Example #1
0
/*  
    Function to iterate and return the next element value.
    NOTE: this is not a method of Array. Rather, it is a callback function for Iterator
 */
static EjsObj *nextValue(Ejs *ejs, EjsIterator *ip, int argc, EjsObj **argv)
{
    EjsFile     *fp;

    fp = (EjsFile*) ip->target;
    if (!ejsIs(ejs, fp, File)) {
        ejsThrowReferenceError(ejs, "Wrong type");
        return 0;
    }

    if (ip->index < fp->info.size) {
#if !ME_CC_MMU || 1
        if (mprSeekFile(fp->file, SEEK_CUR, 0) != ip->index) {
            if (mprSeekFile(fp->file, SEEK_SET, ip->index) != ip->index) {
                ejsThrowIOError(ejs, "Cannot seek to %d", ip->index);
                return 0;
            }
        }
        ip->index++;
        return (EjsObj*) ejsCreateNumber(ejs, mprGetFileChar(fp->file));
#else
        return (EjsObj*) ejsCreateNumber(ejs, fp->mapped[ip->index++]);
#endif
    }

#if ME_CC_MMU && FUTURE
    unmapFile(fp);
    fp->mapped = 0;
#endif

    ejsThrowStopIteration(ejs);
    return 0;
}
Example #2
0
/*
    Function to iterate and return the next element value.
    NOTE: this is not a method of Array. Rather, it is a callback function for Iterator
 */
static EjsObj *nextArrayValue(Ejs *ejs, EjsIterator *ip, int argc, EjsObj **argv)
{
    EjsArray    *ap;
    EjsObj      *vp, **data;

    ap = (EjsArray*) ip->target;
    if (!ejsIs(ejs, ap, Array)) {
        ejsThrowReferenceError(ejs, "Wrong type");
        return 0;
    }
    data = ap->data;
    if (ap->length < ip->length) {
        ip->length = ap->length;
    }
    for (; ip->index < ip->length; ip->index++) {
        vp = data[ip->index];
        assert(vp);
        if (ejsIs(ejs, vp, Void)) {
            continue;
        }
        ip->index++;
        return vp;
    }
    ejsThrowStopIteration(ejs);
    return 0;
}
Example #3
0
/*
    Call the supplied next() function to return the next enumerable item
 */
static EjsObj *nextIterator(Ejs *ejs, EjsIterator *ip, int argc, EjsObj **argv)
{
    if (ip->nativeNext) {
        return (ip->nativeNext)(ejs, ip, argc, argv);
    } else {
        ejsThrowStopIteration(ejs);
        return 0;
    }
}
Example #4
0
/*  
    Function to iterate and return the next element index.
    NOTE: this is not a method of Array. Rather, it is a callback function for Iterator
 */
static EjsNumber *nextKey(Ejs *ejs, EjsIterator *ip, int argc, EjsObj **argv)
{
    EjsFile     *fp;

    fp = (EjsFile*) ip->target;
    if (!ejsIs(ejs, fp, File)) {
        ejsThrowReferenceError(ejs, "Wrong type");
        return 0;
    }
    if (ip->index < fp->info.size) {
        return ejsCreateNumber(ejs, ip->index++);
    }
    ejsThrowStopIteration(ejs);
    return 0;
}
Example #5
0
/*
 *  Call the supplied next() function to return the next enumerable item
 */
static EjsVar *nextIterator(Ejs *ejs, EjsIterator *ip, int argc, EjsVar **argv)
{
    if (ip->nativeNext) {
        return (ip->nativeNext)(ejs, (EjsVar*) ip, argc, argv);
    } else {
        ejsThrowStopIteration(ejs);
        return 0;
    }
#if UNUSED && TODO
    if (ip->nativeNext) {
        return (ip->nativeNext)(ejs, (EjsVar*) ip, argc, argv);
    }
    return ejsRunFunction(ejs, ip->next, ip->target, argc, argv);
#endif
}
Example #6
0
/*
    Function to iterate and return the next element name.
    NOTE: this is not a method of Xml. Rather, it is a callback function for Iterator
 */
static EjsObj *nextXmlKey(Ejs *ejs, EjsIterator *ip, int argc, EjsObj **argv)
{
    EjsXML  *xml;

    xml = (EjsXML*) ip->target;
    if (!ejsIsXML(ejs, xml)) {
        ejsThrowReferenceError(ejs, "Wrong type");
        return 0;
    }

    if (ip->index < mprGetListLength(xml->elements)) {
        return (EjsObj*) ejsCreateNumber(ejs, ip->index++);
    }
    ejsThrowStopIteration(ejs);
    return 0;
}
Example #7
0
/*
    Function to iterate and return the next element value.
    NOTE: this is not a method of Xml. Rather, it is a callback function for Iterator
 */
static EjsObj *nextXmlValue(Ejs *ejs, EjsIterator *ip, int argc, EjsObj **argv)
{
    EjsXML      *xml, *vp;

    xml = (EjsXML*) ip->target;
    if (!ejsIsXML(ejs, xml)) {
        ejsThrowReferenceError(ejs, "Wrong type");
        return 0;
    }

    for (; ip->index < mprGetListLength(xml->elements); ip->index++) {
        vp = (EjsXML*) mprGetItem(xml->elements, ip->index);
        if (vp == 0) {
            continue;
        }
        ip->index++;
        return (EjsObj*) vp;
    }
    ejsThrowStopIteration(ejs);
    return 0;
}
Example #8
0
/*
 *  Function to iterate and return the next element name.
 *  NOTE: this is not a method of Array. Rather, it is a callback function for Iterator
 */
static EjsVar *nextArrayKey(Ejs *ejs, EjsIterator *ip, int argc, EjsVar **argv)
{
    EjsArray        *ap;
    EjsVar          *vp, **data;

    ap = (EjsArray*) ip->target;
    if (!ejsIsArray(ap)) {
        ejsThrowReferenceError(ejs, "Wrong type");
        return 0;
    }
    data = ap->data;

    for (; ip->index < ap->length; ip->index++) {
        vp = data[ip->index];
        if (vp == 0) {
            continue;
        }
        return (EjsVar*) ejsCreateNumber(ejs, ip->index++);
    }
    ejsThrowStopIteration(ejs);
    return 0;
}