def _set_with_template(self, t):
self._with_template = t
illegal_names = t.reserved_names.intersection(self._data)
if illegal_names:
raise exceptions.NameConflictError(
"Reserved words passed to render(): %s" %
", ".join(illegal_names))
def __init__(self, compiler, node=None, parent=None, nested=False):
if parent is not None:
# if we are the branch created in write_namespaces(),
# we don't share any context from the main body().
if isinstance(node, parsetree.NamespaceTag):
self.declared = set()
self.topleveldefs = util.SetLikeDict()
else:
# things that have already been declared
# in an enclosing namespace (i.e. names we can just use)
self.declared = set(parent.declared).\
union([c.name for c in parent.closuredefs.values()]).\
union(parent.locally_declared).\
union(parent.argument_declared)
# if these identifiers correspond to a "nested"
# scope, it means whatever the parent identifiers
# had as undeclared will have been declared by that parent,
# and therefore we have them in our scope.
if nested:
self.declared = self.declared.union(parent.undeclared)
# top level defs that are available
self.topleveldefs = util.SetLikeDict(**parent.topleveldefs)
else:
self.declared = set()
self.topleveldefs = util.SetLikeDict()
self.compiler = compiler
# things within this level that are referenced before they
# are declared (e.g. assigned to)
self.undeclared = set()
# things that are declared locally. some of these things
# could be in the "undeclared" list as well if they are
# referenced before declared
self.locally_declared = set()
# assignments made in explicit python blocks.
# these will be propagated to
# the context of local def calls.
self.locally_assigned = set()
# things that are declared in the argument
# signature of the def callable
self.argument_declared = set()
# closure defs that are defined in this level
self.closuredefs = util.SetLikeDict()
self.node = node
if node is not None:
node.accept_visitor(self)
illegal_names = self.compiler.reserved_names.intersection(
self.locally_declared)
if illegal_names:
raise exceptions.NameConflictError(
"Reserved words declared in template: %s" %
", ".join(illegal_names))