [diff] [blame] | 1719 | return false; |
Argyrios Kyrtzidis | eb83ecd | 2008-11-08 16:45:02 +0000 | [diff] [blame] | 1720 | } |
John McCall | 6c94a6d | 2009-11-03 19:33:12 +0000 | [diff] [blame] | 1721 | |
Richard Trieu | fcaf27e | 2012-01-19 22:01:51 +0000 | [diff] [blame] | 1722 | bool Parser::isTokenEqualOrEqualTypo() { |
| 1723 | tok::TokenKind Kind = Tok.getKind(); |
| 1724 | switch (Kind) { |
| 1725 | default: |
Richard Trieu | d6c7c67 | 2012-01-18 22:54:52 +0000 | [diff] [blame] | 1726 | return false; |
Richard Trieu | fcaf27e | 2012-01-19 22:01:51 +0000 | [diff] [blame] | 1727 | case tok::ampequal: // &= |
| 1728 | case tok::starequal: // *= |
| 1729 | case tok::plusequal: // += |
| 1730 | case tok::minusequal: // -= |
| 1731 | case tok::exclaimequal: // != |
| 1732 | case tok::slashequal: // /= |
| 1733 | case tok::percentequal: // %= |
| 1734 | case tok::lessequal: // <= |
| 1735 | case tok::lesslessequal: // <<= |
| 1736 | case tok::greaterequal: // >= |
| 1737 | case tok::greatergreaterequal: // >>= |
| 1738 | case tok::caretequal: // ^= |
| 1739 | case tok::pipeequal: // |= |
| 1740 | case tok::equalequal: // == |
| 1741 | Diag(Tok, diag::err_invalid_token_after_declarator_suggest_equal) |
| 1742 | << getTokenSimpleSpelling(Kind) |
| 1743 | << FixItHint::CreateReplacement(SourceRange(Tok.getLocation()), "="); |
| 1744 | case tok::equal: |
| 1745 | return true; |
| 1746 | } |
Argyrios Kyrtzidis | a6eb5f8 | 2010-10-08 02:39:23 +0000 | [diff] [blame] | 1747 | } |
| 1748 | |
Argyrios Kyrtzidis | 7d10087 | 2011-09-04 03:32:15 +0000 | [diff] [blame] | 1749 | SourceLocation Parser::handleUnexpectedCodeCompletionToken() { |
| 1750 | assert(Tok.is(tok::code_completion)); |
| 1751 | PrevTokLocation = Tok.getLocation(); |
| 1752 | |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 1753 | for (Scope *S = getCurScope(); S; S = S->getParent()) { |
Douglas Gregor | dc84534 | 2010-05-25 05:58:43 +0000 | [diff] [blame] | 1754 | if (S->getFlags() & Scope::FnScope) { |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 1755 | Actions.CodeCompleteOrdinaryName(getCurScope(), Sema::PCC_RecoveryInFunction); |
Argyrios Kyrtzidis | 7d10087 | 2011-09-04 03:32:15 +0000 | [diff] [blame] | 1756 | cutOffParsing(); |
| 1757 | return PrevTokLocation; |
Douglas Gregor | dc84534 | 2010-05-25 05:58:43 +0000 | [diff] [blame] | 1758 | } |
| 1759 | |
| 1760 | if (S->getFlags() & Scope::ClassScope) { |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 1761 | Actions.CodeCompleteOrdinaryName(getCurScope(), Sema::PCC_Class); |
Argyrios Kyrtzidis | 7d10087 | 2011-09-04 03:32:15 +0000 | [diff] [blame] | 1762 | cutOffParsing(); |
| 1763 | return PrevTokLocation; |
Douglas Gregor | dc84534 | 2010-05-25 05:58:43 +0000 | [diff] [blame] | 1764 | } |
| 1765 | } |
| 1766 | |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 1767 | Actions.CodeCompleteOrdinaryName(getCurScope(), Sema::PCC_Namespace); |
Argyrios Kyrtzidis | 7d10087 | 2011-09-04 03:32:15 +0000 | [diff] [blame] | 1768 | cutOffParsing(); |
| 1769 | return PrevTokLocation; |
Douglas Gregor | dc84534 | 2010-05-25 05:58:43 +0000 | [diff] [blame] | 1770 | } |
| 1771 | |
John McCall | 6c94a6d | 2009-11-03 19:33:12 +0000 | [diff] [blame] | 1772 | // Anchor the Parser::FieldCallback vtable to this translation unit. |
| 1773 | // We use a spurious method instead of the destructor because |
| 1774 | // destroying FieldCallbacks can actually be slightly |
| 1775 | // performance-sensitive. |
| 1776 | void Parser::FieldCallback::_anchor() { |
| 1777 | } |
Douglas Gregor | f44e854 | 2010-08-24 19:08:16 +0000 | [diff] [blame] | 1778 | |
| 1779 | // Code-completion pass-through functions |
| 1780 | |
| 1781 | void Parser::CodeCompleteDirective(bool InConditional) { |
Douglas Gregor | f29c523 | 2010-08-24 22:20:20 +0000 | [diff] [blame] | 1782 | Actions.CodeCompletePreprocessorDirective(InConditional); |
Douglas Gregor | f44e854 | 2010-08-24 19:08:16 +0000 | [diff] [blame] | 1783 | } |
| 1784 | |
| 1785 | void Parser::CodeCompleteInConditionalExclusion() { |
| 1786 | Actions.CodeCompleteInPreprocessorConditionalExclusion(getCurScope()); |
| 1787 | } |
Douglas Gregor | 1fbb447 | 2010-08-24 20:21:13 +0000 | [diff] [blame] | 1788 | |
| 1789 | void Parser::CodeCompleteMacroName(bool IsDefinition) { |
Douglas Gregor | f29c523 | 2010-08-24 22:20:20 +0000 | [diff] [blame] | 1790 | Actions.CodeCompletePreprocessorMacroName(IsDefinition); |
| 1791 | } |
| 1792 | |
| 1793 | void Parser::CodeCompletePreprocessorExpression() { |
| 1794 | Actions.CodeCompletePreprocessorExpression(); |
| 1795 | } |
| 1796 | |
| 1797 | void Parser::CodeCompleteMacroArgument(IdentifierInfo *Macro, |
| 1798 | MacroInfo *MacroInfo, |
| 1799 | unsigned ArgumentIndex) { |
| 1800 | Actions.CodeCompletePreprocessorMacroArgument(getCurScope(), Macro, MacroInfo, |
| 1801 | ArgumentIndex); |
Douglas Gregor | 1fbb447 | 2010-08-24 20:21:13 +0000 | [diff] [blame] | 1802 | } |
Douglas Gregor | 55817af | 2010-08-25 17:04:25 +0000 | [diff] [blame] | 1803 | |
| 1804 | void Parser::CodeCompleteNaturalLanguage() { |
| 1805 | Actions.CodeCompleteNaturalLanguage(); |
| 1806 | } |
Francois Pichet | f986038 | 2011-05-07 17:30:27 +0000 | [diff] [blame] | 1807 | |
Douglas Gregor | 3896fc5 | 2011-10-24 22:31:10 +0000 | [diff] [blame] | 1808 | bool Parser::ParseMicrosoftIfExistsCondition(IfExistsCondition& Result) { |
Francois Pichet | f986038 | 2011-05-07 17:30:27 +0000 | [diff] [blame] | 1809 | assert((Tok.is(tok::kw___if_exists) || Tok.is(tok::kw___if_not_exists)) && |
| 1810 | "Expected '__if_exists' or '__if_not_exists'"); |
Douglas Gregor | 3896fc5 | 2011-10-24 22:31:10 +0000 | [diff] [blame] | 1811 | Result.IsIfExists = Tok.is(tok::kw___if_exists); |
| 1812 | Result.KeywordLoc = ConsumeToken(); |
Francois Pichet | f986038 | 2011-05-07 17:30:27 +0000 | [diff] [blame] | 1813 | |
Douglas Gregor | 4a8dfb5 | 2011-10-12 16:37:45 +0000 | [diff] [blame] | 1814 | BalancedDelimiterTracker T(*this, tok::l_paren); |
| 1815 | if (T.consumeOpen()) { |
Douglas Gregor | 3896fc5 | 2011-10-24 22:31:10 +0000 | [diff] [blame] | 1816 | Diag(Tok, diag::err_expected_lparen_after) |
| 1817 | << (Result.IsIfExists? "__if_exists" : "__if_not_exists"); |
Francois Pichet | f986038 | 2011-05-07 17:30:27 +0000 | [diff] [blame] | 1818 | return true; |
| 1819 | } |
Francois Pichet | f986038 | 2011-05-07 17:30:27 +0000 | [diff] [blame] | 1820 | |
| 1821 | // Parse nested-name-specifier. |
Douglas Gregor | efaa93a | 2011-11-07 17:33:42 +0000 | [diff] [blame] | 1822 | ParseOptionalCXXScopeSpecifier(Result.SS, ParsedType(), |
| 1823 | /*EnteringContext=*/false); |
Francois Pichet | f986038 | 2011-05-07 17:30:27 +0000 | [diff] [blame] | 1824 | |
| 1825 | // Check nested-name specifier. |
Douglas Gregor | 3896fc5 | 2011-10-24 22:31:10 +0000 | [diff] [blame] | 1826 | if (Result.SS.isInvalid()) { |
| 1827 | T.skipToEnd(); |
Francois Pichet | f986038 | 2011-05-07 17:30:27 +0000 | [diff] [blame] | 1828 | return true; |
| 1829 | } |
| 1830 | |
Abramo Bagnara | e4b9276 | 2012-01-27 09:46:47 +0000 | [diff] [blame] | 1831 | // Parse the unqualified-id. |
| 1832 | SourceLocation TemplateKWLoc; // FIXME: parsed, but unused. |
| 1833 | if (ParseUnqualifiedId(Result.SS, false, true, true, ParsedType(), |
| 1834 | TemplateKWLoc, Result.Name)) { |
Douglas Gregor | 3896fc5 | 2011-10-24 22:31:10 +0000 | [diff] [blame] | 1835 | T.skipToEnd(); |
Francois Pichet | f986038 | 2011-05-07 17:30:27 +0000 | [diff] [blame] | 1836 | return true; |
| 1837 | } |
| 1838 | |
Douglas Gregor | 3896fc5 | 2011-10-24 22:31:10 +0000 | [diff] [blame] | 1839 | if (T.consumeClose()) |
Francois Pichet | f986038 | 2011-05-07 17:30:27 +0000 | [diff] [blame] | 1840 | return true; |
Douglas Gregor | 3896fc5 | 2011-10-24 22:31:10 +0000 | [diff] [blame] | 1841 | |
Francois Pichet | f986038 | 2011-05-07 17:30:27 +0000 | [diff] [blame] | 1842 | // Check if the symbol exists. |
Douglas Gregor | 65019ac | 2011-10-25 03:44:56 +0000 | [diff] [blame] | 1843 | switch (Actions.CheckMicrosoftIfExistsSymbol(getCurScope(), Result.KeywordLoc, |
| 1844 | Result.IsIfExists, Result.SS, |
Douglas Gregor | 3896fc5 | 2011-10-24 22:31:10 +0000 | [diff] [blame] | 1845 | Result.Name)) { |
| 1846 | case Sema::IER_Exists: |
| 1847 | Result.Behavior = Result.IsIfExists ? IEB_Parse : IEB_Skip; |
| 1848 | break; |
Francois Pichet | f986038 | 2011-05-07 17:30:27 +0000 | [diff] [blame] | 1849 | |
Douglas Gregor | 3896fc5 | 2011-10-24 22:31:10 +0000 | [diff] [blame] | 1850 | case Sema::IER_DoesNotExist: |
| 1851 | Result.Behavior = !Result.IsIfExists ? IEB_Parse : IEB_Skip; |
| 1852 | break; |
| 1853 | |
| 1854 | case Sema::IER_Dependent: |
| 1855 | Result.Behavior = IEB_Dependent; |
| 1856 | break; |
Douglas Gregor | 65019ac | 2011-10-25 03:44:56 +0000 | [diff] [blame] | 1857 | |
| 1858 | case Sema::IER_Error: |
| 1859 | return true; |
Douglas Gregor | 3896fc5 | 2011-10-24 22:31:10 +0000 | [diff] [blame] | 1860 | } |
Francois Pichet | f986038 | 2011-05-07 17:30:27 +0000 | [diff] [blame] | 1861 | |
| 1862 | return false; |
| 1863 | } |
| 1864 | |
Francois Pichet | 563a645 | 2011-05-25 10:19:49 +0000 | [diff] [blame] | 1865 | void Parser::ParseMicrosoftIfExistsExternalDeclaration() { |
Douglas Gregor | 3896fc5 | 2011-10-24 22:31:10 +0000 | [diff] [blame] | 1866 | IfExistsCondition Result; |
Francois Pichet | f986038 | 2011-05-07 17:30:27 +0000 | [diff] [blame] | 1867 | if (ParseMicrosoftIfExistsCondition(Result)) |
| 1868 | return; |
| 1869 | |
Douglas Gregor | 3896fc5 | 2011-10-24 22:31:10 +0000 | [diff] [blame] | 1870 | BalancedDelimiterTracker Braces(*this, tok::l_brace); |
| 1871 | if (Braces.consumeOpen()) { |
Francois Pichet | f986038 | 2011-05-07 17:30:27 +0000 | [diff] [blame] | 1872 | Diag(Tok, diag::err_expected_lbrace); |
| 1873 | return; |
| 1874 | } |
Francois Pichet | f986038 | 2011-05-07 17:30:27 +0000 | [diff] [blame] | 1875 | |
Douglas Gregor | 3896fc5 | 2011-10-24 22:31:10 +0000 | [diff] [blame] | 1876 | switch (Result.Behavior) { |
| 1877 | case IEB_Parse: |
| 1878 | // Parse declarations below. |
| 1879 | break; |
| 1880 | |
| 1881 | case IEB_Dependent: |
| 1882 | llvm_unreachable("Cannot have a dependent external declaration"); |
| 1883 | |
| 1884 | case IEB_Skip: |
| 1885 | Braces.skipToEnd(); |
Francois Pichet | f986038 | 2011-05-07 17:30:27 +0000 | [diff] [blame] | 1886 | return; |
| 1887 | } |
| 1888 | |
Douglas Gregor | 3896fc5 | 2011-10-24 22:31:10 +0000 | [diff] [blame] | 1889 | // Parse the declarations. |
| 1890 | while (Tok.isNot(tok::r_brace) && Tok.isNot(tok::eof)) { |
Francois Pichet | f986038 | 2011-05-07 17:30:27 +0000 | [diff] [blame] | 1891 | ParsedAttributesWithRange attrs(AttrFactory); |
Richard Smith | 4e24f0f | 2013-01-02 12:01:23 +0000 | [diff] [blame] | 1892 | MaybeParseCXX11Attributes(attrs); |
Francois Pichet | f986038 | 2011-05-07 17:30:27 +0000 | [diff] [blame] | 1893 | MaybeParseMicrosoftAttributes(attrs); |
| 1894 | DeclGroupPtrTy Result = ParseExternalDeclaration(attrs); |
| 1895 | if (Result && !getCurScope()->getParent()) |
| 1896 | Actions.getASTConsumer().HandleTopLevelDecl(Result.get()); |
Douglas Gregor | 3896fc5 | 2011-10-24 22:31:10 +0000 | [diff] [blame] | 1897 | } |
| 1898 | Braces.consumeClose(); |
Francois Pichet | f986038 | 2011-05-07 17:30:27 +0000 | [diff] [blame] | 1899 | } |
Douglas Gregor | 6aa52ec | 2011-08-26 23:56:07 +0000 | [diff] [blame] | 1900 | |
Douglas Gregor | 5948ae1 | 2012-01-03 18:04:46 +0000 | [diff] [blame] | 1901 | Parser::DeclGroupPtrTy Parser::ParseModuleImport(SourceLocation AtLoc) { |
Douglas Gregor | 1b257af | 2012-12-11 22:11:52 +0000 | [diff] [blame] | 1902 | assert(Tok.isObjCAtKeyword(tok::objc_import) && |
Douglas Gregor | 65030af | 2011-08-31 18:19:09 +0000 | [diff] [blame] | 1903 | "Improper start to module import"); |
Douglas Gregor | 6aa52ec | 2011-08-26 23:56:07 +0000 | [diff] [blame] | 1904 | SourceLocation ImportLoc = ConsumeToken(); |
| 1905 | |
Dmitri Gribenko | cfa88f8 | 2013-01-12 19:30:44 +0000 | [diff] [blame] | 1906 | SmallVector<std::pair<IdentifierInfo *, SourceLocation>, 2> Path; |
Douglas Gregor | 6aa52ec | 2011-08-26 23:56:07 +0000 | [diff] [blame] | 1907 | |
Douglas Gregor | 3d3589d | 2011-11-30 00:36:36 +0000 | [diff] [blame] | 1908 | // Parse the module path. |
| 1909 | do { |
| 1910 | if (!Tok.is(tok::identifier)) { |
Douglas Gregor | c5b2e58 | 2012-01-29 18:15:03 +0000 | [diff] [blame] | 1911 | if (Tok.is(tok::code_completion)) { |
| 1912 | Actions.CodeCompleteModuleImport(ImportLoc, Path); |
| 1913 | ConsumeCodeCompletionToken(); |
| 1914 | SkipUntil(tok::semi); |
| 1915 | return DeclGroupPtrTy(); |
| 1916 | } |
| 1917 | |
Douglas Gregor | 3d3589d | 2011-11-30 00:36:36 +0000 | [diff] [blame] | 1918 | Diag(Tok, diag::err_module_expected_ident); |
| 1919 | SkipUntil(tok::semi); |
| 1920 | return DeclGroupPtrTy(); |
| 1921 | } |
| 1922 | |
| 1923 | // Record this part of the module path. |
| 1924 | Path.push_back(std::make_pair(Tok.getIdentifierInfo(), Tok.getLocation())); |
| 1925 | ConsumeToken(); |
| 1926 | |
| 1927 | if (Tok.is(tok::period)) { |
| 1928 | ConsumeToken(); |
| 1929 | continue; |
| 1930 | } |
| 1931 | |
| 1932 | break; |
| 1933 | } while (true); |
Argyrios Kyrtzidis | 3b7deda | 2013-05-24 05:44:08 +0000 | [diff] [blame] | 1934 | |
| 1935 | if (PP.hadModuleLoaderFatalFailure()) { |
| 1936 | // With a fatal failure in the module loader, we abort parsing. |
| 1937 | cutOffParsing(); |
| 1938 | return DeclGroupPtrTy(); |
| 1939 | } |
| 1940 | |
Douglas Gregor | 5948ae1 | 2012-01-03 18:04:46 +0000 | [diff] [blame] | 1941 | DeclResult Import = Actions.ActOnModuleImport(AtLoc, ImportLoc, Path); |
Douglas Gregor | 6aa52ec | 2011-08-26 23:56:07 +0000 | [diff] [blame] | 1942 | ExpectAndConsumeSemi(diag::err_module_expected_semi); |
| 1943 | if (Import.isInvalid()) |
| 1944 | return DeclGroupPtrTy(); |
| 1945 | |
| 1946 | return Actions.ConvertDeclToDeclGroup(Import.get()); |
| 1947 | } |
Douglas Gregor | 4a8dfb5 | 2011-10-12 16:37:45 +0000 | [diff] [blame] | 1948 | |
Douglas Gregor | c86c40b | 2012-06-06 21:18:07 +0000 | [diff] [blame] | 1949 | bool BalancedDelimiterTracker::diagnoseOverflow() { |
Richard Smith | 9e738cc | 2013-02-22 01:59:51 +0000 | [diff] [blame] | 1950 | P.Diag(P.Tok, diag::err_bracket_depth_exceeded) |
| 1951 | << P.getLangOpts().BracketDepth; |
| 1952 | P.Diag(P.Tok, diag::note_bracket_depth); |
Rafael Espindola | d66bf94 | 2013-07-25 02:11:20 +0000 | [diff] [blame] | 1953 | P.SkipUntil(tok::eof, false); |
Douglas Gregor | d78ef5b | 2012-03-08 01:00:17 +0000 | [diff] [blame] | 1954 | return true; |
Douglas Gregor | 4a8dfb5 | 2011-10-12 16:37:45 +0000 | [diff] [blame] | 1955 | } |
| 1956 | |
Douglas Gregor | c86c40b | 2012-06-06 21:18:07 +0000 | [diff] [blame] | 1957 | bool BalancedDelimiterTracker::expectAndConsume(unsigned DiagID, |
Douglas Gregor | 4a8dfb5 | 2011-10-12 16:37:45 +0000 | [diff] [blame] | 1958 | const char *Msg, |
| 1959 | tok::TokenKind SkipToToc ) { |
| 1960 | LOpen = P.Tok.getLocation(); |
Douglas Gregor | d78ef5b | 2012-03-08 01:00:17 +0000 | [diff] [blame] | 1961 | if (P.ExpectAndConsume(Kind, DiagID, Msg, SkipToToc)) |
| 1962 | return true; |
| 1963 | |
| 1964 | if (getDepth() < MaxDepth) |
| 1965 | return false; |
| 1966 | |
| 1967 | return diagnoseOverflow(); |
Douglas Gregor | 4a8dfb5 | 2011-10-12 16:37:45 +0000 | [diff] [blame] | 1968 | } |
| 1969 | |
Douglas Gregor | c86c40b | 2012-06-06 21:18:07 +0000 | [diff] [blame] | 1970 | bool BalancedDelimiterTracker::diagnoseMissingClose() { |
Douglas Gregor | d78ef5b | 2012-03-08 01:00:17 +0000 | [diff] [blame] | 1971 | assert(!P.Tok.is(Close) && "Should have consumed closing delimiter"); |
| 1972 | |
| 1973 | const char *LHSName = "unknown"; |
David Blaikie | b031eab | 2012-04-06 23:33:59 +0000 | [diff] [blame] | 1974 | diag::kind DID; |
Douglas Gregor | d78ef5b | 2012-03-08 01:00:17 +0000 | [diff] [blame] | 1975 | switch (Close) { |
David Blaikie | b031eab | 2012-04-06 23:33:59 +0000 | [diff] [blame] | 1976 | default: llvm_unreachable("Unexpected balanced token"); |
Douglas Gregor | d78ef5b | 2012-03-08 01:00:17 +0000 | [diff] [blame] | 1977 | case tok::r_paren : LHSName = "("; DID = diag::err_expected_rparen; break; |
| 1978 | case tok::r_brace : LHSName = "{"; DID = diag::err_expected_rbrace; break; |
| 1979 | case tok::r_square: LHSName = "["; DID = diag::err_expected_rsquare; break; |
Douglas Gregor | 4a8dfb5 | 2011-10-12 16:37:45 +0000 | [diff] [blame] | 1980 | } |
Douglas Gregor | d78ef5b | 2012-03-08 01:00:17 +0000 | [diff] [blame] | 1981 | P.Diag(P.Tok, DID); |
| 1982 | P.Diag(LOpen, diag::note_matching) << LHSName; |
Richard Smith | 5eed7e0 | 2013-10-15 01:34:54 +0000 | [diff] [blame] | 1983 | |
| 1984 | // If we're not already at some kind of closing bracket, skip to our closing |
| 1985 | // token. |
| 1986 | if (P.Tok.isNot(tok::r_paren) && P.Tok.isNot(tok::r_brace) && |
| 1987 | P.Tok.isNot(tok::r_square) && |
| 1988 | P.SkipUntil(Close, FinalToken, /*StopAtSemi*/true, /*DontConsume*/true) && |
| 1989 | P.Tok.is(Close)) |
David Blaikie | b578aee | 2012-11-07 19:08:05 +0000 | [diff] [blame] | 1990 | LClose = P.ConsumeAnyToken(); |
Douglas Gregor | 4a8dfb5 | 2011-10-12 16:37:45 +0000 | [diff] [blame] | 1991 | return true; |
| 1992 | } |
Douglas Gregor | 3896fc5 | 2011-10-24 22:31:10 +0000 | [diff] [blame] | 1993 | |
Douglas Gregor | c86c40b | 2012-06-06 21:18:07 +0000 | [diff] [blame] | 1994 | void BalancedDelimiterTracker::skipToEnd() { |
Richard Smith | 5eed7e0 | 2013-10-15 01:34:54 +0000 | [diff] [blame] | 1995 | P.SkipUntil(Close, false, true); |
| 1996 | consumeClose(); |
Douglas Gregor | 3896fc5 | 2011-10-24 22:31:10 +0000 | [diff] [blame] | 1997 | } |