path: root/tools/libclang/CXCursor.cpp

//===- CXCursor.cpp - Routines for manipulating CXCursors -----------------===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file defines routines for manipulating CXCursors. It should be the
// only file that has internal knowledge of the encoding of the data in
// CXCursor.
//
//===----------------------------------------------------------------------===//

#include "CXTranslationUnit.h"
#include "CXCursor.h"
#include "CXString.h"
#include "clang/Frontend/ASTUnit.h"
#include "clang/AST/Decl.h"
#include "clang/AST/DeclCXX.h"
#include "clang/AST/DeclObjC.h"
#include "clang/AST/DeclTemplate.h"
#include "clang/AST/Expr.h"
#include "clang/AST/ExprCXX.h"
#include "clang/AST/ExprObjC.h"
#include "clang-c/Index.h"
#include "llvm/Support/ErrorHandling.h"

using namespace clang;
using namespace cxcursor;

CXCursor cxcursor::MakeCXCursorInvalid(CXCursorKind K) {
  assert(K >= CXCursor_FirstInvalid && K <= CXCursor_LastInvalid);
  CXCursor C = { K, 0, { 0, 0, 0 } };
  return C;
}

static CXCursorKind GetCursorKind(const Attr *A) {
  assert(A && "Invalid arguments!");
  switch (A->getKind()) {
    default: break;
    case attr::IBAction: return CXCursor_IBActionAttr;
    case attr::IBOutlet: return CXCursor_IBOutletAttr;
    case attr::IBOutletCollection: return CXCursor_IBOutletCollectionAttr;
    case attr::Final: return CXCursor_CXXFinalAttr;
    case attr::Override: return CXCursor_CXXOverrideAttr;
    case attr::Annotate: return CXCursor_AnnotateAttr;
    case attr::AsmLabel: return CXCursor_AsmLabelAttr;
  }

  return CXCursor_UnexposedAttr;
}

CXCursor cxcursor::MakeCXCursor(const Attr *A, Decl *Parent,
                                CXTranslationUnit TU) {
  assert(A && Parent && TU && "Invalid arguments!");
  CXCursor C = { GetCursorKind(A), 0, { Parent, (void*)A, TU } };
  return C;
}

CXCursor cxcursor::MakeCXCursor(Decl *D, CXTranslationUnit TU,
                                SourceRange RegionOfInterest,
                                bool FirstInDeclGroup) {
  assert(D && TU && "Invalid arguments!");

  CXCursorKind K = getCursorKindForDecl(D);

  if (K == CXCursor_ObjCClassMethodDecl ||
      K == CXCursor_ObjCInstanceMethodDecl) {
    int SelectorIdIndex = -1;
    // Check if cursor points to a selector id.
    if (RegionOfInterest.isValid() &&
        RegionOfInterest.getBegin() == RegionOfInterest.getEnd()) {
      SmallVector<SourceLocation, 16> SelLocs;
      cast<ObjCMethodDecl>(D)->getSelectorLocs(SelLocs);
      SmallVector<SourceLocation, 16>::iterator
        I=std::find(SelLocs.begin(), SelLocs.end(),RegionOfInterest.getBegin());
      if (I != SelLocs.end())
        SelectorIdIndex = I - SelLocs.begin();
    }
    CXCursor C = { K, SelectorIdIndex,
                   { D, (void*)(intptr_t) (FirstInDeclGroup ? 1 : 0), TU }};
    return C;
  }
  
  CXCursor C = { K, 0, { D, (void*)(intptr_t) (FirstInDeclGroup ? 1 : 0), TU }};
  return C;
}

CXCursor cxcursor::MakeCXCursor(Stmt *S, Decl *Parent, CXTranslationUnit TU,
                                SourceRange RegionOfInterest) {
  assert(S && TU && "Invalid arguments!");
  CXCursorKind K = CXCursor_NotImplemented;
  
  switch (S->getStmtClass()) {
  case Stmt::NoStmtClass:
    break;
  
  case Stmt::CaseStmtClass:
    K = CXCursor_CaseStmt;
    <