def test_replace_graph_with_bootstrap(self):
def func(n, x, y, z):
yield n
yield n
#
space = FlowObjSpace()
graph = space.build_flow(func, tweak_for_generator=False)
assert graph.startblock.operations[0].opname == 'generator_mark'
GeneratorIterator = make_generatoriterator_class(graph)
replace_graph_with_bootstrap(GeneratorIterator, graph)
if option.view:
graph.show()
block = graph.startblock
ops = block.operations
assert ops[0].opname == 'simple_call' # e = Entry1()
assert ops[1].opname == 'setattr' # e.g_n = n
assert ops[1].args[1].value == 'g_n'
assert ops[2].opname == 'setattr' # e.g_x = x
assert ops[2].args[1].value == 'g_x'
assert ops[3].opname == 'setattr' # e.g_y = y
assert ops[3].args[1].value == 'g_y'
assert ops[4].opname == 'setattr' # e.g_z = z
assert ops[4].args[1].value == 'g_z'
assert ops[5].opname == 'simple_call' # g = GeneratorIterator(e)
assert ops[5].args[1] == ops[0].result
assert len(ops) == 6
assert len(block.exits) == 1
assert block.exits[0].target is graph.returnblock
def test_tweak_generator_graph(self):
def f(n, x, y, z):
z *= 10
yield n + 1
z -= 10
#
space = FlowObjSpace()
graph = space.build_flow(f, tweak_for_generator=False)
GeneratorIterator = make_generatoriterator_class(graph)
replace_graph_with_bootstrap(GeneratorIterator, graph)
func1 = attach_next_method(GeneratorIterator, graph)
if option.view:
graph.show()
#
assert func1._generator_next_method_of_ is GeneratorIterator
assert hasattr(GeneratorIterator, 'next')
#
graph_next = space.build_flow(GeneratorIterator.next.im_func)
join_blocks(graph_next)
if option.view:
graph_next.show()
#
graph1 = space.build_flow(func1, tweak_for_generator=False)
tweak_generator_body_graph(GeneratorIterator.Entry, graph1)
if option.view:
graph1.show()
