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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /parser/html/nsHtml5OwningUTF16Buffer.cpp | |
parent | Initial commit. (diff) | |
download | firefox-esr-upstream.tar.xz firefox-esr-upstream.zip |
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'parser/html/nsHtml5OwningUTF16Buffer.cpp')
-rw-r--r-- | parser/html/nsHtml5OwningUTF16Buffer.cpp | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/parser/html/nsHtml5OwningUTF16Buffer.cpp b/parser/html/nsHtml5OwningUTF16Buffer.cpp new file mode 100644 index 0000000000..eec07a29ac --- /dev/null +++ b/parser/html/nsHtml5OwningUTF16Buffer.cpp @@ -0,0 +1,57 @@ +/* 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/. */ + +#include "nsHtml5OwningUTF16Buffer.h" + +#include "mozilla/Span.h" + +using namespace mozilla; + +nsHtml5OwningUTF16Buffer::nsHtml5OwningUTF16Buffer(char16_t* aBuffer) + : nsHtml5UTF16Buffer(aBuffer, 0), next(nullptr), key(nullptr) {} + +nsHtml5OwningUTF16Buffer::nsHtml5OwningUTF16Buffer(void* aKey) + : nsHtml5UTF16Buffer(nullptr, 0), next(nullptr), key(aKey) {} + +nsHtml5OwningUTF16Buffer::~nsHtml5OwningUTF16Buffer() { + DeleteBuffer(); + + // This is to avoid dtor recursion on 'next', bug 706932. + RefPtr<nsHtml5OwningUTF16Buffer> tail; + tail.swap(next); + while (tail && tail->mRefCnt == 1) { + RefPtr<nsHtml5OwningUTF16Buffer> tmp; + tmp.swap(tail->next); + tail.swap(tmp); + } +} + +// static +already_AddRefed<nsHtml5OwningUTF16Buffer> +nsHtml5OwningUTF16Buffer::FalliblyCreate(int32_t aLength) { + char16_t* newBuf = new (mozilla::fallible) char16_t[aLength]; + if (!newBuf) { + return nullptr; + } + RefPtr<nsHtml5OwningUTF16Buffer> newObj = + new (mozilla::fallible) nsHtml5OwningUTF16Buffer(newBuf); + if (!newObj) { + delete[] newBuf; + return nullptr; + } + return newObj.forget(); +} + +void nsHtml5OwningUTF16Buffer::Swap(nsHtml5OwningUTF16Buffer* aOther) { + nsHtml5UTF16Buffer::Swap(aOther); +} + +Span<char16_t> nsHtml5OwningUTF16Buffer::TailAsSpan(int32_t aBufferSize) { + MOZ_ASSERT(aBufferSize >= getEnd()); + return {getBuffer() + getEnd(), static_cast<size_t>(aBufferSize - getEnd())}; +} + +void nsHtml5OwningUTF16Buffer::AdvanceEnd(int32_t aNumberOfCodeUnits) { + setEnd(getEnd() + aNumberOfCodeUnits); +} |