C++ (Cpp) StackTypeSet::getKnownClass Examples

Example #1

File: TypeOracle.cpp Project: multi-sim/releases-mozilla-central

bool
TypeInferenceOracle::elementReadIsDenseNative(RawScript script, jsbytecode *pc)
{
    // Check whether the object is a dense array and index is int32 or double.
    StackTypeSet *obj = script->analysis()->poppedTypes(pc, 1);
    StackTypeSet *id = script->analysis()->poppedTypes(pc, 0);

    JSValueType idType = id->getKnownTypeTag();
    if (idType != JSVAL_TYPE_INT32 && idType != JSVAL_TYPE_DOUBLE)
        return false;

    Class *clasp = obj->getKnownClass();
    return clasp && clasp->isNative();
}

Example #2

File: TypeOracle.cpp Project: mvarie/Spidermonkey

bool
TypeInferenceOracle::inObjectIsDenseNativeWithoutExtraIndexedProperties(HandleScript script, jsbytecode *pc)
{
    // Check whether the object is a native and index is int32 or double.
    StackTypeSet *id = script->analysis()->poppedTypes(pc, 1);
    StackTypeSet *obj = script->analysis()->poppedTypes(pc, 0);

    JSValueType idType = id->getKnownTypeTag();
    if (idType != JSVAL_TYPE_INT32 && idType != JSVAL_TYPE_DOUBLE)
        return false;

    Class *clasp = obj->getKnownClass();
    if (!clasp || !clasp->isNative())
        return false;

    return !types::TypeCanHaveExtraIndexedProperties(cx, obj);
}

Example #3

File: TypeOracle.cpp Project: multi-sim/releases-mozilla-central

bool
TypeInferenceOracle::elementWriteIsDenseNative(HandleScript script, jsbytecode *pc)
{
    // Check whether the object is a dense array and index is int32 or double.
    StackTypeSet *obj = script->analysis()->poppedTypes(pc, 2);
    StackTypeSet *id = script->analysis()->poppedTypes(pc, 1);

    JSValueType idType = id->getKnownTypeTag();
    if (idType != JSVAL_TYPE_INT32 && idType != JSVAL_TYPE_DOUBLE)
        return false;

    Class *clasp = obj->getKnownClass();
    if (!clasp || !clasp->isNative())
        return false;

    return obj->convertDoubleElements(cx) != StackTypeSet::AmbiguousDoubleConversion;
}