44     def listvar(cls, var, metadata):  argument
45         return cls.getvar(var, metadata).split()
48     def intvar(cls, var, metadata):  argument
49         return int(cls.getvar(var, metadata) or 0)
52     def depvar(cls, var, metadata):  argument
53         return bb.utils.explode_deps(cls.getvar(var, metadata))
56     def pkgvar(cls, var, packages, metadata):  argument
57         return dict((pkg, cls.depvar("%s:%s" % (var, pkg), metadata))
61     def taskvar(cls, var, tasks, metadata):  argument
62         return dict((task, cls.getvar("%s:task-%s" % (var, task), metadata))
67         out_dict = dict((var, metadata.getVarFlag(var, flag))
68                     for var in varlist)
75     def getvar(cls, var, metadata, expand = True):  argument
76         return metadata.getVar(var, expand) or ''