tools/CIndex/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.
//
//===----------------------------------------------------------------------===//

#include "CXCursor.h"
#include "clang/AST/Decl.h"
#include "clang/AST/DeclObjC.h"
#include "clang/AST/Expr.h"

using namespace clang;

CXCursor cxcursor::MakeCXCursor(CXCursorKind K, Decl *D) {
  CXCursor C = { K, { D, 0, 0 } };
  return C;  
}

CXCursor cxcursor::MakeCXCursor(CXCursorKind K, Decl *D, Stmt *S) {
  assert(clang_isReference(K));
  CXCursor C = { K, { D, S, 0 } };
  return C;  
}

Decl *cxcursor::getCursorDecl(CXCursor Cursor) {
  return (Decl *)Cursor.data[0];
}

Expr *cxcursor::getCursorExpr(CXCursor Cursor) {
  return dyn_cast_or_null<Expr>(getCursorStmt(Cursor));
}

Stmt *cxcursor::getCursorStmt(CXCursor Cursor) {
  return (Stmt *)Cursor.data[1];
}

Decl *cxcursor::getCursorReferringDecl(CXCursor Cursor) {
  return (Decl *)Cursor.data[2];
}

NamedDecl *cxcursor::getCursorInterfaceParent(CXCursor Cursor) {
  assert(Cursor.kind == CXCursor_ObjCClassRef);
  assert(isa<ObjCInterfaceDecl>(getCursorDecl(Cursor)));
  // FIXME: This is a hack (storing the parent decl in the stmt slot).
  return static_cast<NamedDecl *>(Cursor.data[1]);
}

bool cxcursor::operator==(CXCursor X, CXCursor Y) {
  return X.kind == Y.kind && X.data[0] == Y.data[0] && X.data[1] == Y.data[1] &&
         X.data[2] == Y.data[2];
}