Add m-esr52 at 52.6.0

1 files changed, 75 insertions, 0 deletions

diff --git a/js/src/gc/StoreBuffer-inl.h b/js/src/gc/StoreBuffer-inl.h
new file mode 100644
index 000000000..5887c52a9
--- /dev/null
+++ b/js/src/gc/StoreBuffer-inl.h
@@ -0,0 +1,75 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ * vim: set ts=8 sts=4 et sw=4 tw=99:
+ * 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/. */
+
+#ifndef gc_StoreBuffer_inl_h
+#define gc_StoreBuffer_inl_h
+
+#include "gc/StoreBuffer.h"
+
+#include "gc/Heap.h"
+
+namespace js {
+namespace gc {
+
+inline /* static */ size_t
+ArenaCellSet::getCellIndex(const TenuredCell* cell)
+{
+    MOZ_ASSERT((uintptr_t(cell) & ~ArenaMask) % CellSize == 0);
+    return (uintptr_t(cell) & ArenaMask) / CellSize;
+}
+
+inline /* static */ void
+ArenaCellSet::getWordIndexAndMask(size_t cellIndex, size_t* wordp, uint32_t* maskp)
+{
+    BitArray<ArenaCellCount>::getIndexAndMask(cellIndex, wordp, maskp);
+}
+
+inline bool
+ArenaCellSet::hasCell(size_t cellIndex) const
+{
+    MOZ_ASSERT(cellIndex < ArenaCellCount);
+    return bits.get(cellIndex);
+}
+
+inline void
+ArenaCellSet::putCell(size_t cellIndex)
+{
+    MOZ_ASSERT(cellIndex < ArenaCellCount);
+    bits.set(cellIndex);
+}
+
+inline void
+ArenaCellSet::check() const
+{
+#ifdef DEBUG
+    bool bitsZero = bits.isAllClear();
+    MOZ_ASSERT(isEmpty() == bitsZero);
+    MOZ_ASSERT(isEmpty() == !arena);
+    MOZ_ASSERT_IF(!isEmpty(), arena->bufferedCells == this);
+#endif
+}
+
+inline void
+StoreBuffer::putWholeCell(Cell* cell)
+{
+    MOZ_ASSERT(cell->isTenured());
+
+    Arena* arena = cell->asTenured().arena();
+    ArenaCellSet* cells = arena->bufferedCells;
+    if (cells->isEmpty()) {
+        cells = AllocateWholeCellSet(arena);
+        if (!cells)
+            return;
+    }
+
+    cells->putCell(&cell->asTenured());
+    cells->check();
+}
+
+} // namespace gc
+} // namespace js
+
+#endif // gc_StoreBuffer_inl_h