зеркало из https://github.com/mozilla/pjs.git
164 строки
3.2 KiB
C++
164 строки
3.2 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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#include "nsDebug.h"
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#include "nsIAllocator.h"
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#include "nsXPIDLString.h"
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#include "plstr.h"
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// If the allocator changes, fix it here.
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#define XPIDL_STRING_ALLOC(__len) ((PRUnichar*) nsAllocator::Alloc((__len) * sizeof(PRUnichar)))
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#define XPIDL_CSTRING_ALLOC(__len) ((char*) nsAllocator::Alloc((__len) * sizeof(char)))
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#define XPIDL_FREE(__ptr) (nsAllocator::Free(__ptr))
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////////////////////////////////////////////////////////////////////////
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// nsXPIDLString
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nsXPIDLString::nsXPIDLString()
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: mBufOwner(PR_FALSE),
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mBuf(0)
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{
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}
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nsXPIDLString::~nsXPIDLString()
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{
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if (mBufOwner && mBuf)
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XPIDL_FREE(mBuf);
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}
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nsXPIDLString::operator const PRUnichar*()
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{
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return mBuf;
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}
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PRUnichar*
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nsXPIDLString::Copy(const PRUnichar* aString)
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{
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NS_ASSERTION(aString, "null ptr");
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if (! aString)
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return 0;
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PRInt32 len = 0;
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{
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const PRUnichar* p = aString;
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while (*p++)
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len++;
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}
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PRUnichar* result = XPIDL_STRING_ALLOC(len + 1);
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if (result) {
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PRUnichar* q = result;
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while (*aString) {
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*q = *aString;
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q++;
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aString++;
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}
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*q = '\0';
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}
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return result;
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}
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PRUnichar**
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nsXPIDLString::StartAssignmentByValue()
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{
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if (mBufOwner && mBuf)
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XPIDL_FREE(mBuf);
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mBufOwner = PR_TRUE;
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return &mBuf;
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}
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const PRUnichar**
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nsXPIDLString::StartAssignmentByReference()
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{
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if (mBufOwner && mBuf)
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XPIDL_FREE(mBuf);
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mBufOwner = PR_FALSE;
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return (const PRUnichar**) &mBuf;
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}
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////////////////////////////////////////////////////////////////////////
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// nsXPIDLCString
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nsXPIDLCString::nsXPIDLCString()
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: mBufOwner(PR_FALSE),
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mBuf(0)
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{
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}
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nsXPIDLCString::~nsXPIDLCString()
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{
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if (mBufOwner && mBuf)
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XPIDL_FREE(mBuf);
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}
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nsXPIDLCString::operator const char*()
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{
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return mBuf;
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}
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char*
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nsXPIDLCString::Copy(const char* aCString)
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{
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NS_ASSERTION(aCString, "null ptr");
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if (! aCString)
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return 0;
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PRInt32 len = PL_strlen(aCString);
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char* result = XPIDL_CSTRING_ALLOC(len + 1);
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if (result)
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PL_strcpy(result, aCString);
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return result;
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}
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char**
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nsXPIDLCString::StartAssignmentByValue()
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{
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if (mBufOwner && mBuf)
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XPIDL_FREE(mBuf);
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mBufOwner = PR_TRUE;
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return &mBuf;
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}
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const char**
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nsXPIDLCString::StartAssignmentByReference()
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{
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if (mBufOwner && mBuf)
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XPIDL_FREE(mBuf);
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mBufOwner = PR_FALSE;
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return (const char**) &mBuf;
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}
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