1 files changed, 21 insertions, 21 deletions

diff --git a/js/src/frontend/EmitterScope.h b/js/src/frontend/EmitterScope.h
index c7dfd1d559..9498cc1b38 100644
--- a/js/src/frontend/EmitterScope.h
+++ b/js/src/frontend/EmitterScope.h
@@ -56,16 +56,16 @@ class EmitterScope : public Nestable<EmitterScope>
     // block scope note list. Otherwise ScopeNote::NoScopeNote.
     uint32_t noteIndex_;
 
-    MOZ_MUST_USE bool ensureCache(BytecodeEmitter* bce);
+    [[nodiscard]] bool ensureCache(BytecodeEmitter* bce);
 
     template <typename BindingIter>
-    MOZ_MUST_USE bool checkSlotLimits(BytecodeEmitter* bce, const BindingIter& bi);
+    [[nodiscard]] bool checkSlotLimits(BytecodeEmitter* bce, const BindingIter& bi);
 
-    MOZ_MUST_USE bool checkEnvironmentChainLength(BytecodeEmitter* bce);
+    [[nodiscard]] bool checkEnvironmentChainLength(BytecodeEmitter* bce);
 
     void updateFrameFixedSlots(BytecodeEmitter* bce, const BindingIter& bi);
 
-    MOZ_MUST_USE bool putNameInCache(BytecodeEmitter* bce, JSAtom* name, NameLocation loc);
+    [[nodiscard]] bool putNameInCache(BytecodeEmitter* bce, JSAtom* name, NameLocation loc);
 
     mozilla::Maybe<NameLocation> lookupInCache(BytecodeEmitter* bce, JSAtom* name);
 
@@ -79,12 +79,12 @@ class EmitterScope : public Nestable<EmitterScope>
     NameLocation searchAndCache(BytecodeEmitter* bce, JSAtom* name);
 
     template <typename ScopeCreator>
-    MOZ_MUST_USE bool internScope(BytecodeEmitter* bce, ScopeCreator createScope);
+    [[nodiscard]] bool internScope(BytecodeEmitter* bce, ScopeCreator createScope);
     template <typename ScopeCreator>
-    MOZ_MUST_USE bool internBodyScope(BytecodeEmitter* bce, ScopeCreator createScope);
-    MOZ_MUST_USE bool appendScopeNote(BytecodeEmitter* bce);
+    [[nodiscard]] bool internBodyScope(BytecodeEmitter* bce, ScopeCreator createScope);
+    [[nodiscard]] bool appendScopeNote(BytecodeEmitter* bce);
 
-    MOZ_MUST_USE bool deadZoneFrameSlotRange(BytecodeEmitter* bce, uint32_t slotStart,
+    [[nodiscard]] bool deadZoneFrameSlotRange(BytecodeEmitter* bce, uint32_t slotStart,
                                              uint32_t slotEnd) const;
 
   public:
@@ -92,21 +92,21 @@ class EmitterScope : public Nestable<EmitterScope>
 
     void dump(BytecodeEmitter* bce);
 
-    MOZ_MUST_USE bool enterLexical(BytecodeEmitter* bce, ScopeKind kind,
+    [[nodiscard]] bool enterLexical(BytecodeEmitter* bce, ScopeKind kind,
                                    Handle<LexicalScope::Data*> bindings);
-    MOZ_MUST_USE bool enterNamedLambda(BytecodeEmitter* bce, FunctionBox* funbox);
-    MOZ_MUST_USE bool enterComprehensionFor(BytecodeEmitter* bce,
+    [[nodiscard]] bool enterNamedLambda(BytecodeEmitter* bce, FunctionBox* funbox);
+    [[nodiscard]] bool enterComprehensionFor(BytecodeEmitter* bce,
                                             Handle<LexicalScope::Data*> bindings);
-    MOZ_MUST_USE bool enterFunction(BytecodeEmitter* bce, FunctionBox* funbox);
-    MOZ_MUST_USE bool enterFunctionExtraBodyVar(BytecodeEmitter* bce, FunctionBox* funbox);
-    MOZ_MUST_USE bool enterParameterExpressionVar(BytecodeEmitter* bce);
-    MOZ_MUST_USE bool enterGlobal(BytecodeEmitter* bce, GlobalSharedContext* globalsc);
-    MOZ_MUST_USE bool enterEval(BytecodeEmitter* bce, EvalSharedContext* evalsc);
-    MOZ_MUST_USE bool enterModule(BytecodeEmitter* module, ModuleSharedContext* modulesc);
-    MOZ_MUST_USE bool enterWith(BytecodeEmitter* bce);
-    MOZ_MUST_USE bool deadZoneFrameSlots(BytecodeEmitter* bce) const;
-
-    MOZ_MUST_USE bool leave(BytecodeEmitter* bce, bool nonLocal = false);
+    [[nodiscard]] bool enterFunction(BytecodeEmitter* bce, FunctionBox* funbox);
+    [[nodiscard]] bool enterFunctionExtraBodyVar(BytecodeEmitter* bce, FunctionBox* funbox);
+    [[nodiscard]] bool enterParameterExpressionVar(BytecodeEmitter* bce);
+    [[nodiscard]] bool enterGlobal(BytecodeEmitter* bce, GlobalSharedContext* globalsc);
+    [[nodiscard]] bool enterEval(BytecodeEmitter* bce, EvalSharedContext* evalsc);
+    [[nodiscard]] bool enterModule(BytecodeEmitter* module, ModuleSharedContext* modulesc);
+    [[nodiscard]] bool enterWith(BytecodeEmitter* bce);
+    [[nodiscard]] bool deadZoneFrameSlots(BytecodeEmitter* bce) const;
+
+    [[nodiscard]] bool leave(BytecodeEmitter* bce, bool nonLocal = false);
 
     uint32_t index() const {
         MOZ_ASSERT(scopeIndex_ != ScopeNote::NoScopeIndex, "Did you forget to intern a Scope?");