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Diffstat (limited to 'clang/lib/Parse/ParseDeclCXX.cpp')
-rw-r--r-- | clang/lib/Parse/ParseDeclCXX.cpp | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/clang/lib/Parse/ParseDeclCXX.cpp b/clang/lib/Parse/ParseDeclCXX.cpp new file mode 100644 index 00000000000..46dcb574819 --- /dev/null +++ b/clang/lib/Parse/ParseDeclCXX.cpp @@ -0,0 +1,119 @@ +//===--- ParseDeclCXX.cpp - C++ Declaration Parsing -----------------------===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// +// This file implements the C++ Declaration portions of the Parser interfaces. +// +//===----------------------------------------------------------------------===// + +#include "clang/Parse/Parser.h" +#include "clang/Parse/Scope.h" +#include "clang/Basic/Diagnostic.h" +using namespace clang; + +/// ParseNamespace - We know that the current token is a namespace keyword. This +/// may either be a top level namespace or a block-level namespace alias. +/// +/// namespace-definition: [C++ 7.3: basic.namespace] +/// named-namespace-definition +/// unnamed-namespace-definition +/// +/// unnamed-namespace-definition: +/// 'namespace' attributes[opt] '{' namespace-body '}' +/// +/// named-namespace-definition: +/// original-namespace-definition +/// extension-namespace-definition +/// +/// original-namespace-definition: +/// 'namespace' identifier attributes[opt] '{' namespace-body '}' +/// +/// extension-namespace-definition: +/// 'namespace' original-namespace-name '{' namespace-body '}' +/// +/// namespace-alias-definition: [C++ 7.3.2: namespace.alias] +/// 'namespace' identifier '=' qualified-namespace-specifier ';' +/// +Parser::DeclTy *Parser::ParseNamespace(unsigned Context) { + assert(Tok.is(tok::kw_namespace) && "Not a namespace!"); + SourceLocation NamespaceLoc = ConsumeToken(); // eat the 'namespace'. + + SourceLocation IdentLoc; + IdentifierInfo *Ident = 0; + + if (Tok.is(tok::identifier)) { + Ident = Tok.getIdentifierInfo(); + IdentLoc = ConsumeToken(); // eat the identifier. + } + + // Read label attributes, if present. + DeclTy *AttrList = 0; + if (Tok.is(tok::kw___attribute)) + // FIXME: save these somewhere. + AttrList = ParseAttributes(); + + if (Tok.is(tok::equal)) { + // FIXME: Verify no attributes were present. + // FIXME: parse this. + } else if (Tok.is(tok::l_brace)) { + SourceLocation LBrace = ConsumeBrace(); + // FIXME: push a scope, push a namespace decl. + + while (Tok.isNot(tok::r_brace) && Tok.isNot(tok::eof)) { + // FIXME capture the decls. + ParseExternalDeclaration(); + } + + SourceLocation RBrace = MatchRHSPunctuation(tok::r_brace, LBrace); + + // FIXME: act on this. + } else { + unsigned D = Ident ? diag::err_expected_lbrace : + diag::err_expected_ident_lbrace; + Diag(Tok.getLocation(), D); + } + + return 0; +} + +/// ParseLinkage - We know that the current token is a string_literal +/// and just before that, that extern was seen. +/// +/// linkage-specification: [C++ 7.5p2: dcl.link] +/// 'extern' string-literal '{' declaration-seq[opt] '}' +/// 'extern' string-literal declaration +/// +Parser::DeclTy *Parser::ParseLinkage(unsigned Context) { + assert(Tok.is(tok::string_literal) && "Not a stringliteral!"); + llvm::SmallVector<char, 8> LangBuffer; + // LangBuffer is guaranteed to be big enough. + LangBuffer.resize(Tok.getLength()); + const char *LangBufPtr = &LangBuffer[0]; + unsigned StrSize = PP.getSpelling(Tok, LangBufPtr); + + SourceLocation Loc = ConsumeStringToken(); + DeclTy *D = 0; + SourceLocation LBrace, RBrace; + + if (Tok.isNot(tok::l_brace)) { + D = ParseDeclaration(Context); + } else { + LBrace = ConsumeBrace(); + while (Tok.isNot(tok::r_brace) && Tok.isNot(tok::eof)) { + // FIXME capture the decls. + D = ParseExternalDeclaration(); + } + + RBrace = MatchRHSPunctuation(tok::r_brace, LBrace); + } + + if (!D) + return 0; + + return Actions.ActOnLinkageSpec(Loc, LBrace, RBrace, LangBufPtr, StrSize, D); +} |