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-rw-r--r--clang/lib/Parse/ParseDeclCXX.cpp119
1 files changed, 119 insertions, 0 deletions
diff --git a/clang/lib/Parse/ParseDeclCXX.cpp b/clang/lib/Parse/ParseDeclCXX.cpp
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+++ b/clang/lib/Parse/ParseDeclCXX.cpp
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+//===--- 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);
+}
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