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-rw-r--r--parser/html/nsHtml5OwningUTF16Buffer.cpp57
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);
+}