def collect_package_restrictions(restrict, attrs=None, invert=False):
"""Collect PackageRestriction instances inside a restriction.
:param restrict: package instance to scan
:param attrs: None (return all package restrictions), or a sequence of
specific attrs the package restriction must work against.
"""
if not isinstance(restrict, (list, tuple)):
restrict = [restrict]
for r in restrict:
if not isinstance(r, restriction.base):
raise TypeError('restrict must be of a restriction.base, '
f'not {r.__class__.__class__}: {r!r}')
if attrs is None:
for r in iflatten_func(restrict, _is_package_instance):
yield r
else:
attrs = frozenset(attrs)
for r in iflatten_func(restrict, _is_package_instance):
if invert == attrs.isdisjoint(getattr(r, 'attrs', ())):
yield r
def collect_package_restrictions(restrict, attrs=None, invert=False):
"""Collect PackageRestriction instances inside a restriction.
:param restrict: package instance to scan
:param attrs: None (return all package restrictions), or a sequence of
specific attrs the package restriction must work against.
"""
if not isinstance(restrict, (list, tuple)):
restrict = [restrict]
for r in restrict:
if not isinstance(r, restriction.base):
raise TypeError(
"restrict must be of a restriction.base, not %s: %r" % (
r.__class__.__name__, r))
if attrs is None:
for r in iflatten_func(restrict, _is_package_instance):
yield r
else:
attrs = frozenset(attrs)
for r in iflatten_func(restrict, _is_package_instance):
if invert == attrs.isdisjoint(getattr(r, 'attrs', ())):
yield r
def visit_atoms(pkg, stream):
if not pkg.eapi.options.transitive_use_atoms:
return iflatten_instance(stream, atom)
return iflatten_func(stream, _eapi2_flatten)
def visit_atoms(pkg, stream):
if not pkg.eapi.options.transitive_use_atoms:
return iflatten_instance(stream, atom)
return iflatten_func(stream, \
lambda x: isinstance(x,atom) and not isinstance(x,atom._transitive_use_atom))
def visit_atoms(pkg, stream):
if not pkg.eapi.options.transitive_use_atoms:
return iflatten_instance(stream, atom)
return iflatten_func(stream, _eapi2_flatten)