コード例 #1
0
static inline void putByVal(ExecState* exec, JSValue baseValue, uint32_t index, JSValue value)
{
    JSGlobalData* globalData = &exec->globalData();

    if (isJSArray(baseValue)) {
        JSArray* array = asArray(baseValue);
        if (array->canSetIndex(index)) {
            array->setIndex(*globalData, index, value);
            return;
        }

        JSArray::putByIndex(array, exec, index, value, strict);
        return;
    }

    if (isJSByteArray(baseValue) && asByteArray(baseValue)->canAccessIndex(index)) {
        JSByteArray* byteArray = asByteArray(baseValue);
        // FIXME: the JITstub used to relink this to an optimized form!
        if (value.isInt32()) {
            byteArray->setIndex(index, value.asInt32());
            return;
        }

        if (value.isNumber()) {
            byteArray->setIndex(index, value.asNumber());
            return;
        }
    }

    baseValue.putByIndex(exec, index, value, strict);
}
コード例 #2
0
ALWAYS_INLINE static void operationPutByValInternal(ExecState* exec, EncodedJSValue encodedBase, EncodedJSValue encodedProperty, EncodedJSValue encodedValue)
{
    JSGlobalData* globalData = &exec->globalData();

    JSValue baseValue = JSValue::decode(encodedBase);
    JSValue property = JSValue::decode(encodedProperty);
    JSValue value = JSValue::decode(encodedValue);

    if (LIKELY(property.isUInt32())) {
        uint32_t i = property.asUInt32();

        if (isJSArray(globalData, baseValue)) {
            JSArray* jsArray = asArray(baseValue);
            if (jsArray->canSetIndex(i)) {
                jsArray->setIndex(*globalData, i, value);
                return;
            }

            jsArray->JSArray::put(exec, i, value);
            return;
        }

        if (isJSByteArray(globalData, baseValue) && asByteArray(baseValue)->canAccessIndex(i)) {
            JSByteArray* jsByteArray = asByteArray(baseValue);
            // FIXME: the JITstub used to relink this to an optimized form!
            if (value.isInt32()) {
                jsByteArray->setIndex(i, value.asInt32());
                return;
            }

            double dValue = 0;
            if (value.getNumber(dValue)) {
                jsByteArray->setIndex(i, dValue);
                return;
            }
        }

        baseValue.put(exec, i, value);
        return;
    }

    // Don't put to an object if toString throws an exception.
    Identifier ident(exec, property.toString(exec));
    if (!globalData->exception) {
        PutPropertySlot slot(strict);
        baseValue.put(exec, ident, value, slot);
    }
}
コード例 #3
0
static inline EncodedJSValue getByVal(ExecState* exec, JSCell* base, uint32_t index)
{
    // FIXME: the JIT used to handle these in compiled code!
    if (isJSArray(base) && asArray(base)->canGetIndex(index))
        return JSValue::encode(asArray(base)->getIndex(index));

    // FIXME: the JITstub used to relink this to an optimized form!
    if (isJSString(base) && asString(base)->canGetIndex(index))
        return JSValue::encode(asString(base)->getIndex(exec, index));

    // FIXME: the JITstub used to relink this to an optimized form!
    if (isJSByteArray(base) && asByteArray(base)->canAccessIndex(index))
        return JSValue::encode(asByteArray(base)->getIndex(exec, index));

    return JSValue::encode(JSValue(base).get(exec, index));
}
コード例 #4
0
EncodedJSValue operationGetByVal(ExecState* exec, EncodedJSValue encodedBase, EncodedJSValue encodedProperty)
{
    JSValue baseValue = JSValue::decode(encodedBase);
    JSValue property = JSValue::decode(encodedProperty);

    if (LIKELY(baseValue.isCell())) {
        JSCell* base = baseValue.asCell();

        if (property.isUInt32()) {
            JSGlobalData* globalData = &exec->globalData();
            uint32_t i = property.asUInt32();

            // FIXME: the JIT used to handle these in compiled code!
            if (isJSArray(globalData, base) && asArray(base)->canGetIndex(i))
                return JSValue::encode(asArray(base)->getIndex(i));

            // FIXME: the JITstub used to relink this to an optimized form!
            if (isJSString(globalData, base) && asString(base)->canGetIndex(i))
                return JSValue::encode(asString(base)->getIndex(exec, i));

            // FIXME: the JITstub used to relink this to an optimized form!
            if (isJSByteArray(globalData, base) && asByteArray(base)->canAccessIndex(i))
                return JSValue::encode(asByteArray(base)->getIndex(exec, i));

            return JSValue::encode(baseValue.get(exec, i));
        }

        if (property.isString()) {
            Identifier propertyName(exec, asString(property)->value(exec));
            PropertySlot slot(base);
            if (base->fastGetOwnPropertySlot(exec, propertyName, slot))
                return JSValue::encode(slot.getValue(exec, propertyName));
        }
    }

    Identifier ident(exec, property.toString(exec));
    return JSValue::encode(baseValue.get(exec, ident));
}