1 files changed, 52 insertions, 0 deletions
diff --git a/parser/html/nsHtml5TreeOpStage.cpp b/parser/html/nsHtml5TreeOpStage.cpp
new file mode 100644
index 0000000000..6f7cb5f608
--- /dev/null
+++ b/parser/html/nsHtml5TreeOpStage.cpp
@@ -0,0 +1,52 @@
+/* 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 "nsHtml5TreeOpStage.h"
+
+using namespace mozilla;
+
+nsHtml5TreeOpStage::nsHtml5TreeOpStage() : mMutex("nsHtml5TreeOpStage mutex") {}
+
+nsHtml5TreeOpStage::~nsHtml5TreeOpStage() {}
+
+bool nsHtml5TreeOpStage::MoveOpsFrom(nsTArray<nsHtml5TreeOperation>& aOpQueue) {
+  mozilla::MutexAutoLock autoLock(mMutex);
+  return !!mOpQueue.AppendElements(std::move(aOpQueue), mozilla::fallible_t());
+}
+
+[[nodiscard]] bool nsHtml5TreeOpStage::MoveOpsAndSpeculativeLoadsTo(
+    nsTArray<nsHtml5TreeOperation>& aOpQueue,
+    nsTArray<nsHtml5SpeculativeLoad>& aSpeculativeLoadQueue) {
+  mozilla::MutexAutoLock autoLock(mMutex);
+  if (!aOpQueue.AppendElements(std::move(mOpQueue), mozilla::fallible_t())) {
+    return false;
+  };
+  aSpeculativeLoadQueue.AppendElements(std::move(mSpeculativeLoadQueue));
+  return true;
+}
+
+[[nodiscard]] bool nsHtml5TreeOpStage::MoveOpsTo(
+    nsTArray<nsHtml5TreeOperation>& aOpQueue) {
+  mozilla::MutexAutoLock autoLock(mMutex);
+  return !!aOpQueue.AppendElements(std::move(mOpQueue), mozilla::fallible_t());
+}
+
+void nsHtml5TreeOpStage::MoveSpeculativeLoadsFrom(
+    nsTArray<nsHtml5SpeculativeLoad>& aSpeculativeLoadQueue) {
+  mozilla::MutexAutoLock autoLock(mMutex);
+  mSpeculativeLoadQueue.AppendElements(std::move(aSpeculativeLoadQueue));
+}
+
+void nsHtml5TreeOpStage::MoveSpeculativeLoadsTo(
+    nsTArray<nsHtml5SpeculativeLoad>& aSpeculativeLoadQueue) {
+  mozilla::MutexAutoLock autoLock(mMutex);
+  aSpeculativeLoadQueue.AppendElements(std::move(mSpeculativeLoadQueue));
+}
+
+#ifdef DEBUG
+void nsHtml5TreeOpStage::AssertEmpty() {
+  mozilla::MutexAutoLock autoLock(mMutex);
+  MOZ_ASSERT(mOpQueue.IsEmpty(), "The stage was supposed to be empty.");
+}
+#endif