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nsIArray.h
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2006-05-08
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406 lines
/*
* DO NOT EDIT. THIS FILE IS GENERATED FROM 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__ */