зеркало из https://github.com/mozilla/pjs.git
665 строки
14 KiB
C++
665 строки
14 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s):
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*/
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#include "nsVoidArray.h"
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#include "nsCRT.h"
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#include "nsISizeOfHandler.h"
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#include "nsString.h"
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static const PRInt32 kGrowArrayBy = 8;
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const PRInt32 nsVoidArray::kArrayOwnerMask = 1 << 31;
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const PRInt32 nsVoidArray::kArraySizeMask = ~nsVoidArray::kArrayOwnerMask;
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inline PRInt32
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nsVoidArray::GetArraySize() const
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{
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return mInfo & kArraySizeMask;
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}
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inline void
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nsVoidArray::SetArraySize(PRInt32 aSize)
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{
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mInfo &= kArrayOwnerMask; // preserve ownership bit
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mInfo |= (aSize & kArraySizeMask);
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}
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inline PRBool
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nsVoidArray::IsArrayOwner() const
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{
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return (mInfo & kArrayOwnerMask) != 0;
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}
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inline void
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nsVoidArray::SetArrayOwner(PRBool aOwner)
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{
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mInfo &= kArraySizeMask; // preserve array size
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mInfo |= (aOwner ? kArrayOwnerMask : 0);
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}
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nsVoidArray::nsVoidArray()
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: mArray(nsnull),
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mInfo(0),
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mCount(0)
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{
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MOZ_COUNT_CTOR(nsVoidArray);
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SetArrayOwner(PR_TRUE);
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}
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nsVoidArray::nsVoidArray(PRInt32 aCount)
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: mArray(nsnull),
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mInfo(0),
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mCount(0)
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{
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MOZ_COUNT_CTOR(nsVoidArray);
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if ( aCount )
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{
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SetArraySize(aCount);
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mCount = aCount;
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mArray = new void*[GetArraySize()];
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nsCRT::memset(mArray, 0, mCount * sizeof(void*));
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}
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SetArrayOwner(PR_TRUE);
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}
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nsVoidArray& nsVoidArray::operator=(const nsVoidArray& other)
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{
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if (IsArrayOwner()) {
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delete [] mArray;
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}
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PRInt32 otherCount = other.mCount;
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SetArraySize(otherCount);
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mCount = otherCount;
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if (otherCount != 0) {
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mArray = new void*[GetArraySize()];
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nsCRT::memcpy(mArray, other.mArray, otherCount * sizeof(void*));
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SetArrayOwner(PR_TRUE);
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} else {
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mArray = nsnull;
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}
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return *this;
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}
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nsVoidArray::~nsVoidArray()
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{
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MOZ_COUNT_DTOR(nsVoidArray);
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if (IsArrayOwner()) {
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delete [] mArray;
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}
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}
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void
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nsVoidArray::SizeOf(nsISizeOfHandler* aHandler, PRUint32* aResult) const
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{
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if (aResult) {
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*aResult = sizeof(*this) + sizeof(void*) * GetArraySize();
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}
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}
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void* nsVoidArray::ElementAt(PRInt32 aIndex) const
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{
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if (PRUint32(aIndex) >= PRUint32(mCount)) {
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return nsnull;
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}
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return mArray[aIndex];
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}
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PRInt32 nsVoidArray::IndexOf(void* aPossibleElement) const
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{
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void** ap = mArray;
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void** end = ap + mCount;
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while (ap < end) {
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if (*ap == aPossibleElement) {
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return ap - mArray;
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}
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ap++;
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}
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return -1;
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}
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PRBool nsVoidArray::InsertElementAt(void* aElement, PRInt32 aIndex)
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{
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PRInt32 oldCount = mCount;
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if (PRUint32(aIndex) > PRUint32(oldCount)) {
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// An invalid index causes the insertion to fail
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return PR_FALSE;
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}
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if (oldCount >= GetArraySize()) {
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// We have to grow the array
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PRInt32 newCount = oldCount + kGrowArrayBy;
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SetArraySize(newCount);
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void** newArray = new void*[GetArraySize()];
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if (mArray != nsnull && aIndex != 0)
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nsCRT::memcpy(newArray, mArray, aIndex * sizeof(void*));
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PRInt32 slide = oldCount - aIndex;
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if (0 != slide) {
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// Slide data over to make room for the insertion
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nsCRT::memcpy(newArray + aIndex + 1, mArray + aIndex,
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slide * sizeof(void*));
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}
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if (IsArrayOwner())
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delete [] mArray;
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mArray = newArray;
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SetArrayOwner(PR_TRUE);
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} else {
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// The array is already large enough
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PRInt32 slide = oldCount - aIndex;
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if (0 != slide) {
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// Slide data over to make room for the insertion
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nsCRT::memmove(mArray + aIndex + 1, mArray + aIndex,
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slide * sizeof(void*));
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}
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}
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mArray[aIndex] = aElement;
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mCount++;
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return PR_TRUE;
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}
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PRBool nsVoidArray::ReplaceElementAt(void* aElement, PRInt32 aIndex)
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{
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if (PRUint32(aIndex) >= PRUint32(GetArraySize())) {
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PRInt32 requestedCount = aIndex + 1;
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PRInt32 growDelta = requestedCount - mCount;
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PRInt32 newCount = mCount + (growDelta > kGrowArrayBy ? growDelta : kGrowArrayBy);
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SetArraySize(newCount);
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void** newArray = new void*[GetArraySize()];
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if (newArray==nsnull)
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return PR_FALSE;
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nsCRT::memset(newArray, 0, newCount * sizeof(void*));
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if (mArray != nsnull && aIndex != 0) {
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nsCRT::memcpy(newArray, mArray, mCount * sizeof(void*));
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if (IsArrayOwner())
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delete [] mArray;
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}
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mArray = newArray;
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SetArrayOwner(PR_TRUE);
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}
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mArray[aIndex] = aElement;
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if (aIndex >= mCount)
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mCount = aIndex+1;
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return PR_TRUE;
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}
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PRBool nsVoidArray::RemoveElementAt(PRInt32 aIndex)
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{
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PRInt32 oldCount = mCount;
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if (PRUint32(aIndex) >= PRUint32(oldCount)) {
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// An invalid index causes the replace to fail
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return PR_FALSE;
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}
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// We don't need to move any elements if we're removing the
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// last element in the array
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if (aIndex < (oldCount - 1)) {
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nsCRT::memmove(mArray + aIndex, mArray + aIndex + 1,
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(oldCount - 1 - aIndex) * sizeof(void*));
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}
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mCount--;
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return PR_TRUE;
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}
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PRBool nsVoidArray::RemoveElement(void* aElement)
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{
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void** ep = mArray;
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void** end = ep + mCount;
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while (ep < end) {
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void* e = *ep++;
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if (e == aElement) {
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ep--;
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return RemoveElementAt(PRInt32(ep - mArray));
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}
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}
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return PR_FALSE;
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}
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void nsVoidArray::Clear()
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{
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mCount = 0;
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}
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void nsVoidArray::Compact()
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{
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PRInt32 count = mCount;
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if (IsArrayOwner() && (GetArraySize() > count)) {
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SetArraySize(count);
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void** newArray = new void*[GetArraySize()];
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if (nsnull != newArray) {
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nsCRT::memcpy(newArray, mArray, count * sizeof(void*));
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delete [] mArray;
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mArray = newArray;
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}
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}
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}
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PRBool nsVoidArray::EnumerateForwards(nsVoidArrayEnumFunc aFunc, void* aData)
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{
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PRInt32 index = -1;
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PRBool running = PR_TRUE;
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while (running && (++index < mCount)) {
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running = (*aFunc)(mArray[index], aData);
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}
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return running;
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}
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PRBool nsVoidArray::EnumerateBackwards(nsVoidArrayEnumFunc aFunc, void* aData)
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{
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PRInt32 index = mCount;
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PRBool running = PR_TRUE;
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while (running && (0 <= --index)) {
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running = (*aFunc)(mArray[index], aData);
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}
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return running;
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}
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//----------------------------------------------------------------
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// nsAutoVoidArray
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nsAutoVoidArray::nsAutoVoidArray()
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: nsVoidArray()
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{
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mArray = mElements;
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SetArraySize(sizeof(mElements) / sizeof(*mElements));
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SetArrayOwner(PR_FALSE);
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}
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//----------------------------------------------------------------
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// nsStringArray
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nsStringArray::nsStringArray(void)
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: nsVoidArray()
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{
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}
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nsStringArray::~nsStringArray(void)
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{
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Clear();
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}
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nsStringArray&
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nsStringArray::operator=(const nsStringArray& other)
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{
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if (IsArrayOwner()) {
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delete mArray;
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}
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PRInt32 otherCount = other.mCount;
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SetArraySize(otherCount);
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mCount = otherCount;
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if (0 < otherCount) {
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mArray = new void*[GetArraySize()];
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while (0 <= --otherCount) {
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nsString* otherString = (nsString*)(other.mArray[otherCount]);
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mArray[otherCount] = new nsString(*otherString);
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}
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SetArrayOwner(PR_TRUE);
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} else {
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mArray = nsnull;
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}
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return *this;
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}
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void
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nsStringArray::SizeOf(nsISizeOfHandler* aHandler, PRUint32* aResult) const
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{
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PRUint32 sum = 0;
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nsVoidArray::SizeOf(aHandler, &sum);
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PRInt32 index = mCount;
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while (0 <= --index) {
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nsString* string = (nsString*)mArray[index];
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PRUint32 size;
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string->SizeOf(aHandler, &size);
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sum += size;
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}
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}
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void
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nsStringArray::StringAt(PRInt32 aIndex, nsString& aString) const
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{
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nsString* string = (nsString*)nsVoidArray::ElementAt(aIndex);
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if (nsnull != string) {
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aString = *string;
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}
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else {
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aString.Truncate();
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}
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}
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nsString*
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nsStringArray::StringAt(PRInt32 aIndex) const
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{
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return (nsString*)nsVoidArray::ElementAt(aIndex);
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}
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PRInt32
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nsStringArray::IndexOf(const nsString& aPossibleString) const
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{
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void** ap = mArray;
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void** end = ap + mCount;
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while (ap < end) {
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nsString* string = (nsString*)*ap;
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if (string->Equals(aPossibleString)) {
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return ap - mArray;
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}
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ap++;
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}
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return -1;
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}
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PRInt32
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nsStringArray::IndexOfIgnoreCase(const nsString& aPossibleString) const
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{
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void** ap = mArray;
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void** end = ap + mCount;
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while (ap < end) {
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nsString* string = (nsString*)*ap;
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if (string->EqualsIgnoreCase(aPossibleString)) {
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return ap - mArray;
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}
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ap++;
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}
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return -1;
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}
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PRBool
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nsStringArray::InsertStringAt(const nsString& aString, PRInt32 aIndex)
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{
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nsString* string = new nsString(aString);
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if (nsVoidArray::InsertElementAt(string, aIndex)) {
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return PR_TRUE;
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}
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delete string;
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return PR_FALSE;
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}
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PRBool
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nsStringArray::ReplaceStringAt(const nsString& aString, PRInt32 aIndex)
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{
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nsString* string = (nsString*)nsVoidArray::ElementAt(aIndex);
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if (nsnull != string) {
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*string = aString;
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return PR_TRUE;
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}
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return PR_FALSE;
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}
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PRBool
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nsStringArray::RemoveString(const nsString& aString)
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{
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PRInt32 index = IndexOf(aString);
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if (-1 < index) {
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return RemoveStringAt(index);
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}
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return PR_FALSE;
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}
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PRBool
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nsStringArray::RemoveStringIgnoreCase(const nsString& aString)
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{
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PRInt32 index = IndexOfIgnoreCase(aString);
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if (-1 < index) {
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return RemoveStringAt(index);
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}
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return PR_FALSE;
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}
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PRBool nsStringArray::RemoveStringAt(PRInt32 aIndex)
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{
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nsString* string = StringAt(aIndex);
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if (nsnull != string) {
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nsVoidArray::RemoveElementAt(aIndex);
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delete string;
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return PR_TRUE;
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}
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return PR_FALSE;
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}
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void
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nsStringArray::Clear(void)
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{
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PRInt32 index = mCount;
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while (0 <= --index) {
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nsString* string = (nsString*)mArray[index];
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delete string;
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}
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nsVoidArray::Clear();
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}
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PRBool
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nsStringArray::EnumerateForwards(nsStringArrayEnumFunc aFunc, void* aData)
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{
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PRInt32 index = -1;
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PRBool running = PR_TRUE;
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while (running && (++index < mCount)) {
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running = (*aFunc)(*((nsString*)mArray[index]), aData);
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}
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return running;
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}
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PRBool
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nsStringArray::EnumerateBackwards(nsStringArrayEnumFunc aFunc, void* aData)
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{
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PRInt32 index = mCount;
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PRBool running = PR_TRUE;
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while (running && (0 <= --index)) {
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running = (*aFunc)(*((nsString*)mArray[index]), aData);
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}
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return running;
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}
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//----------------------------------------------------------------
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// nsCStringArray
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nsCStringArray::nsCStringArray(void)
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: nsVoidArray()
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{
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}
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nsCStringArray::~nsCStringArray(void)
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{
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Clear();
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}
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nsCStringArray&
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nsCStringArray::operator=(const nsCStringArray& other)
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{
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if (IsArrayOwner()) {
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delete mArray;
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}
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PRInt32 otherCount = other.mCount;
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SetArraySize(otherCount);
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mCount = otherCount;
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if (0 < otherCount) {
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mArray = new void*[GetArraySize()];
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while (0 <= --otherCount) {
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nsCString* otherString = (nsCString*)(other.mArray[otherCount]);
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mArray[otherCount] = new nsCString(*otherString);
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}
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SetArrayOwner(PR_TRUE);
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} else {
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mArray = nsnull;
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}
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return *this;
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}
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void
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nsCStringArray::SizeOf(nsISizeOfHandler* aHandler, PRUint32* aResult) const
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{
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PRUint32 sum = 0;
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nsVoidArray::SizeOf(aHandler, &sum);
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PRInt32 index = mCount;
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while (0 <= --index) {
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nsCString* string = (nsCString*)mArray[index];
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PRUint32 size;
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string->SizeOf(aHandler, &size);
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sum += size;
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}
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}
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void
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nsCStringArray::CStringAt(PRInt32 aIndex, nsCString& aCString) const
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{
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nsCString* string = (nsCString*)nsVoidArray::ElementAt(aIndex);
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if (nsnull != string) {
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aCString = *string;
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}
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else {
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aCString.Truncate();
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}
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}
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nsCString*
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nsCStringArray::CStringAt(PRInt32 aIndex) const
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{
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return (nsCString*)nsVoidArray::ElementAt(aIndex);
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}
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PRInt32
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nsCStringArray::IndexOf(const nsCString& aPossibleString) const
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{
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void** ap = mArray;
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void** end = ap + mCount;
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while (ap < end) {
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nsCString* string = (nsCString*)*ap;
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if (string->Equals(aPossibleString)) {
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return ap - mArray;
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}
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ap++;
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}
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return -1;
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}
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PRInt32
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nsCStringArray::IndexOfIgnoreCase(const nsCString& aPossibleString) const
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{
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void** ap = mArray;
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void** end = ap + mCount;
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while (ap < end) {
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nsCString* string = (nsCString*)*ap;
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if (string->EqualsIgnoreCase(aPossibleString)) {
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return ap - mArray;
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}
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ap++;
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}
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return -1;
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}
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PRBool
|
|
nsCStringArray::InsertCStringAt(const nsCString& aCString, PRInt32 aIndex)
|
|
{
|
|
nsCString* string = new nsCString(aCString);
|
|
if (nsVoidArray::InsertElementAt(string, aIndex)) {
|
|
return PR_TRUE;
|
|
}
|
|
delete string;
|
|
return PR_FALSE;
|
|
}
|
|
|
|
PRBool
|
|
nsCStringArray::ReplaceCStringAt(const nsCString& aCString, PRInt32 aIndex)
|
|
{
|
|
nsCString* string = (nsCString*)nsVoidArray::ElementAt(aIndex);
|
|
if (nsnull != string) {
|
|
*string = aCString;
|
|
return PR_TRUE;
|
|
}
|
|
return PR_FALSE;
|
|
}
|
|
|
|
PRBool
|
|
nsCStringArray::RemoveCString(const nsCString& aCString)
|
|
{
|
|
PRInt32 index = IndexOf(aCString);
|
|
if (-1 < index) {
|
|
return RemoveCStringAt(index);
|
|
}
|
|
return PR_FALSE;
|
|
}
|
|
|
|
PRBool
|
|
nsCStringArray::RemoveCStringIgnoreCase(const nsCString& aCString)
|
|
{
|
|
PRInt32 index = IndexOfIgnoreCase(aCString);
|
|
if (-1 < index) {
|
|
return RemoveCStringAt(index);
|
|
}
|
|
return PR_FALSE;
|
|
}
|
|
|
|
PRBool nsCStringArray::RemoveCStringAt(PRInt32 aIndex)
|
|
{
|
|
nsCString* string = CStringAt(aIndex);
|
|
if (nsnull != string) {
|
|
nsVoidArray::RemoveElementAt(aIndex);
|
|
delete string;
|
|
return PR_TRUE;
|
|
}
|
|
return PR_FALSE;
|
|
}
|
|
|
|
void
|
|
nsCStringArray::Clear(void)
|
|
{
|
|
PRInt32 index = mCount;
|
|
while (0 <= --index) {
|
|
nsCString* string = (nsCString*)mArray[index];
|
|
delete string;
|
|
}
|
|
nsVoidArray::Clear();
|
|
}
|
|
|
|
|
|
|
|
PRBool
|
|
nsCStringArray::EnumerateForwards(nsCStringArrayEnumFunc aFunc, void* aData)
|
|
{
|
|
PRInt32 index = -1;
|
|
PRBool running = PR_TRUE;
|
|
|
|
while (running && (++index < mCount)) {
|
|
running = (*aFunc)(*((nsCString*)mArray[index]), aData);
|
|
}
|
|
return running;
|
|
}
|
|
|
|
PRBool
|
|
nsCStringArray::EnumerateBackwards(nsCStringArrayEnumFunc aFunc, void* aData)
|
|
{
|
|
PRInt32 index = mCount;
|
|
PRBool running = PR_TRUE;
|
|
|
|
while (running && (0 <= --index)) {
|
|
running = (*aFunc)(*((nsCString*)mArray[index]), aData);
|
|
}
|
|
return running;
|
|
}
|