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# Check that yield-from can work without heap allocation
import micropython
# Yielding from a function generator
def sub_gen(a):
for i in range(a):
yield i
def gen(g):
yield from g
g = gen(sub_gen(4))
micropython.heap_lock()
print(next(g))
print(next(g))
micropython.heap_unlock()
# Yielding from a user iterator
class G:
def __init__(self):
self.value = 0
def __iter__(self):
return self
def __next__(self):
v = self.value
self.value += 1
return v
g = gen(G())
micropython.heap_lock()
print(next(g))
print(next(g))
micropython.heap_unlock()
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