2 files changed, 21 insertions, 19 deletions

diff --git a/js/src/vm/RegExpObject.cpp b/js/src/vm/RegExpObject.cpp
index 1ea67d0bd8..ef97ed8165 100644
--- a/js/src/vm/RegExpObject.cpp
+++ b/js/src/vm/RegExpObject.cpp
@@ -129,10 +129,10 @@ RegExpSharedReadBarrier(JSContext* cx, RegExpShared* shared)
         shared->unmarkGray();
 }
 
-bool
-RegExpObject::getShared(JSContext* cx, RegExpGuard* g)
+/* static */ bool
+RegExpObject::getShared(JSContext* cx, Handle<RegExpObject*> regexp, RegExpGuard* g)
 {
-    if (RegExpShared* shared = maybeShared()) {
+    if (RegExpShared* shared = regexp->maybeShared()) {
         // Fetching a RegExpShared from an object requires a read
         // barrier, as the shared pointer might be weak.
         RegExpSharedReadBarrier(cx, shared);
@@ -141,7 +141,7 @@ RegExpObject::getShared(JSContext* cx, RegExpGuard* g)
         return true;
     }
 
-    return createShared(cx, g);
+    return createShared(cx, regexp, g);
 }
 
 /* static */ bool
@@ -279,16 +279,14 @@ RegExpObject::create(ExclusiveContext* cx, HandleAtom source, RegExpFlag flags,
     return regexp;
 }
 
-bool
-RegExpObject::createShared(JSContext* cx, RegExpGuard* g)
+/* static */ bool
+RegExpObject::createShared(JSContext* cx, Handle<RegExpObject*> regexp, RegExpGuard* g)
 {
-    Rooted<RegExpObject*> self(cx, this);
-
-    MOZ_ASSERT(!maybeShared());
-    if (!cx->compartment()->regExps.get(cx, getSource(), getFlags(), g))
+    MOZ_ASSERT(!regexp->maybeShared());
+    if (!cx->compartment()->regExps.get(cx, regexp->getSource(), regexp->getFlags(), g))
         return false;
 
-    self->setShared(**g);
+    regexp->setShared(**g);
     return true;
 }
 
@@ -892,11 +890,12 @@ RegExpShared::dumpBytecode(JSContext* cx, bool match_only, HandleLinearString in
     return true;
 }
 
-bool
-RegExpObject::dumpBytecode(JSContext* cx, bool match_only, HandleLinearString input)
+/* static */ bool
+RegExpObject::dumpBytecode(JSContext* cx, Handle<RegExpObject*> regexp,
+                           bool match_only, HandleLinearString input)
 {
     RegExpGuard g(cx);
-    if (!getShared(cx, &g))
+    if (!getShared(cx, regexp, &g))
         return false;
 
     return g.re()->dumpBytecode(cx, match_only, input);
@@ -1431,7 +1430,7 @@ js::CloneRegExpObject(JSContext* cx, JSObject* obj_)
     Rooted<JSAtom*> source(cx, regex->getSource());
 
     RegExpGuard g(cx);
-    if (!regex->getShared(cx, &g))
+    if (!RegExpObject::getShared(cx, regex, &g))
         return nullptr;
 
     clone->initAndZeroLastIndex(source, g->getFlags(), cx);
diff --git a/js/src/vm/RegExpObject.h b/js/src/vm/RegExpObject.h
index dc428a9735..f1ea101ed5 100644
--- a/js/src/vm/RegExpObject.h
+++ b/js/src/vm/RegExpObject.h
@@ -483,7 +483,8 @@ class RegExpObject : public NativeObject
 
     static bool isOriginalFlagGetter(JSNative native, RegExpFlag* mask);
 
-    bool getShared(JSContext* cx, RegExpGuard* g);
+    static MOZ_MUST_USE bool getShared(JSContext* cx, Handle<RegExpObject*> regexp,
+                                       RegExpGuard* g);
 
     void setShared(RegExpShared& shared) {
         MOZ_ASSERT(!maybeShared());
@@ -500,7 +501,8 @@ class RegExpObject : public NativeObject
     void initAndZeroLastIndex(HandleAtom source, RegExpFlag flags, ExclusiveContext* cx);
 
 #ifdef DEBUG
-    bool dumpBytecode(JSContext* cx, bool match_only, HandleLinearString input);
+    static MOZ_MUST_USE bool dumpBytecode(JSContext* cx, Handle<RegExpObject*> regexp,
+                                          bool match_only, HandleLinearString input);
 #endif
 
   private:
@@ -508,7 +510,8 @@ class RegExpObject : public NativeObject
      * Precondition: the syntax for |source| has already been validated.
      * Side effect: sets the private field.
      */
-    bool createShared(JSContext* cx, RegExpGuard* g);
+    static MOZ_MUST_USE bool createShared(JSContext* cx, Handle<RegExpObject*> regexp,
+                                          RegExpGuard* g);
     RegExpShared* maybeShared() const {
         return static_cast<RegExpShared*>(NativeObject::getPrivate(PRIVATE_SLOT));
     }
@@ -531,7 +534,7 @@ inline bool
 RegExpToShared(JSContext* cx, HandleObject obj, RegExpGuard* g)
 {
     if (obj->is<RegExpObject>())
-        return obj->as<RegExpObject>().getShared(cx, g);
+        return RegExpObject::getShared(cx, obj.as<RegExpObject>(), g);
 
     return Proxy::regexp_toShared(cx, obj, g);
 }