92 lines
2.4 KiB
C++
92 lines
2.4 KiB
C++
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "nsHtml5Atom.h"
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#include "nsAutoPtr.h"
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#include "mozilla/Unused.h"
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nsHtml5Atom::nsHtml5Atom(const nsAString& aString)
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{
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mLength = aString.Length();
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mIsStatic = false;
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RefPtr<nsStringBuffer> buf = nsStringBuffer::FromString(aString);
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if (buf) {
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mString = static_cast<char16_t*>(buf->Data());
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} else {
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const size_t size = (mLength + 1) * sizeof(char16_t);
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buf = nsStringBuffer::Alloc(size);
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if (MOZ_UNLIKELY(!buf)) {
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// We OOM because atom allocations should be small and it's hard to
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// handle them more gracefully in a constructor.
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NS_ABORT_OOM(size);
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}
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mString = static_cast<char16_t*>(buf->Data());
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CopyUnicodeTo(aString, 0, mString, mLength);
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mString[mLength] = char16_t(0);
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}
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NS_ASSERTION(mString[mLength] == char16_t(0), "null terminated");
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NS_ASSERTION(buf && buf->StorageSize() >= (mLength+1) * sizeof(char16_t),
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"enough storage");
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NS_ASSERTION(Equals(aString), "correct data");
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// Take ownership of buffer
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mozilla::Unused << buf.forget();
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}
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nsHtml5Atom::~nsHtml5Atom()
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{
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nsStringBuffer::FromData(mString)->Release();
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}
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NS_IMETHODIMP_(MozExternalRefCountType)
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nsHtml5Atom::AddRef()
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{
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NS_NOTREACHED("Attempt to AddRef an nsHtml5Atom.");
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return 2;
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}
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NS_IMETHODIMP_(MozExternalRefCountType)
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nsHtml5Atom::Release()
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{
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NS_NOTREACHED("Attempt to Release an nsHtml5Atom.");
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return 1;
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}
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NS_IMETHODIMP
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nsHtml5Atom::QueryInterface(REFNSIID aIID, void** aInstancePtr)
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{
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NS_NOTREACHED("Attempt to call QueryInterface an nsHtml5Atom.");
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return NS_ERROR_UNEXPECTED;
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}
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NS_IMETHODIMP
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nsHtml5Atom::ScriptableToString(nsAString& aBuf)
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{
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NS_NOTREACHED("Should not call ScriptableToString.");
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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NS_IMETHODIMP
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nsHtml5Atom::ToUTF8String(nsACString& aReturn)
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{
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NS_NOTREACHED("Should not attempt to convert to an UTF-8 string.");
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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NS_IMETHODIMP
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nsHtml5Atom::ScriptableEquals(const nsAString& aString, bool* aResult)
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{
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NS_NOTREACHED("Should not call ScriptableEquals.");
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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NS_IMETHODIMP_(size_t)
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nsHtml5Atom::SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf)
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{
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NS_NOTREACHED("Should not call SizeOfIncludingThis.");
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return 0;
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}
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