/*
 * DO NOT EDIT.  THIS FILE IS GENERATED FROM h:/projects/mozilla/mozilla/xpcom/ds/nsIArray.idl
 */

#ifndef __gen_nsIArray_h__
#define __gen_nsIArray_h__


#ifndef __gen_nsISupports_h__
#include "nsISupports.h"
#endif

/* For IDL files that don't want to include root IDL files. */
#ifndef NS_NO_VTABLE
#define NS_NO_VTABLE
#endif
class nsISimpleEnumerator; /* forward declaration */


/* starting interface:    nsIArray */
#define NS_IARRAY_IID_STR "114744d9-c369-456e-b55a-52fe52880d2d"

#define NS_IARRAY_IID \
  {0x114744d9, 0xc369, 0x456e, \
    { 0xb5, 0x5a, 0x52, 0xfe, 0x52, 0x88, 0x0d, 0x2d }}

/**
 * nsIArray
 *
 * An indexed collection of elements. Provides basic functionality for
 * retrieving elements at a specific position, searching for
 * elements. Indexes are zero-based, such that the last element in the
 * array is stored at the index length-1.
 *
 * For an array which can be modified, see nsIMutableArray below.
 *
 * Neither interface makes any attempt to protect the individual
 * elements from modification. The convention is that the elements of
 * the array should not be modified. Documentation within a specific
 * interface should describe variations from this convention.
 *
 * It is also convention that if an interface provides access to an
 * nsIArray, that the array should not be QueryInterfaced to an
 * nsIMutableArray for modification. If the interface in question had
 * intended the array to be modified, it would have returned an
 * nsIMutableArray!
 *
 * null is a valid entry in the array, and as such any nsISupports
 * parameters may be null, except where noted.
 *
 * @status UNDER_REVIEW
 */
class NS_NO_VTABLE nsIArray : public nsISupports {
 public: 

  NS_DEFINE_STATIC_IID_ACCESSOR(NS_IARRAY_IID)

  /**
     * length
     *
     * number of elements in the array.
     */
  /* readonly attribute unsigned long length; */
  NS_IMETHOD GetLength(PRUint32 *aLength) = 0;

  /**
     * queryElementAt()
     *
     * Retrieve a specific element of the array, and QueryInterface it
     * to the specified interface. null is a valid result for
     * this method, but exceptions are thrown in other circumstances
     * 
     * @param index position of element
     * @param uuid the IID of the requested interface
     * @param result the object, QI'd to the requested interface
     *
     * @throws NS_ERROR_NO_INTERFACE when an entry exists at the
     *         specified index, but the requested interface is not
     *         available.
     * @throws NS_ERROR_ILLEGAL_VALUE when index > length-1
     *
     */
  /* void queryElementAt (in unsigned long index, in nsIIDRef uuid, [iid_is (uuid), retval] out nsQIResult result); */
  NS_IMETHOD QueryElementAt(PRUint32 index, const nsIID & uuid, void * *result) = 0;

  /**
     * indexOf()
     * 
     * Get the position of a specific element. Note that since null is
     * a valid input, exceptions are used to indicate that an element
     * is not found.
     * 
     * @param startIndex The initial element to search in the array
     *                   To start at the beginning, use 0 as the
     *                   startIndex
     * @param element    The element you are looking for
     * @returns a number >= startIndex which is the position of the
     *          element in the array.
     * @throws NS_ERROR_NOT_FOUND if the element was not in the array.
     */
  /* unsigned long indexOf (in unsigned long startIndex, in nsISupports element); */
  NS_IMETHOD IndexOf(PRUint32 startIndex, nsISupports *element, PRUint32 *_retval) = 0;

  /**
     * enumerate the array
     *
     * @returns a new enumerator positioned at the start of the array
     * @throws NS_ERROR_FAILURE if the array is empty (to make it easy
     *         to detect errors)
     */
  /* nsISimpleEnumerator enumerate (); */
  NS_IMETHOD Enumerate(nsISimpleEnumerator **_retval) = 0;

};

/* Use this macro when declaring classes that implement this interface. */
#define NS_DECL_NSIARRAY \
  NS_IMETHOD GetLength(PRUint32 *aLength); \
  NS_IMETHOD QueryElementAt(PRUint32 index, const nsIID & uuid, void * *result); \
  NS_IMETHOD IndexOf(PRUint32 startIndex, nsISupports *element, PRUint32 *_retval); \
  NS_IMETHOD Enumerate(nsISimpleEnumerator **_retval); 

/* Use this macro to declare functions that forward the behavior of this interface to another object. */
#define NS_FORWARD_NSIARRAY(_to) \
  NS_IMETHOD GetLength(PRUint32 *aLength) { return _to GetLength(aLength); } \
  NS_IMETHOD QueryElementAt(PRUint32 index, const nsIID & uuid, void * *result) { return _to QueryElementAt(index, uuid, result); } \
  NS_IMETHOD IndexOf(PRUint32 startIndex, nsISupports *element, PRUint32 *_retval) { return _to IndexOf(startIndex, element, _retval); } \
  NS_IMETHOD Enumerate(nsISimpleEnumerator **_retval) { return _to Enumerate(_retval); } 

/* Use this macro to declare functions that forward the behavior of this interface to another object in a safe way. */
#define NS_FORWARD_SAFE_NSIARRAY(_to) \
  NS_IMETHOD GetLength(PRUint32 *aLength) { return !_to ? NS_ERROR_NULL_POINTER : _to->GetLength(aLength); } \
  NS_IMETHOD QueryElementAt(PRUint32 index, const nsIID & uuid, void * *result) { return !_to ? NS_ERROR_NULL_POINTER : _to->QueryElementAt(index, uuid, result); } \
  NS_IMETHOD IndexOf(PRUint32 startIndex, nsISupports *element, PRUint32 *_retval) { return !_to ? NS_ERROR_NULL_POINTER : _to->IndexOf(startIndex, element, _retval); } \
  NS_IMETHOD Enumerate(nsISimpleEnumerator **_retval) { return !_to ? NS_ERROR_NULL_POINTER : _to->Enumerate(_retval); } 

#if 0
/* Use the code below as a template for the implementation class for this interface. */

/* Header file */
class nsArray : public nsIArray
{
public:
  NS_DECL_ISUPPORTS
  NS_DECL_NSIARRAY

  nsArray();

private:
  ~nsArray();

protected:
  /* additional members */
};

/* Implementation file */
NS_IMPL_ISUPPORTS1(nsArray, nsIArray)

nsArray::nsArray()
{
  /* member initializers and constructor code */
}

nsArray::~nsArray()
{
  /* destructor code */
}

/* readonly attribute unsigned long length; */
NS_IMETHODIMP nsArray::GetLength(PRUint32 *aLength)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* void queryElementAt (in unsigned long index, in nsIIDRef uuid, [iid_is (uuid), retval] out nsQIResult result); */
NS_IMETHODIMP nsArray::QueryElementAt(PRUint32 index, const nsIID & uuid, void * *result)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* unsigned long indexOf (in unsigned long startIndex, in nsISupports element); */
NS_IMETHODIMP nsArray::IndexOf(PRUint32 startIndex, nsISupports *element, PRUint32 *_retval)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* nsISimpleEnumerator enumerate (); */
NS_IMETHODIMP nsArray::Enumerate(nsISimpleEnumerator **_retval)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* End of implementation class template. */
#endif


/* starting interface:    nsIMutableArray */
#define NS_IMUTABLEARRAY_IID_STR "af059da0-c85b-40ec-af07-ae4bfdc192cc"

#define NS_IMUTABLEARRAY_IID \
  {0xaf059da0, 0xc85b, 0x40ec, \
    { 0xaf, 0x07, 0xae, 0x4b, 0xfd, 0xc1, 0x92, 0xcc }}

/**
 * nsIMutableArray
 * A separate set of methods that will act on the array. Consumers of
 * nsIArray should not QueryInterface to nsIMutableArray unless they
 * own the array.
 *
 * As above, it is legal to add null elements to the array. Note also
 * that null elements can be created as a side effect of
 * insertElementAt(). Conversely, if insertElementAt() is never used,
 * and null elements are never explicitly added to the array, then it
 * is guaranteed that queryElementAt() will never return a null value.
 *
 * Any of these methods may throw NS_ERROR_OUT_OF_MEMORY when the
 * array must grow to complete the call, but the allocation fails.
 *
 * @status UNDER_REVIEW
 */
class NS_NO_VTABLE nsIMutableArray : public nsIArray {
 public: 

  NS_DEFINE_STATIC_IID_ACCESSOR(NS_IMUTABLEARRAY_IID)

  /**
     * appendElement()
     * 
     * Append an element at the end of the array.
     *
     * @param element The element to append.
     * @param weak    Whether or not to store the element using a weak
     *                reference.
     * @throws NS_ERROR_FAILURE when a weak reference is requested,
     *                          but the element does not support
     *                          nsIWeakReference.
     */
  /* void appendElement (in nsISupports element, in boolean weak); */
  NS_IMETHOD AppendElement(nsISupports *element, PRBool weak) = 0;

  /**
     * removeElementAt()
     * 
     * Remove an element at a specific position, moving all elements
     * stored at a higher position down one.
     * To remove a specific element, use indexOf() to find the index
     * first, then call removeElementAt().
     *
     * @param index the position of the item
     *
     */
  /* void removeElementAt (in unsigned long index); */
  NS_IMETHOD RemoveElementAt(PRUint32 index) = 0;

  /**
     * insertElementAt()
     *
     * Insert an element at the given position, moving the element 
     * currently located in that position, and all elements in higher
     * position, up by one.
     *
     * @param element The element to insert
     * @param index   The position in the array:
     *                If the position is lower than the current length
     *                of the array, the elements at that position and
     *                onwards are bumped one position up.
     *                If the position is equal to the current length
     *                of the array, the new element is appended.
     *                An index lower than 0 or higher than the current
     *                length of the array is invalid and will be ignored.
     *
     * @throws NS_ERROR_FAILURE when a weak reference is requested,
     *                          but the element does not support
     *                          nsIWeakReference.
     */
  /* void insertElementAt (in nsISupports element, in unsigned long index, in boolean weak); */
  NS_IMETHOD InsertElementAt(nsISupports *element, PRUint32 index, PRBool weak) = 0;

  /**
     * replaceElementAt()
     *
     * Replace the element at the given position.
     *
     * @param element The new element to insert
     * @param index   The position in the array
     *                If the position is lower than the current length
     *                of the array, an existing element will be replaced.
     *                If the position is equal to the current length
     *                of the array, the new element is appended.
     *                If the position is higher than the current length
     *                of the array, empty elements are appended followed
     *                by the new element at the specified position.
     *                An index lower than 0 is invalid and will be ignored.
     *
     * @param weak    Whether or not to store the new element using a weak
     *                reference.
     *
     * @throws NS_ERROR_FAILURE when a weak reference is requested,
     *                          but the element does not support
     *                          nsIWeakReference.
     */
  /* void replaceElementAt (in nsISupports element, in unsigned long index, in boolean weak); */
  NS_IMETHOD ReplaceElementAt(nsISupports *element, PRUint32 index, PRBool weak) = 0;

  /**
     * clear()
     *
     * clear the entire array, releasing all stored objects
     */
  /* void clear (); */
  NS_IMETHOD Clear(void) = 0;

};

/* Use this macro when declaring classes that implement this interface. */
#define NS_DECL_NSIMUTABLEARRAY \
  NS_IMETHOD AppendElement(nsISupports *element, PRBool weak); \
  NS_IMETHOD RemoveElementAt(PRUint32 index); \
  NS_IMETHOD InsertElementAt(nsISupports *element, PRUint32 index, PRBool weak); \
  NS_IMETHOD ReplaceElementAt(nsISupports *element, PRUint32 index, PRBool weak); \
  NS_IMETHOD Clear(void); 

/* Use this macro to declare functions that forward the behavior of this interface to another object. */
#define NS_FORWARD_NSIMUTABLEARRAY(_to) \
  NS_IMETHOD AppendElement(nsISupports *element, PRBool weak) { return _to AppendElement(element, weak); } \
  NS_IMETHOD RemoveElementAt(PRUint32 index) { return _to RemoveElementAt(index); } \
  NS_IMETHOD InsertElementAt(nsISupports *element, PRUint32 index, PRBool weak) { return _to InsertElementAt(element, index, weak); } \
  NS_IMETHOD ReplaceElementAt(nsISupports *element, PRUint32 index, PRBool weak) { return _to ReplaceElementAt(element, index, weak); } \
  NS_IMETHOD Clear(void) { return _to Clear(); } 

/* Use this macro to declare functions that forward the behavior of this interface to another object in a safe way. */
#define NS_FORWARD_SAFE_NSIMUTABLEARRAY(_to) \
  NS_IMETHOD AppendElement(nsISupports *element, PRBool weak) { return !_to ? NS_ERROR_NULL_POINTER : _to->AppendElement(element, weak); } \
  NS_IMETHOD RemoveElementAt(PRUint32 index) { return !_to ? NS_ERROR_NULL_POINTER : _to->RemoveElementAt(index); } \
  NS_IMETHOD InsertElementAt(nsISupports *element, PRUint32 index, PRBool weak) { return !_to ? NS_ERROR_NULL_POINTER : _to->InsertElementAt(element, index, weak); } \
  NS_IMETHOD ReplaceElementAt(nsISupports *element, PRUint32 index, PRBool weak) { return !_to ? NS_ERROR_NULL_POINTER : _to->ReplaceElementAt(element, index, weak); } \
  NS_IMETHOD Clear(void) { return !_to ? NS_ERROR_NULL_POINTER : _to->Clear(); } 

#if 0
/* Use the code below as a template for the implementation class for this interface. */

/* Header file */
class nsMutableArray : public nsIMutableArray
{
public:
  NS_DECL_ISUPPORTS
  NS_DECL_NSIMUTABLEARRAY

  nsMutableArray();

private:
  ~nsMutableArray();

protected:
  /* additional members */
};

/* Implementation file */
NS_IMPL_ISUPPORTS1(nsMutableArray, nsIMutableArray)

nsMutableArray::nsMutableArray()
{
  /* member initializers and constructor code */
}

nsMutableArray::~nsMutableArray()
{
  /* destructor code */
}

/* void appendElement (in nsISupports element, in boolean weak); */
NS_IMETHODIMP nsMutableArray::AppendElement(nsISupports *element, PRBool weak)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* void removeElementAt (in unsigned long index); */
NS_IMETHODIMP nsMutableArray::RemoveElementAt(PRUint32 index)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* void insertElementAt (in nsISupports element, in unsigned long index, in boolean weak); */
NS_IMETHODIMP nsMutableArray::InsertElementAt(nsISupports *element, PRUint32 index, PRBool weak)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* void replaceElementAt (in nsISupports element, in unsigned long index, in boolean weak); */
NS_IMETHODIMP nsMutableArray::ReplaceElementAt(nsISupports *element, PRUint32 index, PRBool weak)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* void clear (); */
NS_IMETHODIMP nsMutableArray::Clear()
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* End of implementation class template. */
#endif


#endif /* __gen_nsIArray_h__ */
