Chris Lattner | 8f08cb7 | 2007-08-25 06:57:03 +0000 | [diff] [blame] | 1 | //===--- ParseDeclCXX.cpp - C++ Declaration Parsing -----------------------===// |
| 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. |
Chris Lattner | 8f08cb7 | 2007-08-25 06:57:03 +0000 | [diff] [blame] | 7 | // |
| 8 | //===----------------------------------------------------------------------===// |
| 9 | // |
| 10 | // This file implements the C++ Declaration portions of the Parser interfaces. |
| 11 | // |
| 12 | //===----------------------------------------------------------------------===// |
| 13 | |
Anders Carlsson | 0c6139d | 2009-06-27 00:27:47 +0000 | [diff] [blame] | 14 | #include "clang/Basic/OperatorKinds.h" |
Douglas Gregor | 1b7f898 | 2008-04-14 00:13:42 +0000 | [diff] [blame] | 15 | #include "clang/Parse/Parser.h" |
Chris Lattner | 500d329 | 2009-01-29 05:15:15 +0000 | [diff] [blame] | 16 | #include "clang/Parse/ParseDiagnostic.h" |
John McCall | 1951085 | 2010-08-20 18:27:03 +0000 | [diff] [blame] | 17 | #include "clang/Sema/DeclSpec.h" |
| 18 | #include "clang/Sema/Scope.h" |
| 19 | #include "clang/Sema/ParsedTemplate.h" |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 20 | #include "clang/Sema/PrettyDeclStackTrace.h" |
Chris Lattner | d167ca0 | 2009-12-10 00:21:05 +0000 | [diff] [blame] | 21 | #include "RAIIObjectsForParser.h" |
Chris Lattner | 8f08cb7 | 2007-08-25 06:57:03 +0000 | [diff] [blame] | 22 | using namespace clang; |
| 23 | |
| 24 | /// ParseNamespace - We know that the current token is a namespace keyword. This |
Sebastian Redl | d078e64 | 2010-08-27 23:12:46 +0000 | [diff] [blame] | 25 | /// may either be a top level namespace or a block-level namespace alias. If |
| 26 | /// there was an inline keyword, it has already been parsed. |
Chris Lattner | 8f08cb7 | 2007-08-25 06:57:03 +0000 | [diff] [blame] | 27 | /// |
| 28 | /// namespace-definition: [C++ 7.3: basic.namespace] |
| 29 | /// named-namespace-definition |
| 30 | /// unnamed-namespace-definition |
| 31 | /// |
| 32 | /// unnamed-namespace-definition: |
Sebastian Redl | d078e64 | 2010-08-27 23:12:46 +0000 | [diff] [blame] | 33 | /// 'inline'[opt] 'namespace' attributes[opt] '{' namespace-body '}' |
Chris Lattner | 8f08cb7 | 2007-08-25 06:57:03 +0000 | [diff] [blame] | 34 | /// |
| 35 | /// named-namespace-definition: |
| 36 | /// original-namespace-definition |
| 37 | /// extension-namespace-definition |
| 38 | /// |
| 39 | /// original-namespace-definition: |
Sebastian Redl | d078e64 | 2010-08-27 23:12:46 +0000 | [diff] [blame] | 40 | /// 'inline'[opt] 'namespace' identifier attributes[opt] |
| 41 | /// '{' namespace-body '}' |
Chris Lattner | 8f08cb7 | 2007-08-25 06:57:03 +0000 | [diff] [blame] | 42 | /// |
| 43 | /// extension-namespace-definition: |
Sebastian Redl | d078e64 | 2010-08-27 23:12:46 +0000 | [diff] [blame] | 44 | /// 'inline'[opt] 'namespace' original-namespace-name |
| 45 | /// '{' namespace-body '}' |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 46 | /// |
Chris Lattner | 8f08cb7 | 2007-08-25 06:57:03 +0000 | [diff] [blame] | 47 | /// namespace-alias-definition: [C++ 7.3.2: namespace.alias] |
| 48 | /// 'namespace' identifier '=' qualified-namespace-specifier ';' |
| 49 | /// |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 50 | Decl *Parser::ParseNamespace(unsigned Context, |
Sebastian Redl | d078e64 | 2010-08-27 23:12:46 +0000 | [diff] [blame] | 51 | SourceLocation &DeclEnd, |
| 52 | SourceLocation InlineLoc) { |
Chris Lattner | 04d6666 | 2007-10-09 17:33:22 +0000 | [diff] [blame] | 53 | assert(Tok.is(tok::kw_namespace) && "Not a namespace!"); |
Chris Lattner | 8f08cb7 | 2007-08-25 06:57:03 +0000 | [diff] [blame] | 54 | SourceLocation NamespaceLoc = ConsumeToken(); // eat the 'namespace'. |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 55 | |
Douglas Gregor | 49f40bd | 2009-09-18 19:03:04 +0000 | [diff] [blame] | 56 | if (Tok.is(tok::code_completion)) { |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 57 | Actions.CodeCompleteNamespaceDecl(getCurScope()); |
Douglas Gregor | dc84534 | 2010-05-25 05:58:43 +0000 | [diff] [blame] | 58 | ConsumeCodeCompletionToken(); |
Douglas Gregor | 49f40bd | 2009-09-18 19:03:04 +0000 | [diff] [blame] | 59 | } |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 60 | |
Chris Lattner | 8f08cb7 | 2007-08-25 06:57:03 +0000 | [diff] [blame] | 61 | SourceLocation IdentLoc; |
| 62 | IdentifierInfo *Ident = 0; |
Douglas Gregor | 6a588dd | 2009-06-17 19:49:00 +0000 | [diff] [blame] | 63 | |
| 64 | Token attrTok; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 65 | |
Chris Lattner | 04d6666 | 2007-10-09 17:33:22 +0000 | [diff] [blame] | 66 | if (Tok.is(tok::identifier)) { |
Chris Lattner | 8f08cb7 | 2007-08-25 06:57:03 +0000 | [diff] [blame] | 67 | Ident = Tok.getIdentifierInfo(); |
| 68 | IdentLoc = ConsumeToken(); // eat the identifier. |
| 69 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 70 | |
Chris Lattner | 8f08cb7 | 2007-08-25 06:57:03 +0000 | [diff] [blame] | 71 | // Read label attributes, if present. |
John McCall | 0b7e678 | 2011-03-24 11:26:52 +0000 | [diff] [blame] | 72 | ParsedAttributes attrs(AttrFactory); |
Douglas Gregor | 6a588dd | 2009-06-17 19:49:00 +0000 | [diff] [blame] | 73 | if (Tok.is(tok::kw___attribute)) { |
| 74 | attrTok = Tok; |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 75 | ParseGNUAttributes(attrs); |
Douglas Gregor | 6a588dd | 2009-06-17 19:49:00 +0000 | [diff] [blame] | 76 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 77 | |
Douglas Gregor | 6a588dd | 2009-06-17 19:49:00 +0000 | [diff] [blame] | 78 | if (Tok.is(tok::equal)) { |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 79 | if (!attrs.empty()) |
Douglas Gregor | 6a588dd | 2009-06-17 19:49:00 +0000 | [diff] [blame] | 80 | Diag(attrTok, diag::err_unexpected_namespace_attributes_alias); |
Sebastian Redl | d078e64 | 2010-08-27 23:12:46 +0000 | [diff] [blame] | 81 | if (InlineLoc.isValid()) |
| 82 | Diag(InlineLoc, diag::err_inline_namespace_alias) |
| 83 | << FixItHint::CreateRemoval(InlineLoc); |
Douglas Gregor | 6a588dd | 2009-06-17 19:49:00 +0000 | [diff] [blame] | 84 | |
Chris Lattner | 97144fc | 2009-04-02 04:16:50 +0000 | [diff] [blame] | 85 | return ParseNamespaceAlias(NamespaceLoc, IdentLoc, Ident, DeclEnd); |
Douglas Gregor | 6a588dd | 2009-06-17 19:49:00 +0000 | [diff] [blame] | 86 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 87 | |
Chris Lattner | 5144832 | 2009-03-29 14:02:43 +0000 | [diff] [blame] | 88 | if (Tok.isNot(tok::l_brace)) { |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 89 | Diag(Tok, Ident ? diag::err_expected_lbrace : |
Chris Lattner | 5144832 | 2009-03-29 14:02:43 +0000 | [diff] [blame] | 90 | diag::err_expected_ident_lbrace); |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 91 | return 0; |
Chris Lattner | 8f08cb7 | 2007-08-25 06:57:03 +0000 | [diff] [blame] | 92 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 93 | |
Chris Lattner | 5144832 | 2009-03-29 14:02:43 +0000 | [diff] [blame] | 94 | SourceLocation LBrace = ConsumeBrace(); |
| 95 | |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 96 | if (getCurScope()->isClassScope() || getCurScope()->isTemplateParamScope() || |
| 97 | getCurScope()->isInObjcMethodScope() || getCurScope()->getBlockParent() || |
| 98 | getCurScope()->getFnParent()) { |
Douglas Gregor | 95f1b15 | 2010-05-14 05:08:22 +0000 | [diff] [blame] | 99 | Diag(LBrace, diag::err_namespace_nonnamespace_scope); |
| 100 | SkipUntil(tok::r_brace, false); |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 101 | return 0; |
Douglas Gregor | 95f1b15 | 2010-05-14 05:08:22 +0000 | [diff] [blame] | 102 | } |
| 103 | |
Sebastian Redl | 88e64ca | 2010-08-31 00:36:45 +0000 | [diff] [blame] | 104 | // If we're still good, complain about inline namespaces in non-C++0x now. |
| 105 | if (!getLang().CPlusPlus0x && InlineLoc.isValid()) |
| 106 | Diag(InlineLoc, diag::ext_inline_namespace); |
| 107 | |
Chris Lattner | 5144832 | 2009-03-29 14:02:43 +0000 | [diff] [blame] | 108 | // Enter a scope for the namespace. |
| 109 | ParseScope NamespaceScope(this, Scope::DeclScope); |
| 110 | |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 111 | Decl *NamespcDecl = |
Abramo Bagnara | acba90f | 2011-03-08 12:38:20 +0000 | [diff] [blame] | 112 | Actions.ActOnStartNamespaceDef(getCurScope(), InlineLoc, NamespaceLoc, |
| 113 | IdentLoc, Ident, LBrace, attrs.getList()); |
Chris Lattner | 5144832 | 2009-03-29 14:02:43 +0000 | [diff] [blame] | 114 | |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 115 | PrettyDeclStackTraceEntry CrashInfo(Actions, NamespcDecl, NamespaceLoc, |
| 116 | "parsing namespace"); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 117 | |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 118 | while (Tok.isNot(tok::r_brace) && Tok.isNot(tok::eof)) { |
John McCall | 0b7e678 | 2011-03-24 11:26:52 +0000 | [diff] [blame] | 119 | ParsedAttributesWithRange attrs(AttrFactory); |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 120 | MaybeParseCXX0XAttributes(attrs); |
| 121 | MaybeParseMicrosoftAttributes(attrs); |
| 122 | ParseExternalDeclaration(attrs); |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 123 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 124 | |
Chris Lattner | 5144832 | 2009-03-29 14:02:43 +0000 | [diff] [blame] | 125 | // Leave the namespace scope. |
| 126 | NamespaceScope.Exit(); |
| 127 | |
Chris Lattner | 97144fc | 2009-04-02 04:16:50 +0000 | [diff] [blame] | 128 | SourceLocation RBraceLoc = MatchRHSPunctuation(tok::r_brace, LBrace); |
| 129 | Actions.ActOnFinishNamespaceDef(NamespcDecl, RBraceLoc); |
Chris Lattner | 5144832 | 2009-03-29 14:02:43 +0000 | [diff] [blame] | 130 | |
Chris Lattner | 97144fc | 2009-04-02 04:16:50 +0000 | [diff] [blame] | 131 | DeclEnd = RBraceLoc; |
Chris Lattner | 5144832 | 2009-03-29 14:02:43 +0000 | [diff] [blame] | 132 | return NamespcDecl; |
Chris Lattner | 8f08cb7 | 2007-08-25 06:57:03 +0000 | [diff] [blame] | 133 | } |
Chris Lattner | c6fdc34 | 2008-01-12 07:05:38 +0000 | [diff] [blame] | 134 | |
Anders Carlsson | f67606a | 2009-03-28 04:07:16 +0000 | [diff] [blame] | 135 | /// ParseNamespaceAlias - Parse the part after the '=' in a namespace |
| 136 | /// alias definition. |
| 137 | /// |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 138 | Decl *Parser::ParseNamespaceAlias(SourceLocation NamespaceLoc, |
John McCall | 0b7e678 | 2011-03-24 11:26:52 +0000 | [diff] [blame] | 139 | SourceLocation AliasLoc, |
| 140 | IdentifierInfo *Alias, |
| 141 | SourceLocation &DeclEnd) { |
Anders Carlsson | f67606a | 2009-03-28 04:07:16 +0000 | [diff] [blame] | 142 | assert(Tok.is(tok::equal) && "Not equal token"); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 143 | |
Anders Carlsson | f67606a | 2009-03-28 04:07:16 +0000 | [diff] [blame] | 144 | ConsumeToken(); // eat the '='. |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 145 | |
Douglas Gregor | 49f40bd | 2009-09-18 19:03:04 +0000 | [diff] [blame] | 146 | if (Tok.is(tok::code_completion)) { |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 147 | Actions.CodeCompleteNamespaceAliasDecl(getCurScope()); |
Douglas Gregor | dc84534 | 2010-05-25 05:58:43 +0000 | [diff] [blame] | 148 | ConsumeCodeCompletionToken(); |
Douglas Gregor | 49f40bd | 2009-09-18 19:03:04 +0000 | [diff] [blame] | 149 | } |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 150 | |
Anders Carlsson | f67606a | 2009-03-28 04:07:16 +0000 | [diff] [blame] | 151 | CXXScopeSpec SS; |
| 152 | // Parse (optional) nested-name-specifier. |
John McCall | b3d8748 | 2010-08-24 05:47:05 +0000 | [diff] [blame] | 153 | ParseOptionalCXXScopeSpecifier(SS, ParsedType(), false); |
Anders Carlsson | f67606a | 2009-03-28 04:07:16 +0000 | [diff] [blame] | 154 | |
| 155 | if (SS.isInvalid() || Tok.isNot(tok::identifier)) { |
| 156 | Diag(Tok, diag::err_expected_namespace_name); |
| 157 | // Skip to end of the definition and eat the ';'. |
| 158 | SkipUntil(tok::semi); |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 159 | return 0; |
Anders Carlsson | f67606a | 2009-03-28 04:07:16 +0000 | [diff] [blame] | 160 | } |
| 161 | |
| 162 | // Parse identifier. |
Anders Carlsson | 03bd5a1 | 2009-03-28 22:53:22 +0000 | [diff] [blame] | 163 | IdentifierInfo *Ident = Tok.getIdentifierInfo(); |
| 164 | SourceLocation IdentLoc = ConsumeToken(); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 165 | |
Anders Carlsson | f67606a | 2009-03-28 04:07:16 +0000 | [diff] [blame] | 166 | // Eat the ';'. |
Chris Lattner | 97144fc | 2009-04-02 04:16:50 +0000 | [diff] [blame] | 167 | DeclEnd = Tok.getLocation(); |
Chris Lattner | 6869d8e | 2009-06-14 00:07:48 +0000 | [diff] [blame] | 168 | ExpectAndConsume(tok::semi, diag::err_expected_semi_after_namespace_name, |
| 169 | "", tok::semi); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 170 | |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 171 | return Actions.ActOnNamespaceAliasDef(getCurScope(), NamespaceLoc, AliasLoc, Alias, |
Anders Carlsson | 03bd5a1 | 2009-03-28 22:53:22 +0000 | [diff] [blame] | 172 | SS, IdentLoc, Ident); |
Anders Carlsson | f67606a | 2009-03-28 04:07:16 +0000 | [diff] [blame] | 173 | } |
| 174 | |
Chris Lattner | c6fdc34 | 2008-01-12 07:05:38 +0000 | [diff] [blame] | 175 | /// ParseLinkage - We know that the current token is a string_literal |
| 176 | /// and just before that, that extern was seen. |
| 177 | /// |
| 178 | /// linkage-specification: [C++ 7.5p2: dcl.link] |
| 179 | /// 'extern' string-literal '{' declaration-seq[opt] '}' |
| 180 | /// 'extern' string-literal declaration |
| 181 | /// |
Chris Lattner | 7d64271 | 2010-11-09 20:15:55 +0000 | [diff] [blame] | 182 | Decl *Parser::ParseLinkage(ParsingDeclSpec &DS, unsigned Context) { |
Douglas Gregor | c19923d | 2008-11-21 16:10:08 +0000 | [diff] [blame] | 183 | assert(Tok.is(tok::string_literal) && "Not a string literal!"); |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 184 | llvm::SmallString<8> LangBuffer; |
Douglas Gregor | 453091c | 2010-03-16 22:30:13 +0000 | [diff] [blame] | 185 | bool Invalid = false; |
| 186 | llvm::StringRef Lang = PP.getSpelling(Tok, LangBuffer, &Invalid); |
| 187 | if (Invalid) |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 188 | return 0; |
Chris Lattner | c6fdc34 | 2008-01-12 07:05:38 +0000 | [diff] [blame] | 189 | |
| 190 | SourceLocation Loc = ConsumeStringToken(); |
Chris Lattner | c6fdc34 | 2008-01-12 07:05:38 +0000 | [diff] [blame] | 191 | |
Douglas Gregor | 074149e | 2009-01-05 19:45:36 +0000 | [diff] [blame] | 192 | ParseScope LinkageScope(this, Scope::DeclScope); |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 193 | Decl *LinkageSpec |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 194 | = Actions.ActOnStartLinkageSpecification(getCurScope(), |
Abramo Bagnara | a2026c9 | 2011-03-08 16:41:52 +0000 | [diff] [blame] | 195 | DS.getSourceRange().getBegin(), |
Benjamin Kramer | d566381 | 2010-05-03 13:08:54 +0000 | [diff] [blame] | 196 | Loc, Lang, |
Abramo Bagnara | a2026c9 | 2011-03-08 16:41:52 +0000 | [diff] [blame] | 197 | Tok.is(tok::l_brace) ? Tok.getLocation() |
Douglas Gregor | 074149e | 2009-01-05 19:45:36 +0000 | [diff] [blame] | 198 | : SourceLocation()); |
| 199 | |
John McCall | 0b7e678 | 2011-03-24 11:26:52 +0000 | [diff] [blame] | 200 | ParsedAttributesWithRange attrs(AttrFactory); |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 201 | MaybeParseCXX0XAttributes(attrs); |
| 202 | MaybeParseMicrosoftAttributes(attrs); |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 203 | |
Douglas Gregor | 074149e | 2009-01-05 19:45:36 +0000 | [diff] [blame] | 204 | if (Tok.isNot(tok::l_brace)) { |
Abramo Bagnara | f41e33c | 2011-05-01 16:25:54 +0000 | [diff] [blame] | 205 | // Reset the source range in DS, as the leading "extern" |
| 206 | // does not really belong to the inner declaration ... |
| 207 | DS.SetRangeStart(SourceLocation()); |
| 208 | DS.SetRangeEnd(SourceLocation()); |
| 209 | // ... but anyway remember that such an "extern" was seen. |
Abramo Bagnara | 35f9a19 | 2010-07-30 16:47:02 +0000 | [diff] [blame] | 210 | DS.setExternInLinkageSpec(true); |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 211 | ParseExternalDeclaration(attrs, &DS); |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 212 | return Actions.ActOnFinishLinkageSpecification(getCurScope(), LinkageSpec, |
Douglas Gregor | 074149e | 2009-01-05 19:45:36 +0000 | [diff] [blame] | 213 | SourceLocation()); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 214 | } |
Douglas Gregor | f44515a | 2008-12-16 22:23:02 +0000 | [diff] [blame] | 215 | |
Douglas Gregor | 63a0113 | 2010-02-07 08:38:28 +0000 | [diff] [blame] | 216 | DS.abort(); |
| 217 | |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 218 | ProhibitAttributes(attrs); |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 219 | |
Douglas Gregor | f44515a | 2008-12-16 22:23:02 +0000 | [diff] [blame] | 220 | SourceLocation LBrace = ConsumeBrace(); |
Douglas Gregor | f44515a | 2008-12-16 22:23:02 +0000 | [diff] [blame] | 221 | while (Tok.isNot(tok::r_brace) && Tok.isNot(tok::eof)) { |
John McCall | 0b7e678 | 2011-03-24 11:26:52 +0000 | [diff] [blame] | 222 | ParsedAttributesWithRange attrs(AttrFactory); |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 223 | MaybeParseCXX0XAttributes(attrs); |
| 224 | MaybeParseMicrosoftAttributes(attrs); |
| 225 | ParseExternalDeclaration(attrs); |
Chris Lattner | c6fdc34 | 2008-01-12 07:05:38 +0000 | [diff] [blame] | 226 | } |
| 227 | |
Douglas Gregor | f44515a | 2008-12-16 22:23:02 +0000 | [diff] [blame] | 228 | SourceLocation RBrace = MatchRHSPunctuation(tok::r_brace, LBrace); |
Chris Lattner | 7d64271 | 2010-11-09 20:15:55 +0000 | [diff] [blame] | 229 | return Actions.ActOnFinishLinkageSpecification(getCurScope(), LinkageSpec, |
| 230 | RBrace); |
Chris Lattner | c6fdc34 | 2008-01-12 07:05:38 +0000 | [diff] [blame] | 231 | } |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 232 | |
Douglas Gregor | f780abc | 2008-12-30 03:27:21 +0000 | [diff] [blame] | 233 | /// ParseUsingDirectiveOrDeclaration - Parse C++ using using-declaration or |
| 234 | /// using-directive. Assumes that current token is 'using'. |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 235 | Decl *Parser::ParseUsingDirectiveOrDeclaration(unsigned Context, |
John McCall | 78b8105 | 2010-11-10 02:40:36 +0000 | [diff] [blame] | 236 | const ParsedTemplateInfo &TemplateInfo, |
| 237 | SourceLocation &DeclEnd, |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 238 | ParsedAttributesWithRange &attrs) { |
Douglas Gregor | f780abc | 2008-12-30 03:27:21 +0000 | [diff] [blame] | 239 | assert(Tok.is(tok::kw_using) && "Not using token"); |
| 240 | |
| 241 | // Eat 'using'. |
| 242 | SourceLocation UsingLoc = ConsumeToken(); |
| 243 | |
Douglas Gregor | 49f40bd | 2009-09-18 19:03:04 +0000 | [diff] [blame] | 244 | if (Tok.is(tok::code_completion)) { |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 245 | Actions.CodeCompleteUsing(getCurScope()); |
Douglas Gregor | dc84534 | 2010-05-25 05:58:43 +0000 | [diff] [blame] | 246 | ConsumeCodeCompletionToken(); |
Douglas Gregor | 49f40bd | 2009-09-18 19:03:04 +0000 | [diff] [blame] | 247 | } |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 248 | |
John McCall | 78b8105 | 2010-11-10 02:40:36 +0000 | [diff] [blame] | 249 | // 'using namespace' means this is a using-directive. |
| 250 | if (Tok.is(tok::kw_namespace)) { |
| 251 | // Template parameters are always an error here. |
| 252 | if (TemplateInfo.Kind) { |
| 253 | SourceRange R = TemplateInfo.getSourceRange(); |
| 254 | Diag(UsingLoc, diag::err_templated_using_directive) |
| 255 | << R << FixItHint::CreateRemoval(R); |
| 256 | } |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 257 | |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 258 | return ParseUsingDirective(Context, UsingLoc, DeclEnd, attrs); |
John McCall | 78b8105 | 2010-11-10 02:40:36 +0000 | [diff] [blame] | 259 | } |
| 260 | |
Richard Smith | 162e1c1 | 2011-04-15 14:24:37 +0000 | [diff] [blame] | 261 | // Otherwise, it must be a using-declaration or an alias-declaration. |
John McCall | 78b8105 | 2010-11-10 02:40:36 +0000 | [diff] [blame] | 262 | |
| 263 | // Using declarations can't have attributes. |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 264 | ProhibitAttributes(attrs); |
Chris Lattner | 2f27477 | 2009-01-06 06:55:51 +0000 | [diff] [blame] | 265 | |
John McCall | 78b8105 | 2010-11-10 02:40:36 +0000 | [diff] [blame] | 266 | return ParseUsingDeclaration(Context, TemplateInfo, UsingLoc, DeclEnd); |
Douglas Gregor | f780abc | 2008-12-30 03:27:21 +0000 | [diff] [blame] | 267 | } |
| 268 | |
| 269 | /// ParseUsingDirective - Parse C++ using-directive, assumes |
| 270 | /// that current token is 'namespace' and 'using' was already parsed. |
| 271 | /// |
| 272 | /// using-directive: [C++ 7.3.p4: namespace.udir] |
| 273 | /// 'using' 'namespace' ::[opt] nested-name-specifier[opt] |
| 274 | /// namespace-name ; |
| 275 | /// [GNU] using-directive: |
| 276 | /// 'using' 'namespace' ::[opt] nested-name-specifier[opt] |
| 277 | /// namespace-name attributes[opt] ; |
| 278 | /// |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 279 | Decl *Parser::ParseUsingDirective(unsigned Context, |
John McCall | 78b8105 | 2010-11-10 02:40:36 +0000 | [diff] [blame] | 280 | SourceLocation UsingLoc, |
| 281 | SourceLocation &DeclEnd, |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 282 | ParsedAttributes &attrs) { |
Douglas Gregor | f780abc | 2008-12-30 03:27:21 +0000 | [diff] [blame] | 283 | assert(Tok.is(tok::kw_namespace) && "Not 'namespace' token"); |
| 284 | |
| 285 | // Eat 'namespace'. |
| 286 | SourceLocation NamespcLoc = ConsumeToken(); |
| 287 | |
Douglas Gregor | 49f40bd | 2009-09-18 19:03:04 +0000 | [diff] [blame] | 288 | if (Tok.is(tok::code_completion)) { |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 289 | Actions.CodeCompleteUsingDirective(getCurScope()); |
Douglas Gregor | dc84534 | 2010-05-25 05:58:43 +0000 | [diff] [blame] | 290 | ConsumeCodeCompletionToken(); |
Douglas Gregor | 49f40bd | 2009-09-18 19:03:04 +0000 | [diff] [blame] | 291 | } |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 292 | |
Douglas Gregor | f780abc | 2008-12-30 03:27:21 +0000 | [diff] [blame] | 293 | CXXScopeSpec SS; |
| 294 | // Parse (optional) nested-name-specifier. |
John McCall | b3d8748 | 2010-08-24 05:47:05 +0000 | [diff] [blame] | 295 | ParseOptionalCXXScopeSpecifier(SS, ParsedType(), false); |
Douglas Gregor | f780abc | 2008-12-30 03:27:21 +0000 | [diff] [blame] | 296 | |
Douglas Gregor | f780abc | 2008-12-30 03:27:21 +0000 | [diff] [blame] | 297 | IdentifierInfo *NamespcName = 0; |
| 298 | SourceLocation IdentLoc = SourceLocation(); |
| 299 | |
| 300 | // Parse namespace-name. |
Chris Lattner | 823c44e | 2009-01-06 07:27:21 +0000 | [diff] [blame] | 301 | if (SS.isInvalid() || Tok.isNot(tok::identifier)) { |
Douglas Gregor | f780abc | 2008-12-30 03:27:21 +0000 | [diff] [blame] | 302 | Diag(Tok, diag::err_expected_namespace_name); |
| 303 | // If there was invalid namespace name, skip to end of decl, and eat ';'. |
| 304 | SkipUntil(tok::semi); |
| 305 | // FIXME: Are there cases, when we would like to call ActOnUsingDirective? |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 306 | return 0; |
Douglas Gregor | f780abc | 2008-12-30 03:27:21 +0000 | [diff] [blame] | 307 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 308 | |
Chris Lattner | 823c44e | 2009-01-06 07:27:21 +0000 | [diff] [blame] | 309 | // Parse identifier. |
| 310 | NamespcName = Tok.getIdentifierInfo(); |
| 311 | IdentLoc = ConsumeToken(); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 312 | |
Chris Lattner | 823c44e | 2009-01-06 07:27:21 +0000 | [diff] [blame] | 313 | // Parse (optional) attributes (most likely GNU strong-using extension). |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 314 | bool GNUAttr = false; |
| 315 | if (Tok.is(tok::kw___attribute)) { |
| 316 | GNUAttr = true; |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 317 | ParseGNUAttributes(attrs); |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 318 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 319 | |
Chris Lattner | 823c44e | 2009-01-06 07:27:21 +0000 | [diff] [blame] | 320 | // Eat ';'. |
Chris Lattner | 97144fc | 2009-04-02 04:16:50 +0000 | [diff] [blame] | 321 | DeclEnd = Tok.getLocation(); |
Chris Lattner | 6869d8e | 2009-06-14 00:07:48 +0000 | [diff] [blame] | 322 | ExpectAndConsume(tok::semi, |
Douglas Gregor | 9ba23b4 | 2010-09-07 15:23:11 +0000 | [diff] [blame] | 323 | GNUAttr ? diag::err_expected_semi_after_attribute_list |
| 324 | : diag::err_expected_semi_after_namespace_name, |
| 325 | "", tok::semi); |
Douglas Gregor | f780abc | 2008-12-30 03:27:21 +0000 | [diff] [blame] | 326 | |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 327 | return Actions.ActOnUsingDirective(getCurScope(), UsingLoc, NamespcLoc, SS, |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 328 | IdentLoc, NamespcName, attrs.getList()); |
Douglas Gregor | f780abc | 2008-12-30 03:27:21 +0000 | [diff] [blame] | 329 | } |
| 330 | |
Richard Smith | 162e1c1 | 2011-04-15 14:24:37 +0000 | [diff] [blame] | 331 | /// ParseUsingDeclaration - Parse C++ using-declaration or alias-declaration. |
| 332 | /// Assumes that 'using' was already seen. |
Douglas Gregor | f780abc | 2008-12-30 03:27:21 +0000 | [diff] [blame] | 333 | /// |
| 334 | /// using-declaration: [C++ 7.3.p3: namespace.udecl] |
| 335 | /// 'using' 'typename'[opt] ::[opt] nested-name-specifier |
Douglas Gregor | 9cfbe48 | 2009-06-20 00:51:54 +0000 | [diff] [blame] | 336 | /// unqualified-id |
| 337 | /// 'using' :: unqualified-id |
Douglas Gregor | f780abc | 2008-12-30 03:27:21 +0000 | [diff] [blame] | 338 | /// |
Richard Smith | 162e1c1 | 2011-04-15 14:24:37 +0000 | [diff] [blame] | 339 | /// alias-declaration: C++0x [decl.typedef]p2 |
| 340 | /// 'using' identifier = type-id ; |
| 341 | /// |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 342 | Decl *Parser::ParseUsingDeclaration(unsigned Context, |
John McCall | 78b8105 | 2010-11-10 02:40:36 +0000 | [diff] [blame] | 343 | const ParsedTemplateInfo &TemplateInfo, |
| 344 | SourceLocation UsingLoc, |
| 345 | SourceLocation &DeclEnd, |
| 346 | AccessSpecifier AS) { |
Douglas Gregor | 9cfbe48 | 2009-06-20 00:51:54 +0000 | [diff] [blame] | 347 | CXXScopeSpec SS; |
John McCall | 7ba107a | 2009-11-18 02:36:19 +0000 | [diff] [blame] | 348 | SourceLocation TypenameLoc; |
Douglas Gregor | 9cfbe48 | 2009-06-20 00:51:54 +0000 | [diff] [blame] | 349 | bool IsTypeName; |
| 350 | |
| 351 | // Ignore optional 'typename'. |
Douglas Gregor | 12c118a | 2009-11-04 16:30:06 +0000 | [diff] [blame] | 352 | // FIXME: This is wrong; we should parse this as a typename-specifier. |
Douglas Gregor | 9cfbe48 | 2009-06-20 00:51:54 +0000 | [diff] [blame] | 353 | if (Tok.is(tok::kw_typename)) { |
John McCall | 7ba107a | 2009-11-18 02:36:19 +0000 | [diff] [blame] | 354 | TypenameLoc = Tok.getLocation(); |
Douglas Gregor | 9cfbe48 | 2009-06-20 00:51:54 +0000 | [diff] [blame] | 355 | ConsumeToken(); |
| 356 | IsTypeName = true; |
| 357 | } |
| 358 | else |
| 359 | IsTypeName = false; |
| 360 | |
| 361 | // Parse nested-name-specifier. |
John McCall | b3d8748 | 2010-08-24 05:47:05 +0000 | [diff] [blame] | 362 | ParseOptionalCXXScopeSpecifier(SS, ParsedType(), false); |
Douglas Gregor | 9cfbe48 | 2009-06-20 00:51:54 +0000 | [diff] [blame] | 363 | |
Douglas Gregor | 9cfbe48 | 2009-06-20 00:51:54 +0000 | [diff] [blame] | 364 | // Check nested-name specifier. |
| 365 | if (SS.isInvalid()) { |
| 366 | SkipUntil(tok::semi); |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 367 | return 0; |
Douglas Gregor | 9cfbe48 | 2009-06-20 00:51:54 +0000 | [diff] [blame] | 368 | } |
Douglas Gregor | 12c118a | 2009-11-04 16:30:06 +0000 | [diff] [blame] | 369 | |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 370 | // Parse the unqualified-id. We allow parsing of both constructor and |
Douglas Gregor | 12c118a | 2009-11-04 16:30:06 +0000 | [diff] [blame] | 371 | // destructor names and allow the action module to diagnose any semantic |
| 372 | // errors. |
| 373 | UnqualifiedId Name; |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 374 | if (ParseUnqualifiedId(SS, |
Douglas Gregor | 12c118a | 2009-11-04 16:30:06 +0000 | [diff] [blame] | 375 | /*EnteringContext=*/false, |
| 376 | /*AllowDestructorName=*/true, |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 377 | /*AllowConstructorName=*/true, |
John McCall | b3d8748 | 2010-08-24 05:47:05 +0000 | [diff] [blame] | 378 | ParsedType(), |
Douglas Gregor | 12c118a | 2009-11-04 16:30:06 +0000 | [diff] [blame] | 379 | Name)) { |
Douglas Gregor | 9cfbe48 | 2009-06-20 00:51:54 +0000 | [diff] [blame] | 380 | SkipUntil(tok::semi); |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 381 | return 0; |
Douglas Gregor | 9cfbe48 | 2009-06-20 00:51:54 +0000 | [diff] [blame] | 382 | } |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 383 | |
John McCall | 0b7e678 | 2011-03-24 11:26:52 +0000 | [diff] [blame] | 384 | ParsedAttributes attrs(AttrFactory); |
Richard Smith | 162e1c1 | 2011-04-15 14:24:37 +0000 | [diff] [blame] | 385 | |
| 386 | // Maybe this is an alias-declaration. |
| 387 | bool IsAliasDecl = Tok.is(tok::equal); |
| 388 | TypeResult TypeAlias; |
| 389 | if (IsAliasDecl) { |
Richard Smith | 3e4c6c4 | 2011-05-05 21:57:07 +0000 | [diff] [blame] | 390 | // TODO: Attribute support. C++0x attributes may appear before the equals. |
| 391 | // Where can GNU attributes appear? |
Richard Smith | 162e1c1 | 2011-04-15 14:24:37 +0000 | [diff] [blame] | 392 | ConsumeToken(); |
| 393 | |
| 394 | if (!getLang().CPlusPlus0x) |
| 395 | Diag(Tok.getLocation(), diag::ext_alias_declaration); |
| 396 | |
Richard Smith | 3e4c6c4 | 2011-05-05 21:57:07 +0000 | [diff] [blame] | 397 | // Type alias templates cannot be specialized. |
| 398 | int SpecKind = -1; |
Richard Smith | 536e9c1 | 2011-05-05 22:36:10 +0000 | [diff] [blame] | 399 | if (TemplateInfo.Kind == ParsedTemplateInfo::Template && |
| 400 | Name.getKind() == UnqualifiedId::IK_TemplateId) |
Richard Smith | 3e4c6c4 | 2011-05-05 21:57:07 +0000 | [diff] [blame] | 401 | SpecKind = 0; |
| 402 | if (TemplateInfo.Kind == ParsedTemplateInfo::ExplicitSpecialization) |
| 403 | SpecKind = 1; |
| 404 | if (TemplateInfo.Kind == ParsedTemplateInfo::ExplicitInstantiation) |
| 405 | SpecKind = 2; |
| 406 | if (SpecKind != -1) { |
| 407 | SourceRange Range; |
| 408 | if (SpecKind == 0) |
| 409 | Range = SourceRange(Name.TemplateId->LAngleLoc, |
| 410 | Name.TemplateId->RAngleLoc); |
| 411 | else |
| 412 | Range = TemplateInfo.getSourceRange(); |
| 413 | Diag(Range.getBegin(), diag::err_alias_declaration_specialization) |
| 414 | << SpecKind << Range; |
| 415 | SkipUntil(tok::semi); |
| 416 | return 0; |
| 417 | } |
| 418 | |
Richard Smith | 162e1c1 | 2011-04-15 14:24:37 +0000 | [diff] [blame] | 419 | // Name must be an identifier. |
| 420 | if (Name.getKind() != UnqualifiedId::IK_Identifier) { |
| 421 | Diag(Name.StartLocation, diag::err_alias_declaration_not_identifier); |
| 422 | // No removal fixit: can't recover from this. |
| 423 | SkipUntil(tok::semi); |
| 424 | return 0; |
| 425 | } else if (IsTypeName) |
| 426 | Diag(TypenameLoc, diag::err_alias_declaration_not_identifier) |
| 427 | << FixItHint::CreateRemoval(SourceRange(TypenameLoc, |
| 428 | SS.isNotEmpty() ? SS.getEndLoc() : TypenameLoc)); |
| 429 | else if (SS.isNotEmpty()) |
| 430 | Diag(SS.getBeginLoc(), diag::err_alias_declaration_not_identifier) |
| 431 | << FixItHint::CreateRemoval(SS.getRange()); |
| 432 | |
Richard Smith | 3e4c6c4 | 2011-05-05 21:57:07 +0000 | [diff] [blame] | 433 | TypeAlias = ParseTypeName(0, TemplateInfo.Kind ? |
| 434 | Declarator::AliasTemplateContext : |
| 435 | Declarator::AliasDeclContext); |
Richard Smith | 162e1c1 | 2011-04-15 14:24:37 +0000 | [diff] [blame] | 436 | } else |
| 437 | // Parse (optional) attributes (most likely GNU strong-using extension). |
| 438 | MaybeParseGNUAttributes(attrs); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 439 | |
Douglas Gregor | 9cfbe48 | 2009-06-20 00:51:54 +0000 | [diff] [blame] | 440 | // Eat ';'. |
| 441 | DeclEnd = Tok.getLocation(); |
| 442 | ExpectAndConsume(tok::semi, diag::err_expected_semi_after, |
Richard Smith | 162e1c1 | 2011-04-15 14:24:37 +0000 | [diff] [blame] | 443 | !attrs.empty() ? "attributes list" : |
| 444 | IsAliasDecl ? "alias declaration" : "using declaration", |
Douglas Gregor | 12c118a | 2009-11-04 16:30:06 +0000 | [diff] [blame] | 445 | tok::semi); |
Douglas Gregor | 9cfbe48 | 2009-06-20 00:51:54 +0000 | [diff] [blame] | 446 | |
John McCall | 78b8105 | 2010-11-10 02:40:36 +0000 | [diff] [blame] | 447 | // Diagnose an attempt to declare a templated using-declaration. |
Richard Smith | 3e4c6c4 | 2011-05-05 21:57:07 +0000 | [diff] [blame] | 448 | // In C++0x, alias-declarations can be templates: |
Richard Smith | 162e1c1 | 2011-04-15 14:24:37 +0000 | [diff] [blame] | 449 | // template <...> using id = type; |
Richard Smith | 3e4c6c4 | 2011-05-05 21:57:07 +0000 | [diff] [blame] | 450 | if (TemplateInfo.Kind && !IsAliasDecl) { |
John McCall | 78b8105 | 2010-11-10 02:40:36 +0000 | [diff] [blame] | 451 | SourceRange R = TemplateInfo.getSourceRange(); |
| 452 | Diag(UsingLoc, diag::err_templated_using_declaration) |
| 453 | << R << FixItHint::CreateRemoval(R); |
| 454 | |
| 455 | // Unfortunately, we have to bail out instead of recovering by |
| 456 | // ignoring the parameters, just in case the nested name specifier |
| 457 | // depends on the parameters. |
| 458 | return 0; |
| 459 | } |
| 460 | |
Richard Smith | 3e4c6c4 | 2011-05-05 21:57:07 +0000 | [diff] [blame] | 461 | if (IsAliasDecl) { |
| 462 | TemplateParameterLists *TemplateParams = TemplateInfo.TemplateParams; |
| 463 | MultiTemplateParamsArg TemplateParamsArg(Actions, |
| 464 | TemplateParams ? TemplateParams->data() : 0, |
| 465 | TemplateParams ? TemplateParams->size() : 0); |
| 466 | return Actions.ActOnAliasDeclaration(getCurScope(), AS, TemplateParamsArg, |
| 467 | UsingLoc, Name, TypeAlias); |
| 468 | } |
Richard Smith | 162e1c1 | 2011-04-15 14:24:37 +0000 | [diff] [blame] | 469 | |
Ted Kremenek | 8113ecf | 2010-11-10 05:59:39 +0000 | [diff] [blame] | 470 | return Actions.ActOnUsingDeclaration(getCurScope(), AS, true, UsingLoc, SS, |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 471 | Name, attrs.getList(), |
| 472 | IsTypeName, TypenameLoc); |
Douglas Gregor | f780abc | 2008-12-30 03:27:21 +0000 | [diff] [blame] | 473 | } |
| 474 | |
Peter Collingbourne | c6eb44b | 2011-04-15 00:35:57 +0000 | [diff] [blame] | 475 | /// ParseStaticAssertDeclaration - Parse C++0x or C1X static_assert-declaration. |
Anders Carlsson | 511d7ab | 2009-03-11 16:27:10 +0000 | [diff] [blame] | 476 | /// |
Peter Collingbourne | c6eb44b | 2011-04-15 00:35:57 +0000 | [diff] [blame] | 477 | /// [C++0x] static_assert-declaration: |
| 478 | /// static_assert ( constant-expression , string-literal ) ; |
| 479 | /// |
| 480 | /// [C1X] static_assert-declaration: |
| 481 | /// _Static_assert ( constant-expression , string-literal ) ; |
Anders Carlsson | 511d7ab | 2009-03-11 16:27:10 +0000 | [diff] [blame] | 482 | /// |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 483 | Decl *Parser::ParseStaticAssertDeclaration(SourceLocation &DeclEnd){ |
Peter Collingbourne | c6eb44b | 2011-04-15 00:35:57 +0000 | [diff] [blame] | 484 | assert((Tok.is(tok::kw_static_assert) || Tok.is(tok::kw__Static_assert)) && |
| 485 | "Not a static_assert declaration"); |
| 486 | |
| 487 | if (Tok.is(tok::kw__Static_assert) && !getLang().C1X) |
| 488 | Diag(Tok, diag::ext_c1x_static_assert); |
| 489 | |
Anders Carlsson | 511d7ab | 2009-03-11 16:27:10 +0000 | [diff] [blame] | 490 | SourceLocation StaticAssertLoc = ConsumeToken(); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 491 | |
Anders Carlsson | 511d7ab | 2009-03-11 16:27:10 +0000 | [diff] [blame] | 492 | if (Tok.isNot(tok::l_paren)) { |
| 493 | Diag(Tok, diag::err_expected_lparen); |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 494 | return 0; |
Anders Carlsson | 511d7ab | 2009-03-11 16:27:10 +0000 | [diff] [blame] | 495 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 496 | |
Anders Carlsson | 511d7ab | 2009-03-11 16:27:10 +0000 | [diff] [blame] | 497 | SourceLocation LParenLoc = ConsumeParen(); |
Douglas Gregor | e0762c9 | 2009-06-19 23:52:42 +0000 | [diff] [blame] | 498 | |
John McCall | 60d7b3a | 2010-08-24 06:29:42 +0000 | [diff] [blame] | 499 | ExprResult AssertExpr(ParseConstantExpression()); |
Anders Carlsson | 511d7ab | 2009-03-11 16:27:10 +0000 | [diff] [blame] | 500 | if (AssertExpr.isInvalid()) { |
| 501 | SkipUntil(tok::semi); |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 502 | return 0; |
Anders Carlsson | 511d7ab | 2009-03-11 16:27:10 +0000 | [diff] [blame] | 503 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 504 | |
Anders Carlsson | ad5f960 | 2009-03-13 23:29:20 +0000 | [diff] [blame] | 505 | if (ExpectAndConsume(tok::comma, diag::err_expected_comma, "", tok::semi)) |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 506 | return 0; |
Anders Carlsson | ad5f960 | 2009-03-13 23:29:20 +0000 | [diff] [blame] | 507 | |
Anders Carlsson | 511d7ab | 2009-03-11 16:27:10 +0000 | [diff] [blame] | 508 | if (Tok.isNot(tok::string_literal)) { |
| 509 | Diag(Tok, diag::err_expected_string_literal); |
| 510 | SkipUntil(tok::semi); |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 511 | return 0; |
Anders Carlsson | 511d7ab | 2009-03-11 16:27:10 +0000 | [diff] [blame] | 512 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 513 | |
John McCall | 60d7b3a | 2010-08-24 06:29:42 +0000 | [diff] [blame] | 514 | ExprResult AssertMessage(ParseStringLiteralExpression()); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 515 | if (AssertMessage.isInvalid()) |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 516 | return 0; |
Anders Carlsson | 511d7ab | 2009-03-11 16:27:10 +0000 | [diff] [blame] | 517 | |
Abramo Bagnara | a2026c9 | 2011-03-08 16:41:52 +0000 | [diff] [blame] | 518 | SourceLocation RParenLoc = MatchRHSPunctuation(tok::r_paren, LParenLoc); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 519 | |
Chris Lattner | 97144fc | 2009-04-02 04:16:50 +0000 | [diff] [blame] | 520 | DeclEnd = Tok.getLocation(); |
Douglas Gregor | 9ba23b4 | 2010-09-07 15:23:11 +0000 | [diff] [blame] | 521 | ExpectAndConsumeSemi(diag::err_expected_semi_after_static_assert); |
Anders Carlsson | 511d7ab | 2009-03-11 16:27:10 +0000 | [diff] [blame] | 522 | |
John McCall | 9ae2f07 | 2010-08-23 23:25:46 +0000 | [diff] [blame] | 523 | return Actions.ActOnStaticAssertDeclaration(StaticAssertLoc, |
| 524 | AssertExpr.take(), |
Abramo Bagnara | a2026c9 | 2011-03-08 16:41:52 +0000 | [diff] [blame] | 525 | AssertMessage.take(), |
| 526 | RParenLoc); |
Anders Carlsson | 511d7ab | 2009-03-11 16:27:10 +0000 | [diff] [blame] | 527 | } |
| 528 | |
Anders Carlsson | 6fd634f | 2009-06-24 17:47:40 +0000 | [diff] [blame] | 529 | /// ParseDecltypeSpecifier - Parse a C++0x decltype specifier. |
| 530 | /// |
| 531 | /// 'decltype' ( expression ) |
| 532 | /// |
| 533 | void Parser::ParseDecltypeSpecifier(DeclSpec &DS) { |
| 534 | assert(Tok.is(tok::kw_decltype) && "Not a decltype specifier"); |
| 535 | |
| 536 | SourceLocation StartLoc = ConsumeToken(); |
| 537 | SourceLocation LParenLoc = Tok.getLocation(); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 538 | |
| 539 | if (ExpectAndConsume(tok::l_paren, diag::err_expected_lparen_after, |
Anders Carlsson | 6fd634f | 2009-06-24 17:47:40 +0000 | [diff] [blame] | 540 | "decltype")) { |
| 541 | SkipUntil(tok::r_paren); |
| 542 | return; |
| 543 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 544 | |
Anders Carlsson | 6fd634f | 2009-06-24 17:47:40 +0000 | [diff] [blame] | 545 | // Parse the expression |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 546 | |
Anders Carlsson | 6fd634f | 2009-06-24 17:47:40 +0000 | [diff] [blame] | 547 | // C++0x [dcl.type.simple]p4: |
| 548 | // The operand of the decltype specifier is an unevaluated operand. |
| 549 | EnterExpressionEvaluationContext Unevaluated(Actions, |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 550 | Sema::Unevaluated); |
John McCall | 60d7b3a | 2010-08-24 06:29:42 +0000 | [diff] [blame] | 551 | ExprResult Result = ParseExpression(); |
Anders Carlsson | 6fd634f | 2009-06-24 17:47:40 +0000 | [diff] [blame] | 552 | if (Result.isInvalid()) { |
| 553 | SkipUntil(tok::r_paren); |
| 554 | return; |
| 555 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 556 | |
Anders Carlsson | 6fd634f | 2009-06-24 17:47:40 +0000 | [diff] [blame] | 557 | // Match the ')' |
| 558 | SourceLocation RParenLoc; |
| 559 | if (Tok.is(tok::r_paren)) |
| 560 | RParenLoc = ConsumeParen(); |
| 561 | else |
| 562 | MatchRHSPunctuation(tok::r_paren, LParenLoc); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 563 | |
Anders Carlsson | 6fd634f | 2009-06-24 17:47:40 +0000 | [diff] [blame] | 564 | if (RParenLoc.isInvalid()) |
| 565 | return; |
| 566 | |
| 567 | const char *PrevSpec = 0; |
John McCall | fec5401 | 2009-08-03 20:12:06 +0000 | [diff] [blame] | 568 | unsigned DiagID; |
Anders Carlsson | 6fd634f | 2009-06-24 17:47:40 +0000 | [diff] [blame] | 569 | // Check for duplicate type specifiers (e.g. "int decltype(a)"). |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 570 | if (DS.SetTypeSpecType(DeclSpec::TST_decltype, StartLoc, PrevSpec, |
John McCall | fec5401 | 2009-08-03 20:12:06 +0000 | [diff] [blame] | 571 | DiagID, Result.release())) |
| 572 | Diag(StartLoc, DiagID) << PrevSpec; |
Anders Carlsson | 6fd634f | 2009-06-24 17:47:40 +0000 | [diff] [blame] | 573 | } |
| 574 | |
Douglas Gregor | 42a552f | 2008-11-05 20:51:48 +0000 | [diff] [blame] | 575 | /// ParseClassName - Parse a C++ class-name, which names a class. Note |
| 576 | /// that we only check that the result names a type; semantic analysis |
| 577 | /// will need to verify that the type names a class. The result is |
Douglas Gregor | 7f43d67 | 2009-02-25 23:52:28 +0000 | [diff] [blame] | 578 | /// either a type or NULL, depending on whether a type name was |
Douglas Gregor | 42a552f | 2008-11-05 20:51:48 +0000 | [diff] [blame] | 579 | /// found. |
| 580 | /// |
| 581 | /// class-name: [C++ 9.1] |
| 582 | /// identifier |
Douglas Gregor | 7f43d67 | 2009-02-25 23:52:28 +0000 | [diff] [blame] | 583 | /// simple-template-id |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 584 | /// |
Douglas Gregor | 31a19b6 | 2009-04-01 21:51:26 +0000 | [diff] [blame] | 585 | Parser::TypeResult Parser::ParseClassName(SourceLocation &EndLocation, |
Douglas Gregor | 059101f | 2011-03-02 00:47:37 +0000 | [diff] [blame] | 586 | CXXScopeSpec &SS) { |
Douglas Gregor | 7f43d67 | 2009-02-25 23:52:28 +0000 | [diff] [blame] | 587 | // Check whether we have a template-id that names a type. |
| 588 | if (Tok.is(tok::annot_template_id)) { |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 589 | TemplateIdAnnotation *TemplateId |
Douglas Gregor | 7f43d67 | 2009-02-25 23:52:28 +0000 | [diff] [blame] | 590 | = static_cast<TemplateIdAnnotation *>(Tok.getAnnotationValue()); |
Douglas Gregor | d9b600c | 2010-01-12 17:52:59 +0000 | [diff] [blame] | 591 | if (TemplateId->Kind == TNK_Type_template || |
| 592 | TemplateId->Kind == TNK_Dependent_template_name) { |
Douglas Gregor | 059101f | 2011-03-02 00:47:37 +0000 | [diff] [blame] | 593 | AnnotateTemplateIdTokenAsType(); |
Douglas Gregor | 7f43d67 | 2009-02-25 23:52:28 +0000 | [diff] [blame] | 594 | |
| 595 | assert(Tok.is(tok::annot_typename) && "template-id -> type failed"); |
John McCall | b3d8748 | 2010-08-24 05:47:05 +0000 | [diff] [blame] | 596 | ParsedType Type = getTypeAnnotation(Tok); |
Douglas Gregor | 7f43d67 | 2009-02-25 23:52:28 +0000 | [diff] [blame] | 597 | EndLocation = Tok.getAnnotationEndLoc(); |
| 598 | ConsumeToken(); |
Douglas Gregor | 31a19b6 | 2009-04-01 21:51:26 +0000 | [diff] [blame] | 599 | |
| 600 | if (Type) |
| 601 | return Type; |
| 602 | return true; |
Douglas Gregor | 7f43d67 | 2009-02-25 23:52:28 +0000 | [diff] [blame] | 603 | } |
| 604 | |
| 605 | // Fall through to produce an error below. |
| 606 | } |
| 607 | |
Douglas Gregor | 42a552f | 2008-11-05 20:51:48 +0000 | [diff] [blame] | 608 | if (Tok.isNot(tok::identifier)) { |
Chris Lattner | 1ab3b96 | 2008-11-18 07:48:38 +0000 | [diff] [blame] | 609 | Diag(Tok, diag::err_expected_class_name); |
Douglas Gregor | 31a19b6 | 2009-04-01 21:51:26 +0000 | [diff] [blame] | 610 | return true; |
Douglas Gregor | 42a552f | 2008-11-05 20:51:48 +0000 | [diff] [blame] | 611 | } |
| 612 | |
Douglas Gregor | 84d0a19 | 2010-01-12 21:28:44 +0000 | [diff] [blame] | 613 | IdentifierInfo *Id = Tok.getIdentifierInfo(); |
| 614 | SourceLocation IdLoc = ConsumeToken(); |
| 615 | |
| 616 | if (Tok.is(tok::less)) { |
| 617 | // It looks the user intended to write a template-id here, but the |
| 618 | // template-name was wrong. Try to fix that. |
| 619 | TemplateNameKind TNK = TNK_Type_template; |
| 620 | TemplateTy Template; |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 621 | if (!Actions.DiagnoseUnknownTemplateName(*Id, IdLoc, getCurScope(), |
Douglas Gregor | 059101f | 2011-03-02 00:47:37 +0000 | [diff] [blame] | 622 | &SS, Template, TNK)) { |
Douglas Gregor | 84d0a19 | 2010-01-12 21:28:44 +0000 | [diff] [blame] | 623 | Diag(IdLoc, diag::err_unknown_template_name) |
| 624 | << Id; |
| 625 | } |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 626 | |
Douglas Gregor | 84d0a19 | 2010-01-12 21:28:44 +0000 | [diff] [blame] | 627 | if (!Template) |
| 628 | return true; |
| 629 | |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 630 | // Form the template name |
Douglas Gregor | 84d0a19 | 2010-01-12 21:28:44 +0000 | [diff] [blame] | 631 | UnqualifiedId TemplateName; |
| 632 | TemplateName.setIdentifier(Id, IdLoc); |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 633 | |
Douglas Gregor | 84d0a19 | 2010-01-12 21:28:44 +0000 | [diff] [blame] | 634 | // Parse the full template-id, then turn it into a type. |
| 635 | if (AnnotateTemplateIdToken(Template, TNK, SS, TemplateName, |
| 636 | SourceLocation(), true)) |
| 637 | return true; |
| 638 | if (TNK == TNK_Dependent_template_name) |
Douglas Gregor | 059101f | 2011-03-02 00:47:37 +0000 | [diff] [blame] | 639 | AnnotateTemplateIdTokenAsType(); |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 640 | |
Douglas Gregor | 84d0a19 | 2010-01-12 21:28:44 +0000 | [diff] [blame] | 641 | // If we didn't end up with a typename token, there's nothing more we |
| 642 | // can do. |
| 643 | if (Tok.isNot(tok::annot_typename)) |
| 644 | return true; |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 645 | |
Douglas Gregor | 84d0a19 | 2010-01-12 21:28:44 +0000 | [diff] [blame] | 646 | // Retrieve the type from the annotation token, consume that token, and |
| 647 | // return. |
| 648 | EndLocation = Tok.getAnnotationEndLoc(); |
John McCall | b3d8748 | 2010-08-24 05:47:05 +0000 | [diff] [blame] | 649 | ParsedType Type = getTypeAnnotation(Tok); |
Douglas Gregor | 84d0a19 | 2010-01-12 21:28:44 +0000 | [diff] [blame] | 650 | ConsumeToken(); |
| 651 | return Type; |
| 652 | } |
| 653 | |
Douglas Gregor | 42a552f | 2008-11-05 20:51:48 +0000 | [diff] [blame] | 654 | // We have an identifier; check whether it is actually a type. |
Douglas Gregor | 059101f | 2011-03-02 00:47:37 +0000 | [diff] [blame] | 655 | ParsedType Type = Actions.getTypeName(*Id, IdLoc, getCurScope(), &SS, true, |
Douglas Gregor | 9e87687 | 2011-03-01 18:12:44 +0000 | [diff] [blame] | 656 | false, ParsedType(), |
| 657 | /*NonTrivialTypeSourceInfo=*/true); |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 658 | if (!Type) { |
Douglas Gregor | 124b878 | 2010-02-16 19:09:40 +0000 | [diff] [blame] | 659 | Diag(IdLoc, diag::err_expected_class_name); |
Douglas Gregor | 31a19b6 | 2009-04-01 21:51:26 +0000 | [diff] [blame] | 660 | return true; |
Douglas Gregor | 42a552f | 2008-11-05 20:51:48 +0000 | [diff] [blame] | 661 | } |
| 662 | |
| 663 | // Consume the identifier. |
Douglas Gregor | 84d0a19 | 2010-01-12 21:28:44 +0000 | [diff] [blame] | 664 | EndLocation = IdLoc; |
Nick Lewycky | 5606220 | 2010-07-26 16:56:01 +0000 | [diff] [blame] | 665 | |
| 666 | // Fake up a Declarator to use with ActOnTypeName. |
John McCall | 0b7e678 | 2011-03-24 11:26:52 +0000 | [diff] [blame] | 667 | DeclSpec DS(AttrFactory); |
Nick Lewycky | 5606220 | 2010-07-26 16:56:01 +0000 | [diff] [blame] | 668 | DS.SetRangeStart(IdLoc); |
| 669 | DS.SetRangeEnd(EndLocation); |
Douglas Gregor | 059101f | 2011-03-02 00:47:37 +0000 | [diff] [blame] | 670 | DS.getTypeSpecScope() = SS; |
Nick Lewycky | 5606220 | 2010-07-26 16:56:01 +0000 | [diff] [blame] | 671 | |
| 672 | const char *PrevSpec = 0; |
| 673 | unsigned DiagID; |
| 674 | DS.SetTypeSpecType(TST_typename, IdLoc, PrevSpec, DiagID, Type); |
| 675 | |
| 676 | Declarator DeclaratorInfo(DS, Declarator::TypeNameContext); |
| 677 | return Actions.ActOnTypeName(getCurScope(), DeclaratorInfo); |
Douglas Gregor | 42a552f | 2008-11-05 20:51:48 +0000 | [diff] [blame] | 678 | } |
| 679 | |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 680 | /// ParseClassSpecifier - Parse a C++ class-specifier [C++ class] or |
| 681 | /// elaborated-type-specifier [C++ dcl.type.elab]; we can't tell which |
| 682 | /// until we reach the start of a definition or see a token that |
Sebastian Redl | d9bafa7 | 2010-02-03 21:21:43 +0000 | [diff] [blame] | 683 | /// cannot start a definition. If SuppressDeclarations is true, we do know. |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 684 | /// |
| 685 | /// class-specifier: [C++ class] |
| 686 | /// class-head '{' member-specification[opt] '}' |
| 687 | /// class-head '{' member-specification[opt] '}' attributes[opt] |
| 688 | /// class-head: |
| 689 | /// class-key identifier[opt] base-clause[opt] |
| 690 | /// class-key nested-name-specifier identifier base-clause[opt] |
| 691 | /// class-key nested-name-specifier[opt] simple-template-id |
| 692 | /// base-clause[opt] |
| 693 | /// [GNU] class-key attributes[opt] identifier[opt] base-clause[opt] |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 694 | /// [GNU] class-key attributes[opt] nested-name-specifier |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 695 | /// identifier base-clause[opt] |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 696 | /// [GNU] class-key attributes[opt] nested-name-specifier[opt] |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 697 | /// simple-template-id base-clause[opt] |
| 698 | /// class-key: |
| 699 | /// 'class' |
| 700 | /// 'struct' |
| 701 | /// 'union' |
| 702 | /// |
| 703 | /// elaborated-type-specifier: [C++ dcl.type.elab] |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 704 | /// class-key ::[opt] nested-name-specifier[opt] identifier |
| 705 | /// class-key ::[opt] nested-name-specifier[opt] 'template'[opt] |
| 706 | /// simple-template-id |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 707 | /// |
| 708 | /// Note that the C++ class-specifier and elaborated-type-specifier, |
| 709 | /// together, subsume the C99 struct-or-union-specifier: |
| 710 | /// |
| 711 | /// struct-or-union-specifier: [C99 6.7.2.1] |
| 712 | /// struct-or-union identifier[opt] '{' struct-contents '}' |
| 713 | /// struct-or-union identifier |
| 714 | /// [GNU] struct-or-union attributes[opt] identifier[opt] '{' struct-contents |
| 715 | /// '}' attributes[opt] |
| 716 | /// [GNU] struct-or-union attributes[opt] identifier |
| 717 | /// struct-or-union: |
| 718 | /// 'struct' |
| 719 | /// 'union' |
Chris Lattner | 4c97d76 | 2009-04-12 21:49:30 +0000 | [diff] [blame] | 720 | void Parser::ParseClassSpecifier(tok::TokenKind TagTokKind, |
| 721 | SourceLocation StartLoc, DeclSpec &DS, |
Douglas Gregor | 4d9a16f | 2009-05-12 23:25:50 +0000 | [diff] [blame] | 722 | const ParsedTemplateInfo &TemplateInfo, |
Sebastian Redl | d9bafa7 | 2010-02-03 21:21:43 +0000 | [diff] [blame] | 723 | AccessSpecifier AS, bool SuppressDeclarations){ |
Chris Lattner | 4c97d76 | 2009-04-12 21:49:30 +0000 | [diff] [blame] | 724 | DeclSpec::TST TagType; |
| 725 | if (TagTokKind == tok::kw_struct) |
| 726 | TagType = DeclSpec::TST_struct; |
| 727 | else if (TagTokKind == tok::kw_class) |
| 728 | TagType = DeclSpec::TST_class; |
| 729 | else { |
| 730 | assert(TagTokKind == tok::kw_union && "Not a class specifier"); |
| 731 | TagType = DeclSpec::TST_union; |
| 732 | } |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 733 | |
Douglas Gregor | 374929f | 2009-09-18 15:37:17 +0000 | [diff] [blame] | 734 | if (Tok.is(tok::code_completion)) { |
| 735 | // Code completion for a struct, class, or union name. |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 736 | Actions.CodeCompleteTag(getCurScope(), TagType); |
Douglas Gregor | dc84534 | 2010-05-25 05:58:43 +0000 | [diff] [blame] | 737 | ConsumeCodeCompletionToken(); |
Douglas Gregor | 374929f | 2009-09-18 15:37:17 +0000 | [diff] [blame] | 738 | } |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 739 | |
Chandler Carruth | 926c4b4 | 2010-06-28 08:39:25 +0000 | [diff] [blame] | 740 | // C++03 [temp.explicit] 14.7.2/8: |
| 741 | // The usual access checking rules do not apply to names used to specify |
| 742 | // explicit instantiations. |
| 743 | // |
| 744 | // As an extension we do not perform access checking on the names used to |
| 745 | // specify explicit specializations either. This is important to allow |
| 746 | // specializing traits classes for private types. |
| 747 | bool SuppressingAccessChecks = false; |
| 748 | if (TemplateInfo.Kind == ParsedTemplateInfo::ExplicitInstantiation || |
| 749 | TemplateInfo.Kind == ParsedTemplateInfo::ExplicitSpecialization) { |
| 750 | Actions.ActOnStartSuppressingAccessChecks(); |
| 751 | SuppressingAccessChecks = true; |
| 752 | } |
| 753 | |
John McCall | 0b7e678 | 2011-03-24 11:26:52 +0000 | [diff] [blame] | 754 | ParsedAttributes attrs(AttrFactory); |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 755 | // If attributes exist after tag, parse them. |
| 756 | if (Tok.is(tok::kw___attribute)) |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 757 | ParseGNUAttributes(attrs); |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 758 | |
Steve Naroff | f59e17e | 2008-12-24 20:59:21 +0000 | [diff] [blame] | 759 | // If declspecs exist after tag, parse them. |
John McCall | b1d397c | 2010-08-05 17:13:11 +0000 | [diff] [blame] | 760 | while (Tok.is(tok::kw___declspec)) |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 761 | ParseMicrosoftDeclSpec(attrs); |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 762 | |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 763 | // If C++0x attributes exist here, parse them. |
| 764 | // FIXME: Are we consistent with the ordering of parsing of different |
| 765 | // styles of attributes? |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 766 | MaybeParseCXX0XAttributes(attrs); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 767 | |
John Wiegley | 20c0da7 | 2011-04-27 23:09:49 +0000 | [diff] [blame] | 768 | if (TagType == DeclSpec::TST_struct && |
Douglas Gregor | b467cda | 2011-04-29 15:31:39 +0000 | [diff] [blame] | 769 | !Tok.is(tok::identifier) && |
| 770 | Tok.getIdentifierInfo() && |
| 771 | (Tok.is(tok::kw___is_arithmetic) || |
| 772 | Tok.is(tok::kw___is_convertible) || |
John Wiegley | 20c0da7 | 2011-04-27 23:09:49 +0000 | [diff] [blame] | 773 | Tok.is(tok::kw___is_empty) || |
Douglas Gregor | b467cda | 2011-04-29 15:31:39 +0000 | [diff] [blame] | 774 | Tok.is(tok::kw___is_floating_point) || |
| 775 | Tok.is(tok::kw___is_function) || |
John Wiegley | 20c0da7 | 2011-04-27 23:09:49 +0000 | [diff] [blame] | 776 | Tok.is(tok::kw___is_fundamental) || |
Douglas Gregor | b467cda | 2011-04-29 15:31:39 +0000 | [diff] [blame] | 777 | Tok.is(tok::kw___is_integral) || |
| 778 | Tok.is(tok::kw___is_member_function_pointer) || |
| 779 | Tok.is(tok::kw___is_member_pointer) || |
| 780 | Tok.is(tok::kw___is_pod) || |
| 781 | Tok.is(tok::kw___is_pointer) || |
| 782 | Tok.is(tok::kw___is_same) || |
Douglas Gregor | 877222e | 2011-04-29 01:38:03 +0000 | [diff] [blame] | 783 | Tok.is(tok::kw___is_scalar) || |
Douglas Gregor | b467cda | 2011-04-29 15:31:39 +0000 | [diff] [blame] | 784 | Tok.is(tok::kw___is_signed) || |
| 785 | Tok.is(tok::kw___is_unsigned) || |
| 786 | Tok.is(tok::kw___is_void))) { |
| 787 | // GNU libstdc++ 4.2 and libc++ uaw certain intrinsic names as the |
| 788 | // name of struct templates, but some are keywords in GCC >= 4.3 |
| 789 | // and Clang. Therefore, when we see the token sequence "struct |
| 790 | // X", make X into a normal identifier rather than a keyword, to |
| 791 | // allow libstdc++ 4.2 and libc++ to work properly. |
Argyrios Kyrtzidis | 646395b | 2010-08-11 22:55:12 +0000 | [diff] [blame] | 792 | Tok.getIdentifierInfo()->RevertTokenIDToIdentifier(); |
Douglas Gregor | b117a60 | 2009-09-04 05:53:02 +0000 | [diff] [blame] | 793 | Tok.setKind(tok::identifier); |
| 794 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 795 | |
Argyrios Kyrtzidis | eb83ecd | 2008-11-08 16:45:02 +0000 | [diff] [blame] | 796 | // Parse the (optional) nested-name-specifier. |
John McCall | aa87d33 | 2009-12-12 11:40:51 +0000 | [diff] [blame] | 797 | CXXScopeSpec &SS = DS.getTypeSpecScope(); |
Chris Lattner | 08d92ec | 2009-12-10 00:32:41 +0000 | [diff] [blame] | 798 | if (getLang().CPlusPlus) { |
| 799 | // "FOO : BAR" is not a potential typo for "FOO::BAR". |
| 800 | ColonProtectionRAIIObject X(*this); |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 801 | |
John McCall | b3d8748 | 2010-08-24 05:47:05 +0000 | [diff] [blame] | 802 | if (ParseOptionalCXXScopeSpecifier(SS, ParsedType(), true)) |
John McCall | 207014e | 2010-07-30 06:26:29 +0000 | [diff] [blame] | 803 | DS.SetTypeSpecError(); |
John McCall | 9ba6166 | 2010-02-26 08:45:28 +0000 | [diff] [blame] | 804 | if (SS.isSet()) |
Chris Lattner | 08d92ec | 2009-12-10 00:32:41 +0000 | [diff] [blame] | 805 | if (Tok.isNot(tok::identifier) && Tok.isNot(tok::annot_template_id)) |
| 806 | Diag(Tok, diag::err_expected_ident); |
| 807 | } |
Douglas Gregor | cc63668 | 2009-02-17 23:15:12 +0000 | [diff] [blame] | 808 | |
Douglas Gregor | 2cc782f | 2009-10-30 21:46:58 +0000 | [diff] [blame] | 809 | TemplateParameterLists *TemplateParams = TemplateInfo.TemplateParams; |
| 810 | |
Douglas Gregor | cc63668 | 2009-02-17 23:15:12 +0000 | [diff] [blame] | 811 | // Parse the (optional) class name or simple-template-id. |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 812 | IdentifierInfo *Name = 0; |
| 813 | SourceLocation NameLoc; |
Douglas Gregor | 39a8de1 | 2009-02-25 19:37:18 +0000 | [diff] [blame] | 814 | TemplateIdAnnotation *TemplateId = 0; |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 815 | if (Tok.is(tok::identifier)) { |
| 816 | Name = Tok.getIdentifierInfo(); |
| 817 | NameLoc = ConsumeToken(); |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 818 | |
Douglas Gregor | 5ee3734 | 2010-05-30 22:30:21 +0000 | [diff] [blame] | 819 | if (Tok.is(tok::less) && getLang().CPlusPlus) { |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 820 | // The name was supposed to refer to a template, but didn't. |
Douglas Gregor | 2cc782f | 2009-10-30 21:46:58 +0000 | [diff] [blame] | 821 | // Eat the template argument list and try to continue parsing this as |
| 822 | // a class (or template thereof). |
| 823 | TemplateArgList TemplateArgs; |
Douglas Gregor | 2cc782f | 2009-10-30 21:46:58 +0000 | [diff] [blame] | 824 | SourceLocation LAngleLoc, RAngleLoc; |
Douglas Gregor | 059101f | 2011-03-02 00:47:37 +0000 | [diff] [blame] | 825 | if (ParseTemplateIdAfterTemplateName(TemplateTy(), NameLoc, SS, |
Douglas Gregor | 2cc782f | 2009-10-30 21:46:58 +0000 | [diff] [blame] | 826 | true, LAngleLoc, |
Douglas Gregor | 314b97f | 2009-11-10 19:49:08 +0000 | [diff] [blame] | 827 | TemplateArgs, RAngleLoc)) { |
Douglas Gregor | 2cc782f | 2009-10-30 21:46:58 +0000 | [diff] [blame] | 828 | // We couldn't parse the template argument list at all, so don't |
| 829 | // try to give any location information for the list. |
| 830 | LAngleLoc = RAngleLoc = SourceLocation(); |
| 831 | } |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 832 | |
Douglas Gregor | 2cc782f | 2009-10-30 21:46:58 +0000 | [diff] [blame] | 833 | Diag(NameLoc, diag::err_explicit_spec_non_template) |
Douglas Gregor | c78c06d | 2009-10-30 22:09:44 +0000 | [diff] [blame] | 834 | << (TemplateInfo.Kind == ParsedTemplateInfo::ExplicitInstantiation) |
Douglas Gregor | 2cc782f | 2009-10-30 21:46:58 +0000 | [diff] [blame] | 835 | << (TagType == DeclSpec::TST_class? 0 |
| 836 | : TagType == DeclSpec::TST_struct? 1 |
| 837 | : 2) |
| 838 | << Name |
| 839 | << SourceRange(LAngleLoc, RAngleLoc); |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 840 | |
| 841 | // Strip off the last template parameter list if it was empty, since |
Douglas Gregor | c78c06d | 2009-10-30 22:09:44 +0000 | [diff] [blame] | 842 | // we've removed its template argument list. |
| 843 | if (TemplateParams && TemplateInfo.LastParameterListWasEmpty) { |
| 844 | if (TemplateParams && TemplateParams->size() > 1) { |
| 845 | TemplateParams->pop_back(); |
| 846 | } else { |
| 847 | TemplateParams = 0; |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 848 | const_cast<ParsedTemplateInfo&>(TemplateInfo).Kind |
Douglas Gregor | c78c06d | 2009-10-30 22:09:44 +0000 | [diff] [blame] | 849 | = ParsedTemplateInfo::NonTemplate; |
| 850 | } |
| 851 | } else if (TemplateInfo.Kind |
| 852 | == ParsedTemplateInfo::ExplicitInstantiation) { |
| 853 | // Pretend this is just a forward declaration. |
Douglas Gregor | 2cc782f | 2009-10-30 21:46:58 +0000 | [diff] [blame] | 854 | TemplateParams = 0; |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 855 | const_cast<ParsedTemplateInfo&>(TemplateInfo).Kind |
Douglas Gregor | 2cc782f | 2009-10-30 21:46:58 +0000 | [diff] [blame] | 856 | = ParsedTemplateInfo::NonTemplate; |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 857 | const_cast<ParsedTemplateInfo&>(TemplateInfo).TemplateLoc |
Douglas Gregor | c78c06d | 2009-10-30 22:09:44 +0000 | [diff] [blame] | 858 | = SourceLocation(); |
| 859 | const_cast<ParsedTemplateInfo&>(TemplateInfo).ExternLoc |
| 860 | = SourceLocation(); |
Douglas Gregor | 2cc782f | 2009-10-30 21:46:58 +0000 | [diff] [blame] | 861 | } |
Douglas Gregor | 2cc782f | 2009-10-30 21:46:58 +0000 | [diff] [blame] | 862 | } |
Douglas Gregor | 39a8de1 | 2009-02-25 19:37:18 +0000 | [diff] [blame] | 863 | } else if (Tok.is(tok::annot_template_id)) { |
| 864 | TemplateId = static_cast<TemplateIdAnnotation *>(Tok.getAnnotationValue()); |
| 865 | NameLoc = ConsumeToken(); |
Douglas Gregor | cc63668 | 2009-02-17 23:15:12 +0000 | [diff] [blame] | 866 | |
Douglas Gregor | 059101f | 2011-03-02 00:47:37 +0000 | [diff] [blame] | 867 | if (TemplateId->Kind != TNK_Type_template && |
| 868 | TemplateId->Kind != TNK_Dependent_template_name) { |
Douglas Gregor | 39a8de1 | 2009-02-25 19:37:18 +0000 | [diff] [blame] | 869 | // The template-name in the simple-template-id refers to |
| 870 | // something other than a class template. Give an appropriate |
| 871 | // error message and skip to the ';'. |
| 872 | SourceRange Range(NameLoc); |
| 873 | if (SS.isNotEmpty()) |
| 874 | Range.setBegin(SS.getBeginLoc()); |
Douglas Gregor | cc63668 | 2009-02-17 23:15:12 +0000 | [diff] [blame] | 875 | |
Douglas Gregor | 39a8de1 | 2009-02-25 19:37:18 +0000 | [diff] [blame] | 876 | Diag(TemplateId->LAngleLoc, diag::err_template_spec_syntax_non_template) |
| 877 | << Name << static_cast<int>(TemplateId->Kind) << Range; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 878 | |
Douglas Gregor | 39a8de1 | 2009-02-25 19:37:18 +0000 | [diff] [blame] | 879 | DS.SetTypeSpecError(); |
| 880 | SkipUntil(tok::semi, false, true); |
| 881 | TemplateId->Destroy(); |
Chandler Carruth | 926c4b4 | 2010-06-28 08:39:25 +0000 | [diff] [blame] | 882 | if (SuppressingAccessChecks) |
| 883 | Actions.ActOnStopSuppressingAccessChecks(); |
| 884 | |
Douglas Gregor | 39a8de1 | 2009-02-25 19:37:18 +0000 | [diff] [blame] | 885 | return; |
Douglas Gregor | cc63668 | 2009-02-17 23:15:12 +0000 | [diff] [blame] | 886 | } |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 887 | } |
| 888 | |
Chandler Carruth | 926c4b4 | 2010-06-28 08:39:25 +0000 | [diff] [blame] | 889 | // As soon as we're finished parsing the class's template-id, turn access |
| 890 | // checking back on. |
| 891 | if (SuppressingAccessChecks) |
| 892 | Actions.ActOnStopSuppressingAccessChecks(); |
| 893 | |
John McCall | 67d1a67 | 2009-08-06 02:15:43 +0000 | [diff] [blame] | 894 | // There are four options here. If we have 'struct foo;', then this |
| 895 | // is either a forward declaration or a friend declaration, which |
Anders Carlsson | cc54d59 | 2011-01-22 16:56:46 +0000 | [diff] [blame] | 896 | // have to be treated differently. If we have 'struct foo {...', |
Anders Carlsson | 1d20927 | 2011-03-25 14:55:14 +0000 | [diff] [blame] | 897 | // 'struct foo :...' or 'struct foo final[opt]' then this is a |
Anders Carlsson | cc54d59 | 2011-01-22 16:56:46 +0000 | [diff] [blame] | 898 | // definition. Otherwise we have something like 'struct foo xyz', a reference. |
Sebastian Redl | d9bafa7 | 2010-02-03 21:21:43 +0000 | [diff] [blame] | 899 | // However, in some contexts, things look like declarations but are just |
| 900 | // references, e.g. |
| 901 | // new struct s; |
| 902 | // or |
| 903 | // &T::operator struct s; |
| 904 | // For these, SuppressDeclarations is true. |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 905 | Sema::TagUseKind TUK; |
Sebastian Redl | d9bafa7 | 2010-02-03 21:21:43 +0000 | [diff] [blame] | 906 | if (SuppressDeclarations) |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 907 | TUK = Sema::TUK_Reference; |
Anders Carlsson | cc54d59 | 2011-01-22 16:56:46 +0000 | [diff] [blame] | 908 | else if (Tok.is(tok::l_brace) || |
| 909 | (getLang().CPlusPlus && Tok.is(tok::colon)) || |
Anders Carlsson | 8a29ba0 | 2011-03-25 14:53:29 +0000 | [diff] [blame] | 910 | isCXX0XFinalKeyword()) { |
Douglas Gregor | d85bea2 | 2009-09-26 06:47:28 +0000 | [diff] [blame] | 911 | if (DS.isFriendSpecified()) { |
| 912 | // C++ [class.friend]p2: |
| 913 | // A class shall not be defined in a friend declaration. |
| 914 | Diag(Tok.getLocation(), diag::err_friend_decl_defines_class) |
| 915 | << SourceRange(DS.getFriendSpecLoc()); |
| 916 | |
| 917 | // Skip everything up to the semicolon, so that this looks like a proper |
| 918 | // friend class (or template thereof) declaration. |
| 919 | SkipUntil(tok::semi, true, true); |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 920 | TUK = Sema::TUK_Friend; |
Douglas Gregor | d85bea2 | 2009-09-26 06:47:28 +0000 | [diff] [blame] | 921 | } else { |
| 922 | // Okay, this is a class definition. |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 923 | TUK = Sema::TUK_Definition; |
Douglas Gregor | d85bea2 | 2009-09-26 06:47:28 +0000 | [diff] [blame] | 924 | } |
| 925 | } else if (Tok.is(tok::semi)) |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 926 | TUK = DS.isFriendSpecified() ? Sema::TUK_Friend : Sema::TUK_Declaration; |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 927 | else |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 928 | TUK = Sema::TUK_Reference; |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 929 | |
John McCall | 207014e | 2010-07-30 06:26:29 +0000 | [diff] [blame] | 930 | if (!Name && !TemplateId && (DS.getTypeSpecType() == DeclSpec::TST_error || |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 931 | TUK != Sema::TUK_Definition)) { |
John McCall | 207014e | 2010-07-30 06:26:29 +0000 | [diff] [blame] | 932 | if (DS.getTypeSpecType() != DeclSpec::TST_error) { |
| 933 | // We have a declaration or reference to an anonymous class. |
| 934 | Diag(StartLoc, diag::err_anon_type_definition) |
| 935 | << DeclSpec::getSpecifierName(TagType); |
| 936 | } |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 937 | |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 938 | SkipUntil(tok::comma, true); |
Douglas Gregor | 39a8de1 | 2009-02-25 19:37:18 +0000 | [diff] [blame] | 939 | |
| 940 | if (TemplateId) |
| 941 | TemplateId->Destroy(); |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 942 | return; |
| 943 | } |
| 944 | |
Douglas Gregor | ddc29e1 | 2009-02-06 22:42:48 +0000 | [diff] [blame] | 945 | // Create the tag portion of the class or class template. |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 946 | DeclResult TagOrTempResult = true; // invalid |
| 947 | TypeResult TypeResult = true; // invalid |
Douglas Gregor | 4d9a16f | 2009-05-12 23:25:50 +0000 | [diff] [blame] | 948 | |
Douglas Gregor | 402abb5 | 2009-05-28 23:31:59 +0000 | [diff] [blame] | 949 | bool Owned = false; |
John McCall | f1bbbb4 | 2009-09-04 01:14:41 +0000 | [diff] [blame] | 950 | if (TemplateId) { |
Douglas Gregor | 4d9a16f | 2009-05-12 23:25:50 +0000 | [diff] [blame] | 951 | // Explicit specialization, class template partial specialization, |
| 952 | // or explicit instantiation. |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 953 | ASTTemplateArgsPtr TemplateArgsPtr(Actions, |
Douglas Gregor | 39a8de1 | 2009-02-25 19:37:18 +0000 | [diff] [blame] | 954 | TemplateId->getTemplateArgs(), |
Douglas Gregor | 39a8de1 | 2009-02-25 19:37:18 +0000 | [diff] [blame] | 955 | TemplateId->NumArgs); |
Douglas Gregor | 4d9a16f | 2009-05-12 23:25:50 +0000 | [diff] [blame] | 956 | if (TemplateInfo.Kind == ParsedTemplateInfo::ExplicitInstantiation && |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 957 | TUK == Sema::TUK_Declaration) { |
Douglas Gregor | 4d9a16f | 2009-05-12 23:25:50 +0000 | [diff] [blame] | 958 | // This is an explicit instantiation of a class template. |
| 959 | TagOrTempResult |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 960 | = Actions.ActOnExplicitInstantiation(getCurScope(), |
Douglas Gregor | 45f9655 | 2009-09-04 06:33:52 +0000 | [diff] [blame] | 961 | TemplateInfo.ExternLoc, |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 962 | TemplateInfo.TemplateLoc, |
Douglas Gregor | 4d9a16f | 2009-05-12 23:25:50 +0000 | [diff] [blame] | 963 | TagType, |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 964 | StartLoc, |
Douglas Gregor | 4d9a16f | 2009-05-12 23:25:50 +0000 | [diff] [blame] | 965 | SS, |
John McCall | 2b5289b | 2010-08-23 07:28:44 +0000 | [diff] [blame] | 966 | TemplateId->Template, |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 967 | TemplateId->TemplateNameLoc, |
| 968 | TemplateId->LAngleLoc, |
Douglas Gregor | 4d9a16f | 2009-05-12 23:25:50 +0000 | [diff] [blame] | 969 | TemplateArgsPtr, |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 970 | TemplateId->RAngleLoc, |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 971 | attrs.getList()); |
John McCall | 74256f5 | 2010-04-14 00:24:33 +0000 | [diff] [blame] | 972 | |
| 973 | // Friend template-ids are treated as references unless |
| 974 | // they have template headers, in which case they're ill-formed |
| 975 | // (FIXME: "template <class T> friend class A<T>::B<int>;"). |
| 976 | // We diagnose this error in ActOnClassTemplateSpecialization. |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 977 | } else if (TUK == Sema::TUK_Reference || |
| 978 | (TUK == Sema::TUK_Friend && |
John McCall | 74256f5 | 2010-04-14 00:24:33 +0000 | [diff] [blame] | 979 | TemplateInfo.Kind == ParsedTemplateInfo::NonTemplate)) { |
Douglas Gregor | 059101f | 2011-03-02 00:47:37 +0000 | [diff] [blame] | 980 | TypeResult = Actions.ActOnTagTemplateIdType(TUK, TagType, |
| 981 | StartLoc, |
| 982 | TemplateId->SS, |
| 983 | TemplateId->Template, |
| 984 | TemplateId->TemplateNameLoc, |
| 985 | TemplateId->LAngleLoc, |
| 986 | TemplateArgsPtr, |
| 987 | TemplateId->RAngleLoc); |
Douglas Gregor | 4d9a16f | 2009-05-12 23:25:50 +0000 | [diff] [blame] | 988 | } else { |
| 989 | // This is an explicit specialization or a class template |
| 990 | // partial specialization. |
| 991 | TemplateParameterLists FakedParamLists; |
| 992 | |
| 993 | if (TemplateInfo.Kind == ParsedTemplateInfo::ExplicitInstantiation) { |
| 994 | // This looks like an explicit instantiation, because we have |
| 995 | // something like |
| 996 | // |
| 997 | // template class Foo<X> |
| 998 | // |
Douglas Gregor | 3f5b61c | 2009-05-14 00:28:11 +0000 | [diff] [blame] | 999 | // but it actually has a definition. Most likely, this was |
Douglas Gregor | 4d9a16f | 2009-05-12 23:25:50 +0000 | [diff] [blame] | 1000 | // meant to be an explicit specialization, but the user forgot |
| 1001 | // the '<>' after 'template'. |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 1002 | assert(TUK == Sema::TUK_Definition && "Expected a definition here"); |
Douglas Gregor | 4d9a16f | 2009-05-12 23:25:50 +0000 | [diff] [blame] | 1003 | |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1004 | SourceLocation LAngleLoc |
Douglas Gregor | 4d9a16f | 2009-05-12 23:25:50 +0000 | [diff] [blame] | 1005 | = PP.getLocForEndOfToken(TemplateInfo.TemplateLoc); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1006 | Diag(TemplateId->TemplateNameLoc, |
Douglas Gregor | 4d9a16f | 2009-05-12 23:25:50 +0000 | [diff] [blame] | 1007 | diag::err_explicit_instantiation_with_definition) |
| 1008 | << SourceRange(TemplateInfo.TemplateLoc) |
Douglas Gregor | 849b243 | 2010-03-31 17:46:05 +0000 | [diff] [blame] | 1009 | << FixItHint::CreateInsertion(LAngleLoc, "<>"); |
Douglas Gregor | 4d9a16f | 2009-05-12 23:25:50 +0000 | [diff] [blame] | 1010 | |
| 1011 | // Create a fake template parameter list that contains only |
| 1012 | // "template<>", so that we treat this construct as a class |
| 1013 | // template specialization. |
| 1014 | FakedParamLists.push_back( |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1015 | Actions.ActOnTemplateParameterList(0, SourceLocation(), |
Douglas Gregor | 4d9a16f | 2009-05-12 23:25:50 +0000 | [diff] [blame] | 1016 | TemplateInfo.TemplateLoc, |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1017 | LAngleLoc, |
| 1018 | 0, 0, |
Douglas Gregor | 4d9a16f | 2009-05-12 23:25:50 +0000 | [diff] [blame] | 1019 | LAngleLoc)); |
| 1020 | TemplateParams = &FakedParamLists; |
| 1021 | } |
| 1022 | |
| 1023 | // Build the class template specialization. |
| 1024 | TagOrTempResult |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 1025 | = Actions.ActOnClassTemplateSpecialization(getCurScope(), TagType, TUK, |
Douglas Gregor | 39a8de1 | 2009-02-25 19:37:18 +0000 | [diff] [blame] | 1026 | StartLoc, SS, |
John McCall | 2b5289b | 2010-08-23 07:28:44 +0000 | [diff] [blame] | 1027 | TemplateId->Template, |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1028 | TemplateId->TemplateNameLoc, |
| 1029 | TemplateId->LAngleLoc, |
Douglas Gregor | 39a8de1 | 2009-02-25 19:37:18 +0000 | [diff] [blame] | 1030 | TemplateArgsPtr, |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1031 | TemplateId->RAngleLoc, |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 1032 | attrs.getList(), |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 1033 | MultiTemplateParamsArg(Actions, |
Douglas Gregor | cc63668 | 2009-02-17 23:15:12 +0000 | [diff] [blame] | 1034 | TemplateParams? &(*TemplateParams)[0] : 0, |
| 1035 | TemplateParams? TemplateParams->size() : 0)); |
Douglas Gregor | 4d9a16f | 2009-05-12 23:25:50 +0000 | [diff] [blame] | 1036 | } |
Douglas Gregor | 39a8de1 | 2009-02-25 19:37:18 +0000 | [diff] [blame] | 1037 | TemplateId->Destroy(); |
Douglas Gregor | 3f5b61c | 2009-05-14 00:28:11 +0000 | [diff] [blame] | 1038 | } else if (TemplateInfo.Kind == ParsedTemplateInfo::ExplicitInstantiation && |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 1039 | TUK == Sema::TUK_Declaration) { |
Douglas Gregor | 3f5b61c | 2009-05-14 00:28:11 +0000 | [diff] [blame] | 1040 | // Explicit instantiation of a member of a class template |
| 1041 | // specialization, e.g., |
| 1042 | // |
| 1043 | // template struct Outer<int>::Inner; |
| 1044 | // |
| 1045 | TagOrTempResult |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 1046 | = Actions.ActOnExplicitInstantiation(getCurScope(), |
Douglas Gregor | 45f9655 | 2009-09-04 06:33:52 +0000 | [diff] [blame] | 1047 | TemplateInfo.ExternLoc, |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1048 | TemplateInfo.TemplateLoc, |
| 1049 | TagType, StartLoc, SS, Name, |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 1050 | NameLoc, attrs.getList()); |
John McCall | 9a34edb | 2010-10-19 01:40:49 +0000 | [diff] [blame] | 1051 | } else if (TUK == Sema::TUK_Friend && |
| 1052 | TemplateInfo.Kind != ParsedTemplateInfo::NonTemplate) { |
| 1053 | TagOrTempResult = |
| 1054 | Actions.ActOnTemplatedFriendTag(getCurScope(), DS.getFriendSpecLoc(), |
| 1055 | TagType, StartLoc, SS, |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 1056 | Name, NameLoc, attrs.getList(), |
John McCall | 9a34edb | 2010-10-19 01:40:49 +0000 | [diff] [blame] | 1057 | MultiTemplateParamsArg(Actions, |
| 1058 | TemplateParams? &(*TemplateParams)[0] : 0, |
| 1059 | TemplateParams? TemplateParams->size() : 0)); |
Douglas Gregor | 3f5b61c | 2009-05-14 00:28:11 +0000 | [diff] [blame] | 1060 | } else { |
| 1061 | if (TemplateInfo.Kind == ParsedTemplateInfo::ExplicitInstantiation && |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 1062 | TUK == Sema::TUK_Definition) { |
Douglas Gregor | 3f5b61c | 2009-05-14 00:28:11 +0000 | [diff] [blame] | 1063 | // FIXME: Diagnose this particular error. |
| 1064 | } |
| 1065 | |
John McCall | c4e7019 | 2009-09-11 04:59:25 +0000 | [diff] [blame] | 1066 | bool IsDependent = false; |
| 1067 | |
John McCall | a25c408 | 2010-10-19 18:40:57 +0000 | [diff] [blame] | 1068 | // Don't pass down template parameter lists if this is just a tag |
| 1069 | // reference. For example, we don't need the template parameters here: |
| 1070 | // template <class T> class A *makeA(T t); |
| 1071 | MultiTemplateParamsArg TParams; |
| 1072 | if (TUK != Sema::TUK_Reference && TemplateParams) |
| 1073 | TParams = |
| 1074 | MultiTemplateParamsArg(&(*TemplateParams)[0], TemplateParams->size()); |
| 1075 | |
Douglas Gregor | 3f5b61c | 2009-05-14 00:28:11 +0000 | [diff] [blame] | 1076 | // Declaration or definition of a class type |
John McCall | 9a34edb | 2010-10-19 01:40:49 +0000 | [diff] [blame] | 1077 | TagOrTempResult = Actions.ActOnTag(getCurScope(), TagType, TUK, StartLoc, |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 1078 | SS, Name, NameLoc, attrs.getList(), AS, |
John McCall | a25c408 | 2010-10-19 18:40:57 +0000 | [diff] [blame] | 1079 | TParams, Owned, IsDependent, false, |
Abramo Bagnara | a88cefd | 2010-12-03 18:54:17 +0000 | [diff] [blame] | 1080 | false, clang::TypeResult()); |
John McCall | c4e7019 | 2009-09-11 04:59:25 +0000 | [diff] [blame] | 1081 | |
| 1082 | // If ActOnTag said the type was dependent, try again with the |
| 1083 | // less common call. |
John McCall | 9a34edb | 2010-10-19 01:40:49 +0000 | [diff] [blame] | 1084 | if (IsDependent) { |
| 1085 | assert(TUK == Sema::TUK_Reference || TUK == Sema::TUK_Friend); |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 1086 | TypeResult = Actions.ActOnDependentTag(getCurScope(), TagType, TUK, |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 1087 | SS, Name, StartLoc, NameLoc); |
John McCall | 9a34edb | 2010-10-19 01:40:49 +0000 | [diff] [blame] | 1088 | } |
Douglas Gregor | 3f5b61c | 2009-05-14 00:28:11 +0000 | [diff] [blame] | 1089 | } |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 1090 | |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 1091 | // If there is a body, parse it and inform the actions module. |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 1092 | if (TUK == Sema::TUK_Definition) { |
John McCall | bd0dfa5 | 2009-12-19 21:48:58 +0000 | [diff] [blame] | 1093 | assert(Tok.is(tok::l_brace) || |
Anders Carlsson | cc54d59 | 2011-01-22 16:56:46 +0000 | [diff] [blame] | 1094 | (getLang().CPlusPlus && Tok.is(tok::colon)) || |
Anders Carlsson | 8a29ba0 | 2011-03-25 14:53:29 +0000 | [diff] [blame] | 1095 | isCXX0XFinalKeyword()); |
Argyrios Kyrtzidis | 0795232 | 2008-07-01 10:37:29 +0000 | [diff] [blame] | 1096 | if (getLang().CPlusPlus) |
Douglas Gregor | 212e81c | 2009-03-25 00:13:59 +0000 | [diff] [blame] | 1097 | ParseCXXMemberSpecification(StartLoc, TagType, TagOrTempResult.get()); |
Argyrios Kyrtzidis | 0795232 | 2008-07-01 10:37:29 +0000 | [diff] [blame] | 1098 | else |
Douglas Gregor | 212e81c | 2009-03-25 00:13:59 +0000 | [diff] [blame] | 1099 | ParseStructUnionBody(StartLoc, TagType, TagOrTempResult.get()); |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 1100 | } |
| 1101 | |
John McCall | b3d8748 | 2010-08-24 05:47:05 +0000 | [diff] [blame] | 1102 | const char *PrevSpec = 0; |
| 1103 | unsigned DiagID; |
| 1104 | bool Result; |
John McCall | c4e7019 | 2009-09-11 04:59:25 +0000 | [diff] [blame] | 1105 | if (!TypeResult.isInvalid()) { |
Abramo Bagnara | 0daaf32 | 2011-03-16 20:16:18 +0000 | [diff] [blame] | 1106 | Result = DS.SetTypeSpecType(DeclSpec::TST_typename, StartLoc, |
| 1107 | NameLoc.isValid() ? NameLoc : StartLoc, |
John McCall | b3d8748 | 2010-08-24 05:47:05 +0000 | [diff] [blame] | 1108 | PrevSpec, DiagID, TypeResult.get()); |
John McCall | c4e7019 | 2009-09-11 04:59:25 +0000 | [diff] [blame] | 1109 | } else if (!TagOrTempResult.isInvalid()) { |
Abramo Bagnara | 0daaf32 | 2011-03-16 20:16:18 +0000 | [diff] [blame] | 1110 | Result = DS.SetTypeSpecType(TagType, StartLoc, |
| 1111 | NameLoc.isValid() ? NameLoc : StartLoc, |
| 1112 | PrevSpec, DiagID, TagOrTempResult.get(), Owned); |
John McCall | c4e7019 | 2009-09-11 04:59:25 +0000 | [diff] [blame] | 1113 | } else { |
Douglas Gregor | ddc29e1 | 2009-02-06 22:42:48 +0000 | [diff] [blame] | 1114 | DS.SetTypeSpecError(); |
Anders Carlsson | 66e9977 | 2009-05-11 22:27:47 +0000 | [diff] [blame] | 1115 | return; |
| 1116 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1117 | |
John McCall | b3d8748 | 2010-08-24 05:47:05 +0000 | [diff] [blame] | 1118 | if (Result) |
John McCall | fec5401 | 2009-08-03 20:12:06 +0000 | [diff] [blame] | 1119 | Diag(StartLoc, DiagID) << PrevSpec; |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 1120 | |
Chris Lattner | 4ed5d91 | 2010-02-02 01:23:29 +0000 | [diff] [blame] | 1121 | // At this point, we've successfully parsed a class-specifier in 'definition' |
| 1122 | // form (e.g. "struct foo { int x; }". While we could just return here, we're |
| 1123 | // going to look at what comes after it to improve error recovery. If an |
| 1124 | // impossible token occurs next, we assume that the programmer forgot a ; at |
| 1125 | // the end of the declaration and recover that way. |
| 1126 | // |
| 1127 | // This switch enumerates the valid "follow" set for definition. |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 1128 | if (TUK == Sema::TUK_Definition) { |
Chris Lattner | b3a4e43 | 2010-02-28 18:18:36 +0000 | [diff] [blame] | 1129 | bool ExpectedSemi = true; |
Chris Lattner | 4ed5d91 | 2010-02-02 01:23:29 +0000 | [diff] [blame] | 1130 | switch (Tok.getKind()) { |
Chris Lattner | b3a4e43 | 2010-02-28 18:18:36 +0000 | [diff] [blame] | 1131 | default: break; |
Chris Lattner | 4ed5d91 | 2010-02-02 01:23:29 +0000 | [diff] [blame] | 1132 | case tok::semi: // struct foo {...} ; |
Chris Lattner | 99c9520 | 2010-02-02 17:32:27 +0000 | [diff] [blame] | 1133 | case tok::star: // struct foo {...} * P; |
| 1134 | case tok::amp: // struct foo {...} & R = ... |
| 1135 | case tok::identifier: // struct foo {...} V ; |
| 1136 | case tok::r_paren: //(struct foo {...} ) {4} |
| 1137 | case tok::annot_cxxscope: // struct foo {...} a:: b; |
| 1138 | case tok::annot_typename: // struct foo {...} a ::b; |
| 1139 | case tok::annot_template_id: // struct foo {...} a<int> ::b; |
Chris Lattner | c2e1c1a | 2010-02-03 20:41:24 +0000 | [diff] [blame] | 1140 | case tok::l_paren: // struct foo {...} ( x); |
Chris Lattner | 16acfee | 2010-02-03 01:45:03 +0000 | [diff] [blame] | 1141 | case tok::comma: // __builtin_offsetof(struct foo{...} , |
Chris Lattner | b3a4e43 | 2010-02-28 18:18:36 +0000 | [diff] [blame] | 1142 | ExpectedSemi = false; |
| 1143 | break; |
| 1144 | // Type qualifiers |
| 1145 | case tok::kw_const: // struct foo {...} const x; |
| 1146 | case tok::kw_volatile: // struct foo {...} volatile x; |
| 1147 | case tok::kw_restrict: // struct foo {...} restrict x; |
| 1148 | case tok::kw_inline: // struct foo {...} inline foo() {}; |
Chris Lattner | 99c9520 | 2010-02-02 17:32:27 +0000 | [diff] [blame] | 1149 | // Storage-class specifiers |
| 1150 | case tok::kw_static: // struct foo {...} static x; |
| 1151 | case tok::kw_extern: // struct foo {...} extern x; |
| 1152 | case tok::kw_typedef: // struct foo {...} typedef x; |
| 1153 | case tok::kw_register: // struct foo {...} register x; |
| 1154 | case tok::kw_auto: // struct foo {...} auto x; |
Douglas Gregor | 33f9924 | 2010-05-17 18:19:56 +0000 | [diff] [blame] | 1155 | case tok::kw_mutable: // struct foo {...} mutable x; |
Chris Lattner | b3a4e43 | 2010-02-28 18:18:36 +0000 | [diff] [blame] | 1156 | // As shown above, type qualifiers and storage class specifiers absolutely |
| 1157 | // can occur after class specifiers according to the grammar. However, |
Chris Lattner | fc8f0e1 | 2011-04-15 05:22:18 +0000 | [diff] [blame] | 1158 | // almost no one actually writes code like this. If we see one of these, |
Chris Lattner | b3a4e43 | 2010-02-28 18:18:36 +0000 | [diff] [blame] | 1159 | // it is much more likely that someone missed a semi colon and the |
| 1160 | // type/storage class specifier we're seeing is part of the *next* |
| 1161 | // intended declaration, as in: |
| 1162 | // |
| 1163 | // struct foo { ... } |
| 1164 | // typedef int X; |
| 1165 | // |
| 1166 | // We'd really like to emit a missing semicolon error instead of emitting |
| 1167 | // an error on the 'int' saying that you can't have two type specifiers in |
| 1168 | // the same declaration of X. Because of this, we look ahead past this |
| 1169 | // token to see if it's a type specifier. If so, we know the code is |
| 1170 | // otherwise invalid, so we can produce the expected semi error. |
| 1171 | if (!isKnownToBeTypeSpecifier(NextToken())) |
| 1172 | ExpectedSemi = false; |
Chris Lattner | 4ed5d91 | 2010-02-02 01:23:29 +0000 | [diff] [blame] | 1173 | break; |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 1174 | |
| 1175 | case tok::r_brace: // struct bar { struct foo {...} } |
Chris Lattner | 4ed5d91 | 2010-02-02 01:23:29 +0000 | [diff] [blame] | 1176 | // Missing ';' at end of struct is accepted as an extension in C mode. |
Chris Lattner | b3a4e43 | 2010-02-28 18:18:36 +0000 | [diff] [blame] | 1177 | if (!getLang().CPlusPlus) |
| 1178 | ExpectedSemi = false; |
| 1179 | break; |
| 1180 | } |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 1181 | |
Chris Lattner | b3a4e43 | 2010-02-28 18:18:36 +0000 | [diff] [blame] | 1182 | if (ExpectedSemi) { |
Chris Lattner | 4ed5d91 | 2010-02-02 01:23:29 +0000 | [diff] [blame] | 1183 | ExpectAndConsume(tok::semi, diag::err_expected_semi_after_tagdecl, |
| 1184 | TagType == DeclSpec::TST_class ? "class" |
| 1185 | : TagType == DeclSpec::TST_struct? "struct" : "union"); |
| 1186 | // Push this token back into the preprocessor and change our current token |
| 1187 | // to ';' so that the rest of the code recovers as though there were an |
| 1188 | // ';' after the definition. |
| 1189 | PP.EnterToken(Tok); |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 1190 | Tok.setKind(tok::semi); |
Chris Lattner | 4ed5d91 | 2010-02-02 01:23:29 +0000 | [diff] [blame] | 1191 | } |
| 1192 | } |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 1193 | } |
| 1194 | |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1195 | /// ParseBaseClause - Parse the base-clause of a C++ class [C++ class.derived]. |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 1196 | /// |
| 1197 | /// base-clause : [C++ class.derived] |
| 1198 | /// ':' base-specifier-list |
| 1199 | /// base-specifier-list: |
| 1200 | /// base-specifier '...'[opt] |
| 1201 | /// base-specifier-list ',' base-specifier '...'[opt] |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 1202 | void Parser::ParseBaseClause(Decl *ClassDecl) { |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 1203 | assert(Tok.is(tok::colon) && "Not a base clause"); |
| 1204 | ConsumeToken(); |
| 1205 | |
Douglas Gregor | f8268ae | 2008-10-22 17:49:05 +0000 | [diff] [blame] | 1206 | // Build up an array of parsed base specifiers. |
John McCall | ca0408f | 2010-08-23 06:44:23 +0000 | [diff] [blame] | 1207 | llvm::SmallVector<CXXBaseSpecifier *, 8> BaseInfo; |
Douglas Gregor | f8268ae | 2008-10-22 17:49:05 +0000 | [diff] [blame] | 1208 | |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 1209 | while (true) { |
| 1210 | // Parse a base-specifier. |
Douglas Gregor | f8268ae | 2008-10-22 17:49:05 +0000 | [diff] [blame] | 1211 | BaseResult Result = ParseBaseSpecifier(ClassDecl); |
Douglas Gregor | 5ac8aff | 2009-01-26 22:44:13 +0000 | [diff] [blame] | 1212 | if (Result.isInvalid()) { |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 1213 | // Skip the rest of this base specifier, up until the comma or |
| 1214 | // opening brace. |
Douglas Gregor | f8268ae | 2008-10-22 17:49:05 +0000 | [diff] [blame] | 1215 | SkipUntil(tok::comma, tok::l_brace, true, true); |
| 1216 | } else { |
| 1217 | // Add this to our array of base specifiers. |
Douglas Gregor | 5ac8aff | 2009-01-26 22:44:13 +0000 | [diff] [blame] | 1218 | BaseInfo.push_back(Result.get()); |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 1219 | } |
| 1220 | |
| 1221 | // If the next token is a comma, consume it and keep reading |
| 1222 | // base-specifiers. |
| 1223 | if (Tok.isNot(tok::comma)) break; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1224 | |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 1225 | // Consume the comma. |
| 1226 | ConsumeToken(); |
| 1227 | } |
Douglas Gregor | f8268ae | 2008-10-22 17:49:05 +0000 | [diff] [blame] | 1228 | |
| 1229 | // Attach the base specifiers |
Jay Foad | beaaccd | 2009-05-21 09:52:38 +0000 | [diff] [blame] | 1230 | Actions.ActOnBaseSpecifiers(ClassDecl, BaseInfo.data(), BaseInfo.size()); |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 1231 | } |
| 1232 | |
| 1233 | /// ParseBaseSpecifier - Parse a C++ base-specifier. A base-specifier is |
| 1234 | /// one entry in the base class list of a class specifier, for example: |
| 1235 | /// class foo : public bar, virtual private baz { |
| 1236 | /// 'public bar' and 'virtual private baz' are each base-specifiers. |
| 1237 | /// |
| 1238 | /// base-specifier: [C++ class.derived] |
| 1239 | /// ::[opt] nested-name-specifier[opt] class-name |
| 1240 | /// 'virtual' access-specifier[opt] ::[opt] nested-name-specifier[opt] |
| 1241 | /// class-name |
| 1242 | /// access-specifier 'virtual'[opt] ::[opt] nested-name-specifier[opt] |
| 1243 | /// class-name |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 1244 | Parser::BaseResult Parser::ParseBaseSpecifier(Decl *ClassDecl) { |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 1245 | bool IsVirtual = false; |
| 1246 | SourceLocation StartLoc = Tok.getLocation(); |
| 1247 | |
| 1248 | // Parse the 'virtual' keyword. |
| 1249 | if (Tok.is(tok::kw_virtual)) { |
| 1250 | ConsumeToken(); |
| 1251 | IsVirtual = true; |
| 1252 | } |
| 1253 | |
| 1254 | // Parse an (optional) access specifier. |
| 1255 | AccessSpecifier Access = getAccessSpecifierIfPresent(); |
John McCall | 92f8831 | 2010-01-23 00:46:32 +0000 | [diff] [blame] | 1256 | if (Access != AS_none) |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 1257 | ConsumeToken(); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1258 | |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 1259 | // Parse the 'virtual' keyword (again!), in case it came after the |
| 1260 | // access specifier. |
| 1261 | if (Tok.is(tok::kw_virtual)) { |
| 1262 | SourceLocation VirtualLoc = ConsumeToken(); |
| 1263 | if (IsVirtual) { |
| 1264 | // Complain about duplicate 'virtual' |
Chris Lattner | 1ab3b96 | 2008-11-18 07:48:38 +0000 | [diff] [blame] | 1265 | Diag(VirtualLoc, diag::err_dup_virtual) |
Douglas Gregor | 849b243 | 2010-03-31 17:46:05 +0000 | [diff] [blame] | 1266 | << FixItHint::CreateRemoval(VirtualLoc); |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 1267 | } |
| 1268 | |
| 1269 | IsVirtual = true; |
| 1270 | } |
| 1271 | |
Argyrios Kyrtzidis | eb83ecd | 2008-11-08 16:45:02 +0000 | [diff] [blame] | 1272 | // Parse optional '::' and optional nested-name-specifier. |
| 1273 | CXXScopeSpec SS; |
John McCall | b3d8748 | 2010-08-24 05:47:05 +0000 | [diff] [blame] | 1274 | ParseOptionalCXXScopeSpecifier(SS, ParsedType(), /*EnteringContext=*/false); |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 1275 | |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 1276 | // The location of the base class itself. |
| 1277 | SourceLocation BaseLoc = Tok.getLocation(); |
Douglas Gregor | 42a552f | 2008-11-05 20:51:48 +0000 | [diff] [blame] | 1278 | |
| 1279 | // Parse the class-name. |
Douglas Gregor | 7f43d67 | 2009-02-25 23:52:28 +0000 | [diff] [blame] | 1280 | SourceLocation EndLocation; |
Douglas Gregor | 059101f | 2011-03-02 00:47:37 +0000 | [diff] [blame] | 1281 | TypeResult BaseType = ParseClassName(EndLocation, SS); |
Douglas Gregor | 31a19b6 | 2009-04-01 21:51:26 +0000 | [diff] [blame] | 1282 | if (BaseType.isInvalid()) |
Douglas Gregor | 42a552f | 2008-11-05 20:51:48 +0000 | [diff] [blame] | 1283 | return true; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1284 | |
Douglas Gregor | f90b27a | 2011-01-03 22:36:02 +0000 | [diff] [blame] | 1285 | // Parse the optional ellipsis (for a pack expansion). The ellipsis is |
| 1286 | // actually part of the base-specifier-list grammar productions, but we |
| 1287 | // parse it here for convenience. |
| 1288 | SourceLocation EllipsisLoc; |
| 1289 | if (Tok.is(tok::ellipsis)) |
| 1290 | EllipsisLoc = ConsumeToken(); |
| 1291 | |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1292 | // Find the complete source range for the base-specifier. |
Douglas Gregor | 7f43d67 | 2009-02-25 23:52:28 +0000 | [diff] [blame] | 1293 | SourceRange Range(StartLoc, EndLocation); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1294 | |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 1295 | // Notify semantic analysis that we have parsed a complete |
| 1296 | // base-specifier. |
Sebastian Redl | a55e52c | 2008-11-25 22:21:31 +0000 | [diff] [blame] | 1297 | return Actions.ActOnBaseSpecifier(ClassDecl, Range, IsVirtual, Access, |
Douglas Gregor | f90b27a | 2011-01-03 22:36:02 +0000 | [diff] [blame] | 1298 | BaseType.get(), BaseLoc, EllipsisLoc); |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 1299 | } |
| 1300 | |
| 1301 | /// getAccessSpecifierIfPresent - Determine whether the next token is |
| 1302 | /// a C++ access-specifier. |
| 1303 | /// |
| 1304 | /// access-specifier: [C++ class.derived] |
| 1305 | /// 'private' |
| 1306 | /// 'protected' |
| 1307 | /// 'public' |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1308 | AccessSpecifier Parser::getAccessSpecifierIfPresent() const { |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 1309 | switch (Tok.getKind()) { |
| 1310 | default: return AS_none; |
| 1311 | case tok::kw_private: return AS_private; |
| 1312 | case tok::kw_protected: return AS_protected; |
| 1313 | case tok::kw_public: return AS_public; |
| 1314 | } |
| 1315 | } |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1316 | |
Eli Friedman | d33133c | 2009-07-22 21:45:50 +0000 | [diff] [blame] | 1317 | void Parser::HandleMemberFunctionDefaultArgs(Declarator& DeclaratorInfo, |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 1318 | Decl *ThisDecl) { |
Eli Friedman | d33133c | 2009-07-22 21:45:50 +0000 | [diff] [blame] | 1319 | // We just declared a member function. If this member function |
| 1320 | // has any default arguments, we'll need to parse them later. |
| 1321 | LateParsedMethodDeclaration *LateMethod = 0; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1322 | DeclaratorChunk::FunctionTypeInfo &FTI |
Abramo Bagnara | 075f8f1 | 2010-12-10 16:29:40 +0000 | [diff] [blame] | 1323 | = DeclaratorInfo.getFunctionTypeInfo(); |
Eli Friedman | d33133c | 2009-07-22 21:45:50 +0000 | [diff] [blame] | 1324 | for (unsigned ParamIdx = 0; ParamIdx < FTI.NumArgs; ++ParamIdx) { |
| 1325 | if (LateMethod || FTI.ArgInfo[ParamIdx].DefaultArgTokens) { |
| 1326 | if (!LateMethod) { |
| 1327 | // Push this method onto the stack of late-parsed method |
| 1328 | // declarations. |
Douglas Gregor | d54eb44 | 2010-10-12 16:25:54 +0000 | [diff] [blame] | 1329 | LateMethod = new LateParsedMethodDeclaration(this, ThisDecl); |
| 1330 | getCurrentClass().LateParsedDeclarations.push_back(LateMethod); |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 1331 | LateMethod->TemplateScope = getCurScope()->isTemplateParamScope(); |
Eli Friedman | d33133c | 2009-07-22 21:45:50 +0000 | [diff] [blame] | 1332 | |
| 1333 | // Add all of the parameters prior to this one (they don't |
| 1334 | // have default arguments). |
| 1335 | LateMethod->DefaultArgs.reserve(FTI.NumArgs); |
| 1336 | for (unsigned I = 0; I < ParamIdx; ++I) |
| 1337 | LateMethod->DefaultArgs.push_back( |
Douglas Gregor | 8f8210c | 2010-03-02 01:29:43 +0000 | [diff] [blame] | 1338 | LateParsedDefaultArgument(FTI.ArgInfo[I].Param)); |
Eli Friedman | d33133c | 2009-07-22 21:45:50 +0000 | [diff] [blame] | 1339 | } |
| 1340 | |
| 1341 | // Add this parameter to the list of parameters (it or may |
| 1342 | // not have a default argument). |
| 1343 | LateMethod->DefaultArgs.push_back( |
| 1344 | LateParsedDefaultArgument(FTI.ArgInfo[ParamIdx].Param, |
| 1345 | FTI.ArgInfo[ParamIdx].DefaultArgTokens)); |
| 1346 | } |
| 1347 | } |
| 1348 | } |
| 1349 | |
Anders Carlsson | 1f3b6fd | 2011-01-16 23:56:42 +0000 | [diff] [blame] | 1350 | /// isCXX0XVirtSpecifier - Determine whether the next token is a C++0x |
| 1351 | /// virt-specifier. |
| 1352 | /// |
| 1353 | /// virt-specifier: |
| 1354 | /// override |
| 1355 | /// final |
Anders Carlsson | cc54d59 | 2011-01-22 16:56:46 +0000 | [diff] [blame] | 1356 | VirtSpecifiers::Specifier Parser::isCXX0XVirtSpecifier() const { |
Anders Carlsson | ce93a7c | 2011-01-22 23:01:49 +0000 | [diff] [blame] | 1357 | if (!getLang().CPlusPlus) |
Anders Carlsson | cc54d59 | 2011-01-22 16:56:46 +0000 | [diff] [blame] | 1358 | return VirtSpecifiers::VS_None; |
| 1359 | |
Anders Carlsson | b971dbd | 2011-01-17 03:05:47 +0000 | [diff] [blame] | 1360 | if (Tok.is(tok::identifier)) { |
| 1361 | IdentifierInfo *II = Tok.getIdentifierInfo(); |
Anders Carlsson | 1f3b6fd | 2011-01-16 23:56:42 +0000 | [diff] [blame] | 1362 | |
Anders Carlsson | 7eeb4ec | 2011-01-20 03:47:08 +0000 | [diff] [blame] | 1363 | // Initialize the contextual keywords. |
| 1364 | if (!Ident_final) { |
| 1365 | Ident_final = &PP.getIdentifierTable().get("final"); |
| 1366 | Ident_override = &PP.getIdentifierTable().get("override"); |
| 1367 | } |
| 1368 | |
Anders Carlsson | b971dbd | 2011-01-17 03:05:47 +0000 | [diff] [blame] | 1369 | if (II == Ident_override) |
| 1370 | return VirtSpecifiers::VS_Override; |
| 1371 | |
| 1372 | if (II == Ident_final) |
| 1373 | return VirtSpecifiers::VS_Final; |
| 1374 | } |
| 1375 | |
| 1376 | return VirtSpecifiers::VS_None; |
Anders Carlsson | 1f3b6fd | 2011-01-16 23:56:42 +0000 | [diff] [blame] | 1377 | } |
| 1378 | |
| 1379 | /// ParseOptionalCXX0XVirtSpecifierSeq - Parse a virt-specifier-seq. |
| 1380 | /// |
| 1381 | /// virt-specifier-seq: |
| 1382 | /// virt-specifier |
| 1383 | /// virt-specifier-seq virt-specifier |
Anders Carlsson | b971dbd | 2011-01-17 03:05:47 +0000 | [diff] [blame] | 1384 | void Parser::ParseOptionalCXX0XVirtSpecifierSeq(VirtSpecifiers &VS) { |
Anders Carlsson | b971dbd | 2011-01-17 03:05:47 +0000 | [diff] [blame] | 1385 | while (true) { |
Anders Carlsson | cc54d59 | 2011-01-22 16:56:46 +0000 | [diff] [blame] | 1386 | VirtSpecifiers::Specifier Specifier = isCXX0XVirtSpecifier(); |
Anders Carlsson | b971dbd | 2011-01-17 03:05:47 +0000 | [diff] [blame] | 1387 | if (Specifier == VirtSpecifiers::VS_None) |
| 1388 | return; |
| 1389 | |
| 1390 | // C++ [class.mem]p8: |
| 1391 | // A virt-specifier-seq shall contain at most one of each virt-specifier. |
Anders Carlsson | cc54d59 | 2011-01-22 16:56:46 +0000 | [diff] [blame] | 1392 | const char *PrevSpec = 0; |
Anders Carlsson | 46127a9 | 2011-01-22 15:58:16 +0000 | [diff] [blame] | 1393 | if (VS.SetSpecifier(Specifier, Tok.getLocation(), PrevSpec)) |
Anders Carlsson | b971dbd | 2011-01-17 03:05:47 +0000 | [diff] [blame] | 1394 | Diag(Tok.getLocation(), diag::err_duplicate_virt_specifier) |
| 1395 | << PrevSpec |
| 1396 | << FixItHint::CreateRemoval(Tok.getLocation()); |
| 1397 | |
Anders Carlsson | ce93a7c | 2011-01-22 23:01:49 +0000 | [diff] [blame] | 1398 | if (!getLang().CPlusPlus0x) |
| 1399 | Diag(Tok.getLocation(), diag::ext_override_control_keyword) |
| 1400 | << VirtSpecifiers::getSpecifierName(Specifier); |
Anders Carlsson | b971dbd | 2011-01-17 03:05:47 +0000 | [diff] [blame] | 1401 | ConsumeToken(); |
| 1402 | } |
Anders Carlsson | 1f3b6fd | 2011-01-16 23:56:42 +0000 | [diff] [blame] | 1403 | } |
| 1404 | |
Anders Carlsson | 8a29ba0 | 2011-03-25 14:53:29 +0000 | [diff] [blame] | 1405 | /// isCXX0XFinalKeyword - Determine whether the next token is a C++0x |
| 1406 | /// contextual 'final' keyword. |
| 1407 | bool Parser::isCXX0XFinalKeyword() const { |
Anders Carlsson | ce93a7c | 2011-01-22 23:01:49 +0000 | [diff] [blame] | 1408 | if (!getLang().CPlusPlus) |
Anders Carlsson | 8a29ba0 | 2011-03-25 14:53:29 +0000 | [diff] [blame] | 1409 | return false; |
Anders Carlsson | cc54d59 | 2011-01-22 16:56:46 +0000 | [diff] [blame] | 1410 | |
Anders Carlsson | 8a29ba0 | 2011-03-25 14:53:29 +0000 | [diff] [blame] | 1411 | if (!Tok.is(tok::identifier)) |
| 1412 | return false; |
Anders Carlsson | cc54d59 | 2011-01-22 16:56:46 +0000 | [diff] [blame] | 1413 | |
Anders Carlsson | 8a29ba0 | 2011-03-25 14:53:29 +0000 | [diff] [blame] | 1414 | // Initialize the contextual keywords. |
| 1415 | if (!Ident_final) { |
| 1416 | Ident_final = &PP.getIdentifierTable().get("final"); |
| 1417 | Ident_override = &PP.getIdentifierTable().get("override"); |
| 1418 | } |
Anders Carlsson | cc54d59 | 2011-01-22 16:56:46 +0000 | [diff] [blame] | 1419 | |
Anders Carlsson | 8a29ba0 | 2011-03-25 14:53:29 +0000 | [diff] [blame] | 1420 | return Tok.getIdentifierInfo() == Ident_final; |
Anders Carlsson | cc54d59 | 2011-01-22 16:56:46 +0000 | [diff] [blame] | 1421 | } |
| 1422 | |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1423 | /// ParseCXXClassMemberDeclaration - Parse a C++ class member declaration. |
| 1424 | /// |
| 1425 | /// member-declaration: |
| 1426 | /// decl-specifier-seq[opt] member-declarator-list[opt] ';' |
| 1427 | /// function-definition ';'[opt] |
| 1428 | /// ::[opt] nested-name-specifier template[opt] unqualified-id ';'[TODO] |
| 1429 | /// using-declaration [TODO] |
Anders Carlsson | 511d7ab | 2009-03-11 16:27:10 +0000 | [diff] [blame] | 1430 | /// [C++0x] static_assert-declaration |
Anders Carlsson | 5aeccdb | 2009-03-26 00:52:18 +0000 | [diff] [blame] | 1431 | /// template-declaration |
Chris Lattner | bc8d564 | 2008-12-18 01:12:00 +0000 | [diff] [blame] | 1432 | /// [GNU] '__extension__' member-declaration |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1433 | /// |
| 1434 | /// member-declarator-list: |
| 1435 | /// member-declarator |
| 1436 | /// member-declarator-list ',' member-declarator |
| 1437 | /// |
| 1438 | /// member-declarator: |
Anders Carlsson | 1f3b6fd | 2011-01-16 23:56:42 +0000 | [diff] [blame] | 1439 | /// declarator virt-specifier-seq[opt] pure-specifier[opt] |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1440 | /// declarator constant-initializer[opt] |
| 1441 | /// identifier[opt] ':' constant-expression |
| 1442 | /// |
Anders Carlsson | 1f3b6fd | 2011-01-16 23:56:42 +0000 | [diff] [blame] | 1443 | /// virt-specifier-seq: |
| 1444 | /// virt-specifier |
| 1445 | /// virt-specifier-seq virt-specifier |
| 1446 | /// |
| 1447 | /// virt-specifier: |
| 1448 | /// override |
| 1449 | /// final |
| 1450 | /// new |
| 1451 | /// |
Sebastian Redl | e2b6833 | 2009-04-12 17:16:29 +0000 | [diff] [blame] | 1452 | /// pure-specifier: |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1453 | /// '= 0' |
| 1454 | /// |
| 1455 | /// constant-initializer: |
| 1456 | /// '=' constant-expression |
| 1457 | /// |
Douglas Gregor | 37b372b | 2009-08-20 22:52:58 +0000 | [diff] [blame] | 1458 | void Parser::ParseCXXClassMemberDeclaration(AccessSpecifier AS, |
John McCall | c9068d7 | 2010-07-16 08:13:16 +0000 | [diff] [blame] | 1459 | const ParsedTemplateInfo &TemplateInfo, |
| 1460 | ParsingDeclRAIIObject *TemplateDiags) { |
Douglas Gregor | 8a9013d | 2011-04-14 17:21:19 +0000 | [diff] [blame] | 1461 | if (Tok.is(tok::at)) { |
| 1462 | if (getLang().ObjC1 && NextToken().isObjCAtKeyword(tok::objc_defs)) |
| 1463 | Diag(Tok, diag::err_at_defs_cxx); |
| 1464 | else |
| 1465 | Diag(Tok, diag::err_at_in_class); |
| 1466 | |
| 1467 | ConsumeToken(); |
| 1468 | SkipUntil(tok::r_brace); |
| 1469 | return; |
| 1470 | } |
| 1471 | |
John McCall | 60fa3cf | 2009-12-11 02:10:03 +0000 | [diff] [blame] | 1472 | // Access declarations. |
| 1473 | if (!TemplateInfo.Kind && |
| 1474 | (Tok.is(tok::identifier) || Tok.is(tok::coloncolon)) && |
John McCall | 9ba6166 | 2010-02-26 08:45:28 +0000 | [diff] [blame] | 1475 | !TryAnnotateCXXScopeToken() && |
John McCall | 60fa3cf | 2009-12-11 02:10:03 +0000 | [diff] [blame] | 1476 | Tok.is(tok::annot_cxxscope)) { |
| 1477 | bool isAccessDecl = false; |
| 1478 | if (NextToken().is(tok::identifier)) |
| 1479 | isAccessDecl = GetLookAheadToken(2).is(tok::semi); |
| 1480 | else |
| 1481 | isAccessDecl = NextToken().is(tok::kw_operator); |
| 1482 | |
| 1483 | if (isAccessDecl) { |
| 1484 | // Collect the scope specifier token we annotated earlier. |
| 1485 | CXXScopeSpec SS; |
John McCall | b3d8748 | 2010-08-24 05:47:05 +0000 | [diff] [blame] | 1486 | ParseOptionalCXXScopeSpecifier(SS, ParsedType(), false); |
John McCall | 60fa3cf | 2009-12-11 02:10:03 +0000 | [diff] [blame] | 1487 | |
| 1488 | // Try to parse an unqualified-id. |
| 1489 | UnqualifiedId Name; |
John McCall | b3d8748 | 2010-08-24 05:47:05 +0000 | [diff] [blame] | 1490 | if (ParseUnqualifiedId(SS, false, true, true, ParsedType(), Name)) { |
John McCall | 60fa3cf | 2009-12-11 02:10:03 +0000 | [diff] [blame] | 1491 | SkipUntil(tok::semi); |
| 1492 | return; |
| 1493 | } |
| 1494 | |
| 1495 | // TODO: recover from mistakenly-qualified operator declarations. |
| 1496 | if (ExpectAndConsume(tok::semi, |
| 1497 | diag::err_expected_semi_after, |
| 1498 | "access declaration", |
| 1499 | tok::semi)) |
| 1500 | return; |
| 1501 | |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 1502 | Actions.ActOnUsingDeclaration(getCurScope(), AS, |
John McCall | 60fa3cf | 2009-12-11 02:10:03 +0000 | [diff] [blame] | 1503 | false, SourceLocation(), |
| 1504 | SS, Name, |
| 1505 | /* AttrList */ 0, |
| 1506 | /* IsTypeName */ false, |
| 1507 | SourceLocation()); |
| 1508 | return; |
| 1509 | } |
| 1510 | } |
| 1511 | |
Anders Carlsson | 511d7ab | 2009-03-11 16:27:10 +0000 | [diff] [blame] | 1512 | // static_assert-declaration |
Peter Collingbourne | c6eb44b | 2011-04-15 00:35:57 +0000 | [diff] [blame] | 1513 | if (Tok.is(tok::kw_static_assert) || Tok.is(tok::kw__Static_assert)) { |
Douglas Gregor | 37b372b | 2009-08-20 22:52:58 +0000 | [diff] [blame] | 1514 | // FIXME: Check for templates |
Chris Lattner | 97144fc | 2009-04-02 04:16:50 +0000 | [diff] [blame] | 1515 | SourceLocation DeclEnd; |
| 1516 | ParseStaticAssertDeclaration(DeclEnd); |
Chris Lattner | 682bf92 | 2009-03-29 16:50:03 +0000 | [diff] [blame] | 1517 | return; |
| 1518 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1519 | |
Chris Lattner | 682bf92 | 2009-03-29 16:50:03 +0000 | [diff] [blame] | 1520 | if (Tok.is(tok::kw_template)) { |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1521 | assert(!TemplateInfo.TemplateParams && |
Douglas Gregor | 37b372b | 2009-08-20 22:52:58 +0000 | [diff] [blame] | 1522 | "Nested template improperly parsed?"); |
Chris Lattner | 97144fc | 2009-04-02 04:16:50 +0000 | [diff] [blame] | 1523 | SourceLocation DeclEnd; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1524 | ParseDeclarationStartingWithTemplate(Declarator::MemberContext, DeclEnd, |
Douglas Gregor | 4d9a16f | 2009-05-12 23:25:50 +0000 | [diff] [blame] | 1525 | AS); |
Chris Lattner | 682bf92 | 2009-03-29 16:50:03 +0000 | [diff] [blame] | 1526 | return; |
| 1527 | } |
Anders Carlsson | 5aeccdb | 2009-03-26 00:52:18 +0000 | [diff] [blame] | 1528 | |
Chris Lattner | bc8d564 | 2008-12-18 01:12:00 +0000 | [diff] [blame] | 1529 | // Handle: member-declaration ::= '__extension__' member-declaration |
| 1530 | if (Tok.is(tok::kw___extension__)) { |
| 1531 | // __extension__ silences extension warnings in the subexpression. |
| 1532 | ExtensionRAIIObject O(Diags); // Use RAII to do this. |
| 1533 | ConsumeToken(); |
John McCall | c9068d7 | 2010-07-16 08:13:16 +0000 | [diff] [blame] | 1534 | return ParseCXXClassMemberDeclaration(AS, TemplateInfo, TemplateDiags); |
Chris Lattner | bc8d564 | 2008-12-18 01:12:00 +0000 | [diff] [blame] | 1535 | } |
Douglas Gregor | 9cfbe48 | 2009-06-20 00:51:54 +0000 | [diff] [blame] | 1536 | |
Chris Lattner | 4ed5d91 | 2010-02-02 01:23:29 +0000 | [diff] [blame] | 1537 | // Don't parse FOO:BAR as if it were a typo for FOO::BAR, in this context it |
| 1538 | // is a bitfield. |
Chris Lattner | a1efc8c | 2009-12-10 01:59:24 +0000 | [diff] [blame] | 1539 | ColonProtectionRAIIObject X(*this); |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 1540 | |
John McCall | 0b7e678 | 2011-03-24 11:26:52 +0000 | [diff] [blame] | 1541 | ParsedAttributesWithRange attrs(AttrFactory); |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 1542 | // Optional C++0x attribute-specifier |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 1543 | MaybeParseCXX0XAttributes(attrs); |
| 1544 | MaybeParseMicrosoftAttributes(attrs); |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 1545 | |
Douglas Gregor | 9cfbe48 | 2009-06-20 00:51:54 +0000 | [diff] [blame] | 1546 | if (Tok.is(tok::kw_using)) { |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 1547 | ProhibitAttributes(attrs); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1548 | |
Douglas Gregor | 9cfbe48 | 2009-06-20 00:51:54 +0000 | [diff] [blame] | 1549 | // Eat 'using'. |
| 1550 | SourceLocation UsingLoc = ConsumeToken(); |
| 1551 | |
| 1552 | if (Tok.is(tok::kw_namespace)) { |
| 1553 | Diag(UsingLoc, diag::err_using_namespace_in_class); |
| 1554 | SkipUntil(tok::semi, true, true); |
Chris Lattner | ae50d50 | 2010-02-02 00:43:15 +0000 | [diff] [blame] | 1555 | } else { |
Douglas Gregor | 9cfbe48 | 2009-06-20 00:51:54 +0000 | [diff] [blame] | 1556 | SourceLocation DeclEnd; |
Richard Smith | 3e4c6c4 | 2011-05-05 21:57:07 +0000 | [diff] [blame] | 1557 | // Otherwise, it must be a using-declaration or an alias-declaration. |
John McCall | 78b8105 | 2010-11-10 02:40:36 +0000 | [diff] [blame] | 1558 | ParseUsingDeclaration(Declarator::MemberContext, TemplateInfo, |
| 1559 | UsingLoc, DeclEnd, AS); |
Douglas Gregor | 9cfbe48 | 2009-06-20 00:51:54 +0000 | [diff] [blame] | 1560 | } |
| 1561 | return; |
| 1562 | } |
| 1563 | |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1564 | // decl-specifier-seq: |
| 1565 | // Parse the common declaration-specifiers piece. |
John McCall | c9068d7 | 2010-07-16 08:13:16 +0000 | [diff] [blame] | 1566 | ParsingDeclSpec DS(*this, TemplateDiags); |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 1567 | DS.takeAttributesFrom(attrs); |
Douglas Gregor | 37b372b | 2009-08-20 22:52:58 +0000 | [diff] [blame] | 1568 | ParseDeclarationSpecifiers(DS, TemplateInfo, AS, DSC_class); |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1569 | |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 1570 | MultiTemplateParamsArg TemplateParams(Actions, |
John McCall | dd4a3b0 | 2009-09-16 22:47:08 +0000 | [diff] [blame] | 1571 | TemplateInfo.TemplateParams? TemplateInfo.TemplateParams->data() : 0, |
| 1572 | TemplateInfo.TemplateParams? TemplateInfo.TemplateParams->size() : 0); |
| 1573 | |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1574 | if (Tok.is(tok::semi)) { |
| 1575 | ConsumeToken(); |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 1576 | Decl *TheDecl = |
Chandler Carruth | 0f4be74 | 2011-05-03 18:35:10 +0000 | [diff] [blame] | 1577 | Actions.ParsedFreeStandingDeclSpec(getCurScope(), AS, DS, TemplateParams); |
John McCall | c9068d7 | 2010-07-16 08:13:16 +0000 | [diff] [blame] | 1578 | DS.complete(TheDecl); |
John McCall | 67d1a67 | 2009-08-06 02:15:43 +0000 | [diff] [blame] | 1579 | return; |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1580 | } |
Argyrios Kyrtzidis | 0795232 | 2008-07-01 10:37:29 +0000 | [diff] [blame] | 1581 | |
John McCall | 54abf7d | 2009-11-04 02:18:39 +0000 | [diff] [blame] | 1582 | ParsingDeclarator DeclaratorInfo(*this, DS, Declarator::MemberContext); |
Nico Weber | 4867347 | 2011-01-28 06:07:34 +0000 | [diff] [blame] | 1583 | VirtSpecifiers VS; |
Francois Pichet | 6a24747 | 2011-05-11 02:14:46 +0000 | [diff] [blame^] | 1584 | ExprResult Init; |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1585 | |
Argyrios Kyrtzidis | 3a9fdb4 | 2008-06-28 08:10:48 +0000 | [diff] [blame] | 1586 | if (Tok.isNot(tok::colon)) { |
Chris Lattner | a1efc8c | 2009-12-10 01:59:24 +0000 | [diff] [blame] | 1587 | // Don't parse FOO:BAR as if it were a typo for FOO::BAR. |
| 1588 | ColonProtectionRAIIObject X(*this); |
| 1589 | |
Argyrios Kyrtzidis | 3a9fdb4 | 2008-06-28 08:10:48 +0000 | [diff] [blame] | 1590 | // Parse the first declarator. |
| 1591 | ParseDeclarator(DeclaratorInfo); |
| 1592 | // Error parsing the declarator? |
Douglas Gregor | 10bd368 | 2008-11-17 22:58:34 +0000 | [diff] [blame] | 1593 | if (!DeclaratorInfo.hasName()) { |
Argyrios Kyrtzidis | 3a9fdb4 | 2008-06-28 08:10:48 +0000 | [diff] [blame] | 1594 | // If so, skip until the semi-colon or a }. |
Sebastian Redl | d941fa4 | 2011-04-24 16:27:48 +0000 | [diff] [blame] | 1595 | SkipUntil(tok::r_brace, true, true); |
Argyrios Kyrtzidis | 3a9fdb4 | 2008-06-28 08:10:48 +0000 | [diff] [blame] | 1596 | if (Tok.is(tok::semi)) |
| 1597 | ConsumeToken(); |
Chris Lattner | 682bf92 | 2009-03-29 16:50:03 +0000 | [diff] [blame] | 1598 | return; |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1599 | } |
| 1600 | |
Nico Weber | 4867347 | 2011-01-28 06:07:34 +0000 | [diff] [blame] | 1601 | ParseOptionalCXX0XVirtSpecifierSeq(VS); |
| 1602 | |
John Thompson | 1b2fc0f | 2009-11-25 22:58:06 +0000 | [diff] [blame] | 1603 | // If attributes exist after the declarator, but before an '{', parse them. |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 1604 | MaybeParseGNUAttributes(DeclaratorInfo); |
John Thompson | 1b2fc0f | 2009-11-25 22:58:06 +0000 | [diff] [blame] | 1605 | |
Francois Pichet | 6a24747 | 2011-05-11 02:14:46 +0000 | [diff] [blame^] | 1606 | // MSVC permits pure specifier on inline functions declared at class scope. |
| 1607 | // Hence check for =0 before checking for function definition. |
| 1608 | if (getLang().Microsoft && Tok.is(tok::equal) && |
| 1609 | DeclaratorInfo.isFunctionDeclarator() && |
| 1610 | NextToken().is(tok::numeric_constant)) { |
| 1611 | ConsumeToken(); |
| 1612 | Init = ParseInitializer(); |
| 1613 | if (Init.isInvalid()) |
| 1614 | SkipUntil(tok::comma, true, true); |
| 1615 | } |
| 1616 | |
Argyrios Kyrtzidis | 3a9fdb4 | 2008-06-28 08:10:48 +0000 | [diff] [blame] | 1617 | // function-definition: |
Douglas Gregor | 7ad8390 | 2008-11-05 04:29:56 +0000 | [diff] [blame] | 1618 | if (Tok.is(tok::l_brace) |
Sebastian Redl | d3a413d | 2009-04-26 20:35:05 +0000 | [diff] [blame] | 1619 | || (DeclaratorInfo.isFunctionDeclarator() && |
| 1620 | (Tok.is(tok::colon) || Tok.is(tok::kw_try)))) { |
Argyrios Kyrtzidis | 3a9fdb4 | 2008-06-28 08:10:48 +0000 | [diff] [blame] | 1621 | if (!DeclaratorInfo.isFunctionDeclarator()) { |
| 1622 | Diag(Tok, diag::err_func_def_no_params); |
| 1623 | ConsumeBrace(); |
| 1624 | SkipUntil(tok::r_brace, true); |
Douglas Gregor | 9ea416e | 2011-01-19 16:41:58 +0000 | [diff] [blame] | 1625 | |
| 1626 | // Consume the optional ';' |
| 1627 | if (Tok.is(tok::semi)) |
| 1628 | ConsumeToken(); |
Chris Lattner | 682bf92 | 2009-03-29 16:50:03 +0000 | [diff] [blame] | 1629 | return; |
Argyrios Kyrtzidis | 3a9fdb4 | 2008-06-28 08:10:48 +0000 | [diff] [blame] | 1630 | } |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1631 | |
Argyrios Kyrtzidis | 3a9fdb4 | 2008-06-28 08:10:48 +0000 | [diff] [blame] | 1632 | if (DS.getStorageClassSpec() == DeclSpec::SCS_typedef) { |
| 1633 | Diag(Tok, diag::err_function_declared_typedef); |
| 1634 | // This recovery skips the entire function body. It would be nice |
| 1635 | // to simply call ParseCXXInlineMethodDef() below, however Sema |
| 1636 | // assumes the declarator represents a function, not a typedef. |
| 1637 | ConsumeBrace(); |
| 1638 | SkipUntil(tok::r_brace, true); |
Douglas Gregor | 9ea416e | 2011-01-19 16:41:58 +0000 | [diff] [blame] | 1639 | |
| 1640 | // Consume the optional ';' |
| 1641 | if (Tok.is(tok::semi)) |
| 1642 | ConsumeToken(); |
Chris Lattner | 682bf92 | 2009-03-29 16:50:03 +0000 | [diff] [blame] | 1643 | return; |
Argyrios Kyrtzidis | 3a9fdb4 | 2008-06-28 08:10:48 +0000 | [diff] [blame] | 1644 | } |
| 1645 | |
Francois Pichet | 6a24747 | 2011-05-11 02:14:46 +0000 | [diff] [blame^] | 1646 | ParseCXXInlineMethodDef(AS, DeclaratorInfo, TemplateInfo, VS, Init); |
Douglas Gregor | 9ea416e | 2011-01-19 16:41:58 +0000 | [diff] [blame] | 1647 | // Consume the optional ';' |
| 1648 | if (Tok.is(tok::semi)) |
| 1649 | ConsumeToken(); |
| 1650 | |
Chris Lattner | 682bf92 | 2009-03-29 16:50:03 +0000 | [diff] [blame] | 1651 | return; |
Argyrios Kyrtzidis | 3a9fdb4 | 2008-06-28 08:10:48 +0000 | [diff] [blame] | 1652 | } |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1653 | } |
| 1654 | |
| 1655 | // member-declarator-list: |
| 1656 | // member-declarator |
| 1657 | // member-declarator-list ',' member-declarator |
| 1658 | |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 1659 | llvm::SmallVector<Decl *, 8> DeclsInGroup; |
John McCall | 60d7b3a | 2010-08-24 06:29:42 +0000 | [diff] [blame] | 1660 | ExprResult BitfieldSize; |
Sebastian Redl | e2b6833 | 2009-04-12 17:16:29 +0000 | [diff] [blame] | 1661 | bool Deleted = false; |
Sean Hunt | bb85f8e | 2011-05-06 21:24:28 +0000 | [diff] [blame] | 1662 | SourceLocation DefaultLoc; |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1663 | |
| 1664 | while (1) { |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1665 | // member-declarator: |
| 1666 | // declarator pure-specifier[opt] |
| 1667 | // declarator constant-initializer[opt] |
| 1668 | // identifier[opt] ':' constant-expression |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1669 | if (Tok.is(tok::colon)) { |
| 1670 | ConsumeToken(); |
Sebastian Redl | 0e9eabc | 2008-12-09 13:15:23 +0000 | [diff] [blame] | 1671 | BitfieldSize = ParseConstantExpression(); |
| 1672 | if (BitfieldSize.isInvalid()) |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1673 | SkipUntil(tok::comma, true, true); |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1674 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1675 | |
Anders Carlsson | b971dbd | 2011-01-17 03:05:47 +0000 | [diff] [blame] | 1676 | ParseOptionalCXX0XVirtSpecifierSeq(VS); |
Anders Carlsson | 1f3b6fd | 2011-01-16 23:56:42 +0000 | [diff] [blame] | 1677 | |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1678 | // pure-specifier: |
| 1679 | // '= 0' |
| 1680 | // |
| 1681 | // constant-initializer: |
| 1682 | // '=' constant-expression |
Sebastian Redl | e2b6833 | 2009-04-12 17:16:29 +0000 | [diff] [blame] | 1683 | // |
| 1684 | // defaulted/deleted function-definition: |
| 1685 | // '=' 'default' [TODO] |
| 1686 | // '=' 'delete' |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1687 | if (Tok.is(tok::equal)) { |
| 1688 | ConsumeToken(); |
Anders Carlsson | 37bf9d2 | 2010-09-24 21:25:25 +0000 | [diff] [blame] | 1689 | if (Tok.is(tok::kw_delete)) { |
| 1690 | if (!getLang().CPlusPlus0x) |
| 1691 | Diag(Tok, diag::warn_deleted_function_accepted_as_extension); |
Sebastian Redl | e2b6833 | 2009-04-12 17:16:29 +0000 | [diff] [blame] | 1692 | ConsumeToken(); |
| 1693 | Deleted = true; |
Sean Hunt | fe2695e | 2011-05-06 01:42:00 +0000 | [diff] [blame] | 1694 | } else if (Tok.is(tok::kw_default)) { |
| 1695 | if (!getLang().CPlusPlus0x) |
| 1696 | Diag(Tok, diag::warn_defaulted_function_accepted_as_extension); |
Sean Hunt | bb85f8e | 2011-05-06 21:24:28 +0000 | [diff] [blame] | 1697 | DefaultLoc = ConsumeToken(); |
Sebastian Redl | e2b6833 | 2009-04-12 17:16:29 +0000 | [diff] [blame] | 1698 | } else { |
| 1699 | Init = ParseInitializer(); |
| 1700 | if (Init.isInvalid()) |
| 1701 | SkipUntil(tok::comma, true, true); |
| 1702 | } |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1703 | } |
| 1704 | |
Chris Lattner | e656325 | 2010-06-13 05:34:18 +0000 | [diff] [blame] | 1705 | // If a simple-asm-expr is present, parse it. |
| 1706 | if (Tok.is(tok::kw_asm)) { |
| 1707 | SourceLocation Loc; |
John McCall | 60d7b3a | 2010-08-24 06:29:42 +0000 | [diff] [blame] | 1708 | ExprResult AsmLabel(ParseSimpleAsm(&Loc)); |
Chris Lattner | e656325 | 2010-06-13 05:34:18 +0000 | [diff] [blame] | 1709 | if (AsmLabel.isInvalid()) |
| 1710 | SkipUntil(tok::comma, true, true); |
| 1711 | |
| 1712 | DeclaratorInfo.setAsmLabel(AsmLabel.release()); |
| 1713 | DeclaratorInfo.SetRangeEnd(Loc); |
| 1714 | } |
| 1715 | |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1716 | // If attributes exist after the declarator, parse them. |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 1717 | MaybeParseGNUAttributes(DeclaratorInfo); |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1718 | |
Argyrios Kyrtzidis | 0795232 | 2008-07-01 10:37:29 +0000 | [diff] [blame] | 1719 | // NOTE: If Sema is the Action module and declarator is an instance field, |
Chris Lattner | 682bf92 | 2009-03-29 16:50:03 +0000 | [diff] [blame] | 1720 | // this call will *not* return the created decl; It will return null. |
Argyrios Kyrtzidis | 0795232 | 2008-07-01 10:37:29 +0000 | [diff] [blame] | 1721 | // See Sema::ActOnCXXMemberDeclarator for details. |
John McCall | 67d1a67 | 2009-08-06 02:15:43 +0000 | [diff] [blame] | 1722 | |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 1723 | Decl *ThisDecl = 0; |
John McCall | 67d1a67 | 2009-08-06 02:15:43 +0000 | [diff] [blame] | 1724 | if (DS.isFriendSpecified()) { |
Sean Hunt | bb85f8e | 2011-05-06 21:24:28 +0000 | [diff] [blame] | 1725 | if (DefaultLoc.isValid()) |
| 1726 | Diag(DefaultLoc, diag::err_default_special_members); |
Sean Hunt | fe2695e | 2011-05-06 01:42:00 +0000 | [diff] [blame] | 1727 | |
John McCall | bbbcdd9 | 2009-09-11 21:02:39 +0000 | [diff] [blame] | 1728 | // TODO: handle initializers, bitfields, 'delete' |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 1729 | ThisDecl = Actions.ActOnFriendFunctionDecl(getCurScope(), DeclaratorInfo, |
John McCall | bbbcdd9 | 2009-09-11 21:02:39 +0000 | [diff] [blame] | 1730 | /*IsDefinition*/ false, |
| 1731 | move(TemplateParams)); |
Douglas Gregor | 37b372b | 2009-08-20 22:52:58 +0000 | [diff] [blame] | 1732 | } else { |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 1733 | ThisDecl = Actions.ActOnCXXMemberDeclarator(getCurScope(), AS, |
John McCall | 67d1a67 | 2009-08-06 02:15:43 +0000 | [diff] [blame] | 1734 | DeclaratorInfo, |
Douglas Gregor | 37b372b | 2009-08-20 22:52:58 +0000 | [diff] [blame] | 1735 | move(TemplateParams), |
John McCall | 67d1a67 | 2009-08-06 02:15:43 +0000 | [diff] [blame] | 1736 | BitfieldSize.release(), |
Anders Carlsson | 69a8735 | 2011-01-20 03:57:25 +0000 | [diff] [blame] | 1737 | VS, Init.release(), |
Sebastian Redl | d1a7846 | 2009-11-24 23:38:44 +0000 | [diff] [blame] | 1738 | /*IsDefinition*/Deleted, |
Sean Hunt | bb85f8e | 2011-05-06 21:24:28 +0000 | [diff] [blame] | 1739 | Deleted, DefaultLoc); |
Douglas Gregor | 37b372b | 2009-08-20 22:52:58 +0000 | [diff] [blame] | 1740 | } |
Chris Lattner | 682bf92 | 2009-03-29 16:50:03 +0000 | [diff] [blame] | 1741 | if (ThisDecl) |
| 1742 | DeclsInGroup.push_back(ThisDecl); |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1743 | |
Douglas Gregor | 72b505b | 2008-12-16 21:30:33 +0000 | [diff] [blame] | 1744 | if (DeclaratorInfo.isFunctionDeclarator() && |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1745 | DeclaratorInfo.getDeclSpec().getStorageClassSpec() |
Douglas Gregor | 72b505b | 2008-12-16 21:30:33 +0000 | [diff] [blame] | 1746 | != DeclSpec::SCS_typedef) { |
Eli Friedman | d33133c | 2009-07-22 21:45:50 +0000 | [diff] [blame] | 1747 | HandleMemberFunctionDefaultArgs(DeclaratorInfo, ThisDecl); |
Douglas Gregor | 72b505b | 2008-12-16 21:30:33 +0000 | [diff] [blame] | 1748 | } |
| 1749 | |
John McCall | 54abf7d | 2009-11-04 02:18:39 +0000 | [diff] [blame] | 1750 | DeclaratorInfo.complete(ThisDecl); |
| 1751 | |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1752 | // If we don't have a comma, it is either the end of the list (a ';') |
| 1753 | // or an error, bail out. |
| 1754 | if (Tok.isNot(tok::comma)) |
| 1755 | break; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1756 | |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1757 | // Consume the comma. |
| 1758 | ConsumeToken(); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1759 | |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1760 | // Parse the next declarator. |
| 1761 | DeclaratorInfo.clear(); |
Nico Weber | 4867347 | 2011-01-28 06:07:34 +0000 | [diff] [blame] | 1762 | VS.clear(); |
Sebastian Redl | 15faa7f | 2008-12-09 20:22:58 +0000 | [diff] [blame] | 1763 | BitfieldSize = 0; |
| 1764 | Init = 0; |
Sebastian Redl | e2b6833 | 2009-04-12 17:16:29 +0000 | [diff] [blame] | 1765 | Deleted = false; |
Sean Hunt | bb85f8e | 2011-05-06 21:24:28 +0000 | [diff] [blame] | 1766 | DefaultLoc = SourceLocation(); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1767 | |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1768 | // Attributes are only allowed on the second declarator. |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 1769 | MaybeParseGNUAttributes(DeclaratorInfo); |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1770 | |
Argyrios Kyrtzidis | 3a9fdb4 | 2008-06-28 08:10:48 +0000 | [diff] [blame] | 1771 | if (Tok.isNot(tok::colon)) |
| 1772 | ParseDeclarator(DeclaratorInfo); |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1773 | } |
| 1774 | |
Chris Lattner | ae50d50 | 2010-02-02 00:43:15 +0000 | [diff] [blame] | 1775 | if (ExpectAndConsume(tok::semi, diag::err_expected_semi_decl_list)) { |
| 1776 | // Skip to end of block or statement. |
| 1777 | SkipUntil(tok::r_brace, true, true); |
| 1778 | // If we stopped at a ';', eat it. |
| 1779 | if (Tok.is(tok::semi)) ConsumeToken(); |
Chris Lattner | 682bf92 | 2009-03-29 16:50:03 +0000 | [diff] [blame] | 1780 | return; |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1781 | } |
| 1782 | |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 1783 | Actions.FinalizeDeclaratorGroup(getCurScope(), DS, DeclsInGroup.data(), |
Chris Lattner | ae50d50 | 2010-02-02 00:43:15 +0000 | [diff] [blame] | 1784 | DeclsInGroup.size()); |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1785 | } |
| 1786 | |
| 1787 | /// ParseCXXMemberSpecification - Parse the class definition. |
| 1788 | /// |
| 1789 | /// member-specification: |
| 1790 | /// member-declaration member-specification[opt] |
| 1791 | /// access-specifier ':' member-specification[opt] |
| 1792 | /// |
| 1793 | void Parser::ParseCXXMemberSpecification(SourceLocation RecordLoc, |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 1794 | unsigned TagType, Decl *TagDecl) { |
Sanjiv Gupta | 31fc07d | 2008-10-31 09:52:39 +0000 | [diff] [blame] | 1795 | assert((TagType == DeclSpec::TST_struct || |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1796 | TagType == DeclSpec::TST_union || |
Sanjiv Gupta | 31fc07d | 2008-10-31 09:52:39 +0000 | [diff] [blame] | 1797 | TagType == DeclSpec::TST_class) && "Invalid TagType!"); |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1798 | |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 1799 | PrettyDeclStackTraceEntry CrashInfo(Actions, TagDecl, RecordLoc, |
| 1800 | "parsing struct/union/class body"); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1801 | |
Douglas Gregor | 26997fd | 2010-01-16 20:52:59 +0000 | [diff] [blame] | 1802 | // Determine whether this is a non-nested class. Note that local |
| 1803 | // classes are *not* considered to be nested classes. |
| 1804 | bool NonNestedClass = true; |
| 1805 | if (!ClassStack.empty()) { |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 1806 | for (const Scope *S = getCurScope(); S; S = S->getParent()) { |
Douglas Gregor | 26997fd | 2010-01-16 20:52:59 +0000 | [diff] [blame] | 1807 | if (S->isClassScope()) { |
| 1808 | // We're inside a class scope, so this is a nested class. |
| 1809 | NonNestedClass = false; |
| 1810 | break; |
| 1811 | } |
| 1812 | |
| 1813 | if ((S->getFlags() & Scope::FnScope)) { |
| 1814 | // If we're in a function or function template declared in the |
| 1815 | // body of a class, then this is a local class rather than a |
| 1816 | // nested class. |
| 1817 | const Scope *Parent = S->getParent(); |
| 1818 | if (Parent->isTemplateParamScope()) |
| 1819 | Parent = Parent->getParent(); |
| 1820 | if (Parent->isClassScope()) |
| 1821 | break; |
| 1822 | } |
| 1823 | } |
| 1824 | } |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1825 | |
| 1826 | // Enter a scope for the class. |
Douglas Gregor | 3218c4b | 2009-01-09 22:42:13 +0000 | [diff] [blame] | 1827 | ParseScope ClassScope(this, Scope::ClassScope|Scope::DeclScope); |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1828 | |
Douglas Gregor | 6569d68 | 2009-05-27 23:11:45 +0000 | [diff] [blame] | 1829 | // Note that we are parsing a new (potentially-nested) class definition. |
Douglas Gregor | 26997fd | 2010-01-16 20:52:59 +0000 | [diff] [blame] | 1830 | ParsingClassDefinition ParsingDef(*this, TagDecl, NonNestedClass); |
Douglas Gregor | 6569d68 | 2009-05-27 23:11:45 +0000 | [diff] [blame] | 1831 | |
Douglas Gregor | ddc29e1 | 2009-02-06 22:42:48 +0000 | [diff] [blame] | 1832 | if (TagDecl) |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 1833 | Actions.ActOnTagStartDefinition(getCurScope(), TagDecl); |
John McCall | bd0dfa5 | 2009-12-19 21:48:58 +0000 | [diff] [blame] | 1834 | |
Anders Carlsson | b184a18 | 2011-03-25 14:46:08 +0000 | [diff] [blame] | 1835 | SourceLocation FinalLoc; |
| 1836 | |
| 1837 | // Parse the optional 'final' keyword. |
| 1838 | if (getLang().CPlusPlus && Tok.is(tok::identifier)) { |
| 1839 | IdentifierInfo *II = Tok.getIdentifierInfo(); |
| 1840 | |
| 1841 | // Initialize the contextual keywords. |
| 1842 | if (!Ident_final) { |
| 1843 | Ident_final = &PP.getIdentifierTable().get("final"); |
| 1844 | Ident_override = &PP.getIdentifierTable().get("override"); |
| 1845 | } |
| 1846 | |
| 1847 | if (II == Ident_final) |
| 1848 | FinalLoc = ConsumeToken(); |
| 1849 | |
| 1850 | if (!getLang().CPlusPlus0x) |
| 1851 | Diag(FinalLoc, diag::ext_override_control_keyword) << "final"; |
| 1852 | } |
Anders Carlsson | cc54d59 | 2011-01-22 16:56:46 +0000 | [diff] [blame] | 1853 | |
John McCall | bd0dfa5 | 2009-12-19 21:48:58 +0000 | [diff] [blame] | 1854 | if (Tok.is(tok::colon)) { |
| 1855 | ParseBaseClause(TagDecl); |
| 1856 | |
| 1857 | if (!Tok.is(tok::l_brace)) { |
| 1858 | Diag(Tok, diag::err_expected_lbrace_after_base_specifiers); |
John McCall | db7bb4a | 2010-03-17 00:38:33 +0000 | [diff] [blame] | 1859 | |
| 1860 | if (TagDecl) |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 1861 | Actions.ActOnTagDefinitionError(getCurScope(), TagDecl); |
John McCall | bd0dfa5 | 2009-12-19 21:48:58 +0000 | [diff] [blame] | 1862 | return; |
| 1863 | } |
| 1864 | } |
| 1865 | |
| 1866 | assert(Tok.is(tok::l_brace)); |
| 1867 | |
| 1868 | SourceLocation LBraceLoc = ConsumeBrace(); |
| 1869 | |
John McCall | 42a4f66 | 2010-05-28 08:11:17 +0000 | [diff] [blame] | 1870 | if (TagDecl) |
Anders Carlsson | 2c3ee54 | 2011-03-25 14:31:08 +0000 | [diff] [blame] | 1871 | Actions.ActOnStartCXXMemberDeclarations(getCurScope(), TagDecl, FinalLoc, |
Anders Carlsson | dfc2f10 | 2011-01-22 17:51:53 +0000 | [diff] [blame] | 1872 | LBraceLoc); |
John McCall | f936815 | 2009-12-20 07:58:13 +0000 | [diff] [blame] | 1873 | |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1874 | // C++ 11p3: Members of a class defined with the keyword class are private |
| 1875 | // by default. Members of a class defined with the keywords struct or union |
| 1876 | // are public by default. |
| 1877 | AccessSpecifier CurAS; |
| 1878 | if (TagType == DeclSpec::TST_class) |
| 1879 | CurAS = AS_private; |
| 1880 | else |
| 1881 | CurAS = AS_public; |
| 1882 | |
Douglas Gregor | 07976d2 | 2010-06-21 22:31:09 +0000 | [diff] [blame] | 1883 | SourceLocation RBraceLoc; |
| 1884 | if (TagDecl) { |
| 1885 | // While we still have something to read, read the member-declarations. |
| 1886 | while (Tok.isNot(tok::r_brace) && Tok.isNot(tok::eof)) { |
| 1887 | // Each iteration of this loop reads one member-declaration. |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1888 | |
Douglas Gregor | 07976d2 | 2010-06-21 22:31:09 +0000 | [diff] [blame] | 1889 | // Check for extraneous top-level semicolon. |
| 1890 | if (Tok.is(tok::semi)) { |
| 1891 | Diag(Tok, diag::ext_extra_struct_semi) |
| 1892 | << DeclSpec::getSpecifierName((DeclSpec::TST)TagType) |
| 1893 | << FixItHint::CreateRemoval(Tok.getLocation()); |
| 1894 | ConsumeToken(); |
| 1895 | continue; |
| 1896 | } |
| 1897 | |
| 1898 | AccessSpecifier AS = getAccessSpecifierIfPresent(); |
| 1899 | if (AS != AS_none) { |
| 1900 | // Current token is a C++ access specifier. |
| 1901 | CurAS = AS; |
| 1902 | SourceLocation ASLoc = Tok.getLocation(); |
| 1903 | ConsumeToken(); |
| 1904 | if (Tok.is(tok::colon)) |
| 1905 | Actions.ActOnAccessSpecifier(AS, ASLoc, Tok.getLocation()); |
| 1906 | else |
| 1907 | Diag(Tok, diag::err_expected_colon); |
| 1908 | ConsumeToken(); |
| 1909 | continue; |
| 1910 | } |
| 1911 | |
| 1912 | // FIXME: Make sure we don't have a template here. |
| 1913 | |
| 1914 | // Parse all the comma separated declarators. |
| 1915 | ParseCXXClassMemberDeclaration(CurAS); |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1916 | } |
| 1917 | |
Douglas Gregor | 07976d2 | 2010-06-21 22:31:09 +0000 | [diff] [blame] | 1918 | RBraceLoc = MatchRHSPunctuation(tok::r_brace, LBraceLoc); |
| 1919 | } else { |
| 1920 | SkipUntil(tok::r_brace, false, false); |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1921 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1922 | |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1923 | // If attributes exist after class contents, parse them. |
John McCall | 0b7e678 | 2011-03-24 11:26:52 +0000 | [diff] [blame] | 1924 | ParsedAttributes attrs(AttrFactory); |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 1925 | MaybeParseGNUAttributes(attrs); |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1926 | |
John McCall | 42a4f66 | 2010-05-28 08:11:17 +0000 | [diff] [blame] | 1927 | if (TagDecl) |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 1928 | Actions.ActOnFinishCXXMemberSpecification(getCurScope(), RecordLoc, TagDecl, |
John McCall | 42a4f66 | 2010-05-28 08:11:17 +0000 | [diff] [blame] | 1929 | LBraceLoc, RBraceLoc, |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 1930 | attrs.getList()); |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1931 | |
| 1932 | // C++ 9.2p2: Within the class member-specification, the class is regarded as |
| 1933 | // complete within function bodies, default arguments, |
| 1934 | // exception-specifications, and constructor ctor-initializers (including |
| 1935 | // such things in nested classes). |
| 1936 | // |
Douglas Gregor | 72b505b | 2008-12-16 21:30:33 +0000 | [diff] [blame] | 1937 | // FIXME: Only function bodies and constructor ctor-initializers are |
| 1938 | // parsed correctly, fix the rest. |
Douglas Gregor | 07976d2 | 2010-06-21 22:31:09 +0000 | [diff] [blame] | 1939 | if (TagDecl && NonNestedClass) { |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1940 | // We are not inside a nested class. This class and its nested classes |
Douglas Gregor | 72b505b | 2008-12-16 21:30:33 +0000 | [diff] [blame] | 1941 | // are complete and we can parse the delayed portions of method |
| 1942 | // declarations and the lexed inline method definitions. |
Douglas Gregor | e0cc047 | 2010-06-16 23:45:56 +0000 | [diff] [blame] | 1943 | SourceLocation SavedPrevTokLocation = PrevTokLocation; |
Douglas Gregor | 6569d68 | 2009-05-27 23:11:45 +0000 | [diff] [blame] | 1944 | ParseLexedMethodDeclarations(getCurrentClass()); |
| 1945 | ParseLexedMethodDefs(getCurrentClass()); |
Douglas Gregor | e0cc047 | 2010-06-16 23:45:56 +0000 | [diff] [blame] | 1946 | PrevTokLocation = SavedPrevTokLocation; |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1947 | } |
| 1948 | |
John McCall | 42a4f66 | 2010-05-28 08:11:17 +0000 | [diff] [blame] | 1949 | if (TagDecl) |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 1950 | Actions.ActOnTagFinishDefinition(getCurScope(), TagDecl, RBraceLoc); |
John McCall | db7bb4a | 2010-03-17 00:38:33 +0000 | [diff] [blame] | 1951 | |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1952 | // Leave the class scope. |
Douglas Gregor | 6569d68 | 2009-05-27 23:11:45 +0000 | [diff] [blame] | 1953 | ParsingDef.Pop(); |
Douglas Gregor | 8935b8b | 2008-12-10 06:34:36 +0000 | [diff] [blame] | 1954 | ClassScope.Exit(); |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1955 | } |
Douglas Gregor | 7ad8390 | 2008-11-05 04:29:56 +0000 | [diff] [blame] | 1956 | |
| 1957 | /// ParseConstructorInitializer - Parse a C++ constructor initializer, |
| 1958 | /// which explicitly initializes the members or base classes of a |
| 1959 | /// class (C++ [class.base.init]). For example, the three initializers |
| 1960 | /// after the ':' in the Derived constructor below: |
| 1961 | /// |
| 1962 | /// @code |
| 1963 | /// class Base { }; |
| 1964 | /// class Derived : Base { |
| 1965 | /// int x; |
| 1966 | /// float f; |
| 1967 | /// public: |
| 1968 | /// Derived(float f) : Base(), x(17), f(f) { } |
| 1969 | /// }; |
| 1970 | /// @endcode |
| 1971 | /// |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1972 | /// [C++] ctor-initializer: |
| 1973 | /// ':' mem-initializer-list |
Douglas Gregor | 7ad8390 | 2008-11-05 04:29:56 +0000 | [diff] [blame] | 1974 | /// |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1975 | /// [C++] mem-initializer-list: |
Douglas Gregor | 3fb9e4b | 2011-01-04 00:32:56 +0000 | [diff] [blame] | 1976 | /// mem-initializer ...[opt] |
| 1977 | /// mem-initializer ...[opt] , mem-initializer-list |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 1978 | void Parser::ParseConstructorInitializer(Decl *ConstructorDecl) { |
Douglas Gregor | 7ad8390 | 2008-11-05 04:29:56 +0000 | [diff] [blame] | 1979 | assert(Tok.is(tok::colon) && "Constructor initializer always starts with ':'"); |
| 1980 | |
John Wiegley | 28bbe4b | 2011-04-28 01:08:34 +0000 | [diff] [blame] | 1981 | // Poison the SEH identifiers so they are flagged as illegal in constructor initializers |
| 1982 | PoisonSEHIdentifiersRAIIObject PoisonSEHIdentifiers(*this, true); |
Douglas Gregor | 7ad8390 | 2008-11-05 04:29:56 +0000 | [diff] [blame] | 1983 | SourceLocation ColonLoc = ConsumeToken(); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1984 | |
Sean Hunt | cbb6748 | 2011-01-08 20:30:50 +0000 | [diff] [blame] | 1985 | llvm::SmallVector<CXXCtorInitializer*, 4> MemInitializers; |
Douglas Gregor | 9db7dbb | 2010-01-31 09:12:51 +0000 | [diff] [blame] | 1986 | bool AnyErrors = false; |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 1987 | |
Douglas Gregor | 7ad8390 | 2008-11-05 04:29:56 +0000 | [diff] [blame] | 1988 | do { |
Douglas Gregor | 0133f52 | 2010-08-28 00:00:50 +0000 | [diff] [blame] | 1989 | if (Tok.is(tok::code_completion)) { |
| 1990 | Actions.CodeCompleteConstructorInitializer(ConstructorDecl, |
| 1991 | MemInitializers.data(), |
| 1992 | MemInitializers.size()); |
| 1993 | ConsumeCodeCompletionToken(); |
| 1994 | } else { |
| 1995 | MemInitResult MemInit = ParseMemInitializer(ConstructorDecl); |
| 1996 | if (!MemInit.isInvalid()) |
| 1997 | MemInitializers.push_back(MemInit.get()); |
| 1998 | else |
| 1999 | AnyErrors = true; |
| 2000 | } |
| 2001 | |
Douglas Gregor | 7ad8390 | 2008-11-05 04:29:56 +0000 | [diff] [blame] | 2002 | if (Tok.is(tok::comma)) |
| 2003 | ConsumeToken(); |
| 2004 | else if (Tok.is(tok::l_brace)) |
| 2005 | break; |
Douglas Gregor | b1f6fa4 | 2010-09-07 14:35:10 +0000 | [diff] [blame] | 2006 | // If the next token looks like a base or member initializer, assume that |
| 2007 | // we're just missing a comma. |
Douglas Gregor | 751f692 | 2010-09-07 14:51:08 +0000 | [diff] [blame] | 2008 | else if (Tok.is(tok::identifier) || Tok.is(tok::coloncolon)) { |
| 2009 | SourceLocation Loc = PP.getLocForEndOfToken(PrevTokLocation); |
| 2010 | Diag(Loc, diag::err_ctor_init_missing_comma) |
| 2011 | << FixItHint::CreateInsertion(Loc, ", "); |
| 2012 | } else { |
Douglas Gregor | 7ad8390 | 2008-11-05 04:29:56 +0000 | [diff] [blame] | 2013 | // Skip over garbage, until we get to '{'. Don't eat the '{'. |
Sebastian Redl | d3a413d | 2009-04-26 20:35:05 +0000 | [diff] [blame] | 2014 | Diag(Tok.getLocation(), diag::err_expected_lbrace_or_comma); |
Douglas Gregor | 7ad8390 | 2008-11-05 04:29:56 +0000 | [diff] [blame] | 2015 | SkipUntil(tok::l_brace, true, true); |
| 2016 | break; |
| 2017 | } |
| 2018 | } while (true); |
| 2019 | |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2020 | Actions.ActOnMemInitializers(ConstructorDecl, ColonLoc, |
Douglas Gregor | 9db7dbb | 2010-01-31 09:12:51 +0000 | [diff] [blame] | 2021 | MemInitializers.data(), MemInitializers.size(), |
| 2022 | AnyErrors); |
Douglas Gregor | 7ad8390 | 2008-11-05 04:29:56 +0000 | [diff] [blame] | 2023 | } |
| 2024 | |
| 2025 | /// ParseMemInitializer - Parse a C++ member initializer, which is |
| 2026 | /// part of a constructor initializer that explicitly initializes one |
| 2027 | /// member or base class (C++ [class.base.init]). See |
| 2028 | /// ParseConstructorInitializer for an example. |
| 2029 | /// |
| 2030 | /// [C++] mem-initializer: |
| 2031 | /// mem-initializer-id '(' expression-list[opt] ')' |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2032 | /// |
Douglas Gregor | 7ad8390 | 2008-11-05 04:29:56 +0000 | [diff] [blame] | 2033 | /// [C++] mem-initializer-id: |
| 2034 | /// '::'[opt] nested-name-specifier[opt] class-name |
| 2035 | /// identifier |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 2036 | Parser::MemInitResult Parser::ParseMemInitializer(Decl *ConstructorDecl) { |
Fariborz Jahanian | bcfad54 | 2009-06-30 23:26:25 +0000 | [diff] [blame] | 2037 | // parse '::'[opt] nested-name-specifier[opt] |
| 2038 | CXXScopeSpec SS; |
John McCall | b3d8748 | 2010-08-24 05:47:05 +0000 | [diff] [blame] | 2039 | ParseOptionalCXXScopeSpecifier(SS, ParsedType(), false); |
| 2040 | ParsedType TemplateTypeTy; |
Fariborz Jahanian | 9617433 | 2009-07-01 19:21:19 +0000 | [diff] [blame] | 2041 | if (Tok.is(tok::annot_template_id)) { |
| 2042 | TemplateIdAnnotation *TemplateId |
| 2043 | = static_cast<TemplateIdAnnotation *>(Tok.getAnnotationValue()); |
Douglas Gregor | d9b600c | 2010-01-12 17:52:59 +0000 | [diff] [blame] | 2044 | if (TemplateId->Kind == TNK_Type_template || |
| 2045 | TemplateId->Kind == TNK_Dependent_template_name) { |
Douglas Gregor | 059101f | 2011-03-02 00:47:37 +0000 | [diff] [blame] | 2046 | AnnotateTemplateIdTokenAsType(); |
Fariborz Jahanian | 9617433 | 2009-07-01 19:21:19 +0000 | [diff] [blame] | 2047 | assert(Tok.is(tok::annot_typename) && "template-id -> type failed"); |
John McCall | b3d8748 | 2010-08-24 05:47:05 +0000 | [diff] [blame] | 2048 | TemplateTypeTy = getTypeAnnotation(Tok); |
Fariborz Jahanian | 9617433 | 2009-07-01 19:21:19 +0000 | [diff] [blame] | 2049 | } |
Fariborz Jahanian | 9617433 | 2009-07-01 19:21:19 +0000 | [diff] [blame] | 2050 | } |
| 2051 | if (!TemplateTypeTy && Tok.isNot(tok::identifier)) { |
Chris Lattner | 1ab3b96 | 2008-11-18 07:48:38 +0000 | [diff] [blame] | 2052 | Diag(Tok, diag::err_expected_member_or_base_name); |
Douglas Gregor | 7ad8390 | 2008-11-05 04:29:56 +0000 | [diff] [blame] | 2053 | return true; |
| 2054 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2055 | |
Douglas Gregor | 7ad8390 | 2008-11-05 04:29:56 +0000 | [diff] [blame] | 2056 | // Get the identifier. This may be a member name or a class name, |
| 2057 | // but we'll let the semantic analysis determine which it is. |
Fariborz Jahanian | 9617433 | 2009-07-01 19:21:19 +0000 | [diff] [blame] | 2058 | IdentifierInfo *II = Tok.is(tok::identifier) ? Tok.getIdentifierInfo() : 0; |
Douglas Gregor | 7ad8390 | 2008-11-05 04:29:56 +0000 | [diff] [blame] | 2059 | SourceLocation IdLoc = ConsumeToken(); |
| 2060 | |
| 2061 | // Parse the '('. |
| 2062 | if (Tok.isNot(tok::l_paren)) { |
Chris Lattner | 1ab3b96 | 2008-11-18 07:48:38 +0000 | [diff] [blame] | 2063 | Diag(Tok, diag::err_expected_lparen); |
Douglas Gregor | 7ad8390 | 2008-11-05 04:29:56 +0000 | [diff] [blame] | 2064 | return true; |
| 2065 | } |
| 2066 | SourceLocation LParenLoc = ConsumeParen(); |
| 2067 | |
| 2068 | // Parse the optional expression-list. |
Sebastian Redl | a55e52c | 2008-11-25 22:21:31 +0000 | [diff] [blame] | 2069 | ExprVector ArgExprs(Actions); |
Douglas Gregor | 7ad8390 | 2008-11-05 04:29:56 +0000 | [diff] [blame] | 2070 | CommaLocsTy CommaLocs; |
| 2071 | if (Tok.isNot(tok::r_paren) && ParseExpressionList(ArgExprs, CommaLocs)) { |
| 2072 | SkipUntil(tok::r_paren); |
| 2073 | return true; |
| 2074 | } |
| 2075 | |
| 2076 | SourceLocation RParenLoc = MatchRHSPunctuation(tok::r_paren, LParenLoc); |
| 2077 | |
Douglas Gregor | 3fb9e4b | 2011-01-04 00:32:56 +0000 | [diff] [blame] | 2078 | SourceLocation EllipsisLoc; |
| 2079 | if (Tok.is(tok::ellipsis)) |
| 2080 | EllipsisLoc = ConsumeToken(); |
| 2081 | |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 2082 | return Actions.ActOnMemInitializer(ConstructorDecl, getCurScope(), SS, II, |
Fariborz Jahanian | 9617433 | 2009-07-01 19:21:19 +0000 | [diff] [blame] | 2083 | TemplateTypeTy, IdLoc, |
Sebastian Redl | a55e52c | 2008-11-25 22:21:31 +0000 | [diff] [blame] | 2084 | LParenLoc, ArgExprs.take(), |
Douglas Gregor | 3fb9e4b | 2011-01-04 00:32:56 +0000 | [diff] [blame] | 2085 | ArgExprs.size(), RParenLoc, |
| 2086 | EllipsisLoc); |
Douglas Gregor | 7ad8390 | 2008-11-05 04:29:56 +0000 | [diff] [blame] | 2087 | } |
Douglas Gregor | 0fe7bea | 2008-11-25 03:22:00 +0000 | [diff] [blame] | 2088 | |
Sebastian Redl | 7acafd0 | 2011-03-05 14:45:16 +0000 | [diff] [blame] | 2089 | /// \brief Parse a C++ exception-specification if present (C++0x [except.spec]). |
Douglas Gregor | 0fe7bea | 2008-11-25 03:22:00 +0000 | [diff] [blame] | 2090 | /// |
Douglas Gregor | a474561 | 2008-12-01 18:00:20 +0000 | [diff] [blame] | 2091 | /// exception-specification: |
Sebastian Redl | 7acafd0 | 2011-03-05 14:45:16 +0000 | [diff] [blame] | 2092 | /// dynamic-exception-specification |
| 2093 | /// noexcept-specification |
| 2094 | /// |
| 2095 | /// noexcept-specification: |
| 2096 | /// 'noexcept' |
| 2097 | /// 'noexcept' '(' constant-expression ')' |
| 2098 | ExceptionSpecificationType |
| 2099 | Parser::MaybeParseExceptionSpecification(SourceRange &SpecificationRange, |
| 2100 | llvm::SmallVectorImpl<ParsedType> &DynamicExceptions, |
| 2101 | llvm::SmallVectorImpl<SourceRange> &DynamicExceptionRanges, |
| 2102 | ExprResult &NoexceptExpr) { |
| 2103 | ExceptionSpecificationType Result = EST_None; |
| 2104 | |
| 2105 | // See if there's a dynamic specification. |
| 2106 | if (Tok.is(tok::kw_throw)) { |
| 2107 | Result = ParseDynamicExceptionSpecification(SpecificationRange, |
| 2108 | DynamicExceptions, |
| 2109 | DynamicExceptionRanges); |
| 2110 | assert(DynamicExceptions.size() == DynamicExceptionRanges.size() && |
| 2111 | "Produced different number of exception types and ranges."); |
| 2112 | } |
| 2113 | |
| 2114 | // If there's no noexcept specification, we're done. |
| 2115 | if (Tok.isNot(tok::kw_noexcept)) |
| 2116 | return Result; |
| 2117 | |
| 2118 | // If we already had a dynamic specification, parse the noexcept for, |
| 2119 | // recovery, but emit a diagnostic and don't store the results. |
| 2120 | SourceRange NoexceptRange; |
| 2121 | ExceptionSpecificationType NoexceptType = EST_None; |
| 2122 | |
| 2123 | SourceLocation KeywordLoc = ConsumeToken(); |
| 2124 | if (Tok.is(tok::l_paren)) { |
| 2125 | // There is an argument. |
| 2126 | SourceLocation LParenLoc = ConsumeParen(); |
| 2127 | NoexceptType = EST_ComputedNoexcept; |
| 2128 | NoexceptExpr = ParseConstantExpression(); |
Sebastian Redl | 60618fa | 2011-03-12 11:50:43 +0000 | [diff] [blame] | 2129 | // The argument must be contextually convertible to bool. We use |
| 2130 | // ActOnBooleanCondition for this purpose. |
| 2131 | if (!NoexceptExpr.isInvalid()) |
| 2132 | NoexceptExpr = Actions.ActOnBooleanCondition(getCurScope(), KeywordLoc, |
| 2133 | NoexceptExpr.get()); |
Sebastian Redl | 7acafd0 | 2011-03-05 14:45:16 +0000 | [diff] [blame] | 2134 | SourceLocation RParenLoc = MatchRHSPunctuation(tok::r_paren, LParenLoc); |
| 2135 | NoexceptRange = SourceRange(KeywordLoc, RParenLoc); |
| 2136 | } else { |
| 2137 | // There is no argument. |
| 2138 | NoexceptType = EST_BasicNoexcept; |
| 2139 | NoexceptRange = SourceRange(KeywordLoc, KeywordLoc); |
| 2140 | } |
| 2141 | |
| 2142 | if (Result == EST_None) { |
| 2143 | SpecificationRange = NoexceptRange; |
| 2144 | Result = NoexceptType; |
| 2145 | |
| 2146 | // If there's a dynamic specification after a noexcept specification, |
| 2147 | // parse that and ignore the results. |
| 2148 | if (Tok.is(tok::kw_throw)) { |
| 2149 | Diag(Tok.getLocation(), diag::err_dynamic_and_noexcept_specification); |
| 2150 | ParseDynamicExceptionSpecification(NoexceptRange, DynamicExceptions, |
| 2151 | DynamicExceptionRanges); |
| 2152 | } |
| 2153 | } else { |
| 2154 | Diag(Tok.getLocation(), diag::err_dynamic_and_noexcept_specification); |
| 2155 | } |
| 2156 | |
| 2157 | return Result; |
| 2158 | } |
| 2159 | |
| 2160 | /// ParseDynamicExceptionSpecification - Parse a C++ |
| 2161 | /// dynamic-exception-specification (C++ [except.spec]). |
| 2162 | /// |
| 2163 | /// dynamic-exception-specification: |
Douglas Gregor | a474561 | 2008-12-01 18:00:20 +0000 | [diff] [blame] | 2164 | /// 'throw' '(' type-id-list [opt] ')' |
| 2165 | /// [MS] 'throw' '(' '...' ')' |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2166 | /// |
Douglas Gregor | a474561 | 2008-12-01 18:00:20 +0000 | [diff] [blame] | 2167 | /// type-id-list: |
Douglas Gregor | a04426c | 2010-12-20 23:57:46 +0000 | [diff] [blame] | 2168 | /// type-id ... [opt] |
| 2169 | /// type-id-list ',' type-id ... [opt] |
Douglas Gregor | 0fe7bea | 2008-11-25 03:22:00 +0000 | [diff] [blame] | 2170 | /// |
Sebastian Redl | 7acafd0 | 2011-03-05 14:45:16 +0000 | [diff] [blame] | 2171 | ExceptionSpecificationType Parser::ParseDynamicExceptionSpecification( |
| 2172 | SourceRange &SpecificationRange, |
| 2173 | llvm::SmallVectorImpl<ParsedType> &Exceptions, |
| 2174 | llvm::SmallVectorImpl<SourceRange> &Ranges) { |
Douglas Gregor | 0fe7bea | 2008-11-25 03:22:00 +0000 | [diff] [blame] | 2175 | assert(Tok.is(tok::kw_throw) && "expected throw"); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2176 | |
Sebastian Redl | 7acafd0 | 2011-03-05 14:45:16 +0000 | [diff] [blame] | 2177 | SpecificationRange.setBegin(ConsumeToken()); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2178 | |
Douglas Gregor | 0fe7bea | 2008-11-25 03:22:00 +0000 | [diff] [blame] | 2179 | if (!Tok.is(tok::l_paren)) { |
Sebastian Redl | 7acafd0 | 2011-03-05 14:45:16 +0000 | [diff] [blame] | 2180 | Diag(Tok, diag::err_expected_lparen_after) << "throw"; |
| 2181 | SpecificationRange.setEnd(SpecificationRange.getBegin()); |
Sebastian Redl | 60618fa | 2011-03-12 11:50:43 +0000 | [diff] [blame] | 2182 | return EST_DynamicNone; |
Douglas Gregor | 0fe7bea | 2008-11-25 03:22:00 +0000 | [diff] [blame] | 2183 | } |
| 2184 | SourceLocation LParenLoc = ConsumeParen(); |
| 2185 | |
Douglas Gregor | a474561 | 2008-12-01 18:00:20 +0000 | [diff] [blame] | 2186 | // Parse throw(...), a Microsoft extension that means "this function |
| 2187 | // can throw anything". |
| 2188 | if (Tok.is(tok::ellipsis)) { |
| 2189 | SourceLocation EllipsisLoc = ConsumeToken(); |
| 2190 | if (!getLang().Microsoft) |
| 2191 | Diag(EllipsisLoc, diag::ext_ellipsis_exception_spec); |
Sebastian Redl | 7acafd0 | 2011-03-05 14:45:16 +0000 | [diff] [blame] | 2192 | SourceLocation RParenLoc = MatchRHSPunctuation(tok::r_paren, LParenLoc); |
| 2193 | SpecificationRange.setEnd(RParenLoc); |
Sebastian Redl | 60618fa | 2011-03-12 11:50:43 +0000 | [diff] [blame] | 2194 | return EST_MSAny; |
Douglas Gregor | a474561 | 2008-12-01 18:00:20 +0000 | [diff] [blame] | 2195 | } |
| 2196 | |
Douglas Gregor | 0fe7bea | 2008-11-25 03:22:00 +0000 | [diff] [blame] | 2197 | // Parse the sequence of type-ids. |
Sebastian Redl | ef65f06 | 2009-05-29 18:02:33 +0000 | [diff] [blame] | 2198 | SourceRange Range; |
Douglas Gregor | 0fe7bea | 2008-11-25 03:22:00 +0000 | [diff] [blame] | 2199 | while (Tok.isNot(tok::r_paren)) { |
Sebastian Redl | ef65f06 | 2009-05-29 18:02:33 +0000 | [diff] [blame] | 2200 | TypeResult Res(ParseTypeName(&Range)); |
Sebastian Redl | 7acafd0 | 2011-03-05 14:45:16 +0000 | [diff] [blame] | 2201 | |
Douglas Gregor | a04426c | 2010-12-20 23:57:46 +0000 | [diff] [blame] | 2202 | if (Tok.is(tok::ellipsis)) { |
| 2203 | // C++0x [temp.variadic]p5: |
| 2204 | // - In a dynamic-exception-specification (15.4); the pattern is a |
| 2205 | // type-id. |
| 2206 | SourceLocation Ellipsis = ConsumeToken(); |
Sebastian Redl | 7acafd0 | 2011-03-05 14:45:16 +0000 | [diff] [blame] | 2207 | Range.setEnd(Ellipsis); |
Douglas Gregor | a04426c | 2010-12-20 23:57:46 +0000 | [diff] [blame] | 2208 | if (!Res.isInvalid()) |
| 2209 | Res = Actions.ActOnPackExpansion(Res.get(), Ellipsis); |
| 2210 | } |
Sebastian Redl | 7acafd0 | 2011-03-05 14:45:16 +0000 | [diff] [blame] | 2211 | |
Sebastian Redl | ef65f06 | 2009-05-29 18:02:33 +0000 | [diff] [blame] | 2212 | if (!Res.isInvalid()) { |
Sebastian Redl | 7dc8134 | 2009-04-29 17:30:04 +0000 | [diff] [blame] | 2213 | Exceptions.push_back(Res.get()); |
Sebastian Redl | ef65f06 | 2009-05-29 18:02:33 +0000 | [diff] [blame] | 2214 | Ranges.push_back(Range); |
| 2215 | } |
Douglas Gregor | a04426c | 2010-12-20 23:57:46 +0000 | [diff] [blame] | 2216 | |
Douglas Gregor | 0fe7bea | 2008-11-25 03:22:00 +0000 | [diff] [blame] | 2217 | if (Tok.is(tok::comma)) |
| 2218 | ConsumeToken(); |
Sebastian Redl | 7dc8134 | 2009-04-29 17:30:04 +0000 | [diff] [blame] | 2219 | else |
Douglas Gregor | 0fe7bea | 2008-11-25 03:22:00 +0000 | [diff] [blame] | 2220 | break; |
| 2221 | } |
| 2222 | |
Sebastian Redl | 7acafd0 | 2011-03-05 14:45:16 +0000 | [diff] [blame] | 2223 | SpecificationRange.setEnd(MatchRHSPunctuation(tok::r_paren, LParenLoc)); |
Sebastian Redl | 60618fa | 2011-03-12 11:50:43 +0000 | [diff] [blame] | 2224 | return Exceptions.empty() ? EST_DynamicNone : EST_Dynamic; |
Douglas Gregor | 0fe7bea | 2008-11-25 03:22:00 +0000 | [diff] [blame] | 2225 | } |
Douglas Gregor | 6569d68 | 2009-05-27 23:11:45 +0000 | [diff] [blame] | 2226 | |
Douglas Gregor | dab60ad | 2010-10-01 18:44:50 +0000 | [diff] [blame] | 2227 | /// ParseTrailingReturnType - Parse a trailing return type on a new-style |
| 2228 | /// function declaration. |
| 2229 | TypeResult Parser::ParseTrailingReturnType() { |
| 2230 | assert(Tok.is(tok::arrow) && "expected arrow"); |
| 2231 | |
| 2232 | ConsumeToken(); |
| 2233 | |
| 2234 | // FIXME: Need to suppress declarations when parsing this typename. |
| 2235 | // Otherwise in this function definition: |
| 2236 | // |
| 2237 | // auto f() -> struct X {} |
| 2238 | // |
| 2239 | // struct X is parsed as class definition because of the trailing |
| 2240 | // brace. |
| 2241 | |
| 2242 | SourceRange Range; |
| 2243 | return ParseTypeName(&Range); |
| 2244 | } |
| 2245 | |
Douglas Gregor | 6569d68 | 2009-05-27 23:11:45 +0000 | [diff] [blame] | 2246 | /// \brief We have just started parsing the definition of a new class, |
| 2247 | /// so push that class onto our stack of classes that is currently |
| 2248 | /// being parsed. |
John McCall | eee1d54 | 2011-02-14 07:13:47 +0000 | [diff] [blame] | 2249 | Sema::ParsingClassState |
| 2250 | Parser::PushParsingClass(Decl *ClassDecl, bool NonNestedClass) { |
Douglas Gregor | 26997fd | 2010-01-16 20:52:59 +0000 | [diff] [blame] | 2251 | assert((NonNestedClass || !ClassStack.empty()) && |
Douglas Gregor | 6569d68 | 2009-05-27 23:11:45 +0000 | [diff] [blame] | 2252 | "Nested class without outer class"); |
Douglas Gregor | 26997fd | 2010-01-16 20:52:59 +0000 | [diff] [blame] | 2253 | ClassStack.push(new ParsingClass(ClassDecl, NonNestedClass)); |
John McCall | eee1d54 | 2011-02-14 07:13:47 +0000 | [diff] [blame] | 2254 | return Actions.PushParsingClass(); |
Douglas Gregor | 6569d68 | 2009-05-27 23:11:45 +0000 | [diff] [blame] | 2255 | } |
| 2256 | |
| 2257 | /// \brief Deallocate the given parsed class and all of its nested |
| 2258 | /// classes. |
| 2259 | void Parser::DeallocateParsedClasses(Parser::ParsingClass *Class) { |
Douglas Gregor | d54eb44 | 2010-10-12 16:25:54 +0000 | [diff] [blame] | 2260 | for (unsigned I = 0, N = Class->LateParsedDeclarations.size(); I != N; ++I) |
| 2261 | delete Class->LateParsedDeclarations[I]; |
Douglas Gregor | 6569d68 | 2009-05-27 23:11:45 +0000 | [diff] [blame] | 2262 | delete Class; |
| 2263 | } |
| 2264 | |
| 2265 | /// \brief Pop the top class of the stack of classes that are |
| 2266 | /// currently being parsed. |
| 2267 | /// |
| 2268 | /// This routine should be called when we have finished parsing the |
| 2269 | /// definition of a class, but have not yet popped the Scope |
| 2270 | /// associated with the class's definition. |
| 2271 | /// |
| 2272 | /// \returns true if the class we've popped is a top-level class, |
| 2273 | /// false otherwise. |
John McCall | eee1d54 | 2011-02-14 07:13:47 +0000 | [diff] [blame] | 2274 | void Parser::PopParsingClass(Sema::ParsingClassState state) { |
Douglas Gregor | 6569d68 | 2009-05-27 23:11:45 +0000 | [diff] [blame] | 2275 | assert(!ClassStack.empty() && "Mismatched push/pop for class parsing"); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2276 | |
John McCall | eee1d54 | 2011-02-14 07:13:47 +0000 | [diff] [blame] | 2277 | Actions.PopParsingClass(state); |
| 2278 | |
Douglas Gregor | 6569d68 | 2009-05-27 23:11:45 +0000 | [diff] [blame] | 2279 | ParsingClass *Victim = ClassStack.top(); |
| 2280 | ClassStack.pop(); |
| 2281 | if (Victim->TopLevelClass) { |
| 2282 | // Deallocate all of the nested classes of this class, |
| 2283 | // recursively: we don't need to keep any of this information. |
| 2284 | DeallocateParsedClasses(Victim); |
| 2285 | return; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2286 | } |
Douglas Gregor | 6569d68 | 2009-05-27 23:11:45 +0000 | [diff] [blame] | 2287 | assert(!ClassStack.empty() && "Missing top-level class?"); |
| 2288 | |
Douglas Gregor | d54eb44 | 2010-10-12 16:25:54 +0000 | [diff] [blame] | 2289 | if (Victim->LateParsedDeclarations.empty()) { |
Douglas Gregor | 6569d68 | 2009-05-27 23:11:45 +0000 | [diff] [blame] | 2290 | // The victim is a nested class, but we will not need to perform |
| 2291 | // any processing after the definition of this class since it has |
| 2292 | // no members whose handling was delayed. Therefore, we can just |
| 2293 | // remove this nested class. |
Douglas Gregor | d54eb44 | 2010-10-12 16:25:54 +0000 | [diff] [blame] | 2294 | DeallocateParsedClasses(Victim); |
Douglas Gregor | 6569d68 | 2009-05-27 23:11:45 +0000 | [diff] [blame] | 2295 | return; |
| 2296 | } |
| 2297 | |
| 2298 | // This nested class has some members that will need to be processed |
| 2299 | // after the top-level class is completely defined. Therefore, add |
| 2300 | // it to the list of nested classes within its parent. |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 2301 | assert(getCurScope()->isClassScope() && "Nested class outside of class scope?"); |
Douglas Gregor | d54eb44 | 2010-10-12 16:25:54 +0000 | [diff] [blame] | 2302 | ClassStack.top()->LateParsedDeclarations.push_back(new LateParsedClass(this, Victim)); |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 2303 | Victim->TemplateScope = getCurScope()->getParent()->isTemplateParamScope(); |
Douglas Gregor | 6569d68 | 2009-05-27 23:11:45 +0000 | [diff] [blame] | 2304 | } |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 2305 | |
| 2306 | /// ParseCXX0XAttributes - Parse a C++0x attribute-specifier. Currently only |
| 2307 | /// parses standard attributes. |
| 2308 | /// |
| 2309 | /// [C++0x] attribute-specifier: |
| 2310 | /// '[' '[' attribute-list ']' ']' |
| 2311 | /// |
| 2312 | /// [C++0x] attribute-list: |
| 2313 | /// attribute[opt] |
| 2314 | /// attribute-list ',' attribute[opt] |
| 2315 | /// |
| 2316 | /// [C++0x] attribute: |
| 2317 | /// attribute-token attribute-argument-clause[opt] |
| 2318 | /// |
| 2319 | /// [C++0x] attribute-token: |
| 2320 | /// identifier |
| 2321 | /// attribute-scoped-token |
| 2322 | /// |
| 2323 | /// [C++0x] attribute-scoped-token: |
| 2324 | /// attribute-namespace '::' identifier |
| 2325 | /// |
| 2326 | /// [C++0x] attribute-namespace: |
| 2327 | /// identifier |
| 2328 | /// |
| 2329 | /// [C++0x] attribute-argument-clause: |
| 2330 | /// '(' balanced-token-seq ')' |
| 2331 | /// |
| 2332 | /// [C++0x] balanced-token-seq: |
| 2333 | /// balanced-token |
| 2334 | /// balanced-token-seq balanced-token |
| 2335 | /// |
| 2336 | /// [C++0x] balanced-token: |
| 2337 | /// '(' balanced-token-seq ')' |
| 2338 | /// '[' balanced-token-seq ']' |
| 2339 | /// '{' balanced-token-seq '}' |
| 2340 | /// any token but '(', ')', '[', ']', '{', or '}' |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 2341 | void Parser::ParseCXX0XAttributes(ParsedAttributesWithRange &attrs, |
| 2342 | SourceLocation *endLoc) { |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 2343 | assert(Tok.is(tok::l_square) && NextToken().is(tok::l_square) |
| 2344 | && "Not a C++0x attribute list"); |
| 2345 | |
| 2346 | SourceLocation StartLoc = Tok.getLocation(), Loc; |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 2347 | |
| 2348 | ConsumeBracket(); |
| 2349 | ConsumeBracket(); |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 2350 | |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 2351 | if (Tok.is(tok::comma)) { |
| 2352 | Diag(Tok.getLocation(), diag::err_expected_ident); |
| 2353 | ConsumeToken(); |
| 2354 | } |
| 2355 | |
| 2356 | while (Tok.is(tok::identifier) || Tok.is(tok::comma)) { |
| 2357 | // attribute not present |
| 2358 | if (Tok.is(tok::comma)) { |
| 2359 | ConsumeToken(); |
| 2360 | continue; |
| 2361 | } |
| 2362 | |
| 2363 | IdentifierInfo *ScopeName = 0, *AttrName = Tok.getIdentifierInfo(); |
| 2364 | SourceLocation ScopeLoc, AttrLoc = ConsumeToken(); |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 2365 | |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 2366 | // scoped attribute |
| 2367 | if (Tok.is(tok::coloncolon)) { |
| 2368 | ConsumeToken(); |
| 2369 | |
| 2370 | if (!Tok.is(tok::identifier)) { |
| 2371 | Diag(Tok.getLocation(), diag::err_expected_ident); |
| 2372 | SkipUntil(tok::r_square, tok::comma, true, true); |
| 2373 | continue; |
| 2374 | } |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 2375 | |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 2376 | ScopeName = AttrName; |
| 2377 | ScopeLoc = AttrLoc; |
| 2378 | |
| 2379 | AttrName = Tok.getIdentifierInfo(); |
| 2380 | AttrLoc = ConsumeToken(); |
| 2381 | } |
| 2382 | |
| 2383 | bool AttrParsed = false; |
| 2384 | // No scoped names are supported; ideally we could put all non-standard |
| 2385 | // attributes into namespaces. |
| 2386 | if (!ScopeName) { |
| 2387 | switch(AttributeList::getKind(AttrName)) |
| 2388 | { |
| 2389 | // No arguments |
Sean Hunt | 7725e67 | 2009-11-25 04:20:27 +0000 | [diff] [blame] | 2390 | case AttributeList::AT_carries_dependency: |
Anders Carlsson | 15e14a2 | 2011-01-23 21:33:18 +0000 | [diff] [blame] | 2391 | case AttributeList::AT_noreturn: { |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 2392 | if (Tok.is(tok::l_paren)) { |
| 2393 | Diag(Tok.getLocation(), diag::err_cxx0x_attribute_forbids_arguments) |
| 2394 | << AttrName->getName(); |
| 2395 | break; |
| 2396 | } |
| 2397 | |
John McCall | 0b7e678 | 2011-03-24 11:26:52 +0000 | [diff] [blame] | 2398 | attrs.addNew(AttrName, AttrLoc, 0, AttrLoc, 0, |
| 2399 | SourceLocation(), 0, 0, false, true); |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 2400 | AttrParsed = true; |
| 2401 | break; |
| 2402 | } |
| 2403 | |
| 2404 | // One argument; must be a type-id or assignment-expression |
| 2405 | case AttributeList::AT_aligned: { |
| 2406 | if (Tok.isNot(tok::l_paren)) { |
| 2407 | Diag(Tok.getLocation(), diag::err_cxx0x_attribute_requires_arguments) |
| 2408 | << AttrName->getName(); |
| 2409 | break; |
| 2410 | } |
| 2411 | SourceLocation ParamLoc = ConsumeParen(); |
| 2412 | |
John McCall | 60d7b3a | 2010-08-24 06:29:42 +0000 | [diff] [blame] | 2413 | ExprResult ArgExpr = ParseCXX0XAlignArgument(ParamLoc); |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 2414 | |
| 2415 | MatchRHSPunctuation(tok::r_paren, ParamLoc); |
| 2416 | |
| 2417 | ExprVector ArgExprs(Actions); |
| 2418 | ArgExprs.push_back(ArgExpr.release()); |
John McCall | 0b7e678 | 2011-03-24 11:26:52 +0000 | [diff] [blame] | 2419 | attrs.addNew(AttrName, AttrLoc, 0, AttrLoc, |
| 2420 | 0, ParamLoc, ArgExprs.take(), 1, |
| 2421 | false, true); |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 2422 | |
| 2423 | AttrParsed = true; |
| 2424 | break; |
| 2425 | } |
| 2426 | |
| 2427 | // Silence warnings |
| 2428 | default: break; |
| 2429 | } |
| 2430 | } |
| 2431 | |
| 2432 | // Skip the entire parameter clause, if any |
| 2433 | if (!AttrParsed && Tok.is(tok::l_paren)) { |
| 2434 | ConsumeParen(); |
| 2435 | // SkipUntil maintains the balancedness of tokens. |
| 2436 | SkipUntil(tok::r_paren, false); |
| 2437 | } |
| 2438 | } |
| 2439 | |
| 2440 | if (ExpectAndConsume(tok::r_square, diag::err_expected_rsquare)) |
| 2441 | SkipUntil(tok::r_square, false); |
| 2442 | Loc = Tok.getLocation(); |
| 2443 | if (ExpectAndConsume(tok::r_square, diag::err_expected_rsquare)) |
| 2444 | SkipUntil(tok::r_square, false); |
| 2445 | |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 2446 | attrs.Range = SourceRange(StartLoc, Loc); |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 2447 | } |
| 2448 | |
| 2449 | /// ParseCXX0XAlignArgument - Parse the argument to C++0x's [[align]] |
| 2450 | /// attribute. |
| 2451 | /// |
| 2452 | /// FIXME: Simply returns an alignof() expression if the argument is a |
| 2453 | /// type. Ideally, the type should be propagated directly into Sema. |
| 2454 | /// |
| 2455 | /// [C++0x] 'align' '(' type-id ')' |
| 2456 | /// [C++0x] 'align' '(' assignment-expression ')' |
John McCall | 60d7b3a | 2010-08-24 06:29:42 +0000 | [diff] [blame] | 2457 | ExprResult Parser::ParseCXX0XAlignArgument(SourceLocation Start) { |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 2458 | if (isTypeIdInParens()) { |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 2459 | EnterExpressionEvaluationContext Unevaluated(Actions, Sema::Unevaluated); |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 2460 | SourceLocation TypeLoc = Tok.getLocation(); |
John McCall | b3d8748 | 2010-08-24 05:47:05 +0000 | [diff] [blame] | 2461 | ParsedType Ty = ParseTypeName().get(); |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 2462 | SourceRange TypeRange(Start, Tok.getLocation()); |
Peter Collingbourne | f4e3cfb | 2011-03-11 19:24:49 +0000 | [diff] [blame] | 2463 | return Actions.ActOnUnaryExprOrTypeTraitExpr(TypeLoc, UETT_AlignOf, true, |
| 2464 | Ty.getAsOpaquePtr(), TypeRange); |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 2465 | } else |
| 2466 | return ParseConstantExpression(); |
| 2467 | } |
Francois Pichet | 334d47e | 2010-10-11 12:59:39 +0000 | [diff] [blame] | 2468 | |
| 2469 | /// ParseMicrosoftAttributes - Parse a Microsoft attribute [Attr] |
| 2470 | /// |
| 2471 | /// [MS] ms-attribute: |
| 2472 | /// '[' token-seq ']' |
| 2473 | /// |
| 2474 | /// [MS] ms-attribute-seq: |
| 2475 | /// ms-attribute[opt] |
| 2476 | /// ms-attribute ms-attribute-seq |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 2477 | void Parser::ParseMicrosoftAttributes(ParsedAttributes &attrs, |
| 2478 | SourceLocation *endLoc) { |
Francois Pichet | 334d47e | 2010-10-11 12:59:39 +0000 | [diff] [blame] | 2479 | assert(Tok.is(tok::l_square) && "Not a Microsoft attribute list"); |
| 2480 | |
| 2481 | while (Tok.is(tok::l_square)) { |
| 2482 | ConsumeBracket(); |
| 2483 | SkipUntil(tok::r_square, true, true); |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 2484 | if (endLoc) *endLoc = Tok.getLocation(); |
Francois Pichet | 334d47e | 2010-10-11 12:59:39 +0000 | [diff] [blame] | 2485 | ExpectAndConsume(tok::r_square, diag::err_expected_rsquare); |
| 2486 | } |
| 2487 | } |