gecko-dev/xpcom/string/nsTDependentString.cpp

43 строки
1.5 KiB
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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/. */
nsTDependentString_CharT::nsTDependentString_CharT(const char_type* aStart,
const char_type* aEnd)
: string_type(const_cast<char_type*>(aStart), uint32_t(aEnd - aStart),
DataFlags::TERMINATED, ClassFlags(0))
{
MOZ_RELEASE_ASSERT(aStart <= aEnd, "Overflow!");
AssertValidDependentString();
}
void
nsTDependentString_CharT::Rebind(const string_type& str, uint32_t startPos)
{
MOZ_ASSERT(str.GetDataFlags() & DataFlags::TERMINATED, "Unterminated flat string");
// If we currently own a buffer, release it.
Finalize();
size_type strLength = str.Length();
if (startPos > strLength) {
startPos = strLength;
}
char_type* newData =
const_cast<char_type*>(static_cast<const char_type*>(str.Data())) + startPos;
size_type newLen = strLength - startPos;
DataFlags newDataFlags = str.GetDataFlags() & (DataFlags::TERMINATED | DataFlags::LITERAL);
SetData(newData, newLen, newDataFlags);
}
void
nsTDependentString_CharT::Rebind(const char_type* aStart, const char_type* aEnd)
{
MOZ_RELEASE_ASSERT(aStart <= aEnd, "Overflow!");
Rebind(aStart, uint32_t(aEnd - aStart));
}