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" |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 17 | #include "clang/Parse/DeclSpec.h" |
Chris Lattner | 8f08cb7 | 2007-08-25 06:57:03 +0000 | [diff] [blame] | 18 | #include "clang/Parse/Scope.h" |
Chris Lattner | bc8d564 | 2008-12-18 01:12:00 +0000 | [diff] [blame] | 19 | #include "ExtensionRAIIObject.h" |
Chris Lattner | 8f08cb7 | 2007-08-25 06:57:03 +0000 | [diff] [blame] | 20 | using namespace clang; |
| 21 | |
| 22 | /// ParseNamespace - We know that the current token is a namespace keyword. This |
| 23 | /// may either be a top level namespace or a block-level namespace alias. |
| 24 | /// |
| 25 | /// namespace-definition: [C++ 7.3: basic.namespace] |
| 26 | /// named-namespace-definition |
| 27 | /// unnamed-namespace-definition |
| 28 | /// |
| 29 | /// unnamed-namespace-definition: |
| 30 | /// 'namespace' attributes[opt] '{' namespace-body '}' |
| 31 | /// |
| 32 | /// named-namespace-definition: |
| 33 | /// original-namespace-definition |
| 34 | /// extension-namespace-definition |
| 35 | /// |
| 36 | /// original-namespace-definition: |
| 37 | /// 'namespace' identifier attributes[opt] '{' namespace-body '}' |
| 38 | /// |
| 39 | /// extension-namespace-definition: |
| 40 | /// 'namespace' original-namespace-name '{' namespace-body '}' |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 41 | /// |
Chris Lattner | 8f08cb7 | 2007-08-25 06:57:03 +0000 | [diff] [blame] | 42 | /// namespace-alias-definition: [C++ 7.3.2: namespace.alias] |
| 43 | /// 'namespace' identifier '=' qualified-namespace-specifier ';' |
| 44 | /// |
Chris Lattner | 97144fc | 2009-04-02 04:16:50 +0000 | [diff] [blame] | 45 | Parser::DeclPtrTy Parser::ParseNamespace(unsigned Context, |
| 46 | SourceLocation &DeclEnd) { |
Chris Lattner | 04d6666 | 2007-10-09 17:33:22 +0000 | [diff] [blame] | 47 | assert(Tok.is(tok::kw_namespace) && "Not a namespace!"); |
Chris Lattner | 8f08cb7 | 2007-08-25 06:57:03 +0000 | [diff] [blame] | 48 | SourceLocation NamespaceLoc = ConsumeToken(); // eat the 'namespace'. |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 49 | |
Chris Lattner | 8f08cb7 | 2007-08-25 06:57:03 +0000 | [diff] [blame] | 50 | SourceLocation IdentLoc; |
| 51 | IdentifierInfo *Ident = 0; |
Douglas Gregor | 6a588dd | 2009-06-17 19:49:00 +0000 | [diff] [blame] | 52 | |
| 53 | Token attrTok; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 54 | |
Chris Lattner | 04d6666 | 2007-10-09 17:33:22 +0000 | [diff] [blame] | 55 | if (Tok.is(tok::identifier)) { |
Chris Lattner | 8f08cb7 | 2007-08-25 06:57:03 +0000 | [diff] [blame] | 56 | Ident = Tok.getIdentifierInfo(); |
| 57 | IdentLoc = ConsumeToken(); // eat the identifier. |
| 58 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 59 | |
Chris Lattner | 8f08cb7 | 2007-08-25 06:57:03 +0000 | [diff] [blame] | 60 | // Read label attributes, if present. |
Chris Lattner | b28317a | 2009-03-28 19:18:32 +0000 | [diff] [blame] | 61 | Action::AttrTy *AttrList = 0; |
Douglas Gregor | 6a588dd | 2009-06-17 19:49:00 +0000 | [diff] [blame] | 62 | if (Tok.is(tok::kw___attribute)) { |
| 63 | attrTok = Tok; |
| 64 | |
Chris Lattner | 8f08cb7 | 2007-08-25 06:57:03 +0000 | [diff] [blame] | 65 | // FIXME: save these somewhere. |
| 66 | AttrList = ParseAttributes(); |
Douglas Gregor | 6a588dd | 2009-06-17 19:49:00 +0000 | [diff] [blame] | 67 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 68 | |
Douglas Gregor | 6a588dd | 2009-06-17 19:49:00 +0000 | [diff] [blame] | 69 | if (Tok.is(tok::equal)) { |
| 70 | if (AttrList) |
| 71 | Diag(attrTok, diag::err_unexpected_namespace_attributes_alias); |
| 72 | |
Chris Lattner | 97144fc | 2009-04-02 04:16:50 +0000 | [diff] [blame] | 73 | return ParseNamespaceAlias(NamespaceLoc, IdentLoc, Ident, DeclEnd); |
Douglas Gregor | 6a588dd | 2009-06-17 19:49:00 +0000 | [diff] [blame] | 74 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 75 | |
Chris Lattner | 5144832 | 2009-03-29 14:02:43 +0000 | [diff] [blame] | 76 | if (Tok.isNot(tok::l_brace)) { |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 77 | Diag(Tok, Ident ? diag::err_expected_lbrace : |
Chris Lattner | 5144832 | 2009-03-29 14:02:43 +0000 | [diff] [blame] | 78 | diag::err_expected_ident_lbrace); |
| 79 | return DeclPtrTy(); |
Chris Lattner | 8f08cb7 | 2007-08-25 06:57:03 +0000 | [diff] [blame] | 80 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 81 | |
Chris Lattner | 5144832 | 2009-03-29 14:02:43 +0000 | [diff] [blame] | 82 | SourceLocation LBrace = ConsumeBrace(); |
| 83 | |
| 84 | // Enter a scope for the namespace. |
| 85 | ParseScope NamespaceScope(this, Scope::DeclScope); |
| 86 | |
| 87 | DeclPtrTy NamespcDecl = |
| 88 | Actions.ActOnStartNamespaceDef(CurScope, IdentLoc, Ident, LBrace); |
| 89 | |
| 90 | PrettyStackTraceActionsDecl CrashInfo(NamespcDecl, NamespaceLoc, Actions, |
| 91 | PP.getSourceManager(), |
| 92 | "parsing namespace"); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 93 | |
Chris Lattner | 5144832 | 2009-03-29 14:02:43 +0000 | [diff] [blame] | 94 | while (Tok.isNot(tok::r_brace) && Tok.isNot(tok::eof)) |
| 95 | ParseExternalDeclaration(); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 96 | |
Chris Lattner | 5144832 | 2009-03-29 14:02:43 +0000 | [diff] [blame] | 97 | // Leave the namespace scope. |
| 98 | NamespaceScope.Exit(); |
| 99 | |
Chris Lattner | 97144fc | 2009-04-02 04:16:50 +0000 | [diff] [blame] | 100 | SourceLocation RBraceLoc = MatchRHSPunctuation(tok::r_brace, LBrace); |
| 101 | Actions.ActOnFinishNamespaceDef(NamespcDecl, RBraceLoc); |
Chris Lattner | 5144832 | 2009-03-29 14:02:43 +0000 | [diff] [blame] | 102 | |
Chris Lattner | 97144fc | 2009-04-02 04:16:50 +0000 | [diff] [blame] | 103 | DeclEnd = RBraceLoc; |
Chris Lattner | 5144832 | 2009-03-29 14:02:43 +0000 | [diff] [blame] | 104 | return NamespcDecl; |
Chris Lattner | 8f08cb7 | 2007-08-25 06:57:03 +0000 | [diff] [blame] | 105 | } |
Chris Lattner | c6fdc34 | 2008-01-12 07:05:38 +0000 | [diff] [blame] | 106 | |
Anders Carlsson | f67606a | 2009-03-28 04:07:16 +0000 | [diff] [blame] | 107 | /// ParseNamespaceAlias - Parse the part after the '=' in a namespace |
| 108 | /// alias definition. |
| 109 | /// |
Anders Carlsson | 03bd5a1 | 2009-03-28 22:53:22 +0000 | [diff] [blame] | 110 | Parser::DeclPtrTy Parser::ParseNamespaceAlias(SourceLocation NamespaceLoc, |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 111 | SourceLocation AliasLoc, |
Chris Lattner | 97144fc | 2009-04-02 04:16:50 +0000 | [diff] [blame] | 112 | IdentifierInfo *Alias, |
| 113 | SourceLocation &DeclEnd) { |
Anders Carlsson | f67606a | 2009-03-28 04:07:16 +0000 | [diff] [blame] | 114 | assert(Tok.is(tok::equal) && "Not equal token"); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 115 | |
Anders Carlsson | f67606a | 2009-03-28 04:07:16 +0000 | [diff] [blame] | 116 | ConsumeToken(); // eat the '='. |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 117 | |
Anders Carlsson | f67606a | 2009-03-28 04:07:16 +0000 | [diff] [blame] | 118 | CXXScopeSpec SS; |
| 119 | // Parse (optional) nested-name-specifier. |
Douglas Gregor | 2dd078a | 2009-09-02 22:59:36 +0000 | [diff] [blame] | 120 | ParseOptionalCXXScopeSpecifier(SS, /*ObjectType=*/0, false); |
Anders Carlsson | f67606a | 2009-03-28 04:07:16 +0000 | [diff] [blame] | 121 | |
| 122 | if (SS.isInvalid() || Tok.isNot(tok::identifier)) { |
| 123 | Diag(Tok, diag::err_expected_namespace_name); |
| 124 | // Skip to end of the definition and eat the ';'. |
| 125 | SkipUntil(tok::semi); |
Chris Lattner | b28317a | 2009-03-28 19:18:32 +0000 | [diff] [blame] | 126 | return DeclPtrTy(); |
Anders Carlsson | f67606a | 2009-03-28 04:07:16 +0000 | [diff] [blame] | 127 | } |
| 128 | |
| 129 | // Parse identifier. |
Anders Carlsson | 03bd5a1 | 2009-03-28 22:53:22 +0000 | [diff] [blame] | 130 | IdentifierInfo *Ident = Tok.getIdentifierInfo(); |
| 131 | SourceLocation IdentLoc = ConsumeToken(); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 132 | |
Anders Carlsson | f67606a | 2009-03-28 04:07:16 +0000 | [diff] [blame] | 133 | // Eat the ';'. |
Chris Lattner | 97144fc | 2009-04-02 04:16:50 +0000 | [diff] [blame] | 134 | DeclEnd = Tok.getLocation(); |
Chris Lattner | 6869d8e | 2009-06-14 00:07:48 +0000 | [diff] [blame] | 135 | ExpectAndConsume(tok::semi, diag::err_expected_semi_after_namespace_name, |
| 136 | "", tok::semi); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 137 | |
| 138 | return Actions.ActOnNamespaceAliasDef(CurScope, NamespaceLoc, AliasLoc, Alias, |
Anders Carlsson | 03bd5a1 | 2009-03-28 22:53:22 +0000 | [diff] [blame] | 139 | SS, IdentLoc, Ident); |
Anders Carlsson | f67606a | 2009-03-28 04:07:16 +0000 | [diff] [blame] | 140 | } |
| 141 | |
Chris Lattner | c6fdc34 | 2008-01-12 07:05:38 +0000 | [diff] [blame] | 142 | /// ParseLinkage - We know that the current token is a string_literal |
| 143 | /// and just before that, that extern was seen. |
| 144 | /// |
| 145 | /// linkage-specification: [C++ 7.5p2: dcl.link] |
| 146 | /// 'extern' string-literal '{' declaration-seq[opt] '}' |
| 147 | /// 'extern' string-literal declaration |
| 148 | /// |
Chris Lattner | b28317a | 2009-03-28 19:18:32 +0000 | [diff] [blame] | 149 | Parser::DeclPtrTy Parser::ParseLinkage(unsigned Context) { |
Douglas Gregor | c19923d | 2008-11-21 16:10:08 +0000 | [diff] [blame] | 150 | assert(Tok.is(tok::string_literal) && "Not a string literal!"); |
Chris Lattner | c6fdc34 | 2008-01-12 07:05:38 +0000 | [diff] [blame] | 151 | llvm::SmallVector<char, 8> LangBuffer; |
| 152 | // LangBuffer is guaranteed to be big enough. |
| 153 | LangBuffer.resize(Tok.getLength()); |
| 154 | const char *LangBufPtr = &LangBuffer[0]; |
| 155 | unsigned StrSize = PP.getSpelling(Tok, LangBufPtr); |
| 156 | |
| 157 | SourceLocation Loc = ConsumeStringToken(); |
Chris Lattner | c6fdc34 | 2008-01-12 07:05:38 +0000 | [diff] [blame] | 158 | |
Douglas Gregor | 074149e | 2009-01-05 19:45:36 +0000 | [diff] [blame] | 159 | ParseScope LinkageScope(this, Scope::DeclScope); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 160 | DeclPtrTy LinkageSpec |
| 161 | = Actions.ActOnStartLinkageSpecification(CurScope, |
Douglas Gregor | 074149e | 2009-01-05 19:45:36 +0000 | [diff] [blame] | 162 | /*FIXME: */SourceLocation(), |
| 163 | Loc, LangBufPtr, StrSize, |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 164 | Tok.is(tok::l_brace)? Tok.getLocation() |
Douglas Gregor | 074149e | 2009-01-05 19:45:36 +0000 | [diff] [blame] | 165 | : SourceLocation()); |
| 166 | |
| 167 | if (Tok.isNot(tok::l_brace)) { |
| 168 | ParseDeclarationOrFunctionDefinition(); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 169 | return Actions.ActOnFinishLinkageSpecification(CurScope, LinkageSpec, |
Douglas Gregor | 074149e | 2009-01-05 19:45:36 +0000 | [diff] [blame] | 170 | SourceLocation()); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 171 | } |
Douglas Gregor | f44515a | 2008-12-16 22:23:02 +0000 | [diff] [blame] | 172 | |
| 173 | SourceLocation LBrace = ConsumeBrace(); |
Douglas Gregor | f44515a | 2008-12-16 22:23:02 +0000 | [diff] [blame] | 174 | while (Tok.isNot(tok::r_brace) && Tok.isNot(tok::eof)) { |
Douglas Gregor | 074149e | 2009-01-05 19:45:36 +0000 | [diff] [blame] | 175 | ParseExternalDeclaration(); |
Chris Lattner | c6fdc34 | 2008-01-12 07:05:38 +0000 | [diff] [blame] | 176 | } |
| 177 | |
Douglas Gregor | f44515a | 2008-12-16 22:23:02 +0000 | [diff] [blame] | 178 | SourceLocation RBrace = MatchRHSPunctuation(tok::r_brace, LBrace); |
Douglas Gregor | 074149e | 2009-01-05 19:45:36 +0000 | [diff] [blame] | 179 | return Actions.ActOnFinishLinkageSpecification(CurScope, LinkageSpec, RBrace); |
Chris Lattner | c6fdc34 | 2008-01-12 07:05:38 +0000 | [diff] [blame] | 180 | } |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 181 | |
Douglas Gregor | f780abc | 2008-12-30 03:27:21 +0000 | [diff] [blame] | 182 | /// ParseUsingDirectiveOrDeclaration - Parse C++ using using-declaration or |
| 183 | /// using-directive. Assumes that current token is 'using'. |
Chris Lattner | 97144fc | 2009-04-02 04:16:50 +0000 | [diff] [blame] | 184 | Parser::DeclPtrTy Parser::ParseUsingDirectiveOrDeclaration(unsigned Context, |
| 185 | SourceLocation &DeclEnd) { |
Douglas Gregor | f780abc | 2008-12-30 03:27:21 +0000 | [diff] [blame] | 186 | assert(Tok.is(tok::kw_using) && "Not using token"); |
| 187 | |
| 188 | // Eat 'using'. |
| 189 | SourceLocation UsingLoc = ConsumeToken(); |
| 190 | |
Chris Lattner | 2f27477 | 2009-01-06 06:55:51 +0000 | [diff] [blame] | 191 | if (Tok.is(tok::kw_namespace)) |
Douglas Gregor | f780abc | 2008-12-30 03:27:21 +0000 | [diff] [blame] | 192 | // Next token after 'using' is 'namespace' so it must be using-directive |
Chris Lattner | 97144fc | 2009-04-02 04:16:50 +0000 | [diff] [blame] | 193 | return ParseUsingDirective(Context, UsingLoc, DeclEnd); |
Chris Lattner | 2f27477 | 2009-01-06 06:55:51 +0000 | [diff] [blame] | 194 | |
| 195 | // Otherwise, it must be using-declaration. |
Chris Lattner | 97144fc | 2009-04-02 04:16:50 +0000 | [diff] [blame] | 196 | return ParseUsingDeclaration(Context, UsingLoc, DeclEnd); |
Douglas Gregor | f780abc | 2008-12-30 03:27:21 +0000 | [diff] [blame] | 197 | } |
| 198 | |
| 199 | /// ParseUsingDirective - Parse C++ using-directive, assumes |
| 200 | /// that current token is 'namespace' and 'using' was already parsed. |
| 201 | /// |
| 202 | /// using-directive: [C++ 7.3.p4: namespace.udir] |
| 203 | /// 'using' 'namespace' ::[opt] nested-name-specifier[opt] |
| 204 | /// namespace-name ; |
| 205 | /// [GNU] using-directive: |
| 206 | /// 'using' 'namespace' ::[opt] nested-name-specifier[opt] |
| 207 | /// namespace-name attributes[opt] ; |
| 208 | /// |
Chris Lattner | b28317a | 2009-03-28 19:18:32 +0000 | [diff] [blame] | 209 | Parser::DeclPtrTy Parser::ParseUsingDirective(unsigned Context, |
Chris Lattner | 97144fc | 2009-04-02 04:16:50 +0000 | [diff] [blame] | 210 | SourceLocation UsingLoc, |
| 211 | SourceLocation &DeclEnd) { |
Douglas Gregor | f780abc | 2008-12-30 03:27:21 +0000 | [diff] [blame] | 212 | assert(Tok.is(tok::kw_namespace) && "Not 'namespace' token"); |
| 213 | |
| 214 | // Eat 'namespace'. |
| 215 | SourceLocation NamespcLoc = ConsumeToken(); |
| 216 | |
| 217 | CXXScopeSpec SS; |
| 218 | // Parse (optional) nested-name-specifier. |
Douglas Gregor | 2dd078a | 2009-09-02 22:59:36 +0000 | [diff] [blame] | 219 | ParseOptionalCXXScopeSpecifier(SS, /*ObjectType=*/0, false); |
Douglas Gregor | f780abc | 2008-12-30 03:27:21 +0000 | [diff] [blame] | 220 | |
| 221 | AttributeList *AttrList = 0; |
| 222 | IdentifierInfo *NamespcName = 0; |
| 223 | SourceLocation IdentLoc = SourceLocation(); |
| 224 | |
| 225 | // Parse namespace-name. |
Chris Lattner | 823c44e | 2009-01-06 07:27:21 +0000 | [diff] [blame] | 226 | if (SS.isInvalid() || Tok.isNot(tok::identifier)) { |
Douglas Gregor | f780abc | 2008-12-30 03:27:21 +0000 | [diff] [blame] | 227 | Diag(Tok, diag::err_expected_namespace_name); |
| 228 | // If there was invalid namespace name, skip to end of decl, and eat ';'. |
| 229 | SkipUntil(tok::semi); |
| 230 | // FIXME: Are there cases, when we would like to call ActOnUsingDirective? |
Chris Lattner | b28317a | 2009-03-28 19:18:32 +0000 | [diff] [blame] | 231 | return DeclPtrTy(); |
Douglas Gregor | f780abc | 2008-12-30 03:27:21 +0000 | [diff] [blame] | 232 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 233 | |
Chris Lattner | 823c44e | 2009-01-06 07:27:21 +0000 | [diff] [blame] | 234 | // Parse identifier. |
| 235 | NamespcName = Tok.getIdentifierInfo(); |
| 236 | IdentLoc = ConsumeToken(); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 237 | |
Chris Lattner | 823c44e | 2009-01-06 07:27:21 +0000 | [diff] [blame] | 238 | // Parse (optional) attributes (most likely GNU strong-using extension). |
| 239 | if (Tok.is(tok::kw___attribute)) |
| 240 | AttrList = ParseAttributes(); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 241 | |
Chris Lattner | 823c44e | 2009-01-06 07:27:21 +0000 | [diff] [blame] | 242 | // Eat ';'. |
Chris Lattner | 97144fc | 2009-04-02 04:16:50 +0000 | [diff] [blame] | 243 | DeclEnd = Tok.getLocation(); |
Chris Lattner | 6869d8e | 2009-06-14 00:07:48 +0000 | [diff] [blame] | 244 | ExpectAndConsume(tok::semi, |
| 245 | AttrList ? diag::err_expected_semi_after_attribute_list : |
| 246 | diag::err_expected_semi_after_namespace_name, "", tok::semi); |
Douglas Gregor | f780abc | 2008-12-30 03:27:21 +0000 | [diff] [blame] | 247 | |
| 248 | return Actions.ActOnUsingDirective(CurScope, UsingLoc, NamespcLoc, SS, |
Chris Lattner | 823c44e | 2009-01-06 07:27:21 +0000 | [diff] [blame] | 249 | IdentLoc, NamespcName, AttrList); |
Douglas Gregor | f780abc | 2008-12-30 03:27:21 +0000 | [diff] [blame] | 250 | } |
| 251 | |
| 252 | /// ParseUsingDeclaration - Parse C++ using-declaration. Assumes that |
| 253 | /// 'using' was already seen. |
| 254 | /// |
| 255 | /// using-declaration: [C++ 7.3.p3: namespace.udecl] |
| 256 | /// 'using' 'typename'[opt] ::[opt] nested-name-specifier |
Douglas Gregor | 9cfbe48 | 2009-06-20 00:51:54 +0000 | [diff] [blame] | 257 | /// unqualified-id |
| 258 | /// 'using' :: unqualified-id |
Douglas Gregor | f780abc | 2008-12-30 03:27:21 +0000 | [diff] [blame] | 259 | /// |
Chris Lattner | b28317a | 2009-03-28 19:18:32 +0000 | [diff] [blame] | 260 | Parser::DeclPtrTy Parser::ParseUsingDeclaration(unsigned Context, |
Chris Lattner | 97144fc | 2009-04-02 04:16:50 +0000 | [diff] [blame] | 261 | SourceLocation UsingLoc, |
Anders Carlsson | 595adc1 | 2009-08-29 19:54:19 +0000 | [diff] [blame] | 262 | SourceLocation &DeclEnd, |
| 263 | AccessSpecifier AS) { |
Douglas Gregor | 9cfbe48 | 2009-06-20 00:51:54 +0000 | [diff] [blame] | 264 | CXXScopeSpec SS; |
| 265 | bool IsTypeName; |
| 266 | |
| 267 | // Ignore optional 'typename'. |
| 268 | if (Tok.is(tok::kw_typename)) { |
| 269 | ConsumeToken(); |
| 270 | IsTypeName = true; |
| 271 | } |
| 272 | else |
| 273 | IsTypeName = false; |
| 274 | |
| 275 | // Parse nested-name-specifier. |
Douglas Gregor | 2dd078a | 2009-09-02 22:59:36 +0000 | [diff] [blame] | 276 | ParseOptionalCXXScopeSpecifier(SS, /*ObjectType=*/0, false); |
Douglas Gregor | 9cfbe48 | 2009-06-20 00:51:54 +0000 | [diff] [blame] | 277 | |
| 278 | AttributeList *AttrList = 0; |
Douglas Gregor | 9cfbe48 | 2009-06-20 00:51:54 +0000 | [diff] [blame] | 279 | |
| 280 | // Check nested-name specifier. |
| 281 | if (SS.isInvalid()) { |
| 282 | SkipUntil(tok::semi); |
| 283 | return DeclPtrTy(); |
| 284 | } |
| 285 | if (Tok.is(tok::annot_template_id)) { |
Anders Carlsson | 73b39cf | 2009-08-28 03:35:18 +0000 | [diff] [blame] | 286 | // C++0x N2914 [namespace.udecl]p5: |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 287 | // A using-declaration shall not name a template-id. |
Anders Carlsson | 73b39cf | 2009-08-28 03:35:18 +0000 | [diff] [blame] | 288 | Diag(Tok, diag::err_using_decl_can_not_refer_to_template_spec); |
Douglas Gregor | 9cfbe48 | 2009-06-20 00:51:54 +0000 | [diff] [blame] | 289 | SkipUntil(tok::semi); |
| 290 | return DeclPtrTy(); |
| 291 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 292 | |
Anders Carlsson | 0c6139d | 2009-06-27 00:27:47 +0000 | [diff] [blame] | 293 | IdentifierInfo *TargetName = 0; |
| 294 | OverloadedOperatorKind Op = OO_None; |
| 295 | SourceLocation IdentLoc; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 296 | |
Anders Carlsson | 0c6139d | 2009-06-27 00:27:47 +0000 | [diff] [blame] | 297 | if (Tok.is(tok::kw_operator)) { |
| 298 | IdentLoc = Tok.getLocation(); |
| 299 | |
| 300 | Op = TryParseOperatorFunctionId(); |
| 301 | if (!Op) { |
| 302 | // If there was an invalid operator, skip to end of decl, and eat ';'. |
| 303 | SkipUntil(tok::semi); |
| 304 | return DeclPtrTy(); |
| 305 | } |
| 306 | } else if (Tok.is(tok::identifier)) { |
| 307 | // Parse identifier. |
| 308 | TargetName = Tok.getIdentifierInfo(); |
| 309 | IdentLoc = ConsumeToken(); |
| 310 | } else { |
| 311 | // FIXME: Use a better diagnostic here. |
Douglas Gregor | 9cfbe48 | 2009-06-20 00:51:54 +0000 | [diff] [blame] | 312 | Diag(Tok, diag::err_expected_ident_in_using); |
Anders Carlsson | 0c6139d | 2009-06-27 00:27:47 +0000 | [diff] [blame] | 313 | |
Douglas Gregor | 9cfbe48 | 2009-06-20 00:51:54 +0000 | [diff] [blame] | 314 | // If there was invalid identifier, skip to end of decl, and eat ';'. |
| 315 | SkipUntil(tok::semi); |
| 316 | return DeclPtrTy(); |
| 317 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 318 | |
Douglas Gregor | 9cfbe48 | 2009-06-20 00:51:54 +0000 | [diff] [blame] | 319 | // Parse (optional) attributes (most likely GNU strong-using extension). |
| 320 | if (Tok.is(tok::kw___attribute)) |
| 321 | AttrList = ParseAttributes(); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 322 | |
Douglas Gregor | 9cfbe48 | 2009-06-20 00:51:54 +0000 | [diff] [blame] | 323 | // Eat ';'. |
| 324 | DeclEnd = Tok.getLocation(); |
| 325 | ExpectAndConsume(tok::semi, diag::err_expected_semi_after, |
| 326 | AttrList ? "attributes list" : "namespace name", tok::semi); |
| 327 | |
Anders Carlsson | 595adc1 | 2009-08-29 19:54:19 +0000 | [diff] [blame] | 328 | return Actions.ActOnUsingDeclaration(CurScope, AS, UsingLoc, SS, |
Anders Carlsson | 0c6139d | 2009-06-27 00:27:47 +0000 | [diff] [blame] | 329 | IdentLoc, TargetName, Op, |
| 330 | AttrList, IsTypeName); |
Douglas Gregor | f780abc | 2008-12-30 03:27:21 +0000 | [diff] [blame] | 331 | } |
| 332 | |
Anders Carlsson | 511d7ab | 2009-03-11 16:27:10 +0000 | [diff] [blame] | 333 | /// ParseStaticAssertDeclaration - Parse C++0x static_assert-declaratoion. |
| 334 | /// |
| 335 | /// static_assert-declaration: |
| 336 | /// static_assert ( constant-expression , string-literal ) ; |
| 337 | /// |
Chris Lattner | 97144fc | 2009-04-02 04:16:50 +0000 | [diff] [blame] | 338 | Parser::DeclPtrTy Parser::ParseStaticAssertDeclaration(SourceLocation &DeclEnd){ |
Anders Carlsson | 511d7ab | 2009-03-11 16:27:10 +0000 | [diff] [blame] | 339 | assert(Tok.is(tok::kw_static_assert) && "Not a static_assert declaration"); |
| 340 | SourceLocation StaticAssertLoc = ConsumeToken(); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 341 | |
Anders Carlsson | 511d7ab | 2009-03-11 16:27:10 +0000 | [diff] [blame] | 342 | if (Tok.isNot(tok::l_paren)) { |
| 343 | Diag(Tok, diag::err_expected_lparen); |
Chris Lattner | b28317a | 2009-03-28 19:18:32 +0000 | [diff] [blame] | 344 | return DeclPtrTy(); |
Anders Carlsson | 511d7ab | 2009-03-11 16:27:10 +0000 | [diff] [blame] | 345 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 346 | |
Anders Carlsson | 511d7ab | 2009-03-11 16:27:10 +0000 | [diff] [blame] | 347 | SourceLocation LParenLoc = ConsumeParen(); |
Douglas Gregor | e0762c9 | 2009-06-19 23:52:42 +0000 | [diff] [blame] | 348 | |
Anders Carlsson | 511d7ab | 2009-03-11 16:27:10 +0000 | [diff] [blame] | 349 | OwningExprResult AssertExpr(ParseConstantExpression()); |
| 350 | if (AssertExpr.isInvalid()) { |
| 351 | SkipUntil(tok::semi); |
Chris Lattner | b28317a | 2009-03-28 19:18:32 +0000 | [diff] [blame] | 352 | return DeclPtrTy(); |
Anders Carlsson | 511d7ab | 2009-03-11 16:27:10 +0000 | [diff] [blame] | 353 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 354 | |
Anders Carlsson | ad5f960 | 2009-03-13 23:29:20 +0000 | [diff] [blame] | 355 | if (ExpectAndConsume(tok::comma, diag::err_expected_comma, "", tok::semi)) |
Chris Lattner | b28317a | 2009-03-28 19:18:32 +0000 | [diff] [blame] | 356 | return DeclPtrTy(); |
Anders Carlsson | ad5f960 | 2009-03-13 23:29:20 +0000 | [diff] [blame] | 357 | |
Anders Carlsson | 511d7ab | 2009-03-11 16:27:10 +0000 | [diff] [blame] | 358 | if (Tok.isNot(tok::string_literal)) { |
| 359 | Diag(Tok, diag::err_expected_string_literal); |
| 360 | SkipUntil(tok::semi); |
Chris Lattner | b28317a | 2009-03-28 19:18:32 +0000 | [diff] [blame] | 361 | return DeclPtrTy(); |
Anders Carlsson | 511d7ab | 2009-03-11 16:27:10 +0000 | [diff] [blame] | 362 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 363 | |
Anders Carlsson | 511d7ab | 2009-03-11 16:27:10 +0000 | [diff] [blame] | 364 | OwningExprResult AssertMessage(ParseStringLiteralExpression()); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 365 | if (AssertMessage.isInvalid()) |
Chris Lattner | b28317a | 2009-03-28 19:18:32 +0000 | [diff] [blame] | 366 | return DeclPtrTy(); |
Anders Carlsson | 511d7ab | 2009-03-11 16:27:10 +0000 | [diff] [blame] | 367 | |
Anders Carlsson | 94b15fb | 2009-03-15 18:44:04 +0000 | [diff] [blame] | 368 | MatchRHSPunctuation(tok::r_paren, LParenLoc); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 369 | |
Chris Lattner | 97144fc | 2009-04-02 04:16:50 +0000 | [diff] [blame] | 370 | DeclEnd = Tok.getLocation(); |
Anders Carlsson | 511d7ab | 2009-03-11 16:27:10 +0000 | [diff] [blame] | 371 | ExpectAndConsume(tok::semi, diag::err_expected_semi_after_static_assert); |
| 372 | |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 373 | return Actions.ActOnStaticAssertDeclaration(StaticAssertLoc, move(AssertExpr), |
Anders Carlsson | 94b15fb | 2009-03-15 18:44:04 +0000 | [diff] [blame] | 374 | move(AssertMessage)); |
Anders Carlsson | 511d7ab | 2009-03-11 16:27:10 +0000 | [diff] [blame] | 375 | } |
| 376 | |
Anders Carlsson | 6fd634f | 2009-06-24 17:47:40 +0000 | [diff] [blame] | 377 | /// ParseDecltypeSpecifier - Parse a C++0x decltype specifier. |
| 378 | /// |
| 379 | /// 'decltype' ( expression ) |
| 380 | /// |
| 381 | void Parser::ParseDecltypeSpecifier(DeclSpec &DS) { |
| 382 | assert(Tok.is(tok::kw_decltype) && "Not a decltype specifier"); |
| 383 | |
| 384 | SourceLocation StartLoc = ConsumeToken(); |
| 385 | SourceLocation LParenLoc = Tok.getLocation(); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 386 | |
| 387 | if (ExpectAndConsume(tok::l_paren, diag::err_expected_lparen_after, |
Anders Carlsson | 6fd634f | 2009-06-24 17:47:40 +0000 | [diff] [blame] | 388 | "decltype")) { |
| 389 | SkipUntil(tok::r_paren); |
| 390 | return; |
| 391 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 392 | |
Anders Carlsson | 6fd634f | 2009-06-24 17:47:40 +0000 | [diff] [blame] | 393 | // Parse the expression |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 394 | |
Anders Carlsson | 6fd634f | 2009-06-24 17:47:40 +0000 | [diff] [blame] | 395 | // C++0x [dcl.type.simple]p4: |
| 396 | // The operand of the decltype specifier is an unevaluated operand. |
| 397 | EnterExpressionEvaluationContext Unevaluated(Actions, |
| 398 | Action::Unevaluated); |
| 399 | OwningExprResult Result = ParseExpression(); |
| 400 | if (Result.isInvalid()) { |
| 401 | SkipUntil(tok::r_paren); |
| 402 | return; |
| 403 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 404 | |
Anders Carlsson | 6fd634f | 2009-06-24 17:47:40 +0000 | [diff] [blame] | 405 | // Match the ')' |
| 406 | SourceLocation RParenLoc; |
| 407 | if (Tok.is(tok::r_paren)) |
| 408 | RParenLoc = ConsumeParen(); |
| 409 | else |
| 410 | MatchRHSPunctuation(tok::r_paren, LParenLoc); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 411 | |
Anders Carlsson | 6fd634f | 2009-06-24 17:47:40 +0000 | [diff] [blame] | 412 | if (RParenLoc.isInvalid()) |
| 413 | return; |
| 414 | |
| 415 | const char *PrevSpec = 0; |
John McCall | fec5401 | 2009-08-03 20:12:06 +0000 | [diff] [blame] | 416 | unsigned DiagID; |
Anders Carlsson | 6fd634f | 2009-06-24 17:47:40 +0000 | [diff] [blame] | 417 | // Check for duplicate type specifiers (e.g. "int decltype(a)"). |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 418 | if (DS.SetTypeSpecType(DeclSpec::TST_decltype, StartLoc, PrevSpec, |
John McCall | fec5401 | 2009-08-03 20:12:06 +0000 | [diff] [blame] | 419 | DiagID, Result.release())) |
| 420 | Diag(StartLoc, DiagID) << PrevSpec; |
Anders Carlsson | 6fd634f | 2009-06-24 17:47:40 +0000 | [diff] [blame] | 421 | } |
| 422 | |
Douglas Gregor | 42a552f | 2008-11-05 20:51:48 +0000 | [diff] [blame] | 423 | /// ParseClassName - Parse a C++ class-name, which names a class. Note |
| 424 | /// that we only check that the result names a type; semantic analysis |
| 425 | /// 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] | 426 | /// either a type or NULL, depending on whether a type name was |
Douglas Gregor | 42a552f | 2008-11-05 20:51:48 +0000 | [diff] [blame] | 427 | /// found. |
| 428 | /// |
| 429 | /// class-name: [C++ 9.1] |
| 430 | /// identifier |
Douglas Gregor | 7f43d67 | 2009-02-25 23:52:28 +0000 | [diff] [blame] | 431 | /// simple-template-id |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 432 | /// |
Douglas Gregor | 31a19b6 | 2009-04-01 21:51:26 +0000 | [diff] [blame] | 433 | Parser::TypeResult Parser::ParseClassName(SourceLocation &EndLocation, |
Fariborz Jahanian | d33c868 | 2009-07-20 17:43:15 +0000 | [diff] [blame] | 434 | const CXXScopeSpec *SS, |
| 435 | bool DestrExpected) { |
Douglas Gregor | 7f43d67 | 2009-02-25 23:52:28 +0000 | [diff] [blame] | 436 | // Check whether we have a template-id that names a type. |
| 437 | if (Tok.is(tok::annot_template_id)) { |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 438 | TemplateIdAnnotation *TemplateId |
Douglas Gregor | 7f43d67 | 2009-02-25 23:52:28 +0000 | [diff] [blame] | 439 | = static_cast<TemplateIdAnnotation *>(Tok.getAnnotationValue()); |
Douglas Gregor | c45c232 | 2009-03-31 00:43:58 +0000 | [diff] [blame] | 440 | if (TemplateId->Kind == TNK_Type_template) { |
Douglas Gregor | 31a19b6 | 2009-04-01 21:51:26 +0000 | [diff] [blame] | 441 | AnnotateTemplateIdTokenAsType(SS); |
Douglas Gregor | 7f43d67 | 2009-02-25 23:52:28 +0000 | [diff] [blame] | 442 | |
| 443 | assert(Tok.is(tok::annot_typename) && "template-id -> type failed"); |
| 444 | TypeTy *Type = Tok.getAnnotationValue(); |
| 445 | EndLocation = Tok.getAnnotationEndLoc(); |
| 446 | ConsumeToken(); |
Douglas Gregor | 31a19b6 | 2009-04-01 21:51:26 +0000 | [diff] [blame] | 447 | |
| 448 | if (Type) |
| 449 | return Type; |
| 450 | return true; |
Douglas Gregor | 7f43d67 | 2009-02-25 23:52:28 +0000 | [diff] [blame] | 451 | } |
| 452 | |
| 453 | // Fall through to produce an error below. |
| 454 | } |
| 455 | |
Douglas Gregor | 42a552f | 2008-11-05 20:51:48 +0000 | [diff] [blame] | 456 | if (Tok.isNot(tok::identifier)) { |
Chris Lattner | 1ab3b96 | 2008-11-18 07:48:38 +0000 | [diff] [blame] | 457 | Diag(Tok, diag::err_expected_class_name); |
Douglas Gregor | 31a19b6 | 2009-04-01 21:51:26 +0000 | [diff] [blame] | 458 | return true; |
Douglas Gregor | 42a552f | 2008-11-05 20:51:48 +0000 | [diff] [blame] | 459 | } |
| 460 | |
| 461 | // We have an identifier; check whether it is actually a type. |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 462 | TypeTy *Type = Actions.getTypeName(*Tok.getIdentifierInfo(), |
Douglas Gregor | 42c39f3 | 2009-08-26 18:27:52 +0000 | [diff] [blame] | 463 | Tok.getLocation(), CurScope, SS, |
| 464 | true); |
Douglas Gregor | 42a552f | 2008-11-05 20:51:48 +0000 | [diff] [blame] | 465 | if (!Type) { |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 466 | Diag(Tok, DestrExpected ? diag::err_destructor_class_name |
Fariborz Jahanian | d33c868 | 2009-07-20 17:43:15 +0000 | [diff] [blame] | 467 | : diag::err_expected_class_name); |
Douglas Gregor | 31a19b6 | 2009-04-01 21:51:26 +0000 | [diff] [blame] | 468 | return true; |
Douglas Gregor | 42a552f | 2008-11-05 20:51:48 +0000 | [diff] [blame] | 469 | } |
| 470 | |
| 471 | // Consume the identifier. |
Douglas Gregor | 7f43d67 | 2009-02-25 23:52:28 +0000 | [diff] [blame] | 472 | EndLocation = ConsumeToken(); |
Douglas Gregor | 42a552f | 2008-11-05 20:51:48 +0000 | [diff] [blame] | 473 | return Type; |
| 474 | } |
| 475 | |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 476 | /// ParseClassSpecifier - Parse a C++ class-specifier [C++ class] or |
| 477 | /// elaborated-type-specifier [C++ dcl.type.elab]; we can't tell which |
| 478 | /// until we reach the start of a definition or see a token that |
| 479 | /// cannot start a definition. |
| 480 | /// |
| 481 | /// class-specifier: [C++ class] |
| 482 | /// class-head '{' member-specification[opt] '}' |
| 483 | /// class-head '{' member-specification[opt] '}' attributes[opt] |
| 484 | /// class-head: |
| 485 | /// class-key identifier[opt] base-clause[opt] |
| 486 | /// class-key nested-name-specifier identifier base-clause[opt] |
| 487 | /// class-key nested-name-specifier[opt] simple-template-id |
| 488 | /// base-clause[opt] |
| 489 | /// [GNU] class-key attributes[opt] identifier[opt] base-clause[opt] |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 490 | /// [GNU] class-key attributes[opt] nested-name-specifier |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 491 | /// identifier base-clause[opt] |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 492 | /// [GNU] class-key attributes[opt] nested-name-specifier[opt] |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 493 | /// simple-template-id base-clause[opt] |
| 494 | /// class-key: |
| 495 | /// 'class' |
| 496 | /// 'struct' |
| 497 | /// 'union' |
| 498 | /// |
| 499 | /// elaborated-type-specifier: [C++ dcl.type.elab] |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 500 | /// class-key ::[opt] nested-name-specifier[opt] identifier |
| 501 | /// class-key ::[opt] nested-name-specifier[opt] 'template'[opt] |
| 502 | /// simple-template-id |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 503 | /// |
| 504 | /// Note that the C++ class-specifier and elaborated-type-specifier, |
| 505 | /// together, subsume the C99 struct-or-union-specifier: |
| 506 | /// |
| 507 | /// struct-or-union-specifier: [C99 6.7.2.1] |
| 508 | /// struct-or-union identifier[opt] '{' struct-contents '}' |
| 509 | /// struct-or-union identifier |
| 510 | /// [GNU] struct-or-union attributes[opt] identifier[opt] '{' struct-contents |
| 511 | /// '}' attributes[opt] |
| 512 | /// [GNU] struct-or-union attributes[opt] identifier |
| 513 | /// struct-or-union: |
| 514 | /// 'struct' |
| 515 | /// 'union' |
Chris Lattner | 4c97d76 | 2009-04-12 21:49:30 +0000 | [diff] [blame] | 516 | void Parser::ParseClassSpecifier(tok::TokenKind TagTokKind, |
| 517 | SourceLocation StartLoc, DeclSpec &DS, |
Douglas Gregor | 4d9a16f | 2009-05-12 23:25:50 +0000 | [diff] [blame] | 518 | const ParsedTemplateInfo &TemplateInfo, |
Douglas Gregor | 06c0fec | 2009-03-25 22:00:53 +0000 | [diff] [blame] | 519 | AccessSpecifier AS) { |
Chris Lattner | 4c97d76 | 2009-04-12 21:49:30 +0000 | [diff] [blame] | 520 | DeclSpec::TST TagType; |
| 521 | if (TagTokKind == tok::kw_struct) |
| 522 | TagType = DeclSpec::TST_struct; |
| 523 | else if (TagTokKind == tok::kw_class) |
| 524 | TagType = DeclSpec::TST_class; |
| 525 | else { |
| 526 | assert(TagTokKind == tok::kw_union && "Not a class specifier"); |
| 527 | TagType = DeclSpec::TST_union; |
| 528 | } |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 529 | |
Douglas Gregor | 374929f | 2009-09-18 15:37:17 +0000 | [diff] [blame^] | 530 | if (Tok.is(tok::code_completion)) { |
| 531 | // Code completion for a struct, class, or union name. |
| 532 | Actions.CodeCompleteTag(CurScope, TagType); |
| 533 | ConsumeToken(); |
| 534 | } |
| 535 | |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 536 | AttributeList *Attr = 0; |
| 537 | // If attributes exist after tag, parse them. |
| 538 | if (Tok.is(tok::kw___attribute)) |
| 539 | Attr = ParseAttributes(); |
| 540 | |
Steve Naroff | f59e17e | 2008-12-24 20:59:21 +0000 | [diff] [blame] | 541 | // If declspecs exist after tag, parse them. |
Eli Friedman | 290eeb0 | 2009-06-08 23:27:34 +0000 | [diff] [blame] | 542 | if (Tok.is(tok::kw___declspec)) |
| 543 | Attr = ParseMicrosoftDeclSpec(Attr); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 544 | |
Douglas Gregor | b117a60 | 2009-09-04 05:53:02 +0000 | [diff] [blame] | 545 | if (TagType == DeclSpec::TST_struct && Tok.is(tok::kw___is_pod)) { |
| 546 | // GNU libstdc++ 4.2 uses __is_pod as the name of a struct template, but |
| 547 | // __is_pod is a keyword in GCC >= 4.3. Therefore, when we see the |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 548 | // token sequence "struct __is_pod", make __is_pod into a normal |
Douglas Gregor | b117a60 | 2009-09-04 05:53:02 +0000 | [diff] [blame] | 549 | // identifier rather than a keyword, to allow libstdc++ 4.2 to work |
| 550 | // properly. |
| 551 | Tok.getIdentifierInfo()->setTokenID(tok::identifier); |
| 552 | Tok.setKind(tok::identifier); |
| 553 | } |
| 554 | |
| 555 | if (TagType == DeclSpec::TST_struct && Tok.is(tok::kw___is_empty)) { |
| 556 | // GNU libstdc++ 4.2 uses __is_empty as the name of a struct template, but |
| 557 | // __is_empty is a keyword in GCC >= 4.3. Therefore, when we see the |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 558 | // token sequence "struct __is_empty", make __is_empty into a normal |
Douglas Gregor | b117a60 | 2009-09-04 05:53:02 +0000 | [diff] [blame] | 559 | // identifier rather than a keyword, to allow libstdc++ 4.2 to work |
| 560 | // properly. |
| 561 | Tok.getIdentifierInfo()->setTokenID(tok::identifier); |
| 562 | Tok.setKind(tok::identifier); |
| 563 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 564 | |
Argyrios Kyrtzidis | eb83ecd | 2008-11-08 16:45:02 +0000 | [diff] [blame] | 565 | // Parse the (optional) nested-name-specifier. |
| 566 | CXXScopeSpec SS; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 567 | if (getLang().CPlusPlus && |
Douglas Gregor | 2dd078a | 2009-09-02 22:59:36 +0000 | [diff] [blame] | 568 | ParseOptionalCXXScopeSpecifier(SS, /*ObjectType=*/0, true)) |
Douglas Gregor | 39a8de1 | 2009-02-25 19:37:18 +0000 | [diff] [blame] | 569 | if (Tok.isNot(tok::identifier) && Tok.isNot(tok::annot_template_id)) |
Argyrios Kyrtzidis | eb83ecd | 2008-11-08 16:45:02 +0000 | [diff] [blame] | 570 | Diag(Tok, diag::err_expected_ident); |
Douglas Gregor | cc63668 | 2009-02-17 23:15:12 +0000 | [diff] [blame] | 571 | |
| 572 | // Parse the (optional) class name or simple-template-id. |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 573 | IdentifierInfo *Name = 0; |
| 574 | SourceLocation NameLoc; |
Douglas Gregor | 39a8de1 | 2009-02-25 19:37:18 +0000 | [diff] [blame] | 575 | TemplateIdAnnotation *TemplateId = 0; |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 576 | if (Tok.is(tok::identifier)) { |
| 577 | Name = Tok.getIdentifierInfo(); |
| 578 | NameLoc = ConsumeToken(); |
Douglas Gregor | 39a8de1 | 2009-02-25 19:37:18 +0000 | [diff] [blame] | 579 | } else if (Tok.is(tok::annot_template_id)) { |
| 580 | TemplateId = static_cast<TemplateIdAnnotation *>(Tok.getAnnotationValue()); |
| 581 | NameLoc = ConsumeToken(); |
Douglas Gregor | cc63668 | 2009-02-17 23:15:12 +0000 | [diff] [blame] | 582 | |
Douglas Gregor | c45c232 | 2009-03-31 00:43:58 +0000 | [diff] [blame] | 583 | if (TemplateId->Kind != TNK_Type_template) { |
Douglas Gregor | 39a8de1 | 2009-02-25 19:37:18 +0000 | [diff] [blame] | 584 | // The template-name in the simple-template-id refers to |
| 585 | // something other than a class template. Give an appropriate |
| 586 | // error message and skip to the ';'. |
| 587 | SourceRange Range(NameLoc); |
| 588 | if (SS.isNotEmpty()) |
| 589 | Range.setBegin(SS.getBeginLoc()); |
Douglas Gregor | cc63668 | 2009-02-17 23:15:12 +0000 | [diff] [blame] | 590 | |
Douglas Gregor | 39a8de1 | 2009-02-25 19:37:18 +0000 | [diff] [blame] | 591 | Diag(TemplateId->LAngleLoc, diag::err_template_spec_syntax_non_template) |
| 592 | << Name << static_cast<int>(TemplateId->Kind) << Range; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 593 | |
Douglas Gregor | 39a8de1 | 2009-02-25 19:37:18 +0000 | [diff] [blame] | 594 | DS.SetTypeSpecError(); |
| 595 | SkipUntil(tok::semi, false, true); |
| 596 | TemplateId->Destroy(); |
| 597 | return; |
Douglas Gregor | cc63668 | 2009-02-17 23:15:12 +0000 | [diff] [blame] | 598 | } |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 599 | } |
| 600 | |
John McCall | 67d1a67 | 2009-08-06 02:15:43 +0000 | [diff] [blame] | 601 | // There are four options here. If we have 'struct foo;', then this |
| 602 | // is either a forward declaration or a friend declaration, which |
| 603 | // have to be treated differently. If we have 'struct foo {...' or |
Douglas Gregor | 39a8de1 | 2009-02-25 19:37:18 +0000 | [diff] [blame] | 604 | // 'struct foo :...' then this is a definition. Otherwise we have |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 605 | // something like 'struct foo xyz', a reference. |
John McCall | 0f434ec | 2009-07-31 02:45:11 +0000 | [diff] [blame] | 606 | Action::TagUseKind TUK; |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 607 | if (Tok.is(tok::l_brace) || (getLang().CPlusPlus && Tok.is(tok::colon))) |
John McCall | 0f434ec | 2009-07-31 02:45:11 +0000 | [diff] [blame] | 608 | TUK = Action::TUK_Definition; |
John McCall | 67d1a67 | 2009-08-06 02:15:43 +0000 | [diff] [blame] | 609 | else if (Tok.is(tok::semi)) |
| 610 | TUK = DS.isFriendSpecified() ? Action::TUK_Friend : Action::TUK_Declaration; |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 611 | else |
John McCall | 0f434ec | 2009-07-31 02:45:11 +0000 | [diff] [blame] | 612 | TUK = Action::TUK_Reference; |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 613 | |
John McCall | 0f434ec | 2009-07-31 02:45:11 +0000 | [diff] [blame] | 614 | if (!Name && !TemplateId && TUK != Action::TUK_Definition) { |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 615 | // We have a declaration or reference to an anonymous class. |
Chris Lattner | 1ab3b96 | 2008-11-18 07:48:38 +0000 | [diff] [blame] | 616 | Diag(StartLoc, diag::err_anon_type_definition) |
| 617 | << DeclSpec::getSpecifierName(TagType); |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 618 | |
| 619 | // Skip the rest of this declarator, up until the comma or semicolon. |
| 620 | SkipUntil(tok::comma, true); |
Douglas Gregor | 39a8de1 | 2009-02-25 19:37:18 +0000 | [diff] [blame] | 621 | |
| 622 | if (TemplateId) |
| 623 | TemplateId->Destroy(); |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 624 | return; |
| 625 | } |
| 626 | |
Douglas Gregor | ddc29e1 | 2009-02-06 22:42:48 +0000 | [diff] [blame] | 627 | // Create the tag portion of the class or class template. |
John McCall | c4e7019 | 2009-09-11 04:59:25 +0000 | [diff] [blame] | 628 | Action::DeclResult TagOrTempResult = true; // invalid |
| 629 | Action::TypeResult TypeResult = true; // invalid |
Douglas Gregor | 4d9a16f | 2009-05-12 23:25:50 +0000 | [diff] [blame] | 630 | TemplateParameterLists *TemplateParams = TemplateInfo.TemplateParams; |
| 631 | |
John McCall | 0f434ec | 2009-07-31 02:45:11 +0000 | [diff] [blame] | 632 | // FIXME: When TUK == TUK_Reference and we have a template-id, we need |
Douglas Gregor | 4d9a16f | 2009-05-12 23:25:50 +0000 | [diff] [blame] | 633 | // to turn that template-id into a type. |
| 634 | |
Douglas Gregor | 402abb5 | 2009-05-28 23:31:59 +0000 | [diff] [blame] | 635 | bool Owned = false; |
John McCall | f1bbbb4 | 2009-09-04 01:14:41 +0000 | [diff] [blame] | 636 | if (TemplateId) { |
Douglas Gregor | 4d9a16f | 2009-05-12 23:25:50 +0000 | [diff] [blame] | 637 | // Explicit specialization, class template partial specialization, |
| 638 | // or explicit instantiation. |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 639 | ASTTemplateArgsPtr TemplateArgsPtr(Actions, |
Douglas Gregor | 39a8de1 | 2009-02-25 19:37:18 +0000 | [diff] [blame] | 640 | TemplateId->getTemplateArgs(), |
| 641 | TemplateId->getTemplateArgIsType(), |
| 642 | TemplateId->NumArgs); |
Douglas Gregor | 4d9a16f | 2009-05-12 23:25:50 +0000 | [diff] [blame] | 643 | if (TemplateInfo.Kind == ParsedTemplateInfo::ExplicitInstantiation && |
John McCall | 0f434ec | 2009-07-31 02:45:11 +0000 | [diff] [blame] | 644 | TUK == Action::TUK_Declaration) { |
Douglas Gregor | 4d9a16f | 2009-05-12 23:25:50 +0000 | [diff] [blame] | 645 | // This is an explicit instantiation of a class template. |
| 646 | TagOrTempResult |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 647 | = Actions.ActOnExplicitInstantiation(CurScope, |
Douglas Gregor | 45f9655 | 2009-09-04 06:33:52 +0000 | [diff] [blame] | 648 | TemplateInfo.ExternLoc, |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 649 | TemplateInfo.TemplateLoc, |
Douglas Gregor | 4d9a16f | 2009-05-12 23:25:50 +0000 | [diff] [blame] | 650 | TagType, |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 651 | StartLoc, |
Douglas Gregor | 4d9a16f | 2009-05-12 23:25:50 +0000 | [diff] [blame] | 652 | SS, |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 653 | TemplateTy::make(TemplateId->Template), |
| 654 | TemplateId->TemplateNameLoc, |
| 655 | TemplateId->LAngleLoc, |
Douglas Gregor | 4d9a16f | 2009-05-12 23:25:50 +0000 | [diff] [blame] | 656 | TemplateArgsPtr, |
| 657 | TemplateId->getTemplateArgLocations(), |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 658 | TemplateId->RAngleLoc, |
Douglas Gregor | 4d9a16f | 2009-05-12 23:25:50 +0000 | [diff] [blame] | 659 | Attr); |
John McCall | f1bbbb4 | 2009-09-04 01:14:41 +0000 | [diff] [blame] | 660 | } else if (TUK == Action::TUK_Reference || TUK == Action::TUK_Friend) { |
John McCall | c4e7019 | 2009-09-11 04:59:25 +0000 | [diff] [blame] | 661 | TypeResult |
John McCall | 6b2becf | 2009-09-08 17:47:29 +0000 | [diff] [blame] | 662 | = Actions.ActOnTemplateIdType(TemplateTy::make(TemplateId->Template), |
| 663 | TemplateId->TemplateNameLoc, |
| 664 | TemplateId->LAngleLoc, |
| 665 | TemplateArgsPtr, |
| 666 | TemplateId->getTemplateArgLocations(), |
| 667 | TemplateId->RAngleLoc); |
| 668 | |
John McCall | c4e7019 | 2009-09-11 04:59:25 +0000 | [diff] [blame] | 669 | TypeResult = Actions.ActOnTagTemplateIdType(TypeResult, TUK, |
| 670 | TagType, StartLoc); |
Douglas Gregor | 4d9a16f | 2009-05-12 23:25:50 +0000 | [diff] [blame] | 671 | } else { |
| 672 | // This is an explicit specialization or a class template |
| 673 | // partial specialization. |
| 674 | TemplateParameterLists FakedParamLists; |
| 675 | |
| 676 | if (TemplateInfo.Kind == ParsedTemplateInfo::ExplicitInstantiation) { |
| 677 | // This looks like an explicit instantiation, because we have |
| 678 | // something like |
| 679 | // |
| 680 | // template class Foo<X> |
| 681 | // |
Douglas Gregor | 3f5b61c | 2009-05-14 00:28:11 +0000 | [diff] [blame] | 682 | // but it actually has a definition. Most likely, this was |
Douglas Gregor | 4d9a16f | 2009-05-12 23:25:50 +0000 | [diff] [blame] | 683 | // meant to be an explicit specialization, but the user forgot |
| 684 | // the '<>' after 'template'. |
John McCall | 0f434ec | 2009-07-31 02:45:11 +0000 | [diff] [blame] | 685 | assert(TUK == Action::TUK_Definition && "Expected a definition here"); |
Douglas Gregor | 4d9a16f | 2009-05-12 23:25:50 +0000 | [diff] [blame] | 686 | |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 687 | SourceLocation LAngleLoc |
Douglas Gregor | 4d9a16f | 2009-05-12 23:25:50 +0000 | [diff] [blame] | 688 | = PP.getLocForEndOfToken(TemplateInfo.TemplateLoc); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 689 | Diag(TemplateId->TemplateNameLoc, |
Douglas Gregor | 4d9a16f | 2009-05-12 23:25:50 +0000 | [diff] [blame] | 690 | diag::err_explicit_instantiation_with_definition) |
| 691 | << SourceRange(TemplateInfo.TemplateLoc) |
| 692 | << CodeModificationHint::CreateInsertion(LAngleLoc, "<>"); |
| 693 | |
| 694 | // Create a fake template parameter list that contains only |
| 695 | // "template<>", so that we treat this construct as a class |
| 696 | // template specialization. |
| 697 | FakedParamLists.push_back( |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 698 | Actions.ActOnTemplateParameterList(0, SourceLocation(), |
Douglas Gregor | 4d9a16f | 2009-05-12 23:25:50 +0000 | [diff] [blame] | 699 | TemplateInfo.TemplateLoc, |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 700 | LAngleLoc, |
| 701 | 0, 0, |
Douglas Gregor | 4d9a16f | 2009-05-12 23:25:50 +0000 | [diff] [blame] | 702 | LAngleLoc)); |
| 703 | TemplateParams = &FakedParamLists; |
| 704 | } |
| 705 | |
| 706 | // Build the class template specialization. |
| 707 | TagOrTempResult |
John McCall | 0f434ec | 2009-07-31 02:45:11 +0000 | [diff] [blame] | 708 | = Actions.ActOnClassTemplateSpecialization(CurScope, TagType, TUK, |
Douglas Gregor | 39a8de1 | 2009-02-25 19:37:18 +0000 | [diff] [blame] | 709 | StartLoc, SS, |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 710 | TemplateTy::make(TemplateId->Template), |
| 711 | TemplateId->TemplateNameLoc, |
| 712 | TemplateId->LAngleLoc, |
Douglas Gregor | 39a8de1 | 2009-02-25 19:37:18 +0000 | [diff] [blame] | 713 | TemplateArgsPtr, |
| 714 | TemplateId->getTemplateArgLocations(), |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 715 | TemplateId->RAngleLoc, |
Douglas Gregor | 39a8de1 | 2009-02-25 19:37:18 +0000 | [diff] [blame] | 716 | Attr, |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 717 | Action::MultiTemplateParamsArg(Actions, |
Douglas Gregor | cc63668 | 2009-02-17 23:15:12 +0000 | [diff] [blame] | 718 | TemplateParams? &(*TemplateParams)[0] : 0, |
| 719 | TemplateParams? TemplateParams->size() : 0)); |
Douglas Gregor | 4d9a16f | 2009-05-12 23:25:50 +0000 | [diff] [blame] | 720 | } |
Douglas Gregor | 39a8de1 | 2009-02-25 19:37:18 +0000 | [diff] [blame] | 721 | TemplateId->Destroy(); |
Douglas Gregor | 3f5b61c | 2009-05-14 00:28:11 +0000 | [diff] [blame] | 722 | } else if (TemplateInfo.Kind == ParsedTemplateInfo::ExplicitInstantiation && |
John McCall | 0f434ec | 2009-07-31 02:45:11 +0000 | [diff] [blame] | 723 | TUK == Action::TUK_Declaration) { |
Douglas Gregor | 3f5b61c | 2009-05-14 00:28:11 +0000 | [diff] [blame] | 724 | // Explicit instantiation of a member of a class template |
| 725 | // specialization, e.g., |
| 726 | // |
| 727 | // template struct Outer<int>::Inner; |
| 728 | // |
| 729 | TagOrTempResult |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 730 | = Actions.ActOnExplicitInstantiation(CurScope, |
Douglas Gregor | 45f9655 | 2009-09-04 06:33:52 +0000 | [diff] [blame] | 731 | TemplateInfo.ExternLoc, |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 732 | TemplateInfo.TemplateLoc, |
| 733 | TagType, StartLoc, SS, Name, |
Douglas Gregor | 3f5b61c | 2009-05-14 00:28:11 +0000 | [diff] [blame] | 734 | NameLoc, Attr); |
| 735 | } else { |
| 736 | if (TemplateInfo.Kind == ParsedTemplateInfo::ExplicitInstantiation && |
John McCall | 0f434ec | 2009-07-31 02:45:11 +0000 | [diff] [blame] | 737 | TUK == Action::TUK_Definition) { |
Douglas Gregor | 3f5b61c | 2009-05-14 00:28:11 +0000 | [diff] [blame] | 738 | // FIXME: Diagnose this particular error. |
| 739 | } |
| 740 | |
John McCall | c4e7019 | 2009-09-11 04:59:25 +0000 | [diff] [blame] | 741 | bool IsDependent = false; |
| 742 | |
Douglas Gregor | 3f5b61c | 2009-05-14 00:28:11 +0000 | [diff] [blame] | 743 | // Declaration or definition of a class type |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 744 | TagOrTempResult = Actions.ActOnTag(CurScope, TagType, TUK, StartLoc, SS, |
Douglas Gregor | 7cdbc58 | 2009-07-22 23:48:44 +0000 | [diff] [blame] | 745 | Name, NameLoc, Attr, AS, |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 746 | Action::MultiTemplateParamsArg(Actions, |
Douglas Gregor | 7cdbc58 | 2009-07-22 23:48:44 +0000 | [diff] [blame] | 747 | TemplateParams? &(*TemplateParams)[0] : 0, |
| 748 | TemplateParams? TemplateParams->size() : 0), |
John McCall | c4e7019 | 2009-09-11 04:59:25 +0000 | [diff] [blame] | 749 | Owned, IsDependent); |
| 750 | |
| 751 | // If ActOnTag said the type was dependent, try again with the |
| 752 | // less common call. |
| 753 | if (IsDependent) |
| 754 | TypeResult = Actions.ActOnDependentTag(CurScope, TagType, TUK, |
| 755 | SS, Name, StartLoc, NameLoc); |
Douglas Gregor | 3f5b61c | 2009-05-14 00:28:11 +0000 | [diff] [blame] | 756 | } |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 757 | |
| 758 | // Parse the optional base clause (C++ only). |
Chris Lattner | 22bd905 | 2009-02-16 22:07:16 +0000 | [diff] [blame] | 759 | if (getLang().CPlusPlus && Tok.is(tok::colon)) |
Douglas Gregor | 212e81c | 2009-03-25 00:13:59 +0000 | [diff] [blame] | 760 | ParseBaseClause(TagOrTempResult.get()); |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 761 | |
| 762 | // If there is a body, parse it and inform the actions module. |
| 763 | if (Tok.is(tok::l_brace)) |
Argyrios Kyrtzidis | 0795232 | 2008-07-01 10:37:29 +0000 | [diff] [blame] | 764 | if (getLang().CPlusPlus) |
Douglas Gregor | 212e81c | 2009-03-25 00:13:59 +0000 | [diff] [blame] | 765 | ParseCXXMemberSpecification(StartLoc, TagType, TagOrTempResult.get()); |
Argyrios Kyrtzidis | 0795232 | 2008-07-01 10:37:29 +0000 | [diff] [blame] | 766 | else |
Douglas Gregor | 212e81c | 2009-03-25 00:13:59 +0000 | [diff] [blame] | 767 | ParseStructUnionBody(StartLoc, TagType, TagOrTempResult.get()); |
John McCall | 0f434ec | 2009-07-31 02:45:11 +0000 | [diff] [blame] | 768 | else if (TUK == Action::TUK_Definition) { |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 769 | // FIXME: Complain that we have a base-specifier list but no |
| 770 | // definition. |
Chris Lattner | 1ab3b96 | 2008-11-18 07:48:38 +0000 | [diff] [blame] | 771 | Diag(Tok, diag::err_expected_lbrace); |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 772 | } |
| 773 | |
John McCall | c4e7019 | 2009-09-11 04:59:25 +0000 | [diff] [blame] | 774 | void *Result; |
| 775 | if (!TypeResult.isInvalid()) { |
| 776 | TagType = DeclSpec::TST_typename; |
| 777 | Result = TypeResult.get(); |
| 778 | Owned = false; |
| 779 | } else if (!TagOrTempResult.isInvalid()) { |
| 780 | Result = TagOrTempResult.get().getAs<void>(); |
| 781 | } else { |
Douglas Gregor | ddc29e1 | 2009-02-06 22:42:48 +0000 | [diff] [blame] | 782 | DS.SetTypeSpecError(); |
Anders Carlsson | 66e9977 | 2009-05-11 22:27:47 +0000 | [diff] [blame] | 783 | return; |
| 784 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 785 | |
John McCall | fec5401 | 2009-08-03 20:12:06 +0000 | [diff] [blame] | 786 | const char *PrevSpec = 0; |
| 787 | unsigned DiagID; |
John McCall | c4e7019 | 2009-09-11 04:59:25 +0000 | [diff] [blame] | 788 | |
John McCall | fec5401 | 2009-08-03 20:12:06 +0000 | [diff] [blame] | 789 | if (DS.SetTypeSpecType(TagType, StartLoc, PrevSpec, DiagID, |
John McCall | c4e7019 | 2009-09-11 04:59:25 +0000 | [diff] [blame] | 790 | Result, Owned)) |
John McCall | fec5401 | 2009-08-03 20:12:06 +0000 | [diff] [blame] | 791 | Diag(StartLoc, DiagID) << PrevSpec; |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 792 | } |
| 793 | |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 794 | /// ParseBaseClause - Parse the base-clause of a C++ class [C++ class.derived]. |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 795 | /// |
| 796 | /// base-clause : [C++ class.derived] |
| 797 | /// ':' base-specifier-list |
| 798 | /// base-specifier-list: |
| 799 | /// base-specifier '...'[opt] |
| 800 | /// base-specifier-list ',' base-specifier '...'[opt] |
Chris Lattner | b28317a | 2009-03-28 19:18:32 +0000 | [diff] [blame] | 801 | void Parser::ParseBaseClause(DeclPtrTy ClassDecl) { |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 802 | assert(Tok.is(tok::colon) && "Not a base clause"); |
| 803 | ConsumeToken(); |
| 804 | |
Douglas Gregor | f8268ae | 2008-10-22 17:49:05 +0000 | [diff] [blame] | 805 | // Build up an array of parsed base specifiers. |
| 806 | llvm::SmallVector<BaseTy *, 8> BaseInfo; |
| 807 | |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 808 | while (true) { |
| 809 | // Parse a base-specifier. |
Douglas Gregor | f8268ae | 2008-10-22 17:49:05 +0000 | [diff] [blame] | 810 | BaseResult Result = ParseBaseSpecifier(ClassDecl); |
Douglas Gregor | 5ac8aff | 2009-01-26 22:44:13 +0000 | [diff] [blame] | 811 | if (Result.isInvalid()) { |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 812 | // Skip the rest of this base specifier, up until the comma or |
| 813 | // opening brace. |
Douglas Gregor | f8268ae | 2008-10-22 17:49:05 +0000 | [diff] [blame] | 814 | SkipUntil(tok::comma, tok::l_brace, true, true); |
| 815 | } else { |
| 816 | // Add this to our array of base specifiers. |
Douglas Gregor | 5ac8aff | 2009-01-26 22:44:13 +0000 | [diff] [blame] | 817 | BaseInfo.push_back(Result.get()); |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 818 | } |
| 819 | |
| 820 | // If the next token is a comma, consume it and keep reading |
| 821 | // base-specifiers. |
| 822 | if (Tok.isNot(tok::comma)) break; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 823 | |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 824 | // Consume the comma. |
| 825 | ConsumeToken(); |
| 826 | } |
Douglas Gregor | f8268ae | 2008-10-22 17:49:05 +0000 | [diff] [blame] | 827 | |
| 828 | // Attach the base specifiers |
Jay Foad | beaaccd | 2009-05-21 09:52:38 +0000 | [diff] [blame] | 829 | Actions.ActOnBaseSpecifiers(ClassDecl, BaseInfo.data(), BaseInfo.size()); |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 830 | } |
| 831 | |
| 832 | /// ParseBaseSpecifier - Parse a C++ base-specifier. A base-specifier is |
| 833 | /// one entry in the base class list of a class specifier, for example: |
| 834 | /// class foo : public bar, virtual private baz { |
| 835 | /// 'public bar' and 'virtual private baz' are each base-specifiers. |
| 836 | /// |
| 837 | /// base-specifier: [C++ class.derived] |
| 838 | /// ::[opt] nested-name-specifier[opt] class-name |
| 839 | /// 'virtual' access-specifier[opt] ::[opt] nested-name-specifier[opt] |
| 840 | /// class-name |
| 841 | /// access-specifier 'virtual'[opt] ::[opt] nested-name-specifier[opt] |
| 842 | /// class-name |
Chris Lattner | b28317a | 2009-03-28 19:18:32 +0000 | [diff] [blame] | 843 | Parser::BaseResult Parser::ParseBaseSpecifier(DeclPtrTy ClassDecl) { |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 844 | bool IsVirtual = false; |
| 845 | SourceLocation StartLoc = Tok.getLocation(); |
| 846 | |
| 847 | // Parse the 'virtual' keyword. |
| 848 | if (Tok.is(tok::kw_virtual)) { |
| 849 | ConsumeToken(); |
| 850 | IsVirtual = true; |
| 851 | } |
| 852 | |
| 853 | // Parse an (optional) access specifier. |
| 854 | AccessSpecifier Access = getAccessSpecifierIfPresent(); |
| 855 | if (Access) |
| 856 | ConsumeToken(); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 857 | |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 858 | // Parse the 'virtual' keyword (again!), in case it came after the |
| 859 | // access specifier. |
| 860 | if (Tok.is(tok::kw_virtual)) { |
| 861 | SourceLocation VirtualLoc = ConsumeToken(); |
| 862 | if (IsVirtual) { |
| 863 | // Complain about duplicate 'virtual' |
Chris Lattner | 1ab3b96 | 2008-11-18 07:48:38 +0000 | [diff] [blame] | 864 | Diag(VirtualLoc, diag::err_dup_virtual) |
Douglas Gregor | 31a19b6 | 2009-04-01 21:51:26 +0000 | [diff] [blame] | 865 | << CodeModificationHint::CreateRemoval(SourceRange(VirtualLoc)); |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 866 | } |
| 867 | |
| 868 | IsVirtual = true; |
| 869 | } |
| 870 | |
Argyrios Kyrtzidis | eb83ecd | 2008-11-08 16:45:02 +0000 | [diff] [blame] | 871 | // Parse optional '::' and optional nested-name-specifier. |
| 872 | CXXScopeSpec SS; |
Douglas Gregor | 2dd078a | 2009-09-02 22:59:36 +0000 | [diff] [blame] | 873 | ParseOptionalCXXScopeSpecifier(SS, /*ObjectType=*/0, true); |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 874 | |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 875 | // The location of the base class itself. |
| 876 | SourceLocation BaseLoc = Tok.getLocation(); |
Douglas Gregor | 42a552f | 2008-11-05 20:51:48 +0000 | [diff] [blame] | 877 | |
| 878 | // Parse the class-name. |
Douglas Gregor | 7f43d67 | 2009-02-25 23:52:28 +0000 | [diff] [blame] | 879 | SourceLocation EndLocation; |
Douglas Gregor | 31a19b6 | 2009-04-01 21:51:26 +0000 | [diff] [blame] | 880 | TypeResult BaseType = ParseClassName(EndLocation, &SS); |
| 881 | if (BaseType.isInvalid()) |
Douglas Gregor | 42a552f | 2008-11-05 20:51:48 +0000 | [diff] [blame] | 882 | return true; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 883 | |
| 884 | // Find the complete source range for the base-specifier. |
Douglas Gregor | 7f43d67 | 2009-02-25 23:52:28 +0000 | [diff] [blame] | 885 | SourceRange Range(StartLoc, EndLocation); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 886 | |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 887 | // Notify semantic analysis that we have parsed a complete |
| 888 | // base-specifier. |
Sebastian Redl | a55e52c | 2008-11-25 22:21:31 +0000 | [diff] [blame] | 889 | return Actions.ActOnBaseSpecifier(ClassDecl, Range, IsVirtual, Access, |
Douglas Gregor | 31a19b6 | 2009-04-01 21:51:26 +0000 | [diff] [blame] | 890 | BaseType.get(), BaseLoc); |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 891 | } |
| 892 | |
| 893 | /// getAccessSpecifierIfPresent - Determine whether the next token is |
| 894 | /// a C++ access-specifier. |
| 895 | /// |
| 896 | /// access-specifier: [C++ class.derived] |
| 897 | /// 'private' |
| 898 | /// 'protected' |
| 899 | /// 'public' |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 900 | AccessSpecifier Parser::getAccessSpecifierIfPresent() const { |
Douglas Gregor | e37ac4f | 2008-04-13 21:30:24 +0000 | [diff] [blame] | 901 | switch (Tok.getKind()) { |
| 902 | default: return AS_none; |
| 903 | case tok::kw_private: return AS_private; |
| 904 | case tok::kw_protected: return AS_protected; |
| 905 | case tok::kw_public: return AS_public; |
| 906 | } |
| 907 | } |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 908 | |
Eli Friedman | d33133c | 2009-07-22 21:45:50 +0000 | [diff] [blame] | 909 | void Parser::HandleMemberFunctionDefaultArgs(Declarator& DeclaratorInfo, |
| 910 | DeclPtrTy ThisDecl) { |
| 911 | // We just declared a member function. If this member function |
| 912 | // has any default arguments, we'll need to parse them later. |
| 913 | LateParsedMethodDeclaration *LateMethod = 0; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 914 | DeclaratorChunk::FunctionTypeInfo &FTI |
Eli Friedman | d33133c | 2009-07-22 21:45:50 +0000 | [diff] [blame] | 915 | = DeclaratorInfo.getTypeObject(0).Fun; |
| 916 | for (unsigned ParamIdx = 0; ParamIdx < FTI.NumArgs; ++ParamIdx) { |
| 917 | if (LateMethod || FTI.ArgInfo[ParamIdx].DefaultArgTokens) { |
| 918 | if (!LateMethod) { |
| 919 | // Push this method onto the stack of late-parsed method |
| 920 | // declarations. |
| 921 | getCurrentClass().MethodDecls.push_back( |
| 922 | LateParsedMethodDeclaration(ThisDecl)); |
| 923 | LateMethod = &getCurrentClass().MethodDecls.back(); |
Douglas Gregor | d83d040 | 2009-08-22 00:34:47 +0000 | [diff] [blame] | 924 | LateMethod->TemplateScope = CurScope->isTemplateParamScope(); |
Eli Friedman | d33133c | 2009-07-22 21:45:50 +0000 | [diff] [blame] | 925 | |
| 926 | // Add all of the parameters prior to this one (they don't |
| 927 | // have default arguments). |
| 928 | LateMethod->DefaultArgs.reserve(FTI.NumArgs); |
| 929 | for (unsigned I = 0; I < ParamIdx; ++I) |
| 930 | LateMethod->DefaultArgs.push_back( |
| 931 | LateParsedDefaultArgument(FTI.ArgInfo[ParamIdx].Param)); |
| 932 | } |
| 933 | |
| 934 | // Add this parameter to the list of parameters (it or may |
| 935 | // not have a default argument). |
| 936 | LateMethod->DefaultArgs.push_back( |
| 937 | LateParsedDefaultArgument(FTI.ArgInfo[ParamIdx].Param, |
| 938 | FTI.ArgInfo[ParamIdx].DefaultArgTokens)); |
| 939 | } |
| 940 | } |
| 941 | } |
| 942 | |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 943 | /// ParseCXXClassMemberDeclaration - Parse a C++ class member declaration. |
| 944 | /// |
| 945 | /// member-declaration: |
| 946 | /// decl-specifier-seq[opt] member-declarator-list[opt] ';' |
| 947 | /// function-definition ';'[opt] |
| 948 | /// ::[opt] nested-name-specifier template[opt] unqualified-id ';'[TODO] |
| 949 | /// using-declaration [TODO] |
Anders Carlsson | 511d7ab | 2009-03-11 16:27:10 +0000 | [diff] [blame] | 950 | /// [C++0x] static_assert-declaration |
Anders Carlsson | 5aeccdb | 2009-03-26 00:52:18 +0000 | [diff] [blame] | 951 | /// template-declaration |
Chris Lattner | bc8d564 | 2008-12-18 01:12:00 +0000 | [diff] [blame] | 952 | /// [GNU] '__extension__' member-declaration |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 953 | /// |
| 954 | /// member-declarator-list: |
| 955 | /// member-declarator |
| 956 | /// member-declarator-list ',' member-declarator |
| 957 | /// |
| 958 | /// member-declarator: |
| 959 | /// declarator pure-specifier[opt] |
| 960 | /// declarator constant-initializer[opt] |
| 961 | /// identifier[opt] ':' constant-expression |
| 962 | /// |
Sebastian Redl | e2b6833 | 2009-04-12 17:16:29 +0000 | [diff] [blame] | 963 | /// pure-specifier: |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 964 | /// '= 0' |
| 965 | /// |
| 966 | /// constant-initializer: |
| 967 | /// '=' constant-expression |
| 968 | /// |
Douglas Gregor | 37b372b | 2009-08-20 22:52:58 +0000 | [diff] [blame] | 969 | void Parser::ParseCXXClassMemberDeclaration(AccessSpecifier AS, |
| 970 | const ParsedTemplateInfo &TemplateInfo) { |
Anders Carlsson | 511d7ab | 2009-03-11 16:27:10 +0000 | [diff] [blame] | 971 | // static_assert-declaration |
Chris Lattner | 682bf92 | 2009-03-29 16:50:03 +0000 | [diff] [blame] | 972 | if (Tok.is(tok::kw_static_assert)) { |
Douglas Gregor | 37b372b | 2009-08-20 22:52:58 +0000 | [diff] [blame] | 973 | // FIXME: Check for templates |
Chris Lattner | 97144fc | 2009-04-02 04:16:50 +0000 | [diff] [blame] | 974 | SourceLocation DeclEnd; |
| 975 | ParseStaticAssertDeclaration(DeclEnd); |
Chris Lattner | 682bf92 | 2009-03-29 16:50:03 +0000 | [diff] [blame] | 976 | return; |
| 977 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 978 | |
Chris Lattner | 682bf92 | 2009-03-29 16:50:03 +0000 | [diff] [blame] | 979 | if (Tok.is(tok::kw_template)) { |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 980 | assert(!TemplateInfo.TemplateParams && |
Douglas Gregor | 37b372b | 2009-08-20 22:52:58 +0000 | [diff] [blame] | 981 | "Nested template improperly parsed?"); |
Chris Lattner | 97144fc | 2009-04-02 04:16:50 +0000 | [diff] [blame] | 982 | SourceLocation DeclEnd; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 983 | ParseDeclarationStartingWithTemplate(Declarator::MemberContext, DeclEnd, |
Douglas Gregor | 4d9a16f | 2009-05-12 23:25:50 +0000 | [diff] [blame] | 984 | AS); |
Chris Lattner | 682bf92 | 2009-03-29 16:50:03 +0000 | [diff] [blame] | 985 | return; |
| 986 | } |
Anders Carlsson | 5aeccdb | 2009-03-26 00:52:18 +0000 | [diff] [blame] | 987 | |
Chris Lattner | bc8d564 | 2008-12-18 01:12:00 +0000 | [diff] [blame] | 988 | // Handle: member-declaration ::= '__extension__' member-declaration |
| 989 | if (Tok.is(tok::kw___extension__)) { |
| 990 | // __extension__ silences extension warnings in the subexpression. |
| 991 | ExtensionRAIIObject O(Diags); // Use RAII to do this. |
| 992 | ConsumeToken(); |
Douglas Gregor | 37b372b | 2009-08-20 22:52:58 +0000 | [diff] [blame] | 993 | return ParseCXXClassMemberDeclaration(AS, TemplateInfo); |
Chris Lattner | bc8d564 | 2008-12-18 01:12:00 +0000 | [diff] [blame] | 994 | } |
Douglas Gregor | 9cfbe48 | 2009-06-20 00:51:54 +0000 | [diff] [blame] | 995 | |
| 996 | if (Tok.is(tok::kw_using)) { |
Douglas Gregor | 37b372b | 2009-08-20 22:52:58 +0000 | [diff] [blame] | 997 | // FIXME: Check for template aliases |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 998 | |
Douglas Gregor | 9cfbe48 | 2009-06-20 00:51:54 +0000 | [diff] [blame] | 999 | // Eat 'using'. |
| 1000 | SourceLocation UsingLoc = ConsumeToken(); |
| 1001 | |
| 1002 | if (Tok.is(tok::kw_namespace)) { |
| 1003 | Diag(UsingLoc, diag::err_using_namespace_in_class); |
| 1004 | SkipUntil(tok::semi, true, true); |
| 1005 | } |
| 1006 | else { |
| 1007 | SourceLocation DeclEnd; |
| 1008 | // Otherwise, it must be using-declaration. |
Anders Carlsson | 595adc1 | 2009-08-29 19:54:19 +0000 | [diff] [blame] | 1009 | ParseUsingDeclaration(Declarator::MemberContext, UsingLoc, DeclEnd, AS); |
Douglas Gregor | 9cfbe48 | 2009-06-20 00:51:54 +0000 | [diff] [blame] | 1010 | } |
| 1011 | return; |
| 1012 | } |
| 1013 | |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1014 | SourceLocation DSStart = Tok.getLocation(); |
| 1015 | // decl-specifier-seq: |
| 1016 | // Parse the common declaration-specifiers piece. |
| 1017 | DeclSpec DS; |
Douglas Gregor | 37b372b | 2009-08-20 22:52:58 +0000 | [diff] [blame] | 1018 | ParseDeclarationSpecifiers(DS, TemplateInfo, AS, DSC_class); |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1019 | |
John McCall | dd4a3b0 | 2009-09-16 22:47:08 +0000 | [diff] [blame] | 1020 | Action::MultiTemplateParamsArg TemplateParams(Actions, |
| 1021 | TemplateInfo.TemplateParams? TemplateInfo.TemplateParams->data() : 0, |
| 1022 | TemplateInfo.TemplateParams? TemplateInfo.TemplateParams->size() : 0); |
| 1023 | |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1024 | if (Tok.is(tok::semi)) { |
| 1025 | ConsumeToken(); |
John McCall | 67d1a67 | 2009-08-06 02:15:43 +0000 | [diff] [blame] | 1026 | |
Anders Carlsson | 4111181 | 2009-09-11 17:54:14 +0000 | [diff] [blame] | 1027 | if (DS.isFriendSpecified()) { |
John McCall | dd4a3b0 | 2009-09-16 22:47:08 +0000 | [diff] [blame] | 1028 | Actions.ActOnFriendTypeDecl(CurScope, DS, move(TemplateParams)); |
Anders Carlsson | 4111181 | 2009-09-11 17:54:14 +0000 | [diff] [blame] | 1029 | } else |
Chris Lattner | 682bf92 | 2009-03-29 16:50:03 +0000 | [diff] [blame] | 1030 | Actions.ParsedFreeStandingDeclSpec(CurScope, DS); |
John McCall | 67d1a67 | 2009-08-06 02:15:43 +0000 | [diff] [blame] | 1031 | |
| 1032 | return; |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1033 | } |
Argyrios Kyrtzidis | 0795232 | 2008-07-01 10:37:29 +0000 | [diff] [blame] | 1034 | |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1035 | Declarator DeclaratorInfo(DS, Declarator::MemberContext); |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1036 | |
Argyrios Kyrtzidis | 3a9fdb4 | 2008-06-28 08:10:48 +0000 | [diff] [blame] | 1037 | if (Tok.isNot(tok::colon)) { |
| 1038 | // Parse the first declarator. |
| 1039 | ParseDeclarator(DeclaratorInfo); |
| 1040 | // Error parsing the declarator? |
Douglas Gregor | 10bd368 | 2008-11-17 22:58:34 +0000 | [diff] [blame] | 1041 | if (!DeclaratorInfo.hasName()) { |
Argyrios Kyrtzidis | 3a9fdb4 | 2008-06-28 08:10:48 +0000 | [diff] [blame] | 1042 | // If so, skip until the semi-colon or a }. |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1043 | SkipUntil(tok::r_brace, true); |
Argyrios Kyrtzidis | 3a9fdb4 | 2008-06-28 08:10:48 +0000 | [diff] [blame] | 1044 | if (Tok.is(tok::semi)) |
| 1045 | ConsumeToken(); |
Chris Lattner | 682bf92 | 2009-03-29 16:50:03 +0000 | [diff] [blame] | 1046 | return; |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1047 | } |
| 1048 | |
Argyrios Kyrtzidis | 3a9fdb4 | 2008-06-28 08:10:48 +0000 | [diff] [blame] | 1049 | // function-definition: |
Douglas Gregor | 7ad8390 | 2008-11-05 04:29:56 +0000 | [diff] [blame] | 1050 | if (Tok.is(tok::l_brace) |
Sebastian Redl | d3a413d | 2009-04-26 20:35:05 +0000 | [diff] [blame] | 1051 | || (DeclaratorInfo.isFunctionDeclarator() && |
| 1052 | (Tok.is(tok::colon) || Tok.is(tok::kw_try)))) { |
Argyrios Kyrtzidis | 3a9fdb4 | 2008-06-28 08:10:48 +0000 | [diff] [blame] | 1053 | if (!DeclaratorInfo.isFunctionDeclarator()) { |
| 1054 | Diag(Tok, diag::err_func_def_no_params); |
| 1055 | ConsumeBrace(); |
| 1056 | SkipUntil(tok::r_brace, true); |
Chris Lattner | 682bf92 | 2009-03-29 16:50:03 +0000 | [diff] [blame] | 1057 | return; |
Argyrios Kyrtzidis | 3a9fdb4 | 2008-06-28 08:10:48 +0000 | [diff] [blame] | 1058 | } |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1059 | |
Argyrios Kyrtzidis | 3a9fdb4 | 2008-06-28 08:10:48 +0000 | [diff] [blame] | 1060 | if (DS.getStorageClassSpec() == DeclSpec::SCS_typedef) { |
| 1061 | Diag(Tok, diag::err_function_declared_typedef); |
| 1062 | // This recovery skips the entire function body. It would be nice |
| 1063 | // to simply call ParseCXXInlineMethodDef() below, however Sema |
| 1064 | // assumes the declarator represents a function, not a typedef. |
| 1065 | ConsumeBrace(); |
| 1066 | SkipUntil(tok::r_brace, true); |
Chris Lattner | 682bf92 | 2009-03-29 16:50:03 +0000 | [diff] [blame] | 1067 | return; |
Argyrios Kyrtzidis | 3a9fdb4 | 2008-06-28 08:10:48 +0000 | [diff] [blame] | 1068 | } |
| 1069 | |
Douglas Gregor | 37b372b | 2009-08-20 22:52:58 +0000 | [diff] [blame] | 1070 | ParseCXXInlineMethodDef(AS, DeclaratorInfo, TemplateInfo); |
Chris Lattner | 682bf92 | 2009-03-29 16:50:03 +0000 | [diff] [blame] | 1071 | return; |
Argyrios Kyrtzidis | 3a9fdb4 | 2008-06-28 08:10:48 +0000 | [diff] [blame] | 1072 | } |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1073 | } |
| 1074 | |
| 1075 | // member-declarator-list: |
| 1076 | // member-declarator |
| 1077 | // member-declarator-list ',' member-declarator |
| 1078 | |
Chris Lattner | 682bf92 | 2009-03-29 16:50:03 +0000 | [diff] [blame] | 1079 | llvm::SmallVector<DeclPtrTy, 8> DeclsInGroup; |
Sebastian Redl | 15faa7f | 2008-12-09 20:22:58 +0000 | [diff] [blame] | 1080 | OwningExprResult BitfieldSize(Actions); |
| 1081 | OwningExprResult Init(Actions); |
Sebastian Redl | e2b6833 | 2009-04-12 17:16:29 +0000 | [diff] [blame] | 1082 | bool Deleted = false; |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1083 | |
| 1084 | while (1) { |
| 1085 | |
| 1086 | // member-declarator: |
| 1087 | // declarator pure-specifier[opt] |
| 1088 | // declarator constant-initializer[opt] |
| 1089 | // identifier[opt] ':' constant-expression |
| 1090 | |
| 1091 | if (Tok.is(tok::colon)) { |
| 1092 | ConsumeToken(); |
Sebastian Redl | 0e9eabc | 2008-12-09 13:15:23 +0000 | [diff] [blame] | 1093 | BitfieldSize = ParseConstantExpression(); |
| 1094 | if (BitfieldSize.isInvalid()) |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1095 | SkipUntil(tok::comma, true, true); |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1096 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1097 | |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1098 | // pure-specifier: |
| 1099 | // '= 0' |
| 1100 | // |
| 1101 | // constant-initializer: |
| 1102 | // '=' constant-expression |
Sebastian Redl | e2b6833 | 2009-04-12 17:16:29 +0000 | [diff] [blame] | 1103 | // |
| 1104 | // defaulted/deleted function-definition: |
| 1105 | // '=' 'default' [TODO] |
| 1106 | // '=' 'delete' |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1107 | |
| 1108 | if (Tok.is(tok::equal)) { |
| 1109 | ConsumeToken(); |
Sebastian Redl | e2b6833 | 2009-04-12 17:16:29 +0000 | [diff] [blame] | 1110 | if (getLang().CPlusPlus0x && Tok.is(tok::kw_delete)) { |
| 1111 | ConsumeToken(); |
| 1112 | Deleted = true; |
| 1113 | } else { |
| 1114 | Init = ParseInitializer(); |
| 1115 | if (Init.isInvalid()) |
| 1116 | SkipUntil(tok::comma, true, true); |
| 1117 | } |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1118 | } |
| 1119 | |
| 1120 | // If attributes exist after the declarator, parse them. |
Sebastian Redl | ab197ba | 2009-02-09 18:23:29 +0000 | [diff] [blame] | 1121 | if (Tok.is(tok::kw___attribute)) { |
| 1122 | SourceLocation Loc; |
| 1123 | AttributeList *AttrList = ParseAttributes(&Loc); |
| 1124 | DeclaratorInfo.AddAttributes(AttrList, Loc); |
| 1125 | } |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1126 | |
Argyrios Kyrtzidis | 0795232 | 2008-07-01 10:37:29 +0000 | [diff] [blame] | 1127 | // 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] | 1128 | // this call will *not* return the created decl; It will return null. |
Argyrios Kyrtzidis | 0795232 | 2008-07-01 10:37:29 +0000 | [diff] [blame] | 1129 | // See Sema::ActOnCXXMemberDeclarator for details. |
John McCall | 67d1a67 | 2009-08-06 02:15:43 +0000 | [diff] [blame] | 1130 | |
| 1131 | DeclPtrTy ThisDecl; |
| 1132 | if (DS.isFriendSpecified()) { |
John McCall | bbbcdd9 | 2009-09-11 21:02:39 +0000 | [diff] [blame] | 1133 | // TODO: handle initializers, bitfields, 'delete' |
| 1134 | ThisDecl = Actions.ActOnFriendFunctionDecl(CurScope, DeclaratorInfo, |
| 1135 | /*IsDefinition*/ false, |
| 1136 | move(TemplateParams)); |
Douglas Gregor | 37b372b | 2009-08-20 22:52:58 +0000 | [diff] [blame] | 1137 | } else { |
John McCall | 67d1a67 | 2009-08-06 02:15:43 +0000 | [diff] [blame] | 1138 | ThisDecl = Actions.ActOnCXXMemberDeclarator(CurScope, AS, |
| 1139 | DeclaratorInfo, |
Douglas Gregor | 37b372b | 2009-08-20 22:52:58 +0000 | [diff] [blame] | 1140 | move(TemplateParams), |
John McCall | 67d1a67 | 2009-08-06 02:15:43 +0000 | [diff] [blame] | 1141 | BitfieldSize.release(), |
| 1142 | Init.release(), |
| 1143 | Deleted); |
Douglas Gregor | 37b372b | 2009-08-20 22:52:58 +0000 | [diff] [blame] | 1144 | } |
Chris Lattner | 682bf92 | 2009-03-29 16:50:03 +0000 | [diff] [blame] | 1145 | if (ThisDecl) |
| 1146 | DeclsInGroup.push_back(ThisDecl); |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1147 | |
Douglas Gregor | 72b505b | 2008-12-16 21:30:33 +0000 | [diff] [blame] | 1148 | if (DeclaratorInfo.isFunctionDeclarator() && |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1149 | DeclaratorInfo.getDeclSpec().getStorageClassSpec() |
Douglas Gregor | 72b505b | 2008-12-16 21:30:33 +0000 | [diff] [blame] | 1150 | != DeclSpec::SCS_typedef) { |
Eli Friedman | d33133c | 2009-07-22 21:45:50 +0000 | [diff] [blame] | 1151 | HandleMemberFunctionDefaultArgs(DeclaratorInfo, ThisDecl); |
Douglas Gregor | 72b505b | 2008-12-16 21:30:33 +0000 | [diff] [blame] | 1152 | } |
| 1153 | |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1154 | // If we don't have a comma, it is either the end of the list (a ';') |
| 1155 | // or an error, bail out. |
| 1156 | if (Tok.isNot(tok::comma)) |
| 1157 | break; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1158 | |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1159 | // Consume the comma. |
| 1160 | ConsumeToken(); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1161 | |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1162 | // Parse the next declarator. |
| 1163 | DeclaratorInfo.clear(); |
Sebastian Redl | 15faa7f | 2008-12-09 20:22:58 +0000 | [diff] [blame] | 1164 | BitfieldSize = 0; |
| 1165 | Init = 0; |
Sebastian Redl | e2b6833 | 2009-04-12 17:16:29 +0000 | [diff] [blame] | 1166 | Deleted = false; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1167 | |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1168 | // Attributes are only allowed on the second declarator. |
Sebastian Redl | ab197ba | 2009-02-09 18:23:29 +0000 | [diff] [blame] | 1169 | if (Tok.is(tok::kw___attribute)) { |
| 1170 | SourceLocation Loc; |
| 1171 | AttributeList *AttrList = ParseAttributes(&Loc); |
| 1172 | DeclaratorInfo.AddAttributes(AttrList, Loc); |
| 1173 | } |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1174 | |
Argyrios Kyrtzidis | 3a9fdb4 | 2008-06-28 08:10:48 +0000 | [diff] [blame] | 1175 | if (Tok.isNot(tok::colon)) |
| 1176 | ParseDeclarator(DeclaratorInfo); |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1177 | } |
| 1178 | |
| 1179 | if (Tok.is(tok::semi)) { |
| 1180 | ConsumeToken(); |
Eli Friedman | c1dc653 | 2009-05-29 01:49:24 +0000 | [diff] [blame] | 1181 | Actions.FinalizeDeclaratorGroup(CurScope, DS, DeclsInGroup.data(), |
Chris Lattner | 682bf92 | 2009-03-29 16:50:03 +0000 | [diff] [blame] | 1182 | DeclsInGroup.size()); |
| 1183 | return; |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1184 | } |
| 1185 | |
| 1186 | Diag(Tok, diag::err_expected_semi_decl_list); |
| 1187 | // Skip to end of block or statement |
| 1188 | SkipUntil(tok::r_brace, true, true); |
| 1189 | if (Tok.is(tok::semi)) |
| 1190 | ConsumeToken(); |
Chris Lattner | 682bf92 | 2009-03-29 16:50:03 +0000 | [diff] [blame] | 1191 | return; |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1192 | } |
| 1193 | |
| 1194 | /// ParseCXXMemberSpecification - Parse the class definition. |
| 1195 | /// |
| 1196 | /// member-specification: |
| 1197 | /// member-declaration member-specification[opt] |
| 1198 | /// access-specifier ':' member-specification[opt] |
| 1199 | /// |
| 1200 | void Parser::ParseCXXMemberSpecification(SourceLocation RecordLoc, |
Chris Lattner | b28317a | 2009-03-28 19:18:32 +0000 | [diff] [blame] | 1201 | unsigned TagType, DeclPtrTy TagDecl) { |
Sanjiv Gupta | 31fc07d | 2008-10-31 09:52:39 +0000 | [diff] [blame] | 1202 | assert((TagType == DeclSpec::TST_struct || |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1203 | TagType == DeclSpec::TST_union || |
Sanjiv Gupta | 31fc07d | 2008-10-31 09:52:39 +0000 | [diff] [blame] | 1204 | TagType == DeclSpec::TST_class) && "Invalid TagType!"); |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1205 | |
Chris Lattner | 49f28ca | 2009-03-05 08:00:35 +0000 | [diff] [blame] | 1206 | PrettyStackTraceActionsDecl CrashInfo(TagDecl, RecordLoc, Actions, |
| 1207 | PP.getSourceManager(), |
| 1208 | "parsing struct/union/class body"); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1209 | |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1210 | SourceLocation LBraceLoc = ConsumeBrace(); |
| 1211 | |
Douglas Gregor | 6569d68 | 2009-05-27 23:11:45 +0000 | [diff] [blame] | 1212 | // Determine whether this is a top-level (non-nested) class. |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1213 | bool TopLevelClass = ClassStack.empty() || |
Douglas Gregor | 6569d68 | 2009-05-27 23:11:45 +0000 | [diff] [blame] | 1214 | CurScope->isInCXXInlineMethodScope(); |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1215 | |
| 1216 | // Enter a scope for the class. |
Douglas Gregor | 3218c4b | 2009-01-09 22:42:13 +0000 | [diff] [blame] | 1217 | ParseScope ClassScope(this, Scope::ClassScope|Scope::DeclScope); |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1218 | |
Douglas Gregor | 6569d68 | 2009-05-27 23:11:45 +0000 | [diff] [blame] | 1219 | // Note that we are parsing a new (potentially-nested) class definition. |
| 1220 | ParsingClassDefinition ParsingDef(*this, TagDecl, TopLevelClass); |
| 1221 | |
Douglas Gregor | ddc29e1 | 2009-02-06 22:42:48 +0000 | [diff] [blame] | 1222 | if (TagDecl) |
| 1223 | Actions.ActOnTagStartDefinition(CurScope, TagDecl); |
| 1224 | else { |
| 1225 | SkipUntil(tok::r_brace, false, false); |
| 1226 | return; |
| 1227 | } |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1228 | |
| 1229 | // C++ 11p3: Members of a class defined with the keyword class are private |
| 1230 | // by default. Members of a class defined with the keywords struct or union |
| 1231 | // are public by default. |
| 1232 | AccessSpecifier CurAS; |
| 1233 | if (TagType == DeclSpec::TST_class) |
| 1234 | CurAS = AS_private; |
| 1235 | else |
| 1236 | CurAS = AS_public; |
| 1237 | |
| 1238 | // While we still have something to read, read the member-declarations. |
| 1239 | while (Tok.isNot(tok::r_brace) && Tok.isNot(tok::eof)) { |
| 1240 | // Each iteration of this loop reads one member-declaration. |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1241 | |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1242 | // Check for extraneous top-level semicolon. |
| 1243 | if (Tok.is(tok::semi)) { |
| 1244 | Diag(Tok, diag::ext_extra_struct_semi); |
| 1245 | ConsumeToken(); |
| 1246 | continue; |
| 1247 | } |
| 1248 | |
| 1249 | AccessSpecifier AS = getAccessSpecifierIfPresent(); |
| 1250 | if (AS != AS_none) { |
| 1251 | // Current token is a C++ access specifier. |
| 1252 | CurAS = AS; |
| 1253 | ConsumeToken(); |
| 1254 | ExpectAndConsume(tok::colon, diag::err_expected_colon); |
| 1255 | continue; |
| 1256 | } |
| 1257 | |
Douglas Gregor | 37b372b | 2009-08-20 22:52:58 +0000 | [diff] [blame] | 1258 | // FIXME: Make sure we don't have a template here. |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1259 | |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1260 | // Parse all the comma separated declarators. |
| 1261 | ParseCXXClassMemberDeclaration(CurAS); |
| 1262 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1263 | |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1264 | SourceLocation RBraceLoc = MatchRHSPunctuation(tok::r_brace, LBraceLoc); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1265 | |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1266 | AttributeList *AttrList = 0; |
| 1267 | // If attributes exist after class contents, parse them. |
| 1268 | if (Tok.is(tok::kw___attribute)) |
| 1269 | AttrList = ParseAttributes(); // FIXME: where should I put them? |
| 1270 | |
| 1271 | Actions.ActOnFinishCXXMemberSpecification(CurScope, RecordLoc, TagDecl, |
| 1272 | LBraceLoc, RBraceLoc); |
| 1273 | |
| 1274 | // C++ 9.2p2: Within the class member-specification, the class is regarded as |
| 1275 | // complete within function bodies, default arguments, |
| 1276 | // exception-specifications, and constructor ctor-initializers (including |
| 1277 | // such things in nested classes). |
| 1278 | // |
Douglas Gregor | 72b505b | 2008-12-16 21:30:33 +0000 | [diff] [blame] | 1279 | // FIXME: Only function bodies and constructor ctor-initializers are |
| 1280 | // parsed correctly, fix the rest. |
Douglas Gregor | 6569d68 | 2009-05-27 23:11:45 +0000 | [diff] [blame] | 1281 | if (TopLevelClass) { |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1282 | // 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] | 1283 | // are complete and we can parse the delayed portions of method |
| 1284 | // declarations and the lexed inline method definitions. |
Douglas Gregor | 6569d68 | 2009-05-27 23:11:45 +0000 | [diff] [blame] | 1285 | ParseLexedMethodDeclarations(getCurrentClass()); |
| 1286 | ParseLexedMethodDefs(getCurrentClass()); |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1287 | } |
| 1288 | |
| 1289 | // Leave the class scope. |
Douglas Gregor | 6569d68 | 2009-05-27 23:11:45 +0000 | [diff] [blame] | 1290 | ParsingDef.Pop(); |
Douglas Gregor | 8935b8b | 2008-12-10 06:34:36 +0000 | [diff] [blame] | 1291 | ClassScope.Exit(); |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1292 | |
Argyrios Kyrtzidis | 07a5b28 | 2009-07-14 03:17:52 +0000 | [diff] [blame] | 1293 | Actions.ActOnTagFinishDefinition(CurScope, TagDecl, RBraceLoc); |
Argyrios Kyrtzidis | 4cc18a4 | 2008-06-24 22:12:16 +0000 | [diff] [blame] | 1294 | } |
Douglas Gregor | 7ad8390 | 2008-11-05 04:29:56 +0000 | [diff] [blame] | 1295 | |
| 1296 | /// ParseConstructorInitializer - Parse a C++ constructor initializer, |
| 1297 | /// which explicitly initializes the members or base classes of a |
| 1298 | /// class (C++ [class.base.init]). For example, the three initializers |
| 1299 | /// after the ':' in the Derived constructor below: |
| 1300 | /// |
| 1301 | /// @code |
| 1302 | /// class Base { }; |
| 1303 | /// class Derived : Base { |
| 1304 | /// int x; |
| 1305 | /// float f; |
| 1306 | /// public: |
| 1307 | /// Derived(float f) : Base(), x(17), f(f) { } |
| 1308 | /// }; |
| 1309 | /// @endcode |
| 1310 | /// |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1311 | /// [C++] ctor-initializer: |
| 1312 | /// ':' mem-initializer-list |
Douglas Gregor | 7ad8390 | 2008-11-05 04:29:56 +0000 | [diff] [blame] | 1313 | /// |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1314 | /// [C++] mem-initializer-list: |
| 1315 | /// mem-initializer |
| 1316 | /// mem-initializer , mem-initializer-list |
Chris Lattner | b28317a | 2009-03-28 19:18:32 +0000 | [diff] [blame] | 1317 | void Parser::ParseConstructorInitializer(DeclPtrTy ConstructorDecl) { |
Douglas Gregor | 7ad8390 | 2008-11-05 04:29:56 +0000 | [diff] [blame] | 1318 | assert(Tok.is(tok::colon) && "Constructor initializer always starts with ':'"); |
| 1319 | |
| 1320 | SourceLocation ColonLoc = ConsumeToken(); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1321 | |
Douglas Gregor | 7ad8390 | 2008-11-05 04:29:56 +0000 | [diff] [blame] | 1322 | llvm::SmallVector<MemInitTy*, 4> MemInitializers; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1323 | |
Douglas Gregor | 7ad8390 | 2008-11-05 04:29:56 +0000 | [diff] [blame] | 1324 | do { |
| 1325 | MemInitResult MemInit = ParseMemInitializer(ConstructorDecl); |
Douglas Gregor | 5ac8aff | 2009-01-26 22:44:13 +0000 | [diff] [blame] | 1326 | if (!MemInit.isInvalid()) |
| 1327 | MemInitializers.push_back(MemInit.get()); |
Douglas Gregor | 7ad8390 | 2008-11-05 04:29:56 +0000 | [diff] [blame] | 1328 | |
| 1329 | if (Tok.is(tok::comma)) |
| 1330 | ConsumeToken(); |
| 1331 | else if (Tok.is(tok::l_brace)) |
| 1332 | break; |
| 1333 | else { |
| 1334 | // Skip over garbage, until we get to '{'. Don't eat the '{'. |
Sebastian Redl | d3a413d | 2009-04-26 20:35:05 +0000 | [diff] [blame] | 1335 | Diag(Tok.getLocation(), diag::err_expected_lbrace_or_comma); |
Douglas Gregor | 7ad8390 | 2008-11-05 04:29:56 +0000 | [diff] [blame] | 1336 | SkipUntil(tok::l_brace, true, true); |
| 1337 | break; |
| 1338 | } |
| 1339 | } while (true); |
| 1340 | |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1341 | Actions.ActOnMemInitializers(ConstructorDecl, ColonLoc, |
Jay Foad | beaaccd | 2009-05-21 09:52:38 +0000 | [diff] [blame] | 1342 | MemInitializers.data(), MemInitializers.size()); |
Douglas Gregor | 7ad8390 | 2008-11-05 04:29:56 +0000 | [diff] [blame] | 1343 | } |
| 1344 | |
| 1345 | /// ParseMemInitializer - Parse a C++ member initializer, which is |
| 1346 | /// part of a constructor initializer that explicitly initializes one |
| 1347 | /// member or base class (C++ [class.base.init]). See |
| 1348 | /// ParseConstructorInitializer for an example. |
| 1349 | /// |
| 1350 | /// [C++] mem-initializer: |
| 1351 | /// mem-initializer-id '(' expression-list[opt] ')' |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1352 | /// |
Douglas Gregor | 7ad8390 | 2008-11-05 04:29:56 +0000 | [diff] [blame] | 1353 | /// [C++] mem-initializer-id: |
| 1354 | /// '::'[opt] nested-name-specifier[opt] class-name |
| 1355 | /// identifier |
Chris Lattner | b28317a | 2009-03-28 19:18:32 +0000 | [diff] [blame] | 1356 | Parser::MemInitResult Parser::ParseMemInitializer(DeclPtrTy ConstructorDecl) { |
Fariborz Jahanian | bcfad54 | 2009-06-30 23:26:25 +0000 | [diff] [blame] | 1357 | // parse '::'[opt] nested-name-specifier[opt] |
| 1358 | CXXScopeSpec SS; |
Douglas Gregor | 2dd078a | 2009-09-02 22:59:36 +0000 | [diff] [blame] | 1359 | ParseOptionalCXXScopeSpecifier(SS, /*ObjectType=*/0, false); |
Fariborz Jahanian | 9617433 | 2009-07-01 19:21:19 +0000 | [diff] [blame] | 1360 | TypeTy *TemplateTypeTy = 0; |
| 1361 | if (Tok.is(tok::annot_template_id)) { |
| 1362 | TemplateIdAnnotation *TemplateId |
| 1363 | = static_cast<TemplateIdAnnotation *>(Tok.getAnnotationValue()); |
| 1364 | if (TemplateId->Kind == TNK_Type_template) { |
| 1365 | AnnotateTemplateIdTokenAsType(&SS); |
| 1366 | assert(Tok.is(tok::annot_typename) && "template-id -> type failed"); |
| 1367 | TemplateTypeTy = Tok.getAnnotationValue(); |
| 1368 | } |
| 1369 | // FIXME. May need to check for TNK_Dependent_template as well. |
| 1370 | } |
| 1371 | if (!TemplateTypeTy && Tok.isNot(tok::identifier)) { |
Chris Lattner | 1ab3b96 | 2008-11-18 07:48:38 +0000 | [diff] [blame] | 1372 | Diag(Tok, diag::err_expected_member_or_base_name); |
Douglas Gregor | 7ad8390 | 2008-11-05 04:29:56 +0000 | [diff] [blame] | 1373 | return true; |
| 1374 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1375 | |
Douglas Gregor | 7ad8390 | 2008-11-05 04:29:56 +0000 | [diff] [blame] | 1376 | // Get the identifier. This may be a member name or a class name, |
| 1377 | // but we'll let the semantic analysis determine which it is. |
Fariborz Jahanian | 9617433 | 2009-07-01 19:21:19 +0000 | [diff] [blame] | 1378 | IdentifierInfo *II = Tok.is(tok::identifier) ? Tok.getIdentifierInfo() : 0; |
Douglas Gregor | 7ad8390 | 2008-11-05 04:29:56 +0000 | [diff] [blame] | 1379 | SourceLocation IdLoc = ConsumeToken(); |
| 1380 | |
| 1381 | // Parse the '('. |
| 1382 | if (Tok.isNot(tok::l_paren)) { |
Chris Lattner | 1ab3b96 | 2008-11-18 07:48:38 +0000 | [diff] [blame] | 1383 | Diag(Tok, diag::err_expected_lparen); |
Douglas Gregor | 7ad8390 | 2008-11-05 04:29:56 +0000 | [diff] [blame] | 1384 | return true; |
| 1385 | } |
| 1386 | SourceLocation LParenLoc = ConsumeParen(); |
| 1387 | |
| 1388 | // Parse the optional expression-list. |
Sebastian Redl | a55e52c | 2008-11-25 22:21:31 +0000 | [diff] [blame] | 1389 | ExprVector ArgExprs(Actions); |
Douglas Gregor | 7ad8390 | 2008-11-05 04:29:56 +0000 | [diff] [blame] | 1390 | CommaLocsTy CommaLocs; |
| 1391 | if (Tok.isNot(tok::r_paren) && ParseExpressionList(ArgExprs, CommaLocs)) { |
| 1392 | SkipUntil(tok::r_paren); |
| 1393 | return true; |
| 1394 | } |
| 1395 | |
| 1396 | SourceLocation RParenLoc = MatchRHSPunctuation(tok::r_paren, LParenLoc); |
| 1397 | |
Fariborz Jahanian | 9617433 | 2009-07-01 19:21:19 +0000 | [diff] [blame] | 1398 | return Actions.ActOnMemInitializer(ConstructorDecl, CurScope, SS, II, |
| 1399 | TemplateTypeTy, IdLoc, |
Sebastian Redl | a55e52c | 2008-11-25 22:21:31 +0000 | [diff] [blame] | 1400 | LParenLoc, ArgExprs.take(), |
Jay Foad | beaaccd | 2009-05-21 09:52:38 +0000 | [diff] [blame] | 1401 | ArgExprs.size(), CommaLocs.data(), |
| 1402 | RParenLoc); |
Douglas Gregor | 7ad8390 | 2008-11-05 04:29:56 +0000 | [diff] [blame] | 1403 | } |
Douglas Gregor | 0fe7bea | 2008-11-25 03:22:00 +0000 | [diff] [blame] | 1404 | |
| 1405 | /// ParseExceptionSpecification - Parse a C++ exception-specification |
| 1406 | /// (C++ [except.spec]). |
| 1407 | /// |
Douglas Gregor | a474561 | 2008-12-01 18:00:20 +0000 | [diff] [blame] | 1408 | /// exception-specification: |
| 1409 | /// 'throw' '(' type-id-list [opt] ')' |
| 1410 | /// [MS] 'throw' '(' '...' ')' |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1411 | /// |
Douglas Gregor | a474561 | 2008-12-01 18:00:20 +0000 | [diff] [blame] | 1412 | /// type-id-list: |
| 1413 | /// type-id |
| 1414 | /// type-id-list ',' type-id |
Douglas Gregor | 0fe7bea | 2008-11-25 03:22:00 +0000 | [diff] [blame] | 1415 | /// |
Sebastian Redl | 7dc8134 | 2009-04-29 17:30:04 +0000 | [diff] [blame] | 1416 | bool Parser::ParseExceptionSpecification(SourceLocation &EndLoc, |
Sebastian Redl | ef65f06 | 2009-05-29 18:02:33 +0000 | [diff] [blame] | 1417 | llvm::SmallVector<TypeTy*, 2> |
| 1418 | &Exceptions, |
| 1419 | llvm::SmallVector<SourceRange, 2> |
| 1420 | &Ranges, |
Sebastian Redl | 7dc8134 | 2009-04-29 17:30:04 +0000 | [diff] [blame] | 1421 | bool &hasAnyExceptionSpec) { |
Douglas Gregor | 0fe7bea | 2008-11-25 03:22:00 +0000 | [diff] [blame] | 1422 | assert(Tok.is(tok::kw_throw) && "expected throw"); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1423 | |
Douglas Gregor | 0fe7bea | 2008-11-25 03:22:00 +0000 | [diff] [blame] | 1424 | SourceLocation ThrowLoc = ConsumeToken(); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1425 | |
Douglas Gregor | 0fe7bea | 2008-11-25 03:22:00 +0000 | [diff] [blame] | 1426 | if (!Tok.is(tok::l_paren)) { |
| 1427 | return Diag(Tok, diag::err_expected_lparen_after) << "throw"; |
| 1428 | } |
| 1429 | SourceLocation LParenLoc = ConsumeParen(); |
| 1430 | |
Douglas Gregor | a474561 | 2008-12-01 18:00:20 +0000 | [diff] [blame] | 1431 | // Parse throw(...), a Microsoft extension that means "this function |
| 1432 | // can throw anything". |
| 1433 | if (Tok.is(tok::ellipsis)) { |
Sebastian Redl | 7dc8134 | 2009-04-29 17:30:04 +0000 | [diff] [blame] | 1434 | hasAnyExceptionSpec = true; |
Douglas Gregor | a474561 | 2008-12-01 18:00:20 +0000 | [diff] [blame] | 1435 | SourceLocation EllipsisLoc = ConsumeToken(); |
| 1436 | if (!getLang().Microsoft) |
| 1437 | Diag(EllipsisLoc, diag::ext_ellipsis_exception_spec); |
Sebastian Redl | ab197ba | 2009-02-09 18:23:29 +0000 | [diff] [blame] | 1438 | EndLoc = MatchRHSPunctuation(tok::r_paren, LParenLoc); |
Douglas Gregor | a474561 | 2008-12-01 18:00:20 +0000 | [diff] [blame] | 1439 | return false; |
| 1440 | } |
| 1441 | |
Douglas Gregor | 0fe7bea | 2008-11-25 03:22:00 +0000 | [diff] [blame] | 1442 | // Parse the sequence of type-ids. |
Sebastian Redl | ef65f06 | 2009-05-29 18:02:33 +0000 | [diff] [blame] | 1443 | SourceRange Range; |
Douglas Gregor | 0fe7bea | 2008-11-25 03:22:00 +0000 | [diff] [blame] | 1444 | while (Tok.isNot(tok::r_paren)) { |
Sebastian Redl | ef65f06 | 2009-05-29 18:02:33 +0000 | [diff] [blame] | 1445 | TypeResult Res(ParseTypeName(&Range)); |
| 1446 | if (!Res.isInvalid()) { |
Sebastian Redl | 7dc8134 | 2009-04-29 17:30:04 +0000 | [diff] [blame] | 1447 | Exceptions.push_back(Res.get()); |
Sebastian Redl | ef65f06 | 2009-05-29 18:02:33 +0000 | [diff] [blame] | 1448 | Ranges.push_back(Range); |
| 1449 | } |
Douglas Gregor | 0fe7bea | 2008-11-25 03:22:00 +0000 | [diff] [blame] | 1450 | if (Tok.is(tok::comma)) |
| 1451 | ConsumeToken(); |
Sebastian Redl | 7dc8134 | 2009-04-29 17:30:04 +0000 | [diff] [blame] | 1452 | else |
Douglas Gregor | 0fe7bea | 2008-11-25 03:22:00 +0000 | [diff] [blame] | 1453 | break; |
| 1454 | } |
| 1455 | |
Sebastian Redl | ab197ba | 2009-02-09 18:23:29 +0000 | [diff] [blame] | 1456 | EndLoc = MatchRHSPunctuation(tok::r_paren, LParenLoc); |
Douglas Gregor | 0fe7bea | 2008-11-25 03:22:00 +0000 | [diff] [blame] | 1457 | return false; |
| 1458 | } |
Douglas Gregor | 6569d68 | 2009-05-27 23:11:45 +0000 | [diff] [blame] | 1459 | |
| 1460 | /// \brief We have just started parsing the definition of a new class, |
| 1461 | /// so push that class onto our stack of classes that is currently |
| 1462 | /// being parsed. |
| 1463 | void Parser::PushParsingClass(DeclPtrTy ClassDecl, bool TopLevelClass) { |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1464 | assert((TopLevelClass || !ClassStack.empty()) && |
Douglas Gregor | 6569d68 | 2009-05-27 23:11:45 +0000 | [diff] [blame] | 1465 | "Nested class without outer class"); |
| 1466 | ClassStack.push(new ParsingClass(ClassDecl, TopLevelClass)); |
| 1467 | } |
| 1468 | |
| 1469 | /// \brief Deallocate the given parsed class and all of its nested |
| 1470 | /// classes. |
| 1471 | void Parser::DeallocateParsedClasses(Parser::ParsingClass *Class) { |
| 1472 | for (unsigned I = 0, N = Class->NestedClasses.size(); I != N; ++I) |
| 1473 | DeallocateParsedClasses(Class->NestedClasses[I]); |
| 1474 | delete Class; |
| 1475 | } |
| 1476 | |
| 1477 | /// \brief Pop the top class of the stack of classes that are |
| 1478 | /// currently being parsed. |
| 1479 | /// |
| 1480 | /// This routine should be called when we have finished parsing the |
| 1481 | /// definition of a class, but have not yet popped the Scope |
| 1482 | /// associated with the class's definition. |
| 1483 | /// |
| 1484 | /// \returns true if the class we've popped is a top-level class, |
| 1485 | /// false otherwise. |
| 1486 | void Parser::PopParsingClass() { |
| 1487 | assert(!ClassStack.empty() && "Mismatched push/pop for class parsing"); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1488 | |
Douglas Gregor | 6569d68 | 2009-05-27 23:11:45 +0000 | [diff] [blame] | 1489 | ParsingClass *Victim = ClassStack.top(); |
| 1490 | ClassStack.pop(); |
| 1491 | if (Victim->TopLevelClass) { |
| 1492 | // Deallocate all of the nested classes of this class, |
| 1493 | // recursively: we don't need to keep any of this information. |
| 1494 | DeallocateParsedClasses(Victim); |
| 1495 | return; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1496 | } |
Douglas Gregor | 6569d68 | 2009-05-27 23:11:45 +0000 | [diff] [blame] | 1497 | assert(!ClassStack.empty() && "Missing top-level class?"); |
| 1498 | |
| 1499 | if (Victim->MethodDecls.empty() && Victim->MethodDefs.empty() && |
| 1500 | Victim->NestedClasses.empty()) { |
| 1501 | // The victim is a nested class, but we will not need to perform |
| 1502 | // any processing after the definition of this class since it has |
| 1503 | // no members whose handling was delayed. Therefore, we can just |
| 1504 | // remove this nested class. |
| 1505 | delete Victim; |
| 1506 | return; |
| 1507 | } |
| 1508 | |
| 1509 | // This nested class has some members that will need to be processed |
| 1510 | // after the top-level class is completely defined. Therefore, add |
| 1511 | // it to the list of nested classes within its parent. |
| 1512 | assert(CurScope->isClassScope() && "Nested class outside of class scope?"); |
| 1513 | ClassStack.top()->NestedClasses.push_back(Victim); |
| 1514 | Victim->TemplateScope = CurScope->getParent()->isTemplateParamScope(); |
| 1515 | } |