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# this is some common infrastructure for code that needs to walk all virtuals
# at a specific instruction. It is used by resume and unroll.
class VirtualVisitor(object):
def visit_not_virtual(self, value):
raise NotImplementedError("abstract base class")
def visit_virtual(self, descr, fielddescrs):
raise NotImplementedError("abstract base class")
def visit_vstruct(self, typedescr, fielddescrs):
raise NotImplementedError("abstract base class")
def visit_varray(self, arraydescr):
raise NotImplementedError("abstract base class")
def visit_varraystruct(self, arraydescr, fielddescrs):
raise NotImplementedError("abstract base class")
def visit_vrawbuffer(self, func, size, offsets, descrs):
raise NotImplementedError("abstract base class")
def visit_vrawslice(self, offset):
raise NotImplementedError("abstract base class")
def visit_vstrplain(self, is_unicode=False):
raise NotImplementedError("abstract base class")
def visit_vstrconcat(self, is_unicode=False):
raise NotImplementedError("abstract base class")
def visit_vstrslice(self, is_unicode=False):
raise NotImplementedError("abstract base class")
def register_virtual_fields(self, virtualbox, fieldboxes):
raise NotImplementedError("abstract base class")
def already_seen_virtual(self, virtualbox):
raise NotImplementedError("abstract base class")
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