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'. |
Fariborz Jahanian | 9735c5e | 2011-08-22 17:59:19 +0000 | [diff] [blame^] | 55 | ObjCDeclContextSwitch ObjCDC(*this); |
Fariborz Jahanian | a28948f | 2011-08-22 15:54:49 +0000 | [diff] [blame] | 56 | |
Douglas Gregor | 49f40bd | 2009-09-18 19:03:04 +0000 | [diff] [blame] | 57 | if (Tok.is(tok::code_completion)) { |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 58 | Actions.CodeCompleteNamespaceDecl(getCurScope()); |
Douglas Gregor | dc84534 | 2010-05-25 05:58:43 +0000 | [diff] [blame] | 59 | ConsumeCodeCompletionToken(); |
Douglas Gregor | 49f40bd | 2009-09-18 19:03:04 +0000 | [diff] [blame] | 60 | } |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 61 | |
Chris Lattner | 8f08cb7 | 2007-08-25 06:57:03 +0000 | [diff] [blame] | 62 | SourceLocation IdentLoc; |
| 63 | IdentifierInfo *Ident = 0; |
Richard Trieu | f858bd8 | 2011-05-26 20:11:09 +0000 | [diff] [blame] | 64 | std::vector<SourceLocation> ExtraIdentLoc; |
| 65 | std::vector<IdentifierInfo*> ExtraIdent; |
| 66 | std::vector<SourceLocation> ExtraNamespaceLoc; |
Douglas Gregor | 6a588dd | 2009-06-17 19:49:00 +0000 | [diff] [blame] | 67 | |
| 68 | Token attrTok; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 69 | |
Chris Lattner | 04d6666 | 2007-10-09 17:33:22 +0000 | [diff] [blame] | 70 | if (Tok.is(tok::identifier)) { |
Chris Lattner | 8f08cb7 | 2007-08-25 06:57:03 +0000 | [diff] [blame] | 71 | Ident = Tok.getIdentifierInfo(); |
| 72 | IdentLoc = ConsumeToken(); // eat the identifier. |
Richard Trieu | f858bd8 | 2011-05-26 20:11:09 +0000 | [diff] [blame] | 73 | while (Tok.is(tok::coloncolon) && NextToken().is(tok::identifier)) { |
| 74 | ExtraNamespaceLoc.push_back(ConsumeToken()); |
| 75 | ExtraIdent.push_back(Tok.getIdentifierInfo()); |
| 76 | ExtraIdentLoc.push_back(ConsumeToken()); |
| 77 | } |
Chris Lattner | 8f08cb7 | 2007-08-25 06:57:03 +0000 | [diff] [blame] | 78 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 79 | |
Chris Lattner | 8f08cb7 | 2007-08-25 06:57:03 +0000 | [diff] [blame] | 80 | // Read label attributes, if present. |
John McCall | 0b7e678 | 2011-03-24 11:26:52 +0000 | [diff] [blame] | 81 | ParsedAttributes attrs(AttrFactory); |
Douglas Gregor | 6a588dd | 2009-06-17 19:49:00 +0000 | [diff] [blame] | 82 | if (Tok.is(tok::kw___attribute)) { |
| 83 | attrTok = Tok; |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 84 | ParseGNUAttributes(attrs); |
Douglas Gregor | 6a588dd | 2009-06-17 19:49:00 +0000 | [diff] [blame] | 85 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 86 | |
Douglas Gregor | 6a588dd | 2009-06-17 19:49:00 +0000 | [diff] [blame] | 87 | if (Tok.is(tok::equal)) { |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 88 | if (!attrs.empty()) |
Douglas Gregor | 6a588dd | 2009-06-17 19:49:00 +0000 | [diff] [blame] | 89 | Diag(attrTok, diag::err_unexpected_namespace_attributes_alias); |
Sebastian Redl | d078e64 | 2010-08-27 23:12:46 +0000 | [diff] [blame] | 90 | if (InlineLoc.isValid()) |
| 91 | Diag(InlineLoc, diag::err_inline_namespace_alias) |
| 92 | << FixItHint::CreateRemoval(InlineLoc); |
Fariborz Jahanian | 9735c5e | 2011-08-22 17:59:19 +0000 | [diff] [blame^] | 93 | return ParseNamespaceAlias(NamespaceLoc, IdentLoc, Ident, DeclEnd); |
Douglas Gregor | 6a588dd | 2009-06-17 19:49:00 +0000 | [diff] [blame] | 94 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 95 | |
Richard Trieu | f858bd8 | 2011-05-26 20:11:09 +0000 | [diff] [blame] | 96 | |
Chris Lattner | 5144832 | 2009-03-29 14:02:43 +0000 | [diff] [blame] | 97 | if (Tok.isNot(tok::l_brace)) { |
Richard Trieu | f858bd8 | 2011-05-26 20:11:09 +0000 | [diff] [blame] | 98 | if (!ExtraIdent.empty()) { |
| 99 | Diag(ExtraNamespaceLoc[0], diag::err_nested_namespaces_with_double_colon) |
| 100 | << SourceRange(ExtraNamespaceLoc.front(), ExtraIdentLoc.back()); |
| 101 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 102 | Diag(Tok, Ident ? diag::err_expected_lbrace : |
Chris Lattner | 5144832 | 2009-03-29 14:02:43 +0000 | [diff] [blame] | 103 | diag::err_expected_ident_lbrace); |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 104 | return 0; |
Chris Lattner | 8f08cb7 | 2007-08-25 06:57:03 +0000 | [diff] [blame] | 105 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 106 | |
Chris Lattner | 5144832 | 2009-03-29 14:02:43 +0000 | [diff] [blame] | 107 | SourceLocation LBrace = ConsumeBrace(); |
| 108 | |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 109 | if (getCurScope()->isClassScope() || getCurScope()->isTemplateParamScope() || |
| 110 | getCurScope()->isInObjcMethodScope() || getCurScope()->getBlockParent() || |
| 111 | getCurScope()->getFnParent()) { |
Richard Trieu | f858bd8 | 2011-05-26 20:11:09 +0000 | [diff] [blame] | 112 | if (!ExtraIdent.empty()) { |
| 113 | Diag(ExtraNamespaceLoc[0], diag::err_nested_namespaces_with_double_colon) |
| 114 | << SourceRange(ExtraNamespaceLoc.front(), ExtraIdentLoc.back()); |
| 115 | } |
Douglas Gregor | 95f1b15 | 2010-05-14 05:08:22 +0000 | [diff] [blame] | 116 | Diag(LBrace, diag::err_namespace_nonnamespace_scope); |
| 117 | SkipUntil(tok::r_brace, false); |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 118 | return 0; |
Douglas Gregor | 95f1b15 | 2010-05-14 05:08:22 +0000 | [diff] [blame] | 119 | } |
| 120 | |
Richard Trieu | f858bd8 | 2011-05-26 20:11:09 +0000 | [diff] [blame] | 121 | if (!ExtraIdent.empty()) { |
| 122 | TentativeParsingAction TPA(*this); |
| 123 | SkipUntil(tok::r_brace, /*StopAtSemi*/false, /*DontConsume*/true); |
| 124 | Token rBraceToken = Tok; |
| 125 | TPA.Revert(); |
| 126 | |
| 127 | if (!rBraceToken.is(tok::r_brace)) { |
| 128 | Diag(ExtraNamespaceLoc[0], diag::err_nested_namespaces_with_double_colon) |
| 129 | << SourceRange(ExtraNamespaceLoc.front(), ExtraIdentLoc.back()); |
| 130 | } else { |
Benjamin Kramer | 9910df0 | 2011-05-26 21:32:30 +0000 | [diff] [blame] | 131 | std::string NamespaceFix; |
Richard Trieu | f858bd8 | 2011-05-26 20:11:09 +0000 | [diff] [blame] | 132 | for (std::vector<IdentifierInfo*>::iterator I = ExtraIdent.begin(), |
| 133 | E = ExtraIdent.end(); I != E; ++I) { |
| 134 | NamespaceFix += " { namespace "; |
| 135 | NamespaceFix += (*I)->getName(); |
| 136 | } |
Benjamin Kramer | 9910df0 | 2011-05-26 21:32:30 +0000 | [diff] [blame] | 137 | |
Richard Trieu | f858bd8 | 2011-05-26 20:11:09 +0000 | [diff] [blame] | 138 | std::string RBraces; |
Benjamin Kramer | 9910df0 | 2011-05-26 21:32:30 +0000 | [diff] [blame] | 139 | for (unsigned i = 0, e = ExtraIdent.size(); i != e; ++i) |
Richard Trieu | f858bd8 | 2011-05-26 20:11:09 +0000 | [diff] [blame] | 140 | RBraces += "} "; |
Benjamin Kramer | 9910df0 | 2011-05-26 21:32:30 +0000 | [diff] [blame] | 141 | |
Richard Trieu | f858bd8 | 2011-05-26 20:11:09 +0000 | [diff] [blame] | 142 | Diag(ExtraNamespaceLoc[0], diag::err_nested_namespaces_with_double_colon) |
| 143 | << FixItHint::CreateReplacement(SourceRange(ExtraNamespaceLoc.front(), |
| 144 | ExtraIdentLoc.back()), |
| 145 | NamespaceFix) |
| 146 | << FixItHint::CreateInsertion(rBraceToken.getLocation(), RBraces); |
| 147 | } |
| 148 | } |
| 149 | |
Sebastian Redl | 88e64ca | 2010-08-31 00:36:45 +0000 | [diff] [blame] | 150 | // If we're still good, complain about inline namespaces in non-C++0x now. |
| 151 | if (!getLang().CPlusPlus0x && InlineLoc.isValid()) |
| 152 | Diag(InlineLoc, diag::ext_inline_namespace); |
| 153 | |
Chris Lattner | 5144832 | 2009-03-29 14:02:43 +0000 | [diff] [blame] | 154 | // Enter a scope for the namespace. |
| 155 | ParseScope NamespaceScope(this, Scope::DeclScope); |
| 156 | |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 157 | Decl *NamespcDecl = |
Abramo Bagnara | acba90f | 2011-03-08 12:38:20 +0000 | [diff] [blame] | 158 | Actions.ActOnStartNamespaceDef(getCurScope(), InlineLoc, NamespaceLoc, |
| 159 | IdentLoc, Ident, LBrace, attrs.getList()); |
Chris Lattner | 5144832 | 2009-03-29 14:02:43 +0000 | [diff] [blame] | 160 | |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 161 | PrettyDeclStackTraceEntry CrashInfo(Actions, NamespcDecl, NamespaceLoc, |
| 162 | "parsing namespace"); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 163 | |
Richard Trieu | f858bd8 | 2011-05-26 20:11:09 +0000 | [diff] [blame] | 164 | SourceLocation RBraceLoc; |
| 165 | // Parse the contents of the namespace. This includes parsing recovery on |
| 166 | // any improperly nested namespaces. |
| 167 | ParseInnerNamespace(ExtraIdentLoc, ExtraIdent, ExtraNamespaceLoc, 0, |
| 168 | InlineLoc, LBrace, attrs, RBraceLoc); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 169 | |
Chris Lattner | 5144832 | 2009-03-29 14:02:43 +0000 | [diff] [blame] | 170 | // Leave the namespace scope. |
| 171 | NamespaceScope.Exit(); |
| 172 | |
Chris Lattner | 97144fc | 2009-04-02 04:16:50 +0000 | [diff] [blame] | 173 | Actions.ActOnFinishNamespaceDef(NamespcDecl, RBraceLoc); |
Chris Lattner | 5144832 | 2009-03-29 14:02:43 +0000 | [diff] [blame] | 174 | |
Chris Lattner | 97144fc | 2009-04-02 04:16:50 +0000 | [diff] [blame] | 175 | DeclEnd = RBraceLoc; |
Chris Lattner | 5144832 | 2009-03-29 14:02:43 +0000 | [diff] [blame] | 176 | return NamespcDecl; |
Chris Lattner | 8f08cb7 | 2007-08-25 06:57:03 +0000 | [diff] [blame] | 177 | } |
Chris Lattner | c6fdc34 | 2008-01-12 07:05:38 +0000 | [diff] [blame] | 178 | |
Richard Trieu | f858bd8 | 2011-05-26 20:11:09 +0000 | [diff] [blame] | 179 | /// ParseInnerNamespace - Parse the contents of a namespace. |
| 180 | void Parser::ParseInnerNamespace(std::vector<SourceLocation>& IdentLoc, |
| 181 | std::vector<IdentifierInfo*>& Ident, |
| 182 | std::vector<SourceLocation>& NamespaceLoc, |
| 183 | unsigned int index, SourceLocation& InlineLoc, |
| 184 | SourceLocation& LBrace, |
| 185 | ParsedAttributes& attrs, |
| 186 | SourceLocation& RBraceLoc) { |
| 187 | if (index == Ident.size()) { |
| 188 | while (Tok.isNot(tok::r_brace) && Tok.isNot(tok::eof)) { |
| 189 | ParsedAttributesWithRange attrs(AttrFactory); |
| 190 | MaybeParseCXX0XAttributes(attrs); |
| 191 | MaybeParseMicrosoftAttributes(attrs); |
| 192 | ParseExternalDeclaration(attrs); |
| 193 | } |
| 194 | RBraceLoc = MatchRHSPunctuation(tok::r_brace, LBrace); |
| 195 | |
| 196 | return; |
| 197 | } |
| 198 | |
| 199 | // Parse improperly nested namespaces. |
| 200 | ParseScope NamespaceScope(this, Scope::DeclScope); |
| 201 | Decl *NamespcDecl = |
| 202 | Actions.ActOnStartNamespaceDef(getCurScope(), SourceLocation(), |
| 203 | NamespaceLoc[index], IdentLoc[index], |
| 204 | Ident[index], LBrace, attrs.getList()); |
| 205 | |
| 206 | ParseInnerNamespace(IdentLoc, Ident, NamespaceLoc, ++index, InlineLoc, |
| 207 | LBrace, attrs, RBraceLoc); |
| 208 | |
| 209 | NamespaceScope.Exit(); |
| 210 | |
| 211 | Actions.ActOnFinishNamespaceDef(NamespcDecl, RBraceLoc); |
| 212 | } |
| 213 | |
Anders Carlsson | f67606a | 2009-03-28 04:07:16 +0000 | [diff] [blame] | 214 | /// ParseNamespaceAlias - Parse the part after the '=' in a namespace |
| 215 | /// alias definition. |
| 216 | /// |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 217 | Decl *Parser::ParseNamespaceAlias(SourceLocation NamespaceLoc, |
John McCall | 0b7e678 | 2011-03-24 11:26:52 +0000 | [diff] [blame] | 218 | SourceLocation AliasLoc, |
| 219 | IdentifierInfo *Alias, |
| 220 | SourceLocation &DeclEnd) { |
Anders Carlsson | f67606a | 2009-03-28 04:07:16 +0000 | [diff] [blame] | 221 | assert(Tok.is(tok::equal) && "Not equal token"); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 222 | |
Anders Carlsson | f67606a | 2009-03-28 04:07:16 +0000 | [diff] [blame] | 223 | ConsumeToken(); // eat the '='. |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 224 | |
Douglas Gregor | 49f40bd | 2009-09-18 19:03:04 +0000 | [diff] [blame] | 225 | if (Tok.is(tok::code_completion)) { |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 226 | Actions.CodeCompleteNamespaceAliasDecl(getCurScope()); |
Douglas Gregor | dc84534 | 2010-05-25 05:58:43 +0000 | [diff] [blame] | 227 | ConsumeCodeCompletionToken(); |
Douglas Gregor | 49f40bd | 2009-09-18 19:03:04 +0000 | [diff] [blame] | 228 | } |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 229 | |
Anders Carlsson | f67606a | 2009-03-28 04:07:16 +0000 | [diff] [blame] | 230 | CXXScopeSpec SS; |
| 231 | // Parse (optional) nested-name-specifier. |
John McCall | b3d8748 | 2010-08-24 05:47:05 +0000 | [diff] [blame] | 232 | ParseOptionalCXXScopeSpecifier(SS, ParsedType(), false); |
Anders Carlsson | f67606a | 2009-03-28 04:07:16 +0000 | [diff] [blame] | 233 | |
| 234 | if (SS.isInvalid() || Tok.isNot(tok::identifier)) { |
| 235 | Diag(Tok, diag::err_expected_namespace_name); |
| 236 | // Skip to end of the definition and eat the ';'. |
| 237 | SkipUntil(tok::semi); |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 238 | return 0; |
Anders Carlsson | f67606a | 2009-03-28 04:07:16 +0000 | [diff] [blame] | 239 | } |
| 240 | |
| 241 | // Parse identifier. |
Anders Carlsson | 03bd5a1 | 2009-03-28 22:53:22 +0000 | [diff] [blame] | 242 | IdentifierInfo *Ident = Tok.getIdentifierInfo(); |
| 243 | SourceLocation IdentLoc = ConsumeToken(); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 244 | |
Anders Carlsson | f67606a | 2009-03-28 04:07:16 +0000 | [diff] [blame] | 245 | // Eat the ';'. |
Chris Lattner | 97144fc | 2009-04-02 04:16:50 +0000 | [diff] [blame] | 246 | DeclEnd = Tok.getLocation(); |
Chris Lattner | 6869d8e | 2009-06-14 00:07:48 +0000 | [diff] [blame] | 247 | ExpectAndConsume(tok::semi, diag::err_expected_semi_after_namespace_name, |
| 248 | "", tok::semi); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 249 | |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 250 | return Actions.ActOnNamespaceAliasDef(getCurScope(), NamespaceLoc, AliasLoc, Alias, |
Anders Carlsson | 03bd5a1 | 2009-03-28 22:53:22 +0000 | [diff] [blame] | 251 | SS, IdentLoc, Ident); |
Anders Carlsson | f67606a | 2009-03-28 04:07:16 +0000 | [diff] [blame] | 252 | } |
| 253 | |
Chris Lattner | c6fdc34 | 2008-01-12 07:05:38 +0000 | [diff] [blame] | 254 | /// ParseLinkage - We know that the current token is a string_literal |
| 255 | /// and just before that, that extern was seen. |
| 256 | /// |
| 257 | /// linkage-specification: [C++ 7.5p2: dcl.link] |
| 258 | /// 'extern' string-literal '{' declaration-seq[opt] '}' |
| 259 | /// 'extern' string-literal declaration |
| 260 | /// |
Chris Lattner | 7d64271 | 2010-11-09 20:15:55 +0000 | [diff] [blame] | 261 | Decl *Parser::ParseLinkage(ParsingDeclSpec &DS, unsigned Context) { |
Douglas Gregor | c19923d | 2008-11-21 16:10:08 +0000 | [diff] [blame] | 262 | assert(Tok.is(tok::string_literal) && "Not a string literal!"); |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 263 | llvm::SmallString<8> LangBuffer; |
Douglas Gregor | 453091c | 2010-03-16 22:30:13 +0000 | [diff] [blame] | 264 | bool Invalid = false; |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 265 | StringRef Lang = PP.getSpelling(Tok, LangBuffer, &Invalid); |
Douglas Gregor | 453091c | 2010-03-16 22:30:13 +0000 | [diff] [blame] | 266 | if (Invalid) |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 267 | return 0; |
Chris Lattner | c6fdc34 | 2008-01-12 07:05:38 +0000 | [diff] [blame] | 268 | |
| 269 | SourceLocation Loc = ConsumeStringToken(); |
Chris Lattner | c6fdc34 | 2008-01-12 07:05:38 +0000 | [diff] [blame] | 270 | |
Douglas Gregor | 074149e | 2009-01-05 19:45:36 +0000 | [diff] [blame] | 271 | ParseScope LinkageScope(this, Scope::DeclScope); |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 272 | Decl *LinkageSpec |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 273 | = Actions.ActOnStartLinkageSpecification(getCurScope(), |
Abramo Bagnara | a2026c9 | 2011-03-08 16:41:52 +0000 | [diff] [blame] | 274 | DS.getSourceRange().getBegin(), |
Benjamin Kramer | d566381 | 2010-05-03 13:08:54 +0000 | [diff] [blame] | 275 | Loc, Lang, |
Abramo Bagnara | a2026c9 | 2011-03-08 16:41:52 +0000 | [diff] [blame] | 276 | Tok.is(tok::l_brace) ? Tok.getLocation() |
Douglas Gregor | 074149e | 2009-01-05 19:45:36 +0000 | [diff] [blame] | 277 | : SourceLocation()); |
| 278 | |
John McCall | 0b7e678 | 2011-03-24 11:26:52 +0000 | [diff] [blame] | 279 | ParsedAttributesWithRange attrs(AttrFactory); |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 280 | MaybeParseCXX0XAttributes(attrs); |
| 281 | MaybeParseMicrosoftAttributes(attrs); |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 282 | |
Douglas Gregor | 074149e | 2009-01-05 19:45:36 +0000 | [diff] [blame] | 283 | if (Tok.isNot(tok::l_brace)) { |
Abramo Bagnara | f41e33c | 2011-05-01 16:25:54 +0000 | [diff] [blame] | 284 | // Reset the source range in DS, as the leading "extern" |
| 285 | // does not really belong to the inner declaration ... |
| 286 | DS.SetRangeStart(SourceLocation()); |
| 287 | DS.SetRangeEnd(SourceLocation()); |
| 288 | // ... but anyway remember that such an "extern" was seen. |
Abramo Bagnara | 35f9a19 | 2010-07-30 16:47:02 +0000 | [diff] [blame] | 289 | DS.setExternInLinkageSpec(true); |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 290 | ParseExternalDeclaration(attrs, &DS); |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 291 | return Actions.ActOnFinishLinkageSpecification(getCurScope(), LinkageSpec, |
Douglas Gregor | 074149e | 2009-01-05 19:45:36 +0000 | [diff] [blame] | 292 | SourceLocation()); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 293 | } |
Douglas Gregor | f44515a | 2008-12-16 22:23:02 +0000 | [diff] [blame] | 294 | |
Douglas Gregor | 63a0113 | 2010-02-07 08:38:28 +0000 | [diff] [blame] | 295 | DS.abort(); |
| 296 | |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 297 | ProhibitAttributes(attrs); |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 298 | |
Douglas Gregor | f44515a | 2008-12-16 22:23:02 +0000 | [diff] [blame] | 299 | SourceLocation LBrace = ConsumeBrace(); |
Douglas Gregor | f44515a | 2008-12-16 22:23:02 +0000 | [diff] [blame] | 300 | while (Tok.isNot(tok::r_brace) && Tok.isNot(tok::eof)) { |
John McCall | 0b7e678 | 2011-03-24 11:26:52 +0000 | [diff] [blame] | 301 | ParsedAttributesWithRange attrs(AttrFactory); |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 302 | MaybeParseCXX0XAttributes(attrs); |
| 303 | MaybeParseMicrosoftAttributes(attrs); |
| 304 | ParseExternalDeclaration(attrs); |
Chris Lattner | c6fdc34 | 2008-01-12 07:05:38 +0000 | [diff] [blame] | 305 | } |
| 306 | |
Douglas Gregor | f44515a | 2008-12-16 22:23:02 +0000 | [diff] [blame] | 307 | SourceLocation RBrace = MatchRHSPunctuation(tok::r_brace, LBrace); |
Chris Lattner | 7d64271 | 2010-11-09 20:15:55 +0000 | [diff] [blame] | 308 | return Actions.ActOnFinishLinkageSpecification(getCurScope(), LinkageSpec, |
| 309 | RBrace); |
Chris Lattner | c6fdc34 | 2008-01-12 07:05:38 +0000 | [diff] [blame] | 310 | } |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 311 | |
Douglas Gregor | f780abc | 2008-12-30 03:27:21 +0000 | [diff] [blame] | 312 | /// ParseUsingDirectiveOrDeclaration - Parse C++ using using-declaration or |
| 313 | /// using-directive. Assumes that current token is 'using'. |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 314 | Decl *Parser::ParseUsingDirectiveOrDeclaration(unsigned Context, |
John McCall | 78b8105 | 2010-11-10 02:40:36 +0000 | [diff] [blame] | 315 | const ParsedTemplateInfo &TemplateInfo, |
| 316 | SourceLocation &DeclEnd, |
Richard Smith | c89edf5 | 2011-07-01 19:46:12 +0000 | [diff] [blame] | 317 | ParsedAttributesWithRange &attrs, |
| 318 | Decl **OwnedType) { |
Douglas Gregor | f780abc | 2008-12-30 03:27:21 +0000 | [diff] [blame] | 319 | assert(Tok.is(tok::kw_using) && "Not using token"); |
Fariborz Jahanian | 9735c5e | 2011-08-22 17:59:19 +0000 | [diff] [blame^] | 320 | ObjCDeclContextSwitch ObjCDC(*this); |
| 321 | |
Douglas Gregor | f780abc | 2008-12-30 03:27:21 +0000 | [diff] [blame] | 322 | // Eat 'using'. |
| 323 | SourceLocation UsingLoc = ConsumeToken(); |
| 324 | |
Douglas Gregor | 49f40bd | 2009-09-18 19:03:04 +0000 | [diff] [blame] | 325 | if (Tok.is(tok::code_completion)) { |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 326 | Actions.CodeCompleteUsing(getCurScope()); |
Douglas Gregor | dc84534 | 2010-05-25 05:58:43 +0000 | [diff] [blame] | 327 | ConsumeCodeCompletionToken(); |
Douglas Gregor | 49f40bd | 2009-09-18 19:03:04 +0000 | [diff] [blame] | 328 | } |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 329 | |
John McCall | 78b8105 | 2010-11-10 02:40:36 +0000 | [diff] [blame] | 330 | // 'using namespace' means this is a using-directive. |
| 331 | if (Tok.is(tok::kw_namespace)) { |
| 332 | // Template parameters are always an error here. |
| 333 | if (TemplateInfo.Kind) { |
| 334 | SourceRange R = TemplateInfo.getSourceRange(); |
| 335 | Diag(UsingLoc, diag::err_templated_using_directive) |
| 336 | << R << FixItHint::CreateRemoval(R); |
| 337 | } |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 338 | |
Fariborz Jahanian | 9735c5e | 2011-08-22 17:59:19 +0000 | [diff] [blame^] | 339 | return ParseUsingDirective(Context, UsingLoc, DeclEnd, attrs); |
John McCall | 78b8105 | 2010-11-10 02:40:36 +0000 | [diff] [blame] | 340 | } |
| 341 | |
Richard Smith | 162e1c1 | 2011-04-15 14:24:37 +0000 | [diff] [blame] | 342 | // Otherwise, it must be a using-declaration or an alias-declaration. |
John McCall | 78b8105 | 2010-11-10 02:40:36 +0000 | [diff] [blame] | 343 | |
| 344 | // Using declarations can't have attributes. |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 345 | ProhibitAttributes(attrs); |
Chris Lattner | 2f27477 | 2009-01-06 06:55:51 +0000 | [diff] [blame] | 346 | |
Fariborz Jahanian | 9735c5e | 2011-08-22 17:59:19 +0000 | [diff] [blame^] | 347 | return ParseUsingDeclaration(Context, TemplateInfo, UsingLoc, DeclEnd, |
Fariborz Jahanian | a28948f | 2011-08-22 15:54:49 +0000 | [diff] [blame] | 348 | AS_none, OwnedType); |
Douglas Gregor | f780abc | 2008-12-30 03:27:21 +0000 | [diff] [blame] | 349 | } |
| 350 | |
| 351 | /// ParseUsingDirective - Parse C++ using-directive, assumes |
| 352 | /// that current token is 'namespace' and 'using' was already parsed. |
| 353 | /// |
| 354 | /// using-directive: [C++ 7.3.p4: namespace.udir] |
| 355 | /// 'using' 'namespace' ::[opt] nested-name-specifier[opt] |
| 356 | /// namespace-name ; |
| 357 | /// [GNU] using-directive: |
| 358 | /// 'using' 'namespace' ::[opt] nested-name-specifier[opt] |
| 359 | /// namespace-name attributes[opt] ; |
| 360 | /// |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 361 | Decl *Parser::ParseUsingDirective(unsigned Context, |
John McCall | 78b8105 | 2010-11-10 02:40:36 +0000 | [diff] [blame] | 362 | SourceLocation UsingLoc, |
| 363 | SourceLocation &DeclEnd, |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 364 | ParsedAttributes &attrs) { |
Douglas Gregor | f780abc | 2008-12-30 03:27:21 +0000 | [diff] [blame] | 365 | assert(Tok.is(tok::kw_namespace) && "Not 'namespace' token"); |
| 366 | |
| 367 | // Eat 'namespace'. |
| 368 | SourceLocation NamespcLoc = ConsumeToken(); |
| 369 | |
Douglas Gregor | 49f40bd | 2009-09-18 19:03:04 +0000 | [diff] [blame] | 370 | if (Tok.is(tok::code_completion)) { |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 371 | Actions.CodeCompleteUsingDirective(getCurScope()); |
Douglas Gregor | dc84534 | 2010-05-25 05:58:43 +0000 | [diff] [blame] | 372 | ConsumeCodeCompletionToken(); |
Douglas Gregor | 49f40bd | 2009-09-18 19:03:04 +0000 | [diff] [blame] | 373 | } |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 374 | |
Douglas Gregor | f780abc | 2008-12-30 03:27:21 +0000 | [diff] [blame] | 375 | CXXScopeSpec SS; |
| 376 | // Parse (optional) nested-name-specifier. |
John McCall | b3d8748 | 2010-08-24 05:47:05 +0000 | [diff] [blame] | 377 | ParseOptionalCXXScopeSpecifier(SS, ParsedType(), false); |
Douglas Gregor | f780abc | 2008-12-30 03:27:21 +0000 | [diff] [blame] | 378 | |
Douglas Gregor | f780abc | 2008-12-30 03:27:21 +0000 | [diff] [blame] | 379 | IdentifierInfo *NamespcName = 0; |
| 380 | SourceLocation IdentLoc = SourceLocation(); |
| 381 | |
| 382 | // Parse namespace-name. |
Chris Lattner | 823c44e | 2009-01-06 07:27:21 +0000 | [diff] [blame] | 383 | if (SS.isInvalid() || Tok.isNot(tok::identifier)) { |
Douglas Gregor | f780abc | 2008-12-30 03:27:21 +0000 | [diff] [blame] | 384 | Diag(Tok, diag::err_expected_namespace_name); |
| 385 | // If there was invalid namespace name, skip to end of decl, and eat ';'. |
| 386 | SkipUntil(tok::semi); |
| 387 | // FIXME: Are there cases, when we would like to call ActOnUsingDirective? |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 388 | return 0; |
Douglas Gregor | f780abc | 2008-12-30 03:27:21 +0000 | [diff] [blame] | 389 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 390 | |
Chris Lattner | 823c44e | 2009-01-06 07:27:21 +0000 | [diff] [blame] | 391 | // Parse identifier. |
| 392 | NamespcName = Tok.getIdentifierInfo(); |
| 393 | IdentLoc = ConsumeToken(); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 394 | |
Chris Lattner | 823c44e | 2009-01-06 07:27:21 +0000 | [diff] [blame] | 395 | // Parse (optional) attributes (most likely GNU strong-using extension). |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 396 | bool GNUAttr = false; |
| 397 | if (Tok.is(tok::kw___attribute)) { |
| 398 | GNUAttr = true; |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 399 | ParseGNUAttributes(attrs); |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 400 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 401 | |
Chris Lattner | 823c44e | 2009-01-06 07:27:21 +0000 | [diff] [blame] | 402 | // Eat ';'. |
Chris Lattner | 97144fc | 2009-04-02 04:16:50 +0000 | [diff] [blame] | 403 | DeclEnd = Tok.getLocation(); |
Chris Lattner | 6869d8e | 2009-06-14 00:07:48 +0000 | [diff] [blame] | 404 | ExpectAndConsume(tok::semi, |
Douglas Gregor | 9ba23b4 | 2010-09-07 15:23:11 +0000 | [diff] [blame] | 405 | GNUAttr ? diag::err_expected_semi_after_attribute_list |
| 406 | : diag::err_expected_semi_after_namespace_name, |
| 407 | "", tok::semi); |
Douglas Gregor | f780abc | 2008-12-30 03:27:21 +0000 | [diff] [blame] | 408 | |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 409 | return Actions.ActOnUsingDirective(getCurScope(), UsingLoc, NamespcLoc, SS, |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 410 | IdentLoc, NamespcName, attrs.getList()); |
Douglas Gregor | f780abc | 2008-12-30 03:27:21 +0000 | [diff] [blame] | 411 | } |
| 412 | |
Richard Smith | 162e1c1 | 2011-04-15 14:24:37 +0000 | [diff] [blame] | 413 | /// ParseUsingDeclaration - Parse C++ using-declaration or alias-declaration. |
| 414 | /// Assumes that 'using' was already seen. |
Douglas Gregor | f780abc | 2008-12-30 03:27:21 +0000 | [diff] [blame] | 415 | /// |
| 416 | /// using-declaration: [C++ 7.3.p3: namespace.udecl] |
| 417 | /// 'using' 'typename'[opt] ::[opt] nested-name-specifier |
Douglas Gregor | 9cfbe48 | 2009-06-20 00:51:54 +0000 | [diff] [blame] | 418 | /// unqualified-id |
| 419 | /// 'using' :: unqualified-id |
Douglas Gregor | f780abc | 2008-12-30 03:27:21 +0000 | [diff] [blame] | 420 | /// |
Richard Smith | 162e1c1 | 2011-04-15 14:24:37 +0000 | [diff] [blame] | 421 | /// alias-declaration: C++0x [decl.typedef]p2 |
| 422 | /// 'using' identifier = type-id ; |
| 423 | /// |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 424 | Decl *Parser::ParseUsingDeclaration(unsigned Context, |
John McCall | 78b8105 | 2010-11-10 02:40:36 +0000 | [diff] [blame] | 425 | const ParsedTemplateInfo &TemplateInfo, |
| 426 | SourceLocation UsingLoc, |
| 427 | SourceLocation &DeclEnd, |
Richard Smith | c89edf5 | 2011-07-01 19:46:12 +0000 | [diff] [blame] | 428 | AccessSpecifier AS, |
| 429 | Decl **OwnedType) { |
Douglas Gregor | 9cfbe48 | 2009-06-20 00:51:54 +0000 | [diff] [blame] | 430 | CXXScopeSpec SS; |
John McCall | 7ba107a | 2009-11-18 02:36:19 +0000 | [diff] [blame] | 431 | SourceLocation TypenameLoc; |
Douglas Gregor | 9cfbe48 | 2009-06-20 00:51:54 +0000 | [diff] [blame] | 432 | bool IsTypeName; |
| 433 | |
| 434 | // Ignore optional 'typename'. |
Douglas Gregor | 12c118a | 2009-11-04 16:30:06 +0000 | [diff] [blame] | 435 | // FIXME: This is wrong; we should parse this as a typename-specifier. |
Douglas Gregor | 9cfbe48 | 2009-06-20 00:51:54 +0000 | [diff] [blame] | 436 | if (Tok.is(tok::kw_typename)) { |
John McCall | 7ba107a | 2009-11-18 02:36:19 +0000 | [diff] [blame] | 437 | TypenameLoc = Tok.getLocation(); |
Douglas Gregor | 9cfbe48 | 2009-06-20 00:51:54 +0000 | [diff] [blame] | 438 | ConsumeToken(); |
| 439 | IsTypeName = true; |
| 440 | } |
| 441 | else |
| 442 | IsTypeName = false; |
| 443 | |
| 444 | // Parse nested-name-specifier. |
John McCall | b3d8748 | 2010-08-24 05:47:05 +0000 | [diff] [blame] | 445 | ParseOptionalCXXScopeSpecifier(SS, ParsedType(), false); |
Douglas Gregor | 9cfbe48 | 2009-06-20 00:51:54 +0000 | [diff] [blame] | 446 | |
Douglas Gregor | 9cfbe48 | 2009-06-20 00:51:54 +0000 | [diff] [blame] | 447 | // Check nested-name specifier. |
| 448 | if (SS.isInvalid()) { |
| 449 | SkipUntil(tok::semi); |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 450 | return 0; |
Douglas Gregor | 9cfbe48 | 2009-06-20 00:51:54 +0000 | [diff] [blame] | 451 | } |
Douglas Gregor | 12c118a | 2009-11-04 16:30:06 +0000 | [diff] [blame] | 452 | |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 453 | // Parse the unqualified-id. We allow parsing of both constructor and |
Douglas Gregor | 12c118a | 2009-11-04 16:30:06 +0000 | [diff] [blame] | 454 | // destructor names and allow the action module to diagnose any semantic |
| 455 | // errors. |
| 456 | UnqualifiedId Name; |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 457 | if (ParseUnqualifiedId(SS, |
Douglas Gregor | 12c118a | 2009-11-04 16:30:06 +0000 | [diff] [blame] | 458 | /*EnteringContext=*/false, |
| 459 | /*AllowDestructorName=*/true, |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 460 | /*AllowConstructorName=*/true, |
John McCall | b3d8748 | 2010-08-24 05:47:05 +0000 | [diff] [blame] | 461 | ParsedType(), |
Douglas Gregor | 12c118a | 2009-11-04 16:30:06 +0000 | [diff] [blame] | 462 | Name)) { |
Douglas Gregor | 9cfbe48 | 2009-06-20 00:51:54 +0000 | [diff] [blame] | 463 | SkipUntil(tok::semi); |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 464 | return 0; |
Douglas Gregor | 9cfbe48 | 2009-06-20 00:51:54 +0000 | [diff] [blame] | 465 | } |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 466 | |
John McCall | 0b7e678 | 2011-03-24 11:26:52 +0000 | [diff] [blame] | 467 | ParsedAttributes attrs(AttrFactory); |
Richard Smith | 162e1c1 | 2011-04-15 14:24:37 +0000 | [diff] [blame] | 468 | |
| 469 | // Maybe this is an alias-declaration. |
| 470 | bool IsAliasDecl = Tok.is(tok::equal); |
| 471 | TypeResult TypeAlias; |
| 472 | if (IsAliasDecl) { |
Richard Smith | 3e4c6c4 | 2011-05-05 21:57:07 +0000 | [diff] [blame] | 473 | // TODO: Attribute support. C++0x attributes may appear before the equals. |
| 474 | // Where can GNU attributes appear? |
Richard Smith | 162e1c1 | 2011-04-15 14:24:37 +0000 | [diff] [blame] | 475 | ConsumeToken(); |
| 476 | |
| 477 | if (!getLang().CPlusPlus0x) |
| 478 | Diag(Tok.getLocation(), diag::ext_alias_declaration); |
| 479 | |
Richard Smith | 3e4c6c4 | 2011-05-05 21:57:07 +0000 | [diff] [blame] | 480 | // Type alias templates cannot be specialized. |
| 481 | int SpecKind = -1; |
Richard Smith | 536e9c1 | 2011-05-05 22:36:10 +0000 | [diff] [blame] | 482 | if (TemplateInfo.Kind == ParsedTemplateInfo::Template && |
| 483 | Name.getKind() == UnqualifiedId::IK_TemplateId) |
Richard Smith | 3e4c6c4 | 2011-05-05 21:57:07 +0000 | [diff] [blame] | 484 | SpecKind = 0; |
| 485 | if (TemplateInfo.Kind == ParsedTemplateInfo::ExplicitSpecialization) |
| 486 | SpecKind = 1; |
| 487 | if (TemplateInfo.Kind == ParsedTemplateInfo::ExplicitInstantiation) |
| 488 | SpecKind = 2; |
| 489 | if (SpecKind != -1) { |
| 490 | SourceRange Range; |
| 491 | if (SpecKind == 0) |
| 492 | Range = SourceRange(Name.TemplateId->LAngleLoc, |
| 493 | Name.TemplateId->RAngleLoc); |
| 494 | else |
| 495 | Range = TemplateInfo.getSourceRange(); |
| 496 | Diag(Range.getBegin(), diag::err_alias_declaration_specialization) |
| 497 | << SpecKind << Range; |
| 498 | SkipUntil(tok::semi); |
| 499 | return 0; |
| 500 | } |
| 501 | |
Richard Smith | 162e1c1 | 2011-04-15 14:24:37 +0000 | [diff] [blame] | 502 | // Name must be an identifier. |
| 503 | if (Name.getKind() != UnqualifiedId::IK_Identifier) { |
| 504 | Diag(Name.StartLocation, diag::err_alias_declaration_not_identifier); |
| 505 | // No removal fixit: can't recover from this. |
| 506 | SkipUntil(tok::semi); |
| 507 | return 0; |
| 508 | } else if (IsTypeName) |
| 509 | Diag(TypenameLoc, diag::err_alias_declaration_not_identifier) |
| 510 | << FixItHint::CreateRemoval(SourceRange(TypenameLoc, |
| 511 | SS.isNotEmpty() ? SS.getEndLoc() : TypenameLoc)); |
| 512 | else if (SS.isNotEmpty()) |
| 513 | Diag(SS.getBeginLoc(), diag::err_alias_declaration_not_identifier) |
| 514 | << FixItHint::CreateRemoval(SS.getRange()); |
| 515 | |
Richard Smith | 3e4c6c4 | 2011-05-05 21:57:07 +0000 | [diff] [blame] | 516 | TypeAlias = ParseTypeName(0, TemplateInfo.Kind ? |
| 517 | Declarator::AliasTemplateContext : |
Richard Smith | c89edf5 | 2011-07-01 19:46:12 +0000 | [diff] [blame] | 518 | Declarator::AliasDeclContext, 0, AS, OwnedType); |
Richard Smith | 162e1c1 | 2011-04-15 14:24:37 +0000 | [diff] [blame] | 519 | } else |
| 520 | // Parse (optional) attributes (most likely GNU strong-using extension). |
| 521 | MaybeParseGNUAttributes(attrs); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 522 | |
Douglas Gregor | 9cfbe48 | 2009-06-20 00:51:54 +0000 | [diff] [blame] | 523 | // Eat ';'. |
| 524 | DeclEnd = Tok.getLocation(); |
| 525 | ExpectAndConsume(tok::semi, diag::err_expected_semi_after, |
Richard Smith | 162e1c1 | 2011-04-15 14:24:37 +0000 | [diff] [blame] | 526 | !attrs.empty() ? "attributes list" : |
| 527 | IsAliasDecl ? "alias declaration" : "using declaration", |
Douglas Gregor | 12c118a | 2009-11-04 16:30:06 +0000 | [diff] [blame] | 528 | tok::semi); |
Douglas Gregor | 9cfbe48 | 2009-06-20 00:51:54 +0000 | [diff] [blame] | 529 | |
John McCall | 78b8105 | 2010-11-10 02:40:36 +0000 | [diff] [blame] | 530 | // Diagnose an attempt to declare a templated using-declaration. |
Richard Smith | 3e4c6c4 | 2011-05-05 21:57:07 +0000 | [diff] [blame] | 531 | // In C++0x, alias-declarations can be templates: |
Richard Smith | 162e1c1 | 2011-04-15 14:24:37 +0000 | [diff] [blame] | 532 | // template <...> using id = type; |
Richard Smith | 3e4c6c4 | 2011-05-05 21:57:07 +0000 | [diff] [blame] | 533 | if (TemplateInfo.Kind && !IsAliasDecl) { |
John McCall | 78b8105 | 2010-11-10 02:40:36 +0000 | [diff] [blame] | 534 | SourceRange R = TemplateInfo.getSourceRange(); |
| 535 | Diag(UsingLoc, diag::err_templated_using_declaration) |
| 536 | << R << FixItHint::CreateRemoval(R); |
| 537 | |
| 538 | // Unfortunately, we have to bail out instead of recovering by |
| 539 | // ignoring the parameters, just in case the nested name specifier |
| 540 | // depends on the parameters. |
| 541 | return 0; |
| 542 | } |
| 543 | |
Richard Smith | 3e4c6c4 | 2011-05-05 21:57:07 +0000 | [diff] [blame] | 544 | if (IsAliasDecl) { |
| 545 | TemplateParameterLists *TemplateParams = TemplateInfo.TemplateParams; |
| 546 | MultiTemplateParamsArg TemplateParamsArg(Actions, |
| 547 | TemplateParams ? TemplateParams->data() : 0, |
| 548 | TemplateParams ? TemplateParams->size() : 0); |
| 549 | return Actions.ActOnAliasDeclaration(getCurScope(), AS, TemplateParamsArg, |
| 550 | UsingLoc, Name, TypeAlias); |
| 551 | } |
Richard Smith | 162e1c1 | 2011-04-15 14:24:37 +0000 | [diff] [blame] | 552 | |
Ted Kremenek | 8113ecf | 2010-11-10 05:59:39 +0000 | [diff] [blame] | 553 | return Actions.ActOnUsingDeclaration(getCurScope(), AS, true, UsingLoc, SS, |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 554 | Name, attrs.getList(), |
| 555 | IsTypeName, TypenameLoc); |
Douglas Gregor | f780abc | 2008-12-30 03:27:21 +0000 | [diff] [blame] | 556 | } |
| 557 | |
Peter Collingbourne | c6eb44b | 2011-04-15 00:35:57 +0000 | [diff] [blame] | 558 | /// ParseStaticAssertDeclaration - Parse C++0x or C1X static_assert-declaration. |
Anders Carlsson | 511d7ab | 2009-03-11 16:27:10 +0000 | [diff] [blame] | 559 | /// |
Peter Collingbourne | c6eb44b | 2011-04-15 00:35:57 +0000 | [diff] [blame] | 560 | /// [C++0x] static_assert-declaration: |
| 561 | /// static_assert ( constant-expression , string-literal ) ; |
| 562 | /// |
| 563 | /// [C1X] static_assert-declaration: |
| 564 | /// _Static_assert ( constant-expression , string-literal ) ; |
Anders Carlsson | 511d7ab | 2009-03-11 16:27:10 +0000 | [diff] [blame] | 565 | /// |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 566 | Decl *Parser::ParseStaticAssertDeclaration(SourceLocation &DeclEnd){ |
Peter Collingbourne | c6eb44b | 2011-04-15 00:35:57 +0000 | [diff] [blame] | 567 | assert((Tok.is(tok::kw_static_assert) || Tok.is(tok::kw__Static_assert)) && |
| 568 | "Not a static_assert declaration"); |
| 569 | |
| 570 | if (Tok.is(tok::kw__Static_assert) && !getLang().C1X) |
| 571 | Diag(Tok, diag::ext_c1x_static_assert); |
| 572 | |
Anders Carlsson | 511d7ab | 2009-03-11 16:27:10 +0000 | [diff] [blame] | 573 | SourceLocation StaticAssertLoc = ConsumeToken(); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 574 | |
Anders Carlsson | 511d7ab | 2009-03-11 16:27:10 +0000 | [diff] [blame] | 575 | if (Tok.isNot(tok::l_paren)) { |
| 576 | Diag(Tok, diag::err_expected_lparen); |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 577 | return 0; |
Anders Carlsson | 511d7ab | 2009-03-11 16:27:10 +0000 | [diff] [blame] | 578 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 579 | |
Anders Carlsson | 511d7ab | 2009-03-11 16:27:10 +0000 | [diff] [blame] | 580 | SourceLocation LParenLoc = ConsumeParen(); |
Douglas Gregor | e0762c9 | 2009-06-19 23:52:42 +0000 | [diff] [blame] | 581 | |
John McCall | 60d7b3a | 2010-08-24 06:29:42 +0000 | [diff] [blame] | 582 | ExprResult AssertExpr(ParseConstantExpression()); |
Anders Carlsson | 511d7ab | 2009-03-11 16:27:10 +0000 | [diff] [blame] | 583 | if (AssertExpr.isInvalid()) { |
| 584 | SkipUntil(tok::semi); |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 585 | return 0; |
Anders Carlsson | 511d7ab | 2009-03-11 16:27:10 +0000 | [diff] [blame] | 586 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 587 | |
Anders Carlsson | ad5f960 | 2009-03-13 23:29:20 +0000 | [diff] [blame] | 588 | if (ExpectAndConsume(tok::comma, diag::err_expected_comma, "", tok::semi)) |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 589 | return 0; |
Anders Carlsson | ad5f960 | 2009-03-13 23:29:20 +0000 | [diff] [blame] | 590 | |
Anders Carlsson | 511d7ab | 2009-03-11 16:27:10 +0000 | [diff] [blame] | 591 | if (Tok.isNot(tok::string_literal)) { |
| 592 | Diag(Tok, diag::err_expected_string_literal); |
| 593 | SkipUntil(tok::semi); |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 594 | return 0; |
Anders Carlsson | 511d7ab | 2009-03-11 16:27:10 +0000 | [diff] [blame] | 595 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 596 | |
John McCall | 60d7b3a | 2010-08-24 06:29:42 +0000 | [diff] [blame] | 597 | ExprResult AssertMessage(ParseStringLiteralExpression()); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 598 | if (AssertMessage.isInvalid()) |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 599 | return 0; |
Anders Carlsson | 511d7ab | 2009-03-11 16:27:10 +0000 | [diff] [blame] | 600 | |
Abramo Bagnara | a2026c9 | 2011-03-08 16:41:52 +0000 | [diff] [blame] | 601 | SourceLocation RParenLoc = MatchRHSPunctuation(tok::r_paren, LParenLoc); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 602 | |
Chris Lattner | 97144fc | 2009-04-02 04:16:50 +0000 | [diff] [blame] | 603 | DeclEnd = Tok.getLocation(); |
Douglas Gregor | 9ba23b4 | 2010-09-07 15:23:11 +0000 | [diff] [blame] | 604 | ExpectAndConsumeSemi(diag::err_expected_semi_after_static_assert); |
Anders Carlsson | 511d7ab | 2009-03-11 16:27:10 +0000 | [diff] [blame] | 605 | |
John McCall | 9ae2f07 | 2010-08-23 23:25:46 +0000 | [diff] [blame] | 606 | return Actions.ActOnStaticAssertDeclaration(StaticAssertLoc, |
| 607 | AssertExpr.take(), |
Abramo Bagnara | a2026c9 | 2011-03-08 16:41:52 +0000 | [diff] [blame] | 608 | AssertMessage.take(), |
| 609 | RParenLoc); |
Anders Carlsson | 511d7ab | 2009-03-11 16:27:10 +0000 | [diff] [blame] | 610 | } |
| 611 | |
Anders Carlsson | 6fd634f | 2009-06-24 17:47:40 +0000 | [diff] [blame] | 612 | /// ParseDecltypeSpecifier - Parse a C++0x decltype specifier. |
| 613 | /// |
| 614 | /// 'decltype' ( expression ) |
| 615 | /// |
| 616 | void Parser::ParseDecltypeSpecifier(DeclSpec &DS) { |
| 617 | assert(Tok.is(tok::kw_decltype) && "Not a decltype specifier"); |
| 618 | |
| 619 | SourceLocation StartLoc = ConsumeToken(); |
| 620 | SourceLocation LParenLoc = Tok.getLocation(); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 621 | |
| 622 | if (ExpectAndConsume(tok::l_paren, diag::err_expected_lparen_after, |
Anders Carlsson | 6fd634f | 2009-06-24 17:47:40 +0000 | [diff] [blame] | 623 | "decltype")) { |
| 624 | SkipUntil(tok::r_paren); |
| 625 | return; |
| 626 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 627 | |
Anders Carlsson | 6fd634f | 2009-06-24 17:47:40 +0000 | [diff] [blame] | 628 | // Parse the expression |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 629 | |
Anders Carlsson | 6fd634f | 2009-06-24 17:47:40 +0000 | [diff] [blame] | 630 | // C++0x [dcl.type.simple]p4: |
| 631 | // The operand of the decltype specifier is an unevaluated operand. |
| 632 | EnterExpressionEvaluationContext Unevaluated(Actions, |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 633 | Sema::Unevaluated); |
John McCall | 60d7b3a | 2010-08-24 06:29:42 +0000 | [diff] [blame] | 634 | ExprResult Result = ParseExpression(); |
Anders Carlsson | 6fd634f | 2009-06-24 17:47:40 +0000 | [diff] [blame] | 635 | if (Result.isInvalid()) { |
| 636 | SkipUntil(tok::r_paren); |
| 637 | return; |
| 638 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 639 | |
Anders Carlsson | 6fd634f | 2009-06-24 17:47:40 +0000 | [diff] [blame] | 640 | // Match the ')' |
| 641 | SourceLocation RParenLoc; |
| 642 | if (Tok.is(tok::r_paren)) |
| 643 | RParenLoc = ConsumeParen(); |
| 644 | else |
| 645 | MatchRHSPunctuation(tok::r_paren, LParenLoc); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 646 | |
Anders Carlsson | 6fd634f | 2009-06-24 17:47:40 +0000 | [diff] [blame] | 647 | if (RParenLoc.isInvalid()) |
| 648 | return; |
| 649 | |
| 650 | const char *PrevSpec = 0; |
John McCall | fec5401 | 2009-08-03 20:12:06 +0000 | [diff] [blame] | 651 | unsigned DiagID; |
Anders Carlsson | 6fd634f | 2009-06-24 17:47:40 +0000 | [diff] [blame] | 652 | // Check for duplicate type specifiers (e.g. "int decltype(a)"). |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 653 | if (DS.SetTypeSpecType(DeclSpec::TST_decltype, StartLoc, PrevSpec, |
John McCall | fec5401 | 2009-08-03 20:12:06 +0000 | [diff] [blame] | 654 | DiagID, Result.release())) |
| 655 | Diag(StartLoc, DiagID) << PrevSpec; |
Anders Carlsson | 6fd634f | 2009-06-24 17:47:40 +0000 | [diff] [blame] | 656 | } |
| 657 | |
Sean Hunt | db5d44b | 2011-05-19 05:37:45 +0000 | [diff] [blame] | 658 | void Parser::ParseUnderlyingTypeSpecifier(DeclSpec &DS) { |
| 659 | assert(Tok.is(tok::kw___underlying_type) && |
| 660 | "Not an underlying type specifier"); |
| 661 | |
| 662 | SourceLocation StartLoc = ConsumeToken(); |
| 663 | SourceLocation LParenLoc = Tok.getLocation(); |
| 664 | |
| 665 | if (ExpectAndConsume(tok::l_paren, diag::err_expected_lparen_after, |
| 666 | "__underlying_type")) { |
| 667 | SkipUntil(tok::r_paren); |
| 668 | return; |
| 669 | } |
| 670 | |
| 671 | TypeResult Result = ParseTypeName(); |
| 672 | if (Result.isInvalid()) { |
| 673 | SkipUntil(tok::r_paren); |
| 674 | return; |
| 675 | } |
| 676 | |
| 677 | // Match the ')' |
| 678 | SourceLocation RParenLoc; |
| 679 | if (Tok.is(tok::r_paren)) |
| 680 | RParenLoc = ConsumeParen(); |
| 681 | else |
| 682 | MatchRHSPunctuation(tok::r_paren, LParenLoc); |
| 683 | |
| 684 | if (RParenLoc.isInvalid()) |
| 685 | return; |
| 686 | |
| 687 | const char *PrevSpec = 0; |
| 688 | unsigned DiagID; |
Sean Hunt | ca63c20 | 2011-05-24 22:41:36 +0000 | [diff] [blame] | 689 | if (DS.SetTypeSpecType(DeclSpec::TST_underlyingType, StartLoc, PrevSpec, |
Sean Hunt | db5d44b | 2011-05-19 05:37:45 +0000 | [diff] [blame] | 690 | DiagID, Result.release())) |
| 691 | Diag(StartLoc, DiagID) << PrevSpec; |
| 692 | } |
| 693 | |
Douglas Gregor | 42a552f | 2008-11-05 20:51:48 +0000 | [diff] [blame] | 694 | /// ParseClassName - Parse a C++ class-name, which names a class. Note |
| 695 | /// that we only check that the result names a type; semantic analysis |
| 696 | /// 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] | 697 | /// either a type or NULL, depending on whether a type name was |
Douglas Gregor | 42a552f | 2008-11-05 20:51:48 +0000 | [diff] [blame] | 698 | /// found. |
| 699 | /// |
| 700 | /// class-name: [C++ 9.1] |
| 701 | /// identifier |
Douglas Gregor | 7f43d67 | 2009-02-25 23:52:28 +0000 | [diff] [blame] | 702 | /// simple-template-id |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 703 | /// |
Douglas Gregor | 31a19b6 | 2009-04-01 21:51:26 +0000 | [diff] [blame] | 704 | Parser::TypeResult Parser::ParseClassName(SourceLocation &EndLocation, |
Douglas Gregor | 059101f | 2011-03-02 00:47:37 +0000 | [diff] [blame] | 705 | CXXScopeSpec &SS) { |
Douglas Gregor | 7f43d67 | 2009-02-25 23:52:28 +0000 | [diff] [blame] | 706 | // Check whether we have a template-id that names a type. |
| 707 | if (Tok.is(tok::annot_template_id)) { |
Argyrios Kyrtzidis | 25a7676 | 2011-06-22 06:09:49 +0000 | [diff] [blame] | 708 | TemplateIdAnnotation *TemplateId = takeTemplateIdAnnotation(Tok); |
Douglas Gregor | d9b600c | 2010-01-12 17:52:59 +0000 | [diff] [blame] | 709 | if (TemplateId->Kind == TNK_Type_template || |
| 710 | TemplateId->Kind == TNK_Dependent_template_name) { |
Douglas Gregor | 059101f | 2011-03-02 00:47:37 +0000 | [diff] [blame] | 711 | AnnotateTemplateIdTokenAsType(); |
Douglas Gregor | 7f43d67 | 2009-02-25 23:52:28 +0000 | [diff] [blame] | 712 | |
| 713 | assert(Tok.is(tok::annot_typename) && "template-id -> type failed"); |
John McCall | b3d8748 | 2010-08-24 05:47:05 +0000 | [diff] [blame] | 714 | ParsedType Type = getTypeAnnotation(Tok); |
Douglas Gregor | 7f43d67 | 2009-02-25 23:52:28 +0000 | [diff] [blame] | 715 | EndLocation = Tok.getAnnotationEndLoc(); |
| 716 | ConsumeToken(); |
Douglas Gregor | 31a19b6 | 2009-04-01 21:51:26 +0000 | [diff] [blame] | 717 | |
| 718 | if (Type) |
| 719 | return Type; |
| 720 | return true; |
Douglas Gregor | 7f43d67 | 2009-02-25 23:52:28 +0000 | [diff] [blame] | 721 | } |
| 722 | |
| 723 | // Fall through to produce an error below. |
| 724 | } |
| 725 | |
Douglas Gregor | 42a552f | 2008-11-05 20:51:48 +0000 | [diff] [blame] | 726 | if (Tok.isNot(tok::identifier)) { |
Chris Lattner | 1ab3b96 | 2008-11-18 07:48:38 +0000 | [diff] [blame] | 727 | Diag(Tok, diag::err_expected_class_name); |
Douglas Gregor | 31a19b6 | 2009-04-01 21:51:26 +0000 | [diff] [blame] | 728 | return true; |
Douglas Gregor | 42a552f | 2008-11-05 20:51:48 +0000 | [diff] [blame] | 729 | } |
| 730 | |
Douglas Gregor | 84d0a19 | 2010-01-12 21:28:44 +0000 | [diff] [blame] | 731 | IdentifierInfo *Id = Tok.getIdentifierInfo(); |
| 732 | SourceLocation IdLoc = ConsumeToken(); |
| 733 | |
| 734 | if (Tok.is(tok::less)) { |
| 735 | // It looks the user intended to write a template-id here, but the |
| 736 | // template-name was wrong. Try to fix that. |
| 737 | TemplateNameKind TNK = TNK_Type_template; |
| 738 | TemplateTy Template; |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 739 | if (!Actions.DiagnoseUnknownTemplateName(*Id, IdLoc, getCurScope(), |
Douglas Gregor | 059101f | 2011-03-02 00:47:37 +0000 | [diff] [blame] | 740 | &SS, Template, TNK)) { |
Douglas Gregor | 84d0a19 | 2010-01-12 21:28:44 +0000 | [diff] [blame] | 741 | Diag(IdLoc, diag::err_unknown_template_name) |
| 742 | << Id; |
| 743 | } |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 744 | |
Douglas Gregor | 84d0a19 | 2010-01-12 21:28:44 +0000 | [diff] [blame] | 745 | if (!Template) |
| 746 | return true; |
| 747 | |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 748 | // Form the template name |
Douglas Gregor | 84d0a19 | 2010-01-12 21:28:44 +0000 | [diff] [blame] | 749 | UnqualifiedId TemplateName; |
| 750 | TemplateName.setIdentifier(Id, IdLoc); |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 751 | |
Douglas Gregor | 84d0a19 | 2010-01-12 21:28:44 +0000 | [diff] [blame] | 752 | // Parse the full template-id, then turn it into a type. |
| 753 | if (AnnotateTemplateIdToken(Template, TNK, SS, TemplateName, |
| 754 | SourceLocation(), true)) |
| 755 | return true; |
| 756 | if (TNK == TNK_Dependent_template_name) |
Douglas Gregor | 059101f | 2011-03-02 00:47:37 +0000 | [diff] [blame] | 757 | AnnotateTemplateIdTokenAsType(); |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 758 | |
Douglas Gregor | 84d0a19 | 2010-01-12 21:28:44 +0000 | [diff] [blame] | 759 | // If we didn't end up with a typename token, there's nothing more we |
| 760 | // can do. |
| 761 | if (Tok.isNot(tok::annot_typename)) |
| 762 | return true; |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 763 | |
Douglas Gregor | 84d0a19 | 2010-01-12 21:28:44 +0000 | [diff] [blame] | 764 | // Retrieve the type from the annotation token, consume that token, and |
| 765 | // return. |
| 766 | EndLocation = Tok.getAnnotationEndLoc(); |
John McCall | b3d8748 | 2010-08-24 05:47:05 +0000 | [diff] [blame] | 767 | ParsedType Type = getTypeAnnotation(Tok); |
Douglas Gregor | 84d0a19 | 2010-01-12 21:28:44 +0000 | [diff] [blame] | 768 | ConsumeToken(); |
| 769 | return Type; |
| 770 | } |
| 771 | |
Douglas Gregor | 42a552f | 2008-11-05 20:51:48 +0000 | [diff] [blame] | 772 | // We have an identifier; check whether it is actually a type. |
Douglas Gregor | 059101f | 2011-03-02 00:47:37 +0000 | [diff] [blame] | 773 | ParsedType Type = Actions.getTypeName(*Id, IdLoc, getCurScope(), &SS, true, |
Douglas Gregor | 9e87687 | 2011-03-01 18:12:44 +0000 | [diff] [blame] | 774 | false, ParsedType(), |
| 775 | /*NonTrivialTypeSourceInfo=*/true); |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 776 | if (!Type) { |
Douglas Gregor | 124b878 | 2010-02-16 19:09:40 +0000 | [diff] [blame] | 777 | Diag(IdLoc, diag::err_expected_class_name); |
Douglas Gregor | 31a19b6 | 2009-04-01 21:51:26 +0000 | [diff] [blame] | 778 | return true; |
Douglas Gregor | 42a552f | 2008-11-05 20:51:48 +0000 | [diff] [blame] | 779 | } |
| 780 | |
| 781 | // Consume the identifier. |
Douglas Gregor | 84d0a19 | 2010-01-12 21:28:44 +0000 | [diff] [blame] | 782 | EndLocation = IdLoc; |
Nick Lewycky | 5606220 | 2010-07-26 16:56:01 +0000 | [diff] [blame] | 783 | |
| 784 | // Fake up a Declarator to use with ActOnTypeName. |
John McCall | 0b7e678 | 2011-03-24 11:26:52 +0000 | [diff] [blame] | 785 | DeclSpec DS(AttrFactory); |
Nick Lewycky | 5606220 | 2010-07-26 16:56:01 +0000 | [diff] [blame] | 786 | DS.SetRangeStart(IdLoc); |
| 787 | DS.SetRangeEnd(EndLocation); |
Douglas Gregor | 059101f | 2011-03-02 00:47:37 +0000 | [diff] [blame] | 788 | DS.getTypeSpecScope() = SS; |
Nick Lewycky | 5606220 | 2010-07-26 16:56:01 +0000 | [diff] [blame] | 789 | |
| 790 | const char *PrevSpec = 0; |
| 791 | unsigned DiagID; |
| 792 | DS.SetTypeSpecType(TST_typename, IdLoc, PrevSpec, DiagID, Type); |
| 793 | |
| 794 | Declarator DeclaratorInfo(DS, Declarator::TypeNameContext); |
| 795 | return Actions.ActOnTypeName(getCurScope(), DeclaratorInfo); |
Douglas Gregor | 42a552f | 2008-11-05 20:51:48 +0000 | [diff] [blame] | 796 | } |
| 797 | |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 798 | /// ParseClassSpecifier - Parse a C++ class-specifier [C++ class] or |
| 799 | /// elaborated-type-specifier [C++ dcl.type.elab]; we can't tell which |
| 800 | /// 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] | 801 | /// cannot start a definition. If SuppressDeclarations is true, we do know. |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 802 | /// |
| 803 | /// class-specifier: [C++ class] |
| 804 | /// class-head '{' member-specification[opt] '}' |
| 805 | /// class-head '{' member-specification[opt] '}' attributes[opt] |
| 806 | /// class-head: |
| 807 | /// class-key identifier[opt] base-clause[opt] |
| 808 | /// class-key nested-name-specifier identifier base-clause[opt] |
| 809 | /// class-key nested-name-specifier[opt] simple-template-id |
| 810 | /// base-clause[opt] |
| 811 | /// [GNU] class-key attributes[opt] identifier[opt] base-clause[opt] |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 812 | /// [GNU] class-key attributes[opt] nested-name-specifier |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 813 | /// identifier base-clause[opt] |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 814 | /// [GNU] class-key attributes[opt] nested-name-specifier[opt] |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 815 | /// simple-template-id base-clause[opt] |
| 816 | /// class-key: |
| 817 | /// 'class' |
| 818 | /// 'struct' |
| 819 | /// 'union' |
| 820 | /// |
| 821 | /// elaborated-type-specifier: [C++ dcl.type.elab] |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 822 | /// class-key ::[opt] nested-name-specifier[opt] identifier |
| 823 | /// class-key ::[opt] nested-name-specifier[opt] 'template'[opt] |
| 824 | /// simple-template-id |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 825 | /// |
| 826 | /// Note that the C++ class-specifier and elaborated-type-specifier, |
| 827 | /// together, subsume the C99 struct-or-union-specifier: |
| 828 | /// |
| 829 | /// struct-or-union-specifier: [C99 6.7.2.1] |
| 830 | /// struct-or-union identifier[opt] '{' struct-contents '}' |
| 831 | /// struct-or-union identifier |
| 832 | /// [GNU] struct-or-union attributes[opt] identifier[opt] '{' struct-contents |
| 833 | /// '}' attributes[opt] |
| 834 | /// [GNU] struct-or-union attributes[opt] identifier |
| 835 | /// struct-or-union: |
| 836 | /// 'struct' |
| 837 | /// 'union' |
Chris Lattner | 4c97d76 | 2009-04-12 21:49:30 +0000 | [diff] [blame] | 838 | void Parser::ParseClassSpecifier(tok::TokenKind TagTokKind, |
| 839 | SourceLocation StartLoc, DeclSpec &DS, |
Douglas Gregor | 4d9a16f | 2009-05-12 23:25:50 +0000 | [diff] [blame] | 840 | const ParsedTemplateInfo &TemplateInfo, |
Sebastian Redl | d9bafa7 | 2010-02-03 21:21:43 +0000 | [diff] [blame] | 841 | AccessSpecifier AS, bool SuppressDeclarations){ |
Chris Lattner | 4c97d76 | 2009-04-12 21:49:30 +0000 | [diff] [blame] | 842 | DeclSpec::TST TagType; |
| 843 | if (TagTokKind == tok::kw_struct) |
| 844 | TagType = DeclSpec::TST_struct; |
| 845 | else if (TagTokKind == tok::kw_class) |
| 846 | TagType = DeclSpec::TST_class; |
| 847 | else { |
| 848 | assert(TagTokKind == tok::kw_union && "Not a class specifier"); |
| 849 | TagType = DeclSpec::TST_union; |
| 850 | } |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 851 | |
Douglas Gregor | 374929f | 2009-09-18 15:37:17 +0000 | [diff] [blame] | 852 | if (Tok.is(tok::code_completion)) { |
| 853 | // Code completion for a struct, class, or union name. |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 854 | Actions.CodeCompleteTag(getCurScope(), TagType); |
Douglas Gregor | dc84534 | 2010-05-25 05:58:43 +0000 | [diff] [blame] | 855 | ConsumeCodeCompletionToken(); |
Douglas Gregor | 374929f | 2009-09-18 15:37:17 +0000 | [diff] [blame] | 856 | } |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 857 | |
Chandler Carruth | 926c4b4 | 2010-06-28 08:39:25 +0000 | [diff] [blame] | 858 | // C++03 [temp.explicit] 14.7.2/8: |
| 859 | // The usual access checking rules do not apply to names used to specify |
| 860 | // explicit instantiations. |
| 861 | // |
| 862 | // As an extension we do not perform access checking on the names used to |
| 863 | // specify explicit specializations either. This is important to allow |
| 864 | // specializing traits classes for private types. |
| 865 | bool SuppressingAccessChecks = false; |
| 866 | if (TemplateInfo.Kind == ParsedTemplateInfo::ExplicitInstantiation || |
| 867 | TemplateInfo.Kind == ParsedTemplateInfo::ExplicitSpecialization) { |
| 868 | Actions.ActOnStartSuppressingAccessChecks(); |
| 869 | SuppressingAccessChecks = true; |
| 870 | } |
| 871 | |
John McCall | 0b7e678 | 2011-03-24 11:26:52 +0000 | [diff] [blame] | 872 | ParsedAttributes attrs(AttrFactory); |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 873 | // If attributes exist after tag, parse them. |
| 874 | if (Tok.is(tok::kw___attribute)) |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 875 | ParseGNUAttributes(attrs); |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 876 | |
Steve Naroff | f59e17e | 2008-12-24 20:59:21 +0000 | [diff] [blame] | 877 | // If declspecs exist after tag, parse them. |
John McCall | b1d397c | 2010-08-05 17:13:11 +0000 | [diff] [blame] | 878 | while (Tok.is(tok::kw___declspec)) |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 879 | ParseMicrosoftDeclSpec(attrs); |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 880 | |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 881 | // If C++0x attributes exist here, parse them. |
| 882 | // FIXME: Are we consistent with the ordering of parsing of different |
| 883 | // styles of attributes? |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 884 | MaybeParseCXX0XAttributes(attrs); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 885 | |
John Wiegley | 20c0da7 | 2011-04-27 23:09:49 +0000 | [diff] [blame] | 886 | if (TagType == DeclSpec::TST_struct && |
Douglas Gregor | b467cda | 2011-04-29 15:31:39 +0000 | [diff] [blame] | 887 | !Tok.is(tok::identifier) && |
| 888 | Tok.getIdentifierInfo() && |
| 889 | (Tok.is(tok::kw___is_arithmetic) || |
| 890 | Tok.is(tok::kw___is_convertible) || |
John Wiegley | 20c0da7 | 2011-04-27 23:09:49 +0000 | [diff] [blame] | 891 | Tok.is(tok::kw___is_empty) || |
Douglas Gregor | b467cda | 2011-04-29 15:31:39 +0000 | [diff] [blame] | 892 | Tok.is(tok::kw___is_floating_point) || |
| 893 | Tok.is(tok::kw___is_function) || |
John Wiegley | 20c0da7 | 2011-04-27 23:09:49 +0000 | [diff] [blame] | 894 | Tok.is(tok::kw___is_fundamental) || |
Douglas Gregor | b467cda | 2011-04-29 15:31:39 +0000 | [diff] [blame] | 895 | Tok.is(tok::kw___is_integral) || |
| 896 | Tok.is(tok::kw___is_member_function_pointer) || |
| 897 | Tok.is(tok::kw___is_member_pointer) || |
| 898 | Tok.is(tok::kw___is_pod) || |
| 899 | Tok.is(tok::kw___is_pointer) || |
| 900 | Tok.is(tok::kw___is_same) || |
Douglas Gregor | 877222e | 2011-04-29 01:38:03 +0000 | [diff] [blame] | 901 | Tok.is(tok::kw___is_scalar) || |
Douglas Gregor | b467cda | 2011-04-29 15:31:39 +0000 | [diff] [blame] | 902 | Tok.is(tok::kw___is_signed) || |
| 903 | Tok.is(tok::kw___is_unsigned) || |
| 904 | Tok.is(tok::kw___is_void))) { |
Douglas Gregor | 6887614 | 2011-07-30 07:01:49 +0000 | [diff] [blame] | 905 | // GNU libstdc++ 4.2 and libc++ use certain intrinsic names as the |
Douglas Gregor | b467cda | 2011-04-29 15:31:39 +0000 | [diff] [blame] | 906 | // name of struct templates, but some are keywords in GCC >= 4.3 |
| 907 | // and Clang. Therefore, when we see the token sequence "struct |
| 908 | // X", make X into a normal identifier rather than a keyword, to |
| 909 | // allow libstdc++ 4.2 and libc++ to work properly. |
Argyrios Kyrtzidis | 646395b | 2010-08-11 22:55:12 +0000 | [diff] [blame] | 910 | Tok.getIdentifierInfo()->RevertTokenIDToIdentifier(); |
Douglas Gregor | b117a60 | 2009-09-04 05:53:02 +0000 | [diff] [blame] | 911 | Tok.setKind(tok::identifier); |
| 912 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 913 | |
Argyrios Kyrtzidis | eb83ecd | 2008-11-08 16:45:02 +0000 | [diff] [blame] | 914 | // Parse the (optional) nested-name-specifier. |
John McCall | aa87d33 | 2009-12-12 11:40:51 +0000 | [diff] [blame] | 915 | CXXScopeSpec &SS = DS.getTypeSpecScope(); |
Chris Lattner | 08d92ec | 2009-12-10 00:32:41 +0000 | [diff] [blame] | 916 | if (getLang().CPlusPlus) { |
| 917 | // "FOO : BAR" is not a potential typo for "FOO::BAR". |
| 918 | ColonProtectionRAIIObject X(*this); |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 919 | |
John McCall | b3d8748 | 2010-08-24 05:47:05 +0000 | [diff] [blame] | 920 | if (ParseOptionalCXXScopeSpecifier(SS, ParsedType(), true)) |
John McCall | 207014e | 2010-07-30 06:26:29 +0000 | [diff] [blame] | 921 | DS.SetTypeSpecError(); |
John McCall | 9ba6166 | 2010-02-26 08:45:28 +0000 | [diff] [blame] | 922 | if (SS.isSet()) |
Chris Lattner | 08d92ec | 2009-12-10 00:32:41 +0000 | [diff] [blame] | 923 | if (Tok.isNot(tok::identifier) && Tok.isNot(tok::annot_template_id)) |
| 924 | Diag(Tok, diag::err_expected_ident); |
| 925 | } |
Douglas Gregor | cc63668 | 2009-02-17 23:15:12 +0000 | [diff] [blame] | 926 | |
Douglas Gregor | 2cc782f | 2009-10-30 21:46:58 +0000 | [diff] [blame] | 927 | TemplateParameterLists *TemplateParams = TemplateInfo.TemplateParams; |
| 928 | |
Douglas Gregor | cc63668 | 2009-02-17 23:15:12 +0000 | [diff] [blame] | 929 | // Parse the (optional) class name or simple-template-id. |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 930 | IdentifierInfo *Name = 0; |
| 931 | SourceLocation NameLoc; |
Douglas Gregor | 39a8de1 | 2009-02-25 19:37:18 +0000 | [diff] [blame] | 932 | TemplateIdAnnotation *TemplateId = 0; |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 933 | if (Tok.is(tok::identifier)) { |
| 934 | Name = Tok.getIdentifierInfo(); |
| 935 | NameLoc = ConsumeToken(); |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 936 | |
Douglas Gregor | 5ee3734 | 2010-05-30 22:30:21 +0000 | [diff] [blame] | 937 | if (Tok.is(tok::less) && getLang().CPlusPlus) { |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 938 | // The name was supposed to refer to a template, but didn't. |
Douglas Gregor | 2cc782f | 2009-10-30 21:46:58 +0000 | [diff] [blame] | 939 | // Eat the template argument list and try to continue parsing this as |
| 940 | // a class (or template thereof). |
| 941 | TemplateArgList TemplateArgs; |
Douglas Gregor | 2cc782f | 2009-10-30 21:46:58 +0000 | [diff] [blame] | 942 | SourceLocation LAngleLoc, RAngleLoc; |
Douglas Gregor | 059101f | 2011-03-02 00:47:37 +0000 | [diff] [blame] | 943 | if (ParseTemplateIdAfterTemplateName(TemplateTy(), NameLoc, SS, |
Douglas Gregor | 2cc782f | 2009-10-30 21:46:58 +0000 | [diff] [blame] | 944 | true, LAngleLoc, |
Douglas Gregor | 314b97f | 2009-11-10 19:49:08 +0000 | [diff] [blame] | 945 | TemplateArgs, RAngleLoc)) { |
Douglas Gregor | 2cc782f | 2009-10-30 21:46:58 +0000 | [diff] [blame] | 946 | // We couldn't parse the template argument list at all, so don't |
| 947 | // try to give any location information for the list. |
| 948 | LAngleLoc = RAngleLoc = SourceLocation(); |
| 949 | } |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 950 | |
Douglas Gregor | 2cc782f | 2009-10-30 21:46:58 +0000 | [diff] [blame] | 951 | Diag(NameLoc, diag::err_explicit_spec_non_template) |
Douglas Gregor | c78c06d | 2009-10-30 22:09:44 +0000 | [diff] [blame] | 952 | << (TemplateInfo.Kind == ParsedTemplateInfo::ExplicitInstantiation) |
Douglas Gregor | 2cc782f | 2009-10-30 21:46:58 +0000 | [diff] [blame] | 953 | << (TagType == DeclSpec::TST_class? 0 |
| 954 | : TagType == DeclSpec::TST_struct? 1 |
| 955 | : 2) |
| 956 | << Name |
| 957 | << SourceRange(LAngleLoc, RAngleLoc); |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 958 | |
| 959 | // Strip off the last template parameter list if it was empty, since |
Douglas Gregor | c78c06d | 2009-10-30 22:09:44 +0000 | [diff] [blame] | 960 | // we've removed its template argument list. |
| 961 | if (TemplateParams && TemplateInfo.LastParameterListWasEmpty) { |
| 962 | if (TemplateParams && TemplateParams->size() > 1) { |
| 963 | TemplateParams->pop_back(); |
| 964 | } else { |
| 965 | TemplateParams = 0; |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 966 | const_cast<ParsedTemplateInfo&>(TemplateInfo).Kind |
Douglas Gregor | c78c06d | 2009-10-30 22:09:44 +0000 | [diff] [blame] | 967 | = ParsedTemplateInfo::NonTemplate; |
| 968 | } |
| 969 | } else if (TemplateInfo.Kind |
| 970 | == ParsedTemplateInfo::ExplicitInstantiation) { |
| 971 | // Pretend this is just a forward declaration. |
Douglas Gregor | 2cc782f | 2009-10-30 21:46:58 +0000 | [diff] [blame] | 972 | TemplateParams = 0; |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 973 | const_cast<ParsedTemplateInfo&>(TemplateInfo).Kind |
Douglas Gregor | 2cc782f | 2009-10-30 21:46:58 +0000 | [diff] [blame] | 974 | = ParsedTemplateInfo::NonTemplate; |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 975 | const_cast<ParsedTemplateInfo&>(TemplateInfo).TemplateLoc |
Douglas Gregor | c78c06d | 2009-10-30 22:09:44 +0000 | [diff] [blame] | 976 | = SourceLocation(); |
| 977 | const_cast<ParsedTemplateInfo&>(TemplateInfo).ExternLoc |
| 978 | = SourceLocation(); |
Douglas Gregor | 2cc782f | 2009-10-30 21:46:58 +0000 | [diff] [blame] | 979 | } |
Douglas Gregor | 2cc782f | 2009-10-30 21:46:58 +0000 | [diff] [blame] | 980 | } |
Douglas Gregor | 39a8de1 | 2009-02-25 19:37:18 +0000 | [diff] [blame] | 981 | } else if (Tok.is(tok::annot_template_id)) { |
Argyrios Kyrtzidis | 25a7676 | 2011-06-22 06:09:49 +0000 | [diff] [blame] | 982 | TemplateId = takeTemplateIdAnnotation(Tok); |
Douglas Gregor | 39a8de1 | 2009-02-25 19:37:18 +0000 | [diff] [blame] | 983 | NameLoc = ConsumeToken(); |
Douglas Gregor | cc63668 | 2009-02-17 23:15:12 +0000 | [diff] [blame] | 984 | |
Douglas Gregor | 059101f | 2011-03-02 00:47:37 +0000 | [diff] [blame] | 985 | if (TemplateId->Kind != TNK_Type_template && |
| 986 | TemplateId->Kind != TNK_Dependent_template_name) { |
Douglas Gregor | 39a8de1 | 2009-02-25 19:37:18 +0000 | [diff] [blame] | 987 | // The template-name in the simple-template-id refers to |
| 988 | // something other than a class template. Give an appropriate |
| 989 | // error message and skip to the ';'. |
| 990 | SourceRange Range(NameLoc); |
| 991 | if (SS.isNotEmpty()) |
| 992 | Range.setBegin(SS.getBeginLoc()); |
Douglas Gregor | cc63668 | 2009-02-17 23:15:12 +0000 | [diff] [blame] | 993 | |
Douglas Gregor | 39a8de1 | 2009-02-25 19:37:18 +0000 | [diff] [blame] | 994 | Diag(TemplateId->LAngleLoc, diag::err_template_spec_syntax_non_template) |
| 995 | << Name << static_cast<int>(TemplateId->Kind) << Range; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 996 | |
Douglas Gregor | 39a8de1 | 2009-02-25 19:37:18 +0000 | [diff] [blame] | 997 | DS.SetTypeSpecError(); |
| 998 | SkipUntil(tok::semi, false, true); |
Chandler Carruth | 926c4b4 | 2010-06-28 08:39:25 +0000 | [diff] [blame] | 999 | if (SuppressingAccessChecks) |
| 1000 | Actions.ActOnStopSuppressingAccessChecks(); |
| 1001 | |
Douglas Gregor | 39a8de1 | 2009-02-25 19:37:18 +0000 | [diff] [blame] | 1002 | return; |
Douglas Gregor | cc63668 | 2009-02-17 23:15:12 +0000 | [diff] [blame] | 1003 | } |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 1004 | } |
| 1005 | |
Chandler Carruth | 926c4b4 | 2010-06-28 08:39:25 +0000 | [diff] [blame] | 1006 | // As soon as we're finished parsing the class's template-id, turn access |
| 1007 | // checking back on. |
| 1008 | if (SuppressingAccessChecks) |
| 1009 | Actions.ActOnStopSuppressingAccessChecks(); |
| 1010 | |
John McCall | 67d1a67 | 2009-08-06 02:15:43 +0000 | [diff] [blame] | 1011 | // There are four options here. If we have 'struct foo;', then this |
| 1012 | // is either a forward declaration or a friend declaration, which |
Anders Carlsson | cc54d59 | 2011-01-22 16:56:46 +0000 | [diff] [blame] | 1013 | // have to be treated differently. If we have 'struct foo {...', |
Anders Carlsson | 1d20927 | 2011-03-25 14:55:14 +0000 | [diff] [blame] | 1014 | // 'struct foo :...' or 'struct foo final[opt]' then this is a |
Anders Carlsson | cc54d59 | 2011-01-22 16:56:46 +0000 | [diff] [blame] | 1015 | // definition. Otherwise we have something like 'struct foo xyz', a reference. |
Sebastian Redl | d9bafa7 | 2010-02-03 21:21:43 +0000 | [diff] [blame] | 1016 | // However, in some contexts, things look like declarations but are just |
| 1017 | // references, e.g. |
| 1018 | // new struct s; |
| 1019 | // or |
| 1020 | // &T::operator struct s; |
| 1021 | // For these, SuppressDeclarations is true. |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 1022 | Sema::TagUseKind TUK; |
Sebastian Redl | d9bafa7 | 2010-02-03 21:21:43 +0000 | [diff] [blame] | 1023 | if (SuppressDeclarations) |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 1024 | TUK = Sema::TUK_Reference; |
Anders Carlsson | cc54d59 | 2011-01-22 16:56:46 +0000 | [diff] [blame] | 1025 | else if (Tok.is(tok::l_brace) || |
| 1026 | (getLang().CPlusPlus && Tok.is(tok::colon)) || |
Anders Carlsson | 8a29ba0 | 2011-03-25 14:53:29 +0000 | [diff] [blame] | 1027 | isCXX0XFinalKeyword()) { |
Douglas Gregor | d85bea2 | 2009-09-26 06:47:28 +0000 | [diff] [blame] | 1028 | if (DS.isFriendSpecified()) { |
| 1029 | // C++ [class.friend]p2: |
| 1030 | // A class shall not be defined in a friend declaration. |
| 1031 | Diag(Tok.getLocation(), diag::err_friend_decl_defines_class) |
| 1032 | << SourceRange(DS.getFriendSpecLoc()); |
| 1033 | |
| 1034 | // Skip everything up to the semicolon, so that this looks like a proper |
| 1035 | // friend class (or template thereof) declaration. |
| 1036 | SkipUntil(tok::semi, true, true); |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 1037 | TUK = Sema::TUK_Friend; |
Douglas Gregor | d85bea2 | 2009-09-26 06:47:28 +0000 | [diff] [blame] | 1038 | } else { |
| 1039 | // Okay, this is a class definition. |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 1040 | TUK = Sema::TUK_Definition; |
Douglas Gregor | d85bea2 | 2009-09-26 06:47:28 +0000 | [diff] [blame] | 1041 | } |
| 1042 | } else if (Tok.is(tok::semi)) |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 1043 | TUK = DS.isFriendSpecified() ? Sema::TUK_Friend : Sema::TUK_Declaration; |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 1044 | else |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 1045 | TUK = Sema::TUK_Reference; |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 1046 | |
John McCall | 207014e | 2010-07-30 06:26:29 +0000 | [diff] [blame] | 1047 | if (!Name && !TemplateId && (DS.getTypeSpecType() == DeclSpec::TST_error || |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 1048 | TUK != Sema::TUK_Definition)) { |
John McCall | 207014e | 2010-07-30 06:26:29 +0000 | [diff] [blame] | 1049 | if (DS.getTypeSpecType() != DeclSpec::TST_error) { |
| 1050 | // We have a declaration or reference to an anonymous class. |
| 1051 | Diag(StartLoc, diag::err_anon_type_definition) |
| 1052 | << DeclSpec::getSpecifierName(TagType); |
| 1053 | } |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 1054 | |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 1055 | SkipUntil(tok::comma, true); |
| 1056 | return; |
| 1057 | } |
| 1058 | |
Douglas Gregor | ddc29e1 | 2009-02-06 22:42:48 +0000 | [diff] [blame] | 1059 | // Create the tag portion of the class or class template. |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 1060 | DeclResult TagOrTempResult = true; // invalid |
| 1061 | TypeResult TypeResult = true; // invalid |
Douglas Gregor | 4d9a16f | 2009-05-12 23:25:50 +0000 | [diff] [blame] | 1062 | |
Douglas Gregor | 402abb5 | 2009-05-28 23:31:59 +0000 | [diff] [blame] | 1063 | bool Owned = false; |
John McCall | f1bbbb4 | 2009-09-04 01:14:41 +0000 | [diff] [blame] | 1064 | if (TemplateId) { |
Douglas Gregor | 4d9a16f | 2009-05-12 23:25:50 +0000 | [diff] [blame] | 1065 | // Explicit specialization, class template partial specialization, |
| 1066 | // or explicit instantiation. |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1067 | ASTTemplateArgsPtr TemplateArgsPtr(Actions, |
Douglas Gregor | 39a8de1 | 2009-02-25 19:37:18 +0000 | [diff] [blame] | 1068 | TemplateId->getTemplateArgs(), |
Douglas Gregor | 39a8de1 | 2009-02-25 19:37:18 +0000 | [diff] [blame] | 1069 | TemplateId->NumArgs); |
Douglas Gregor | 4d9a16f | 2009-05-12 23:25:50 +0000 | [diff] [blame] | 1070 | if (TemplateInfo.Kind == ParsedTemplateInfo::ExplicitInstantiation && |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 1071 | TUK == Sema::TUK_Declaration) { |
Douglas Gregor | 4d9a16f | 2009-05-12 23:25:50 +0000 | [diff] [blame] | 1072 | // This is an explicit instantiation of a class template. |
| 1073 | TagOrTempResult |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 1074 | = Actions.ActOnExplicitInstantiation(getCurScope(), |
Douglas Gregor | 45f9655 | 2009-09-04 06:33:52 +0000 | [diff] [blame] | 1075 | TemplateInfo.ExternLoc, |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1076 | TemplateInfo.TemplateLoc, |
Douglas Gregor | 4d9a16f | 2009-05-12 23:25:50 +0000 | [diff] [blame] | 1077 | TagType, |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1078 | StartLoc, |
Douglas Gregor | 4d9a16f | 2009-05-12 23:25:50 +0000 | [diff] [blame] | 1079 | SS, |
John McCall | 2b5289b | 2010-08-23 07:28:44 +0000 | [diff] [blame] | 1080 | TemplateId->Template, |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1081 | TemplateId->TemplateNameLoc, |
| 1082 | TemplateId->LAngleLoc, |
Douglas Gregor | 4d9a16f | 2009-05-12 23:25:50 +0000 | [diff] [blame] | 1083 | TemplateArgsPtr, |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1084 | TemplateId->RAngleLoc, |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 1085 | attrs.getList()); |
John McCall | 74256f5 | 2010-04-14 00:24:33 +0000 | [diff] [blame] | 1086 | |
| 1087 | // Friend template-ids are treated as references unless |
| 1088 | // they have template headers, in which case they're ill-formed |
| 1089 | // (FIXME: "template <class T> friend class A<T>::B<int>;"). |
| 1090 | // We diagnose this error in ActOnClassTemplateSpecialization. |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 1091 | } else if (TUK == Sema::TUK_Reference || |
| 1092 | (TUK == Sema::TUK_Friend && |
John McCall | 74256f5 | 2010-04-14 00:24:33 +0000 | [diff] [blame] | 1093 | TemplateInfo.Kind == ParsedTemplateInfo::NonTemplate)) { |
Douglas Gregor | 059101f | 2011-03-02 00:47:37 +0000 | [diff] [blame] | 1094 | TypeResult = Actions.ActOnTagTemplateIdType(TUK, TagType, |
| 1095 | StartLoc, |
| 1096 | TemplateId->SS, |
| 1097 | TemplateId->Template, |
| 1098 | TemplateId->TemplateNameLoc, |
| 1099 | TemplateId->LAngleLoc, |
| 1100 | TemplateArgsPtr, |
| 1101 | TemplateId->RAngleLoc); |
Douglas Gregor | 4d9a16f | 2009-05-12 23:25:50 +0000 | [diff] [blame] | 1102 | } else { |
| 1103 | // This is an explicit specialization or a class template |
| 1104 | // partial specialization. |
| 1105 | TemplateParameterLists FakedParamLists; |
| 1106 | |
| 1107 | if (TemplateInfo.Kind == ParsedTemplateInfo::ExplicitInstantiation) { |
| 1108 | // This looks like an explicit instantiation, because we have |
| 1109 | // something like |
| 1110 | // |
| 1111 | // template class Foo<X> |
| 1112 | // |
Douglas Gregor | 3f5b61c | 2009-05-14 00:28:11 +0000 | [diff] [blame] | 1113 | // but it actually has a definition. Most likely, this was |
Douglas Gregor | 4d9a16f | 2009-05-12 23:25:50 +0000 | [diff] [blame] | 1114 | // meant to be an explicit specialization, but the user forgot |
| 1115 | // the '<>' after 'template'. |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 1116 | assert(TUK == Sema::TUK_Definition && "Expected a definition here"); |
Douglas Gregor | 4d9a16f | 2009-05-12 23:25:50 +0000 | [diff] [blame] | 1117 | |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1118 | SourceLocation LAngleLoc |
Douglas Gregor | 4d9a16f | 2009-05-12 23:25:50 +0000 | [diff] [blame] | 1119 | = PP.getLocForEndOfToken(TemplateInfo.TemplateLoc); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1120 | Diag(TemplateId->TemplateNameLoc, |
Douglas Gregor | 4d9a16f | 2009-05-12 23:25:50 +0000 | [diff] [blame] | 1121 | diag::err_explicit_instantiation_with_definition) |
| 1122 | << SourceRange(TemplateInfo.TemplateLoc) |
Douglas Gregor | 849b243 | 2010-03-31 17:46:05 +0000 | [diff] [blame] | 1123 | << FixItHint::CreateInsertion(LAngleLoc, "<>"); |
Douglas Gregor | 4d9a16f | 2009-05-12 23:25:50 +0000 | [diff] [blame] | 1124 | |
| 1125 | // Create a fake template parameter list that contains only |
| 1126 | // "template<>", so that we treat this construct as a class |
| 1127 | // template specialization. |
| 1128 | FakedParamLists.push_back( |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1129 | Actions.ActOnTemplateParameterList(0, SourceLocation(), |
Douglas Gregor | 4d9a16f | 2009-05-12 23:25:50 +0000 | [diff] [blame] | 1130 | TemplateInfo.TemplateLoc, |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1131 | LAngleLoc, |
| 1132 | 0, 0, |
Douglas Gregor | 4d9a16f | 2009-05-12 23:25:50 +0000 | [diff] [blame] | 1133 | LAngleLoc)); |
| 1134 | TemplateParams = &FakedParamLists; |
| 1135 | } |
| 1136 | |
| 1137 | // Build the class template specialization. |
| 1138 | TagOrTempResult |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 1139 | = Actions.ActOnClassTemplateSpecialization(getCurScope(), TagType, TUK, |
Douglas Gregor | 39a8de1 | 2009-02-25 19:37:18 +0000 | [diff] [blame] | 1140 | StartLoc, SS, |
John McCall | 2b5289b | 2010-08-23 07:28:44 +0000 | [diff] [blame] | 1141 | TemplateId->Template, |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1142 | TemplateId->TemplateNameLoc, |
| 1143 | TemplateId->LAngleLoc, |
Douglas Gregor | 39a8de1 | 2009-02-25 19:37:18 +0000 | [diff] [blame] | 1144 | TemplateArgsPtr, |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1145 | TemplateId->RAngleLoc, |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 1146 | attrs.getList(), |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 1147 | MultiTemplateParamsArg(Actions, |
Douglas Gregor | cc63668 | 2009-02-17 23:15:12 +0000 | [diff] [blame] | 1148 | TemplateParams? &(*TemplateParams)[0] : 0, |
| 1149 | TemplateParams? TemplateParams->size() : 0)); |
Douglas Gregor | 4d9a16f | 2009-05-12 23:25:50 +0000 | [diff] [blame] | 1150 | } |
Douglas Gregor | 3f5b61c | 2009-05-14 00:28:11 +0000 | [diff] [blame] | 1151 | } else if (TemplateInfo.Kind == ParsedTemplateInfo::ExplicitInstantiation && |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 1152 | TUK == Sema::TUK_Declaration) { |
Douglas Gregor | 3f5b61c | 2009-05-14 00:28:11 +0000 | [diff] [blame] | 1153 | // Explicit instantiation of a member of a class template |
| 1154 | // specialization, e.g., |
| 1155 | // |
| 1156 | // template struct Outer<int>::Inner; |
| 1157 | // |
| 1158 | TagOrTempResult |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 1159 | = Actions.ActOnExplicitInstantiation(getCurScope(), |
Douglas Gregor | 45f9655 | 2009-09-04 06:33:52 +0000 | [diff] [blame] | 1160 | TemplateInfo.ExternLoc, |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1161 | TemplateInfo.TemplateLoc, |
| 1162 | TagType, StartLoc, SS, Name, |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 1163 | NameLoc, attrs.getList()); |
John McCall | 9a34edb | 2010-10-19 01:40:49 +0000 | [diff] [blame] | 1164 | } else if (TUK == Sema::TUK_Friend && |
| 1165 | TemplateInfo.Kind != ParsedTemplateInfo::NonTemplate) { |
| 1166 | TagOrTempResult = |
| 1167 | Actions.ActOnTemplatedFriendTag(getCurScope(), DS.getFriendSpecLoc(), |
| 1168 | TagType, StartLoc, SS, |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 1169 | Name, NameLoc, attrs.getList(), |
John McCall | 9a34edb | 2010-10-19 01:40:49 +0000 | [diff] [blame] | 1170 | MultiTemplateParamsArg(Actions, |
| 1171 | TemplateParams? &(*TemplateParams)[0] : 0, |
| 1172 | TemplateParams? TemplateParams->size() : 0)); |
Douglas Gregor | 3f5b61c | 2009-05-14 00:28:11 +0000 | [diff] [blame] | 1173 | } else { |
| 1174 | if (TemplateInfo.Kind == ParsedTemplateInfo::ExplicitInstantiation && |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 1175 | TUK == Sema::TUK_Definition) { |
Douglas Gregor | 3f5b61c | 2009-05-14 00:28:11 +0000 | [diff] [blame] | 1176 | // FIXME: Diagnose this particular error. |
| 1177 | } |
| 1178 | |
John McCall | c4e7019 | 2009-09-11 04:59:25 +0000 | [diff] [blame] | 1179 | bool IsDependent = false; |
| 1180 | |
John McCall | a25c408 | 2010-10-19 18:40:57 +0000 | [diff] [blame] | 1181 | // Don't pass down template parameter lists if this is just a tag |
| 1182 | // reference. For example, we don't need the template parameters here: |
| 1183 | // template <class T> class A *makeA(T t); |
| 1184 | MultiTemplateParamsArg TParams; |
| 1185 | if (TUK != Sema::TUK_Reference && TemplateParams) |
| 1186 | TParams = |
| 1187 | MultiTemplateParamsArg(&(*TemplateParams)[0], TemplateParams->size()); |
| 1188 | |
Douglas Gregor | 3f5b61c | 2009-05-14 00:28:11 +0000 | [diff] [blame] | 1189 | // Declaration or definition of a class type |
John McCall | 9a34edb | 2010-10-19 01:40:49 +0000 | [diff] [blame] | 1190 | TagOrTempResult = Actions.ActOnTag(getCurScope(), TagType, TUK, StartLoc, |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 1191 | SS, Name, NameLoc, attrs.getList(), AS, |
John McCall | a25c408 | 2010-10-19 18:40:57 +0000 | [diff] [blame] | 1192 | TParams, Owned, IsDependent, false, |
Abramo Bagnara | a88cefd | 2010-12-03 18:54:17 +0000 | [diff] [blame] | 1193 | false, clang::TypeResult()); |
John McCall | c4e7019 | 2009-09-11 04:59:25 +0000 | [diff] [blame] | 1194 | |
| 1195 | // If ActOnTag said the type was dependent, try again with the |
| 1196 | // less common call. |
John McCall | 9a34edb | 2010-10-19 01:40:49 +0000 | [diff] [blame] | 1197 | if (IsDependent) { |
| 1198 | assert(TUK == Sema::TUK_Reference || TUK == Sema::TUK_Friend); |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 1199 | TypeResult = Actions.ActOnDependentTag(getCurScope(), TagType, TUK, |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 1200 | SS, Name, StartLoc, NameLoc); |
John McCall | 9a34edb | 2010-10-19 01:40:49 +0000 | [diff] [blame] | 1201 | } |
Douglas Gregor | 3f5b61c | 2009-05-14 00:28:11 +0000 | [diff] [blame] | 1202 | } |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 1203 | |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 1204 | // If there is a body, parse it and inform the actions module. |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 1205 | if (TUK == Sema::TUK_Definition) { |
John McCall | bd0dfa5 | 2009-12-19 21:48:58 +0000 | [diff] [blame] | 1206 | assert(Tok.is(tok::l_brace) || |
Anders Carlsson | cc54d59 | 2011-01-22 16:56:46 +0000 | [diff] [blame] | 1207 | (getLang().CPlusPlus && Tok.is(tok::colon)) || |
Anders Carlsson | 8a29ba0 | 2011-03-25 14:53:29 +0000 | [diff] [blame] | 1208 | isCXX0XFinalKeyword()); |
Argyrios Kyrtzidis | 0795232 | 2008-07-01 10:37:29 +0000 | [diff] [blame] | 1209 | if (getLang().CPlusPlus) |
Douglas Gregor | 212e81c | 2009-03-25 00:13:59 +0000 | [diff] [blame] | 1210 | ParseCXXMemberSpecification(StartLoc, TagType, TagOrTempResult.get()); |
Argyrios Kyrtzidis | 0795232 | 2008-07-01 10:37:29 +0000 | [diff] [blame] | 1211 | else |
Douglas Gregor | 212e81c | 2009-03-25 00:13:59 +0000 | [diff] [blame] | 1212 | ParseStructUnionBody(StartLoc, TagType, TagOrTempResult.get()); |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 1213 | } |
| 1214 | |
John McCall | b3d8748 | 2010-08-24 05:47:05 +0000 | [diff] [blame] | 1215 | const char *PrevSpec = 0; |
| 1216 | unsigned DiagID; |
| 1217 | bool Result; |
John McCall | c4e7019 | 2009-09-11 04:59:25 +0000 | [diff] [blame] | 1218 | if (!TypeResult.isInvalid()) { |
Abramo Bagnara | 0daaf32 | 2011-03-16 20:16:18 +0000 | [diff] [blame] | 1219 | Result = DS.SetTypeSpecType(DeclSpec::TST_typename, StartLoc, |
| 1220 | NameLoc.isValid() ? NameLoc : StartLoc, |
John McCall | b3d8748 | 2010-08-24 05:47:05 +0000 | [diff] [blame] | 1221 | PrevSpec, DiagID, TypeResult.get()); |
John McCall | c4e7019 | 2009-09-11 04:59:25 +0000 | [diff] [blame] | 1222 | } else if (!TagOrTempResult.isInvalid()) { |
Abramo Bagnara | 0daaf32 | 2011-03-16 20:16:18 +0000 | [diff] [blame] | 1223 | Result = DS.SetTypeSpecType(TagType, StartLoc, |
| 1224 | NameLoc.isValid() ? NameLoc : StartLoc, |
| 1225 | PrevSpec, DiagID, TagOrTempResult.get(), Owned); |
John McCall | c4e7019 | 2009-09-11 04:59:25 +0000 | [diff] [blame] | 1226 | } else { |
Douglas Gregor | ddc29e1 | 2009-02-06 22:42:48 +0000 | [diff] [blame] | 1227 | DS.SetTypeSpecError(); |
Anders Carlsson | 66e9977 | 2009-05-11 22:27:47 +0000 | [diff] [blame] | 1228 | return; |
| 1229 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1230 | |
John McCall | b3d8748 | 2010-08-24 05:47:05 +0000 | [diff] [blame] | 1231 | if (Result) |
John McCall | fec5401 | 2009-08-03 20:12:06 +0000 | [diff] [blame] | 1232 | Diag(StartLoc, DiagID) << PrevSpec; |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 1233 | |
Chris Lattner | 4ed5d91 | 2010-02-02 01:23:29 +0000 | [diff] [blame] | 1234 | // At this point, we've successfully parsed a class-specifier in 'definition' |
| 1235 | // form (e.g. "struct foo { int x; }". While we could just return here, we're |
| 1236 | // going to look at what comes after it to improve error recovery. If an |
| 1237 | // impossible token occurs next, we assume that the programmer forgot a ; at |
| 1238 | // the end of the declaration and recover that way. |
| 1239 | // |
| 1240 | // This switch enumerates the valid "follow" set for definition. |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 1241 | if (TUK == Sema::TUK_Definition) { |
Chris Lattner | b3a4e43 | 2010-02-28 18:18:36 +0000 | [diff] [blame] | 1242 | bool ExpectedSemi = true; |
Chris Lattner | 4ed5d91 | 2010-02-02 01:23:29 +0000 | [diff] [blame] | 1243 | switch (Tok.getKind()) { |
Chris Lattner | b3a4e43 | 2010-02-28 18:18:36 +0000 | [diff] [blame] | 1244 | default: break; |
Chris Lattner | 4ed5d91 | 2010-02-02 01:23:29 +0000 | [diff] [blame] | 1245 | case tok::semi: // struct foo {...} ; |
Chris Lattner | 99c9520 | 2010-02-02 17:32:27 +0000 | [diff] [blame] | 1246 | case tok::star: // struct foo {...} * P; |
| 1247 | case tok::amp: // struct foo {...} & R = ... |
| 1248 | case tok::identifier: // struct foo {...} V ; |
| 1249 | case tok::r_paren: //(struct foo {...} ) {4} |
| 1250 | case tok::annot_cxxscope: // struct foo {...} a:: b; |
| 1251 | case tok::annot_typename: // struct foo {...} a ::b; |
| 1252 | case tok::annot_template_id: // struct foo {...} a<int> ::b; |
Chris Lattner | c2e1c1a | 2010-02-03 20:41:24 +0000 | [diff] [blame] | 1253 | case tok::l_paren: // struct foo {...} ( x); |
Chris Lattner | 16acfee | 2010-02-03 01:45:03 +0000 | [diff] [blame] | 1254 | case tok::comma: // __builtin_offsetof(struct foo{...} , |
Chris Lattner | b3a4e43 | 2010-02-28 18:18:36 +0000 | [diff] [blame] | 1255 | ExpectedSemi = false; |
| 1256 | break; |
| 1257 | // Type qualifiers |
| 1258 | case tok::kw_const: // struct foo {...} const x; |
| 1259 | case tok::kw_volatile: // struct foo {...} volatile x; |
| 1260 | case tok::kw_restrict: // struct foo {...} restrict x; |
| 1261 | case tok::kw_inline: // struct foo {...} inline foo() {}; |
Chris Lattner | 99c9520 | 2010-02-02 17:32:27 +0000 | [diff] [blame] | 1262 | // Storage-class specifiers |
| 1263 | case tok::kw_static: // struct foo {...} static x; |
| 1264 | case tok::kw_extern: // struct foo {...} extern x; |
| 1265 | case tok::kw_typedef: // struct foo {...} typedef x; |
| 1266 | case tok::kw_register: // struct foo {...} register x; |
| 1267 | case tok::kw_auto: // struct foo {...} auto x; |
Richard Smith | af1fc7a | 2011-08-15 21:04:07 +0000 | [diff] [blame] | 1268 | case tok::kw_mutable: // struct foo {...} mutable x; |
| 1269 | case tok::kw_constexpr: // struct foo {...} constexpr x; |
Chris Lattner | b3a4e43 | 2010-02-28 18:18:36 +0000 | [diff] [blame] | 1270 | // As shown above, type qualifiers and storage class specifiers absolutely |
| 1271 | // can occur after class specifiers according to the grammar. However, |
Chris Lattner | fc8f0e1 | 2011-04-15 05:22:18 +0000 | [diff] [blame] | 1272 | // 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] | 1273 | // it is much more likely that someone missed a semi colon and the |
| 1274 | // type/storage class specifier we're seeing is part of the *next* |
| 1275 | // intended declaration, as in: |
| 1276 | // |
| 1277 | // struct foo { ... } |
| 1278 | // typedef int X; |
| 1279 | // |
| 1280 | // We'd really like to emit a missing semicolon error instead of emitting |
| 1281 | // an error on the 'int' saying that you can't have two type specifiers in |
| 1282 | // the same declaration of X. Because of this, we look ahead past this |
| 1283 | // token to see if it's a type specifier. If so, we know the code is |
| 1284 | // otherwise invalid, so we can produce the expected semi error. |
| 1285 | if (!isKnownToBeTypeSpecifier(NextToken())) |
| 1286 | ExpectedSemi = false; |
Chris Lattner | 4ed5d91 | 2010-02-02 01:23:29 +0000 | [diff] [blame] | 1287 | break; |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 1288 | |
| 1289 | case tok::r_brace: // struct bar { struct foo {...} } |
Chris Lattner | 4ed5d91 | 2010-02-02 01:23:29 +0000 | [diff] [blame] | 1290 | // 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] | 1291 | if (!getLang().CPlusPlus) |
| 1292 | ExpectedSemi = false; |
| 1293 | break; |
| 1294 | } |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 1295 | |
Richard Smith | cf6b0a2 | 2011-07-14 21:35:26 +0000 | [diff] [blame] | 1296 | // C++ [temp]p3 In a template-declaration which defines a class, no |
| 1297 | // declarator is permitted. |
| 1298 | if (TemplateInfo.Kind) |
| 1299 | ExpectedSemi = true; |
| 1300 | |
Chris Lattner | b3a4e43 | 2010-02-28 18:18:36 +0000 | [diff] [blame] | 1301 | if (ExpectedSemi) { |
Chris Lattner | 4ed5d91 | 2010-02-02 01:23:29 +0000 | [diff] [blame] | 1302 | ExpectAndConsume(tok::semi, diag::err_expected_semi_after_tagdecl, |
| 1303 | TagType == DeclSpec::TST_class ? "class" |
| 1304 | : TagType == DeclSpec::TST_struct? "struct" : "union"); |
| 1305 | // Push this token back into the preprocessor and change our current token |
| 1306 | // to ';' so that the rest of the code recovers as though there were an |
| 1307 | // ';' after the definition. |
| 1308 | PP.EnterToken(Tok); |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 1309 | Tok.setKind(tok::semi); |
Chris Lattner | 4ed5d91 | 2010-02-02 01:23:29 +0000 | [diff] [blame] | 1310 | } |
| 1311 | } |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 1312 | } |
| 1313 | |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1314 | /// ParseBaseClause - Parse the base-clause of a C++ class [C++ class.derived]. |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 1315 | /// |
| 1316 | /// base-clause : [C++ class.derived] |
| 1317 | /// ':' base-specifier-list |
| 1318 | /// base-specifier-list: |
| 1319 | /// base-specifier '...'[opt] |
| 1320 | /// base-specifier-list ',' base-specifier '...'[opt] |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 1321 | void Parser::ParseBaseClause(Decl *ClassDecl) { |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 1322 | assert(Tok.is(tok::colon) && "Not a base clause"); |
| 1323 | ConsumeToken(); |
| 1324 | |
Douglas Gregor | f8268ae | 2008-10-22 17:49:05 +0000 | [diff] [blame] | 1325 | // Build up an array of parsed base specifiers. |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 1326 | SmallVector<CXXBaseSpecifier *, 8> BaseInfo; |
Douglas Gregor | f8268ae | 2008-10-22 17:49:05 +0000 | [diff] [blame] | 1327 | |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 1328 | while (true) { |
| 1329 | // Parse a base-specifier. |
Douglas Gregor | f8268ae | 2008-10-22 17:49:05 +0000 | [diff] [blame] | 1330 | BaseResult Result = ParseBaseSpecifier(ClassDecl); |
Douglas Gregor | 5ac8aff | 2009-01-26 22:44:13 +0000 | [diff] [blame] | 1331 | if (Result.isInvalid()) { |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 1332 | // Skip the rest of this base specifier, up until the comma or |
| 1333 | // opening brace. |
Douglas Gregor | f8268ae | 2008-10-22 17:49:05 +0000 | [diff] [blame] | 1334 | SkipUntil(tok::comma, tok::l_brace, true, true); |
| 1335 | } else { |
| 1336 | // Add this to our array of base specifiers. |
Douglas Gregor | 5ac8aff | 2009-01-26 22:44:13 +0000 | [diff] [blame] | 1337 | BaseInfo.push_back(Result.get()); |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 1338 | } |
| 1339 | |
| 1340 | // If the next token is a comma, consume it and keep reading |
| 1341 | // base-specifiers. |
| 1342 | if (Tok.isNot(tok::comma)) break; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1343 | |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 1344 | // Consume the comma. |
| 1345 | ConsumeToken(); |
| 1346 | } |
Douglas Gregor | f8268ae | 2008-10-22 17:49:05 +0000 | [diff] [blame] | 1347 | |
| 1348 | // Attach the base specifiers |
Jay Foad | beaaccd | 2009-05-21 09:52:38 +0000 | [diff] [blame] | 1349 | Actions.ActOnBaseSpecifiers(ClassDecl, BaseInfo.data(), BaseInfo.size()); |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 1350 | } |
| 1351 | |
| 1352 | /// ParseBaseSpecifier - Parse a C++ base-specifier. A base-specifier is |
| 1353 | /// one entry in the base class list of a class specifier, for example: |
| 1354 | /// class foo : public bar, virtual private baz { |
| 1355 | /// 'public bar' and 'virtual private baz' are each base-specifiers. |
| 1356 | /// |
| 1357 | /// base-specifier: [C++ class.derived] |
| 1358 | /// ::[opt] nested-name-specifier[opt] class-name |
| 1359 | /// 'virtual' access-specifier[opt] ::[opt] nested-name-specifier[opt] |
| 1360 | /// class-name |
| 1361 | /// access-specifier 'virtual'[opt] ::[opt] nested-name-specifier[opt] |
| 1362 | /// class-name |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 1363 | Parser::BaseResult Parser::ParseBaseSpecifier(Decl *ClassDecl) { |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 1364 | bool IsVirtual = false; |
| 1365 | SourceLocation StartLoc = Tok.getLocation(); |
| 1366 | |
| 1367 | // Parse the 'virtual' keyword. |
| 1368 | if (Tok.is(tok::kw_virtual)) { |
| 1369 | ConsumeToken(); |
| 1370 | IsVirtual = true; |
| 1371 | } |
| 1372 | |
| 1373 | // Parse an (optional) access specifier. |
| 1374 | AccessSpecifier Access = getAccessSpecifierIfPresent(); |
John McCall | 92f8831 | 2010-01-23 00:46:32 +0000 | [diff] [blame] | 1375 | if (Access != AS_none) |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 1376 | ConsumeToken(); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1377 | |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 1378 | // Parse the 'virtual' keyword (again!), in case it came after the |
| 1379 | // access specifier. |
| 1380 | if (Tok.is(tok::kw_virtual)) { |
| 1381 | SourceLocation VirtualLoc = ConsumeToken(); |
| 1382 | if (IsVirtual) { |
| 1383 | // Complain about duplicate 'virtual' |
Chris Lattner | 1ab3b96 | 2008-11-18 07:48:38 +0000 | [diff] [blame] | 1384 | Diag(VirtualLoc, diag::err_dup_virtual) |
Douglas Gregor | 849b243 | 2010-03-31 17:46:05 +0000 | [diff] [blame] | 1385 | << FixItHint::CreateRemoval(VirtualLoc); |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 1386 | } |
| 1387 | |
| 1388 | IsVirtual = true; |
| 1389 | } |
| 1390 | |
Argyrios Kyrtzidis | eb83ecd | 2008-11-08 16:45:02 +0000 | [diff] [blame] | 1391 | // Parse optional '::' and optional nested-name-specifier. |
| 1392 | CXXScopeSpec SS; |
John McCall | b3d8748 | 2010-08-24 05:47:05 +0000 | [diff] [blame] | 1393 | ParseOptionalCXXScopeSpecifier(SS, ParsedType(), /*EnteringContext=*/false); |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 1394 | |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 1395 | // The location of the base class itself. |
| 1396 | SourceLocation BaseLoc = Tok.getLocation(); |
Douglas Gregor | 42a552f | 2008-11-05 20:51:48 +0000 | [diff] [blame] | 1397 | |
| 1398 | // Parse the class-name. |
Douglas Gregor | 7f43d67 | 2009-02-25 23:52:28 +0000 | [diff] [blame] | 1399 | SourceLocation EndLocation; |
Douglas Gregor | 059101f | 2011-03-02 00:47:37 +0000 | [diff] [blame] | 1400 | TypeResult BaseType = ParseClassName(EndLocation, SS); |
Douglas Gregor | 31a19b6 | 2009-04-01 21:51:26 +0000 | [diff] [blame] | 1401 | if (BaseType.isInvalid()) |
Douglas Gregor | 42a552f | 2008-11-05 20:51:48 +0000 | [diff] [blame] | 1402 | return true; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1403 | |
Douglas Gregor | f90b27a | 2011-01-03 22:36:02 +0000 | [diff] [blame] | 1404 | // Parse the optional ellipsis (for a pack expansion). The ellipsis is |
| 1405 | // actually part of the base-specifier-list grammar productions, but we |
| 1406 | // parse it here for convenience. |
| 1407 | SourceLocation EllipsisLoc; |
| 1408 | if (Tok.is(tok::ellipsis)) |
| 1409 | EllipsisLoc = ConsumeToken(); |
| 1410 | |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1411 | // Find the complete source range for the base-specifier. |
Douglas Gregor | 7f43d67 | 2009-02-25 23:52:28 +0000 | [diff] [blame] | 1412 | SourceRange Range(StartLoc, EndLocation); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1413 | |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 1414 | // Notify semantic analysis that we have parsed a complete |
| 1415 | // base-specifier. |
Sebastian Redl | a55e52c | 2008-11-25 22:21:31 +0000 | [diff] [blame] | 1416 | return Actions.ActOnBaseSpecifier(ClassDecl, Range, IsVirtual, Access, |
Douglas Gregor | f90b27a | 2011-01-03 22:36:02 +0000 | [diff] [blame] | 1417 | BaseType.get(), BaseLoc, EllipsisLoc); |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 1418 | } |
| 1419 | |
| 1420 | /// getAccessSpecifierIfPresent - Determine whether the next token is |
| 1421 | /// a C++ access-specifier. |
| 1422 | /// |
| 1423 | /// access-specifier: [C++ class.derived] |
| 1424 | /// 'private' |
| 1425 | /// 'protected' |
| 1426 | /// 'public' |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1427 | AccessSpecifier Parser::getAccessSpecifierIfPresent() const { |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 1428 | switch (Tok.getKind()) { |
| 1429 | default: return AS_none; |
| 1430 | case tok::kw_private: return AS_private; |
| 1431 | case tok::kw_protected: return AS_protected; |
| 1432 | case tok::kw_public: return AS_public; |
| 1433 | } |
| 1434 | } |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1435 | |
Eli Friedman | d33133c | 2009-07-22 21:45:50 +0000 | [diff] [blame] | 1436 | void Parser::HandleMemberFunctionDefaultArgs(Declarator& DeclaratorInfo, |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 1437 | Decl *ThisDecl) { |
Eli Friedman | d33133c | 2009-07-22 21:45:50 +0000 | [diff] [blame] | 1438 | // We just declared a member function. If this member function |
| 1439 | // has any default arguments, we'll need to parse them later. |
| 1440 | LateParsedMethodDeclaration *LateMethod = 0; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1441 | DeclaratorChunk::FunctionTypeInfo &FTI |
Abramo Bagnara | 075f8f1 | 2010-12-10 16:29:40 +0000 | [diff] [blame] | 1442 | = DeclaratorInfo.getFunctionTypeInfo(); |
Eli Friedman | d33133c | 2009-07-22 21:45:50 +0000 | [diff] [blame] | 1443 | for (unsigned ParamIdx = 0; ParamIdx < FTI.NumArgs; ++ParamIdx) { |
| 1444 | if (LateMethod || FTI.ArgInfo[ParamIdx].DefaultArgTokens) { |
| 1445 | if (!LateMethod) { |
| 1446 | // Push this method onto the stack of late-parsed method |
| 1447 | // declarations. |
Douglas Gregor | d54eb44 | 2010-10-12 16:25:54 +0000 | [diff] [blame] | 1448 | LateMethod = new LateParsedMethodDeclaration(this, ThisDecl); |
| 1449 | getCurrentClass().LateParsedDeclarations.push_back(LateMethod); |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 1450 | LateMethod->TemplateScope = getCurScope()->isTemplateParamScope(); |
Eli Friedman | d33133c | 2009-07-22 21:45:50 +0000 | [diff] [blame] | 1451 | |
| 1452 | // Add all of the parameters prior to this one (they don't |
| 1453 | // have default arguments). |
| 1454 | LateMethod->DefaultArgs.reserve(FTI.NumArgs); |
| 1455 | for (unsigned I = 0; I < ParamIdx; ++I) |
| 1456 | LateMethod->DefaultArgs.push_back( |
Douglas Gregor | 8f8210c | 2010-03-02 01:29:43 +0000 | [diff] [blame] | 1457 | LateParsedDefaultArgument(FTI.ArgInfo[I].Param)); |
Eli Friedman | d33133c | 2009-07-22 21:45:50 +0000 | [diff] [blame] | 1458 | } |
| 1459 | |
| 1460 | // Add this parameter to the list of parameters (it or may |
| 1461 | // not have a default argument). |
| 1462 | LateMethod->DefaultArgs.push_back( |
| 1463 | LateParsedDefaultArgument(FTI.ArgInfo[ParamIdx].Param, |
| 1464 | FTI.ArgInfo[ParamIdx].DefaultArgTokens)); |
| 1465 | } |
| 1466 | } |
| 1467 | } |
| 1468 | |
Anders Carlsson | 1f3b6fd | 2011-01-16 23:56:42 +0000 | [diff] [blame] | 1469 | /// isCXX0XVirtSpecifier - Determine whether the next token is a C++0x |
| 1470 | /// virt-specifier. |
| 1471 | /// |
| 1472 | /// virt-specifier: |
| 1473 | /// override |
| 1474 | /// final |
Anders Carlsson | cc54d59 | 2011-01-22 16:56:46 +0000 | [diff] [blame] | 1475 | VirtSpecifiers::Specifier Parser::isCXX0XVirtSpecifier() const { |
Anders Carlsson | ce93a7c | 2011-01-22 23:01:49 +0000 | [diff] [blame] | 1476 | if (!getLang().CPlusPlus) |
Anders Carlsson | cc54d59 | 2011-01-22 16:56:46 +0000 | [diff] [blame] | 1477 | return VirtSpecifiers::VS_None; |
| 1478 | |
Anders Carlsson | b971dbd | 2011-01-17 03:05:47 +0000 | [diff] [blame] | 1479 | if (Tok.is(tok::identifier)) { |
| 1480 | IdentifierInfo *II = Tok.getIdentifierInfo(); |
Anders Carlsson | 1f3b6fd | 2011-01-16 23:56:42 +0000 | [diff] [blame] | 1481 | |
Anders Carlsson | 7eeb4ec | 2011-01-20 03:47:08 +0000 | [diff] [blame] | 1482 | // Initialize the contextual keywords. |
| 1483 | if (!Ident_final) { |
| 1484 | Ident_final = &PP.getIdentifierTable().get("final"); |
| 1485 | Ident_override = &PP.getIdentifierTable().get("override"); |
| 1486 | } |
| 1487 | |
Anders Carlsson | b971dbd | 2011-01-17 03:05:47 +0000 | [diff] [blame] | 1488 | if (II == Ident_override) |
| 1489 | return VirtSpecifiers::VS_Override; |
| 1490 | |
| 1491 | if (II == Ident_final) |
| 1492 | return VirtSpecifiers::VS_Final; |
| 1493 | } |
| 1494 | |
| 1495 | return VirtSpecifiers::VS_None; |
Anders Carlsson | 1f3b6fd | 2011-01-16 23:56:42 +0000 | [diff] [blame] | 1496 | } |
| 1497 | |
| 1498 | /// ParseOptionalCXX0XVirtSpecifierSeq - Parse a virt-specifier-seq. |
| 1499 | /// |
| 1500 | /// virt-specifier-seq: |
| 1501 | /// virt-specifier |
| 1502 | /// virt-specifier-seq virt-specifier |
Anders Carlsson | b971dbd | 2011-01-17 03:05:47 +0000 | [diff] [blame] | 1503 | void Parser::ParseOptionalCXX0XVirtSpecifierSeq(VirtSpecifiers &VS) { |
Anders Carlsson | b971dbd | 2011-01-17 03:05:47 +0000 | [diff] [blame] | 1504 | while (true) { |
Anders Carlsson | cc54d59 | 2011-01-22 16:56:46 +0000 | [diff] [blame] | 1505 | VirtSpecifiers::Specifier Specifier = isCXX0XVirtSpecifier(); |
Anders Carlsson | b971dbd | 2011-01-17 03:05:47 +0000 | [diff] [blame] | 1506 | if (Specifier == VirtSpecifiers::VS_None) |
| 1507 | return; |
| 1508 | |
| 1509 | // C++ [class.mem]p8: |
| 1510 | // 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] | 1511 | const char *PrevSpec = 0; |
Anders Carlsson | 46127a9 | 2011-01-22 15:58:16 +0000 | [diff] [blame] | 1512 | if (VS.SetSpecifier(Specifier, Tok.getLocation(), PrevSpec)) |
Anders Carlsson | b971dbd | 2011-01-17 03:05:47 +0000 | [diff] [blame] | 1513 | Diag(Tok.getLocation(), diag::err_duplicate_virt_specifier) |
| 1514 | << PrevSpec |
| 1515 | << FixItHint::CreateRemoval(Tok.getLocation()); |
| 1516 | |
Anders Carlsson | ce93a7c | 2011-01-22 23:01:49 +0000 | [diff] [blame] | 1517 | if (!getLang().CPlusPlus0x) |
| 1518 | Diag(Tok.getLocation(), diag::ext_override_control_keyword) |
| 1519 | << VirtSpecifiers::getSpecifierName(Specifier); |
Anders Carlsson | b971dbd | 2011-01-17 03:05:47 +0000 | [diff] [blame] | 1520 | ConsumeToken(); |
| 1521 | } |
Anders Carlsson | 1f3b6fd | 2011-01-16 23:56:42 +0000 | [diff] [blame] | 1522 | } |
| 1523 | |
Anders Carlsson | 8a29ba0 | 2011-03-25 14:53:29 +0000 | [diff] [blame] | 1524 | /// isCXX0XFinalKeyword - Determine whether the next token is a C++0x |
| 1525 | /// contextual 'final' keyword. |
| 1526 | bool Parser::isCXX0XFinalKeyword() const { |
Anders Carlsson | ce93a7c | 2011-01-22 23:01:49 +0000 | [diff] [blame] | 1527 | if (!getLang().CPlusPlus) |
Anders Carlsson | 8a29ba0 | 2011-03-25 14:53:29 +0000 | [diff] [blame] | 1528 | return false; |
Anders Carlsson | cc54d59 | 2011-01-22 16:56:46 +0000 | [diff] [blame] | 1529 | |
Anders Carlsson | 8a29ba0 | 2011-03-25 14:53:29 +0000 | [diff] [blame] | 1530 | if (!Tok.is(tok::identifier)) |
| 1531 | return false; |
Anders Carlsson | cc54d59 | 2011-01-22 16:56:46 +0000 | [diff] [blame] | 1532 | |
Anders Carlsson | 8a29ba0 | 2011-03-25 14:53:29 +0000 | [diff] [blame] | 1533 | // Initialize the contextual keywords. |
| 1534 | if (!Ident_final) { |
| 1535 | Ident_final = &PP.getIdentifierTable().get("final"); |
| 1536 | Ident_override = &PP.getIdentifierTable().get("override"); |
| 1537 | } |
Anders Carlsson | cc54d59 | 2011-01-22 16:56:46 +0000 | [diff] [blame] | 1538 | |
Anders Carlsson | 8a29ba0 | 2011-03-25 14:53:29 +0000 | [diff] [blame] | 1539 | return Tok.getIdentifierInfo() == Ident_final; |
Anders Carlsson | cc54d59 | 2011-01-22 16:56:46 +0000 | [diff] [blame] | 1540 | } |
| 1541 | |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1542 | /// ParseCXXClassMemberDeclaration - Parse a C++ class member declaration. |
| 1543 | /// |
| 1544 | /// member-declaration: |
| 1545 | /// decl-specifier-seq[opt] member-declarator-list[opt] ';' |
| 1546 | /// function-definition ';'[opt] |
| 1547 | /// ::[opt] nested-name-specifier template[opt] unqualified-id ';'[TODO] |
| 1548 | /// using-declaration [TODO] |
Anders Carlsson | 511d7ab | 2009-03-11 16:27:10 +0000 | [diff] [blame] | 1549 | /// [C++0x] static_assert-declaration |
Anders Carlsson | 5aeccdb | 2009-03-26 00:52:18 +0000 | [diff] [blame] | 1550 | /// template-declaration |
Chris Lattner | bc8d564 | 2008-12-18 01:12:00 +0000 | [diff] [blame] | 1551 | /// [GNU] '__extension__' member-declaration |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1552 | /// |
| 1553 | /// member-declarator-list: |
| 1554 | /// member-declarator |
| 1555 | /// member-declarator-list ',' member-declarator |
| 1556 | /// |
| 1557 | /// member-declarator: |
Anders Carlsson | 1f3b6fd | 2011-01-16 23:56:42 +0000 | [diff] [blame] | 1558 | /// declarator virt-specifier-seq[opt] pure-specifier[opt] |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1559 | /// declarator constant-initializer[opt] |
Richard Smith | 7a614d8 | 2011-06-11 17:19:42 +0000 | [diff] [blame] | 1560 | /// [C++11] declarator brace-or-equal-initializer[opt] |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1561 | /// identifier[opt] ':' constant-expression |
| 1562 | /// |
Anders Carlsson | 1f3b6fd | 2011-01-16 23:56:42 +0000 | [diff] [blame] | 1563 | /// virt-specifier-seq: |
| 1564 | /// virt-specifier |
| 1565 | /// virt-specifier-seq virt-specifier |
| 1566 | /// |
| 1567 | /// virt-specifier: |
| 1568 | /// override |
| 1569 | /// final |
| 1570 | /// new |
| 1571 | /// |
Sebastian Redl | e2b6833 | 2009-04-12 17:16:29 +0000 | [diff] [blame] | 1572 | /// pure-specifier: |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1573 | /// '= 0' |
| 1574 | /// |
| 1575 | /// constant-initializer: |
| 1576 | /// '=' constant-expression |
| 1577 | /// |
Douglas Gregor | 37b372b | 2009-08-20 22:52:58 +0000 | [diff] [blame] | 1578 | void Parser::ParseCXXClassMemberDeclaration(AccessSpecifier AS, |
John McCall | c9068d7 | 2010-07-16 08:13:16 +0000 | [diff] [blame] | 1579 | const ParsedTemplateInfo &TemplateInfo, |
| 1580 | ParsingDeclRAIIObject *TemplateDiags) { |
Douglas Gregor | 8a9013d | 2011-04-14 17:21:19 +0000 | [diff] [blame] | 1581 | if (Tok.is(tok::at)) { |
| 1582 | if (getLang().ObjC1 && NextToken().isObjCAtKeyword(tok::objc_defs)) |
| 1583 | Diag(Tok, diag::err_at_defs_cxx); |
| 1584 | else |
| 1585 | Diag(Tok, diag::err_at_in_class); |
| 1586 | |
| 1587 | ConsumeToken(); |
| 1588 | SkipUntil(tok::r_brace); |
| 1589 | return; |
| 1590 | } |
| 1591 | |
John McCall | 60fa3cf | 2009-12-11 02:10:03 +0000 | [diff] [blame] | 1592 | // Access declarations. |
| 1593 | if (!TemplateInfo.Kind && |
| 1594 | (Tok.is(tok::identifier) || Tok.is(tok::coloncolon)) && |
John McCall | 9ba6166 | 2010-02-26 08:45:28 +0000 | [diff] [blame] | 1595 | !TryAnnotateCXXScopeToken() && |
John McCall | 60fa3cf | 2009-12-11 02:10:03 +0000 | [diff] [blame] | 1596 | Tok.is(tok::annot_cxxscope)) { |
| 1597 | bool isAccessDecl = false; |
| 1598 | if (NextToken().is(tok::identifier)) |
| 1599 | isAccessDecl = GetLookAheadToken(2).is(tok::semi); |
| 1600 | else |
| 1601 | isAccessDecl = NextToken().is(tok::kw_operator); |
| 1602 | |
| 1603 | if (isAccessDecl) { |
| 1604 | // Collect the scope specifier token we annotated earlier. |
| 1605 | CXXScopeSpec SS; |
John McCall | b3d8748 | 2010-08-24 05:47:05 +0000 | [diff] [blame] | 1606 | ParseOptionalCXXScopeSpecifier(SS, ParsedType(), false); |
John McCall | 60fa3cf | 2009-12-11 02:10:03 +0000 | [diff] [blame] | 1607 | |
| 1608 | // Try to parse an unqualified-id. |
| 1609 | UnqualifiedId Name; |
John McCall | b3d8748 | 2010-08-24 05:47:05 +0000 | [diff] [blame] | 1610 | if (ParseUnqualifiedId(SS, false, true, true, ParsedType(), Name)) { |
John McCall | 60fa3cf | 2009-12-11 02:10:03 +0000 | [diff] [blame] | 1611 | SkipUntil(tok::semi); |
| 1612 | return; |
| 1613 | } |
| 1614 | |
| 1615 | // TODO: recover from mistakenly-qualified operator declarations. |
| 1616 | if (ExpectAndConsume(tok::semi, |
| 1617 | diag::err_expected_semi_after, |
| 1618 | "access declaration", |
| 1619 | tok::semi)) |
| 1620 | return; |
| 1621 | |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 1622 | Actions.ActOnUsingDeclaration(getCurScope(), AS, |
John McCall | 60fa3cf | 2009-12-11 02:10:03 +0000 | [diff] [blame] | 1623 | false, SourceLocation(), |
| 1624 | SS, Name, |
| 1625 | /* AttrList */ 0, |
| 1626 | /* IsTypeName */ false, |
| 1627 | SourceLocation()); |
| 1628 | return; |
| 1629 | } |
| 1630 | } |
| 1631 | |
Anders Carlsson | 511d7ab | 2009-03-11 16:27:10 +0000 | [diff] [blame] | 1632 | // static_assert-declaration |
Peter Collingbourne | c6eb44b | 2011-04-15 00:35:57 +0000 | [diff] [blame] | 1633 | 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] | 1634 | // FIXME: Check for templates |
Chris Lattner | 97144fc | 2009-04-02 04:16:50 +0000 | [diff] [blame] | 1635 | SourceLocation DeclEnd; |
| 1636 | ParseStaticAssertDeclaration(DeclEnd); |
Chris Lattner | 682bf92 | 2009-03-29 16:50:03 +0000 | [diff] [blame] | 1637 | return; |
| 1638 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1639 | |
Chris Lattner | 682bf92 | 2009-03-29 16:50:03 +0000 | [diff] [blame] | 1640 | if (Tok.is(tok::kw_template)) { |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1641 | assert(!TemplateInfo.TemplateParams && |
Douglas Gregor | 37b372b | 2009-08-20 22:52:58 +0000 | [diff] [blame] | 1642 | "Nested template improperly parsed?"); |
Chris Lattner | 97144fc | 2009-04-02 04:16:50 +0000 | [diff] [blame] | 1643 | SourceLocation DeclEnd; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1644 | ParseDeclarationStartingWithTemplate(Declarator::MemberContext, DeclEnd, |
Douglas Gregor | 4d9a16f | 2009-05-12 23:25:50 +0000 | [diff] [blame] | 1645 | AS); |
Chris Lattner | 682bf92 | 2009-03-29 16:50:03 +0000 | [diff] [blame] | 1646 | return; |
| 1647 | } |
Anders Carlsson | 5aeccdb | 2009-03-26 00:52:18 +0000 | [diff] [blame] | 1648 | |
Chris Lattner | bc8d564 | 2008-12-18 01:12:00 +0000 | [diff] [blame] | 1649 | // Handle: member-declaration ::= '__extension__' member-declaration |
| 1650 | if (Tok.is(tok::kw___extension__)) { |
| 1651 | // __extension__ silences extension warnings in the subexpression. |
| 1652 | ExtensionRAIIObject O(Diags); // Use RAII to do this. |
| 1653 | ConsumeToken(); |
John McCall | c9068d7 | 2010-07-16 08:13:16 +0000 | [diff] [blame] | 1654 | return ParseCXXClassMemberDeclaration(AS, TemplateInfo, TemplateDiags); |
Chris Lattner | bc8d564 | 2008-12-18 01:12:00 +0000 | [diff] [blame] | 1655 | } |
Douglas Gregor | 9cfbe48 | 2009-06-20 00:51:54 +0000 | [diff] [blame] | 1656 | |
Chris Lattner | 4ed5d91 | 2010-02-02 01:23:29 +0000 | [diff] [blame] | 1657 | // Don't parse FOO:BAR as if it were a typo for FOO::BAR, in this context it |
| 1658 | // is a bitfield. |
Chris Lattner | a1efc8c | 2009-12-10 01:59:24 +0000 | [diff] [blame] | 1659 | ColonProtectionRAIIObject X(*this); |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 1660 | |
John McCall | 0b7e678 | 2011-03-24 11:26:52 +0000 | [diff] [blame] | 1661 | ParsedAttributesWithRange attrs(AttrFactory); |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 1662 | // Optional C++0x attribute-specifier |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 1663 | MaybeParseCXX0XAttributes(attrs); |
| 1664 | MaybeParseMicrosoftAttributes(attrs); |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 1665 | |
Douglas Gregor | 9cfbe48 | 2009-06-20 00:51:54 +0000 | [diff] [blame] | 1666 | if (Tok.is(tok::kw_using)) { |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 1667 | ProhibitAttributes(attrs); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1668 | |
Douglas Gregor | 9cfbe48 | 2009-06-20 00:51:54 +0000 | [diff] [blame] | 1669 | // Eat 'using'. |
| 1670 | SourceLocation UsingLoc = ConsumeToken(); |
| 1671 | |
| 1672 | if (Tok.is(tok::kw_namespace)) { |
| 1673 | Diag(UsingLoc, diag::err_using_namespace_in_class); |
| 1674 | SkipUntil(tok::semi, true, true); |
Chris Lattner | ae50d50 | 2010-02-02 00:43:15 +0000 | [diff] [blame] | 1675 | } else { |
Douglas Gregor | 9cfbe48 | 2009-06-20 00:51:54 +0000 | [diff] [blame] | 1676 | SourceLocation DeclEnd; |
Richard Smith | 3e4c6c4 | 2011-05-05 21:57:07 +0000 | [diff] [blame] | 1677 | // Otherwise, it must be a using-declaration or an alias-declaration. |
John McCall | 78b8105 | 2010-11-10 02:40:36 +0000 | [diff] [blame] | 1678 | ParseUsingDeclaration(Declarator::MemberContext, TemplateInfo, |
| 1679 | UsingLoc, DeclEnd, AS); |
Douglas Gregor | 9cfbe48 | 2009-06-20 00:51:54 +0000 | [diff] [blame] | 1680 | } |
| 1681 | return; |
| 1682 | } |
| 1683 | |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1684 | // decl-specifier-seq: |
| 1685 | // Parse the common declaration-specifiers piece. |
John McCall | c9068d7 | 2010-07-16 08:13:16 +0000 | [diff] [blame] | 1686 | ParsingDeclSpec DS(*this, TemplateDiags); |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 1687 | DS.takeAttributesFrom(attrs); |
Douglas Gregor | 37b372b | 2009-08-20 22:52:58 +0000 | [diff] [blame] | 1688 | ParseDeclarationSpecifiers(DS, TemplateInfo, AS, DSC_class); |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1689 | |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 1690 | MultiTemplateParamsArg TemplateParams(Actions, |
John McCall | dd4a3b0 | 2009-09-16 22:47:08 +0000 | [diff] [blame] | 1691 | TemplateInfo.TemplateParams? TemplateInfo.TemplateParams->data() : 0, |
| 1692 | TemplateInfo.TemplateParams? TemplateInfo.TemplateParams->size() : 0); |
| 1693 | |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1694 | if (Tok.is(tok::semi)) { |
| 1695 | ConsumeToken(); |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 1696 | Decl *TheDecl = |
Chandler Carruth | 0f4be74 | 2011-05-03 18:35:10 +0000 | [diff] [blame] | 1697 | Actions.ParsedFreeStandingDeclSpec(getCurScope(), AS, DS, TemplateParams); |
John McCall | c9068d7 | 2010-07-16 08:13:16 +0000 | [diff] [blame] | 1698 | DS.complete(TheDecl); |
John McCall | 67d1a67 | 2009-08-06 02:15:43 +0000 | [diff] [blame] | 1699 | return; |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1700 | } |
Argyrios Kyrtzidis | 0795232 | 2008-07-01 10:37:29 +0000 | [diff] [blame] | 1701 | |
John McCall | 54abf7d | 2009-11-04 02:18:39 +0000 | [diff] [blame] | 1702 | ParsingDeclarator DeclaratorInfo(*this, DS, Declarator::MemberContext); |
Nico Weber | 4867347 | 2011-01-28 06:07:34 +0000 | [diff] [blame] | 1703 | VirtSpecifiers VS; |
Francois Pichet | 6a24747 | 2011-05-11 02:14:46 +0000 | [diff] [blame] | 1704 | ExprResult Init; |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1705 | |
Argyrios Kyrtzidis | 3a9fdb4 | 2008-06-28 08:10:48 +0000 | [diff] [blame] | 1706 | if (Tok.isNot(tok::colon)) { |
Chris Lattner | a1efc8c | 2009-12-10 01:59:24 +0000 | [diff] [blame] | 1707 | // Don't parse FOO:BAR as if it were a typo for FOO::BAR. |
| 1708 | ColonProtectionRAIIObject X(*this); |
| 1709 | |
Argyrios Kyrtzidis | 3a9fdb4 | 2008-06-28 08:10:48 +0000 | [diff] [blame] | 1710 | // Parse the first declarator. |
| 1711 | ParseDeclarator(DeclaratorInfo); |
| 1712 | // Error parsing the declarator? |
Douglas Gregor | 10bd368 | 2008-11-17 22:58:34 +0000 | [diff] [blame] | 1713 | if (!DeclaratorInfo.hasName()) { |
Argyrios Kyrtzidis | 3a9fdb4 | 2008-06-28 08:10:48 +0000 | [diff] [blame] | 1714 | // If so, skip until the semi-colon or a }. |
Sebastian Redl | d941fa4 | 2011-04-24 16:27:48 +0000 | [diff] [blame] | 1715 | SkipUntil(tok::r_brace, true, true); |
Argyrios Kyrtzidis | 3a9fdb4 | 2008-06-28 08:10:48 +0000 | [diff] [blame] | 1716 | if (Tok.is(tok::semi)) |
| 1717 | ConsumeToken(); |
Chris Lattner | 682bf92 | 2009-03-29 16:50:03 +0000 | [diff] [blame] | 1718 | return; |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1719 | } |
| 1720 | |
Nico Weber | 4867347 | 2011-01-28 06:07:34 +0000 | [diff] [blame] | 1721 | ParseOptionalCXX0XVirtSpecifierSeq(VS); |
| 1722 | |
John Thompson | 1b2fc0f | 2009-11-25 22:58:06 +0000 | [diff] [blame] | 1723 | // If attributes exist after the declarator, but before an '{', parse them. |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 1724 | MaybeParseGNUAttributes(DeclaratorInfo); |
John Thompson | 1b2fc0f | 2009-11-25 22:58:06 +0000 | [diff] [blame] | 1725 | |
Francois Pichet | 6a24747 | 2011-05-11 02:14:46 +0000 | [diff] [blame] | 1726 | // MSVC permits pure specifier on inline functions declared at class scope. |
| 1727 | // Hence check for =0 before checking for function definition. |
| 1728 | if (getLang().Microsoft && Tok.is(tok::equal) && |
| 1729 | DeclaratorInfo.isFunctionDeclarator() && |
| 1730 | NextToken().is(tok::numeric_constant)) { |
| 1731 | ConsumeToken(); |
| 1732 | Init = ParseInitializer(); |
| 1733 | if (Init.isInvalid()) |
| 1734 | SkipUntil(tok::comma, true, true); |
| 1735 | } |
| 1736 | |
Sean Hunt | e4246a6 | 2011-05-12 06:15:49 +0000 | [diff] [blame] | 1737 | bool IsDefinition = false; |
Argyrios Kyrtzidis | 3a9fdb4 | 2008-06-28 08:10:48 +0000 | [diff] [blame] | 1738 | // function-definition: |
Richard Smith | 7a614d8 | 2011-06-11 17:19:42 +0000 | [diff] [blame] | 1739 | // |
| 1740 | // In C++11, a non-function declarator followed by an open brace is a |
| 1741 | // braced-init-list for an in-class member initialization, not an |
| 1742 | // erroneous function definition. |
| 1743 | if (Tok.is(tok::l_brace) && !getLang().CPlusPlus0x) { |
Sean Hunt | e4246a6 | 2011-05-12 06:15:49 +0000 | [diff] [blame] | 1744 | IsDefinition = true; |
| 1745 | } else if (DeclaratorInfo.isFunctionDeclarator()) { |
Richard Smith | 7a614d8 | 2011-06-11 17:19:42 +0000 | [diff] [blame] | 1746 | if (Tok.is(tok::l_brace) || Tok.is(tok::colon) || Tok.is(tok::kw_try)) { |
Sean Hunt | e4246a6 | 2011-05-12 06:15:49 +0000 | [diff] [blame] | 1747 | IsDefinition = true; |
| 1748 | } else if (Tok.is(tok::equal)) { |
| 1749 | const Token &KW = NextToken(); |
| 1750 | if (KW.is(tok::kw_default) || KW.is(tok::kw_delete)) |
| 1751 | IsDefinition = true; |
| 1752 | } |
| 1753 | } |
| 1754 | |
| 1755 | if (IsDefinition) { |
Argyrios Kyrtzidis | 3a9fdb4 | 2008-06-28 08:10:48 +0000 | [diff] [blame] | 1756 | if (!DeclaratorInfo.isFunctionDeclarator()) { |
| 1757 | Diag(Tok, diag::err_func_def_no_params); |
| 1758 | ConsumeBrace(); |
| 1759 | SkipUntil(tok::r_brace, true); |
Douglas Gregor | 9ea416e | 2011-01-19 16:41:58 +0000 | [diff] [blame] | 1760 | |
| 1761 | // Consume the optional ';' |
| 1762 | if (Tok.is(tok::semi)) |
| 1763 | ConsumeToken(); |
Chris Lattner | 682bf92 | 2009-03-29 16:50:03 +0000 | [diff] [blame] | 1764 | return; |
Argyrios Kyrtzidis | 3a9fdb4 | 2008-06-28 08:10:48 +0000 | [diff] [blame] | 1765 | } |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1766 | |
Argyrios Kyrtzidis | 3a9fdb4 | 2008-06-28 08:10:48 +0000 | [diff] [blame] | 1767 | if (DS.getStorageClassSpec() == DeclSpec::SCS_typedef) { |
| 1768 | Diag(Tok, diag::err_function_declared_typedef); |
| 1769 | // This recovery skips the entire function body. It would be nice |
| 1770 | // to simply call ParseCXXInlineMethodDef() below, however Sema |
| 1771 | // assumes the declarator represents a function, not a typedef. |
| 1772 | ConsumeBrace(); |
| 1773 | SkipUntil(tok::r_brace, true); |
Douglas Gregor | 9ea416e | 2011-01-19 16:41:58 +0000 | [diff] [blame] | 1774 | |
| 1775 | // Consume the optional ';' |
| 1776 | if (Tok.is(tok::semi)) |
| 1777 | ConsumeToken(); |
Chris Lattner | 682bf92 | 2009-03-29 16:50:03 +0000 | [diff] [blame] | 1778 | return; |
Argyrios Kyrtzidis | 3a9fdb4 | 2008-06-28 08:10:48 +0000 | [diff] [blame] | 1779 | } |
| 1780 | |
Francois Pichet | 6a24747 | 2011-05-11 02:14:46 +0000 | [diff] [blame] | 1781 | ParseCXXInlineMethodDef(AS, DeclaratorInfo, TemplateInfo, VS, Init); |
Sean Hunt | e4246a6 | 2011-05-12 06:15:49 +0000 | [diff] [blame] | 1782 | |
| 1783 | // Consume the ';' - it's optional unless we have a delete or default |
| 1784 | if (Tok.is(tok::semi)) { |
Douglas Gregor | 9ea416e | 2011-01-19 16:41:58 +0000 | [diff] [blame] | 1785 | ConsumeToken(); |
Sean Hunt | e4246a6 | 2011-05-12 06:15:49 +0000 | [diff] [blame] | 1786 | } |
Douglas Gregor | 9ea416e | 2011-01-19 16:41:58 +0000 | [diff] [blame] | 1787 | |
Chris Lattner | 682bf92 | 2009-03-29 16:50:03 +0000 | [diff] [blame] | 1788 | return; |
Argyrios Kyrtzidis | 3a9fdb4 | 2008-06-28 08:10:48 +0000 | [diff] [blame] | 1789 | } |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1790 | } |
| 1791 | |
| 1792 | // member-declarator-list: |
| 1793 | // member-declarator |
| 1794 | // member-declarator-list ',' member-declarator |
| 1795 | |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 1796 | SmallVector<Decl *, 8> DeclsInGroup; |
John McCall | 60d7b3a | 2010-08-24 06:29:42 +0000 | [diff] [blame] | 1797 | ExprResult BitfieldSize; |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1798 | |
| 1799 | while (1) { |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1800 | // member-declarator: |
| 1801 | // declarator pure-specifier[opt] |
Richard Smith | 7a614d8 | 2011-06-11 17:19:42 +0000 | [diff] [blame] | 1802 | // declarator brace-or-equal-initializer[opt] |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1803 | // identifier[opt] ':' constant-expression |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1804 | if (Tok.is(tok::colon)) { |
| 1805 | ConsumeToken(); |
Sebastian Redl | 0e9eabc | 2008-12-09 13:15:23 +0000 | [diff] [blame] | 1806 | BitfieldSize = ParseConstantExpression(); |
| 1807 | if (BitfieldSize.isInvalid()) |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1808 | SkipUntil(tok::comma, true, true); |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1809 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1810 | |
Chris Lattner | e656325 | 2010-06-13 05:34:18 +0000 | [diff] [blame] | 1811 | // If a simple-asm-expr is present, parse it. |
| 1812 | if (Tok.is(tok::kw_asm)) { |
| 1813 | SourceLocation Loc; |
John McCall | 60d7b3a | 2010-08-24 06:29:42 +0000 | [diff] [blame] | 1814 | ExprResult AsmLabel(ParseSimpleAsm(&Loc)); |
Chris Lattner | e656325 | 2010-06-13 05:34:18 +0000 | [diff] [blame] | 1815 | if (AsmLabel.isInvalid()) |
| 1816 | SkipUntil(tok::comma, true, true); |
| 1817 | |
| 1818 | DeclaratorInfo.setAsmLabel(AsmLabel.release()); |
| 1819 | DeclaratorInfo.SetRangeEnd(Loc); |
| 1820 | } |
| 1821 | |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1822 | // If attributes exist after the declarator, parse them. |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 1823 | MaybeParseGNUAttributes(DeclaratorInfo); |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1824 | |
Richard Smith | 7a614d8 | 2011-06-11 17:19:42 +0000 | [diff] [blame] | 1825 | // FIXME: When g++ adds support for this, we'll need to check whether it |
| 1826 | // goes before or after the GNU attributes and __asm__. |
| 1827 | ParseOptionalCXX0XVirtSpecifierSeq(VS); |
| 1828 | |
| 1829 | bool HasDeferredInitializer = false; |
| 1830 | if (Tok.is(tok::equal) || Tok.is(tok::l_brace)) { |
| 1831 | if (BitfieldSize.get()) { |
| 1832 | Diag(Tok, diag::err_bitfield_member_init); |
| 1833 | SkipUntil(tok::comma, true, true); |
| 1834 | } else { |
Douglas Gregor | 555f57e | 2011-06-25 00:56:27 +0000 | [diff] [blame] | 1835 | HasDeferredInitializer = !DeclaratorInfo.isDeclarationOfFunction() && |
Richard Smith | 7a614d8 | 2011-06-11 17:19:42 +0000 | [diff] [blame] | 1836 | DeclaratorInfo.getDeclSpec().getStorageClassSpec() |
Richard Smith | c2cdd53 | 2011-06-12 11:43:46 +0000 | [diff] [blame] | 1837 | != DeclSpec::SCS_static && |
| 1838 | DeclaratorInfo.getDeclSpec().getStorageClassSpec() |
| 1839 | != DeclSpec::SCS_typedef; |
Richard Smith | 7a614d8 | 2011-06-11 17:19:42 +0000 | [diff] [blame] | 1840 | |
| 1841 | if (!HasDeferredInitializer) { |
| 1842 | SourceLocation EqualLoc; |
| 1843 | Init = ParseCXXMemberInitializer( |
Douglas Gregor | 555f57e | 2011-06-25 00:56:27 +0000 | [diff] [blame] | 1844 | DeclaratorInfo.isDeclarationOfFunction(), EqualLoc); |
Richard Smith | 7a614d8 | 2011-06-11 17:19:42 +0000 | [diff] [blame] | 1845 | if (Init.isInvalid()) |
| 1846 | SkipUntil(tok::comma, true, true); |
| 1847 | } |
| 1848 | } |
| 1849 | } |
| 1850 | |
Argyrios Kyrtzidis | 0795232 | 2008-07-01 10:37:29 +0000 | [diff] [blame] | 1851 | // 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] | 1852 | // this call will *not* return the created decl; It will return null. |
Argyrios Kyrtzidis | 0795232 | 2008-07-01 10:37:29 +0000 | [diff] [blame] | 1853 | // See Sema::ActOnCXXMemberDeclarator for details. |
John McCall | 67d1a67 | 2009-08-06 02:15:43 +0000 | [diff] [blame] | 1854 | |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 1855 | Decl *ThisDecl = 0; |
John McCall | 67d1a67 | 2009-08-06 02:15:43 +0000 | [diff] [blame] | 1856 | if (DS.isFriendSpecified()) { |
John McCall | bbbcdd9 | 2009-09-11 21:02:39 +0000 | [diff] [blame] | 1857 | // TODO: handle initializers, bitfields, 'delete' |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 1858 | ThisDecl = Actions.ActOnFriendFunctionDecl(getCurScope(), DeclaratorInfo, |
John McCall | bbbcdd9 | 2009-09-11 21:02:39 +0000 | [diff] [blame] | 1859 | /*IsDefinition*/ false, |
| 1860 | move(TemplateParams)); |
Douglas Gregor | 37b372b | 2009-08-20 22:52:58 +0000 | [diff] [blame] | 1861 | } else { |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 1862 | ThisDecl = Actions.ActOnCXXMemberDeclarator(getCurScope(), AS, |
John McCall | 67d1a67 | 2009-08-06 02:15:43 +0000 | [diff] [blame] | 1863 | DeclaratorInfo, |
Douglas Gregor | 37b372b | 2009-08-20 22:52:58 +0000 | [diff] [blame] | 1864 | move(TemplateParams), |
John McCall | 67d1a67 | 2009-08-06 02:15:43 +0000 | [diff] [blame] | 1865 | BitfieldSize.release(), |
Richard Smith | 7a614d8 | 2011-06-11 17:19:42 +0000 | [diff] [blame] | 1866 | VS, Init.release(), |
| 1867 | HasDeferredInitializer, |
| 1868 | /*IsDefinition*/ false); |
Douglas Gregor | 37b372b | 2009-08-20 22:52:58 +0000 | [diff] [blame] | 1869 | } |
Chris Lattner | 682bf92 | 2009-03-29 16:50:03 +0000 | [diff] [blame] | 1870 | if (ThisDecl) |
| 1871 | DeclsInGroup.push_back(ThisDecl); |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1872 | |
Douglas Gregor | 72b505b | 2008-12-16 21:30:33 +0000 | [diff] [blame] | 1873 | if (DeclaratorInfo.isFunctionDeclarator() && |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1874 | DeclaratorInfo.getDeclSpec().getStorageClassSpec() |
Douglas Gregor | 72b505b | 2008-12-16 21:30:33 +0000 | [diff] [blame] | 1875 | != DeclSpec::SCS_typedef) { |
Eli Friedman | d33133c | 2009-07-22 21:45:50 +0000 | [diff] [blame] | 1876 | HandleMemberFunctionDefaultArgs(DeclaratorInfo, ThisDecl); |
Douglas Gregor | 72b505b | 2008-12-16 21:30:33 +0000 | [diff] [blame] | 1877 | } |
| 1878 | |
John McCall | 54abf7d | 2009-11-04 02:18:39 +0000 | [diff] [blame] | 1879 | DeclaratorInfo.complete(ThisDecl); |
| 1880 | |
Richard Smith | 7a614d8 | 2011-06-11 17:19:42 +0000 | [diff] [blame] | 1881 | if (HasDeferredInitializer) { |
| 1882 | if (!getLang().CPlusPlus0x) |
| 1883 | Diag(Tok, diag::warn_nonstatic_member_init_accepted_as_extension); |
| 1884 | |
| 1885 | if (DeclaratorInfo.isArrayOfUnknownBound()) { |
| 1886 | // C++0x [dcl.array]p3: An array bound may also be omitted when the |
| 1887 | // declarator is followed by an initializer. |
| 1888 | // |
| 1889 | // A brace-or-equal-initializer for a member-declarator is not an |
| 1890 | // initializer in the gramamr, so this is ill-formed. |
| 1891 | Diag(Tok, diag::err_incomplete_array_member_init); |
| 1892 | SkipUntil(tok::comma, true, true); |
| 1893 | // Avoid later warnings about a class member of incomplete type. |
| 1894 | ThisDecl->setInvalidDecl(); |
| 1895 | } else |
| 1896 | ParseCXXNonStaticMemberInitializer(ThisDecl); |
| 1897 | } |
| 1898 | |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1899 | // If we don't have a comma, it is either the end of the list (a ';') |
| 1900 | // or an error, bail out. |
| 1901 | if (Tok.isNot(tok::comma)) |
| 1902 | break; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1903 | |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1904 | // Consume the comma. |
| 1905 | ConsumeToken(); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1906 | |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1907 | // Parse the next declarator. |
| 1908 | DeclaratorInfo.clear(); |
Nico Weber | 4867347 | 2011-01-28 06:07:34 +0000 | [diff] [blame] | 1909 | VS.clear(); |
Sebastian Redl | 15faa7f | 2008-12-09 20:22:58 +0000 | [diff] [blame] | 1910 | BitfieldSize = 0; |
| 1911 | Init = 0; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1912 | |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1913 | // Attributes are only allowed on the second declarator. |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 1914 | MaybeParseGNUAttributes(DeclaratorInfo); |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1915 | |
Argyrios Kyrtzidis | 3a9fdb4 | 2008-06-28 08:10:48 +0000 | [diff] [blame] | 1916 | if (Tok.isNot(tok::colon)) |
| 1917 | ParseDeclarator(DeclaratorInfo); |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1918 | } |
| 1919 | |
Chris Lattner | ae50d50 | 2010-02-02 00:43:15 +0000 | [diff] [blame] | 1920 | if (ExpectAndConsume(tok::semi, diag::err_expected_semi_decl_list)) { |
| 1921 | // Skip to end of block or statement. |
| 1922 | SkipUntil(tok::r_brace, true, true); |
| 1923 | // If we stopped at a ';', eat it. |
| 1924 | if (Tok.is(tok::semi)) ConsumeToken(); |
Chris Lattner | 682bf92 | 2009-03-29 16:50:03 +0000 | [diff] [blame] | 1925 | return; |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1926 | } |
| 1927 | |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 1928 | Actions.FinalizeDeclaratorGroup(getCurScope(), DS, DeclsInGroup.data(), |
Chris Lattner | ae50d50 | 2010-02-02 00:43:15 +0000 | [diff] [blame] | 1929 | DeclsInGroup.size()); |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1930 | } |
| 1931 | |
Richard Smith | 7a614d8 | 2011-06-11 17:19:42 +0000 | [diff] [blame] | 1932 | /// ParseCXXMemberInitializer - Parse the brace-or-equal-initializer or |
| 1933 | /// pure-specifier. Also detect and reject any attempted defaulted/deleted |
| 1934 | /// function definition. The location of the '=', if any, will be placed in |
| 1935 | /// EqualLoc. |
| 1936 | /// |
| 1937 | /// pure-specifier: |
| 1938 | /// '= 0' |
| 1939 | /// |
| 1940 | /// brace-or-equal-initializer: |
| 1941 | /// '=' initializer-expression |
| 1942 | /// braced-init-list [TODO] |
| 1943 | /// |
| 1944 | /// initializer-clause: |
| 1945 | /// assignment-expression |
| 1946 | /// braced-init-list [TODO] |
| 1947 | /// |
| 1948 | /// defaulted/deleted function-definition: |
| 1949 | /// '=' 'default' |
| 1950 | /// '=' 'delete' |
| 1951 | /// |
| 1952 | /// Prior to C++0x, the assignment-expression in an initializer-clause must |
| 1953 | /// be a constant-expression. |
| 1954 | ExprResult Parser::ParseCXXMemberInitializer(bool IsFunction, |
| 1955 | SourceLocation &EqualLoc) { |
| 1956 | assert((Tok.is(tok::equal) || Tok.is(tok::l_brace)) |
| 1957 | && "Data member initializer not starting with '=' or '{'"); |
| 1958 | |
| 1959 | if (Tok.is(tok::equal)) { |
| 1960 | EqualLoc = ConsumeToken(); |
| 1961 | if (Tok.is(tok::kw_delete)) { |
| 1962 | // In principle, an initializer of '= delete p;' is legal, but it will |
| 1963 | // never type-check. It's better to diagnose it as an ill-formed expression |
| 1964 | // than as an ill-formed deleted non-function member. |
| 1965 | // An initializer of '= delete p, foo' will never be parsed, because |
| 1966 | // a top-level comma always ends the initializer expression. |
| 1967 | const Token &Next = NextToken(); |
| 1968 | if (IsFunction || Next.is(tok::semi) || Next.is(tok::comma) || |
| 1969 | Next.is(tok::eof)) { |
| 1970 | if (IsFunction) |
| 1971 | Diag(ConsumeToken(), diag::err_default_delete_in_multiple_declaration) |
| 1972 | << 1 /* delete */; |
| 1973 | else |
| 1974 | Diag(ConsumeToken(), diag::err_deleted_non_function); |
| 1975 | return ExprResult(); |
| 1976 | } |
| 1977 | } else if (Tok.is(tok::kw_default)) { |
| 1978 | Diag(ConsumeToken(), diag::err_default_special_members); |
| 1979 | if (IsFunction) |
| 1980 | Diag(Tok, diag::err_default_delete_in_multiple_declaration) |
| 1981 | << 0 /* default */; |
| 1982 | else |
| 1983 | Diag(ConsumeToken(), diag::err_default_special_members); |
| 1984 | return ExprResult(); |
| 1985 | } |
| 1986 | |
| 1987 | return ParseInitializer(); |
| 1988 | } else |
| 1989 | return ExprError(Diag(Tok, diag::err_generalized_initializer_lists)); |
| 1990 | } |
| 1991 | |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1992 | /// ParseCXXMemberSpecification - Parse the class definition. |
| 1993 | /// |
| 1994 | /// member-specification: |
| 1995 | /// member-declaration member-specification[opt] |
| 1996 | /// access-specifier ':' member-specification[opt] |
| 1997 | /// |
| 1998 | void Parser::ParseCXXMemberSpecification(SourceLocation RecordLoc, |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 1999 | unsigned TagType, Decl *TagDecl) { |
Sanjiv Gupta | 31fc07d | 2008-10-31 09:52:39 +0000 | [diff] [blame] | 2000 | assert((TagType == DeclSpec::TST_struct || |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 2001 | TagType == DeclSpec::TST_union || |
Sanjiv Gupta | 31fc07d | 2008-10-31 09:52:39 +0000 | [diff] [blame] | 2002 | TagType == DeclSpec::TST_class) && "Invalid TagType!"); |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 2003 | |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 2004 | PrettyDeclStackTraceEntry CrashInfo(Actions, TagDecl, RecordLoc, |
| 2005 | "parsing struct/union/class body"); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2006 | |
Douglas Gregor | 26997fd | 2010-01-16 20:52:59 +0000 | [diff] [blame] | 2007 | // Determine whether this is a non-nested class. Note that local |
| 2008 | // classes are *not* considered to be nested classes. |
| 2009 | bool NonNestedClass = true; |
| 2010 | if (!ClassStack.empty()) { |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 2011 | for (const Scope *S = getCurScope(); S; S = S->getParent()) { |
Douglas Gregor | 26997fd | 2010-01-16 20:52:59 +0000 | [diff] [blame] | 2012 | if (S->isClassScope()) { |
| 2013 | // We're inside a class scope, so this is a nested class. |
| 2014 | NonNestedClass = false; |
| 2015 | break; |
| 2016 | } |
| 2017 | |
| 2018 | if ((S->getFlags() & Scope::FnScope)) { |
| 2019 | // If we're in a function or function template declared in the |
| 2020 | // body of a class, then this is a local class rather than a |
| 2021 | // nested class. |
| 2022 | const Scope *Parent = S->getParent(); |
| 2023 | if (Parent->isTemplateParamScope()) |
| 2024 | Parent = Parent->getParent(); |
| 2025 | if (Parent->isClassScope()) |
| 2026 | break; |
| 2027 | } |
| 2028 | } |
| 2029 | } |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 2030 | |
| 2031 | // Enter a scope for the class. |
Douglas Gregor | 3218c4b | 2009-01-09 22:42:13 +0000 | [diff] [blame] | 2032 | ParseScope ClassScope(this, Scope::ClassScope|Scope::DeclScope); |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 2033 | |
Douglas Gregor | 6569d68 | 2009-05-27 23:11:45 +0000 | [diff] [blame] | 2034 | // Note that we are parsing a new (potentially-nested) class definition. |
Douglas Gregor | 26997fd | 2010-01-16 20:52:59 +0000 | [diff] [blame] | 2035 | ParsingClassDefinition ParsingDef(*this, TagDecl, NonNestedClass); |
Douglas Gregor | 6569d68 | 2009-05-27 23:11:45 +0000 | [diff] [blame] | 2036 | |
Douglas Gregor | ddc29e1 | 2009-02-06 22:42:48 +0000 | [diff] [blame] | 2037 | if (TagDecl) |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 2038 | Actions.ActOnTagStartDefinition(getCurScope(), TagDecl); |
John McCall | bd0dfa5 | 2009-12-19 21:48:58 +0000 | [diff] [blame] | 2039 | |
Anders Carlsson | b184a18 | 2011-03-25 14:46:08 +0000 | [diff] [blame] | 2040 | SourceLocation FinalLoc; |
| 2041 | |
| 2042 | // Parse the optional 'final' keyword. |
| 2043 | if (getLang().CPlusPlus && Tok.is(tok::identifier)) { |
| 2044 | IdentifierInfo *II = Tok.getIdentifierInfo(); |
| 2045 | |
| 2046 | // Initialize the contextual keywords. |
| 2047 | if (!Ident_final) { |
| 2048 | Ident_final = &PP.getIdentifierTable().get("final"); |
| 2049 | Ident_override = &PP.getIdentifierTable().get("override"); |
| 2050 | } |
| 2051 | |
| 2052 | if (II == Ident_final) |
| 2053 | FinalLoc = ConsumeToken(); |
| 2054 | |
| 2055 | if (!getLang().CPlusPlus0x) |
| 2056 | Diag(FinalLoc, diag::ext_override_control_keyword) << "final"; |
| 2057 | } |
Anders Carlsson | cc54d59 | 2011-01-22 16:56:46 +0000 | [diff] [blame] | 2058 | |
John McCall | bd0dfa5 | 2009-12-19 21:48:58 +0000 | [diff] [blame] | 2059 | if (Tok.is(tok::colon)) { |
| 2060 | ParseBaseClause(TagDecl); |
| 2061 | |
| 2062 | if (!Tok.is(tok::l_brace)) { |
| 2063 | Diag(Tok, diag::err_expected_lbrace_after_base_specifiers); |
John McCall | db7bb4a | 2010-03-17 00:38:33 +0000 | [diff] [blame] | 2064 | |
| 2065 | if (TagDecl) |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 2066 | Actions.ActOnTagDefinitionError(getCurScope(), TagDecl); |
John McCall | bd0dfa5 | 2009-12-19 21:48:58 +0000 | [diff] [blame] | 2067 | return; |
| 2068 | } |
| 2069 | } |
| 2070 | |
| 2071 | assert(Tok.is(tok::l_brace)); |
| 2072 | |
| 2073 | SourceLocation LBraceLoc = ConsumeBrace(); |
| 2074 | |
John McCall | 42a4f66 | 2010-05-28 08:11:17 +0000 | [diff] [blame] | 2075 | if (TagDecl) |
Anders Carlsson | 2c3ee54 | 2011-03-25 14:31:08 +0000 | [diff] [blame] | 2076 | Actions.ActOnStartCXXMemberDeclarations(getCurScope(), TagDecl, FinalLoc, |
Anders Carlsson | dfc2f10 | 2011-01-22 17:51:53 +0000 | [diff] [blame] | 2077 | LBraceLoc); |
John McCall | f936815 | 2009-12-20 07:58:13 +0000 | [diff] [blame] | 2078 | |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 2079 | // C++ 11p3: Members of a class defined with the keyword class are private |
| 2080 | // by default. Members of a class defined with the keywords struct or union |
| 2081 | // are public by default. |
| 2082 | AccessSpecifier CurAS; |
| 2083 | if (TagType == DeclSpec::TST_class) |
| 2084 | CurAS = AS_private; |
| 2085 | else |
| 2086 | CurAS = AS_public; |
| 2087 | |
Douglas Gregor | 07976d2 | 2010-06-21 22:31:09 +0000 | [diff] [blame] | 2088 | SourceLocation RBraceLoc; |
| 2089 | if (TagDecl) { |
| 2090 | // While we still have something to read, read the member-declarations. |
| 2091 | while (Tok.isNot(tok::r_brace) && Tok.isNot(tok::eof)) { |
| 2092 | // Each iteration of this loop reads one member-declaration. |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2093 | |
Francois Pichet | 563a645 | 2011-05-25 10:19:49 +0000 | [diff] [blame] | 2094 | if (getLang().Microsoft && (Tok.is(tok::kw___if_exists) || |
| 2095 | Tok.is(tok::kw___if_not_exists))) { |
| 2096 | ParseMicrosoftIfExistsClassDeclaration((DeclSpec::TST)TagType, CurAS); |
| 2097 | continue; |
| 2098 | } |
| 2099 | |
Douglas Gregor | 07976d2 | 2010-06-21 22:31:09 +0000 | [diff] [blame] | 2100 | // Check for extraneous top-level semicolon. |
| 2101 | if (Tok.is(tok::semi)) { |
| 2102 | Diag(Tok, diag::ext_extra_struct_semi) |
| 2103 | << DeclSpec::getSpecifierName((DeclSpec::TST)TagType) |
| 2104 | << FixItHint::CreateRemoval(Tok.getLocation()); |
| 2105 | ConsumeToken(); |
| 2106 | continue; |
| 2107 | } |
| 2108 | |
| 2109 | AccessSpecifier AS = getAccessSpecifierIfPresent(); |
| 2110 | if (AS != AS_none) { |
| 2111 | // Current token is a C++ access specifier. |
| 2112 | CurAS = AS; |
| 2113 | SourceLocation ASLoc = Tok.getLocation(); |
| 2114 | ConsumeToken(); |
| 2115 | if (Tok.is(tok::colon)) |
| 2116 | Actions.ActOnAccessSpecifier(AS, ASLoc, Tok.getLocation()); |
| 2117 | else |
| 2118 | Diag(Tok, diag::err_expected_colon); |
| 2119 | ConsumeToken(); |
| 2120 | continue; |
| 2121 | } |
| 2122 | |
| 2123 | // FIXME: Make sure we don't have a template here. |
| 2124 | |
| 2125 | // Parse all the comma separated declarators. |
| 2126 | ParseCXXClassMemberDeclaration(CurAS); |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 2127 | } |
| 2128 | |
Douglas Gregor | 07976d2 | 2010-06-21 22:31:09 +0000 | [diff] [blame] | 2129 | RBraceLoc = MatchRHSPunctuation(tok::r_brace, LBraceLoc); |
| 2130 | } else { |
| 2131 | SkipUntil(tok::r_brace, false, false); |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 2132 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2133 | |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 2134 | // If attributes exist after class contents, parse them. |
John McCall | 0b7e678 | 2011-03-24 11:26:52 +0000 | [diff] [blame] | 2135 | ParsedAttributes attrs(AttrFactory); |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 2136 | MaybeParseGNUAttributes(attrs); |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 2137 | |
John McCall | 42a4f66 | 2010-05-28 08:11:17 +0000 | [diff] [blame] | 2138 | if (TagDecl) |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 2139 | Actions.ActOnFinishCXXMemberSpecification(getCurScope(), RecordLoc, TagDecl, |
John McCall | 42a4f66 | 2010-05-28 08:11:17 +0000 | [diff] [blame] | 2140 | LBraceLoc, RBraceLoc, |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 2141 | attrs.getList()); |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 2142 | |
Richard Smith | 7a614d8 | 2011-06-11 17:19:42 +0000 | [diff] [blame] | 2143 | // C++0x [class.mem]p2: Within the class member-specification, the class is |
| 2144 | // regarded as complete within function bodies, default arguments, exception- |
| 2145 | // specifications, and brace-or-equal-initializers for non-static data |
| 2146 | // members (including such things in nested classes). |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 2147 | // |
Richard Smith | 7a614d8 | 2011-06-11 17:19:42 +0000 | [diff] [blame] | 2148 | // FIXME: Only function bodies and brace-or-equal-initializers are currently |
| 2149 | // handled. Fix the others! |
Douglas Gregor | 07976d2 | 2010-06-21 22:31:09 +0000 | [diff] [blame] | 2150 | if (TagDecl && NonNestedClass) { |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 2151 | // 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] | 2152 | // are complete and we can parse the delayed portions of method |
| 2153 | // declarations and the lexed inline method definitions. |
Douglas Gregor | e0cc047 | 2010-06-16 23:45:56 +0000 | [diff] [blame] | 2154 | SourceLocation SavedPrevTokLocation = PrevTokLocation; |
Douglas Gregor | 6569d68 | 2009-05-27 23:11:45 +0000 | [diff] [blame] | 2155 | ParseLexedMethodDeclarations(getCurrentClass()); |
Richard Smith | 7a614d8 | 2011-06-11 17:19:42 +0000 | [diff] [blame] | 2156 | ParseLexedMemberInitializers(getCurrentClass()); |
Douglas Gregor | 6569d68 | 2009-05-27 23:11:45 +0000 | [diff] [blame] | 2157 | ParseLexedMethodDefs(getCurrentClass()); |
Douglas Gregor | e0cc047 | 2010-06-16 23:45:56 +0000 | [diff] [blame] | 2158 | PrevTokLocation = SavedPrevTokLocation; |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 2159 | } |
| 2160 | |
John McCall | 42a4f66 | 2010-05-28 08:11:17 +0000 | [diff] [blame] | 2161 | if (TagDecl) |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 2162 | Actions.ActOnTagFinishDefinition(getCurScope(), TagDecl, RBraceLoc); |
John McCall | db7bb4a | 2010-03-17 00:38:33 +0000 | [diff] [blame] | 2163 | |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 2164 | // Leave the class scope. |
Douglas Gregor | 6569d68 | 2009-05-27 23:11:45 +0000 | [diff] [blame] | 2165 | ParsingDef.Pop(); |
Douglas Gregor | 8935b8b | 2008-12-10 06:34:36 +0000 | [diff] [blame] | 2166 | ClassScope.Exit(); |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 2167 | } |
Douglas Gregor | 7ad8390 | 2008-11-05 04:29:56 +0000 | [diff] [blame] | 2168 | |
| 2169 | /// ParseConstructorInitializer - Parse a C++ constructor initializer, |
| 2170 | /// which explicitly initializes the members or base classes of a |
| 2171 | /// class (C++ [class.base.init]). For example, the three initializers |
| 2172 | /// after the ':' in the Derived constructor below: |
| 2173 | /// |
| 2174 | /// @code |
| 2175 | /// class Base { }; |
| 2176 | /// class Derived : Base { |
| 2177 | /// int x; |
| 2178 | /// float f; |
| 2179 | /// public: |
| 2180 | /// Derived(float f) : Base(), x(17), f(f) { } |
| 2181 | /// }; |
| 2182 | /// @endcode |
| 2183 | /// |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2184 | /// [C++] ctor-initializer: |
| 2185 | /// ':' mem-initializer-list |
Douglas Gregor | 7ad8390 | 2008-11-05 04:29:56 +0000 | [diff] [blame] | 2186 | /// |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2187 | /// [C++] mem-initializer-list: |
Douglas Gregor | 3fb9e4b | 2011-01-04 00:32:56 +0000 | [diff] [blame] | 2188 | /// mem-initializer ...[opt] |
| 2189 | /// mem-initializer ...[opt] , mem-initializer-list |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 2190 | void Parser::ParseConstructorInitializer(Decl *ConstructorDecl) { |
Douglas Gregor | 7ad8390 | 2008-11-05 04:29:56 +0000 | [diff] [blame] | 2191 | assert(Tok.is(tok::colon) && "Constructor initializer always starts with ':'"); |
| 2192 | |
John Wiegley | 28bbe4b | 2011-04-28 01:08:34 +0000 | [diff] [blame] | 2193 | // Poison the SEH identifiers so they are flagged as illegal in constructor initializers |
| 2194 | PoisonSEHIdentifiersRAIIObject PoisonSEHIdentifiers(*this, true); |
Douglas Gregor | 7ad8390 | 2008-11-05 04:29:56 +0000 | [diff] [blame] | 2195 | SourceLocation ColonLoc = ConsumeToken(); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2196 | |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 2197 | SmallVector<CXXCtorInitializer*, 4> MemInitializers; |
Douglas Gregor | 9db7dbb | 2010-01-31 09:12:51 +0000 | [diff] [blame] | 2198 | bool AnyErrors = false; |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 2199 | |
Douglas Gregor | 7ad8390 | 2008-11-05 04:29:56 +0000 | [diff] [blame] | 2200 | do { |
Douglas Gregor | 0133f52 | 2010-08-28 00:00:50 +0000 | [diff] [blame] | 2201 | if (Tok.is(tok::code_completion)) { |
| 2202 | Actions.CodeCompleteConstructorInitializer(ConstructorDecl, |
| 2203 | MemInitializers.data(), |
| 2204 | MemInitializers.size()); |
| 2205 | ConsumeCodeCompletionToken(); |
| 2206 | } else { |
| 2207 | MemInitResult MemInit = ParseMemInitializer(ConstructorDecl); |
| 2208 | if (!MemInit.isInvalid()) |
| 2209 | MemInitializers.push_back(MemInit.get()); |
| 2210 | else |
| 2211 | AnyErrors = true; |
| 2212 | } |
| 2213 | |
Douglas Gregor | 7ad8390 | 2008-11-05 04:29:56 +0000 | [diff] [blame] | 2214 | if (Tok.is(tok::comma)) |
| 2215 | ConsumeToken(); |
| 2216 | else if (Tok.is(tok::l_brace)) |
| 2217 | break; |
Douglas Gregor | b1f6fa4 | 2010-09-07 14:35:10 +0000 | [diff] [blame] | 2218 | // If the next token looks like a base or member initializer, assume that |
| 2219 | // we're just missing a comma. |
Douglas Gregor | 751f692 | 2010-09-07 14:51:08 +0000 | [diff] [blame] | 2220 | else if (Tok.is(tok::identifier) || Tok.is(tok::coloncolon)) { |
| 2221 | SourceLocation Loc = PP.getLocForEndOfToken(PrevTokLocation); |
| 2222 | Diag(Loc, diag::err_ctor_init_missing_comma) |
| 2223 | << FixItHint::CreateInsertion(Loc, ", "); |
| 2224 | } else { |
Douglas Gregor | 7ad8390 | 2008-11-05 04:29:56 +0000 | [diff] [blame] | 2225 | // Skip over garbage, until we get to '{'. Don't eat the '{'. |
Sebastian Redl | d3a413d | 2009-04-26 20:35:05 +0000 | [diff] [blame] | 2226 | Diag(Tok.getLocation(), diag::err_expected_lbrace_or_comma); |
Douglas Gregor | 7ad8390 | 2008-11-05 04:29:56 +0000 | [diff] [blame] | 2227 | SkipUntil(tok::l_brace, true, true); |
| 2228 | break; |
| 2229 | } |
| 2230 | } while (true); |
| 2231 | |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2232 | Actions.ActOnMemInitializers(ConstructorDecl, ColonLoc, |
Douglas Gregor | 9db7dbb | 2010-01-31 09:12:51 +0000 | [diff] [blame] | 2233 | MemInitializers.data(), MemInitializers.size(), |
| 2234 | AnyErrors); |
Douglas Gregor | 7ad8390 | 2008-11-05 04:29:56 +0000 | [diff] [blame] | 2235 | } |
| 2236 | |
| 2237 | /// ParseMemInitializer - Parse a C++ member initializer, which is |
| 2238 | /// part of a constructor initializer that explicitly initializes one |
| 2239 | /// member or base class (C++ [class.base.init]). See |
| 2240 | /// ParseConstructorInitializer for an example. |
| 2241 | /// |
| 2242 | /// [C++] mem-initializer: |
| 2243 | /// mem-initializer-id '(' expression-list[opt] ')' |
Sebastian Redl | dbef1bb | 2011-06-05 12:23:16 +0000 | [diff] [blame] | 2244 | /// [C++0x] mem-initializer-id braced-init-list |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2245 | /// |
Douglas Gregor | 7ad8390 | 2008-11-05 04:29:56 +0000 | [diff] [blame] | 2246 | /// [C++] mem-initializer-id: |
| 2247 | /// '::'[opt] nested-name-specifier[opt] class-name |
| 2248 | /// identifier |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 2249 | Parser::MemInitResult Parser::ParseMemInitializer(Decl *ConstructorDecl) { |
Fariborz Jahanian | bcfad54 | 2009-06-30 23:26:25 +0000 | [diff] [blame] | 2250 | // parse '::'[opt] nested-name-specifier[opt] |
| 2251 | CXXScopeSpec SS; |
John McCall | b3d8748 | 2010-08-24 05:47:05 +0000 | [diff] [blame] | 2252 | ParseOptionalCXXScopeSpecifier(SS, ParsedType(), false); |
| 2253 | ParsedType TemplateTypeTy; |
Fariborz Jahanian | 9617433 | 2009-07-01 19:21:19 +0000 | [diff] [blame] | 2254 | if (Tok.is(tok::annot_template_id)) { |
Argyrios Kyrtzidis | 25a7676 | 2011-06-22 06:09:49 +0000 | [diff] [blame] | 2255 | TemplateIdAnnotation *TemplateId = takeTemplateIdAnnotation(Tok); |
Douglas Gregor | d9b600c | 2010-01-12 17:52:59 +0000 | [diff] [blame] | 2256 | if (TemplateId->Kind == TNK_Type_template || |
| 2257 | TemplateId->Kind == TNK_Dependent_template_name) { |
Douglas Gregor | 059101f | 2011-03-02 00:47:37 +0000 | [diff] [blame] | 2258 | AnnotateTemplateIdTokenAsType(); |
Fariborz Jahanian | 9617433 | 2009-07-01 19:21:19 +0000 | [diff] [blame] | 2259 | assert(Tok.is(tok::annot_typename) && "template-id -> type failed"); |
John McCall | b3d8748 | 2010-08-24 05:47:05 +0000 | [diff] [blame] | 2260 | TemplateTypeTy = getTypeAnnotation(Tok); |
Fariborz Jahanian | 9617433 | 2009-07-01 19:21:19 +0000 | [diff] [blame] | 2261 | } |
Fariborz Jahanian | 9617433 | 2009-07-01 19:21:19 +0000 | [diff] [blame] | 2262 | } |
| 2263 | if (!TemplateTypeTy && Tok.isNot(tok::identifier)) { |
Chris Lattner | 1ab3b96 | 2008-11-18 07:48:38 +0000 | [diff] [blame] | 2264 | Diag(Tok, diag::err_expected_member_or_base_name); |
Douglas Gregor | 7ad8390 | 2008-11-05 04:29:56 +0000 | [diff] [blame] | 2265 | return true; |
| 2266 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2267 | |
Douglas Gregor | 7ad8390 | 2008-11-05 04:29:56 +0000 | [diff] [blame] | 2268 | // Get the identifier. This may be a member name or a class name, |
| 2269 | // but we'll let the semantic analysis determine which it is. |
Fariborz Jahanian | 9617433 | 2009-07-01 19:21:19 +0000 | [diff] [blame] | 2270 | IdentifierInfo *II = Tok.is(tok::identifier) ? Tok.getIdentifierInfo() : 0; |
Douglas Gregor | 7ad8390 | 2008-11-05 04:29:56 +0000 | [diff] [blame] | 2271 | SourceLocation IdLoc = ConsumeToken(); |
| 2272 | |
| 2273 | // Parse the '('. |
Sebastian Redl | dbef1bb | 2011-06-05 12:23:16 +0000 | [diff] [blame] | 2274 | if (getLang().CPlusPlus0x && Tok.is(tok::l_brace)) { |
| 2275 | // FIXME: Do something with the braced-init-list. |
| 2276 | ParseBraceInitializer(); |
Douglas Gregor | 7ad8390 | 2008-11-05 04:29:56 +0000 | [diff] [blame] | 2277 | return true; |
Sebastian Redl | dbef1bb | 2011-06-05 12:23:16 +0000 | [diff] [blame] | 2278 | } else if(Tok.is(tok::l_paren)) { |
| 2279 | SourceLocation LParenLoc = ConsumeParen(); |
Douglas Gregor | 7ad8390 | 2008-11-05 04:29:56 +0000 | [diff] [blame] | 2280 | |
Sebastian Redl | dbef1bb | 2011-06-05 12:23:16 +0000 | [diff] [blame] | 2281 | // Parse the optional expression-list. |
| 2282 | ExprVector ArgExprs(Actions); |
| 2283 | CommaLocsTy CommaLocs; |
| 2284 | if (Tok.isNot(tok::r_paren) && ParseExpressionList(ArgExprs, CommaLocs)) { |
| 2285 | SkipUntil(tok::r_paren); |
| 2286 | return true; |
| 2287 | } |
| 2288 | |
| 2289 | SourceLocation RParenLoc = MatchRHSPunctuation(tok::r_paren, LParenLoc); |
| 2290 | |
| 2291 | SourceLocation EllipsisLoc; |
| 2292 | if (Tok.is(tok::ellipsis)) |
| 2293 | EllipsisLoc = ConsumeToken(); |
| 2294 | |
| 2295 | return Actions.ActOnMemInitializer(ConstructorDecl, getCurScope(), SS, II, |
| 2296 | TemplateTypeTy, IdLoc, |
| 2297 | LParenLoc, ArgExprs.take(), |
| 2298 | ArgExprs.size(), RParenLoc, |
| 2299 | EllipsisLoc); |
Douglas Gregor | 7ad8390 | 2008-11-05 04:29:56 +0000 | [diff] [blame] | 2300 | } |
| 2301 | |
Sebastian Redl | dbef1bb | 2011-06-05 12:23:16 +0000 | [diff] [blame] | 2302 | Diag(Tok, getLang().CPlusPlus0x ? diag::err_expected_lparen_or_lbrace |
| 2303 | : diag::err_expected_lparen); |
| 2304 | return true; |
Douglas Gregor | 7ad8390 | 2008-11-05 04:29:56 +0000 | [diff] [blame] | 2305 | } |
Douglas Gregor | 0fe7bea | 2008-11-25 03:22:00 +0000 | [diff] [blame] | 2306 | |
Sebastian Redl | 7acafd0 | 2011-03-05 14:45:16 +0000 | [diff] [blame] | 2307 | /// \brief Parse a C++ exception-specification if present (C++0x [except.spec]). |
Douglas Gregor | 0fe7bea | 2008-11-25 03:22:00 +0000 | [diff] [blame] | 2308 | /// |
Douglas Gregor | a474561 | 2008-12-01 18:00:20 +0000 | [diff] [blame] | 2309 | /// exception-specification: |
Sebastian Redl | 7acafd0 | 2011-03-05 14:45:16 +0000 | [diff] [blame] | 2310 | /// dynamic-exception-specification |
| 2311 | /// noexcept-specification |
| 2312 | /// |
| 2313 | /// noexcept-specification: |
| 2314 | /// 'noexcept' |
| 2315 | /// 'noexcept' '(' constant-expression ')' |
| 2316 | ExceptionSpecificationType |
| 2317 | Parser::MaybeParseExceptionSpecification(SourceRange &SpecificationRange, |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 2318 | SmallVectorImpl<ParsedType> &DynamicExceptions, |
| 2319 | SmallVectorImpl<SourceRange> &DynamicExceptionRanges, |
Sebastian Redl | 7acafd0 | 2011-03-05 14:45:16 +0000 | [diff] [blame] | 2320 | ExprResult &NoexceptExpr) { |
| 2321 | ExceptionSpecificationType Result = EST_None; |
| 2322 | |
| 2323 | // See if there's a dynamic specification. |
| 2324 | if (Tok.is(tok::kw_throw)) { |
| 2325 | Result = ParseDynamicExceptionSpecification(SpecificationRange, |
| 2326 | DynamicExceptions, |
| 2327 | DynamicExceptionRanges); |
| 2328 | assert(DynamicExceptions.size() == DynamicExceptionRanges.size() && |
| 2329 | "Produced different number of exception types and ranges."); |
| 2330 | } |
| 2331 | |
| 2332 | // If there's no noexcept specification, we're done. |
| 2333 | if (Tok.isNot(tok::kw_noexcept)) |
| 2334 | return Result; |
| 2335 | |
| 2336 | // If we already had a dynamic specification, parse the noexcept for, |
| 2337 | // recovery, but emit a diagnostic and don't store the results. |
| 2338 | SourceRange NoexceptRange; |
| 2339 | ExceptionSpecificationType NoexceptType = EST_None; |
| 2340 | |
| 2341 | SourceLocation KeywordLoc = ConsumeToken(); |
| 2342 | if (Tok.is(tok::l_paren)) { |
| 2343 | // There is an argument. |
| 2344 | SourceLocation LParenLoc = ConsumeParen(); |
| 2345 | NoexceptType = EST_ComputedNoexcept; |
| 2346 | NoexceptExpr = ParseConstantExpression(); |
Sebastian Redl | 60618fa | 2011-03-12 11:50:43 +0000 | [diff] [blame] | 2347 | // The argument must be contextually convertible to bool. We use |
| 2348 | // ActOnBooleanCondition for this purpose. |
| 2349 | if (!NoexceptExpr.isInvalid()) |
| 2350 | NoexceptExpr = Actions.ActOnBooleanCondition(getCurScope(), KeywordLoc, |
| 2351 | NoexceptExpr.get()); |
Sebastian Redl | 7acafd0 | 2011-03-05 14:45:16 +0000 | [diff] [blame] | 2352 | SourceLocation RParenLoc = MatchRHSPunctuation(tok::r_paren, LParenLoc); |
| 2353 | NoexceptRange = SourceRange(KeywordLoc, RParenLoc); |
| 2354 | } else { |
| 2355 | // There is no argument. |
| 2356 | NoexceptType = EST_BasicNoexcept; |
| 2357 | NoexceptRange = SourceRange(KeywordLoc, KeywordLoc); |
| 2358 | } |
| 2359 | |
| 2360 | if (Result == EST_None) { |
| 2361 | SpecificationRange = NoexceptRange; |
| 2362 | Result = NoexceptType; |
| 2363 | |
| 2364 | // If there's a dynamic specification after a noexcept specification, |
| 2365 | // parse that and ignore the results. |
| 2366 | if (Tok.is(tok::kw_throw)) { |
| 2367 | Diag(Tok.getLocation(), diag::err_dynamic_and_noexcept_specification); |
| 2368 | ParseDynamicExceptionSpecification(NoexceptRange, DynamicExceptions, |
| 2369 | DynamicExceptionRanges); |
| 2370 | } |
| 2371 | } else { |
| 2372 | Diag(Tok.getLocation(), diag::err_dynamic_and_noexcept_specification); |
| 2373 | } |
| 2374 | |
| 2375 | return Result; |
| 2376 | } |
| 2377 | |
| 2378 | /// ParseDynamicExceptionSpecification - Parse a C++ |
| 2379 | /// dynamic-exception-specification (C++ [except.spec]). |
| 2380 | /// |
| 2381 | /// dynamic-exception-specification: |
Douglas Gregor | a474561 | 2008-12-01 18:00:20 +0000 | [diff] [blame] | 2382 | /// 'throw' '(' type-id-list [opt] ')' |
| 2383 | /// [MS] 'throw' '(' '...' ')' |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2384 | /// |
Douglas Gregor | a474561 | 2008-12-01 18:00:20 +0000 | [diff] [blame] | 2385 | /// type-id-list: |
Douglas Gregor | a04426c | 2010-12-20 23:57:46 +0000 | [diff] [blame] | 2386 | /// type-id ... [opt] |
| 2387 | /// type-id-list ',' type-id ... [opt] |
Douglas Gregor | 0fe7bea | 2008-11-25 03:22:00 +0000 | [diff] [blame] | 2388 | /// |
Sebastian Redl | 7acafd0 | 2011-03-05 14:45:16 +0000 | [diff] [blame] | 2389 | ExceptionSpecificationType Parser::ParseDynamicExceptionSpecification( |
| 2390 | SourceRange &SpecificationRange, |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 2391 | SmallVectorImpl<ParsedType> &Exceptions, |
| 2392 | SmallVectorImpl<SourceRange> &Ranges) { |
Douglas Gregor | 0fe7bea | 2008-11-25 03:22:00 +0000 | [diff] [blame] | 2393 | assert(Tok.is(tok::kw_throw) && "expected throw"); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2394 | |
Sebastian Redl | 7acafd0 | 2011-03-05 14:45:16 +0000 | [diff] [blame] | 2395 | SpecificationRange.setBegin(ConsumeToken()); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2396 | |
Douglas Gregor | 0fe7bea | 2008-11-25 03:22:00 +0000 | [diff] [blame] | 2397 | if (!Tok.is(tok::l_paren)) { |
Sebastian Redl | 7acafd0 | 2011-03-05 14:45:16 +0000 | [diff] [blame] | 2398 | Diag(Tok, diag::err_expected_lparen_after) << "throw"; |
| 2399 | SpecificationRange.setEnd(SpecificationRange.getBegin()); |
Sebastian Redl | 60618fa | 2011-03-12 11:50:43 +0000 | [diff] [blame] | 2400 | return EST_DynamicNone; |
Douglas Gregor | 0fe7bea | 2008-11-25 03:22:00 +0000 | [diff] [blame] | 2401 | } |
| 2402 | SourceLocation LParenLoc = ConsumeParen(); |
| 2403 | |
Douglas Gregor | a474561 | 2008-12-01 18:00:20 +0000 | [diff] [blame] | 2404 | // Parse throw(...), a Microsoft extension that means "this function |
| 2405 | // can throw anything". |
| 2406 | if (Tok.is(tok::ellipsis)) { |
| 2407 | SourceLocation EllipsisLoc = ConsumeToken(); |
| 2408 | if (!getLang().Microsoft) |
| 2409 | Diag(EllipsisLoc, diag::ext_ellipsis_exception_spec); |
Sebastian Redl | 7acafd0 | 2011-03-05 14:45:16 +0000 | [diff] [blame] | 2410 | SourceLocation RParenLoc = MatchRHSPunctuation(tok::r_paren, LParenLoc); |
| 2411 | SpecificationRange.setEnd(RParenLoc); |
Sebastian Redl | 60618fa | 2011-03-12 11:50:43 +0000 | [diff] [blame] | 2412 | return EST_MSAny; |
Douglas Gregor | a474561 | 2008-12-01 18:00:20 +0000 | [diff] [blame] | 2413 | } |
| 2414 | |
Douglas Gregor | 0fe7bea | 2008-11-25 03:22:00 +0000 | [diff] [blame] | 2415 | // Parse the sequence of type-ids. |
Sebastian Redl | ef65f06 | 2009-05-29 18:02:33 +0000 | [diff] [blame] | 2416 | SourceRange Range; |
Douglas Gregor | 0fe7bea | 2008-11-25 03:22:00 +0000 | [diff] [blame] | 2417 | while (Tok.isNot(tok::r_paren)) { |
Sebastian Redl | ef65f06 | 2009-05-29 18:02:33 +0000 | [diff] [blame] | 2418 | TypeResult Res(ParseTypeName(&Range)); |
Sebastian Redl | 7acafd0 | 2011-03-05 14:45:16 +0000 | [diff] [blame] | 2419 | |
Douglas Gregor | a04426c | 2010-12-20 23:57:46 +0000 | [diff] [blame] | 2420 | if (Tok.is(tok::ellipsis)) { |
| 2421 | // C++0x [temp.variadic]p5: |
| 2422 | // - In a dynamic-exception-specification (15.4); the pattern is a |
| 2423 | // type-id. |
| 2424 | SourceLocation Ellipsis = ConsumeToken(); |
Sebastian Redl | 7acafd0 | 2011-03-05 14:45:16 +0000 | [diff] [blame] | 2425 | Range.setEnd(Ellipsis); |
Douglas Gregor | a04426c | 2010-12-20 23:57:46 +0000 | [diff] [blame] | 2426 | if (!Res.isInvalid()) |
| 2427 | Res = Actions.ActOnPackExpansion(Res.get(), Ellipsis); |
| 2428 | } |
Sebastian Redl | 7acafd0 | 2011-03-05 14:45:16 +0000 | [diff] [blame] | 2429 | |
Sebastian Redl | ef65f06 | 2009-05-29 18:02:33 +0000 | [diff] [blame] | 2430 | if (!Res.isInvalid()) { |
Sebastian Redl | 7dc8134 | 2009-04-29 17:30:04 +0000 | [diff] [blame] | 2431 | Exceptions.push_back(Res.get()); |
Sebastian Redl | ef65f06 | 2009-05-29 18:02:33 +0000 | [diff] [blame] | 2432 | Ranges.push_back(Range); |
| 2433 | } |
Douglas Gregor | a04426c | 2010-12-20 23:57:46 +0000 | [diff] [blame] | 2434 | |
Douglas Gregor | 0fe7bea | 2008-11-25 03:22:00 +0000 | [diff] [blame] | 2435 | if (Tok.is(tok::comma)) |
| 2436 | ConsumeToken(); |
Sebastian Redl | 7dc8134 | 2009-04-29 17:30:04 +0000 | [diff] [blame] | 2437 | else |
Douglas Gregor | 0fe7bea | 2008-11-25 03:22:00 +0000 | [diff] [blame] | 2438 | break; |
| 2439 | } |
| 2440 | |
Sebastian Redl | 7acafd0 | 2011-03-05 14:45:16 +0000 | [diff] [blame] | 2441 | SpecificationRange.setEnd(MatchRHSPunctuation(tok::r_paren, LParenLoc)); |
Sebastian Redl | 60618fa | 2011-03-12 11:50:43 +0000 | [diff] [blame] | 2442 | return Exceptions.empty() ? EST_DynamicNone : EST_Dynamic; |
Douglas Gregor | 0fe7bea | 2008-11-25 03:22:00 +0000 | [diff] [blame] | 2443 | } |
Douglas Gregor | 6569d68 | 2009-05-27 23:11:45 +0000 | [diff] [blame] | 2444 | |
Douglas Gregor | dab60ad | 2010-10-01 18:44:50 +0000 | [diff] [blame] | 2445 | /// ParseTrailingReturnType - Parse a trailing return type on a new-style |
| 2446 | /// function declaration. |
Douglas Gregor | ae7902c | 2011-08-04 15:30:47 +0000 | [diff] [blame] | 2447 | TypeResult Parser::ParseTrailingReturnType(SourceRange &Range) { |
Douglas Gregor | dab60ad | 2010-10-01 18:44:50 +0000 | [diff] [blame] | 2448 | assert(Tok.is(tok::arrow) && "expected arrow"); |
| 2449 | |
| 2450 | ConsumeToken(); |
| 2451 | |
| 2452 | // FIXME: Need to suppress declarations when parsing this typename. |
| 2453 | // Otherwise in this function definition: |
| 2454 | // |
| 2455 | // auto f() -> struct X {} |
| 2456 | // |
| 2457 | // struct X is parsed as class definition because of the trailing |
| 2458 | // brace. |
Douglas Gregor | dab60ad | 2010-10-01 18:44:50 +0000 | [diff] [blame] | 2459 | return ParseTypeName(&Range); |
| 2460 | } |
| 2461 | |
Douglas Gregor | 6569d68 | 2009-05-27 23:11:45 +0000 | [diff] [blame] | 2462 | /// \brief We have just started parsing the definition of a new class, |
| 2463 | /// so push that class onto our stack of classes that is currently |
| 2464 | /// being parsed. |
John McCall | eee1d54 | 2011-02-14 07:13:47 +0000 | [diff] [blame] | 2465 | Sema::ParsingClassState |
| 2466 | Parser::PushParsingClass(Decl *ClassDecl, bool NonNestedClass) { |
Douglas Gregor | 26997fd | 2010-01-16 20:52:59 +0000 | [diff] [blame] | 2467 | assert((NonNestedClass || !ClassStack.empty()) && |
Douglas Gregor | 6569d68 | 2009-05-27 23:11:45 +0000 | [diff] [blame] | 2468 | "Nested class without outer class"); |
Douglas Gregor | 26997fd | 2010-01-16 20:52:59 +0000 | [diff] [blame] | 2469 | ClassStack.push(new ParsingClass(ClassDecl, NonNestedClass)); |
John McCall | eee1d54 | 2011-02-14 07:13:47 +0000 | [diff] [blame] | 2470 | return Actions.PushParsingClass(); |
Douglas Gregor | 6569d68 | 2009-05-27 23:11:45 +0000 | [diff] [blame] | 2471 | } |
| 2472 | |
| 2473 | /// \brief Deallocate the given parsed class and all of its nested |
| 2474 | /// classes. |
| 2475 | void Parser::DeallocateParsedClasses(Parser::ParsingClass *Class) { |
Douglas Gregor | d54eb44 | 2010-10-12 16:25:54 +0000 | [diff] [blame] | 2476 | for (unsigned I = 0, N = Class->LateParsedDeclarations.size(); I != N; ++I) |
| 2477 | delete Class->LateParsedDeclarations[I]; |
Douglas Gregor | 6569d68 | 2009-05-27 23:11:45 +0000 | [diff] [blame] | 2478 | delete Class; |
| 2479 | } |
| 2480 | |
| 2481 | /// \brief Pop the top class of the stack of classes that are |
| 2482 | /// currently being parsed. |
| 2483 | /// |
| 2484 | /// This routine should be called when we have finished parsing the |
| 2485 | /// definition of a class, but have not yet popped the Scope |
| 2486 | /// associated with the class's definition. |
| 2487 | /// |
| 2488 | /// \returns true if the class we've popped is a top-level class, |
| 2489 | /// false otherwise. |
John McCall | eee1d54 | 2011-02-14 07:13:47 +0000 | [diff] [blame] | 2490 | void Parser::PopParsingClass(Sema::ParsingClassState state) { |
Douglas Gregor | 6569d68 | 2009-05-27 23:11:45 +0000 | [diff] [blame] | 2491 | assert(!ClassStack.empty() && "Mismatched push/pop for class parsing"); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2492 | |
John McCall | eee1d54 | 2011-02-14 07:13:47 +0000 | [diff] [blame] | 2493 | Actions.PopParsingClass(state); |
| 2494 | |
Douglas Gregor | 6569d68 | 2009-05-27 23:11:45 +0000 | [diff] [blame] | 2495 | ParsingClass *Victim = ClassStack.top(); |
| 2496 | ClassStack.pop(); |
| 2497 | if (Victim->TopLevelClass) { |
| 2498 | // Deallocate all of the nested classes of this class, |
| 2499 | // recursively: we don't need to keep any of this information. |
| 2500 | DeallocateParsedClasses(Victim); |
| 2501 | return; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2502 | } |
Douglas Gregor | 6569d68 | 2009-05-27 23:11:45 +0000 | [diff] [blame] | 2503 | assert(!ClassStack.empty() && "Missing top-level class?"); |
| 2504 | |
Douglas Gregor | d54eb44 | 2010-10-12 16:25:54 +0000 | [diff] [blame] | 2505 | if (Victim->LateParsedDeclarations.empty()) { |
Douglas Gregor | 6569d68 | 2009-05-27 23:11:45 +0000 | [diff] [blame] | 2506 | // The victim is a nested class, but we will not need to perform |
| 2507 | // any processing after the definition of this class since it has |
| 2508 | // no members whose handling was delayed. Therefore, we can just |
| 2509 | // remove this nested class. |
Douglas Gregor | d54eb44 | 2010-10-12 16:25:54 +0000 | [diff] [blame] | 2510 | DeallocateParsedClasses(Victim); |
Douglas Gregor | 6569d68 | 2009-05-27 23:11:45 +0000 | [diff] [blame] | 2511 | return; |
| 2512 | } |
| 2513 | |
| 2514 | // This nested class has some members that will need to be processed |
| 2515 | // after the top-level class is completely defined. Therefore, add |
| 2516 | // it to the list of nested classes within its parent. |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 2517 | assert(getCurScope()->isClassScope() && "Nested class outside of class scope?"); |
Douglas Gregor | d54eb44 | 2010-10-12 16:25:54 +0000 | [diff] [blame] | 2518 | ClassStack.top()->LateParsedDeclarations.push_back(new LateParsedClass(this, Victim)); |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 2519 | Victim->TemplateScope = getCurScope()->getParent()->isTemplateParamScope(); |
Douglas Gregor | 6569d68 | 2009-05-27 23:11:45 +0000 | [diff] [blame] | 2520 | } |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 2521 | |
| 2522 | /// ParseCXX0XAttributes - Parse a C++0x attribute-specifier. Currently only |
| 2523 | /// parses standard attributes. |
| 2524 | /// |
| 2525 | /// [C++0x] attribute-specifier: |
| 2526 | /// '[' '[' attribute-list ']' ']' |
| 2527 | /// |
| 2528 | /// [C++0x] attribute-list: |
| 2529 | /// attribute[opt] |
| 2530 | /// attribute-list ',' attribute[opt] |
| 2531 | /// |
| 2532 | /// [C++0x] attribute: |
| 2533 | /// attribute-token attribute-argument-clause[opt] |
| 2534 | /// |
| 2535 | /// [C++0x] attribute-token: |
| 2536 | /// identifier |
| 2537 | /// attribute-scoped-token |
| 2538 | /// |
| 2539 | /// [C++0x] attribute-scoped-token: |
| 2540 | /// attribute-namespace '::' identifier |
| 2541 | /// |
| 2542 | /// [C++0x] attribute-namespace: |
| 2543 | /// identifier |
| 2544 | /// |
| 2545 | /// [C++0x] attribute-argument-clause: |
| 2546 | /// '(' balanced-token-seq ')' |
| 2547 | /// |
| 2548 | /// [C++0x] balanced-token-seq: |
| 2549 | /// balanced-token |
| 2550 | /// balanced-token-seq balanced-token |
| 2551 | /// |
| 2552 | /// [C++0x] balanced-token: |
| 2553 | /// '(' balanced-token-seq ')' |
| 2554 | /// '[' balanced-token-seq ']' |
| 2555 | /// '{' balanced-token-seq '}' |
| 2556 | /// any token but '(', ')', '[', ']', '{', or '}' |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 2557 | void Parser::ParseCXX0XAttributes(ParsedAttributesWithRange &attrs, |
| 2558 | SourceLocation *endLoc) { |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 2559 | assert(Tok.is(tok::l_square) && NextToken().is(tok::l_square) |
| 2560 | && "Not a C++0x attribute list"); |
| 2561 | |
| 2562 | SourceLocation StartLoc = Tok.getLocation(), Loc; |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 2563 | |
| 2564 | ConsumeBracket(); |
| 2565 | ConsumeBracket(); |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 2566 | |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 2567 | if (Tok.is(tok::comma)) { |
| 2568 | Diag(Tok.getLocation(), diag::err_expected_ident); |
| 2569 | ConsumeToken(); |
| 2570 | } |
| 2571 | |
| 2572 | while (Tok.is(tok::identifier) || Tok.is(tok::comma)) { |
| 2573 | // attribute not present |
| 2574 | if (Tok.is(tok::comma)) { |
| 2575 | ConsumeToken(); |
| 2576 | continue; |
| 2577 | } |
| 2578 | |
| 2579 | IdentifierInfo *ScopeName = 0, *AttrName = Tok.getIdentifierInfo(); |
| 2580 | SourceLocation ScopeLoc, AttrLoc = ConsumeToken(); |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 2581 | |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 2582 | // scoped attribute |
| 2583 | if (Tok.is(tok::coloncolon)) { |
| 2584 | ConsumeToken(); |
| 2585 | |
| 2586 | if (!Tok.is(tok::identifier)) { |
| 2587 | Diag(Tok.getLocation(), diag::err_expected_ident); |
| 2588 | SkipUntil(tok::r_square, tok::comma, true, true); |
| 2589 | continue; |
| 2590 | } |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 2591 | |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 2592 | ScopeName = AttrName; |
| 2593 | ScopeLoc = AttrLoc; |
| 2594 | |
| 2595 | AttrName = Tok.getIdentifierInfo(); |
| 2596 | AttrLoc = ConsumeToken(); |
| 2597 | } |
| 2598 | |
| 2599 | bool AttrParsed = false; |
| 2600 | // No scoped names are supported; ideally we could put all non-standard |
| 2601 | // attributes into namespaces. |
| 2602 | if (!ScopeName) { |
| 2603 | switch(AttributeList::getKind(AttrName)) |
| 2604 | { |
| 2605 | // No arguments |
Sean Hunt | 7725e67 | 2009-11-25 04:20:27 +0000 | [diff] [blame] | 2606 | case AttributeList::AT_carries_dependency: |
Anders Carlsson | 15e14a2 | 2011-01-23 21:33:18 +0000 | [diff] [blame] | 2607 | case AttributeList::AT_noreturn: { |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 2608 | if (Tok.is(tok::l_paren)) { |
| 2609 | Diag(Tok.getLocation(), diag::err_cxx0x_attribute_forbids_arguments) |
| 2610 | << AttrName->getName(); |
| 2611 | break; |
| 2612 | } |
| 2613 | |
John McCall | 0b7e678 | 2011-03-24 11:26:52 +0000 | [diff] [blame] | 2614 | attrs.addNew(AttrName, AttrLoc, 0, AttrLoc, 0, |
| 2615 | SourceLocation(), 0, 0, false, true); |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 2616 | AttrParsed = true; |
| 2617 | break; |
| 2618 | } |
| 2619 | |
| 2620 | // One argument; must be a type-id or assignment-expression |
| 2621 | case AttributeList::AT_aligned: { |
| 2622 | if (Tok.isNot(tok::l_paren)) { |
| 2623 | Diag(Tok.getLocation(), diag::err_cxx0x_attribute_requires_arguments) |
| 2624 | << AttrName->getName(); |
| 2625 | break; |
| 2626 | } |
| 2627 | SourceLocation ParamLoc = ConsumeParen(); |
| 2628 | |
John McCall | 60d7b3a | 2010-08-24 06:29:42 +0000 | [diff] [blame] | 2629 | ExprResult ArgExpr = ParseCXX0XAlignArgument(ParamLoc); |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 2630 | |
| 2631 | MatchRHSPunctuation(tok::r_paren, ParamLoc); |
| 2632 | |
| 2633 | ExprVector ArgExprs(Actions); |
| 2634 | ArgExprs.push_back(ArgExpr.release()); |
John McCall | 0b7e678 | 2011-03-24 11:26:52 +0000 | [diff] [blame] | 2635 | attrs.addNew(AttrName, AttrLoc, 0, AttrLoc, |
| 2636 | 0, ParamLoc, ArgExprs.take(), 1, |
| 2637 | false, true); |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 2638 | |
| 2639 | AttrParsed = true; |
| 2640 | break; |
| 2641 | } |
| 2642 | |
| 2643 | // Silence warnings |
| 2644 | default: break; |
| 2645 | } |
| 2646 | } |
| 2647 | |
| 2648 | // Skip the entire parameter clause, if any |
| 2649 | if (!AttrParsed && Tok.is(tok::l_paren)) { |
| 2650 | ConsumeParen(); |
| 2651 | // SkipUntil maintains the balancedness of tokens. |
| 2652 | SkipUntil(tok::r_paren, false); |
| 2653 | } |
| 2654 | } |
| 2655 | |
| 2656 | if (ExpectAndConsume(tok::r_square, diag::err_expected_rsquare)) |
| 2657 | SkipUntil(tok::r_square, false); |
| 2658 | Loc = Tok.getLocation(); |
| 2659 | if (ExpectAndConsume(tok::r_square, diag::err_expected_rsquare)) |
| 2660 | SkipUntil(tok::r_square, false); |
| 2661 | |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 2662 | attrs.Range = SourceRange(StartLoc, Loc); |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 2663 | } |
| 2664 | |
| 2665 | /// ParseCXX0XAlignArgument - Parse the argument to C++0x's [[align]] |
| 2666 | /// attribute. |
| 2667 | /// |
| 2668 | /// FIXME: Simply returns an alignof() expression if the argument is a |
| 2669 | /// type. Ideally, the type should be propagated directly into Sema. |
| 2670 | /// |
| 2671 | /// [C++0x] 'align' '(' type-id ')' |
| 2672 | /// [C++0x] 'align' '(' assignment-expression ')' |
John McCall | 60d7b3a | 2010-08-24 06:29:42 +0000 | [diff] [blame] | 2673 | ExprResult Parser::ParseCXX0XAlignArgument(SourceLocation Start) { |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 2674 | if (isTypeIdInParens()) { |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 2675 | EnterExpressionEvaluationContext Unevaluated(Actions, Sema::Unevaluated); |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 2676 | SourceLocation TypeLoc = Tok.getLocation(); |
John McCall | b3d8748 | 2010-08-24 05:47:05 +0000 | [diff] [blame] | 2677 | ParsedType Ty = ParseTypeName().get(); |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 2678 | SourceRange TypeRange(Start, Tok.getLocation()); |
Peter Collingbourne | f4e3cfb | 2011-03-11 19:24:49 +0000 | [diff] [blame] | 2679 | return Actions.ActOnUnaryExprOrTypeTraitExpr(TypeLoc, UETT_AlignOf, true, |
| 2680 | Ty.getAsOpaquePtr(), TypeRange); |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 2681 | } else |
| 2682 | return ParseConstantExpression(); |
| 2683 | } |
Francois Pichet | 334d47e | 2010-10-11 12:59:39 +0000 | [diff] [blame] | 2684 | |
| 2685 | /// ParseMicrosoftAttributes - Parse a Microsoft attribute [Attr] |
| 2686 | /// |
| 2687 | /// [MS] ms-attribute: |
| 2688 | /// '[' token-seq ']' |
| 2689 | /// |
| 2690 | /// [MS] ms-attribute-seq: |
| 2691 | /// ms-attribute[opt] |
| 2692 | /// ms-attribute ms-attribute-seq |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 2693 | void Parser::ParseMicrosoftAttributes(ParsedAttributes &attrs, |
| 2694 | SourceLocation *endLoc) { |
Francois Pichet | 334d47e | 2010-10-11 12:59:39 +0000 | [diff] [blame] | 2695 | assert(Tok.is(tok::l_square) && "Not a Microsoft attribute list"); |
| 2696 | |
| 2697 | while (Tok.is(tok::l_square)) { |
| 2698 | ConsumeBracket(); |
| 2699 | SkipUntil(tok::r_square, true, true); |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 2700 | if (endLoc) *endLoc = Tok.getLocation(); |
Francois Pichet | 334d47e | 2010-10-11 12:59:39 +0000 | [diff] [blame] | 2701 | ExpectAndConsume(tok::r_square, diag::err_expected_rsquare); |
| 2702 | } |
| 2703 | } |
Francois Pichet | 563a645 | 2011-05-25 10:19:49 +0000 | [diff] [blame] | 2704 | |
| 2705 | void Parser::ParseMicrosoftIfExistsClassDeclaration(DeclSpec::TST TagType, |
| 2706 | AccessSpecifier& CurAS) { |
| 2707 | bool Result; |
| 2708 | if (ParseMicrosoftIfExistsCondition(Result)) |
| 2709 | return; |
| 2710 | |
| 2711 | if (Tok.isNot(tok::l_brace)) { |
| 2712 | Diag(Tok, diag::err_expected_lbrace); |
| 2713 | return; |
| 2714 | } |
| 2715 | ConsumeBrace(); |
| 2716 | |
| 2717 | // Condition is false skip all inside the {}. |
| 2718 | if (!Result) { |
| 2719 | SkipUntil(tok::r_brace, false); |
| 2720 | return; |
| 2721 | } |
| 2722 | |
| 2723 | // Condition is true, parse the declaration. |
| 2724 | while (Tok.isNot(tok::r_brace)) { |
| 2725 | |
| 2726 | // __if_exists, __if_not_exists can nest. |
| 2727 | if ((Tok.is(tok::kw___if_exists) || Tok.is(tok::kw___if_not_exists))) { |
| 2728 | ParseMicrosoftIfExistsClassDeclaration((DeclSpec::TST)TagType, CurAS); |
| 2729 | continue; |
| 2730 | } |
| 2731 | |
| 2732 | // Check for extraneous top-level semicolon. |
| 2733 | if (Tok.is(tok::semi)) { |
| 2734 | Diag(Tok, diag::ext_extra_struct_semi) |
| 2735 | << DeclSpec::getSpecifierName((DeclSpec::TST)TagType) |
| 2736 | << FixItHint::CreateRemoval(Tok.getLocation()); |
| 2737 | ConsumeToken(); |
| 2738 | continue; |
| 2739 | } |
| 2740 | |
| 2741 | AccessSpecifier AS = getAccessSpecifierIfPresent(); |
| 2742 | if (AS != AS_none) { |
| 2743 | // Current token is a C++ access specifier. |
| 2744 | CurAS = AS; |
| 2745 | SourceLocation ASLoc = Tok.getLocation(); |
| 2746 | ConsumeToken(); |
| 2747 | if (Tok.is(tok::colon)) |
| 2748 | Actions.ActOnAccessSpecifier(AS, ASLoc, Tok.getLocation()); |
| 2749 | else |
| 2750 | Diag(Tok, diag::err_expected_colon); |
| 2751 | ConsumeToken(); |
| 2752 | continue; |
| 2753 | } |
| 2754 | |
| 2755 | // Parse all the comma separated declarators. |
| 2756 | ParseCXXClassMemberDeclaration(CurAS); |
| 2757 | } |
| 2758 | |
| 2759 | if (Tok.isNot(tok::r_brace)) { |
| 2760 | Diag(Tok, diag::err_expected_rbrace); |
| 2761 | return; |
| 2762 | } |
| 2763 | ConsumeBrace(); |
| 2764 | } |