path: root/Parse/ParseObjc.cpp

//===--- ParseObjc.cpp - Objective C Parsing ------------------------------===//
//
//                     The LLVM Compiler Infrastructure
//
// This file was developed by Steve Naroff and is distributed under
// the University of Illinois Open Source License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
//  This file implements the Objective-C portions of the Parser interface.
//
//===----------------------------------------------------------------------===//

#include "clang/Parse/Parser.h"
#include "clang/Parse/DeclSpec.h"
#include "clang/Basic/Diagnostic.h"
#include "llvm/ADT/SmallVector.h"
using namespace clang;


/// ParseExternalDeclaration:
///       external-declaration: [C99 6.9]
/// [OBJC]  objc-class-definition
/// [OBJC]  objc-class-declaration
/// [OBJC]  objc-alias-declaration
/// [OBJC]  objc-protocol-definition
/// [OBJC]  objc-method-definition
/// [OBJC]  '@' 'end'
Parser::DeclTy *Parser::ParseObjCAtDirectives() {
  SourceLocation AtLoc = ConsumeToken(); // the "@"
  
  switch (Tok.getObjCKeywordID()) {
    case tok::objc_class:
      return ParseObjCAtClassDeclaration(AtLoc);
    case tok::objc_interface:
      return ParseObjCAtInterfaceDeclaration(AtLoc);
    case tok::objc_protocol:
      return ParseObjCAtProtocolDeclaration(AtLoc);
    case tok::objc_implementation:
      return ObjcImpDecl = ParseObjCAtImplementationDeclaration(AtLoc);
    case tok::objc_end:
      return ParseObjCAtEndDeclaration(AtLoc);
    case tok::objc_compatibility_alias:
      return ParseObjCAtAliasDeclaration(AtLoc);
    case tok::objc_synthesize:
      return ParseObjCPropertySynthesize(AtLoc);
    case tok::objc_dynamic:
      return ParseObjCPropertyDynamic(AtLoc);
    default:
      Diag(AtLoc, diag::err_unexpected_at);
      SkipUntil(tok::semi);
      return 0;
  }
}

///
/// objc-class-declaration: 
///    '@' 'class' identifier-list ';'
///  
Parser::DeclTy *Parser::ParseObjCAtClassDeclaration(SourceLocation atLoc) {
  ConsumeToken(); // the identifier "class"
  llvm::SmallVector<IdentifierInfo *, 8> ClassNames;
  
  while (1) {
    if (Tok.isNot(tok::identifier)) {
      Diag(Tok, diag::err_expected_ident);
      SkipUntil(tok::semi);
      return 0;
    }
    ClassNames.push_back(Tok.getIdentifierInfo());
    ConsumeToken();
    
    if