Chris Lattner | 8f08cb7 | 2007-08-25 06:57:03 +0000 | [diff] [blame] | 1 | //===--- ParseDeclCXX.cpp - C++ Declaration Parsing -----------------------===// |
| 2 | // |
| 3 | // The LLVM Compiler Infrastructure |
| 4 | // |
Chris Lattner | 0bc735f | 2007-12-29 19:59:25 +0000 | [diff] [blame] | 5 | // This file is distributed under the University of Illinois Open Source |
| 6 | // License. See LICENSE.TXT for details. |
Chris Lattner | 8f08cb7 | 2007-08-25 06:57:03 +0000 | [diff] [blame] | 7 | // |
| 8 | //===----------------------------------------------------------------------===// |
| 9 | // |
| 10 | // This file implements the C++ Declaration portions of the Parser interfaces. |
| 11 | // |
| 12 | //===----------------------------------------------------------------------===// |
| 13 | |
Anders Carlsson | 0c6139d | 2009-06-27 00:27:47 +0000 | [diff] [blame] | 14 | #include "clang/Basic/OperatorKinds.h" |
Douglas Gregor | 1b7f898 | 2008-04-14 00:13:42 +0000 | [diff] [blame] | 15 | #include "clang/Parse/Parser.h" |
Chris Lattner | 500d329 | 2009-01-29 05:15:15 +0000 | [diff] [blame] | 16 | #include "clang/Parse/ParseDiagnostic.h" |
John McCall | 1951085 | 2010-08-20 18:27:03 +0000 | [diff] [blame] | 17 | #include "clang/Sema/DeclSpec.h" |
| 18 | #include "clang/Sema/Scope.h" |
| 19 | #include "clang/Sema/ParsedTemplate.h" |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 20 | #include "clang/Sema/PrettyDeclStackTrace.h" |
Chris Lattner | d167ca0 | 2009-12-10 00:21:05 +0000 | [diff] [blame] | 21 | #include "RAIIObjectsForParser.h" |
Chris Lattner | 8f08cb7 | 2007-08-25 06:57:03 +0000 | [diff] [blame] | 22 | using namespace clang; |
| 23 | |
| 24 | /// ParseNamespace - We know that the current token is a namespace keyword. This |
Sebastian Redl | d078e64 | 2010-08-27 23:12:46 +0000 | [diff] [blame] | 25 | /// may either be a top level namespace or a block-level namespace alias. If |
| 26 | /// there was an inline keyword, it has already been parsed. |
Chris Lattner | 8f08cb7 | 2007-08-25 06:57:03 +0000 | [diff] [blame] | 27 | /// |
| 28 | /// namespace-definition: [C++ 7.3: basic.namespace] |
| 29 | /// named-namespace-definition |
| 30 | /// unnamed-namespace-definition |
| 31 | /// |
| 32 | /// unnamed-namespace-definition: |
Sebastian Redl | d078e64 | 2010-08-27 23:12:46 +0000 | [diff] [blame] | 33 | /// 'inline'[opt] 'namespace' attributes[opt] '{' namespace-body '}' |
Chris Lattner | 8f08cb7 | 2007-08-25 06:57:03 +0000 | [diff] [blame] | 34 | /// |
| 35 | /// named-namespace-definition: |
| 36 | /// original-namespace-definition |
| 37 | /// extension-namespace-definition |
| 38 | /// |
| 39 | /// original-namespace-definition: |
Sebastian Redl | d078e64 | 2010-08-27 23:12:46 +0000 | [diff] [blame] | 40 | /// 'inline'[opt] 'namespace' identifier attributes[opt] |
| 41 | /// '{' namespace-body '}' |
Chris Lattner | 8f08cb7 | 2007-08-25 06:57:03 +0000 | [diff] [blame] | 42 | /// |
| 43 | /// extension-namespace-definition: |
Sebastian Redl | d078e64 | 2010-08-27 23:12:46 +0000 | [diff] [blame] | 44 | /// 'inline'[opt] 'namespace' original-namespace-name |
| 45 | /// '{' namespace-body '}' |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 46 | /// |
Chris Lattner | 8f08cb7 | 2007-08-25 06:57:03 +0000 | [diff] [blame] | 47 | /// namespace-alias-definition: [C++ 7.3.2: namespace.alias] |
| 48 | /// 'namespace' identifier '=' qualified-namespace-specifier ';' |
| 49 | /// |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 50 | Decl *Parser::ParseNamespace(unsigned Context, |
Sebastian Redl | d078e64 | 2010-08-27 23:12:46 +0000 | [diff] [blame] | 51 | SourceLocation &DeclEnd, |
| 52 | SourceLocation InlineLoc) { |
Chris Lattner | 04d6666 | 2007-10-09 17:33:22 +0000 | [diff] [blame] | 53 | assert(Tok.is(tok::kw_namespace) && "Not a namespace!"); |
Chris Lattner | 8f08cb7 | 2007-08-25 06:57:03 +0000 | [diff] [blame] | 54 | SourceLocation NamespaceLoc = ConsumeToken(); // eat the 'namespace'. |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 55 | |
Douglas Gregor | 49f40bd | 2009-09-18 19:03:04 +0000 | [diff] [blame] | 56 | if (Tok.is(tok::code_completion)) { |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 57 | Actions.CodeCompleteNamespaceDecl(getCurScope()); |
Douglas Gregor | dc84534 | 2010-05-25 05:58:43 +0000 | [diff] [blame] | 58 | ConsumeCodeCompletionToken(); |
Douglas Gregor | 49f40bd | 2009-09-18 19:03:04 +0000 | [diff] [blame] | 59 | } |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 60 | |
Chris Lattner | 8f08cb7 | 2007-08-25 06:57:03 +0000 | [diff] [blame] | 61 | SourceLocation IdentLoc; |
| 62 | IdentifierInfo *Ident = 0; |
Richard Trieu | f858bd8 | 2011-05-26 20:11:09 +0000 | [diff] [blame] | 63 | std::vector<SourceLocation> ExtraIdentLoc; |
| 64 | std::vector<IdentifierInfo*> ExtraIdent; |
| 65 | std::vector<SourceLocation> ExtraNamespaceLoc; |
Douglas Gregor | 6a588dd | 2009-06-17 19:49:00 +0000 | [diff] [blame] | 66 | |
| 67 | Token attrTok; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 68 | |
Chris Lattner | 04d6666 | 2007-10-09 17:33:22 +0000 | [diff] [blame] | 69 | if (Tok.is(tok::identifier)) { |
Chris Lattner | 8f08cb7 | 2007-08-25 06:57:03 +0000 | [diff] [blame] | 70 | Ident = Tok.getIdentifierInfo(); |
| 71 | IdentLoc = ConsumeToken(); // eat the identifier. |
Richard Trieu | f858bd8 | 2011-05-26 20:11:09 +0000 | [diff] [blame] | 72 | while (Tok.is(tok::coloncolon) && NextToken().is(tok::identifier)) { |
| 73 | ExtraNamespaceLoc.push_back(ConsumeToken()); |
| 74 | ExtraIdent.push_back(Tok.getIdentifierInfo()); |
| 75 | ExtraIdentLoc.push_back(ConsumeToken()); |
| 76 | } |
Chris Lattner | 8f08cb7 | 2007-08-25 06:57:03 +0000 | [diff] [blame] | 77 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 78 | |
Chris Lattner | 8f08cb7 | 2007-08-25 06:57:03 +0000 | [diff] [blame] | 79 | // Read label attributes, if present. |
John McCall | 0b7e678 | 2011-03-24 11:26:52 +0000 | [diff] [blame] | 80 | ParsedAttributes attrs(AttrFactory); |
Douglas Gregor | 6a588dd | 2009-06-17 19:49:00 +0000 | [diff] [blame] | 81 | if (Tok.is(tok::kw___attribute)) { |
| 82 | attrTok = Tok; |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 83 | ParseGNUAttributes(attrs); |
Douglas Gregor | 6a588dd | 2009-06-17 19:49:00 +0000 | [diff] [blame] | 84 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 85 | |
Douglas Gregor | 6a588dd | 2009-06-17 19:49:00 +0000 | [diff] [blame] | 86 | if (Tok.is(tok::equal)) { |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 87 | if (!attrs.empty()) |
Douglas Gregor | 6a588dd | 2009-06-17 19:49:00 +0000 | [diff] [blame] | 88 | Diag(attrTok, diag::err_unexpected_namespace_attributes_alias); |
Sebastian Redl | d078e64 | 2010-08-27 23:12:46 +0000 | [diff] [blame] | 89 | if (InlineLoc.isValid()) |
| 90 | Diag(InlineLoc, diag::err_inline_namespace_alias) |
| 91 | << FixItHint::CreateRemoval(InlineLoc); |
Douglas Gregor | 6a588dd | 2009-06-17 19:49:00 +0000 | [diff] [blame] | 92 | |
Chris Lattner | 97144fc | 2009-04-02 04:16:50 +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; |
| 265 | llvm::StringRef Lang = PP.getSpelling(Tok, LangBuffer, &Invalid); |
| 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, |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 317 | ParsedAttributesWithRange &attrs) { |
Douglas Gregor | f780abc | 2008-12-30 03:27:21 +0000 | [diff] [blame] | 318 | assert(Tok.is(tok::kw_using) && "Not using token"); |
| 319 | |
| 320 | // Eat 'using'. |
| 321 | SourceLocation UsingLoc = ConsumeToken(); |
| 322 | |
Douglas Gregor | 49f40bd | 2009-09-18 19:03:04 +0000 | [diff] [blame] | 323 | if (Tok.is(tok::code_completion)) { |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 324 | Actions.CodeCompleteUsing(getCurScope()); |
Douglas Gregor | dc84534 | 2010-05-25 05:58:43 +0000 | [diff] [blame] | 325 | ConsumeCodeCompletionToken(); |
Douglas Gregor | 49f40bd | 2009-09-18 19:03:04 +0000 | [diff] [blame] | 326 | } |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 327 | |
John McCall | 78b8105 | 2010-11-10 02:40:36 +0000 | [diff] [blame] | 328 | // 'using namespace' means this is a using-directive. |
| 329 | if (Tok.is(tok::kw_namespace)) { |
| 330 | // Template parameters are always an error here. |
| 331 | if (TemplateInfo.Kind) { |
| 332 | SourceRange R = TemplateInfo.getSourceRange(); |
| 333 | Diag(UsingLoc, diag::err_templated_using_directive) |
| 334 | << R << FixItHint::CreateRemoval(R); |
| 335 | } |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 336 | |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 337 | return ParseUsingDirective(Context, UsingLoc, DeclEnd, attrs); |
John McCall | 78b8105 | 2010-11-10 02:40:36 +0000 | [diff] [blame] | 338 | } |
| 339 | |
Richard Smith | 162e1c1 | 2011-04-15 14:24:37 +0000 | [diff] [blame] | 340 | // Otherwise, it must be a using-declaration or an alias-declaration. |
John McCall | 78b8105 | 2010-11-10 02:40:36 +0000 | [diff] [blame] | 341 | |
| 342 | // Using declarations can't have attributes. |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 343 | ProhibitAttributes(attrs); |
Chris Lattner | 2f27477 | 2009-01-06 06:55:51 +0000 | [diff] [blame] | 344 | |
John McCall | 78b8105 | 2010-11-10 02:40:36 +0000 | [diff] [blame] | 345 | return ParseUsingDeclaration(Context, TemplateInfo, UsingLoc, DeclEnd); |
Douglas Gregor | f780abc | 2008-12-30 03:27:21 +0000 | [diff] [blame] | 346 | } |
| 347 | |
| 348 | /// ParseUsingDirective - Parse C++ using-directive, assumes |
| 349 | /// that current token is 'namespace' and 'using' was already parsed. |
| 350 | /// |
| 351 | /// using-directive: [C++ 7.3.p4: namespace.udir] |
| 352 | /// 'using' 'namespace' ::[opt] nested-name-specifier[opt] |
| 353 | /// namespace-name ; |
| 354 | /// [GNU] using-directive: |
| 355 | /// 'using' 'namespace' ::[opt] nested-name-specifier[opt] |
| 356 | /// namespace-name attributes[opt] ; |
| 357 | /// |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 358 | Decl *Parser::ParseUsingDirective(unsigned Context, |
John McCall | 78b8105 | 2010-11-10 02:40:36 +0000 | [diff] [blame] | 359 | SourceLocation UsingLoc, |
| 360 | SourceLocation &DeclEnd, |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 361 | ParsedAttributes &attrs) { |
Douglas Gregor | f780abc | 2008-12-30 03:27:21 +0000 | [diff] [blame] | 362 | assert(Tok.is(tok::kw_namespace) && "Not 'namespace' token"); |
| 363 | |
| 364 | // Eat 'namespace'. |
| 365 | SourceLocation NamespcLoc = ConsumeToken(); |
| 366 | |
Douglas Gregor | 49f40bd | 2009-09-18 19:03:04 +0000 | [diff] [blame] | 367 | if (Tok.is(tok::code_completion)) { |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 368 | Actions.CodeCompleteUsingDirective(getCurScope()); |
Douglas Gregor | dc84534 | 2010-05-25 05:58:43 +0000 | [diff] [blame] | 369 | ConsumeCodeCompletionToken(); |
Douglas Gregor | 49f40bd | 2009-09-18 19:03:04 +0000 | [diff] [blame] | 370 | } |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 371 | |
Douglas Gregor | f780abc | 2008-12-30 03:27:21 +0000 | [diff] [blame] | 372 | CXXScopeSpec SS; |
| 373 | // Parse (optional) nested-name-specifier. |
John McCall | b3d8748 | 2010-08-24 05:47:05 +0000 | [diff] [blame] | 374 | ParseOptionalCXXScopeSpecifier(SS, ParsedType(), false); |
Douglas Gregor | f780abc | 2008-12-30 03:27:21 +0000 | [diff] [blame] | 375 | |
Douglas Gregor | f780abc | 2008-12-30 03:27:21 +0000 | [diff] [blame] | 376 | IdentifierInfo *NamespcName = 0; |
| 377 | SourceLocation IdentLoc = SourceLocation(); |
| 378 | |
| 379 | // Parse namespace-name. |
Chris Lattner | 823c44e | 2009-01-06 07:27:21 +0000 | [diff] [blame] | 380 | if (SS.isInvalid() || Tok.isNot(tok::identifier)) { |
Douglas Gregor | f780abc | 2008-12-30 03:27:21 +0000 | [diff] [blame] | 381 | Diag(Tok, diag::err_expected_namespace_name); |
| 382 | // If there was invalid namespace name, skip to end of decl, and eat ';'. |
| 383 | SkipUntil(tok::semi); |
| 384 | // FIXME: Are there cases, when we would like to call ActOnUsingDirective? |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 385 | return 0; |
Douglas Gregor | f780abc | 2008-12-30 03:27:21 +0000 | [diff] [blame] | 386 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 387 | |
Chris Lattner | 823c44e | 2009-01-06 07:27:21 +0000 | [diff] [blame] | 388 | // Parse identifier. |
| 389 | NamespcName = Tok.getIdentifierInfo(); |
| 390 | IdentLoc = ConsumeToken(); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 391 | |
Chris Lattner | 823c44e | 2009-01-06 07:27:21 +0000 | [diff] [blame] | 392 | // Parse (optional) attributes (most likely GNU strong-using extension). |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 393 | bool GNUAttr = false; |
| 394 | if (Tok.is(tok::kw___attribute)) { |
| 395 | GNUAttr = true; |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 396 | ParseGNUAttributes(attrs); |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 397 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 398 | |
Chris Lattner | 823c44e | 2009-01-06 07:27:21 +0000 | [diff] [blame] | 399 | // Eat ';'. |
Chris Lattner | 97144fc | 2009-04-02 04:16:50 +0000 | [diff] [blame] | 400 | DeclEnd = Tok.getLocation(); |
Chris Lattner | 6869d8e | 2009-06-14 00:07:48 +0000 | [diff] [blame] | 401 | ExpectAndConsume(tok::semi, |
Douglas Gregor | 9ba23b4 | 2010-09-07 15:23:11 +0000 | [diff] [blame] | 402 | GNUAttr ? diag::err_expected_semi_after_attribute_list |
| 403 | : diag::err_expected_semi_after_namespace_name, |
| 404 | "", tok::semi); |
Douglas Gregor | f780abc | 2008-12-30 03:27:21 +0000 | [diff] [blame] | 405 | |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 406 | return Actions.ActOnUsingDirective(getCurScope(), UsingLoc, NamespcLoc, SS, |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 407 | IdentLoc, NamespcName, attrs.getList()); |
Douglas Gregor | f780abc | 2008-12-30 03:27:21 +0000 | [diff] [blame] | 408 | } |
| 409 | |
Richard Smith | 162e1c1 | 2011-04-15 14:24:37 +0000 | [diff] [blame] | 410 | /// ParseUsingDeclaration - Parse C++ using-declaration or alias-declaration. |
| 411 | /// Assumes that 'using' was already seen. |
Douglas Gregor | f780abc | 2008-12-30 03:27:21 +0000 | [diff] [blame] | 412 | /// |
| 413 | /// using-declaration: [C++ 7.3.p3: namespace.udecl] |
| 414 | /// 'using' 'typename'[opt] ::[opt] nested-name-specifier |
Douglas Gregor | 9cfbe48 | 2009-06-20 00:51:54 +0000 | [diff] [blame] | 415 | /// unqualified-id |
| 416 | /// 'using' :: unqualified-id |
Douglas Gregor | f780abc | 2008-12-30 03:27:21 +0000 | [diff] [blame] | 417 | /// |
Richard Smith | 162e1c1 | 2011-04-15 14:24:37 +0000 | [diff] [blame] | 418 | /// alias-declaration: C++0x [decl.typedef]p2 |
| 419 | /// 'using' identifier = type-id ; |
| 420 | /// |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 421 | Decl *Parser::ParseUsingDeclaration(unsigned Context, |
John McCall | 78b8105 | 2010-11-10 02:40:36 +0000 | [diff] [blame] | 422 | const ParsedTemplateInfo &TemplateInfo, |
| 423 | SourceLocation UsingLoc, |
| 424 | SourceLocation &DeclEnd, |
| 425 | AccessSpecifier AS) { |
Douglas Gregor | 9cfbe48 | 2009-06-20 00:51:54 +0000 | [diff] [blame] | 426 | CXXScopeSpec SS; |
John McCall | 7ba107a | 2009-11-18 02:36:19 +0000 | [diff] [blame] | 427 | SourceLocation TypenameLoc; |
Douglas Gregor | 9cfbe48 | 2009-06-20 00:51:54 +0000 | [diff] [blame] | 428 | bool IsTypeName; |
| 429 | |
| 430 | // Ignore optional 'typename'. |
Douglas Gregor | 12c118a | 2009-11-04 16:30:06 +0000 | [diff] [blame] | 431 | // FIXME: This is wrong; we should parse this as a typename-specifier. |
Douglas Gregor | 9cfbe48 | 2009-06-20 00:51:54 +0000 | [diff] [blame] | 432 | if (Tok.is(tok::kw_typename)) { |
John McCall | 7ba107a | 2009-11-18 02:36:19 +0000 | [diff] [blame] | 433 | TypenameLoc = Tok.getLocation(); |
Douglas Gregor | 9cfbe48 | 2009-06-20 00:51:54 +0000 | [diff] [blame] | 434 | ConsumeToken(); |
| 435 | IsTypeName = true; |
| 436 | } |
| 437 | else |
| 438 | IsTypeName = false; |
| 439 | |
| 440 | // Parse nested-name-specifier. |
John McCall | b3d8748 | 2010-08-24 05:47:05 +0000 | [diff] [blame] | 441 | ParseOptionalCXXScopeSpecifier(SS, ParsedType(), false); |
Douglas Gregor | 9cfbe48 | 2009-06-20 00:51:54 +0000 | [diff] [blame] | 442 | |
Douglas Gregor | 9cfbe48 | 2009-06-20 00:51:54 +0000 | [diff] [blame] | 443 | // Check nested-name specifier. |
| 444 | if (SS.isInvalid()) { |
| 445 | SkipUntil(tok::semi); |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 446 | return 0; |
Douglas Gregor | 9cfbe48 | 2009-06-20 00:51:54 +0000 | [diff] [blame] | 447 | } |
Douglas Gregor | 12c118a | 2009-11-04 16:30:06 +0000 | [diff] [blame] | 448 | |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 449 | // Parse the unqualified-id. We allow parsing of both constructor and |
Douglas Gregor | 12c118a | 2009-11-04 16:30:06 +0000 | [diff] [blame] | 450 | // destructor names and allow the action module to diagnose any semantic |
| 451 | // errors. |
| 452 | UnqualifiedId Name; |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 453 | if (ParseUnqualifiedId(SS, |
Douglas Gregor | 12c118a | 2009-11-04 16:30:06 +0000 | [diff] [blame] | 454 | /*EnteringContext=*/false, |
| 455 | /*AllowDestructorName=*/true, |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 456 | /*AllowConstructorName=*/true, |
John McCall | b3d8748 | 2010-08-24 05:47:05 +0000 | [diff] [blame] | 457 | ParsedType(), |
Douglas Gregor | 12c118a | 2009-11-04 16:30:06 +0000 | [diff] [blame] | 458 | Name)) { |
Douglas Gregor | 9cfbe48 | 2009-06-20 00:51:54 +0000 | [diff] [blame] | 459 | SkipUntil(tok::semi); |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 460 | return 0; |
Douglas Gregor | 9cfbe48 | 2009-06-20 00:51:54 +0000 | [diff] [blame] | 461 | } |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 462 | |
John McCall | 0b7e678 | 2011-03-24 11:26:52 +0000 | [diff] [blame] | 463 | ParsedAttributes attrs(AttrFactory); |
Richard Smith | 162e1c1 | 2011-04-15 14:24:37 +0000 | [diff] [blame] | 464 | |
| 465 | // Maybe this is an alias-declaration. |
| 466 | bool IsAliasDecl = Tok.is(tok::equal); |
| 467 | TypeResult TypeAlias; |
| 468 | if (IsAliasDecl) { |
Richard Smith | 3e4c6c4 | 2011-05-05 21:57:07 +0000 | [diff] [blame] | 469 | // TODO: Attribute support. C++0x attributes may appear before the equals. |
| 470 | // Where can GNU attributes appear? |
Richard Smith | 162e1c1 | 2011-04-15 14:24:37 +0000 | [diff] [blame] | 471 | ConsumeToken(); |
| 472 | |
| 473 | if (!getLang().CPlusPlus0x) |
| 474 | Diag(Tok.getLocation(), diag::ext_alias_declaration); |
| 475 | |
Richard Smith | 3e4c6c4 | 2011-05-05 21:57:07 +0000 | [diff] [blame] | 476 | // Type alias templates cannot be specialized. |
| 477 | int SpecKind = -1; |
Richard Smith | 536e9c1 | 2011-05-05 22:36:10 +0000 | [diff] [blame] | 478 | if (TemplateInfo.Kind == ParsedTemplateInfo::Template && |
| 479 | Name.getKind() == UnqualifiedId::IK_TemplateId) |
Richard Smith | 3e4c6c4 | 2011-05-05 21:57:07 +0000 | [diff] [blame] | 480 | SpecKind = 0; |
| 481 | if (TemplateInfo.Kind == ParsedTemplateInfo::ExplicitSpecialization) |
| 482 | SpecKind = 1; |
| 483 | if (TemplateInfo.Kind == ParsedTemplateInfo::ExplicitInstantiation) |
| 484 | SpecKind = 2; |
| 485 | if (SpecKind != -1) { |
| 486 | SourceRange Range; |
| 487 | if (SpecKind == 0) |
| 488 | Range = SourceRange(Name.TemplateId->LAngleLoc, |
| 489 | Name.TemplateId->RAngleLoc); |
| 490 | else |
| 491 | Range = TemplateInfo.getSourceRange(); |
| 492 | Diag(Range.getBegin(), diag::err_alias_declaration_specialization) |
| 493 | << SpecKind << Range; |
| 494 | SkipUntil(tok::semi); |
| 495 | return 0; |
| 496 | } |
| 497 | |
Richard Smith | 162e1c1 | 2011-04-15 14:24:37 +0000 | [diff] [blame] | 498 | // Name must be an identifier. |
| 499 | if (Name.getKind() != UnqualifiedId::IK_Identifier) { |
| 500 | Diag(Name.StartLocation, diag::err_alias_declaration_not_identifier); |
| 501 | // No removal fixit: can't recover from this. |
| 502 | SkipUntil(tok::semi); |
| 503 | return 0; |
| 504 | } else if (IsTypeName) |
| 505 | Diag(TypenameLoc, diag::err_alias_declaration_not_identifier) |
| 506 | << FixItHint::CreateRemoval(SourceRange(TypenameLoc, |
| 507 | SS.isNotEmpty() ? SS.getEndLoc() : TypenameLoc)); |
| 508 | else if (SS.isNotEmpty()) |
| 509 | Diag(SS.getBeginLoc(), diag::err_alias_declaration_not_identifier) |
| 510 | << FixItHint::CreateRemoval(SS.getRange()); |
| 511 | |
Richard Smith | 3e4c6c4 | 2011-05-05 21:57:07 +0000 | [diff] [blame] | 512 | TypeAlias = ParseTypeName(0, TemplateInfo.Kind ? |
| 513 | Declarator::AliasTemplateContext : |
| 514 | Declarator::AliasDeclContext); |
Richard Smith | 162e1c1 | 2011-04-15 14:24:37 +0000 | [diff] [blame] | 515 | } else |
| 516 | // Parse (optional) attributes (most likely GNU strong-using extension). |
| 517 | MaybeParseGNUAttributes(attrs); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 518 | |
Douglas Gregor | 9cfbe48 | 2009-06-20 00:51:54 +0000 | [diff] [blame] | 519 | // Eat ';'. |
| 520 | DeclEnd = Tok.getLocation(); |
| 521 | ExpectAndConsume(tok::semi, diag::err_expected_semi_after, |
Richard Smith | 162e1c1 | 2011-04-15 14:24:37 +0000 | [diff] [blame] | 522 | !attrs.empty() ? "attributes list" : |
| 523 | IsAliasDecl ? "alias declaration" : "using declaration", |
Douglas Gregor | 12c118a | 2009-11-04 16:30:06 +0000 | [diff] [blame] | 524 | tok::semi); |
Douglas Gregor | 9cfbe48 | 2009-06-20 00:51:54 +0000 | [diff] [blame] | 525 | |
John McCall | 78b8105 | 2010-11-10 02:40:36 +0000 | [diff] [blame] | 526 | // Diagnose an attempt to declare a templated using-declaration. |
Richard Smith | 3e4c6c4 | 2011-05-05 21:57:07 +0000 | [diff] [blame] | 527 | // In C++0x, alias-declarations can be templates: |
Richard Smith | 162e1c1 | 2011-04-15 14:24:37 +0000 | [diff] [blame] | 528 | // template <...> using id = type; |
Richard Smith | 3e4c6c4 | 2011-05-05 21:57:07 +0000 | [diff] [blame] | 529 | if (TemplateInfo.Kind && !IsAliasDecl) { |
John McCall | 78b8105 | 2010-11-10 02:40:36 +0000 | [diff] [blame] | 530 | SourceRange R = TemplateInfo.getSourceRange(); |
| 531 | Diag(UsingLoc, diag::err_templated_using_declaration) |
| 532 | << R << FixItHint::CreateRemoval(R); |
| 533 | |
| 534 | // Unfortunately, we have to bail out instead of recovering by |
| 535 | // ignoring the parameters, just in case the nested name specifier |
| 536 | // depends on the parameters. |
| 537 | return 0; |
| 538 | } |
| 539 | |
Richard Smith | 3e4c6c4 | 2011-05-05 21:57:07 +0000 | [diff] [blame] | 540 | if (IsAliasDecl) { |
| 541 | TemplateParameterLists *TemplateParams = TemplateInfo.TemplateParams; |
| 542 | MultiTemplateParamsArg TemplateParamsArg(Actions, |
| 543 | TemplateParams ? TemplateParams->data() : 0, |
| 544 | TemplateParams ? TemplateParams->size() : 0); |
| 545 | return Actions.ActOnAliasDeclaration(getCurScope(), AS, TemplateParamsArg, |
| 546 | UsingLoc, Name, TypeAlias); |
| 547 | } |
Richard Smith | 162e1c1 | 2011-04-15 14:24:37 +0000 | [diff] [blame] | 548 | |
Ted Kremenek | 8113ecf | 2010-11-10 05:59:39 +0000 | [diff] [blame] | 549 | return Actions.ActOnUsingDeclaration(getCurScope(), AS, true, UsingLoc, SS, |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 550 | Name, attrs.getList(), |
| 551 | IsTypeName, TypenameLoc); |
Douglas Gregor | f780abc | 2008-12-30 03:27:21 +0000 | [diff] [blame] | 552 | } |
| 553 | |
Peter Collingbourne | c6eb44b | 2011-04-15 00:35:57 +0000 | [diff] [blame] | 554 | /// ParseStaticAssertDeclaration - Parse C++0x or C1X static_assert-declaration. |
Anders Carlsson | 511d7ab | 2009-03-11 16:27:10 +0000 | [diff] [blame] | 555 | /// |
Peter Collingbourne | c6eb44b | 2011-04-15 00:35:57 +0000 | [diff] [blame] | 556 | /// [C++0x] static_assert-declaration: |
| 557 | /// static_assert ( constant-expression , string-literal ) ; |
| 558 | /// |
| 559 | /// [C1X] static_assert-declaration: |
| 560 | /// _Static_assert ( constant-expression , string-literal ) ; |
Anders Carlsson | 511d7ab | 2009-03-11 16:27:10 +0000 | [diff] [blame] | 561 | /// |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 562 | Decl *Parser::ParseStaticAssertDeclaration(SourceLocation &DeclEnd){ |
Peter Collingbourne | c6eb44b | 2011-04-15 00:35:57 +0000 | [diff] [blame] | 563 | assert((Tok.is(tok::kw_static_assert) || Tok.is(tok::kw__Static_assert)) && |
| 564 | "Not a static_assert declaration"); |
| 565 | |
| 566 | if (Tok.is(tok::kw__Static_assert) && !getLang().C1X) |
| 567 | Diag(Tok, diag::ext_c1x_static_assert); |
| 568 | |
Anders Carlsson | 511d7ab | 2009-03-11 16:27:10 +0000 | [diff] [blame] | 569 | SourceLocation StaticAssertLoc = ConsumeToken(); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 570 | |
Anders Carlsson | 511d7ab | 2009-03-11 16:27:10 +0000 | [diff] [blame] | 571 | if (Tok.isNot(tok::l_paren)) { |
| 572 | Diag(Tok, diag::err_expected_lparen); |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 573 | return 0; |
Anders Carlsson | 511d7ab | 2009-03-11 16:27:10 +0000 | [diff] [blame] | 574 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 575 | |
Anders Carlsson | 511d7ab | 2009-03-11 16:27:10 +0000 | [diff] [blame] | 576 | SourceLocation LParenLoc = ConsumeParen(); |
Douglas Gregor | e0762c9 | 2009-06-19 23:52:42 +0000 | [diff] [blame] | 577 | |
John McCall | 60d7b3a | 2010-08-24 06:29:42 +0000 | [diff] [blame] | 578 | ExprResult AssertExpr(ParseConstantExpression()); |
Anders Carlsson | 511d7ab | 2009-03-11 16:27:10 +0000 | [diff] [blame] | 579 | if (AssertExpr.isInvalid()) { |
| 580 | SkipUntil(tok::semi); |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 581 | return 0; |
Anders Carlsson | 511d7ab | 2009-03-11 16:27:10 +0000 | [diff] [blame] | 582 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 583 | |
Anders Carlsson | ad5f960 | 2009-03-13 23:29:20 +0000 | [diff] [blame] | 584 | if (ExpectAndConsume(tok::comma, diag::err_expected_comma, "", tok::semi)) |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 585 | return 0; |
Anders Carlsson | ad5f960 | 2009-03-13 23:29:20 +0000 | [diff] [blame] | 586 | |
Anders Carlsson | 511d7ab | 2009-03-11 16:27:10 +0000 | [diff] [blame] | 587 | if (Tok.isNot(tok::string_literal)) { |
| 588 | Diag(Tok, diag::err_expected_string_literal); |
| 589 | SkipUntil(tok::semi); |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 590 | return 0; |
Anders Carlsson | 511d7ab | 2009-03-11 16:27:10 +0000 | [diff] [blame] | 591 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 592 | |
John McCall | 60d7b3a | 2010-08-24 06:29:42 +0000 | [diff] [blame] | 593 | ExprResult AssertMessage(ParseStringLiteralExpression()); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 594 | if (AssertMessage.isInvalid()) |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 595 | return 0; |
Anders Carlsson | 511d7ab | 2009-03-11 16:27:10 +0000 | [diff] [blame] | 596 | |
Abramo Bagnara | a2026c9 | 2011-03-08 16:41:52 +0000 | [diff] [blame] | 597 | SourceLocation RParenLoc = MatchRHSPunctuation(tok::r_paren, LParenLoc); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 598 | |
Chris Lattner | 97144fc | 2009-04-02 04:16:50 +0000 | [diff] [blame] | 599 | DeclEnd = Tok.getLocation(); |
Douglas Gregor | 9ba23b4 | 2010-09-07 15:23:11 +0000 | [diff] [blame] | 600 | ExpectAndConsumeSemi(diag::err_expected_semi_after_static_assert); |
Anders Carlsson | 511d7ab | 2009-03-11 16:27:10 +0000 | [diff] [blame] | 601 | |
John McCall | 9ae2f07 | 2010-08-23 23:25:46 +0000 | [diff] [blame] | 602 | return Actions.ActOnStaticAssertDeclaration(StaticAssertLoc, |
| 603 | AssertExpr.take(), |
Abramo Bagnara | a2026c9 | 2011-03-08 16:41:52 +0000 | [diff] [blame] | 604 | AssertMessage.take(), |
| 605 | RParenLoc); |
Anders Carlsson | 511d7ab | 2009-03-11 16:27:10 +0000 | [diff] [blame] | 606 | } |
| 607 | |
Anders Carlsson | 6fd634f | 2009-06-24 17:47:40 +0000 | [diff] [blame] | 608 | /// ParseDecltypeSpecifier - Parse a C++0x decltype specifier. |
| 609 | /// |
| 610 | /// 'decltype' ( expression ) |
| 611 | /// |
| 612 | void Parser::ParseDecltypeSpecifier(DeclSpec &DS) { |
| 613 | assert(Tok.is(tok::kw_decltype) && "Not a decltype specifier"); |
| 614 | |
| 615 | SourceLocation StartLoc = ConsumeToken(); |
| 616 | SourceLocation LParenLoc = Tok.getLocation(); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 617 | |
| 618 | if (ExpectAndConsume(tok::l_paren, diag::err_expected_lparen_after, |
Anders Carlsson | 6fd634f | 2009-06-24 17:47:40 +0000 | [diff] [blame] | 619 | "decltype")) { |
| 620 | SkipUntil(tok::r_paren); |
| 621 | return; |
| 622 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 623 | |
Anders Carlsson | 6fd634f | 2009-06-24 17:47:40 +0000 | [diff] [blame] | 624 | // Parse the expression |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 625 | |
Anders Carlsson | 6fd634f | 2009-06-24 17:47:40 +0000 | [diff] [blame] | 626 | // C++0x [dcl.type.simple]p4: |
| 627 | // The operand of the decltype specifier is an unevaluated operand. |
| 628 | EnterExpressionEvaluationContext Unevaluated(Actions, |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 629 | Sema::Unevaluated); |
John McCall | 60d7b3a | 2010-08-24 06:29:42 +0000 | [diff] [blame] | 630 | ExprResult Result = ParseExpression(); |
Anders Carlsson | 6fd634f | 2009-06-24 17:47:40 +0000 | [diff] [blame] | 631 | if (Result.isInvalid()) { |
| 632 | SkipUntil(tok::r_paren); |
| 633 | return; |
| 634 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 635 | |
Anders Carlsson | 6fd634f | 2009-06-24 17:47:40 +0000 | [diff] [blame] | 636 | // Match the ')' |
| 637 | SourceLocation RParenLoc; |
| 638 | if (Tok.is(tok::r_paren)) |
| 639 | RParenLoc = ConsumeParen(); |
| 640 | else |
| 641 | MatchRHSPunctuation(tok::r_paren, LParenLoc); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 642 | |
Anders Carlsson | 6fd634f | 2009-06-24 17:47:40 +0000 | [diff] [blame] | 643 | if (RParenLoc.isInvalid()) |
| 644 | return; |
| 645 | |
| 646 | const char *PrevSpec = 0; |
John McCall | fec5401 | 2009-08-03 20:12:06 +0000 | [diff] [blame] | 647 | unsigned DiagID; |
Anders Carlsson | 6fd634f | 2009-06-24 17:47:40 +0000 | [diff] [blame] | 648 | // Check for duplicate type specifiers (e.g. "int decltype(a)"). |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 649 | if (DS.SetTypeSpecType(DeclSpec::TST_decltype, StartLoc, PrevSpec, |
John McCall | fec5401 | 2009-08-03 20:12:06 +0000 | [diff] [blame] | 650 | DiagID, Result.release())) |
| 651 | Diag(StartLoc, DiagID) << PrevSpec; |
Anders Carlsson | 6fd634f | 2009-06-24 17:47:40 +0000 | [diff] [blame] | 652 | } |
| 653 | |
Sean Hunt | db5d44b | 2011-05-19 05:37:45 +0000 | [diff] [blame] | 654 | void Parser::ParseUnderlyingTypeSpecifier(DeclSpec &DS) { |
| 655 | assert(Tok.is(tok::kw___underlying_type) && |
| 656 | "Not an underlying type specifier"); |
| 657 | |
| 658 | SourceLocation StartLoc = ConsumeToken(); |
| 659 | SourceLocation LParenLoc = Tok.getLocation(); |
| 660 | |
| 661 | if (ExpectAndConsume(tok::l_paren, diag::err_expected_lparen_after, |
| 662 | "__underlying_type")) { |
| 663 | SkipUntil(tok::r_paren); |
| 664 | return; |
| 665 | } |
| 666 | |
| 667 | TypeResult Result = ParseTypeName(); |
| 668 | if (Result.isInvalid()) { |
| 669 | SkipUntil(tok::r_paren); |
| 670 | return; |
| 671 | } |
| 672 | |
| 673 | // Match the ')' |
| 674 | SourceLocation RParenLoc; |
| 675 | if (Tok.is(tok::r_paren)) |
| 676 | RParenLoc = ConsumeParen(); |
| 677 | else |
| 678 | MatchRHSPunctuation(tok::r_paren, LParenLoc); |
| 679 | |
| 680 | if (RParenLoc.isInvalid()) |
| 681 | return; |
| 682 | |
| 683 | const char *PrevSpec = 0; |
| 684 | unsigned DiagID; |
Sean Hunt | ca63c20 | 2011-05-24 22:41:36 +0000 | [diff] [blame] | 685 | if (DS.SetTypeSpecType(DeclSpec::TST_underlyingType, StartLoc, PrevSpec, |
Sean Hunt | db5d44b | 2011-05-19 05:37:45 +0000 | [diff] [blame] | 686 | DiagID, Result.release())) |
| 687 | Diag(StartLoc, DiagID) << PrevSpec; |
| 688 | } |
| 689 | |
Douglas Gregor | 42a552f | 2008-11-05 20:51:48 +0000 | [diff] [blame] | 690 | /// ParseClassName - Parse a C++ class-name, which names a class. Note |
| 691 | /// that we only check that the result names a type; semantic analysis |
| 692 | /// 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] | 693 | /// either a type or NULL, depending on whether a type name was |
Douglas Gregor | 42a552f | 2008-11-05 20:51:48 +0000 | [diff] [blame] | 694 | /// found. |
| 695 | /// |
| 696 | /// class-name: [C++ 9.1] |
| 697 | /// identifier |
Douglas Gregor | 7f43d67 | 2009-02-25 23:52:28 +0000 | [diff] [blame] | 698 | /// simple-template-id |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 699 | /// |
Douglas Gregor | 31a19b6 | 2009-04-01 21:51:26 +0000 | [diff] [blame] | 700 | Parser::TypeResult Parser::ParseClassName(SourceLocation &EndLocation, |
Douglas Gregor | 059101f | 2011-03-02 00:47:37 +0000 | [diff] [blame] | 701 | CXXScopeSpec &SS) { |
Douglas Gregor | 7f43d67 | 2009-02-25 23:52:28 +0000 | [diff] [blame] | 702 | // Check whether we have a template-id that names a type. |
| 703 | if (Tok.is(tok::annot_template_id)) { |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 704 | TemplateIdAnnotation *TemplateId |
Douglas Gregor | 7f43d67 | 2009-02-25 23:52:28 +0000 | [diff] [blame] | 705 | = static_cast<TemplateIdAnnotation *>(Tok.getAnnotationValue()); |
Douglas Gregor | d9b600c | 2010-01-12 17:52:59 +0000 | [diff] [blame] | 706 | if (TemplateId->Kind == TNK_Type_template || |
| 707 | TemplateId->Kind == TNK_Dependent_template_name) { |
Douglas Gregor | 059101f | 2011-03-02 00:47:37 +0000 | [diff] [blame] | 708 | AnnotateTemplateIdTokenAsType(); |
Douglas Gregor | 7f43d67 | 2009-02-25 23:52:28 +0000 | [diff] [blame] | 709 | |
| 710 | assert(Tok.is(tok::annot_typename) && "template-id -> type failed"); |
John McCall | b3d8748 | 2010-08-24 05:47:05 +0000 | [diff] [blame] | 711 | ParsedType Type = getTypeAnnotation(Tok); |
Douglas Gregor | 7f43d67 | 2009-02-25 23:52:28 +0000 | [diff] [blame] | 712 | EndLocation = Tok.getAnnotationEndLoc(); |
| 713 | ConsumeToken(); |
Douglas Gregor | 31a19b6 | 2009-04-01 21:51:26 +0000 | [diff] [blame] | 714 | |
| 715 | if (Type) |
| 716 | return Type; |
| 717 | return true; |
Douglas Gregor | 7f43d67 | 2009-02-25 23:52:28 +0000 | [diff] [blame] | 718 | } |
| 719 | |
| 720 | // Fall through to produce an error below. |
| 721 | } |
| 722 | |
Douglas Gregor | 42a552f | 2008-11-05 20:51:48 +0000 | [diff] [blame] | 723 | if (Tok.isNot(tok::identifier)) { |
Chris Lattner | 1ab3b96 | 2008-11-18 07:48:38 +0000 | [diff] [blame] | 724 | Diag(Tok, diag::err_expected_class_name); |
Douglas Gregor | 31a19b6 | 2009-04-01 21:51:26 +0000 | [diff] [blame] | 725 | return true; |
Douglas Gregor | 42a552f | 2008-11-05 20:51:48 +0000 | [diff] [blame] | 726 | } |
| 727 | |
Douglas Gregor | 84d0a19 | 2010-01-12 21:28:44 +0000 | [diff] [blame] | 728 | IdentifierInfo *Id = Tok.getIdentifierInfo(); |
| 729 | SourceLocation IdLoc = ConsumeToken(); |
| 730 | |
| 731 | if (Tok.is(tok::less)) { |
| 732 | // It looks the user intended to write a template-id here, but the |
| 733 | // template-name was wrong. Try to fix that. |
| 734 | TemplateNameKind TNK = TNK_Type_template; |
| 735 | TemplateTy Template; |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 736 | if (!Actions.DiagnoseUnknownTemplateName(*Id, IdLoc, getCurScope(), |
Douglas Gregor | 059101f | 2011-03-02 00:47:37 +0000 | [diff] [blame] | 737 | &SS, Template, TNK)) { |
Douglas Gregor | 84d0a19 | 2010-01-12 21:28:44 +0000 | [diff] [blame] | 738 | Diag(IdLoc, diag::err_unknown_template_name) |
| 739 | << Id; |
| 740 | } |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 741 | |
Douglas Gregor | 84d0a19 | 2010-01-12 21:28:44 +0000 | [diff] [blame] | 742 | if (!Template) |
| 743 | return true; |
| 744 | |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 745 | // Form the template name |
Douglas Gregor | 84d0a19 | 2010-01-12 21:28:44 +0000 | [diff] [blame] | 746 | UnqualifiedId TemplateName; |
| 747 | TemplateName.setIdentifier(Id, IdLoc); |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 748 | |
Douglas Gregor | 84d0a19 | 2010-01-12 21:28:44 +0000 | [diff] [blame] | 749 | // Parse the full template-id, then turn it into a type. |
| 750 | if (AnnotateTemplateIdToken(Template, TNK, SS, TemplateName, |
| 751 | SourceLocation(), true)) |
| 752 | return true; |
| 753 | if (TNK == TNK_Dependent_template_name) |
Douglas Gregor | 059101f | 2011-03-02 00:47:37 +0000 | [diff] [blame] | 754 | AnnotateTemplateIdTokenAsType(); |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 755 | |
Douglas Gregor | 84d0a19 | 2010-01-12 21:28:44 +0000 | [diff] [blame] | 756 | // If we didn't end up with a typename token, there's nothing more we |
| 757 | // can do. |
| 758 | if (Tok.isNot(tok::annot_typename)) |
| 759 | return true; |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 760 | |
Douglas Gregor | 84d0a19 | 2010-01-12 21:28:44 +0000 | [diff] [blame] | 761 | // Retrieve the type from the annotation token, consume that token, and |
| 762 | // return. |
| 763 | EndLocation = Tok.getAnnotationEndLoc(); |
John McCall | b3d8748 | 2010-08-24 05:47:05 +0000 | [diff] [blame] | 764 | ParsedType Type = getTypeAnnotation(Tok); |
Douglas Gregor | 84d0a19 | 2010-01-12 21:28:44 +0000 | [diff] [blame] | 765 | ConsumeToken(); |
| 766 | return Type; |
| 767 | } |
| 768 | |
Douglas Gregor | 42a552f | 2008-11-05 20:51:48 +0000 | [diff] [blame] | 769 | // We have an identifier; check whether it is actually a type. |
Douglas Gregor | 059101f | 2011-03-02 00:47:37 +0000 | [diff] [blame] | 770 | ParsedType Type = Actions.getTypeName(*Id, IdLoc, getCurScope(), &SS, true, |
Douglas Gregor | 9e87687 | 2011-03-01 18:12:44 +0000 | [diff] [blame] | 771 | false, ParsedType(), |
| 772 | /*NonTrivialTypeSourceInfo=*/true); |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 773 | if (!Type) { |
Douglas Gregor | 124b878 | 2010-02-16 19:09:40 +0000 | [diff] [blame] | 774 | Diag(IdLoc, diag::err_expected_class_name); |
Douglas Gregor | 31a19b6 | 2009-04-01 21:51:26 +0000 | [diff] [blame] | 775 | return true; |
Douglas Gregor | 42a552f | 2008-11-05 20:51:48 +0000 | [diff] [blame] | 776 | } |
| 777 | |
| 778 | // Consume the identifier. |
Douglas Gregor | 84d0a19 | 2010-01-12 21:28:44 +0000 | [diff] [blame] | 779 | EndLocation = IdLoc; |
Nick Lewycky | 5606220 | 2010-07-26 16:56:01 +0000 | [diff] [blame] | 780 | |
| 781 | // Fake up a Declarator to use with ActOnTypeName. |
John McCall | 0b7e678 | 2011-03-24 11:26:52 +0000 | [diff] [blame] | 782 | DeclSpec DS(AttrFactory); |
Nick Lewycky | 5606220 | 2010-07-26 16:56:01 +0000 | [diff] [blame] | 783 | DS.SetRangeStart(IdLoc); |
| 784 | DS.SetRangeEnd(EndLocation); |
Douglas Gregor | 059101f | 2011-03-02 00:47:37 +0000 | [diff] [blame] | 785 | DS.getTypeSpecScope() = SS; |
Nick Lewycky | 5606220 | 2010-07-26 16:56:01 +0000 | [diff] [blame] | 786 | |
| 787 | const char *PrevSpec = 0; |
| 788 | unsigned DiagID; |
| 789 | DS.SetTypeSpecType(TST_typename, IdLoc, PrevSpec, DiagID, Type); |
| 790 | |
| 791 | Declarator DeclaratorInfo(DS, Declarator::TypeNameContext); |
| 792 | return Actions.ActOnTypeName(getCurScope(), DeclaratorInfo); |
Douglas Gregor | 42a552f | 2008-11-05 20:51:48 +0000 | [diff] [blame] | 793 | } |
| 794 | |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 795 | /// ParseClassSpecifier - Parse a C++ class-specifier [C++ class] or |
| 796 | /// elaborated-type-specifier [C++ dcl.type.elab]; we can't tell which |
| 797 | /// 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] | 798 | /// cannot start a definition. If SuppressDeclarations is true, we do know. |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 799 | /// |
| 800 | /// class-specifier: [C++ class] |
| 801 | /// class-head '{' member-specification[opt] '}' |
| 802 | /// class-head '{' member-specification[opt] '}' attributes[opt] |
| 803 | /// class-head: |
| 804 | /// class-key identifier[opt] base-clause[opt] |
| 805 | /// class-key nested-name-specifier identifier base-clause[opt] |
| 806 | /// class-key nested-name-specifier[opt] simple-template-id |
| 807 | /// base-clause[opt] |
| 808 | /// [GNU] class-key attributes[opt] identifier[opt] base-clause[opt] |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 809 | /// [GNU] class-key attributes[opt] nested-name-specifier |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 810 | /// identifier base-clause[opt] |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 811 | /// [GNU] class-key attributes[opt] nested-name-specifier[opt] |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 812 | /// simple-template-id base-clause[opt] |
| 813 | /// class-key: |
| 814 | /// 'class' |
| 815 | /// 'struct' |
| 816 | /// 'union' |
| 817 | /// |
| 818 | /// elaborated-type-specifier: [C++ dcl.type.elab] |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 819 | /// class-key ::[opt] nested-name-specifier[opt] identifier |
| 820 | /// class-key ::[opt] nested-name-specifier[opt] 'template'[opt] |
| 821 | /// simple-template-id |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 822 | /// |
| 823 | /// Note that the C++ class-specifier and elaborated-type-specifier, |
| 824 | /// together, subsume the C99 struct-or-union-specifier: |
| 825 | /// |
| 826 | /// struct-or-union-specifier: [C99 6.7.2.1] |
| 827 | /// struct-or-union identifier[opt] '{' struct-contents '}' |
| 828 | /// struct-or-union identifier |
| 829 | /// [GNU] struct-or-union attributes[opt] identifier[opt] '{' struct-contents |
| 830 | /// '}' attributes[opt] |
| 831 | /// [GNU] struct-or-union attributes[opt] identifier |
| 832 | /// struct-or-union: |
| 833 | /// 'struct' |
| 834 | /// 'union' |
Chris Lattner | 4c97d76 | 2009-04-12 21:49:30 +0000 | [diff] [blame] | 835 | void Parser::ParseClassSpecifier(tok::TokenKind TagTokKind, |
| 836 | SourceLocation StartLoc, DeclSpec &DS, |
Douglas Gregor | 4d9a16f | 2009-05-12 23:25:50 +0000 | [diff] [blame] | 837 | const ParsedTemplateInfo &TemplateInfo, |
Sebastian Redl | d9bafa7 | 2010-02-03 21:21:43 +0000 | [diff] [blame] | 838 | AccessSpecifier AS, bool SuppressDeclarations){ |
Chris Lattner | 4c97d76 | 2009-04-12 21:49:30 +0000 | [diff] [blame] | 839 | DeclSpec::TST TagType; |
| 840 | if (TagTokKind == tok::kw_struct) |
| 841 | TagType = DeclSpec::TST_struct; |
| 842 | else if (TagTokKind == tok::kw_class) |
| 843 | TagType = DeclSpec::TST_class; |
| 844 | else { |
| 845 | assert(TagTokKind == tok::kw_union && "Not a class specifier"); |
| 846 | TagType = DeclSpec::TST_union; |
| 847 | } |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 848 | |
Douglas Gregor | 374929f | 2009-09-18 15:37:17 +0000 | [diff] [blame] | 849 | if (Tok.is(tok::code_completion)) { |
| 850 | // Code completion for a struct, class, or union name. |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 851 | Actions.CodeCompleteTag(getCurScope(), TagType); |
Douglas Gregor | dc84534 | 2010-05-25 05:58:43 +0000 | [diff] [blame] | 852 | ConsumeCodeCompletionToken(); |
Douglas Gregor | 374929f | 2009-09-18 15:37:17 +0000 | [diff] [blame] | 853 | } |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 854 | |
Chandler Carruth | 926c4b4 | 2010-06-28 08:39:25 +0000 | [diff] [blame] | 855 | // C++03 [temp.explicit] 14.7.2/8: |
| 856 | // The usual access checking rules do not apply to names used to specify |
| 857 | // explicit instantiations. |
| 858 | // |
| 859 | // As an extension we do not perform access checking on the names used to |
| 860 | // specify explicit specializations either. This is important to allow |
| 861 | // specializing traits classes for private types. |
| 862 | bool SuppressingAccessChecks = false; |
| 863 | if (TemplateInfo.Kind == ParsedTemplateInfo::ExplicitInstantiation || |
| 864 | TemplateInfo.Kind == ParsedTemplateInfo::ExplicitSpecialization) { |
| 865 | Actions.ActOnStartSuppressingAccessChecks(); |
| 866 | SuppressingAccessChecks = true; |
| 867 | } |
| 868 | |
John McCall | 0b7e678 | 2011-03-24 11:26:52 +0000 | [diff] [blame] | 869 | ParsedAttributes attrs(AttrFactory); |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 870 | // If attributes exist after tag, parse them. |
| 871 | if (Tok.is(tok::kw___attribute)) |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 872 | ParseGNUAttributes(attrs); |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 873 | |
Steve Naroff | f59e17e | 2008-12-24 20:59:21 +0000 | [diff] [blame] | 874 | // If declspecs exist after tag, parse them. |
John McCall | b1d397c | 2010-08-05 17:13:11 +0000 | [diff] [blame] | 875 | while (Tok.is(tok::kw___declspec)) |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 876 | ParseMicrosoftDeclSpec(attrs); |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 877 | |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 878 | // If C++0x attributes exist here, parse them. |
| 879 | // FIXME: Are we consistent with the ordering of parsing of different |
| 880 | // styles of attributes? |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 881 | MaybeParseCXX0XAttributes(attrs); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 882 | |
John Wiegley | 20c0da7 | 2011-04-27 23:09:49 +0000 | [diff] [blame] | 883 | if (TagType == DeclSpec::TST_struct && |
Douglas Gregor | b467cda | 2011-04-29 15:31:39 +0000 | [diff] [blame] | 884 | !Tok.is(tok::identifier) && |
| 885 | Tok.getIdentifierInfo() && |
| 886 | (Tok.is(tok::kw___is_arithmetic) || |
| 887 | Tok.is(tok::kw___is_convertible) || |
John Wiegley | 20c0da7 | 2011-04-27 23:09:49 +0000 | [diff] [blame] | 888 | Tok.is(tok::kw___is_empty) || |
Douglas Gregor | b467cda | 2011-04-29 15:31:39 +0000 | [diff] [blame] | 889 | Tok.is(tok::kw___is_floating_point) || |
| 890 | Tok.is(tok::kw___is_function) || |
John Wiegley | 20c0da7 | 2011-04-27 23:09:49 +0000 | [diff] [blame] | 891 | Tok.is(tok::kw___is_fundamental) || |
Douglas Gregor | b467cda | 2011-04-29 15:31:39 +0000 | [diff] [blame] | 892 | Tok.is(tok::kw___is_integral) || |
| 893 | Tok.is(tok::kw___is_member_function_pointer) || |
| 894 | Tok.is(tok::kw___is_member_pointer) || |
| 895 | Tok.is(tok::kw___is_pod) || |
| 896 | Tok.is(tok::kw___is_pointer) || |
| 897 | Tok.is(tok::kw___is_same) || |
Douglas Gregor | 877222e | 2011-04-29 01:38:03 +0000 | [diff] [blame] | 898 | Tok.is(tok::kw___is_scalar) || |
Douglas Gregor | b467cda | 2011-04-29 15:31:39 +0000 | [diff] [blame] | 899 | Tok.is(tok::kw___is_signed) || |
| 900 | Tok.is(tok::kw___is_unsigned) || |
| 901 | Tok.is(tok::kw___is_void))) { |
| 902 | // GNU libstdc++ 4.2 and libc++ uaw certain intrinsic names as the |
| 903 | // name of struct templates, but some are keywords in GCC >= 4.3 |
| 904 | // and Clang. Therefore, when we see the token sequence "struct |
| 905 | // X", make X into a normal identifier rather than a keyword, to |
| 906 | // allow libstdc++ 4.2 and libc++ to work properly. |
Argyrios Kyrtzidis | 646395b | 2010-08-11 22:55:12 +0000 | [diff] [blame] | 907 | Tok.getIdentifierInfo()->RevertTokenIDToIdentifier(); |
Douglas Gregor | b117a60 | 2009-09-04 05:53:02 +0000 | [diff] [blame] | 908 | Tok.setKind(tok::identifier); |
| 909 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 910 | |
Argyrios Kyrtzidis | eb83ecd | 2008-11-08 16:45:02 +0000 | [diff] [blame] | 911 | // Parse the (optional) nested-name-specifier. |
John McCall | aa87d33 | 2009-12-12 11:40:51 +0000 | [diff] [blame] | 912 | CXXScopeSpec &SS = DS.getTypeSpecScope(); |
Chris Lattner | 08d92ec | 2009-12-10 00:32:41 +0000 | [diff] [blame] | 913 | if (getLang().CPlusPlus) { |
| 914 | // "FOO : BAR" is not a potential typo for "FOO::BAR". |
| 915 | ColonProtectionRAIIObject X(*this); |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 916 | |
John McCall | b3d8748 | 2010-08-24 05:47:05 +0000 | [diff] [blame] | 917 | if (ParseOptionalCXXScopeSpecifier(SS, ParsedType(), true)) |
John McCall | 207014e | 2010-07-30 06:26:29 +0000 | [diff] [blame] | 918 | DS.SetTypeSpecError(); |
John McCall | 9ba6166 | 2010-02-26 08:45:28 +0000 | [diff] [blame] | 919 | if (SS.isSet()) |
Chris Lattner | 08d92ec | 2009-12-10 00:32:41 +0000 | [diff] [blame] | 920 | if (Tok.isNot(tok::identifier) && Tok.isNot(tok::annot_template_id)) |
| 921 | Diag(Tok, diag::err_expected_ident); |
| 922 | } |
Douglas Gregor | cc63668 | 2009-02-17 23:15:12 +0000 | [diff] [blame] | 923 | |
Douglas Gregor | 2cc782f | 2009-10-30 21:46:58 +0000 | [diff] [blame] | 924 | TemplateParameterLists *TemplateParams = TemplateInfo.TemplateParams; |
| 925 | |
Douglas Gregor | cc63668 | 2009-02-17 23:15:12 +0000 | [diff] [blame] | 926 | // Parse the (optional) class name or simple-template-id. |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 927 | IdentifierInfo *Name = 0; |
| 928 | SourceLocation NameLoc; |
Douglas Gregor | 39a8de1 | 2009-02-25 19:37:18 +0000 | [diff] [blame] | 929 | TemplateIdAnnotation *TemplateId = 0; |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 930 | if (Tok.is(tok::identifier)) { |
| 931 | Name = Tok.getIdentifierInfo(); |
| 932 | NameLoc = ConsumeToken(); |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 933 | |
Douglas Gregor | 5ee3734 | 2010-05-30 22:30:21 +0000 | [diff] [blame] | 934 | if (Tok.is(tok::less) && getLang().CPlusPlus) { |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 935 | // The name was supposed to refer to a template, but didn't. |
Douglas Gregor | 2cc782f | 2009-10-30 21:46:58 +0000 | [diff] [blame] | 936 | // Eat the template argument list and try to continue parsing this as |
| 937 | // a class (or template thereof). |
| 938 | TemplateArgList TemplateArgs; |
Douglas Gregor | 2cc782f | 2009-10-30 21:46:58 +0000 | [diff] [blame] | 939 | SourceLocation LAngleLoc, RAngleLoc; |
Douglas Gregor | 059101f | 2011-03-02 00:47:37 +0000 | [diff] [blame] | 940 | if (ParseTemplateIdAfterTemplateName(TemplateTy(), NameLoc, SS, |
Douglas Gregor | 2cc782f | 2009-10-30 21:46:58 +0000 | [diff] [blame] | 941 | true, LAngleLoc, |
Douglas Gregor | 314b97f | 2009-11-10 19:49:08 +0000 | [diff] [blame] | 942 | TemplateArgs, RAngleLoc)) { |
Douglas Gregor | 2cc782f | 2009-10-30 21:46:58 +0000 | [diff] [blame] | 943 | // We couldn't parse the template argument list at all, so don't |
| 944 | // try to give any location information for the list. |
| 945 | LAngleLoc = RAngleLoc = SourceLocation(); |
| 946 | } |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 947 | |
Douglas Gregor | 2cc782f | 2009-10-30 21:46:58 +0000 | [diff] [blame] | 948 | Diag(NameLoc, diag::err_explicit_spec_non_template) |
Douglas Gregor | c78c06d | 2009-10-30 22:09:44 +0000 | [diff] [blame] | 949 | << (TemplateInfo.Kind == ParsedTemplateInfo::ExplicitInstantiation) |
Douglas Gregor | 2cc782f | 2009-10-30 21:46:58 +0000 | [diff] [blame] | 950 | << (TagType == DeclSpec::TST_class? 0 |
| 951 | : TagType == DeclSpec::TST_struct? 1 |
| 952 | : 2) |
| 953 | << Name |
| 954 | << SourceRange(LAngleLoc, RAngleLoc); |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 955 | |
| 956 | // Strip off the last template parameter list if it was empty, since |
Douglas Gregor | c78c06d | 2009-10-30 22:09:44 +0000 | [diff] [blame] | 957 | // we've removed its template argument list. |
| 958 | if (TemplateParams && TemplateInfo.LastParameterListWasEmpty) { |
| 959 | if (TemplateParams && TemplateParams->size() > 1) { |
| 960 | TemplateParams->pop_back(); |
| 961 | } else { |
| 962 | TemplateParams = 0; |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 963 | const_cast<ParsedTemplateInfo&>(TemplateInfo).Kind |
Douglas Gregor | c78c06d | 2009-10-30 22:09:44 +0000 | [diff] [blame] | 964 | = ParsedTemplateInfo::NonTemplate; |
| 965 | } |
| 966 | } else if (TemplateInfo.Kind |
| 967 | == ParsedTemplateInfo::ExplicitInstantiation) { |
| 968 | // Pretend this is just a forward declaration. |
Douglas Gregor | 2cc782f | 2009-10-30 21:46:58 +0000 | [diff] [blame] | 969 | TemplateParams = 0; |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 970 | const_cast<ParsedTemplateInfo&>(TemplateInfo).Kind |
Douglas Gregor | 2cc782f | 2009-10-30 21:46:58 +0000 | [diff] [blame] | 971 | = ParsedTemplateInfo::NonTemplate; |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 972 | const_cast<ParsedTemplateInfo&>(TemplateInfo).TemplateLoc |
Douglas Gregor | c78c06d | 2009-10-30 22:09:44 +0000 | [diff] [blame] | 973 | = SourceLocation(); |
| 974 | const_cast<ParsedTemplateInfo&>(TemplateInfo).ExternLoc |
| 975 | = SourceLocation(); |
Douglas Gregor | 2cc782f | 2009-10-30 21:46:58 +0000 | [diff] [blame] | 976 | } |
Douglas Gregor | 2cc782f | 2009-10-30 21:46:58 +0000 | [diff] [blame] | 977 | } |
Douglas Gregor | 39a8de1 | 2009-02-25 19:37:18 +0000 | [diff] [blame] | 978 | } else if (Tok.is(tok::annot_template_id)) { |
| 979 | TemplateId = static_cast<TemplateIdAnnotation *>(Tok.getAnnotationValue()); |
| 980 | NameLoc = ConsumeToken(); |
Douglas Gregor | cc63668 | 2009-02-17 23:15:12 +0000 | [diff] [blame] | 981 | |
Douglas Gregor | 059101f | 2011-03-02 00:47:37 +0000 | [diff] [blame] | 982 | if (TemplateId->Kind != TNK_Type_template && |
| 983 | TemplateId->Kind != TNK_Dependent_template_name) { |
Douglas Gregor | 39a8de1 | 2009-02-25 19:37:18 +0000 | [diff] [blame] | 984 | // The template-name in the simple-template-id refers to |
| 985 | // something other than a class template. Give an appropriate |
| 986 | // error message and skip to the ';'. |
| 987 | SourceRange Range(NameLoc); |
| 988 | if (SS.isNotEmpty()) |
| 989 | Range.setBegin(SS.getBeginLoc()); |
Douglas Gregor | cc63668 | 2009-02-17 23:15:12 +0000 | [diff] [blame] | 990 | |
Douglas Gregor | 39a8de1 | 2009-02-25 19:37:18 +0000 | [diff] [blame] | 991 | Diag(TemplateId->LAngleLoc, diag::err_template_spec_syntax_non_template) |
| 992 | << Name << static_cast<int>(TemplateId->Kind) << Range; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 993 | |
Douglas Gregor | 39a8de1 | 2009-02-25 19:37:18 +0000 | [diff] [blame] | 994 | DS.SetTypeSpecError(); |
| 995 | SkipUntil(tok::semi, false, true); |
| 996 | TemplateId->Destroy(); |
Chandler Carruth | 926c4b4 | 2010-06-28 08:39:25 +0000 | [diff] [blame] | 997 | if (SuppressingAccessChecks) |
| 998 | Actions.ActOnStopSuppressingAccessChecks(); |
| 999 | |
Douglas Gregor | 39a8de1 | 2009-02-25 19:37:18 +0000 | [diff] [blame] | 1000 | return; |
Douglas Gregor | cc63668 | 2009-02-17 23:15:12 +0000 | [diff] [blame] | 1001 | } |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 1002 | } |
| 1003 | |
Chandler Carruth | 926c4b4 | 2010-06-28 08:39:25 +0000 | [diff] [blame] | 1004 | // As soon as we're finished parsing the class's template-id, turn access |
| 1005 | // checking back on. |
| 1006 | if (SuppressingAccessChecks) |
| 1007 | Actions.ActOnStopSuppressingAccessChecks(); |
| 1008 | |
John McCall | 67d1a67 | 2009-08-06 02:15:43 +0000 | [diff] [blame] | 1009 | // There are four options here. If we have 'struct foo;', then this |
| 1010 | // is either a forward declaration or a friend declaration, which |
Anders Carlsson | cc54d59 | 2011-01-22 16:56:46 +0000 | [diff] [blame] | 1011 | // have to be treated differently. If we have 'struct foo {...', |
Anders Carlsson | 1d20927 | 2011-03-25 14:55:14 +0000 | [diff] [blame] | 1012 | // 'struct foo :...' or 'struct foo final[opt]' then this is a |
Anders Carlsson | cc54d59 | 2011-01-22 16:56:46 +0000 | [diff] [blame] | 1013 | // definition. Otherwise we have something like 'struct foo xyz', a reference. |
Sebastian Redl | d9bafa7 | 2010-02-03 21:21:43 +0000 | [diff] [blame] | 1014 | // However, in some contexts, things look like declarations but are just |
| 1015 | // references, e.g. |
| 1016 | // new struct s; |
| 1017 | // or |
| 1018 | // &T::operator struct s; |
| 1019 | // For these, SuppressDeclarations is true. |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 1020 | Sema::TagUseKind TUK; |
Sebastian Redl | d9bafa7 | 2010-02-03 21:21:43 +0000 | [diff] [blame] | 1021 | if (SuppressDeclarations) |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 1022 | TUK = Sema::TUK_Reference; |
Anders Carlsson | cc54d59 | 2011-01-22 16:56:46 +0000 | [diff] [blame] | 1023 | else if (Tok.is(tok::l_brace) || |
| 1024 | (getLang().CPlusPlus && Tok.is(tok::colon)) || |
Anders Carlsson | 8a29ba0 | 2011-03-25 14:53:29 +0000 | [diff] [blame] | 1025 | isCXX0XFinalKeyword()) { |
Douglas Gregor | d85bea2 | 2009-09-26 06:47:28 +0000 | [diff] [blame] | 1026 | if (DS.isFriendSpecified()) { |
| 1027 | // C++ [class.friend]p2: |
| 1028 | // A class shall not be defined in a friend declaration. |
| 1029 | Diag(Tok.getLocation(), diag::err_friend_decl_defines_class) |
| 1030 | << SourceRange(DS.getFriendSpecLoc()); |
| 1031 | |
| 1032 | // Skip everything up to the semicolon, so that this looks like a proper |
| 1033 | // friend class (or template thereof) declaration. |
| 1034 | SkipUntil(tok::semi, true, true); |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 1035 | TUK = Sema::TUK_Friend; |
Douglas Gregor | d85bea2 | 2009-09-26 06:47:28 +0000 | [diff] [blame] | 1036 | } else { |
| 1037 | // Okay, this is a class definition. |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 1038 | TUK = Sema::TUK_Definition; |
Douglas Gregor | d85bea2 | 2009-09-26 06:47:28 +0000 | [diff] [blame] | 1039 | } |
| 1040 | } else if (Tok.is(tok::semi)) |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 1041 | TUK = DS.isFriendSpecified() ? Sema::TUK_Friend : Sema::TUK_Declaration; |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 1042 | else |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 1043 | TUK = Sema::TUK_Reference; |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 1044 | |
John McCall | 207014e | 2010-07-30 06:26:29 +0000 | [diff] [blame] | 1045 | if (!Name && !TemplateId && (DS.getTypeSpecType() == DeclSpec::TST_error || |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 1046 | TUK != Sema::TUK_Definition)) { |
John McCall | 207014e | 2010-07-30 06:26:29 +0000 | [diff] [blame] | 1047 | if (DS.getTypeSpecType() != DeclSpec::TST_error) { |
| 1048 | // We have a declaration or reference to an anonymous class. |
| 1049 | Diag(StartLoc, diag::err_anon_type_definition) |
| 1050 | << DeclSpec::getSpecifierName(TagType); |
| 1051 | } |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 1052 | |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 1053 | SkipUntil(tok::comma, true); |
Douglas Gregor | 39a8de1 | 2009-02-25 19:37:18 +0000 | [diff] [blame] | 1054 | |
| 1055 | if (TemplateId) |
| 1056 | TemplateId->Destroy(); |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 1057 | return; |
| 1058 | } |
| 1059 | |
Douglas Gregor | ddc29e1 | 2009-02-06 22:42:48 +0000 | [diff] [blame] | 1060 | // Create the tag portion of the class or class template. |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 1061 | DeclResult TagOrTempResult = true; // invalid |
| 1062 | TypeResult TypeResult = true; // invalid |
Douglas Gregor | 4d9a16f | 2009-05-12 23:25:50 +0000 | [diff] [blame] | 1063 | |
Douglas Gregor | 402abb5 | 2009-05-28 23:31:59 +0000 | [diff] [blame] | 1064 | bool Owned = false; |
John McCall | f1bbbb4 | 2009-09-04 01:14:41 +0000 | [diff] [blame] | 1065 | if (TemplateId) { |
Douglas Gregor | 4d9a16f | 2009-05-12 23:25:50 +0000 | [diff] [blame] | 1066 | // Explicit specialization, class template partial specialization, |
| 1067 | // or explicit instantiation. |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1068 | ASTTemplateArgsPtr TemplateArgsPtr(Actions, |
Douglas Gregor | 39a8de1 | 2009-02-25 19:37:18 +0000 | [diff] [blame] | 1069 | TemplateId->getTemplateArgs(), |
Douglas Gregor | 39a8de1 | 2009-02-25 19:37:18 +0000 | [diff] [blame] | 1070 | TemplateId->NumArgs); |
Douglas Gregor | 4d9a16f | 2009-05-12 23:25:50 +0000 | [diff] [blame] | 1071 | if (TemplateInfo.Kind == ParsedTemplateInfo::ExplicitInstantiation && |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 1072 | TUK == Sema::TUK_Declaration) { |
Douglas Gregor | 4d9a16f | 2009-05-12 23:25:50 +0000 | [diff] [blame] | 1073 | // This is an explicit instantiation of a class template. |
| 1074 | TagOrTempResult |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 1075 | = Actions.ActOnExplicitInstantiation(getCurScope(), |
Douglas Gregor | 45f9655 | 2009-09-04 06:33:52 +0000 | [diff] [blame] | 1076 | TemplateInfo.ExternLoc, |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1077 | TemplateInfo.TemplateLoc, |
Douglas Gregor | 4d9a16f | 2009-05-12 23:25:50 +0000 | [diff] [blame] | 1078 | TagType, |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1079 | StartLoc, |
Douglas Gregor | 4d9a16f | 2009-05-12 23:25:50 +0000 | [diff] [blame] | 1080 | SS, |
John McCall | 2b5289b | 2010-08-23 07:28:44 +0000 | [diff] [blame] | 1081 | TemplateId->Template, |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1082 | TemplateId->TemplateNameLoc, |
| 1083 | TemplateId->LAngleLoc, |
Douglas Gregor | 4d9a16f | 2009-05-12 23:25:50 +0000 | [diff] [blame] | 1084 | TemplateArgsPtr, |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1085 | TemplateId->RAngleLoc, |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 1086 | attrs.getList()); |
John McCall | 74256f5 | 2010-04-14 00:24:33 +0000 | [diff] [blame] | 1087 | |
| 1088 | // Friend template-ids are treated as references unless |
| 1089 | // they have template headers, in which case they're ill-formed |
| 1090 | // (FIXME: "template <class T> friend class A<T>::B<int>;"). |
| 1091 | // We diagnose this error in ActOnClassTemplateSpecialization. |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 1092 | } else if (TUK == Sema::TUK_Reference || |
| 1093 | (TUK == Sema::TUK_Friend && |
John McCall | 74256f5 | 2010-04-14 00:24:33 +0000 | [diff] [blame] | 1094 | TemplateInfo.Kind == ParsedTemplateInfo::NonTemplate)) { |
Douglas Gregor | 059101f | 2011-03-02 00:47:37 +0000 | [diff] [blame] | 1095 | TypeResult = Actions.ActOnTagTemplateIdType(TUK, TagType, |
| 1096 | StartLoc, |
| 1097 | TemplateId->SS, |
| 1098 | TemplateId->Template, |
| 1099 | TemplateId->TemplateNameLoc, |
| 1100 | TemplateId->LAngleLoc, |
| 1101 | TemplateArgsPtr, |
| 1102 | TemplateId->RAngleLoc); |
Douglas Gregor | 4d9a16f | 2009-05-12 23:25:50 +0000 | [diff] [blame] | 1103 | } else { |
| 1104 | // This is an explicit specialization or a class template |
| 1105 | // partial specialization. |
| 1106 | TemplateParameterLists FakedParamLists; |
| 1107 | |
| 1108 | if (TemplateInfo.Kind == ParsedTemplateInfo::ExplicitInstantiation) { |
| 1109 | // This looks like an explicit instantiation, because we have |
| 1110 | // something like |
| 1111 | // |
| 1112 | // template class Foo<X> |
| 1113 | // |
Douglas Gregor | 3f5b61c | 2009-05-14 00:28:11 +0000 | [diff] [blame] | 1114 | // but it actually has a definition. Most likely, this was |
Douglas Gregor | 4d9a16f | 2009-05-12 23:25:50 +0000 | [diff] [blame] | 1115 | // meant to be an explicit specialization, but the user forgot |
| 1116 | // the '<>' after 'template'. |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 1117 | assert(TUK == Sema::TUK_Definition && "Expected a definition here"); |
Douglas Gregor | 4d9a16f | 2009-05-12 23:25:50 +0000 | [diff] [blame] | 1118 | |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1119 | SourceLocation LAngleLoc |
Douglas Gregor | 4d9a16f | 2009-05-12 23:25:50 +0000 | [diff] [blame] | 1120 | = PP.getLocForEndOfToken(TemplateInfo.TemplateLoc); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1121 | Diag(TemplateId->TemplateNameLoc, |
Douglas Gregor | 4d9a16f | 2009-05-12 23:25:50 +0000 | [diff] [blame] | 1122 | diag::err_explicit_instantiation_with_definition) |
| 1123 | << SourceRange(TemplateInfo.TemplateLoc) |
Douglas Gregor | 849b243 | 2010-03-31 17:46:05 +0000 | [diff] [blame] | 1124 | << FixItHint::CreateInsertion(LAngleLoc, "<>"); |
Douglas Gregor | 4d9a16f | 2009-05-12 23:25:50 +0000 | [diff] [blame] | 1125 | |
| 1126 | // Create a fake template parameter list that contains only |
| 1127 | // "template<>", so that we treat this construct as a class |
| 1128 | // template specialization. |
| 1129 | FakedParamLists.push_back( |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1130 | Actions.ActOnTemplateParameterList(0, SourceLocation(), |
Douglas Gregor | 4d9a16f | 2009-05-12 23:25:50 +0000 | [diff] [blame] | 1131 | TemplateInfo.TemplateLoc, |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1132 | LAngleLoc, |
| 1133 | 0, 0, |
Douglas Gregor | 4d9a16f | 2009-05-12 23:25:50 +0000 | [diff] [blame] | 1134 | LAngleLoc)); |
| 1135 | TemplateParams = &FakedParamLists; |
| 1136 | } |
| 1137 | |
| 1138 | // Build the class template specialization. |
| 1139 | TagOrTempResult |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 1140 | = Actions.ActOnClassTemplateSpecialization(getCurScope(), TagType, TUK, |
Douglas Gregor | 39a8de1 | 2009-02-25 19:37:18 +0000 | [diff] [blame] | 1141 | StartLoc, SS, |
John McCall | 2b5289b | 2010-08-23 07:28:44 +0000 | [diff] [blame] | 1142 | TemplateId->Template, |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1143 | TemplateId->TemplateNameLoc, |
| 1144 | TemplateId->LAngleLoc, |
Douglas Gregor | 39a8de1 | 2009-02-25 19:37:18 +0000 | [diff] [blame] | 1145 | TemplateArgsPtr, |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1146 | TemplateId->RAngleLoc, |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 1147 | attrs.getList(), |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 1148 | MultiTemplateParamsArg(Actions, |
Douglas Gregor | cc63668 | 2009-02-17 23:15:12 +0000 | [diff] [blame] | 1149 | TemplateParams? &(*TemplateParams)[0] : 0, |
| 1150 | TemplateParams? TemplateParams->size() : 0)); |
Douglas Gregor | 4d9a16f | 2009-05-12 23:25:50 +0000 | [diff] [blame] | 1151 | } |
Douglas Gregor | 39a8de1 | 2009-02-25 19:37:18 +0000 | [diff] [blame] | 1152 | TemplateId->Destroy(); |
Douglas Gregor | 3f5b61c | 2009-05-14 00:28:11 +0000 | [diff] [blame] | 1153 | } else if (TemplateInfo.Kind == ParsedTemplateInfo::ExplicitInstantiation && |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 1154 | TUK == Sema::TUK_Declaration) { |
Douglas Gregor | 3f5b61c | 2009-05-14 00:28:11 +0000 | [diff] [blame] | 1155 | // Explicit instantiation of a member of a class template |
| 1156 | // specialization, e.g., |
| 1157 | // |
| 1158 | // template struct Outer<int>::Inner; |
| 1159 | // |
| 1160 | TagOrTempResult |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 1161 | = Actions.ActOnExplicitInstantiation(getCurScope(), |
Douglas Gregor | 45f9655 | 2009-09-04 06:33:52 +0000 | [diff] [blame] | 1162 | TemplateInfo.ExternLoc, |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1163 | TemplateInfo.TemplateLoc, |
| 1164 | TagType, StartLoc, SS, Name, |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 1165 | NameLoc, attrs.getList()); |
John McCall | 9a34edb | 2010-10-19 01:40:49 +0000 | [diff] [blame] | 1166 | } else if (TUK == Sema::TUK_Friend && |
| 1167 | TemplateInfo.Kind != ParsedTemplateInfo::NonTemplate) { |
| 1168 | TagOrTempResult = |
| 1169 | Actions.ActOnTemplatedFriendTag(getCurScope(), DS.getFriendSpecLoc(), |
| 1170 | TagType, StartLoc, SS, |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 1171 | Name, NameLoc, attrs.getList(), |
John McCall | 9a34edb | 2010-10-19 01:40:49 +0000 | [diff] [blame] | 1172 | MultiTemplateParamsArg(Actions, |
| 1173 | TemplateParams? &(*TemplateParams)[0] : 0, |
| 1174 | TemplateParams? TemplateParams->size() : 0)); |
Douglas Gregor | 3f5b61c | 2009-05-14 00:28:11 +0000 | [diff] [blame] | 1175 | } else { |
| 1176 | if (TemplateInfo.Kind == ParsedTemplateInfo::ExplicitInstantiation && |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 1177 | TUK == Sema::TUK_Definition) { |
Douglas Gregor | 3f5b61c | 2009-05-14 00:28:11 +0000 | [diff] [blame] | 1178 | // FIXME: Diagnose this particular error. |
| 1179 | } |
| 1180 | |
John McCall | c4e7019 | 2009-09-11 04:59:25 +0000 | [diff] [blame] | 1181 | bool IsDependent = false; |
| 1182 | |
John McCall | a25c408 | 2010-10-19 18:40:57 +0000 | [diff] [blame] | 1183 | // Don't pass down template parameter lists if this is just a tag |
| 1184 | // reference. For example, we don't need the template parameters here: |
| 1185 | // template <class T> class A *makeA(T t); |
| 1186 | MultiTemplateParamsArg TParams; |
| 1187 | if (TUK != Sema::TUK_Reference && TemplateParams) |
| 1188 | TParams = |
| 1189 | MultiTemplateParamsArg(&(*TemplateParams)[0], TemplateParams->size()); |
| 1190 | |
Douglas Gregor | 3f5b61c | 2009-05-14 00:28:11 +0000 | [diff] [blame] | 1191 | // Declaration or definition of a class type |
John McCall | 9a34edb | 2010-10-19 01:40:49 +0000 | [diff] [blame] | 1192 | TagOrTempResult = Actions.ActOnTag(getCurScope(), TagType, TUK, StartLoc, |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 1193 | SS, Name, NameLoc, attrs.getList(), AS, |
John McCall | a25c408 | 2010-10-19 18:40:57 +0000 | [diff] [blame] | 1194 | TParams, Owned, IsDependent, false, |
Abramo Bagnara | a88cefd | 2010-12-03 18:54:17 +0000 | [diff] [blame] | 1195 | false, clang::TypeResult()); |
John McCall | c4e7019 | 2009-09-11 04:59:25 +0000 | [diff] [blame] | 1196 | |
| 1197 | // If ActOnTag said the type was dependent, try again with the |
| 1198 | // less common call. |
John McCall | 9a34edb | 2010-10-19 01:40:49 +0000 | [diff] [blame] | 1199 | if (IsDependent) { |
| 1200 | assert(TUK == Sema::TUK_Reference || TUK == Sema::TUK_Friend); |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 1201 | TypeResult = Actions.ActOnDependentTag(getCurScope(), TagType, TUK, |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 1202 | SS, Name, StartLoc, NameLoc); |
John McCall | 9a34edb | 2010-10-19 01:40:49 +0000 | [diff] [blame] | 1203 | } |
Douglas Gregor | 3f5b61c | 2009-05-14 00:28:11 +0000 | [diff] [blame] | 1204 | } |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 1205 | |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 1206 | // If there is a body, parse it and inform the actions module. |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 1207 | if (TUK == Sema::TUK_Definition) { |
John McCall | bd0dfa5 | 2009-12-19 21:48:58 +0000 | [diff] [blame] | 1208 | assert(Tok.is(tok::l_brace) || |
Anders Carlsson | cc54d59 | 2011-01-22 16:56:46 +0000 | [diff] [blame] | 1209 | (getLang().CPlusPlus && Tok.is(tok::colon)) || |
Anders Carlsson | 8a29ba0 | 2011-03-25 14:53:29 +0000 | [diff] [blame] | 1210 | isCXX0XFinalKeyword()); |
Argyrios Kyrtzidis | 0795232 | 2008-07-01 10:37:29 +0000 | [diff] [blame] | 1211 | if (getLang().CPlusPlus) |
Douglas Gregor | 212e81c | 2009-03-25 00:13:59 +0000 | [diff] [blame] | 1212 | ParseCXXMemberSpecification(StartLoc, TagType, TagOrTempResult.get()); |
Argyrios Kyrtzidis | 0795232 | 2008-07-01 10:37:29 +0000 | [diff] [blame] | 1213 | else |
Douglas Gregor | 212e81c | 2009-03-25 00:13:59 +0000 | [diff] [blame] | 1214 | ParseStructUnionBody(StartLoc, TagType, TagOrTempResult.get()); |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 1215 | } |
| 1216 | |
John McCall | b3d8748 | 2010-08-24 05:47:05 +0000 | [diff] [blame] | 1217 | const char *PrevSpec = 0; |
| 1218 | unsigned DiagID; |
| 1219 | bool Result; |
John McCall | c4e7019 | 2009-09-11 04:59:25 +0000 | [diff] [blame] | 1220 | if (!TypeResult.isInvalid()) { |
Abramo Bagnara | 0daaf32 | 2011-03-16 20:16:18 +0000 | [diff] [blame] | 1221 | Result = DS.SetTypeSpecType(DeclSpec::TST_typename, StartLoc, |
| 1222 | NameLoc.isValid() ? NameLoc : StartLoc, |
John McCall | b3d8748 | 2010-08-24 05:47:05 +0000 | [diff] [blame] | 1223 | PrevSpec, DiagID, TypeResult.get()); |
John McCall | c4e7019 | 2009-09-11 04:59:25 +0000 | [diff] [blame] | 1224 | } else if (!TagOrTempResult.isInvalid()) { |
Abramo Bagnara | 0daaf32 | 2011-03-16 20:16:18 +0000 | [diff] [blame] | 1225 | Result = DS.SetTypeSpecType(TagType, StartLoc, |
| 1226 | NameLoc.isValid() ? NameLoc : StartLoc, |
| 1227 | PrevSpec, DiagID, TagOrTempResult.get(), Owned); |
John McCall | c4e7019 | 2009-09-11 04:59:25 +0000 | [diff] [blame] | 1228 | } else { |
Douglas Gregor | ddc29e1 | 2009-02-06 22:42:48 +0000 | [diff] [blame] | 1229 | DS.SetTypeSpecError(); |
Anders Carlsson | 66e9977 | 2009-05-11 22:27:47 +0000 | [diff] [blame] | 1230 | return; |
| 1231 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1232 | |
John McCall | b3d8748 | 2010-08-24 05:47:05 +0000 | [diff] [blame] | 1233 | if (Result) |
John McCall | fec5401 | 2009-08-03 20:12:06 +0000 | [diff] [blame] | 1234 | Diag(StartLoc, DiagID) << PrevSpec; |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 1235 | |
Chris Lattner | 4ed5d91 | 2010-02-02 01:23:29 +0000 | [diff] [blame] | 1236 | // At this point, we've successfully parsed a class-specifier in 'definition' |
| 1237 | // form (e.g. "struct foo { int x; }". While we could just return here, we're |
| 1238 | // going to look at what comes after it to improve error recovery. If an |
| 1239 | // impossible token occurs next, we assume that the programmer forgot a ; at |
| 1240 | // the end of the declaration and recover that way. |
| 1241 | // |
| 1242 | // This switch enumerates the valid "follow" set for definition. |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 1243 | if (TUK == Sema::TUK_Definition) { |
Chris Lattner | b3a4e43 | 2010-02-28 18:18:36 +0000 | [diff] [blame] | 1244 | bool ExpectedSemi = true; |
Chris Lattner | 4ed5d91 | 2010-02-02 01:23:29 +0000 | [diff] [blame] | 1245 | switch (Tok.getKind()) { |
Chris Lattner | b3a4e43 | 2010-02-28 18:18:36 +0000 | [diff] [blame] | 1246 | default: break; |
Chris Lattner | 4ed5d91 | 2010-02-02 01:23:29 +0000 | [diff] [blame] | 1247 | case tok::semi: // struct foo {...} ; |
Chris Lattner | 99c9520 | 2010-02-02 17:32:27 +0000 | [diff] [blame] | 1248 | case tok::star: // struct foo {...} * P; |
| 1249 | case tok::amp: // struct foo {...} & R = ... |
| 1250 | case tok::identifier: // struct foo {...} V ; |
| 1251 | case tok::r_paren: //(struct foo {...} ) {4} |
| 1252 | case tok::annot_cxxscope: // struct foo {...} a:: b; |
| 1253 | case tok::annot_typename: // struct foo {...} a ::b; |
| 1254 | case tok::annot_template_id: // struct foo {...} a<int> ::b; |
Chris Lattner | c2e1c1a | 2010-02-03 20:41:24 +0000 | [diff] [blame] | 1255 | case tok::l_paren: // struct foo {...} ( x); |
Chris Lattner | 16acfee | 2010-02-03 01:45:03 +0000 | [diff] [blame] | 1256 | case tok::comma: // __builtin_offsetof(struct foo{...} , |
Chris Lattner | b3a4e43 | 2010-02-28 18:18:36 +0000 | [diff] [blame] | 1257 | ExpectedSemi = false; |
| 1258 | break; |
| 1259 | // Type qualifiers |
| 1260 | case tok::kw_const: // struct foo {...} const x; |
| 1261 | case tok::kw_volatile: // struct foo {...} volatile x; |
| 1262 | case tok::kw_restrict: // struct foo {...} restrict x; |
| 1263 | case tok::kw_inline: // struct foo {...} inline foo() {}; |
Chris Lattner | 99c9520 | 2010-02-02 17:32:27 +0000 | [diff] [blame] | 1264 | // Storage-class specifiers |
| 1265 | case tok::kw_static: // struct foo {...} static x; |
| 1266 | case tok::kw_extern: // struct foo {...} extern x; |
| 1267 | case tok::kw_typedef: // struct foo {...} typedef x; |
| 1268 | case tok::kw_register: // struct foo {...} register x; |
| 1269 | case tok::kw_auto: // struct foo {...} auto x; |
Douglas Gregor | 33f9924 | 2010-05-17 18:19:56 +0000 | [diff] [blame] | 1270 | case tok::kw_mutable: // struct foo {...} mutable x; |
Chris Lattner | b3a4e43 | 2010-02-28 18:18:36 +0000 | [diff] [blame] | 1271 | // As shown above, type qualifiers and storage class specifiers absolutely |
| 1272 | // can occur after class specifiers according to the grammar. However, |
Chris Lattner | fc8f0e1 | 2011-04-15 05:22:18 +0000 | [diff] [blame] | 1273 | // 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] | 1274 | // it is much more likely that someone missed a semi colon and the |
| 1275 | // type/storage class specifier we're seeing is part of the *next* |
| 1276 | // intended declaration, as in: |
| 1277 | // |
| 1278 | // struct foo { ... } |
| 1279 | // typedef int X; |
| 1280 | // |
| 1281 | // We'd really like to emit a missing semicolon error instead of emitting |
| 1282 | // an error on the 'int' saying that you can't have two type specifiers in |
| 1283 | // the same declaration of X. Because of this, we look ahead past this |
| 1284 | // token to see if it's a type specifier. If so, we know the code is |
| 1285 | // otherwise invalid, so we can produce the expected semi error. |
| 1286 | if (!isKnownToBeTypeSpecifier(NextToken())) |
| 1287 | ExpectedSemi = false; |
Chris Lattner | 4ed5d91 | 2010-02-02 01:23:29 +0000 | [diff] [blame] | 1288 | break; |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 1289 | |
| 1290 | case tok::r_brace: // struct bar { struct foo {...} } |
Chris Lattner | 4ed5d91 | 2010-02-02 01:23:29 +0000 | [diff] [blame] | 1291 | // 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] | 1292 | if (!getLang().CPlusPlus) |
| 1293 | ExpectedSemi = false; |
| 1294 | break; |
| 1295 | } |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 1296 | |
Chris Lattner | b3a4e43 | 2010-02-28 18:18:36 +0000 | [diff] [blame] | 1297 | if (ExpectedSemi) { |
Chris Lattner | 4ed5d91 | 2010-02-02 01:23:29 +0000 | [diff] [blame] | 1298 | ExpectAndConsume(tok::semi, diag::err_expected_semi_after_tagdecl, |
| 1299 | TagType == DeclSpec::TST_class ? "class" |
| 1300 | : TagType == DeclSpec::TST_struct? "struct" : "union"); |
| 1301 | // Push this token back into the preprocessor and change our current token |
| 1302 | // to ';' so that the rest of the code recovers as though there were an |
| 1303 | // ';' after the definition. |
| 1304 | PP.EnterToken(Tok); |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 1305 | Tok.setKind(tok::semi); |
Chris Lattner | 4ed5d91 | 2010-02-02 01:23:29 +0000 | [diff] [blame] | 1306 | } |
| 1307 | } |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 1308 | } |
| 1309 | |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1310 | /// ParseBaseClause - Parse the base-clause of a C++ class [C++ class.derived]. |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 1311 | /// |
| 1312 | /// base-clause : [C++ class.derived] |
| 1313 | /// ':' base-specifier-list |
| 1314 | /// base-specifier-list: |
| 1315 | /// base-specifier '...'[opt] |
| 1316 | /// base-specifier-list ',' base-specifier '...'[opt] |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 1317 | void Parser::ParseBaseClause(Decl *ClassDecl) { |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 1318 | assert(Tok.is(tok::colon) && "Not a base clause"); |
| 1319 | ConsumeToken(); |
| 1320 | |
Douglas Gregor | f8268ae | 2008-10-22 17:49:05 +0000 | [diff] [blame] | 1321 | // Build up an array of parsed base specifiers. |
John McCall | ca0408f | 2010-08-23 06:44:23 +0000 | [diff] [blame] | 1322 | llvm::SmallVector<CXXBaseSpecifier *, 8> BaseInfo; |
Douglas Gregor | f8268ae | 2008-10-22 17:49:05 +0000 | [diff] [blame] | 1323 | |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 1324 | while (true) { |
| 1325 | // Parse a base-specifier. |
Douglas Gregor | f8268ae | 2008-10-22 17:49:05 +0000 | [diff] [blame] | 1326 | BaseResult Result = ParseBaseSpecifier(ClassDecl); |
Douglas Gregor | 5ac8aff | 2009-01-26 22:44:13 +0000 | [diff] [blame] | 1327 | if (Result.isInvalid()) { |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 1328 | // Skip the rest of this base specifier, up until the comma or |
| 1329 | // opening brace. |
Douglas Gregor | f8268ae | 2008-10-22 17:49:05 +0000 | [diff] [blame] | 1330 | SkipUntil(tok::comma, tok::l_brace, true, true); |
| 1331 | } else { |
| 1332 | // Add this to our array of base specifiers. |
Douglas Gregor | 5ac8aff | 2009-01-26 22:44:13 +0000 | [diff] [blame] | 1333 | BaseInfo.push_back(Result.get()); |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 1334 | } |
| 1335 | |
| 1336 | // If the next token is a comma, consume it and keep reading |
| 1337 | // base-specifiers. |
| 1338 | if (Tok.isNot(tok::comma)) break; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1339 | |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 1340 | // Consume the comma. |
| 1341 | ConsumeToken(); |
| 1342 | } |
Douglas Gregor | f8268ae | 2008-10-22 17:49:05 +0000 | [diff] [blame] | 1343 | |
| 1344 | // Attach the base specifiers |
Jay Foad | beaaccd | 2009-05-21 09:52:38 +0000 | [diff] [blame] | 1345 | Actions.ActOnBaseSpecifiers(ClassDecl, BaseInfo.data(), BaseInfo.size()); |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 1346 | } |
| 1347 | |
| 1348 | /// ParseBaseSpecifier - Parse a C++ base-specifier. A base-specifier is |
| 1349 | /// one entry in the base class list of a class specifier, for example: |
| 1350 | /// class foo : public bar, virtual private baz { |
| 1351 | /// 'public bar' and 'virtual private baz' are each base-specifiers. |
| 1352 | /// |
| 1353 | /// base-specifier: [C++ class.derived] |
| 1354 | /// ::[opt] nested-name-specifier[opt] class-name |
| 1355 | /// 'virtual' access-specifier[opt] ::[opt] nested-name-specifier[opt] |
| 1356 | /// class-name |
| 1357 | /// access-specifier 'virtual'[opt] ::[opt] nested-name-specifier[opt] |
| 1358 | /// class-name |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 1359 | Parser::BaseResult Parser::ParseBaseSpecifier(Decl *ClassDecl) { |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 1360 | bool IsVirtual = false; |
| 1361 | SourceLocation StartLoc = Tok.getLocation(); |
| 1362 | |
| 1363 | // Parse the 'virtual' keyword. |
| 1364 | if (Tok.is(tok::kw_virtual)) { |
| 1365 | ConsumeToken(); |
| 1366 | IsVirtual = true; |
| 1367 | } |
| 1368 | |
| 1369 | // Parse an (optional) access specifier. |
| 1370 | AccessSpecifier Access = getAccessSpecifierIfPresent(); |
John McCall | 92f8831 | 2010-01-23 00:46:32 +0000 | [diff] [blame] | 1371 | if (Access != AS_none) |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 1372 | ConsumeToken(); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1373 | |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 1374 | // Parse the 'virtual' keyword (again!), in case it came after the |
| 1375 | // access specifier. |
| 1376 | if (Tok.is(tok::kw_virtual)) { |
| 1377 | SourceLocation VirtualLoc = ConsumeToken(); |
| 1378 | if (IsVirtual) { |
| 1379 | // Complain about duplicate 'virtual' |
Chris Lattner | 1ab3b96 | 2008-11-18 07:48:38 +0000 | [diff] [blame] | 1380 | Diag(VirtualLoc, diag::err_dup_virtual) |
Douglas Gregor | 849b243 | 2010-03-31 17:46:05 +0000 | [diff] [blame] | 1381 | << FixItHint::CreateRemoval(VirtualLoc); |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 1382 | } |
| 1383 | |
| 1384 | IsVirtual = true; |
| 1385 | } |
| 1386 | |
Argyrios Kyrtzidis | eb83ecd | 2008-11-08 16:45:02 +0000 | [diff] [blame] | 1387 | // Parse optional '::' and optional nested-name-specifier. |
| 1388 | CXXScopeSpec SS; |
John McCall | b3d8748 | 2010-08-24 05:47:05 +0000 | [diff] [blame] | 1389 | ParseOptionalCXXScopeSpecifier(SS, ParsedType(), /*EnteringContext=*/false); |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 1390 | |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 1391 | // The location of the base class itself. |
| 1392 | SourceLocation BaseLoc = Tok.getLocation(); |
Douglas Gregor | 42a552f | 2008-11-05 20:51:48 +0000 | [diff] [blame] | 1393 | |
| 1394 | // Parse the class-name. |
Douglas Gregor | 7f43d67 | 2009-02-25 23:52:28 +0000 | [diff] [blame] | 1395 | SourceLocation EndLocation; |
Douglas Gregor | 059101f | 2011-03-02 00:47:37 +0000 | [diff] [blame] | 1396 | TypeResult BaseType = ParseClassName(EndLocation, SS); |
Douglas Gregor | 31a19b6 | 2009-04-01 21:51:26 +0000 | [diff] [blame] | 1397 | if (BaseType.isInvalid()) |
Douglas Gregor | 42a552f | 2008-11-05 20:51:48 +0000 | [diff] [blame] | 1398 | return true; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1399 | |
Douglas Gregor | f90b27a | 2011-01-03 22:36:02 +0000 | [diff] [blame] | 1400 | // Parse the optional ellipsis (for a pack expansion). The ellipsis is |
| 1401 | // actually part of the base-specifier-list grammar productions, but we |
| 1402 | // parse it here for convenience. |
| 1403 | SourceLocation EllipsisLoc; |
| 1404 | if (Tok.is(tok::ellipsis)) |
| 1405 | EllipsisLoc = ConsumeToken(); |
| 1406 | |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1407 | // Find the complete source range for the base-specifier. |
Douglas Gregor | 7f43d67 | 2009-02-25 23:52:28 +0000 | [diff] [blame] | 1408 | SourceRange Range(StartLoc, EndLocation); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1409 | |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 1410 | // Notify semantic analysis that we have parsed a complete |
| 1411 | // base-specifier. |
Sebastian Redl | a55e52c | 2008-11-25 22:21:31 +0000 | [diff] [blame] | 1412 | return Actions.ActOnBaseSpecifier(ClassDecl, Range, IsVirtual, Access, |
Douglas Gregor | f90b27a | 2011-01-03 22:36:02 +0000 | [diff] [blame] | 1413 | BaseType.get(), BaseLoc, EllipsisLoc); |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 1414 | } |
| 1415 | |
| 1416 | /// getAccessSpecifierIfPresent - Determine whether the next token is |
| 1417 | /// a C++ access-specifier. |
| 1418 | /// |
| 1419 | /// access-specifier: [C++ class.derived] |
| 1420 | /// 'private' |
| 1421 | /// 'protected' |
| 1422 | /// 'public' |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1423 | AccessSpecifier Parser::getAccessSpecifierIfPresent() const { |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 1424 | switch (Tok.getKind()) { |
| 1425 | default: return AS_none; |
| 1426 | case tok::kw_private: return AS_private; |
| 1427 | case tok::kw_protected: return AS_protected; |
| 1428 | case tok::kw_public: return AS_public; |
| 1429 | } |
| 1430 | } |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1431 | |
Eli Friedman | d33133c | 2009-07-22 21:45:50 +0000 | [diff] [blame] | 1432 | void Parser::HandleMemberFunctionDefaultArgs(Declarator& DeclaratorInfo, |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 1433 | Decl *ThisDecl) { |
Eli Friedman | d33133c | 2009-07-22 21:45:50 +0000 | [diff] [blame] | 1434 | // We just declared a member function. If this member function |
| 1435 | // has any default arguments, we'll need to parse them later. |
| 1436 | LateParsedMethodDeclaration *LateMethod = 0; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1437 | DeclaratorChunk::FunctionTypeInfo &FTI |
Abramo Bagnara | 075f8f1 | 2010-12-10 16:29:40 +0000 | [diff] [blame] | 1438 | = DeclaratorInfo.getFunctionTypeInfo(); |
Eli Friedman | d33133c | 2009-07-22 21:45:50 +0000 | [diff] [blame] | 1439 | for (unsigned ParamIdx = 0; ParamIdx < FTI.NumArgs; ++ParamIdx) { |
| 1440 | if (LateMethod || FTI.ArgInfo[ParamIdx].DefaultArgTokens) { |
| 1441 | if (!LateMethod) { |
| 1442 | // Push this method onto the stack of late-parsed method |
| 1443 | // declarations. |
Douglas Gregor | d54eb44 | 2010-10-12 16:25:54 +0000 | [diff] [blame] | 1444 | LateMethod = new LateParsedMethodDeclaration(this, ThisDecl); |
| 1445 | getCurrentClass().LateParsedDeclarations.push_back(LateMethod); |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 1446 | LateMethod->TemplateScope = getCurScope()->isTemplateParamScope(); |
Eli Friedman | d33133c | 2009-07-22 21:45:50 +0000 | [diff] [blame] | 1447 | |
| 1448 | // Add all of the parameters prior to this one (they don't |
| 1449 | // have default arguments). |
| 1450 | LateMethod->DefaultArgs.reserve(FTI.NumArgs); |
| 1451 | for (unsigned I = 0; I < ParamIdx; ++I) |
| 1452 | LateMethod->DefaultArgs.push_back( |
Douglas Gregor | 8f8210c | 2010-03-02 01:29:43 +0000 | [diff] [blame] | 1453 | LateParsedDefaultArgument(FTI.ArgInfo[I].Param)); |
Eli Friedman | d33133c | 2009-07-22 21:45:50 +0000 | [diff] [blame] | 1454 | } |
| 1455 | |
| 1456 | // Add this parameter to the list of parameters (it or may |
| 1457 | // not have a default argument). |
| 1458 | LateMethod->DefaultArgs.push_back( |
| 1459 | LateParsedDefaultArgument(FTI.ArgInfo[ParamIdx].Param, |
| 1460 | FTI.ArgInfo[ParamIdx].DefaultArgTokens)); |
| 1461 | } |
| 1462 | } |
| 1463 | } |
| 1464 | |
Anders Carlsson | 1f3b6fd | 2011-01-16 23:56:42 +0000 | [diff] [blame] | 1465 | /// isCXX0XVirtSpecifier - Determine whether the next token is a C++0x |
| 1466 | /// virt-specifier. |
| 1467 | /// |
| 1468 | /// virt-specifier: |
| 1469 | /// override |
| 1470 | /// final |
Anders Carlsson | cc54d59 | 2011-01-22 16:56:46 +0000 | [diff] [blame] | 1471 | VirtSpecifiers::Specifier Parser::isCXX0XVirtSpecifier() const { |
Anders Carlsson | ce93a7c | 2011-01-22 23:01:49 +0000 | [diff] [blame] | 1472 | if (!getLang().CPlusPlus) |
Anders Carlsson | cc54d59 | 2011-01-22 16:56:46 +0000 | [diff] [blame] | 1473 | return VirtSpecifiers::VS_None; |
| 1474 | |
Anders Carlsson | b971dbd | 2011-01-17 03:05:47 +0000 | [diff] [blame] | 1475 | if (Tok.is(tok::identifier)) { |
| 1476 | IdentifierInfo *II = Tok.getIdentifierInfo(); |
Anders Carlsson | 1f3b6fd | 2011-01-16 23:56:42 +0000 | [diff] [blame] | 1477 | |
Anders Carlsson | 7eeb4ec | 2011-01-20 03:47:08 +0000 | [diff] [blame] | 1478 | // Initialize the contextual keywords. |
| 1479 | if (!Ident_final) { |
| 1480 | Ident_final = &PP.getIdentifierTable().get("final"); |
| 1481 | Ident_override = &PP.getIdentifierTable().get("override"); |
| 1482 | } |
| 1483 | |
Anders Carlsson | b971dbd | 2011-01-17 03:05:47 +0000 | [diff] [blame] | 1484 | if (II == Ident_override) |
| 1485 | return VirtSpecifiers::VS_Override; |
| 1486 | |
| 1487 | if (II == Ident_final) |
| 1488 | return VirtSpecifiers::VS_Final; |
| 1489 | } |
| 1490 | |
| 1491 | return VirtSpecifiers::VS_None; |
Anders Carlsson | 1f3b6fd | 2011-01-16 23:56:42 +0000 | [diff] [blame] | 1492 | } |
| 1493 | |
| 1494 | /// ParseOptionalCXX0XVirtSpecifierSeq - Parse a virt-specifier-seq. |
| 1495 | /// |
| 1496 | /// virt-specifier-seq: |
| 1497 | /// virt-specifier |
| 1498 | /// virt-specifier-seq virt-specifier |
Anders Carlsson | b971dbd | 2011-01-17 03:05:47 +0000 | [diff] [blame] | 1499 | void Parser::ParseOptionalCXX0XVirtSpecifierSeq(VirtSpecifiers &VS) { |
Anders Carlsson | b971dbd | 2011-01-17 03:05:47 +0000 | [diff] [blame] | 1500 | while (true) { |
Anders Carlsson | cc54d59 | 2011-01-22 16:56:46 +0000 | [diff] [blame] | 1501 | VirtSpecifiers::Specifier Specifier = isCXX0XVirtSpecifier(); |
Anders Carlsson | b971dbd | 2011-01-17 03:05:47 +0000 | [diff] [blame] | 1502 | if (Specifier == VirtSpecifiers::VS_None) |
| 1503 | return; |
| 1504 | |
| 1505 | // C++ [class.mem]p8: |
| 1506 | // 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] | 1507 | const char *PrevSpec = 0; |
Anders Carlsson | 46127a9 | 2011-01-22 15:58:16 +0000 | [diff] [blame] | 1508 | if (VS.SetSpecifier(Specifier, Tok.getLocation(), PrevSpec)) |
Anders Carlsson | b971dbd | 2011-01-17 03:05:47 +0000 | [diff] [blame] | 1509 | Diag(Tok.getLocation(), diag::err_duplicate_virt_specifier) |
| 1510 | << PrevSpec |
| 1511 | << FixItHint::CreateRemoval(Tok.getLocation()); |
| 1512 | |
Anders Carlsson | ce93a7c | 2011-01-22 23:01:49 +0000 | [diff] [blame] | 1513 | if (!getLang().CPlusPlus0x) |
| 1514 | Diag(Tok.getLocation(), diag::ext_override_control_keyword) |
| 1515 | << VirtSpecifiers::getSpecifierName(Specifier); |
Anders Carlsson | b971dbd | 2011-01-17 03:05:47 +0000 | [diff] [blame] | 1516 | ConsumeToken(); |
| 1517 | } |
Anders Carlsson | 1f3b6fd | 2011-01-16 23:56:42 +0000 | [diff] [blame] | 1518 | } |
| 1519 | |
Anders Carlsson | 8a29ba0 | 2011-03-25 14:53:29 +0000 | [diff] [blame] | 1520 | /// isCXX0XFinalKeyword - Determine whether the next token is a C++0x |
| 1521 | /// contextual 'final' keyword. |
| 1522 | bool Parser::isCXX0XFinalKeyword() const { |
Anders Carlsson | ce93a7c | 2011-01-22 23:01:49 +0000 | [diff] [blame] | 1523 | if (!getLang().CPlusPlus) |
Anders Carlsson | 8a29ba0 | 2011-03-25 14:53:29 +0000 | [diff] [blame] | 1524 | return false; |
Anders Carlsson | cc54d59 | 2011-01-22 16:56:46 +0000 | [diff] [blame] | 1525 | |
Anders Carlsson | 8a29ba0 | 2011-03-25 14:53:29 +0000 | [diff] [blame] | 1526 | if (!Tok.is(tok::identifier)) |
| 1527 | return false; |
Anders Carlsson | cc54d59 | 2011-01-22 16:56:46 +0000 | [diff] [blame] | 1528 | |
Anders Carlsson | 8a29ba0 | 2011-03-25 14:53:29 +0000 | [diff] [blame] | 1529 | // Initialize the contextual keywords. |
| 1530 | if (!Ident_final) { |
| 1531 | Ident_final = &PP.getIdentifierTable().get("final"); |
| 1532 | Ident_override = &PP.getIdentifierTable().get("override"); |
| 1533 | } |
Anders Carlsson | cc54d59 | 2011-01-22 16:56:46 +0000 | [diff] [blame] | 1534 | |
Anders Carlsson | 8a29ba0 | 2011-03-25 14:53:29 +0000 | [diff] [blame] | 1535 | return Tok.getIdentifierInfo() == Ident_final; |
Anders Carlsson | cc54d59 | 2011-01-22 16:56:46 +0000 | [diff] [blame] | 1536 | } |
| 1537 | |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1538 | /// ParseCXXClassMemberDeclaration - Parse a C++ class member declaration. |
| 1539 | /// |
| 1540 | /// member-declaration: |
| 1541 | /// decl-specifier-seq[opt] member-declarator-list[opt] ';' |
| 1542 | /// function-definition ';'[opt] |
| 1543 | /// ::[opt] nested-name-specifier template[opt] unqualified-id ';'[TODO] |
| 1544 | /// using-declaration [TODO] |
Anders Carlsson | 511d7ab | 2009-03-11 16:27:10 +0000 | [diff] [blame] | 1545 | /// [C++0x] static_assert-declaration |
Anders Carlsson | 5aeccdb | 2009-03-26 00:52:18 +0000 | [diff] [blame] | 1546 | /// template-declaration |
Chris Lattner | bc8d564 | 2008-12-18 01:12:00 +0000 | [diff] [blame] | 1547 | /// [GNU] '__extension__' member-declaration |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1548 | /// |
| 1549 | /// member-declarator-list: |
| 1550 | /// member-declarator |
| 1551 | /// member-declarator-list ',' member-declarator |
| 1552 | /// |
| 1553 | /// member-declarator: |
Anders Carlsson | 1f3b6fd | 2011-01-16 23:56:42 +0000 | [diff] [blame] | 1554 | /// declarator virt-specifier-seq[opt] pure-specifier[opt] |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1555 | /// declarator constant-initializer[opt] |
Richard Smith | 7a614d8 | 2011-06-11 17:19:42 +0000 | [diff] [blame^] | 1556 | /// [C++11] declarator brace-or-equal-initializer[opt] |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1557 | /// identifier[opt] ':' constant-expression |
| 1558 | /// |
Anders Carlsson | 1f3b6fd | 2011-01-16 23:56:42 +0000 | [diff] [blame] | 1559 | /// virt-specifier-seq: |
| 1560 | /// virt-specifier |
| 1561 | /// virt-specifier-seq virt-specifier |
| 1562 | /// |
| 1563 | /// virt-specifier: |
| 1564 | /// override |
| 1565 | /// final |
| 1566 | /// new |
| 1567 | /// |
Sebastian Redl | e2b6833 | 2009-04-12 17:16:29 +0000 | [diff] [blame] | 1568 | /// pure-specifier: |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1569 | /// '= 0' |
| 1570 | /// |
| 1571 | /// constant-initializer: |
| 1572 | /// '=' constant-expression |
| 1573 | /// |
Douglas Gregor | 37b372b | 2009-08-20 22:52:58 +0000 | [diff] [blame] | 1574 | void Parser::ParseCXXClassMemberDeclaration(AccessSpecifier AS, |
John McCall | c9068d7 | 2010-07-16 08:13:16 +0000 | [diff] [blame] | 1575 | const ParsedTemplateInfo &TemplateInfo, |
| 1576 | ParsingDeclRAIIObject *TemplateDiags) { |
Douglas Gregor | 8a9013d | 2011-04-14 17:21:19 +0000 | [diff] [blame] | 1577 | if (Tok.is(tok::at)) { |
| 1578 | if (getLang().ObjC1 && NextToken().isObjCAtKeyword(tok::objc_defs)) |
| 1579 | Diag(Tok, diag::err_at_defs_cxx); |
| 1580 | else |
| 1581 | Diag(Tok, diag::err_at_in_class); |
| 1582 | |
| 1583 | ConsumeToken(); |
| 1584 | SkipUntil(tok::r_brace); |
| 1585 | return; |
| 1586 | } |
| 1587 | |
John McCall | 60fa3cf | 2009-12-11 02:10:03 +0000 | [diff] [blame] | 1588 | // Access declarations. |
| 1589 | if (!TemplateInfo.Kind && |
| 1590 | (Tok.is(tok::identifier) || Tok.is(tok::coloncolon)) && |
John McCall | 9ba6166 | 2010-02-26 08:45:28 +0000 | [diff] [blame] | 1591 | !TryAnnotateCXXScopeToken() && |
John McCall | 60fa3cf | 2009-12-11 02:10:03 +0000 | [diff] [blame] | 1592 | Tok.is(tok::annot_cxxscope)) { |
| 1593 | bool isAccessDecl = false; |
| 1594 | if (NextToken().is(tok::identifier)) |
| 1595 | isAccessDecl = GetLookAheadToken(2).is(tok::semi); |
| 1596 | else |
| 1597 | isAccessDecl = NextToken().is(tok::kw_operator); |
| 1598 | |
| 1599 | if (isAccessDecl) { |
| 1600 | // Collect the scope specifier token we annotated earlier. |
| 1601 | CXXScopeSpec SS; |
John McCall | b3d8748 | 2010-08-24 05:47:05 +0000 | [diff] [blame] | 1602 | ParseOptionalCXXScopeSpecifier(SS, ParsedType(), false); |
John McCall | 60fa3cf | 2009-12-11 02:10:03 +0000 | [diff] [blame] | 1603 | |
| 1604 | // Try to parse an unqualified-id. |
| 1605 | UnqualifiedId Name; |
John McCall | b3d8748 | 2010-08-24 05:47:05 +0000 | [diff] [blame] | 1606 | if (ParseUnqualifiedId(SS, false, true, true, ParsedType(), Name)) { |
John McCall | 60fa3cf | 2009-12-11 02:10:03 +0000 | [diff] [blame] | 1607 | SkipUntil(tok::semi); |
| 1608 | return; |
| 1609 | } |
| 1610 | |
| 1611 | // TODO: recover from mistakenly-qualified operator declarations. |
| 1612 | if (ExpectAndConsume(tok::semi, |
| 1613 | diag::err_expected_semi_after, |
| 1614 | "access declaration", |
| 1615 | tok::semi)) |
| 1616 | return; |
| 1617 | |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 1618 | Actions.ActOnUsingDeclaration(getCurScope(), AS, |
John McCall | 60fa3cf | 2009-12-11 02:10:03 +0000 | [diff] [blame] | 1619 | false, SourceLocation(), |
| 1620 | SS, Name, |
| 1621 | /* AttrList */ 0, |
| 1622 | /* IsTypeName */ false, |
| 1623 | SourceLocation()); |
| 1624 | return; |
| 1625 | } |
| 1626 | } |
| 1627 | |
Anders Carlsson | 511d7ab | 2009-03-11 16:27:10 +0000 | [diff] [blame] | 1628 | // static_assert-declaration |
Peter Collingbourne | c6eb44b | 2011-04-15 00:35:57 +0000 | [diff] [blame] | 1629 | 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] | 1630 | // FIXME: Check for templates |
Chris Lattner | 97144fc | 2009-04-02 04:16:50 +0000 | [diff] [blame] | 1631 | SourceLocation DeclEnd; |
| 1632 | ParseStaticAssertDeclaration(DeclEnd); |
Chris Lattner | 682bf92 | 2009-03-29 16:50:03 +0000 | [diff] [blame] | 1633 | return; |
| 1634 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1635 | |
Chris Lattner | 682bf92 | 2009-03-29 16:50:03 +0000 | [diff] [blame] | 1636 | if (Tok.is(tok::kw_template)) { |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1637 | assert(!TemplateInfo.TemplateParams && |
Douglas Gregor | 37b372b | 2009-08-20 22:52:58 +0000 | [diff] [blame] | 1638 | "Nested template improperly parsed?"); |
Chris Lattner | 97144fc | 2009-04-02 04:16:50 +0000 | [diff] [blame] | 1639 | SourceLocation DeclEnd; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1640 | ParseDeclarationStartingWithTemplate(Declarator::MemberContext, DeclEnd, |
Douglas Gregor | 4d9a16f | 2009-05-12 23:25:50 +0000 | [diff] [blame] | 1641 | AS); |
Chris Lattner | 682bf92 | 2009-03-29 16:50:03 +0000 | [diff] [blame] | 1642 | return; |
| 1643 | } |
Anders Carlsson | 5aeccdb | 2009-03-26 00:52:18 +0000 | [diff] [blame] | 1644 | |
Chris Lattner | bc8d564 | 2008-12-18 01:12:00 +0000 | [diff] [blame] | 1645 | // Handle: member-declaration ::= '__extension__' member-declaration |
| 1646 | if (Tok.is(tok::kw___extension__)) { |
| 1647 | // __extension__ silences extension warnings in the subexpression. |
| 1648 | ExtensionRAIIObject O(Diags); // Use RAII to do this. |
| 1649 | ConsumeToken(); |
John McCall | c9068d7 | 2010-07-16 08:13:16 +0000 | [diff] [blame] | 1650 | return ParseCXXClassMemberDeclaration(AS, TemplateInfo, TemplateDiags); |
Chris Lattner | bc8d564 | 2008-12-18 01:12:00 +0000 | [diff] [blame] | 1651 | } |
Douglas Gregor | 9cfbe48 | 2009-06-20 00:51:54 +0000 | [diff] [blame] | 1652 | |
Chris Lattner | 4ed5d91 | 2010-02-02 01:23:29 +0000 | [diff] [blame] | 1653 | // Don't parse FOO:BAR as if it were a typo for FOO::BAR, in this context it |
| 1654 | // is a bitfield. |
Chris Lattner | a1efc8c | 2009-12-10 01:59:24 +0000 | [diff] [blame] | 1655 | ColonProtectionRAIIObject X(*this); |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 1656 | |
John McCall | 0b7e678 | 2011-03-24 11:26:52 +0000 | [diff] [blame] | 1657 | ParsedAttributesWithRange attrs(AttrFactory); |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 1658 | // Optional C++0x attribute-specifier |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 1659 | MaybeParseCXX0XAttributes(attrs); |
| 1660 | MaybeParseMicrosoftAttributes(attrs); |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 1661 | |
Douglas Gregor | 9cfbe48 | 2009-06-20 00:51:54 +0000 | [diff] [blame] | 1662 | if (Tok.is(tok::kw_using)) { |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 1663 | ProhibitAttributes(attrs); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1664 | |
Douglas Gregor | 9cfbe48 | 2009-06-20 00:51:54 +0000 | [diff] [blame] | 1665 | // Eat 'using'. |
| 1666 | SourceLocation UsingLoc = ConsumeToken(); |
| 1667 | |
| 1668 | if (Tok.is(tok::kw_namespace)) { |
| 1669 | Diag(UsingLoc, diag::err_using_namespace_in_class); |
| 1670 | SkipUntil(tok::semi, true, true); |
Chris Lattner | ae50d50 | 2010-02-02 00:43:15 +0000 | [diff] [blame] | 1671 | } else { |
Douglas Gregor | 9cfbe48 | 2009-06-20 00:51:54 +0000 | [diff] [blame] | 1672 | SourceLocation DeclEnd; |
Richard Smith | 3e4c6c4 | 2011-05-05 21:57:07 +0000 | [diff] [blame] | 1673 | // Otherwise, it must be a using-declaration or an alias-declaration. |
John McCall | 78b8105 | 2010-11-10 02:40:36 +0000 | [diff] [blame] | 1674 | ParseUsingDeclaration(Declarator::MemberContext, TemplateInfo, |
| 1675 | UsingLoc, DeclEnd, AS); |
Douglas Gregor | 9cfbe48 | 2009-06-20 00:51:54 +0000 | [diff] [blame] | 1676 | } |
| 1677 | return; |
| 1678 | } |
| 1679 | |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1680 | // decl-specifier-seq: |
| 1681 | // Parse the common declaration-specifiers piece. |
John McCall | c9068d7 | 2010-07-16 08:13:16 +0000 | [diff] [blame] | 1682 | ParsingDeclSpec DS(*this, TemplateDiags); |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 1683 | DS.takeAttributesFrom(attrs); |
Douglas Gregor | 37b372b | 2009-08-20 22:52:58 +0000 | [diff] [blame] | 1684 | ParseDeclarationSpecifiers(DS, TemplateInfo, AS, DSC_class); |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1685 | |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 1686 | MultiTemplateParamsArg TemplateParams(Actions, |
John McCall | dd4a3b0 | 2009-09-16 22:47:08 +0000 | [diff] [blame] | 1687 | TemplateInfo.TemplateParams? TemplateInfo.TemplateParams->data() : 0, |
| 1688 | TemplateInfo.TemplateParams? TemplateInfo.TemplateParams->size() : 0); |
| 1689 | |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1690 | if (Tok.is(tok::semi)) { |
| 1691 | ConsumeToken(); |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 1692 | Decl *TheDecl = |
Chandler Carruth | 0f4be74 | 2011-05-03 18:35:10 +0000 | [diff] [blame] | 1693 | Actions.ParsedFreeStandingDeclSpec(getCurScope(), AS, DS, TemplateParams); |
John McCall | c9068d7 | 2010-07-16 08:13:16 +0000 | [diff] [blame] | 1694 | DS.complete(TheDecl); |
John McCall | 67d1a67 | 2009-08-06 02:15:43 +0000 | [diff] [blame] | 1695 | return; |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1696 | } |
Argyrios Kyrtzidis | 0795232 | 2008-07-01 10:37:29 +0000 | [diff] [blame] | 1697 | |
John McCall | 54abf7d | 2009-11-04 02:18:39 +0000 | [diff] [blame] | 1698 | ParsingDeclarator DeclaratorInfo(*this, DS, Declarator::MemberContext); |
Nico Weber | 4867347 | 2011-01-28 06:07:34 +0000 | [diff] [blame] | 1699 | VirtSpecifiers VS; |
Francois Pichet | 6a24747 | 2011-05-11 02:14:46 +0000 | [diff] [blame] | 1700 | ExprResult Init; |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1701 | |
Argyrios Kyrtzidis | 3a9fdb4 | 2008-06-28 08:10:48 +0000 | [diff] [blame] | 1702 | if (Tok.isNot(tok::colon)) { |
Chris Lattner | a1efc8c | 2009-12-10 01:59:24 +0000 | [diff] [blame] | 1703 | // Don't parse FOO:BAR as if it were a typo for FOO::BAR. |
| 1704 | ColonProtectionRAIIObject X(*this); |
| 1705 | |
Argyrios Kyrtzidis | 3a9fdb4 | 2008-06-28 08:10:48 +0000 | [diff] [blame] | 1706 | // Parse the first declarator. |
| 1707 | ParseDeclarator(DeclaratorInfo); |
| 1708 | // Error parsing the declarator? |
Douglas Gregor | 10bd368 | 2008-11-17 22:58:34 +0000 | [diff] [blame] | 1709 | if (!DeclaratorInfo.hasName()) { |
Argyrios Kyrtzidis | 3a9fdb4 | 2008-06-28 08:10:48 +0000 | [diff] [blame] | 1710 | // If so, skip until the semi-colon or a }. |
Sebastian Redl | d941fa4 | 2011-04-24 16:27:48 +0000 | [diff] [blame] | 1711 | SkipUntil(tok::r_brace, true, true); |
Argyrios Kyrtzidis | 3a9fdb4 | 2008-06-28 08:10:48 +0000 | [diff] [blame] | 1712 | if (Tok.is(tok::semi)) |
| 1713 | ConsumeToken(); |
Chris Lattner | 682bf92 | 2009-03-29 16:50:03 +0000 | [diff] [blame] | 1714 | return; |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1715 | } |
| 1716 | |
Nico Weber | 4867347 | 2011-01-28 06:07:34 +0000 | [diff] [blame] | 1717 | ParseOptionalCXX0XVirtSpecifierSeq(VS); |
| 1718 | |
John Thompson | 1b2fc0f | 2009-11-25 22:58:06 +0000 | [diff] [blame] | 1719 | // If attributes exist after the declarator, but before an '{', parse them. |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 1720 | MaybeParseGNUAttributes(DeclaratorInfo); |
John Thompson | 1b2fc0f | 2009-11-25 22:58:06 +0000 | [diff] [blame] | 1721 | |
Francois Pichet | 6a24747 | 2011-05-11 02:14:46 +0000 | [diff] [blame] | 1722 | // MSVC permits pure specifier on inline functions declared at class scope. |
| 1723 | // Hence check for =0 before checking for function definition. |
| 1724 | if (getLang().Microsoft && Tok.is(tok::equal) && |
| 1725 | DeclaratorInfo.isFunctionDeclarator() && |
| 1726 | NextToken().is(tok::numeric_constant)) { |
| 1727 | ConsumeToken(); |
| 1728 | Init = ParseInitializer(); |
| 1729 | if (Init.isInvalid()) |
| 1730 | SkipUntil(tok::comma, true, true); |
| 1731 | } |
| 1732 | |
Sean Hunt | e4246a6 | 2011-05-12 06:15:49 +0000 | [diff] [blame] | 1733 | bool IsDefinition = false; |
Argyrios Kyrtzidis | 3a9fdb4 | 2008-06-28 08:10:48 +0000 | [diff] [blame] | 1734 | // function-definition: |
Richard Smith | 7a614d8 | 2011-06-11 17:19:42 +0000 | [diff] [blame^] | 1735 | // |
| 1736 | // In C++11, a non-function declarator followed by an open brace is a |
| 1737 | // braced-init-list for an in-class member initialization, not an |
| 1738 | // erroneous function definition. |
| 1739 | if (Tok.is(tok::l_brace) && !getLang().CPlusPlus0x) { |
Sean Hunt | e4246a6 | 2011-05-12 06:15:49 +0000 | [diff] [blame] | 1740 | IsDefinition = true; |
| 1741 | } else if (DeclaratorInfo.isFunctionDeclarator()) { |
Richard Smith | 7a614d8 | 2011-06-11 17:19:42 +0000 | [diff] [blame^] | 1742 | 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] | 1743 | IsDefinition = true; |
| 1744 | } else if (Tok.is(tok::equal)) { |
| 1745 | const Token &KW = NextToken(); |
| 1746 | if (KW.is(tok::kw_default) || KW.is(tok::kw_delete)) |
| 1747 | IsDefinition = true; |
| 1748 | } |
| 1749 | } |
| 1750 | |
| 1751 | if (IsDefinition) { |
Argyrios Kyrtzidis | 3a9fdb4 | 2008-06-28 08:10:48 +0000 | [diff] [blame] | 1752 | if (!DeclaratorInfo.isFunctionDeclarator()) { |
| 1753 | Diag(Tok, diag::err_func_def_no_params); |
| 1754 | ConsumeBrace(); |
| 1755 | SkipUntil(tok::r_brace, true); |
Douglas Gregor | 9ea416e | 2011-01-19 16:41:58 +0000 | [diff] [blame] | 1756 | |
| 1757 | // Consume the optional ';' |
| 1758 | if (Tok.is(tok::semi)) |
| 1759 | ConsumeToken(); |
Chris Lattner | 682bf92 | 2009-03-29 16:50:03 +0000 | [diff] [blame] | 1760 | return; |
Argyrios Kyrtzidis | 3a9fdb4 | 2008-06-28 08:10:48 +0000 | [diff] [blame] | 1761 | } |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1762 | |
Argyrios Kyrtzidis | 3a9fdb4 | 2008-06-28 08:10:48 +0000 | [diff] [blame] | 1763 | if (DS.getStorageClassSpec() == DeclSpec::SCS_typedef) { |
| 1764 | Diag(Tok, diag::err_function_declared_typedef); |
| 1765 | // This recovery skips the entire function body. It would be nice |
| 1766 | // to simply call ParseCXXInlineMethodDef() below, however Sema |
| 1767 | // assumes the declarator represents a function, not a typedef. |
| 1768 | ConsumeBrace(); |
| 1769 | SkipUntil(tok::r_brace, true); |
Douglas Gregor | 9ea416e | 2011-01-19 16:41:58 +0000 | [diff] [blame] | 1770 | |
| 1771 | // Consume the optional ';' |
| 1772 | if (Tok.is(tok::semi)) |
| 1773 | ConsumeToken(); |
Chris Lattner | 682bf92 | 2009-03-29 16:50:03 +0000 | [diff] [blame] | 1774 | return; |
Argyrios Kyrtzidis | 3a9fdb4 | 2008-06-28 08:10:48 +0000 | [diff] [blame] | 1775 | } |
| 1776 | |
Francois Pichet | 6a24747 | 2011-05-11 02:14:46 +0000 | [diff] [blame] | 1777 | ParseCXXInlineMethodDef(AS, DeclaratorInfo, TemplateInfo, VS, Init); |
Sean Hunt | e4246a6 | 2011-05-12 06:15:49 +0000 | [diff] [blame] | 1778 | |
| 1779 | // Consume the ';' - it's optional unless we have a delete or default |
| 1780 | if (Tok.is(tok::semi)) { |
Douglas Gregor | 9ea416e | 2011-01-19 16:41:58 +0000 | [diff] [blame] | 1781 | ConsumeToken(); |
Sean Hunt | e4246a6 | 2011-05-12 06:15:49 +0000 | [diff] [blame] | 1782 | } |
Douglas Gregor | 9ea416e | 2011-01-19 16:41:58 +0000 | [diff] [blame] | 1783 | |
Chris Lattner | 682bf92 | 2009-03-29 16:50:03 +0000 | [diff] [blame] | 1784 | return; |
Argyrios Kyrtzidis | 3a9fdb4 | 2008-06-28 08:10:48 +0000 | [diff] [blame] | 1785 | } |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1786 | } |
| 1787 | |
| 1788 | // member-declarator-list: |
| 1789 | // member-declarator |
| 1790 | // member-declarator-list ',' member-declarator |
| 1791 | |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 1792 | llvm::SmallVector<Decl *, 8> DeclsInGroup; |
John McCall | 60d7b3a | 2010-08-24 06:29:42 +0000 | [diff] [blame] | 1793 | ExprResult BitfieldSize; |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1794 | |
| 1795 | while (1) { |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1796 | // member-declarator: |
| 1797 | // declarator pure-specifier[opt] |
Richard Smith | 7a614d8 | 2011-06-11 17:19:42 +0000 | [diff] [blame^] | 1798 | // declarator brace-or-equal-initializer[opt] |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1799 | // identifier[opt] ':' constant-expression |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1800 | if (Tok.is(tok::colon)) { |
| 1801 | ConsumeToken(); |
Sebastian Redl | 0e9eabc | 2008-12-09 13:15:23 +0000 | [diff] [blame] | 1802 | BitfieldSize = ParseConstantExpression(); |
| 1803 | if (BitfieldSize.isInvalid()) |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1804 | SkipUntil(tok::comma, true, true); |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1805 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1806 | |
Chris Lattner | e656325 | 2010-06-13 05:34:18 +0000 | [diff] [blame] | 1807 | // If a simple-asm-expr is present, parse it. |
| 1808 | if (Tok.is(tok::kw_asm)) { |
| 1809 | SourceLocation Loc; |
John McCall | 60d7b3a | 2010-08-24 06:29:42 +0000 | [diff] [blame] | 1810 | ExprResult AsmLabel(ParseSimpleAsm(&Loc)); |
Chris Lattner | e656325 | 2010-06-13 05:34:18 +0000 | [diff] [blame] | 1811 | if (AsmLabel.isInvalid()) |
| 1812 | SkipUntil(tok::comma, true, true); |
| 1813 | |
| 1814 | DeclaratorInfo.setAsmLabel(AsmLabel.release()); |
| 1815 | DeclaratorInfo.SetRangeEnd(Loc); |
| 1816 | } |
| 1817 | |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1818 | // If attributes exist after the declarator, parse them. |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 1819 | MaybeParseGNUAttributes(DeclaratorInfo); |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1820 | |
Richard Smith | 7a614d8 | 2011-06-11 17:19:42 +0000 | [diff] [blame^] | 1821 | // FIXME: When g++ adds support for this, we'll need to check whether it |
| 1822 | // goes before or after the GNU attributes and __asm__. |
| 1823 | ParseOptionalCXX0XVirtSpecifierSeq(VS); |
| 1824 | |
| 1825 | bool HasDeferredInitializer = false; |
| 1826 | if (Tok.is(tok::equal) || Tok.is(tok::l_brace)) { |
| 1827 | if (BitfieldSize.get()) { |
| 1828 | Diag(Tok, diag::err_bitfield_member_init); |
| 1829 | SkipUntil(tok::comma, true, true); |
| 1830 | } else { |
| 1831 | HasDeferredInitializer = !DeclaratorInfo.isFunctionDeclarator() && |
| 1832 | DeclaratorInfo.getDeclSpec().getStorageClassSpec() |
| 1833 | != DeclSpec::SCS_static; |
| 1834 | |
| 1835 | if (!HasDeferredInitializer) { |
| 1836 | SourceLocation EqualLoc; |
| 1837 | Init = ParseCXXMemberInitializer( |
| 1838 | DeclaratorInfo.isFunctionDeclarator(), EqualLoc); |
| 1839 | if (Init.isInvalid()) |
| 1840 | SkipUntil(tok::comma, true, true); |
| 1841 | } |
| 1842 | } |
| 1843 | } |
| 1844 | |
Argyrios Kyrtzidis | 0795232 | 2008-07-01 10:37:29 +0000 | [diff] [blame] | 1845 | // 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] | 1846 | // this call will *not* return the created decl; It will return null. |
Argyrios Kyrtzidis | 0795232 | 2008-07-01 10:37:29 +0000 | [diff] [blame] | 1847 | // See Sema::ActOnCXXMemberDeclarator for details. |
John McCall | 67d1a67 | 2009-08-06 02:15:43 +0000 | [diff] [blame] | 1848 | |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 1849 | Decl *ThisDecl = 0; |
John McCall | 67d1a67 | 2009-08-06 02:15:43 +0000 | [diff] [blame] | 1850 | if (DS.isFriendSpecified()) { |
John McCall | bbbcdd9 | 2009-09-11 21:02:39 +0000 | [diff] [blame] | 1851 | // TODO: handle initializers, bitfields, 'delete' |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 1852 | ThisDecl = Actions.ActOnFriendFunctionDecl(getCurScope(), DeclaratorInfo, |
John McCall | bbbcdd9 | 2009-09-11 21:02:39 +0000 | [diff] [blame] | 1853 | /*IsDefinition*/ false, |
| 1854 | move(TemplateParams)); |
Douglas Gregor | 37b372b | 2009-08-20 22:52:58 +0000 | [diff] [blame] | 1855 | } else { |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 1856 | ThisDecl = Actions.ActOnCXXMemberDeclarator(getCurScope(), AS, |
John McCall | 67d1a67 | 2009-08-06 02:15:43 +0000 | [diff] [blame] | 1857 | DeclaratorInfo, |
Douglas Gregor | 37b372b | 2009-08-20 22:52:58 +0000 | [diff] [blame] | 1858 | move(TemplateParams), |
John McCall | 67d1a67 | 2009-08-06 02:15:43 +0000 | [diff] [blame] | 1859 | BitfieldSize.release(), |
Richard Smith | 7a614d8 | 2011-06-11 17:19:42 +0000 | [diff] [blame^] | 1860 | VS, Init.release(), |
| 1861 | HasDeferredInitializer, |
| 1862 | /*IsDefinition*/ false); |
Douglas Gregor | 37b372b | 2009-08-20 22:52:58 +0000 | [diff] [blame] | 1863 | } |
Chris Lattner | 682bf92 | 2009-03-29 16:50:03 +0000 | [diff] [blame] | 1864 | if (ThisDecl) |
| 1865 | DeclsInGroup.push_back(ThisDecl); |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1866 | |
Douglas Gregor | 72b505b | 2008-12-16 21:30:33 +0000 | [diff] [blame] | 1867 | if (DeclaratorInfo.isFunctionDeclarator() && |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1868 | DeclaratorInfo.getDeclSpec().getStorageClassSpec() |
Douglas Gregor | 72b505b | 2008-12-16 21:30:33 +0000 | [diff] [blame] | 1869 | != DeclSpec::SCS_typedef) { |
Eli Friedman | d33133c | 2009-07-22 21:45:50 +0000 | [diff] [blame] | 1870 | HandleMemberFunctionDefaultArgs(DeclaratorInfo, ThisDecl); |
Douglas Gregor | 72b505b | 2008-12-16 21:30:33 +0000 | [diff] [blame] | 1871 | } |
| 1872 | |
John McCall | 54abf7d | 2009-11-04 02:18:39 +0000 | [diff] [blame] | 1873 | DeclaratorInfo.complete(ThisDecl); |
| 1874 | |
Richard Smith | 7a614d8 | 2011-06-11 17:19:42 +0000 | [diff] [blame^] | 1875 | if (HasDeferredInitializer) { |
| 1876 | if (!getLang().CPlusPlus0x) |
| 1877 | Diag(Tok, diag::warn_nonstatic_member_init_accepted_as_extension); |
| 1878 | |
| 1879 | if (DeclaratorInfo.isArrayOfUnknownBound()) { |
| 1880 | // C++0x [dcl.array]p3: An array bound may also be omitted when the |
| 1881 | // declarator is followed by an initializer. |
| 1882 | // |
| 1883 | // A brace-or-equal-initializer for a member-declarator is not an |
| 1884 | // initializer in the gramamr, so this is ill-formed. |
| 1885 | Diag(Tok, diag::err_incomplete_array_member_init); |
| 1886 | SkipUntil(tok::comma, true, true); |
| 1887 | // Avoid later warnings about a class member of incomplete type. |
| 1888 | ThisDecl->setInvalidDecl(); |
| 1889 | } else |
| 1890 | ParseCXXNonStaticMemberInitializer(ThisDecl); |
| 1891 | } |
| 1892 | |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1893 | // If we don't have a comma, it is either the end of the list (a ';') |
| 1894 | // or an error, bail out. |
| 1895 | if (Tok.isNot(tok::comma)) |
| 1896 | break; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1897 | |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1898 | // Consume the comma. |
| 1899 | ConsumeToken(); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1900 | |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1901 | // Parse the next declarator. |
| 1902 | DeclaratorInfo.clear(); |
Nico Weber | 4867347 | 2011-01-28 06:07:34 +0000 | [diff] [blame] | 1903 | VS.clear(); |
Sebastian Redl | 15faa7f | 2008-12-09 20:22:58 +0000 | [diff] [blame] | 1904 | BitfieldSize = 0; |
| 1905 | Init = 0; |
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 | // Attributes are only allowed on the second declarator. |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 1908 | MaybeParseGNUAttributes(DeclaratorInfo); |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1909 | |
Argyrios Kyrtzidis | 3a9fdb4 | 2008-06-28 08:10:48 +0000 | [diff] [blame] | 1910 | if (Tok.isNot(tok::colon)) |
| 1911 | ParseDeclarator(DeclaratorInfo); |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1912 | } |
| 1913 | |
Chris Lattner | ae50d50 | 2010-02-02 00:43:15 +0000 | [diff] [blame] | 1914 | if (ExpectAndConsume(tok::semi, diag::err_expected_semi_decl_list)) { |
| 1915 | // Skip to end of block or statement. |
| 1916 | SkipUntil(tok::r_brace, true, true); |
| 1917 | // If we stopped at a ';', eat it. |
| 1918 | if (Tok.is(tok::semi)) ConsumeToken(); |
Chris Lattner | 682bf92 | 2009-03-29 16:50:03 +0000 | [diff] [blame] | 1919 | return; |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1920 | } |
| 1921 | |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 1922 | Actions.FinalizeDeclaratorGroup(getCurScope(), DS, DeclsInGroup.data(), |
Chris Lattner | ae50d50 | 2010-02-02 00:43:15 +0000 | [diff] [blame] | 1923 | DeclsInGroup.size()); |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1924 | } |
| 1925 | |
Richard Smith | 7a614d8 | 2011-06-11 17:19:42 +0000 | [diff] [blame^] | 1926 | /// ParseCXXMemberInitializer - Parse the brace-or-equal-initializer or |
| 1927 | /// pure-specifier. Also detect and reject any attempted defaulted/deleted |
| 1928 | /// function definition. The location of the '=', if any, will be placed in |
| 1929 | /// EqualLoc. |
| 1930 | /// |
| 1931 | /// pure-specifier: |
| 1932 | /// '= 0' |
| 1933 | /// |
| 1934 | /// brace-or-equal-initializer: |
| 1935 | /// '=' initializer-expression |
| 1936 | /// braced-init-list [TODO] |
| 1937 | /// |
| 1938 | /// initializer-clause: |
| 1939 | /// assignment-expression |
| 1940 | /// braced-init-list [TODO] |
| 1941 | /// |
| 1942 | /// defaulted/deleted function-definition: |
| 1943 | /// '=' 'default' |
| 1944 | /// '=' 'delete' |
| 1945 | /// |
| 1946 | /// Prior to C++0x, the assignment-expression in an initializer-clause must |
| 1947 | /// be a constant-expression. |
| 1948 | ExprResult Parser::ParseCXXMemberInitializer(bool IsFunction, |
| 1949 | SourceLocation &EqualLoc) { |
| 1950 | assert((Tok.is(tok::equal) || Tok.is(tok::l_brace)) |
| 1951 | && "Data member initializer not starting with '=' or '{'"); |
| 1952 | |
| 1953 | if (Tok.is(tok::equal)) { |
| 1954 | EqualLoc = ConsumeToken(); |
| 1955 | if (Tok.is(tok::kw_delete)) { |
| 1956 | // In principle, an initializer of '= delete p;' is legal, but it will |
| 1957 | // never type-check. It's better to diagnose it as an ill-formed expression |
| 1958 | // than as an ill-formed deleted non-function member. |
| 1959 | // An initializer of '= delete p, foo' will never be parsed, because |
| 1960 | // a top-level comma always ends the initializer expression. |
| 1961 | const Token &Next = NextToken(); |
| 1962 | if (IsFunction || Next.is(tok::semi) || Next.is(tok::comma) || |
| 1963 | Next.is(tok::eof)) { |
| 1964 | if (IsFunction) |
| 1965 | Diag(ConsumeToken(), diag::err_default_delete_in_multiple_declaration) |
| 1966 | << 1 /* delete */; |
| 1967 | else |
| 1968 | Diag(ConsumeToken(), diag::err_deleted_non_function); |
| 1969 | return ExprResult(); |
| 1970 | } |
| 1971 | } else if (Tok.is(tok::kw_default)) { |
| 1972 | Diag(ConsumeToken(), diag::err_default_special_members); |
| 1973 | if (IsFunction) |
| 1974 | Diag(Tok, diag::err_default_delete_in_multiple_declaration) |
| 1975 | << 0 /* default */; |
| 1976 | else |
| 1977 | Diag(ConsumeToken(), diag::err_default_special_members); |
| 1978 | return ExprResult(); |
| 1979 | } |
| 1980 | |
| 1981 | return ParseInitializer(); |
| 1982 | } else |
| 1983 | return ExprError(Diag(Tok, diag::err_generalized_initializer_lists)); |
| 1984 | } |
| 1985 | |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1986 | /// ParseCXXMemberSpecification - Parse the class definition. |
| 1987 | /// |
| 1988 | /// member-specification: |
| 1989 | /// member-declaration member-specification[opt] |
| 1990 | /// access-specifier ':' member-specification[opt] |
| 1991 | /// |
| 1992 | void Parser::ParseCXXMemberSpecification(SourceLocation RecordLoc, |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 1993 | unsigned TagType, Decl *TagDecl) { |
Sanjiv Gupta | 31fc07d | 2008-10-31 09:52:39 +0000 | [diff] [blame] | 1994 | assert((TagType == DeclSpec::TST_struct || |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1995 | TagType == DeclSpec::TST_union || |
Sanjiv Gupta | 31fc07d | 2008-10-31 09:52:39 +0000 | [diff] [blame] | 1996 | TagType == DeclSpec::TST_class) && "Invalid TagType!"); |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1997 | |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 1998 | PrettyDeclStackTraceEntry CrashInfo(Actions, TagDecl, RecordLoc, |
| 1999 | "parsing struct/union/class body"); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2000 | |
Douglas Gregor | 26997fd | 2010-01-16 20:52:59 +0000 | [diff] [blame] | 2001 | // Determine whether this is a non-nested class. Note that local |
| 2002 | // classes are *not* considered to be nested classes. |
| 2003 | bool NonNestedClass = true; |
| 2004 | if (!ClassStack.empty()) { |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 2005 | for (const Scope *S = getCurScope(); S; S = S->getParent()) { |
Douglas Gregor | 26997fd | 2010-01-16 20:52:59 +0000 | [diff] [blame] | 2006 | if (S->isClassScope()) { |
| 2007 | // We're inside a class scope, so this is a nested class. |
| 2008 | NonNestedClass = false; |
| 2009 | break; |
| 2010 | } |
| 2011 | |
| 2012 | if ((S->getFlags() & Scope::FnScope)) { |
| 2013 | // If we're in a function or function template declared in the |
| 2014 | // body of a class, then this is a local class rather than a |
| 2015 | // nested class. |
| 2016 | const Scope *Parent = S->getParent(); |
| 2017 | if (Parent->isTemplateParamScope()) |
| 2018 | Parent = Parent->getParent(); |
| 2019 | if (Parent->isClassScope()) |
| 2020 | break; |
| 2021 | } |
| 2022 | } |
| 2023 | } |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 2024 | |
| 2025 | // Enter a scope for the class. |
Douglas Gregor | 3218c4b | 2009-01-09 22:42:13 +0000 | [diff] [blame] | 2026 | ParseScope ClassScope(this, Scope::ClassScope|Scope::DeclScope); |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 2027 | |
Douglas Gregor | 6569d68 | 2009-05-27 23:11:45 +0000 | [diff] [blame] | 2028 | // Note that we are parsing a new (potentially-nested) class definition. |
Douglas Gregor | 26997fd | 2010-01-16 20:52:59 +0000 | [diff] [blame] | 2029 | ParsingClassDefinition ParsingDef(*this, TagDecl, NonNestedClass); |
Douglas Gregor | 6569d68 | 2009-05-27 23:11:45 +0000 | [diff] [blame] | 2030 | |
Douglas Gregor | ddc29e1 | 2009-02-06 22:42:48 +0000 | [diff] [blame] | 2031 | if (TagDecl) |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 2032 | Actions.ActOnTagStartDefinition(getCurScope(), TagDecl); |
John McCall | bd0dfa5 | 2009-12-19 21:48:58 +0000 | [diff] [blame] | 2033 | |
Anders Carlsson | b184a18 | 2011-03-25 14:46:08 +0000 | [diff] [blame] | 2034 | SourceLocation FinalLoc; |
| 2035 | |
| 2036 | // Parse the optional 'final' keyword. |
| 2037 | if (getLang().CPlusPlus && Tok.is(tok::identifier)) { |
| 2038 | IdentifierInfo *II = Tok.getIdentifierInfo(); |
| 2039 | |
| 2040 | // Initialize the contextual keywords. |
| 2041 | if (!Ident_final) { |
| 2042 | Ident_final = &PP.getIdentifierTable().get("final"); |
| 2043 | Ident_override = &PP.getIdentifierTable().get("override"); |
| 2044 | } |
| 2045 | |
| 2046 | if (II == Ident_final) |
| 2047 | FinalLoc = ConsumeToken(); |
| 2048 | |
| 2049 | if (!getLang().CPlusPlus0x) |
| 2050 | Diag(FinalLoc, diag::ext_override_control_keyword) << "final"; |
| 2051 | } |
Anders Carlsson | cc54d59 | 2011-01-22 16:56:46 +0000 | [diff] [blame] | 2052 | |
John McCall | bd0dfa5 | 2009-12-19 21:48:58 +0000 | [diff] [blame] | 2053 | if (Tok.is(tok::colon)) { |
| 2054 | ParseBaseClause(TagDecl); |
| 2055 | |
| 2056 | if (!Tok.is(tok::l_brace)) { |
| 2057 | Diag(Tok, diag::err_expected_lbrace_after_base_specifiers); |
John McCall | db7bb4a | 2010-03-17 00:38:33 +0000 | [diff] [blame] | 2058 | |
| 2059 | if (TagDecl) |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 2060 | Actions.ActOnTagDefinitionError(getCurScope(), TagDecl); |
John McCall | bd0dfa5 | 2009-12-19 21:48:58 +0000 | [diff] [blame] | 2061 | return; |
| 2062 | } |
| 2063 | } |
| 2064 | |
| 2065 | assert(Tok.is(tok::l_brace)); |
| 2066 | |
| 2067 | SourceLocation LBraceLoc = ConsumeBrace(); |
| 2068 | |
John McCall | 42a4f66 | 2010-05-28 08:11:17 +0000 | [diff] [blame] | 2069 | if (TagDecl) |
Anders Carlsson | 2c3ee54 | 2011-03-25 14:31:08 +0000 | [diff] [blame] | 2070 | Actions.ActOnStartCXXMemberDeclarations(getCurScope(), TagDecl, FinalLoc, |
Anders Carlsson | dfc2f10 | 2011-01-22 17:51:53 +0000 | [diff] [blame] | 2071 | LBraceLoc); |
John McCall | f936815 | 2009-12-20 07:58:13 +0000 | [diff] [blame] | 2072 | |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 2073 | // C++ 11p3: Members of a class defined with the keyword class are private |
| 2074 | // by default. Members of a class defined with the keywords struct or union |
| 2075 | // are public by default. |
| 2076 | AccessSpecifier CurAS; |
| 2077 | if (TagType == DeclSpec::TST_class) |
| 2078 | CurAS = AS_private; |
| 2079 | else |
| 2080 | CurAS = AS_public; |
| 2081 | |
Douglas Gregor | 07976d2 | 2010-06-21 22:31:09 +0000 | [diff] [blame] | 2082 | SourceLocation RBraceLoc; |
| 2083 | if (TagDecl) { |
| 2084 | // While we still have something to read, read the member-declarations. |
| 2085 | while (Tok.isNot(tok::r_brace) && Tok.isNot(tok::eof)) { |
| 2086 | // Each iteration of this loop reads one member-declaration. |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2087 | |
Francois Pichet | 563a645 | 2011-05-25 10:19:49 +0000 | [diff] [blame] | 2088 | if (getLang().Microsoft && (Tok.is(tok::kw___if_exists) || |
| 2089 | Tok.is(tok::kw___if_not_exists))) { |
| 2090 | ParseMicrosoftIfExistsClassDeclaration((DeclSpec::TST)TagType, CurAS); |
| 2091 | continue; |
| 2092 | } |
| 2093 | |
Douglas Gregor | 07976d2 | 2010-06-21 22:31:09 +0000 | [diff] [blame] | 2094 | // Check for extraneous top-level semicolon. |
| 2095 | if (Tok.is(tok::semi)) { |
| 2096 | Diag(Tok, diag::ext_extra_struct_semi) |
| 2097 | << DeclSpec::getSpecifierName((DeclSpec::TST)TagType) |
| 2098 | << FixItHint::CreateRemoval(Tok.getLocation()); |
| 2099 | ConsumeToken(); |
| 2100 | continue; |
| 2101 | } |
| 2102 | |
| 2103 | AccessSpecifier AS = getAccessSpecifierIfPresent(); |
| 2104 | if (AS != AS_none) { |
| 2105 | // Current token is a C++ access specifier. |
| 2106 | CurAS = AS; |
| 2107 | SourceLocation ASLoc = Tok.getLocation(); |
| 2108 | ConsumeToken(); |
| 2109 | if (Tok.is(tok::colon)) |
| 2110 | Actions.ActOnAccessSpecifier(AS, ASLoc, Tok.getLocation()); |
| 2111 | else |
| 2112 | Diag(Tok, diag::err_expected_colon); |
| 2113 | ConsumeToken(); |
| 2114 | continue; |
| 2115 | } |
| 2116 | |
| 2117 | // FIXME: Make sure we don't have a template here. |
| 2118 | |
| 2119 | // Parse all the comma separated declarators. |
| 2120 | ParseCXXClassMemberDeclaration(CurAS); |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 2121 | } |
| 2122 | |
Douglas Gregor | 07976d2 | 2010-06-21 22:31:09 +0000 | [diff] [blame] | 2123 | RBraceLoc = MatchRHSPunctuation(tok::r_brace, LBraceLoc); |
| 2124 | } else { |
| 2125 | SkipUntil(tok::r_brace, false, false); |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 2126 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2127 | |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 2128 | // If attributes exist after class contents, parse them. |
John McCall | 0b7e678 | 2011-03-24 11:26:52 +0000 | [diff] [blame] | 2129 | ParsedAttributes attrs(AttrFactory); |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 2130 | MaybeParseGNUAttributes(attrs); |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 2131 | |
John McCall | 42a4f66 | 2010-05-28 08:11:17 +0000 | [diff] [blame] | 2132 | if (TagDecl) |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 2133 | Actions.ActOnFinishCXXMemberSpecification(getCurScope(), RecordLoc, TagDecl, |
John McCall | 42a4f66 | 2010-05-28 08:11:17 +0000 | [diff] [blame] | 2134 | LBraceLoc, RBraceLoc, |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 2135 | attrs.getList()); |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 2136 | |
Richard Smith | 7a614d8 | 2011-06-11 17:19:42 +0000 | [diff] [blame^] | 2137 | // C++0x [class.mem]p2: Within the class member-specification, the class is |
| 2138 | // regarded as complete within function bodies, default arguments, exception- |
| 2139 | // specifications, and brace-or-equal-initializers for non-static data |
| 2140 | // members (including such things in nested classes). |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 2141 | // |
Richard Smith | 7a614d8 | 2011-06-11 17:19:42 +0000 | [diff] [blame^] | 2142 | // FIXME: Only function bodies and brace-or-equal-initializers are currently |
| 2143 | // handled. Fix the others! |
Douglas Gregor | 07976d2 | 2010-06-21 22:31:09 +0000 | [diff] [blame] | 2144 | if (TagDecl && NonNestedClass) { |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 2145 | // 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] | 2146 | // are complete and we can parse the delayed portions of method |
| 2147 | // declarations and the lexed inline method definitions. |
Douglas Gregor | e0cc047 | 2010-06-16 23:45:56 +0000 | [diff] [blame] | 2148 | SourceLocation SavedPrevTokLocation = PrevTokLocation; |
Douglas Gregor | 6569d68 | 2009-05-27 23:11:45 +0000 | [diff] [blame] | 2149 | ParseLexedMethodDeclarations(getCurrentClass()); |
Richard Smith | 7a614d8 | 2011-06-11 17:19:42 +0000 | [diff] [blame^] | 2150 | ParseLexedMemberInitializers(getCurrentClass()); |
Douglas Gregor | 6569d68 | 2009-05-27 23:11:45 +0000 | [diff] [blame] | 2151 | ParseLexedMethodDefs(getCurrentClass()); |
Douglas Gregor | e0cc047 | 2010-06-16 23:45:56 +0000 | [diff] [blame] | 2152 | PrevTokLocation = SavedPrevTokLocation; |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 2153 | } |
| 2154 | |
John McCall | 42a4f66 | 2010-05-28 08:11:17 +0000 | [diff] [blame] | 2155 | if (TagDecl) |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 2156 | Actions.ActOnTagFinishDefinition(getCurScope(), TagDecl, RBraceLoc); |
John McCall | db7bb4a | 2010-03-17 00:38:33 +0000 | [diff] [blame] | 2157 | |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 2158 | // Leave the class scope. |
Douglas Gregor | 6569d68 | 2009-05-27 23:11:45 +0000 | [diff] [blame] | 2159 | ParsingDef.Pop(); |
Douglas Gregor | 8935b8b | 2008-12-10 06:34:36 +0000 | [diff] [blame] | 2160 | ClassScope.Exit(); |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 2161 | } |
Douglas Gregor | 7ad8390 | 2008-11-05 04:29:56 +0000 | [diff] [blame] | 2162 | |
| 2163 | /// ParseConstructorInitializer - Parse a C++ constructor initializer, |
| 2164 | /// which explicitly initializes the members or base classes of a |
| 2165 | /// class (C++ [class.base.init]). For example, the three initializers |
| 2166 | /// after the ':' in the Derived constructor below: |
| 2167 | /// |
| 2168 | /// @code |
| 2169 | /// class Base { }; |
| 2170 | /// class Derived : Base { |
| 2171 | /// int x; |
| 2172 | /// float f; |
| 2173 | /// public: |
| 2174 | /// Derived(float f) : Base(), x(17), f(f) { } |
| 2175 | /// }; |
| 2176 | /// @endcode |
| 2177 | /// |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2178 | /// [C++] ctor-initializer: |
| 2179 | /// ':' mem-initializer-list |
Douglas Gregor | 7ad8390 | 2008-11-05 04:29:56 +0000 | [diff] [blame] | 2180 | /// |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2181 | /// [C++] mem-initializer-list: |
Douglas Gregor | 3fb9e4b | 2011-01-04 00:32:56 +0000 | [diff] [blame] | 2182 | /// mem-initializer ...[opt] |
| 2183 | /// mem-initializer ...[opt] , mem-initializer-list |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 2184 | void Parser::ParseConstructorInitializer(Decl *ConstructorDecl) { |
Douglas Gregor | 7ad8390 | 2008-11-05 04:29:56 +0000 | [diff] [blame] | 2185 | assert(Tok.is(tok::colon) && "Constructor initializer always starts with ':'"); |
| 2186 | |
John Wiegley | 28bbe4b | 2011-04-28 01:08:34 +0000 | [diff] [blame] | 2187 | // Poison the SEH identifiers so they are flagged as illegal in constructor initializers |
| 2188 | PoisonSEHIdentifiersRAIIObject PoisonSEHIdentifiers(*this, true); |
Douglas Gregor | 7ad8390 | 2008-11-05 04:29:56 +0000 | [diff] [blame] | 2189 | SourceLocation ColonLoc = ConsumeToken(); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2190 | |
Sean Hunt | cbb6748 | 2011-01-08 20:30:50 +0000 | [diff] [blame] | 2191 | llvm::SmallVector<CXXCtorInitializer*, 4> MemInitializers; |
Douglas Gregor | 9db7dbb | 2010-01-31 09:12:51 +0000 | [diff] [blame] | 2192 | bool AnyErrors = false; |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 2193 | |
Douglas Gregor | 7ad8390 | 2008-11-05 04:29:56 +0000 | [diff] [blame] | 2194 | do { |
Douglas Gregor | 0133f52 | 2010-08-28 00:00:50 +0000 | [diff] [blame] | 2195 | if (Tok.is(tok::code_completion)) { |
| 2196 | Actions.CodeCompleteConstructorInitializer(ConstructorDecl, |
| 2197 | MemInitializers.data(), |
| 2198 | MemInitializers.size()); |
| 2199 | ConsumeCodeCompletionToken(); |
| 2200 | } else { |
| 2201 | MemInitResult MemInit = ParseMemInitializer(ConstructorDecl); |
| 2202 | if (!MemInit.isInvalid()) |
| 2203 | MemInitializers.push_back(MemInit.get()); |
| 2204 | else |
| 2205 | AnyErrors = true; |
| 2206 | } |
| 2207 | |
Douglas Gregor | 7ad8390 | 2008-11-05 04:29:56 +0000 | [diff] [blame] | 2208 | if (Tok.is(tok::comma)) |
| 2209 | ConsumeToken(); |
| 2210 | else if (Tok.is(tok::l_brace)) |
| 2211 | break; |
Douglas Gregor | b1f6fa4 | 2010-09-07 14:35:10 +0000 | [diff] [blame] | 2212 | // If the next token looks like a base or member initializer, assume that |
| 2213 | // we're just missing a comma. |
Douglas Gregor | 751f692 | 2010-09-07 14:51:08 +0000 | [diff] [blame] | 2214 | else if (Tok.is(tok::identifier) || Tok.is(tok::coloncolon)) { |
| 2215 | SourceLocation Loc = PP.getLocForEndOfToken(PrevTokLocation); |
| 2216 | Diag(Loc, diag::err_ctor_init_missing_comma) |
| 2217 | << FixItHint::CreateInsertion(Loc, ", "); |
| 2218 | } else { |
Douglas Gregor | 7ad8390 | 2008-11-05 04:29:56 +0000 | [diff] [blame] | 2219 | // Skip over garbage, until we get to '{'. Don't eat the '{'. |
Sebastian Redl | d3a413d | 2009-04-26 20:35:05 +0000 | [diff] [blame] | 2220 | Diag(Tok.getLocation(), diag::err_expected_lbrace_or_comma); |
Douglas Gregor | 7ad8390 | 2008-11-05 04:29:56 +0000 | [diff] [blame] | 2221 | SkipUntil(tok::l_brace, true, true); |
| 2222 | break; |
| 2223 | } |
| 2224 | } while (true); |
| 2225 | |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2226 | Actions.ActOnMemInitializers(ConstructorDecl, ColonLoc, |
Douglas Gregor | 9db7dbb | 2010-01-31 09:12:51 +0000 | [diff] [blame] | 2227 | MemInitializers.data(), MemInitializers.size(), |
| 2228 | AnyErrors); |
Douglas Gregor | 7ad8390 | 2008-11-05 04:29:56 +0000 | [diff] [blame] | 2229 | } |
| 2230 | |
| 2231 | /// ParseMemInitializer - Parse a C++ member initializer, which is |
| 2232 | /// part of a constructor initializer that explicitly initializes one |
| 2233 | /// member or base class (C++ [class.base.init]). See |
| 2234 | /// ParseConstructorInitializer for an example. |
| 2235 | /// |
| 2236 | /// [C++] mem-initializer: |
| 2237 | /// mem-initializer-id '(' expression-list[opt] ')' |
Sebastian Redl | dbef1bb | 2011-06-05 12:23:16 +0000 | [diff] [blame] | 2238 | /// [C++0x] mem-initializer-id braced-init-list |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2239 | /// |
Douglas Gregor | 7ad8390 | 2008-11-05 04:29:56 +0000 | [diff] [blame] | 2240 | /// [C++] mem-initializer-id: |
| 2241 | /// '::'[opt] nested-name-specifier[opt] class-name |
| 2242 | /// identifier |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 2243 | Parser::MemInitResult Parser::ParseMemInitializer(Decl *ConstructorDecl) { |
Fariborz Jahanian | bcfad54 | 2009-06-30 23:26:25 +0000 | [diff] [blame] | 2244 | // parse '::'[opt] nested-name-specifier[opt] |
| 2245 | CXXScopeSpec SS; |
John McCall | b3d8748 | 2010-08-24 05:47:05 +0000 | [diff] [blame] | 2246 | ParseOptionalCXXScopeSpecifier(SS, ParsedType(), false); |
| 2247 | ParsedType TemplateTypeTy; |
Fariborz Jahanian | 9617433 | 2009-07-01 19:21:19 +0000 | [diff] [blame] | 2248 | if (Tok.is(tok::annot_template_id)) { |
| 2249 | TemplateIdAnnotation *TemplateId |
| 2250 | = static_cast<TemplateIdAnnotation *>(Tok.getAnnotationValue()); |
Douglas Gregor | d9b600c | 2010-01-12 17:52:59 +0000 | [diff] [blame] | 2251 | if (TemplateId->Kind == TNK_Type_template || |
| 2252 | TemplateId->Kind == TNK_Dependent_template_name) { |
Douglas Gregor | 059101f | 2011-03-02 00:47:37 +0000 | [diff] [blame] | 2253 | AnnotateTemplateIdTokenAsType(); |
Fariborz Jahanian | 9617433 | 2009-07-01 19:21:19 +0000 | [diff] [blame] | 2254 | assert(Tok.is(tok::annot_typename) && "template-id -> type failed"); |
John McCall | b3d8748 | 2010-08-24 05:47:05 +0000 | [diff] [blame] | 2255 | TemplateTypeTy = getTypeAnnotation(Tok); |
Fariborz Jahanian | 9617433 | 2009-07-01 19:21:19 +0000 | [diff] [blame] | 2256 | } |
Fariborz Jahanian | 9617433 | 2009-07-01 19:21:19 +0000 | [diff] [blame] | 2257 | } |
| 2258 | if (!TemplateTypeTy && Tok.isNot(tok::identifier)) { |
Chris Lattner | 1ab3b96 | 2008-11-18 07:48:38 +0000 | [diff] [blame] | 2259 | Diag(Tok, diag::err_expected_member_or_base_name); |
Douglas Gregor | 7ad8390 | 2008-11-05 04:29:56 +0000 | [diff] [blame] | 2260 | return true; |
| 2261 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2262 | |
Douglas Gregor | 7ad8390 | 2008-11-05 04:29:56 +0000 | [diff] [blame] | 2263 | // Get the identifier. This may be a member name or a class name, |
| 2264 | // but we'll let the semantic analysis determine which it is. |
Fariborz Jahanian | 9617433 | 2009-07-01 19:21:19 +0000 | [diff] [blame] | 2265 | IdentifierInfo *II = Tok.is(tok::identifier) ? Tok.getIdentifierInfo() : 0; |
Douglas Gregor | 7ad8390 | 2008-11-05 04:29:56 +0000 | [diff] [blame] | 2266 | SourceLocation IdLoc = ConsumeToken(); |
| 2267 | |
| 2268 | // Parse the '('. |
Sebastian Redl | dbef1bb | 2011-06-05 12:23:16 +0000 | [diff] [blame] | 2269 | if (getLang().CPlusPlus0x && Tok.is(tok::l_brace)) { |
| 2270 | // FIXME: Do something with the braced-init-list. |
| 2271 | ParseBraceInitializer(); |
Douglas Gregor | 7ad8390 | 2008-11-05 04:29:56 +0000 | [diff] [blame] | 2272 | return true; |
Sebastian Redl | dbef1bb | 2011-06-05 12:23:16 +0000 | [diff] [blame] | 2273 | } else if(Tok.is(tok::l_paren)) { |
| 2274 | SourceLocation LParenLoc = ConsumeParen(); |
Douglas Gregor | 7ad8390 | 2008-11-05 04:29:56 +0000 | [diff] [blame] | 2275 | |
Sebastian Redl | dbef1bb | 2011-06-05 12:23:16 +0000 | [diff] [blame] | 2276 | // Parse the optional expression-list. |
| 2277 | ExprVector ArgExprs(Actions); |
| 2278 | CommaLocsTy CommaLocs; |
| 2279 | if (Tok.isNot(tok::r_paren) && ParseExpressionList(ArgExprs, CommaLocs)) { |
| 2280 | SkipUntil(tok::r_paren); |
| 2281 | return true; |
| 2282 | } |
| 2283 | |
| 2284 | SourceLocation RParenLoc = MatchRHSPunctuation(tok::r_paren, LParenLoc); |
| 2285 | |
| 2286 | SourceLocation EllipsisLoc; |
| 2287 | if (Tok.is(tok::ellipsis)) |
| 2288 | EllipsisLoc = ConsumeToken(); |
| 2289 | |
| 2290 | return Actions.ActOnMemInitializer(ConstructorDecl, getCurScope(), SS, II, |
| 2291 | TemplateTypeTy, IdLoc, |
| 2292 | LParenLoc, ArgExprs.take(), |
| 2293 | ArgExprs.size(), RParenLoc, |
| 2294 | EllipsisLoc); |
Douglas Gregor | 7ad8390 | 2008-11-05 04:29:56 +0000 | [diff] [blame] | 2295 | } |
| 2296 | |
Sebastian Redl | dbef1bb | 2011-06-05 12:23:16 +0000 | [diff] [blame] | 2297 | Diag(Tok, getLang().CPlusPlus0x ? diag::err_expected_lparen_or_lbrace |
| 2298 | : diag::err_expected_lparen); |
| 2299 | return true; |
Douglas Gregor | 7ad8390 | 2008-11-05 04:29:56 +0000 | [diff] [blame] | 2300 | } |
Douglas Gregor | 0fe7bea | 2008-11-25 03:22:00 +0000 | [diff] [blame] | 2301 | |
Sebastian Redl | 7acafd0 | 2011-03-05 14:45:16 +0000 | [diff] [blame] | 2302 | /// \brief Parse a C++ exception-specification if present (C++0x [except.spec]). |
Douglas Gregor | 0fe7bea | 2008-11-25 03:22:00 +0000 | [diff] [blame] | 2303 | /// |
Douglas Gregor | a474561 | 2008-12-01 18:00:20 +0000 | [diff] [blame] | 2304 | /// exception-specification: |
Sebastian Redl | 7acafd0 | 2011-03-05 14:45:16 +0000 | [diff] [blame] | 2305 | /// dynamic-exception-specification |
| 2306 | /// noexcept-specification |
| 2307 | /// |
| 2308 | /// noexcept-specification: |
| 2309 | /// 'noexcept' |
| 2310 | /// 'noexcept' '(' constant-expression ')' |
| 2311 | ExceptionSpecificationType |
| 2312 | Parser::MaybeParseExceptionSpecification(SourceRange &SpecificationRange, |
| 2313 | llvm::SmallVectorImpl<ParsedType> &DynamicExceptions, |
| 2314 | llvm::SmallVectorImpl<SourceRange> &DynamicExceptionRanges, |
| 2315 | ExprResult &NoexceptExpr) { |
| 2316 | ExceptionSpecificationType Result = EST_None; |
| 2317 | |
| 2318 | // See if there's a dynamic specification. |
| 2319 | if (Tok.is(tok::kw_throw)) { |
| 2320 | Result = ParseDynamicExceptionSpecification(SpecificationRange, |
| 2321 | DynamicExceptions, |
| 2322 | DynamicExceptionRanges); |
| 2323 | assert(DynamicExceptions.size() == DynamicExceptionRanges.size() && |
| 2324 | "Produced different number of exception types and ranges."); |
| 2325 | } |
| 2326 | |
| 2327 | // If there's no noexcept specification, we're done. |
| 2328 | if (Tok.isNot(tok::kw_noexcept)) |
| 2329 | return Result; |
| 2330 | |
| 2331 | // If we already had a dynamic specification, parse the noexcept for, |
| 2332 | // recovery, but emit a diagnostic and don't store the results. |
| 2333 | SourceRange NoexceptRange; |
| 2334 | ExceptionSpecificationType NoexceptType = EST_None; |
| 2335 | |
| 2336 | SourceLocation KeywordLoc = ConsumeToken(); |
| 2337 | if (Tok.is(tok::l_paren)) { |
| 2338 | // There is an argument. |
| 2339 | SourceLocation LParenLoc = ConsumeParen(); |
| 2340 | NoexceptType = EST_ComputedNoexcept; |
| 2341 | NoexceptExpr = ParseConstantExpression(); |
Sebastian Redl | 60618fa | 2011-03-12 11:50:43 +0000 | [diff] [blame] | 2342 | // The argument must be contextually convertible to bool. We use |
| 2343 | // ActOnBooleanCondition for this purpose. |
| 2344 | if (!NoexceptExpr.isInvalid()) |
| 2345 | NoexceptExpr = Actions.ActOnBooleanCondition(getCurScope(), KeywordLoc, |
| 2346 | NoexceptExpr.get()); |
Sebastian Redl | 7acafd0 | 2011-03-05 14:45:16 +0000 | [diff] [blame] | 2347 | SourceLocation RParenLoc = MatchRHSPunctuation(tok::r_paren, LParenLoc); |
| 2348 | NoexceptRange = SourceRange(KeywordLoc, RParenLoc); |
| 2349 | } else { |
| 2350 | // There is no argument. |
| 2351 | NoexceptType = EST_BasicNoexcept; |
| 2352 | NoexceptRange = SourceRange(KeywordLoc, KeywordLoc); |
| 2353 | } |
| 2354 | |
| 2355 | if (Result == EST_None) { |
| 2356 | SpecificationRange = NoexceptRange; |
| 2357 | Result = NoexceptType; |
| 2358 | |
| 2359 | // If there's a dynamic specification after a noexcept specification, |
| 2360 | // parse that and ignore the results. |
| 2361 | if (Tok.is(tok::kw_throw)) { |
| 2362 | Diag(Tok.getLocation(), diag::err_dynamic_and_noexcept_specification); |
| 2363 | ParseDynamicExceptionSpecification(NoexceptRange, DynamicExceptions, |
| 2364 | DynamicExceptionRanges); |
| 2365 | } |
| 2366 | } else { |
| 2367 | Diag(Tok.getLocation(), diag::err_dynamic_and_noexcept_specification); |
| 2368 | } |
| 2369 | |
| 2370 | return Result; |
| 2371 | } |
| 2372 | |
| 2373 | /// ParseDynamicExceptionSpecification - Parse a C++ |
| 2374 | /// dynamic-exception-specification (C++ [except.spec]). |
| 2375 | /// |
| 2376 | /// dynamic-exception-specification: |
Douglas Gregor | a474561 | 2008-12-01 18:00:20 +0000 | [diff] [blame] | 2377 | /// 'throw' '(' type-id-list [opt] ')' |
| 2378 | /// [MS] 'throw' '(' '...' ')' |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2379 | /// |
Douglas Gregor | a474561 | 2008-12-01 18:00:20 +0000 | [diff] [blame] | 2380 | /// type-id-list: |
Douglas Gregor | a04426c | 2010-12-20 23:57:46 +0000 | [diff] [blame] | 2381 | /// type-id ... [opt] |
| 2382 | /// type-id-list ',' type-id ... [opt] |
Douglas Gregor | 0fe7bea | 2008-11-25 03:22:00 +0000 | [diff] [blame] | 2383 | /// |
Sebastian Redl | 7acafd0 | 2011-03-05 14:45:16 +0000 | [diff] [blame] | 2384 | ExceptionSpecificationType Parser::ParseDynamicExceptionSpecification( |
| 2385 | SourceRange &SpecificationRange, |
| 2386 | llvm::SmallVectorImpl<ParsedType> &Exceptions, |
| 2387 | llvm::SmallVectorImpl<SourceRange> &Ranges) { |
Douglas Gregor | 0fe7bea | 2008-11-25 03:22:00 +0000 | [diff] [blame] | 2388 | assert(Tok.is(tok::kw_throw) && "expected throw"); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2389 | |
Sebastian Redl | 7acafd0 | 2011-03-05 14:45:16 +0000 | [diff] [blame] | 2390 | SpecificationRange.setBegin(ConsumeToken()); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2391 | |
Douglas Gregor | 0fe7bea | 2008-11-25 03:22:00 +0000 | [diff] [blame] | 2392 | if (!Tok.is(tok::l_paren)) { |
Sebastian Redl | 7acafd0 | 2011-03-05 14:45:16 +0000 | [diff] [blame] | 2393 | Diag(Tok, diag::err_expected_lparen_after) << "throw"; |
| 2394 | SpecificationRange.setEnd(SpecificationRange.getBegin()); |
Sebastian Redl | 60618fa | 2011-03-12 11:50:43 +0000 | [diff] [blame] | 2395 | return EST_DynamicNone; |
Douglas Gregor | 0fe7bea | 2008-11-25 03:22:00 +0000 | [diff] [blame] | 2396 | } |
| 2397 | SourceLocation LParenLoc = ConsumeParen(); |
| 2398 | |
Douglas Gregor | a474561 | 2008-12-01 18:00:20 +0000 | [diff] [blame] | 2399 | // Parse throw(...), a Microsoft extension that means "this function |
| 2400 | // can throw anything". |
| 2401 | if (Tok.is(tok::ellipsis)) { |
| 2402 | SourceLocation EllipsisLoc = ConsumeToken(); |
| 2403 | if (!getLang().Microsoft) |
| 2404 | Diag(EllipsisLoc, diag::ext_ellipsis_exception_spec); |
Sebastian Redl | 7acafd0 | 2011-03-05 14:45:16 +0000 | [diff] [blame] | 2405 | SourceLocation RParenLoc = MatchRHSPunctuation(tok::r_paren, LParenLoc); |
| 2406 | SpecificationRange.setEnd(RParenLoc); |
Sebastian Redl | 60618fa | 2011-03-12 11:50:43 +0000 | [diff] [blame] | 2407 | return EST_MSAny; |
Douglas Gregor | a474561 | 2008-12-01 18:00:20 +0000 | [diff] [blame] | 2408 | } |
| 2409 | |
Douglas Gregor | 0fe7bea | 2008-11-25 03:22:00 +0000 | [diff] [blame] | 2410 | // Parse the sequence of type-ids. |
Sebastian Redl | ef65f06 | 2009-05-29 18:02:33 +0000 | [diff] [blame] | 2411 | SourceRange Range; |
Douglas Gregor | 0fe7bea | 2008-11-25 03:22:00 +0000 | [diff] [blame] | 2412 | while (Tok.isNot(tok::r_paren)) { |
Sebastian Redl | ef65f06 | 2009-05-29 18:02:33 +0000 | [diff] [blame] | 2413 | TypeResult Res(ParseTypeName(&Range)); |
Sebastian Redl | 7acafd0 | 2011-03-05 14:45:16 +0000 | [diff] [blame] | 2414 | |
Douglas Gregor | a04426c | 2010-12-20 23:57:46 +0000 | [diff] [blame] | 2415 | if (Tok.is(tok::ellipsis)) { |
| 2416 | // C++0x [temp.variadic]p5: |
| 2417 | // - In a dynamic-exception-specification (15.4); the pattern is a |
| 2418 | // type-id. |
| 2419 | SourceLocation Ellipsis = ConsumeToken(); |
Sebastian Redl | 7acafd0 | 2011-03-05 14:45:16 +0000 | [diff] [blame] | 2420 | Range.setEnd(Ellipsis); |
Douglas Gregor | a04426c | 2010-12-20 23:57:46 +0000 | [diff] [blame] | 2421 | if (!Res.isInvalid()) |
| 2422 | Res = Actions.ActOnPackExpansion(Res.get(), Ellipsis); |
| 2423 | } |
Sebastian Redl | 7acafd0 | 2011-03-05 14:45:16 +0000 | [diff] [blame] | 2424 | |
Sebastian Redl | ef65f06 | 2009-05-29 18:02:33 +0000 | [diff] [blame] | 2425 | if (!Res.isInvalid()) { |
Sebastian Redl | 7dc8134 | 2009-04-29 17:30:04 +0000 | [diff] [blame] | 2426 | Exceptions.push_back(Res.get()); |
Sebastian Redl | ef65f06 | 2009-05-29 18:02:33 +0000 | [diff] [blame] | 2427 | Ranges.push_back(Range); |
| 2428 | } |
Douglas Gregor | a04426c | 2010-12-20 23:57:46 +0000 | [diff] [blame] | 2429 | |
Douglas Gregor | 0fe7bea | 2008-11-25 03:22:00 +0000 | [diff] [blame] | 2430 | if (Tok.is(tok::comma)) |
| 2431 | ConsumeToken(); |
Sebastian Redl | 7dc8134 | 2009-04-29 17:30:04 +0000 | [diff] [blame] | 2432 | else |
Douglas Gregor | 0fe7bea | 2008-11-25 03:22:00 +0000 | [diff] [blame] | 2433 | break; |
| 2434 | } |
| 2435 | |
Sebastian Redl | 7acafd0 | 2011-03-05 14:45:16 +0000 | [diff] [blame] | 2436 | SpecificationRange.setEnd(MatchRHSPunctuation(tok::r_paren, LParenLoc)); |
Sebastian Redl | 60618fa | 2011-03-12 11:50:43 +0000 | [diff] [blame] | 2437 | return Exceptions.empty() ? EST_DynamicNone : EST_Dynamic; |
Douglas Gregor | 0fe7bea | 2008-11-25 03:22:00 +0000 | [diff] [blame] | 2438 | } |
Douglas Gregor | 6569d68 | 2009-05-27 23:11:45 +0000 | [diff] [blame] | 2439 | |
Douglas Gregor | dab60ad | 2010-10-01 18:44:50 +0000 | [diff] [blame] | 2440 | /// ParseTrailingReturnType - Parse a trailing return type on a new-style |
| 2441 | /// function declaration. |
| 2442 | TypeResult Parser::ParseTrailingReturnType() { |
| 2443 | assert(Tok.is(tok::arrow) && "expected arrow"); |
| 2444 | |
| 2445 | ConsumeToken(); |
| 2446 | |
| 2447 | // FIXME: Need to suppress declarations when parsing this typename. |
| 2448 | // Otherwise in this function definition: |
| 2449 | // |
| 2450 | // auto f() -> struct X {} |
| 2451 | // |
| 2452 | // struct X is parsed as class definition because of the trailing |
| 2453 | // brace. |
| 2454 | |
| 2455 | SourceRange Range; |
| 2456 | return ParseTypeName(&Range); |
| 2457 | } |
| 2458 | |
Douglas Gregor | 6569d68 | 2009-05-27 23:11:45 +0000 | [diff] [blame] | 2459 | /// \brief We have just started parsing the definition of a new class, |
| 2460 | /// so push that class onto our stack of classes that is currently |
| 2461 | /// being parsed. |
John McCall | eee1d54 | 2011-02-14 07:13:47 +0000 | [diff] [blame] | 2462 | Sema::ParsingClassState |
| 2463 | Parser::PushParsingClass(Decl *ClassDecl, bool NonNestedClass) { |
Douglas Gregor | 26997fd | 2010-01-16 20:52:59 +0000 | [diff] [blame] | 2464 | assert((NonNestedClass || !ClassStack.empty()) && |
Douglas Gregor | 6569d68 | 2009-05-27 23:11:45 +0000 | [diff] [blame] | 2465 | "Nested class without outer class"); |
Douglas Gregor | 26997fd | 2010-01-16 20:52:59 +0000 | [diff] [blame] | 2466 | ClassStack.push(new ParsingClass(ClassDecl, NonNestedClass)); |
John McCall | eee1d54 | 2011-02-14 07:13:47 +0000 | [diff] [blame] | 2467 | return Actions.PushParsingClass(); |
Douglas Gregor | 6569d68 | 2009-05-27 23:11:45 +0000 | [diff] [blame] | 2468 | } |
| 2469 | |
| 2470 | /// \brief Deallocate the given parsed class and all of its nested |
| 2471 | /// classes. |
| 2472 | void Parser::DeallocateParsedClasses(Parser::ParsingClass *Class) { |
Douglas Gregor | d54eb44 | 2010-10-12 16:25:54 +0000 | [diff] [blame] | 2473 | for (unsigned I = 0, N = Class->LateParsedDeclarations.size(); I != N; ++I) |
| 2474 | delete Class->LateParsedDeclarations[I]; |
Douglas Gregor | 6569d68 | 2009-05-27 23:11:45 +0000 | [diff] [blame] | 2475 | delete Class; |
| 2476 | } |
| 2477 | |
| 2478 | /// \brief Pop the top class of the stack of classes that are |
| 2479 | /// currently being parsed. |
| 2480 | /// |
| 2481 | /// This routine should be called when we have finished parsing the |
| 2482 | /// definition of a class, but have not yet popped the Scope |
| 2483 | /// associated with the class's definition. |
| 2484 | /// |
| 2485 | /// \returns true if the class we've popped is a top-level class, |
| 2486 | /// false otherwise. |
John McCall | eee1d54 | 2011-02-14 07:13:47 +0000 | [diff] [blame] | 2487 | void Parser::PopParsingClass(Sema::ParsingClassState state) { |
Douglas Gregor | 6569d68 | 2009-05-27 23:11:45 +0000 | [diff] [blame] | 2488 | assert(!ClassStack.empty() && "Mismatched push/pop for class parsing"); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2489 | |
John McCall | eee1d54 | 2011-02-14 07:13:47 +0000 | [diff] [blame] | 2490 | Actions.PopParsingClass(state); |
| 2491 | |
Douglas Gregor | 6569d68 | 2009-05-27 23:11:45 +0000 | [diff] [blame] | 2492 | ParsingClass *Victim = ClassStack.top(); |
| 2493 | ClassStack.pop(); |
| 2494 | if (Victim->TopLevelClass) { |
| 2495 | // Deallocate all of the nested classes of this class, |
| 2496 | // recursively: we don't need to keep any of this information. |
| 2497 | DeallocateParsedClasses(Victim); |
| 2498 | return; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2499 | } |
Douglas Gregor | 6569d68 | 2009-05-27 23:11:45 +0000 | [diff] [blame] | 2500 | assert(!ClassStack.empty() && "Missing top-level class?"); |
| 2501 | |
Douglas Gregor | d54eb44 | 2010-10-12 16:25:54 +0000 | [diff] [blame] | 2502 | if (Victim->LateParsedDeclarations.empty()) { |
Douglas Gregor | 6569d68 | 2009-05-27 23:11:45 +0000 | [diff] [blame] | 2503 | // The victim is a nested class, but we will not need to perform |
| 2504 | // any processing after the definition of this class since it has |
| 2505 | // no members whose handling was delayed. Therefore, we can just |
| 2506 | // remove this nested class. |
Douglas Gregor | d54eb44 | 2010-10-12 16:25:54 +0000 | [diff] [blame] | 2507 | DeallocateParsedClasses(Victim); |
Douglas Gregor | 6569d68 | 2009-05-27 23:11:45 +0000 | [diff] [blame] | 2508 | return; |
| 2509 | } |
| 2510 | |
| 2511 | // This nested class has some members that will need to be processed |
| 2512 | // after the top-level class is completely defined. Therefore, add |
| 2513 | // it to the list of nested classes within its parent. |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 2514 | assert(getCurScope()->isClassScope() && "Nested class outside of class scope?"); |
Douglas Gregor | d54eb44 | 2010-10-12 16:25:54 +0000 | [diff] [blame] | 2515 | ClassStack.top()->LateParsedDeclarations.push_back(new LateParsedClass(this, Victim)); |
Douglas Gregor | 23c94db | 2010-07-02 17:43:08 +0000 | [diff] [blame] | 2516 | Victim->TemplateScope = getCurScope()->getParent()->isTemplateParamScope(); |
Douglas Gregor | 6569d68 | 2009-05-27 23:11:45 +0000 | [diff] [blame] | 2517 | } |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 2518 | |
| 2519 | /// ParseCXX0XAttributes - Parse a C++0x attribute-specifier. Currently only |
| 2520 | /// parses standard attributes. |
| 2521 | /// |
| 2522 | /// [C++0x] attribute-specifier: |
| 2523 | /// '[' '[' attribute-list ']' ']' |
| 2524 | /// |
| 2525 | /// [C++0x] attribute-list: |
| 2526 | /// attribute[opt] |
| 2527 | /// attribute-list ',' attribute[opt] |
| 2528 | /// |
| 2529 | /// [C++0x] attribute: |
| 2530 | /// attribute-token attribute-argument-clause[opt] |
| 2531 | /// |
| 2532 | /// [C++0x] attribute-token: |
| 2533 | /// identifier |
| 2534 | /// attribute-scoped-token |
| 2535 | /// |
| 2536 | /// [C++0x] attribute-scoped-token: |
| 2537 | /// attribute-namespace '::' identifier |
| 2538 | /// |
| 2539 | /// [C++0x] attribute-namespace: |
| 2540 | /// identifier |
| 2541 | /// |
| 2542 | /// [C++0x] attribute-argument-clause: |
| 2543 | /// '(' balanced-token-seq ')' |
| 2544 | /// |
| 2545 | /// [C++0x] balanced-token-seq: |
| 2546 | /// balanced-token |
| 2547 | /// balanced-token-seq balanced-token |
| 2548 | /// |
| 2549 | /// [C++0x] balanced-token: |
| 2550 | /// '(' balanced-token-seq ')' |
| 2551 | /// '[' balanced-token-seq ']' |
| 2552 | /// '{' balanced-token-seq '}' |
| 2553 | /// any token but '(', ')', '[', ']', '{', or '}' |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 2554 | void Parser::ParseCXX0XAttributes(ParsedAttributesWithRange &attrs, |
| 2555 | SourceLocation *endLoc) { |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 2556 | assert(Tok.is(tok::l_square) && NextToken().is(tok::l_square) |
| 2557 | && "Not a C++0x attribute list"); |
| 2558 | |
| 2559 | SourceLocation StartLoc = Tok.getLocation(), Loc; |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 2560 | |
| 2561 | ConsumeBracket(); |
| 2562 | ConsumeBracket(); |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 2563 | |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 2564 | if (Tok.is(tok::comma)) { |
| 2565 | Diag(Tok.getLocation(), diag::err_expected_ident); |
| 2566 | ConsumeToken(); |
| 2567 | } |
| 2568 | |
| 2569 | while (Tok.is(tok::identifier) || Tok.is(tok::comma)) { |
| 2570 | // attribute not present |
| 2571 | if (Tok.is(tok::comma)) { |
| 2572 | ConsumeToken(); |
| 2573 | continue; |
| 2574 | } |
| 2575 | |
| 2576 | IdentifierInfo *ScopeName = 0, *AttrName = Tok.getIdentifierInfo(); |
| 2577 | SourceLocation ScopeLoc, AttrLoc = ConsumeToken(); |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 2578 | |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 2579 | // scoped attribute |
| 2580 | if (Tok.is(tok::coloncolon)) { |
| 2581 | ConsumeToken(); |
| 2582 | |
| 2583 | if (!Tok.is(tok::identifier)) { |
| 2584 | Diag(Tok.getLocation(), diag::err_expected_ident); |
| 2585 | SkipUntil(tok::r_square, tok::comma, true, true); |
| 2586 | continue; |
| 2587 | } |
Kovarththanan Rajaratnam | 1935754 | 2010-03-13 10:17:05 +0000 | [diff] [blame] | 2588 | |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 2589 | ScopeName = AttrName; |
| 2590 | ScopeLoc = AttrLoc; |
| 2591 | |
| 2592 | AttrName = Tok.getIdentifierInfo(); |
| 2593 | AttrLoc = ConsumeToken(); |
| 2594 | } |
| 2595 | |
| 2596 | bool AttrParsed = false; |
| 2597 | // No scoped names are supported; ideally we could put all non-standard |
| 2598 | // attributes into namespaces. |
| 2599 | if (!ScopeName) { |
| 2600 | switch(AttributeList::getKind(AttrName)) |
| 2601 | { |
| 2602 | // No arguments |
Sean Hunt | 7725e67 | 2009-11-25 04:20:27 +0000 | [diff] [blame] | 2603 | case AttributeList::AT_carries_dependency: |
Anders Carlsson | 15e14a2 | 2011-01-23 21:33:18 +0000 | [diff] [blame] | 2604 | case AttributeList::AT_noreturn: { |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 2605 | if (Tok.is(tok::l_paren)) { |
| 2606 | Diag(Tok.getLocation(), diag::err_cxx0x_attribute_forbids_arguments) |
| 2607 | << AttrName->getName(); |
| 2608 | break; |
| 2609 | } |
| 2610 | |
John McCall | 0b7e678 | 2011-03-24 11:26:52 +0000 | [diff] [blame] | 2611 | attrs.addNew(AttrName, AttrLoc, 0, AttrLoc, 0, |
| 2612 | SourceLocation(), 0, 0, false, true); |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 2613 | AttrParsed = true; |
| 2614 | break; |
| 2615 | } |
| 2616 | |
| 2617 | // One argument; must be a type-id or assignment-expression |
| 2618 | case AttributeList::AT_aligned: { |
| 2619 | if (Tok.isNot(tok::l_paren)) { |
| 2620 | Diag(Tok.getLocation(), diag::err_cxx0x_attribute_requires_arguments) |
| 2621 | << AttrName->getName(); |
| 2622 | break; |
| 2623 | } |
| 2624 | SourceLocation ParamLoc = ConsumeParen(); |
| 2625 | |
John McCall | 60d7b3a | 2010-08-24 06:29:42 +0000 | [diff] [blame] | 2626 | ExprResult ArgExpr = ParseCXX0XAlignArgument(ParamLoc); |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 2627 | |
| 2628 | MatchRHSPunctuation(tok::r_paren, ParamLoc); |
| 2629 | |
| 2630 | ExprVector ArgExprs(Actions); |
| 2631 | ArgExprs.push_back(ArgExpr.release()); |
John McCall | 0b7e678 | 2011-03-24 11:26:52 +0000 | [diff] [blame] | 2632 | attrs.addNew(AttrName, AttrLoc, 0, AttrLoc, |
| 2633 | 0, ParamLoc, ArgExprs.take(), 1, |
| 2634 | false, true); |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 2635 | |
| 2636 | AttrParsed = true; |
| 2637 | break; |
| 2638 | } |
| 2639 | |
| 2640 | // Silence warnings |
| 2641 | default: break; |
| 2642 | } |
| 2643 | } |
| 2644 | |
| 2645 | // Skip the entire parameter clause, if any |
| 2646 | if (!AttrParsed && Tok.is(tok::l_paren)) { |
| 2647 | ConsumeParen(); |
| 2648 | // SkipUntil maintains the balancedness of tokens. |
| 2649 | SkipUntil(tok::r_paren, false); |
| 2650 | } |
| 2651 | } |
| 2652 | |
| 2653 | if (ExpectAndConsume(tok::r_square, diag::err_expected_rsquare)) |
| 2654 | SkipUntil(tok::r_square, false); |
| 2655 | Loc = Tok.getLocation(); |
| 2656 | if (ExpectAndConsume(tok::r_square, diag::err_expected_rsquare)) |
| 2657 | SkipUntil(tok::r_square, false); |
| 2658 | |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 2659 | attrs.Range = SourceRange(StartLoc, Loc); |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 2660 | } |
| 2661 | |
| 2662 | /// ParseCXX0XAlignArgument - Parse the argument to C++0x's [[align]] |
| 2663 | /// attribute. |
| 2664 | /// |
| 2665 | /// FIXME: Simply returns an alignof() expression if the argument is a |
| 2666 | /// type. Ideally, the type should be propagated directly into Sema. |
| 2667 | /// |
| 2668 | /// [C++0x] 'align' '(' type-id ')' |
| 2669 | /// [C++0x] 'align' '(' assignment-expression ')' |
John McCall | 60d7b3a | 2010-08-24 06:29:42 +0000 | [diff] [blame] | 2670 | ExprResult Parser::ParseCXX0XAlignArgument(SourceLocation Start) { |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 2671 | if (isTypeIdInParens()) { |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 2672 | EnterExpressionEvaluationContext Unevaluated(Actions, Sema::Unevaluated); |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 2673 | SourceLocation TypeLoc = Tok.getLocation(); |
John McCall | b3d8748 | 2010-08-24 05:47:05 +0000 | [diff] [blame] | 2674 | ParsedType Ty = ParseTypeName().get(); |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 2675 | SourceRange TypeRange(Start, Tok.getLocation()); |
Peter Collingbourne | f4e3cfb | 2011-03-11 19:24:49 +0000 | [diff] [blame] | 2676 | return Actions.ActOnUnaryExprOrTypeTraitExpr(TypeLoc, UETT_AlignOf, true, |
| 2677 | Ty.getAsOpaquePtr(), TypeRange); |
Sean Hunt | bbd37c6 | 2009-11-21 08:43:09 +0000 | [diff] [blame] | 2678 | } else |
| 2679 | return ParseConstantExpression(); |
| 2680 | } |
Francois Pichet | 334d47e | 2010-10-11 12:59:39 +0000 | [diff] [blame] | 2681 | |
| 2682 | /// ParseMicrosoftAttributes - Parse a Microsoft attribute [Attr] |
| 2683 | /// |
| 2684 | /// [MS] ms-attribute: |
| 2685 | /// '[' token-seq ']' |
| 2686 | /// |
| 2687 | /// [MS] ms-attribute-seq: |
| 2688 | /// ms-attribute[opt] |
| 2689 | /// ms-attribute ms-attribute-seq |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 2690 | void Parser::ParseMicrosoftAttributes(ParsedAttributes &attrs, |
| 2691 | SourceLocation *endLoc) { |
Francois Pichet | 334d47e | 2010-10-11 12:59:39 +0000 | [diff] [blame] | 2692 | assert(Tok.is(tok::l_square) && "Not a Microsoft attribute list"); |
| 2693 | |
| 2694 | while (Tok.is(tok::l_square)) { |
| 2695 | ConsumeBracket(); |
| 2696 | SkipUntil(tok::r_square, true, true); |
John McCall | 7f040a9 | 2010-12-24 02:08:15 +0000 | [diff] [blame] | 2697 | if (endLoc) *endLoc = Tok.getLocation(); |
Francois Pichet | 334d47e | 2010-10-11 12:59:39 +0000 | [diff] [blame] | 2698 | ExpectAndConsume(tok::r_square, diag::err_expected_rsquare); |
| 2699 | } |
| 2700 | } |
Francois Pichet | 563a645 | 2011-05-25 10:19:49 +0000 | [diff] [blame] | 2701 | |
| 2702 | void Parser::ParseMicrosoftIfExistsClassDeclaration(DeclSpec::TST TagType, |
| 2703 | AccessSpecifier& CurAS) { |
| 2704 | bool Result; |
| 2705 | if (ParseMicrosoftIfExistsCondition(Result)) |
| 2706 | return; |
| 2707 | |
| 2708 | if (Tok.isNot(tok::l_brace)) { |
| 2709 | Diag(Tok, diag::err_expected_lbrace); |
| 2710 | return; |
| 2711 | } |
| 2712 | ConsumeBrace(); |
| 2713 | |
| 2714 | // Condition is false skip all inside the {}. |
| 2715 | if (!Result) { |
| 2716 | SkipUntil(tok::r_brace, false); |
| 2717 | return; |
| 2718 | } |
| 2719 | |
| 2720 | // Condition is true, parse the declaration. |
| 2721 | while (Tok.isNot(tok::r_brace)) { |
| 2722 | |
| 2723 | // __if_exists, __if_not_exists can nest. |
| 2724 | if ((Tok.is(tok::kw___if_exists) || Tok.is(tok::kw___if_not_exists))) { |
| 2725 | ParseMicrosoftIfExistsClassDeclaration((DeclSpec::TST)TagType, CurAS); |
| 2726 | continue; |
| 2727 | } |
| 2728 | |
| 2729 | // Check for extraneous top-level semicolon. |
| 2730 | if (Tok.is(tok::semi)) { |
| 2731 | Diag(Tok, diag::ext_extra_struct_semi) |
| 2732 | << DeclSpec::getSpecifierName((DeclSpec::TST)TagType) |
| 2733 | << FixItHint::CreateRemoval(Tok.getLocation()); |
| 2734 | ConsumeToken(); |
| 2735 | continue; |
| 2736 | } |
| 2737 | |
| 2738 | AccessSpecifier AS = getAccessSpecifierIfPresent(); |
| 2739 | if (AS != AS_none) { |
| 2740 | // Current token is a C++ access specifier. |
| 2741 | CurAS = AS; |
| 2742 | SourceLocation ASLoc = Tok.getLocation(); |
| 2743 | ConsumeToken(); |
| 2744 | if (Tok.is(tok::colon)) |
| 2745 | Actions.ActOnAccessSpecifier(AS, ASLoc, Tok.getLocation()); |
| 2746 | else |
| 2747 | Diag(Tok, diag::err_expected_colon); |
| 2748 | ConsumeToken(); |
| 2749 | continue; |
| 2750 | } |
| 2751 | |
| 2752 | // Parse all the comma separated declarators. |
| 2753 | ParseCXXClassMemberDeclaration(CurAS); |
| 2754 | } |
| 2755 | |
| 2756 | if (Tok.isNot(tok::r_brace)) { |
| 2757 | Diag(Tok, diag::err_expected_rbrace); |
| 2758 | return; |
| 2759 | } |
| 2760 | ConsumeBrace(); |
| 2761 | } |