Esempio n. 1
0
static JSBool _buildProps(JSDContext* jsdc, JSDValue* jsdval)
{
    JSContext* cx = jsdc->dumbContext;
    JSPropertyDescArray pda;
    uintN i;

    JS_ASSERT(JS_CLIST_IS_EMPTY(&jsdval->props));
    JS_ASSERT(!(CHECK_BIT_FLAG(jsdval->flags, GOT_PROPS)));
    JS_ASSERT(JSVAL_IS_OBJECT(jsdval->val));

    if(!JSVAL_IS_OBJECT(jsdval->val) || JSVAL_IS_NULL(jsdval->val))
        return JS_FALSE;

    JS_BeginRequest(cx);
    if(!JS_GetPropertyDescArray(cx, JSVAL_TO_OBJECT(jsdval->val), &pda))
    {
        JS_EndRequest(cx);
        return JS_FALSE;
    }

    for(i = 0; i < pda.length; i++)
    {
        JSDProperty* prop = _newProperty(jsdc, &pda.array[i], 0);
        if(!prop)
        {
            _freeProps(jsdc, jsdval);
            break;
        }
        JS_APPEND_LINK(&prop->links, &jsdval->props);
    }
    JS_PutPropertyDescArray(cx, &pda);
    JS_EndRequest(cx);
    SET_BIT_FLAG(jsdval->flags, GOT_PROPS);
    return !JS_CLIST_IS_EMPTY(&jsdval->props);
}
Esempio n. 2
0
static JSBool _buildProps(JSDContext* jsdc, JSDValue* jsdval)
{
    JSContext* cx = jsdc->dumbContext;
    JSObject *obj;
    JSPropertyDescArray pda;
    uintN i;
    JSCrossCompartmentCall *call = NULL;

    JS_ASSERT(JS_CLIST_IS_EMPTY(&jsdval->props));
    JS_ASSERT(!(CHECK_BIT_FLAG(jsdval->flags, GOT_PROPS)));
    JS_ASSERT(JSVAL_IS_OBJECT(jsdval->val));

    if(JSVAL_IS_PRIMITIVE(jsdval->val))
        return JS_FALSE;

    obj = JSVAL_TO_OBJECT(jsdval->val);

    JS_BeginRequest(cx);
    call = JS_EnterCrossCompartmentCall(jsdc->dumbContext, obj);
    if(!call)
    {
        JS_EndRequest(jsdc->dumbContext);
        return JS_FALSE;
    }

    if(!JS_GetPropertyDescArray(cx, obj, &pda))
    {
        JS_EndRequest(cx);
        JS_LeaveCrossCompartmentCall(call);
        return JS_FALSE;
    }

    for(i = 0; i < pda.length; i++)
    {
        JSDProperty* prop = _newProperty(jsdc, &pda.array[i], 0);
        if(!prop)
        {
            _freeProps(jsdc, jsdval);
            break;
        }
        JS_APPEND_LINK(&prop->links, &jsdval->props);
    }
    JS_PutPropertyDescArray(cx, &pda);
    JS_LeaveCrossCompartmentCall(call);
    JS_EndRequest(cx);
    SET_BIT_FLAG(jsdval->flags, GOT_PROPS);
    return !JS_CLIST_IS_EMPTY(&jsdval->props);
}
Esempio n. 3
0
JSDProperty*
jsd_GetValueProperty(JSDContext* jsdc, JSDValue* jsdval, JSString* name)
{
    JSContext* cx = jsdc->dumbContext;
    JSDProperty* jsdprop;
    JSDProperty* iter = NULL;
    JSObject* obj;
    uintN  attrs = 0;
    JSBool found;
    JSPropertyDesc pd;
    const jschar * nameChars;
    size_t nameLen;
    jsval val, nameval;
    jsid nameid;
    JSCrossCompartmentCall *call = NULL;

    if(!jsd_IsValueObject(jsdc, jsdval))
        return NULL;

    /* If we already have the prop, then return it */
    while(NULL != (jsdprop = jsd_IterateProperties(jsdc, jsdval, &iter)))
    {
        JSString* propName = jsd_GetValueString(jsdc, jsdprop->name);
        if(propName) {
            intN result;
            if (JS_CompareStrings(cx, propName, name, &result) && !result)
                return jsdprop;
        }
        JSD_DropProperty(jsdc, jsdprop);
    }
    /* Not found in property list, look it up explicitly */

    if(!(obj = JSVAL_TO_OBJECT(jsdval->val)))
        return NULL;

    if (!(nameChars = JS_GetStringCharsZAndLength(cx, name, &nameLen)))
        return NULL;

    JS_BeginRequest(cx);
    call = JS_EnterCrossCompartmentCall(cx, obj);
    if(!call) {
        JS_EndRequest(cx);

        return NULL;
    }

    JS_GetUCPropertyAttributes(cx, obj, nameChars, nameLen, &attrs, &found);
    if (!found)
    {
        JS_LeaveCrossCompartmentCall(call);
        JS_EndRequest(cx);
        return NULL;
    }

    JS_ClearPendingException(cx);

    if(!JS_GetUCProperty(cx, obj, nameChars, nameLen, &val))
    {
        if (JS_IsExceptionPending(cx))
        {
            if (!JS_GetPendingException(cx, &pd.value))
            {
                JS_LeaveCrossCompartmentCall(call);
                JS_EndRequest(cx);
                return NULL;
            }
            pd.flags = JSPD_EXCEPTION;
        }
        else
        {
            pd.flags = JSPD_ERROR;
            pd.value = JSVAL_VOID;
        }
    }
    else
    {
        pd.value = val;
    }

    JS_LeaveCrossCompartmentCall(call);
    JS_EndRequest(cx);

    nameval = STRING_TO_JSVAL(name);
    if (!JS_ValueToId(cx, nameval, &nameid) ||
        !JS_IdToValue(cx, nameid, &pd.id)) {
        return NULL;
    }

    pd.slot = pd.spare = 0;
    pd.alias = JSVAL_NULL;
    pd.flags |= (attrs & JSPROP_ENUMERATE) ? JSPD_ENUMERATE : 0
        | (attrs & JSPROP_READONLY)  ? JSPD_READONLY  : 0
        | (attrs & JSPROP_PERMANENT) ? JSPD_PERMANENT : 0;

    return _newProperty(jsdc, &pd, JSDPD_HINTED);
}