path: root/lib/Sema/Sema.cpp

//===--- Sema.cpp - AST Builder and Semantic Analysis Implementation ------===//
//
//                     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 actions class which performs semantic analysis and
// builds an AST out of a parse stream.
//
//===----------------------------------------------------------------------===//

#include "clang/Sema/SemaInternal.h"
#include "TargetAttributesSema.h"
#include "clang/AST/ASTContext.h"
#include "clang/AST/ASTDiagnostic.h"
#include "clang/AST/DeclCXX.h"
#include "clang/AST/DeclFriend.h"
#include "clang/AST/DeclObjC.h"
#include "clang/AST/Expr.h"
#include "clang/AST/ExprCXX.h"
#include "clang/AST/StmtCXX.h"
#include "clang/Basic/FileManager.h"
#include "clang/Basic/PartialDiagnostic.h"
#include "clang/Basic/TargetInfo.h"
#include "clang/Lex/HeaderSearch.h"
#include "clang/Lex/Preprocessor.h"
#include "clang/Sema/CXXFieldCollector.h"
#include "clang/Sema/DelayedDiagnostic.h"
#include "clang/Sema/ExternalSemaSource.h"
#include "clang/Sema/MultiplexExternalSemaSource.h"
#include "clang/Sema/ObjCMethodList.h"
#include "clang/Sema/PrettyDeclStackTrace.h"
#include "clang/Sema/Scope.h"
#include "clang/Sema/ScopeInfo.h"
#include "clang/Sema/SemaConsumer.h"
#include "clang/Sema/TemplateDeduction.h"
#include "llvm/ADT/APFloat.h"
#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/SmallSet.h"
#include "llvm/Support/CrashRecoveryContext.h"
using namespace clang;
using namespace sema;

PrintingPolicy Sema::getPrintingPolicy(const ASTContext &Context,
                                       const Preprocessor &PP) {
  PrintingPolicy Policy = Context.getPrintingPolicy();
  Policy.Bool = Context.getLangOpts().Bool;
  if (!Policy.Bool) {
    if (const MacroInfo *
          BoolMacro = PP.getMacroInfo(&Context.Idents.get("bool"))) {
      Policy.Bool = BoolMacro->isObjectLike() &&
        BoolMacro->getNumTokens() == 1 &&
        BoolMacro->getReplacementToken(0).is(tok::kw__Bool);
    }
  }

  return Policy;
}

void Sema::ActOnTranslationUnitScope(Scope *S) {
  TUScope = S;
  PushDeclContext(S, Context.getTranslationUnitDecl());

  VAListTagName = PP.getIdentifierInfo("__va_list_tag");
}

Sema::Sema(Preprocessor &pp, ASTContext &ctxt, ASTConsumer &consumer,
           TranslationUnitKind TUKind,
           CodeCompleteConsumer *CodeCompleter)
  : TheTargetAttributesSema(0), ExternalSource(0),
    isMultiplexExternalSource(false), FPFeatures(pp.getLangOpts()),
    LangOpts(pp.getLangOpts()), PP(pp), Context(ctxt), Consumer(consumer),
    Diags