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-rw-r--r--js/src/gc/Nursery.cpp1
-rw-r--r--js/src/gc/Nursery.h1
2 files changed, 2 insertions, 0 deletions
diff --git a/js/src/gc/Nursery.cpp b/js/src/gc/Nursery.cpp
index ea4350fb8..93a0eb6a8 100644
--- a/js/src/gc/Nursery.cpp
+++ b/js/src/gc/Nursery.cpp
@@ -210,6 +210,7 @@ js::Nursery::disable()
return;
updateNumChunks(0);
currentEnd_ = 0;
+ position_ = 0;
runtime()->gc.storeBuffer.disable();
}
diff --git a/js/src/gc/Nursery.h b/js/src/gc/Nursery.h
index 0d215d997..a839a4979 100644
--- a/js/src/gc/Nursery.h
+++ b/js/src/gc/Nursery.h
@@ -245,6 +245,7 @@ class Nursery
// Free space remaining, not counting chunk trailers.
MOZ_ALWAYS_INLINE size_t freeSpace() const {
+ MOZ_ASSERT(isEnabled());
MOZ_ASSERT(currentEnd_ - position_ <= NurseryChunkUsableSize);
return (currentEnd_ - position_) +
(numChunks() - currentChunk_ - 1) * NurseryChunkUsableSize;