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Bug 1142775 - Rename NativeSet -> NativeSetExistingDataProperty and simplify it since it is only called for data properties. Delete Shape::set. Add comments. No change in behavior. r=efaust.

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This commit is contained in:
Jason Orendorff 2015-02-28 14:40:07 -06:00
parent 1f80a1db53
commit 98194bf6a0
2 changed files with 28 additions and 53 deletions
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57
js/src/vm/NativeObject.cpp
View File

@ -1077,8 +1077,8 @@ UpdateShapeTypeAndValue(ExclusiveContext *cx, NativeObject *obj, Shape *shape, c
}
static bool
NativeSet(JSContext *cx, HandleNativeObject obj, HandleObject receiver,
HandleShape shape, MutableHandleValue vp, ObjectOpResult &result);
NativeSetExistingDataProperty(JSContext *cx, HandleNativeObject obj, HandleObject receiver,
HandleShape shape, MutableHandleValue vp, ObjectOpResult &result);
static inline bool
DefinePropertyOrElement(ExclusiveContext *cx, HandleNativeObject obj, HandleId id,
@ -1167,10 +1167,12 @@ DefinePropertyOrElement(ExclusiveContext *cx, HandleNativeObject obj, HandleId i
return false;
if (callSetterAfterwards && setter) {
MOZ_ASSERT(!(attrs & JSPROP_GETTER));
MOZ_ASSERT(!(attrs & JSPROP_SETTER));
if (!cx->shouldBeJSContext())
return false;
RootedValue nvalue(cx, value);
return NativeSet(cx->asJSContext(), obj, obj, shape, &nvalue, result);
return NativeSetExistingDataProperty(cx->asJSContext(), obj, obj, shape, &nvalue, result);
}
return result.succeed();
@ -1602,6 +1604,7 @@ js::NativeHasProperty(JSContext *cx, HandleNativeObject obj, HandleId id, bool *
}
}
/*** [[Get]] *************************************************************************************/
static inline bool
@ -1927,6 +1930,7 @@ js::GetPropertyForNameLookup(JSContext *cx, HandleObject obj, HandleId id, Mutab
return NativeGetPropertyInline<CanGC>(cx, obj.as<NativeObject>(), obj, id, NameLookup, vp);
}
/*** [[Set]] *************************************************************************************/
static bool
@ -2098,18 +2102,20 @@ SetDenseOrTypedArrayElement(JSContext *cx, HandleNativeObject obj, uint32_t inde
}
/*
* Finish assignment to a shapeful property of a native object obj. This
* Finish assignment to a shapeful data property of a native object obj. This
* conforms to no standard and there is a lot of legacy baggage here.
*/
static bool
NativeSet(JSContext *cx, HandleNativeObject obj, HandleObject receiver,
HandleShape shape, MutableHandleValue vp, ObjectOpResult &result)
NativeSetExistingDataProperty(JSContext *cx, HandleNativeObject obj, HandleObject receiver,
HandleShape shape, MutableHandleValue vp, ObjectOpResult &result)
{
MOZ_ASSERT(obj->isNative());
MOZ_ASSERT(shape->isDataDescriptor());
if (shape->hasDefaultSetter()) {
if (shape->hasSlot()) {
// The common path. Standard data property.
if (shape->hasSlot()) {
/* If shape has a stub setter, just store vp. */
if (shape->hasDefaultSetter()) {
// Global properties declared with 'var' will be initially
// defined with an undefined value, so don't treat the initial
// assignments to such properties as overwrites.
@ -2117,29 +2123,22 @@ NativeSet(JSContext *cx, HandleNativeObject obj, HandleObject receiver,
obj->setSlotWithType(cx, shape, vp, overwriting);
return result.succeed();
}
// Bizarre: shared (slotless) property that's writable but has no
// JSSetterOp. JS code can't define such a property, but it can be done
// through the JSAPI. Treat it as non-writable.
return result.fail(JSMSG_GETTER_ONLY);
}
if (!shape->hasSlot()) {
/*
* Allow API consumers to create shared properties with stub setters.
* Such properties effectively function as data descriptors which are
* not writable, so attempting to set such a property should do nothing
* or throw if we're in strict mode.
*/
if (!shape->hasGetterValue() && shape->hasDefaultSetter())
return result.fail(JSMSG_GETTER_ONLY);
}
RootedValue ovp(cx, vp);
MOZ_ASSERT(!obj->is<DynamicWithObject>()); // See bug 1128681.
uint32_t sample = cx->runtime()->propertyRemovals;
if (!shape->set(cx, obj, receiver, vp, result))
RootedId id(cx, shape->propid());
if (!CallJSSetterOp(cx, shape->setterOp(), obj, id, vp, result))
return false;
/*
* Update any slot for the shape with the value produced by the setter,
* unless the setter deleted the shape.
*/
// Update any slot for the shape with the value produced by the setter,
// unless the setter deleted the shape.
if (shape->hasSlot() &&
(MOZ_LIKELY(cx->runtime()->propertyRemovals == sample) ||
obj->contains(cx, shape)))
@ -2147,7 +2146,7 @@ NativeSet(JSContext *cx, HandleNativeObject obj, HandleObject receiver,
obj->setSlot(shape->slot(), vp);
}
return true; // result is populated by shape->set() above.
return true; // result is populated by CallJSSetterOp above.
}
/*
@ -2193,7 +2192,7 @@ SetExistingProperty(JSContext *cx, HandleNativeObject obj, HandleObject receiver
Rooted<ArrayObject*> arr(cx, &pobj->as<ArrayObject>());
return ArraySetLength(cx, arr, id, shape->attributes(), vp, result);
}
return NativeSet(cx, obj, receiver, shape, vp, result);
return NativeSetExistingDataProperty(cx, obj, receiver, shape, vp, result);
}
// SpiderMonkey special case: assigning to an inherited slotless
@ -2209,7 +2208,7 @@ SetExistingProperty(JSContext *cx, HandleNativeObject obj, HandleObject receiver
if (shape->hasDefaultSetter())
return result.succeed();
return shape->set(cx, obj, receiver, vp, result);
return CallJSSetterOp(cx, shape->setterOp(), obj, id, vp, result);
}
// Shadow pobj[id] by defining a new data property receiver[id].

24
js/src/vm/Shape-inl.h
View File

@ -37,30 +37,6 @@ Shape::search(ExclusiveContext *cx, jsid id)
return search(cx, this, id, &_);
}
inline bool
Shape::set(JSContext* cx, HandleNativeObject obj, HandleObject receiver, MutableHandleValue vp,
ObjectOpResult &result)
{
MOZ_ASSERT_IF(hasDefaultSetter(), hasGetterValue());
MOZ_ASSERT(!obj->is<DynamicWithObject>()); // See bug 1128681.
if (attrs & JSPROP_SETTER) {
Value fval = setterValue();
if (!InvokeGetterOrSetter(cx, receiver, fval, 1, vp.address(), vp))
return false;
return result.succeed();
}
if (attrs & JSPROP_GETTER)
return result.fail(JSMSG_GETTER_ONLY);
if (!setterOp())
return result.succeed();
RootedId id(cx, propid());
return CallJSSetterOp(cx, setterOp(), obj, id, vp, result);
}
/* static */ inline Shape *
Shape::search(ExclusiveContext *cx, Shape *start, jsid id, ShapeTable::Entry **pentry, bool adding)
{