46 lines
1.6 KiB
Python
46 lines
1.6 KiB
Python
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"""Instantiate a forward declaration."""
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import gtwrap.interface_parser as parser
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from gtwrap.template_instantiator.helpers import instantiate_name
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class InstantiatedDeclaration(parser.ForwardDeclaration):
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"""
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Instantiate typedefs of forward declarations.
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This is useful when we wish to typedef a templated class
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which is not defined in the current project.
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E.g.
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class FactorFromAnotherMother;
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typedef FactorFromAnotherMother<gtsam::Pose3> FactorWeCanUse;
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"""
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def __init__(self, original, instantiations=(), new_name=''):
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super().__init__(original.typename,
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original.parent_type,
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original.is_virtual,
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parent=original.parent)
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self.original = original
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self.instantiations = instantiations
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self.parent = original.parent
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self.name = instantiate_name(
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original.name, instantiations) if not new_name else new_name
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def to_cpp(self):
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"""Generate the C++ code for wrapping."""
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instantiated_names = [
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inst.qualified_name() for inst in self.instantiations
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]
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name = "{}<{}>".format(self.original.name,
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",".join(instantiated_names))
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namespaces_name = self.namespaces()
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namespaces_name.append(name)
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# Leverage Typename to generate the fully qualified C++ name
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return parser.Typename(namespaces_name).to_cpp()
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def __repr__(self):
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return "Instantiated {}".format(
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super(InstantiatedDeclaration, self).__repr__())
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