comparison mercurial/revset.py @ 32819:4710cc4dac99

smartset: extract method to slice abstractsmartset

Sub classes can provide optimized implementations.

32818:9ddb18ae342e

    # i18n: "limit" is a keyword
    ofs = getinteger(args.get('offset'), _("limit expects a number"), default=0)
    if ofs < 0:
        raise error.ParseError(_("negative offset"))
    os = getset(repo, fullreposet(repo), args['set'])
    result = []
    it = iter(os)
    for x in xrange(ofs):
        y = next(it, None)
        if y is None:
            break
    for x in xrange(lim):
        y = next(it, None)
        if y is None:
            break
        result.append(y)
    ls = baseset(result, datarepr=('<limit n=%d, offset=%d, %r>', lim, ofs, os))
    if order == followorder and lim > 1:
        return subset & ls
    return ls & subset

@predicate('last(set, [n])', safe=True, takeorder=True)

        lim = getinteger(l[1], _("last expects a number"))
    if lim < 0:
        raise error.ParseError(_("negative number to select"))
    os = getset(repo, fullreposet(repo), l[0])
    os.reverse()
    result = []
    it = iter(os)
    for x in xrange(lim):
        y = next(it, None)
        if y is None:
            break
        result.append(y)
    ls = baseset(result, datarepr=('<last n=%d, %r>', lim, os))
    if order == followorder and lim > 1:
        return subset & ls
    ls.reverse()
    return ls & subset

32819:4710cc4dac99

    # i18n: "limit" is a keyword
    ofs = getinteger(args.get('offset'), _("limit expects a number"), default=0)
    if ofs < 0:
        raise error.ParseError(_("negative offset"))
    os = getset(repo, fullreposet(repo), args['set'])
    ls = os.slice(ofs, ofs + lim)
    if order == followorder and lim > 1:
        return subset & ls
    return ls & subset

@predicate('last(set, [n])', safe=True, takeorder=True)

        lim = getinteger(l[1], _("last expects a number"))
    if lim < 0:
        raise error.ParseError(_("negative number to select"))
    os = getset(repo, fullreposet(repo), l[0])
    os.reverse()
    ls = os.slice(0, lim)
    if order == followorder and lim > 1:
        return subset & ls
    ls.reverse()
    return ls & subset