1 files changed, 9 insertions, 9 deletions

diff --git a/js/src/gc/Marking.h b/js/src/gc/Marking.h
index 414079f799..8d5f353a54 100644
--- a/js/src/gc/Marking.h
+++ b/js/src/gc/Marking.h
@@ -86,13 +86,13 @@ class MarkStack
         end_ = stack + capacity;
     }
 
-    MOZ_MUST_USE bool init(JSGCMode gcMode);
+    [[nodiscard]] bool init(JSGCMode gcMode);
 
     void setBaseCapacity(JSGCMode mode);
     size_t maxCapacity() const { return maxCapacity_; }
     void setMaxCapacity(size_t maxCapacity);
 
-    MOZ_MUST_USE bool push(uintptr_t item) {
+    [[nodiscard]] bool push(uintptr_t item) {
         if (tos_ == end_) {
             if (!enlarge(1))
                 return false;
@@ -102,7 +102,7 @@ class MarkStack
         return true;
     }
 
-    MOZ_MUST_USE bool push(uintptr_t item1, uintptr_t item2, uintptr_t item3) {
+    [[nodiscard]] bool push(uintptr_t item1, uintptr_t item2, uintptr_t item3) {
         uintptr_t* nextTos = tos_ + 3;
         if (nextTos > end_) {
             if (!enlarge(3))
@@ -129,7 +129,7 @@ class MarkStack
     void reset();
 
     /* Grow the stack, ensuring there is space for at least count elements. */
-    MOZ_MUST_USE bool enlarge(unsigned count);
+    [[nodiscard]] bool enlarge(unsigned count);
 
     void setGCMode(JSGCMode gcMode);
 
@@ -169,7 +169,7 @@ class GCMarker : public JSTracer
 {
   public:
     explicit GCMarker(JSRuntime* rt);
-    MOZ_MUST_USE bool init(JSGCMode gcMode);
+    [[nodiscard]] bool init(JSGCMode gcMode);
 
     void setMaxCapacity(size_t maxCap) { stack.setMaxCapacity(maxCap); }
     size_t maxCapacity() const { return stack.maxCapacity(); }
@@ -217,7 +217,7 @@ class GCMarker : public JSTracer
     void delayMarkingArena(gc::Arena* arena);
     void delayMarkingChildren(const void* thing);
     void markDelayedChildren(gc::Arena* arena);
-    MOZ_MUST_USE bool markDelayedChildren(SliceBudget& budget);
+    [[nodiscard]] bool markDelayedChildren(SliceBudget& budget);
     bool hasDelayedChildren() const {
         return !!unmarkedArenaStackTop;
     }
@@ -226,7 +226,7 @@ class GCMarker : public JSTracer
         return isMarkStackEmpty() && !unmarkedArenaStackTop;
     }
 
-    MOZ_MUST_USE bool drainMarkStack(SliceBudget& budget);
+    [[nodiscard]] bool drainMarkStack(SliceBudget& budget);
 
     void setGCMode(JSGCMode mode) { stack.setGCMode(mode); }
 
@@ -291,7 +291,7 @@ class GCMarker : public JSTracer
     // Mark the given GC thing, but do not trace its children. Return true
     // if the thing became marked.
     template <typename T>
-    MOZ_MUST_USE bool mark(T* thing);
+    [[nodiscard]] bool mark(T* thing);
 
     void pushTaggedPtr(StackTag tag, void* ptr) {
         checkZone(ptr);
@@ -321,7 +321,7 @@ class GCMarker : public JSTracer
         return stack.isEmpty();
     }
 
-    MOZ_MUST_USE bool restoreValueArray(JSObject* obj, void** vpp, void** endp);
+    [[nodiscard]] bool restoreValueArray(JSObject* obj, void** vpp, void** endp);
     void saveValueRanges();
     inline void processMarkStackTop(SliceBudget& budget);