gecko-dev/xpcom/ds/nsSupportsArray.h

130 lines
4.2 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef nsSupportsArray_h__
#define nsSupportsArray_h__
//#define DEBUG_SUPPORTSARRAY 1
#include "nsISupportsArray.h"
#include "mozilla/Attributes.h"
static const uint32_t kAutoArraySize = 8;
class nsSupportsArray MOZ_FINAL : public nsISupportsArray {
public:
nsSupportsArray(void);
~nsSupportsArray(void); // nonvirtual since we're not subclassed
static nsresult
Create(nsISupports *aOuter, REFNSIID aIID, void **aResult);
NS_DECL_ISUPPORTS
NS_DECL_NSISERIALIZABLE
// nsICollection methods:
NS_IMETHOD Count(uint32_t *result) { *result = mCount; return NS_OK; }
NS_IMETHOD GetElementAt(uint32_t aIndex, nsISupports* *result);
NS_IMETHOD QueryElementAt(uint32_t aIndex, const nsIID & aIID, void * *aResult) {
if (aIndex < mCount) {
nsISupports* element = mArray[aIndex];
if (nullptr != element)
return element->QueryInterface(aIID, aResult);
}
return NS_ERROR_FAILURE;
}
NS_IMETHOD SetElementAt(uint32_t aIndex, nsISupports* value) {
return ReplaceElementAt(value, aIndex) ? NS_OK : NS_ERROR_FAILURE;
}
NS_IMETHOD AppendElement(nsISupports *aElement) {
// XXX Invalid cast of bool to nsresult (bug 778110)
return (nsresult)InsertElementAt(aElement, mCount)/* ? NS_OK : NS_ERROR_FAILURE*/;
}
// XXX this is badly named - should be RemoveFirstElement
NS_IMETHOD RemoveElement(nsISupports *aElement) {
// XXX Invalid cast of bool to nsresult (bug 778110)
return (nsresult)RemoveElement(aElement, 0)/* ? NS_OK : NS_ERROR_FAILURE*/;
}
NS_IMETHOD_(bool) MoveElement(int32_t aFrom, int32_t aTo);
NS_IMETHOD Enumerate(nsIEnumerator* *result);
NS_IMETHOD Clear(void);
// nsISupportsArray methods:
NS_IMETHOD_(bool) Equals(const nsISupportsArray* aOther);
NS_IMETHOD_(int32_t) IndexOf(const nsISupports* aPossibleElement);
NS_IMETHOD_(int32_t) IndexOfStartingAt(const nsISupports* aPossibleElement,
uint32_t aStartIndex = 0);
NS_IMETHOD_(int32_t) LastIndexOf(const nsISupports* aPossibleElement);
NS_IMETHOD GetIndexOf(nsISupports *aPossibleElement, int32_t *_retval) {
*_retval = IndexOf(aPossibleElement);
return NS_OK;
}
NS_IMETHOD GetIndexOfStartingAt(nsISupports *aPossibleElement,
uint32_t aStartIndex, int32_t *_retval) {
*_retval = IndexOfStartingAt(aPossibleElement, aStartIndex);
return NS_OK;
}
NS_IMETHOD GetLastIndexOf(nsISupports *aPossibleElement, int32_t *_retval) {
*_retval = LastIndexOf(aPossibleElement);
return NS_OK;
}
NS_IMETHOD_(bool) InsertElementAt(nsISupports* aElement, uint32_t aIndex);
NS_IMETHOD_(bool) ReplaceElementAt(nsISupports* aElement, uint32_t aIndex);
NS_IMETHOD_(bool) RemoveElementAt(uint32_t aIndex) {
return RemoveElementsAt(aIndex,1);
}
NS_IMETHOD_(bool) RemoveElement(const nsISupports* aElement, uint32_t aStartIndex = 0);
NS_IMETHOD_(bool) RemoveLastElement(const nsISupports* aElement);
NS_IMETHOD DeleteLastElement(nsISupports *aElement) {
return (RemoveLastElement(aElement) ? NS_OK : NS_ERROR_FAILURE);
}
NS_IMETHOD DeleteElementAt(uint32_t aIndex) {
return (RemoveElementAt(aIndex) ? NS_OK : NS_ERROR_FAILURE);
}
NS_IMETHOD_(bool) AppendElements(nsISupportsArray* aElements) {
return InsertElementsAt(aElements,mCount);
}
NS_IMETHOD Compact(void);
NS_IMETHOD Clone(nsISupportsArray **_retval);
NS_IMETHOD_(bool) InsertElementsAt(nsISupportsArray *aOther, uint32_t aIndex);
NS_IMETHOD_(bool) RemoveElementsAt(uint32_t aIndex, uint32_t aCount);
NS_IMETHOD_(bool) SizeTo(int32_t aSize);
protected:
void DeleteArray(void);
NS_IMETHOD_(void) GrowArrayBy(int32_t aGrowBy);
nsISupports** mArray;
uint32_t mArraySize;
uint32_t mCount;
nsISupports* mAutoArray[kAutoArraySize];
#if DEBUG_SUPPORTSARRAY
uint32_t mMaxCount;
uint32_t mMaxSize;
#endif
private:
// Copy constructors are not allowed
nsSupportsArray(const nsISupportsArray& other);
};
#endif // nsSupportsArray_h__