def lower_yield(self, inst):
yp = self.generator_info.yield_points[inst.index]
assert yp.inst is inst
self.genlower.init_generator_state(self)
# Save live vars in state
# We also need to save live vars that are del'ed afterwards.
y = generators.LowerYield(self, yp, yp.live_vars | yp.weak_live_vars)
y.lower_yield_suspend()
# Yield to caller
val = self.loadvar(inst.value.name)
# Let caller own the reference
self.pyapi.incref(val)
self.call_conv.return_value(self.builder, val)
# Resumption point
y.lower_yield_resume()
# None is returned by the yield expression
return self.pyapi.make_none()
def lower_yield(self, retty, inst):
yp = self.generator_info.yield_points[inst.index]
assert yp.inst is inst
y = generators.LowerYield(self, yp, yp.live_vars)
y.lower_yield_suspend()
# Yield to caller
val = self.loadvar(inst.value.name)
typ = self.typeof(inst.value.name)
# cast the local val to the type yielded
yret = self.context.cast(self.builder, val, typ,
self.gentype.yield_type)
# get the return repr of yielded value
retval = self.context.get_return_value(self.builder, typ, yret)
# return
self.call_conv.return_value(self.builder, retval)
# Resumption point
y.lower_yield_resume()
# None is returned by the yield expression
return self.context.get_constant_generic(self.builder, retty, None)
